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American Solar Challenge Racers Head For Canada

coondoggie writes "Solar race cars this week began their nine-day, 2,400 mile chase from Dallas to Calgary, Alberta using only the sun for fuel. The 24 teams in the American Solar Challenge race are mainly US college teams including entries from MIT, Ohio State and Northwestern. The University of Michigan's Continuum car is the defending champ, having won the Challenge in Australia last year. The University of Michigan has won four out of the eight North American Solar Challenges it has entered with its team of more than 100 engineering students, who have vowed to defend their title this year."

144 comments

  1. M Go Blue by MarkvW · · Score: 0, Flamebait

    Hail to the Victors!
    Beat OSU!

    1. Re:M Go Blue by Anonymous Coward · · Score: 0

      That shouldn't be too hard, seeing as how Ohio State didn't make it into this year's solar challenge...

    2. Re:M Go Blue by Anonymous Coward · · Score: 0

      At least you can beat us in something! Take your (small) victories where you can I guess, since November will bring the painful reminder of our superiority back into crystal clear focus. Can we say 5 in a row?

      O-H...

    3. Re:M Go Blue by Anonymous Coward · · Score: 0

      I'm glad our rivals in Columbus are focused on the important things like throwing and carrying an oblong ball down a field instead of developing new technologies to address the impending energy crisis...

    4. Re:M Go Blue by Anonymous Coward · · Score: 0

      Beating UM like little girls once every November is hardly taking away from the vast accomplishments that Ohio State achieves. I think it's what we call "icing on the cake". I realize you're just some AC coward who probably never even attended UM, but let's not pretend UM is the only school in the world that understands the future of vehicle engineering. In fact, where was the UM team at Challenge X? How about the EcoCar challenge? What's that, you weren't even invited? I guess the United States Department of Energy disagrees with which school is on the cutting edge of new technology to combat our energy crisis.

      Just as an aside, we've got an electric powered vehicle land speed record under our belts and will soon have the fastest hydrogen powered car on the planet as well. It seems that you're solar powered trip to Canada is a lot less impressive then you originally thought.

  2. photos of prep day in Plano, Texas by Anonymous Coward · · Score: 5, Informative

    Here are some photos I shot of the teams preparing their cars the day before the rally started in Plano, Texas.

    North American Solar Challenge 2008 prep day photos

    1. Re:photos of prep day in Plano, Texas by shlashdot · · Score: 1

      re the first photo, "Close up of one of the panels on the Durham University Solar Car. The coating on this particular panel looked like it had shattered, giving it a pattern of cracks similar to broken glass."

      fyi, it is broken glass.

      cool pictures.

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    2. Re:photos of prep day in Plano, Texas by honestmonkey · · Score: 2, Informative

      My wife and I wandered around as well and our pictures look almost exactly like yours.

      I wondered why they said "Dallas to Canada" when it was obviously starting in Plano, which, while near Dallas, is not, in fact, Dallas.

      The kids were all very eager and informative. Good luck to them that's still in the race.

      --
      Everything you know is wrong, Just forget the words and sing along.
    3. Re:photos of prep day in Plano, Texas by Anonymous Coward · · Score: 0

      Quite possibly because nobody knows where Plano is.

    4. Re:photos of prep day in Plano, Texas by WillRobinson · · Score: 1

      I work in Plano, and did not even know it was going on, to bad this post was not *BEFORE* the race started. I would have loved to see these, as I make processing equipment for a solar cell manufacture.

  3. Michigan didn't win the 2007 World Solar Challenge by grimsnaggle · · Score: 5, Informative
    Michigan did not win the 2007 World Solar Challenge. Team Nuon did so with their Nuna4.

    Michigan won the 2005 American Solar Challenge race by about ten minutes over Minnesota.

    My team won the 2005 American Solar Challenge for the stock class, edging out Berkeley by 26 minutes.

  4. Canada? by Anonymous Coward · · Score: 4, Funny

    They're having a solar race... in Canada?

    1. Re:Canada? by clampolo · · Score: 0

      They're having a solar race... in Canada?

      They just need to wait on the side of the road for another month before they get some sunshine again and can finish the race.

    2. Re:Canada? by Anonymous Coward · · Score: 0

      The weather here in Calgary has been uncharacteristically cloudy for this time of year. Lots of rain and thunderstorms.

    3. Re:Canada? by Tool+Man · · Score: 4, Insightful

      Yeesh. Everyone's racing in the same direction, silly wabbit. Besides, it's summer here now, so there's lots of sunlight to be had.

      A local (Winnipeg) community college is participating too, here's their race blog: http://raycer.wordpress.com/

    4. Re:Canada? by s.bots · · Score: 1

      And very drastic changes during the day. Last week there was that massive downpour of hail that lasted about ten minutes, and then sun like an hour later. Calgary's weather is so fucked.

    5. Re:Canada? by Jherek+Carnelian · · Score: 1

      Yeah, and it's dangerous up there.

    6. Re:Canada? by Sparr0 · · Score: 1

      I know you said this in jest, but it brings up a valid problem... A race such as this could come down to random luck with regards to the weather. I know cross country racing is so much more attention grabbing, but a 2400 mile circuit on a race track would be far more fair. Say one car is slightly behind the leader, approaching the finish, and both are running on battery reserves under cloud cover after traveling the whole race in virtually identical conditions. A short burst of sunshine on the trailing car could, completely at random, give it the win, despite it being some small amount less efficient/fast than the other car.

    7. Re:Canada? by shlashdot · · Score: 3, Insightful

      Um, that's why the race is *2400 Miles* long. You don't win due to a random 30 second event. By your logic they should set up a dynamometer and a giant light bulb...

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    8. Re:Canada? by Anonymous Coward · · Score: 0

      eh... like we're perfecting a frost2electicity panel eh.

      Then we're using the electricity to run chillers to cool down our beer.

    9. Re:Canada? by codemachine · · Score: 1

      Actually, there will be more minutes of sunlight in a day the further north you go. Of course, the weather in Alberta hasn't exactly been great this week. Tornado near Vulcan yesterday, and lots of storms all week.

    10. Re:Canada? by Sparr0 · · Score: 1

      That's just it, the distance is moot. The race could be 2 miles or 200000 miles. If two cars are mostly evenly matched, which at least SOME of the cars in this race will be (although probably not the leaders), then their results will come down to the last (of many) random 30 second event. And the problems will cascade. Imagine the trip is mostly sunny, but with a few minutes of cloud cover that hits the leader on the first day. When the effects of that lost bit of power hit them, they could fall back into last place, and then be subject to future random events that affect the losers, not the leaders, despite having the best car.

    11. Re:Canada? by Midnight+Thunder · · Score: 2, Funny

      They're having a solar race... in Canada?

      Between having to stay in igloos, endless darkness and putting on snow chains, it is going to be tough ;)

      --
      Jumpstart the tartan drive.
    12. Re:Canada? by Eternauta3k · · Score: 2, Insightful

      IANAStatiscian
      You could say the race is affected by a number of dice rolls which can either harm or benefit each car. The longer the race, the more rolls and the steeper the bell curve (actually, binomial distribution), thus getting any significant benefit or harm becomes less likely

      --
      Yeah. Would you choose a neurosurgeon who pokes around people's brains in his spare time? I wouldn't.
    13. Re:Canada? by conlaw · · Score: 1

      Yes, and let's hope none of them need to call home http://ask.slashdot.org/article.pl?sid=08/07/16/1442216

    14. Re:Canada? by Sparr0 · · Score: 1

      Note that cars in close proximity tend to roll the same on their dice, and one bad roll can put you in a worse "bracket" for the entire race, or one good roll in a better.

    15. Re:Canada? by Monkey_Genius · · Score: 1

      "Besides, it's summer here now..."
      Summer? Canada? Really?

      --
      I've got your sig, right here.
    16. Re:Canada? by Spinalcold · · Score: 1

      In summer we have lots of places that will get 24 hrs of sunlight (or at least twilight). They're lucky they're not doing it in winter though, they would never make it, heh.

    17. Re:Canada? by passthesalt · · Score: 3, Informative

      Actually in Canada, in the summer, there is more sunshine than U.S. (the days are longer than the nights). Today, there was 16 hours of sunshine in Calgary. In Dallas, there were 14 hours, 4 minutes.

    18. Re:Canada? by flewp · · Score: 4, Insightful

      So then the team is the one who is best prepared for these changing conditions. Seems kind of fair to me. Having a longer race will expose the teams to greater variety in conditions, and this can only be a good thing. You're not going to have static, ideal conditions in the real world - and presumably, these cars/this race is being held to promote and advance tech that could make it to the consumers.

      --
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    19. Re:Canada? by Tool+Man · · Score: 1

      Yup, even here. Of course, when you think we're cold, we are thinking the same thing about farther North in our own country.

      Churchill is in my own province, and they have *polar bears*, so no, Winnipeg's not cold. Of course, I say this because I haven't been there yet, and the weather report usually says it's only a few degrees colder most of the time.

    20. Re:Canada? by Auntie+Virus · · Score: 1

      The weather here in Calgary has been uncharacteristically cloudy for this time of year. Lots of rain and thunderstorms

      You must be new here (in Calgary) We always get thunderstorms/hail starting right around Stoopede week. Have been for years.

      --
      Why yes, I *AM* new here. Why?
    21. Re:Canada? by Yvan256 · · Score: 1

      We get sun rays too, you know.

      Well, some of the time.

      Well, at least half the time.

      It's called "day time".

    22. Re:Canada? by Eoika · · Score: 2, Funny

      So they're rolling for initiative?

    23. Re:Canada? by WebCowboy · · Score: 1

      Well, considering that the race is in the summer, and in the summer it gets light well before 6AM and doesn't get dark until after 10PM a solar race is very appropriate.

      By the way, southern Saskatchewan--in Canada and within a few hours driving distance from Calgary--gets the MOST sunlight of anywhere on the continent (in the summer in the far north is is continuously daylight for many days, but the light isn't as bright/intense as it is in the southern Prairies).

    24. Re:Canada? by Inzkeeper · · Score: 1

      Very true. If they take a wrong turn and end up 1000km north of Calgary, communications could become a significant concern.

  5. World Solar Challenge by MRe_nl · · Score: 5, Informative

    In 2001 the Nuna of the Delft University of Technology from the Netherlands, participating for the first time, was the fastest.

    In 2003 the Nuna 2, the successor to the winner of 2001 won again, with an average speed of 97 km/h (60 mph).

    In 2005 the Nuna team scored a hat-trick with their third victory in a row; their Nuna 3 won with a record average speed of 102.75 km/h (63.85 mph). Aurora finished in second place followed by the University of Michigan in third.

    In 2007 the Dutch Nuon Solar team scored their fourth successive victory with Nuna4 in the challenge class averaging 90.07 km/h (55.97 mph) under the new rules, while the Ashiya team with their car Tiga won the race in the adventure class under the old rules with an average speed of 93.53 km/h (58.12 mph).

    But it makes sense, with the average Dutch weather our solar tech has to be really good!

    --
    "Kill 'em all and let Root sort 'em out"
    1. Re:World Solar Challenge by Anonymous Coward · · Score: 0

      But with average traffic density and speed on Dutch roads, it doesn't really need to go that fast...

    2. Re:World Solar Challenge by mephistophyles · · Score: 1

      Some more fun info for those interested:

      The peak speed for the Nuna in 2007 was 142 km/h.

      Upon finishing the race, the Belgian Umicore team and the Australian Aurora team were trailing the Nuna by 120 and 170 km respectively.

      Two solar cars from the United States crashed, including the University of Michigan's much-hyped and extremely well-funded Continuum. After what the Stanford solar team described on its blog as a "hectic" race start, with solar cars launched into the race with only a minute between each start, and caravans scrambling to catch up (each car has to be accompanied by a lead vehicle and chase vehicle), U-M's car collided with its own lead vehicle. U-M blames an abrupt stop by the Stanford team for the accident, but whatever the cause, Continuum suffered significant damage to its canopy and front solar modules.

    3. Re:World Solar Challenge by Anonymous Coward · · Score: 0

      Two solar cars from the United States crashed, including the University of Michigan's much-hyped and extremely well-funded Continuum. After what the Stanford solar team described on its blog as a "hectic" race start, with solar cars launched into the race with only a minute between each start, and caravans scrambling to catch up (each car has to be accompanied by a lead vehicle and chase vehicle), U-M's car collided with its own lead vehicle. U-M blames an abrupt stop by the Stanford team for the accident, but whatever the cause, Continuum suffered significant damage to its canopy and front solar modules.

      It is worth mentioning that the other solar car from the United States that crashed was Stanford's, and that their car was totaled (which is why they are not participating in the NASC this year). It is also worth mentioning that, after the first-day accident put Continuum temporarily in last place, they passed 25 cars on their way to arriving at the finish line 4th overall, and placing 7th in their class in elapsed time. (The discrepancy between arrival time and elapsed time is due to the fact that Continuum spent much less time charging its batteries at each of the race stops than the other cars.)

  6. Re:Michigan didn't win the 2007 World Solar Challe by Anonymous Coward · · Score: 4, Funny

    I wouldn't get all huffy about it, Michigan won't win anyway, Appalachian State has an entry...

  7. Breakdown of time by BigJClark · · Score: 5, Funny


    Time to drive from Dallas to Calgary - 2 days
    Time to negotiate border crossing - 7 days

    --

    Hi, I Boris. Hear fix bear, yes?
    1. Re:Breakdown of time by Wandering+Wombat · · Score: 5, Funny

      Not to mention confiscating your technological gadgets. You thought getting a laptop past the border was hard, let's try an entire vehicle that no-one's seen before that some young punks claim is a "magic car" that runs on sunshine and happiness.

      --
      I like to place meaningful quotes in my sig, so people will know that I know what meaningful quotes are.
    2. Re:Breakdown of time by BigJClark · · Score: 1


      I'd have to agree, as Alberta seems to be merging into "Little USA" mentality as of late.

      --

      Hi, I Boris. Hear fix bear, yes?
    3. Re:Breakdown of time by Anonymous Coward · · Score: 0

      Umm you're thinking of the return leg.

  8. I see... by tttonyyy · · Score: 4, Funny

    more than 100 engineering students

    One to turn it on, the rest to shine flashlights on it?

    --
    biopowered.co.uk - catalytically cracking triglycerides for home automotive use since 2008. Just say no to big oil!
  9. Solar power in Canada.... by geogob · · Score: 1, Informative

    As long as the stay away from Quebec, this might work out nicely. If they do, they risk being stalled in the middle of nowhere due to the lack of sun or simply wreck their fragile cars on our beautiful roads.

    In June, we had 23 days of rain here. I could hardly power my LED garden lamps more than 15 minutes after sun set.

    Environment Canada has forecast a dry and warm summer. Considering that for the month of June, and I quote the EC experts, "we've never seen that much rain recorded history", and that the dry and warm summer trend should continue on, I think it safe to assume we'll have a quite a (boat) ride with the weather this summer.

    Unless they build little dams on the car roofs and install water turbines, these will have a hard time here. (understand, a slow - or stopped - time).

    1. Re:Solar power in Canada.... by Samantha+Wright · · Score: 5, Funny

      Yeah, there aren't many paths from Texas to Alberta that don't go through Quebec. I hope they make it through okay!

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
    2. Re:Solar power in Canada.... by billcopc · · Score: 1

      Water turbine-powered green vehicles... I think you're on to something!

      --
      -Billco, Fnarg.com
    3. Re:Solar power in Canada.... by WebCowboy · · Score: 1

      As long as the stay away from Quebec

      Wouldn't driving from Dallas to Calgary be something akin to flying from New York to London with a layover in Beijing?

      Seems to me if you are in a contest to get from point a to point b in the shortest time, you'd, well, take the shortcuts right?

    4. Re:Solar power in Canada.... by Hasmanean · · Score: 1

      Err, the French settled the entire Mississipi river, as is evidenced by the French influence in New Orleans. If it hadn't been for the Louisiana purchase, Quebec would have been (barely) on the route between Texas and Alberta.

      Of course, it never happened.

      --
      Hasan
  10. Applause Well Deserved, but Starkly Absent by TheLazySci-FiAuthor · · Score: 4, Insightful

    I think this kind of competition is just great, what with the innovation which is always spawned by things of this nature.

    However, I can't help but notice that although I feel pride for the competitors and feel happy that progress in this direction is taking place, the public interest seems lacking. And I don't just mean Joe Shmoe is unamused: at the time of this posting the article has been front page slashdot for 5 minutes with 1 comment.

    Is it because these vehicles, while being great proofs of concept, do point out the current weakness of real-time solar power? Are the cars just too lightly built and cheesy looking?

    Perhaps a way to capture more popular attention (and thus imagination) might be to have a Solar "Charged" race. This would catch more interest I think.

    Stipulate that the vehicles must charge their batteries using solar power and utilize only the power they have derived from the sun. This would allow high-performance electric cars to be showcased doing their sports-car killing speed runs whilst whining by like a flying saucer.

    If there is one thing the scientists and geeks need to evolve, it's a better sense of PR.

    If you need evidence that the nerdy are bad with PR just look at some of the scary, weird names used for our creations:

    * Linux - sounds like an evil species of aliens - 'run! the Linux are attacking!'

    * The Gimp - do I need to say more?

    * Ubuntu - beautiful in translation, terrible as a mnemonic for the target 'lay' audience - 'ooo-but what?'

    1. Re:Applause Well Deserved, but Starkly Absent by Anonymous Coward · · Score: 0

      It's not enough to show that some ridiculous looking, impractical car can run on solar power. We've known that for years. Make a car, that someone would actually want to use, being run on solar power and I'll be impressed.

    2. Re:Applause Well Deserved, but Starkly Absent by Gat0r30y · · Score: 4, Interesting

      You have a great point. 1000's will show up to watch regular cars drive around in a circle. Real innovation somehow doesn't draw such a crowd. I think if we got enough hot chicks in racing T's, set up some bar-be-que and encouraged the liberal administration of fermented beverages they could probably gather an audience.

      On another note, I have an idea as to why electric cars (even ridiculously fast ones like the tesla) don't get the "hotness" factor that other race cars get - they don't make loud noise. I think the visceral reaction to a loud muffler is what draws the "speed" emotion from folks. (Incidentally it also explains why every honda civic down the block has a muffler the size of a cantelope).

      --
      Prediction: The real iPhone killer is going to be sex robots from Japan. Think about it.
    3. Re:Applause Well Deserved, but Starkly Absent by kristopher_d · · Score: 2, Funny

      Among true sports car enthusiasts the Tesla Roadster is a wonderful peice of tech, that performs on a level on par with some super cars, for about 2 hours. 5 hours to recharge, and 250 mile range if your ginger on the accelerator means you can't go out and play all day long. Trust me, the performance characteristics of electric vehicles are very cool, they're just not ready for prime time. More on topic, though, yes, solar charged would be much better, allowing much faster cars. And yeah, get the chicks and beer out there. Why not? It may be primal, but so is competition.

    4. Re:Applause Well Deserved, but Starkly Absent by Hal-9001 · · Score: 2, Informative

      Stipulate that the vehicles must charge their batteries using solar power and utilize only the power they have derived from the sun. This would allow high-performance electric cars to be showcased doing their sports-car killing speed runs whilst whining by like a flying saucer.

      This is essentially the existing rule in the North American Solar Challenge (and I'm pretty sure in the other solar challenges, like the upcoming South African Solar Challenge and the 2009 World Solar Challenge), and the operating principle behind every competing solar car. No one powers their car directly from the solar array--they all use rechargable batteries and use the solar array to charge those batteries. They're fast, too--the current University of Michigan solar car has been tested at more than 80 mph on the racetrack, and the past two World Solar Challenge-winning cars from the Dutch Nuon team had comparable top speeds.

      --
      "It take 9 months to bear a child, no matter how many women you assign to the job."
    5. Re:Applause Well Deserved, but Starkly Absent by khallow · · Score: 1

      Is it because these vehicles, while being great proofs of concept, do point out the current weakness of real-time solar power? Are the cars just too lightly built and cheesy looking?

      Yes. The internal combustion engine generates a lot of power. Googling around I read about 15kW sustained power (to move an "average" US car at 50 MPH). That would be 45 to 100 square meters of solar cell (15% to 33% efficiency solar cells) to get equivalent power from solar. So no matter what, you're speaking of lower power production than an internal combustion engine. I don't see that the general public is going to be interested in that.

    6. Re:Applause Well Deserved, but Starkly Absent by mephistophyles · · Score: 1

      It might also be related to the amount of PR per team and their results. If a team crashes and burns (not literally I hope) then they might seem less inclined to flout their performance. However, the Dutch team from the TU Delft (the Nuna, that won the last 4 WSC in Australia) have had such success and press coverage here in Holland that that too is declining because now it's almost become expected for them to win. I'm sorry if that sounds arrogant, but that is how our uni sees the matter.

    7. Re:Applause Well Deserved, but Starkly Absent by Anonymous Coward · · Score: 0

      Its not just the noise - its the vibration. Hot women love getting in sports cars because, along with the excitement of speed and noise, and of course, the car being really expensive, therefore showing its owner obviously can provide for her and has a large penis (in their thinking); it also vibrates like a motherfucker. Of course, vibration isn't the main thing, otherwise all these hot women would be out on the streets with rabbits hanging out of their coochies. Put the vibration and the other factors I just listed together though, and its no wonder the sports cars get the hot chicks. The Tesla could only hope to achieve the same results, MAYBE, by putting stickers everywhere on the vehicle indicating its price. Even then, thats not guaranteed, because lots of guys have expensive non-sports cars and still don't get a fraction of the pussy that the sports car guys do.

    8. Re:Applause Well Deserved, but Starkly Absent by Idiomatick · · Score: 2, Informative

      Close, it charges in 3.5hrs and lasts around 4.5. You might have been thinking of an older version.

    9. Re:Applause Well Deserved, but Starkly Absent by Anonymous Coward · · Score: 0

      My new rules:

      - Entries must have a sound trailer to compete in a db drag race. Play engine noises at the beginning and end of race. Detach em just outside of start/finish event.
      - Entries can drive at night, and also switch out batteries in a given dimension. Each switch costs them 1hr. Maybe we can get data to come up with standards, and finally show people how much cheaper it'd be than a nation of of hydrogen or propane refueling stations.
      - Beer and cigarette companies are encouraged to sponsor
      - Drivers must compete in beauty competitions focusing on singing and dancing. Hmm, not sure how much these people should actually be allowed to drive, I'm sure that can be worked out somehow.
      - Most important, the entire event is covered by a reality show, with winning team getting $X million. The money doubles if the driver marries one of the engineering team nerds. Viewers can use text messages to help their favorite team. Title: "So you think you can dance, you Idyllic American Beauty...and Geeks"

    10. Re:Applause Well Deserved, but Starkly Absent by megaditto · · Score: 2, Insightful

      They might be by the time gas hits $12/gal

      --
      Obama likes poor people so much, he wants to make more of them.
    11. Re:Applause Well Deserved, but Starkly Absent by Red+Flayer · · Score: 2, Funny

      And I don't just mean Joe Shmoe is unamused: at the time of this posting the article has been front page slashdot for 5 minutes with 1 comment.

      Obviously that's because everyone was reading TFA.

      --
      "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    12. Re:Applause Well Deserved, but Starkly Absent by objekt · · Score: 1

      The Lightning GT (YA electric car) has an engine sound synthesizer built-in. Adding a little vibration would be trivially simple.

      --
      -- Boycott Shell
    13. Re:Applause Well Deserved, but Starkly Absent by objekt · · Score: 1

      A smaller solar array could charge the batteries as the car sits in the sun all day while I'm at work, and would provide enough power to drive me home. This is assuming I can't plug in while I'm at work.

      --
      -- Boycott Shell
    14. Re:Applause Well Deserved, but Starkly Absent by khallow · · Score: 1

      Yea, or you could plug in and charge off huge solar cells suspended above the parking lot. For this race though, you have to rely on what's on the vehicle and there appears to be little opportunity to charge up batteries.

  11. 100 engineering students, wait, WHAT!!! by Anonymous Coward · · Score: 0

    I'm an engineering student from University of Sherbrooke, a small (30 000 full time students) college in Canada which has 1400 engineering undergrads. For me, a hundred student team looks excessive. I mean, we do participate in these engineering competitions, but there is no way we could have that many people in our teams. Yet, we still have some pretty decent rankings in SAE Challenges, winning some events. There is a very strong difference in funding of these projects between the big and the small universities, but small ones can still manage to win. It's neither the number of participants in a team nor the amount of funding they get that makes winning or losing, it's the passion.

  12. WMU! by smidget2k4 · · Score: 2, Funny

    Go Western Michigan! Oh... wait... our car broke already...

    Go someone else!

    1. Re:WMU! by Ogive17 · · Score: 1

      I was part of the SAE Aero challenge in '99, our team's plane suffered damage during shipping and the WMU guys were the only ones nice enough to even offer help. WMU has my vote, even with a broken car!

      --
      "Action without philosophy is a lethal weapon; philosophy without action is worthless."
  13. Batteries not included. by geckipede · · Score: 1

    I've always wanted to see a solar powered articulated lorry with battery intermediate systems. If you are going to accept that with solar panels as the only energy input the vehicle will never be ready to use at any time, you might as well build something big that can carry several tonnes of batteries and let you make a respectable length of journey before having to sit in the sun for a month to recharge.

  14. The right kind of innovation? by EmbeddedJanitor · · Score: 1, Redundant
    I'm not sure that solar racing really showcases the right kinds of innovation. The winners tend to be those with the most efficient (and expensive) PV technology. Having the PV labs focus so much effort on expensive PV does not really help deployment of PV as a practical real world solution.

    The most important consideration in making PV practical is to reduce $perW. Who cares about efficiency as a goal of itself? If someone was to make 10% efficient roofing tiles at low $perW then you could make a whole roof out of them.

    Research really needs to shift more towards $perW.

    --
    Engineering is the art of compromise.
    1. Re:The right kind of innovation? by Iamthecheese · · Score: 1

      I would say thats not quite enough. Cheap, efficient solar panels are available, they just don't last too long. It costs less over a year but much, much more over the span of 20 years or more. Furthermore, the only part of a solar panel's life that matters here on earth is the tim until output drops to 50%. I think producers should be concentrating on $/Watt/High output part of total product lifespan.

      --
      If video games influenced behavior the Pac Man generation would be eating pills and running away from their problems.
    2. Re:The right kind of innovation? by kaizokuace · · Score: 1

      I think a better way to get solar powered racing to fruition would first need a governing body like the FIA does for F1 racing. Next on the PV tech. There needs to be standardized restrictions. This way the power source is the same for each car making racing fair and interesting. The reason pro racing is interesting is because the rules make sure the competition is very close and the drivers and teams are what make the wins. The human element is whats important in any sport. Imposing PV cell restrictions that are modified every season to use newer tech will help upgrade the industry in a more steady pace. Forcing teams to buy and use the PV cells for that season will force some production companies to produce those cells developing cheaper methods of production etc. This is how to help push an industry using a racing program.

      --
      Balderdash!
  15. Well, duh! by Anonymous Coward · · Score: 0

    You can only drive a solar car at midnight if you're above the arctic circle! (By definition, there is no sunset above the arctic circle on midsummer's eve.) A midwinter solar race in Canada might be a problem... but not a midsummer race. A midwinter race in Australia, where everything is backwards, would be perfectly feasible.

  16. Re:Blasphemy by Anonymous Coward · · Score: 0

    Spoken like a true Buckeye.

  17. Moose repellant by OrangeTide · · Score: 2, Informative

    Moose versus Solar Car would not harm the moose, but it would be unlikely the car would roll again. What sort of technology is being employed for the very serious issue of possible Moose Damage inflicted onto a solar car during a race?

    --
    “Common sense is not so common.” — Voltaire
    1. Re:Moose repellant by maxume · · Score: 1

      "drivers"

      --
      Nerd rage is the funniest rage.
    2. Re:Moose repellant by tulmad · · Score: 2, Funny

      If m00se get involved, I'd keep an eye out for some people being sacked.

      --
      "In case of emergency, break glass. Scream. Bleed to death."
    3. Re:Moose repellant by inasity_rules · · Score: 1

      regenerative breaking. For up to 20% of your energy back.

      Also, if your batteries are flat and its cloudy, since moose power is solar(they eat green plants), why not make a plan involving a moose and some rope...?

      --
      I have determined that my sig is indeterminate.
  18. Why not? The sun's great up here. by Cordath · · Score: 5, Informative

    Calgary is one of the sunniest cities in North America in terms of amount of sunshine per year. Southern Alberta is, in large part, a semi-arid region with very low humidity, so the Sun really packs a wallop here due to very low atmospheric extinction. At this time of year the days are also longer the further North you go. Those cars will probably make better time once they cross into Canada than they will in most parts of the U.S..

    However, Alberta isn't really a solar energy hot-spot. Wind power is where it's at. Alberta produces more wind power than any other province in Canada. Whichever racers have the foresight to pack a sail will probably make the best time on the last leg of their journey.

  19. Oklahoma US-75 by FudRucker · · Score: 2, Informative

    those truck drivers drive like hell on US-75 so be careful!!! stay in the right-hand lane whenever possible and the truckers will naturally pass in the left lane (the hammer lane)

    I live 60 miles from McAlester i may just drive to BigMac just to wave from the side of the road, i wish you all lots of good luck...

    --
    Politics is Treachery, Religion is Brainwashing
    1. Re:Oklahoma US-75 by kaizokuace · · Score: 1

      speaking of trucks. Dont they got a lot of space on the trailers to load up on solar cells! Would a trailer covered completely with pv cells be enough juice to run the truck? This could make the shipping system in the country cheaper in the long run?

      --
      Balderdash!
    2. Re:Oklahoma US-75 by Hal-9001 · · Score: 1

      speaking of trucks. Dont they got a lot of space on the trailers to load up on solar cells! Would a trailer covered completely with pv cells be enough juice to run the truck? This could make the shipping system in the country cheaper in the long run?

      Assuming 100% coverage of the top surface of a trailer 102 inches wide and 28.5 feet long, the solar power available would be (2.6 m)*(8.7 m)*(1400 W/m^2) = 31.67 kW = 42.5 horsepower. This is even before considering the fact that the best solar cells are only about 25% efficient, or the cost of the solar cells (which runs into the hundreds of thousands of dollars for solar cars, which are much smaller than a semi trailer), or the size and weight of the battery pack you would want to use to store the solar energy.

      --
      "It take 9 months to bear a child, no matter how many women you assign to the job."
    3. Re:Oklahoma US-75 by objekt · · Score: 1

      The power wouldn't be sufficient to power the truck directly, but could help with charging the battery.

      --
      -- Boycott Shell
    4. Re:Oklahoma US-75 by kaizokuace · · Score: 1

      true, also trucks park a lot! thats time well spent charging it up.

      --
      Balderdash!
  20. hey, my donated latches are on the OSU car! :) by deft · · Score: 2, Interesting

    Wow, it was quite a long time ago, but latches I sell, normally used on carbon fiber race hoods I manufacture were donated to the OSU team to latch the top and bottom halves of the car together.

    If you are curious, it's these:
    http://deftracing.com/aerocatch_hood_pins/index.htm

    I just got a msg on the 26th that they were heading for their first race, but forgot to follow up on it... I see it's on it's way... but they may have had battery problems :(

    here's the OSU blog with up to date info:
    http://oregonstate.edu/groups/solar/

    --

    There's nothing Intelligent about Intelligent Design.
    1. Re:hey, my donated latches are on the OSU car! :) by grimsnaggle · · Score: 1

      Wow! I saw those while I was out at the race and I swore I would track them down on the web to try and use on our team's solar car. I'm totally bowled over that I should chance over them on slashdot of all places. You wouldn't happen to want to donate a few of those to the Stanford team too, would you?

  21. Re:Michigan didn't win the 2007 World Solar Challe by Hal-9001 · · Score: 3, Insightful

    Ugh...out of the 3 submissions regarding the NASC, the least-accurate and least-timely one is the one that gets promoted to the front page. Sasha Zbrozek, the team lead for Stanford's next solar car, submitted a much better write-up a few days ago when the NASC started.

    --
    "It take 9 months to bear a child, no matter how many women you assign to the job."
  22. The Real Story by xavi62028 · · Score: 1

    Whats crazy is that the 2nd place team as of this writing is Principia College, a school of only 500 students and no engineering dept or major. If they pull out a win it could go down as one of the biggest upsets in college sports(?) history. Of course they would need to beat a team that has millions in funding and its own satellite for weather data and a team of meteorologists.

    1. Re:The Real Story by Anonymous Coward · · Score: 0

      Whats crazy is that the 2nd place team as of this writing is Principia College, a school of only 500 students and no engineering dept or major. If they pull out a win it could go down as one of the biggest upsets in college sports(?) history.

      Of course they would need to beat a team that has millions in funding and its own satellite for weather data and a team of meteorologists.

      Actually they use the satellite to control the weather, along with the UAVs for monitoring other teams and the frickin laser on the moon for knocking out inaccurate Slashdot stories.

    2. Re:The Real Story by gbdub · · Score: 1

      This is clearly rubbish, everyone knows it's impossible to control the weather. The satellite dish simply surrounds the solar car in a subspace bubble connecting to a parallel universe where it's always sunny.

      Interestingly, in the parallel universe, Michigan is actually an underdog team of ragtag remedial school ethnic stereotypes led by teacher/team mom Halle Berry and a grumpy but lovable Jim Belushi. This is actually better than it sounds, because in the parallel universe, Jim inexplicably ended up being the funny brother.

  23. Michelin pulls their tires??? by GarrettZilla · · Score: 1

    I heard from an MIT friend this past weekend that they had to drop out because Michelin yanked support for using their tires at the last minute, and that was going to knock a few other schools out of the race as well.

    --
    Ecce potestas casei!
    1. Re:Michelin pulls their tires??? by cbc1920 · · Score: 1

      For some reason, Michigan is still able to race on Michelin tires. The MIT team has, as far as I know, pulled out of solar racing completely.

    2. Re:Michelin pulls their tires??? by gbdub · · Score: 1

      From what I heard from the team, the race officials were willing to allow Michelins if independent testing confirmed their safety. Michigan was able to arrange this testing, and was thus allowed to use the tires. Apparently Michigan's approval extends to the other teams as well, but many did not bring any because the testing could not be completed until the last minute. Michigan was giving away some lightly used Michelins to keep Durham running.

  24. Re:Michigan didn't win the 2007 World Solar Challe by PopeRatzo · · Score: 4, Interesting

    When I'm not at home in Chicago, I'm at my place in Rolla, MO, where I've seen the talented youngsters from Missouri U of Sci & Tech working on their solar vehicle. It's been nearly a decade since I first saw their sun car, and maybe, finally, this country of 300 million hunks of iron junk on wheels is ready to think about other ways of getting to Wal-mart to do their shopping besides relying on fossil fuels.

    What do you think, has $4.59/gal gasoline changed any minds yet? My family has downsized to a '95 Mazda that spends most of the time in the garage, but then we live in downtown Chicago where you can walk a few blocks from any point in town and pick up a bus or train in about 5 minutes. Or, and this is what we've chosen, we can hop on our bikes and give the big fungoo to the oil companies (at least when it comes to transportation). Living just blocks from campus or working from home makes it a lot easier, but I'm thinking there are other people making similar decisions to ours. One thing I've learned is that I'm not all that exceptional, so if I can get by without visiting a gas pump every week there are other people doing the same.

    Getting back to the solar car race, I just hope the media makes the story more than just an end-of-the-newscast cute item. We need to learn there's other ways to do things, and it feels so good when I cruise by the gas stations on my bike. I like to see the sad faces of the doofuses in their '07 Escalades or Tundras or whatever they're calling those stupid locomotives-on-rubber these days, as they watch the numbers fly by on the gas pumps. Fuck 'em for being stupid, I say. Plus, it makes them a little less cocky and agressive when it comes to sharing the street with my infinite-miles-per-gallon velocipede. Maybe at some point I'll start to have a little human sympathy and understanding for them. But not yet, not yet.

    --
    You are welcome on my lawn.
  25. no CMU? by cashman73 · · Score: 1

    Where the hell is Carnegie-Mellon? How can you even think about having a car race like this without inviting them?!?! Or maybe they didn't invite them because they wanted the other teams to actually have a chance? ;-)

    1. Re:no CMU? by Hal-9001 · · Score: 1

      I think you're somehow confusing the North American Solar Challenge (which Carnegie Mellon has never entered, to my knowledge) with the DARPA Grand Challenges, where Carnegie Mellon has usually been the favorite and has traditionally done quite well (an upset by Stanford in 2005 notwithstanding). They are very different races requiring different expertise, although it would be interesting to apply machine learning techniques to solar racing strategy.

      --
      "It take 9 months to bear a child, no matter how many women you assign to the job."
  26. wind by zogger · · Score: 3, Interesting

    That would actually be interesting if they ever encountered tail winds and could adjust the angle of one of the panels to act as a sail, or even the canopy. Would be a nice "sleeper" bit of tech to surprise the opposition.

    1. Re:wind by Yvan256 · · Score: 1

      And the pilot will be called Bond... James Bond.

  27. Race info by fnazeeri · · Score: 1

    Lots of real-time info available on the solar car race here: http://friendfeed.com/rooms/nasc-2008

  28. UMich didn't even make the start in 1995 by oneiros27 · · Score: 1

    I don't know what they're using as criteria for 'entered', but the one race I was in, they had a wheel failure in qualifying, and didn't even make the starting line.

    Of course, whoever's dumb idea it was to finish in Golden, CO should've been shot -- uphill climb, after 2 days of cloudy weather ... with parts of the race route on the Denver beltway ... we were told to collect the cars w/ trailers, as there was too much rubber necking as rush-hour started.

    (of course, they also thought it was a good idea to give us an 'alternate route' for the trailers and support vehicles that on one day, included a ferry. And on another day, was more than 2x the race route, passing through 2 states the race didn't.)

    --
    Build it, and they will come^Hplain.
    1. Re:UMich didn't even make the start in 1995 by Gertlex · · Score: 1

      2005, not 1995... UM won the Sunrayce in 91 and 93, iirc. 95 and 03 were our problem cars.

  29. Re:Michigan didn't win the 2007 World Solar Challe by cbc1920 · · Score: 4, Interesting

    Michigan was poised to win the 2007 World Solar Challenge until they crashed into their lead support vehicle. Their lead had to break hard after being cut off by STANFORD's support vehicle, which was panicking after they lost their solar car in the heavy Darwin (Australia) traffic. Next time your team enters an international event, please practice driving your race caravan in traffic.

    Congratulations on winning the 2005 stock race on a car largely based on Michigan's (embarrassing) 2003 car- one of your lead mechanical designers was a UM veteran.

    Sorry about the flame- I am an ex-UM member and am still a little bitter.

  30. an interesting point of the rules... by notgm · · Score: 3, Interesting

    i'm find it fascinating that the rules state that the cars are only allowed to run on global thermal energy - which includes wind, EXCEPT for any power stored in the batteries at the beginning of day one.

    if i read this correctly, the team with the most efficient batteries (and/or greatest battery capacity) has a tremendous advantage.

    an even more interesting race would start with all cars at a zero-charge, i think.

    1. Re:an interesting point of the rules... by aXi · · Score: 1

      How right you are, one full day's solar power should be enough to fully charge any discharged battery.

    2. Re:an interesting point of the rules... by x1n933k · · Score: 1

      I don't know much about these cars however I do know about my iPod. If they started at zero charge wouldn't that mean they would sit on the road for 24 hours charging before wanting to move, else they wouldn't get the most life from their batteries, no?

      I guess it depends on what you feel is interesting, some people like golf, others like Windsurfing.

      [J]

    3. Re:an interesting point of the rules... by Gertlex · · Score: 1

      Battery capacity is limited... so indeed efficiency of electrical systems is something to strive for.

      Efficiency of the solar cells, however, is not limited. The more money, the better you can get.

    4. Re:an interesting point of the rules... by lawnbird · · Score: 1

      it would make for a very boring start.

      the rules limit the weight of the battery pack and that is sorted by type. ie. you can have a heavier Pb-Acid pack than Li-poly.

      pretty much every team runs with aprox. the same pack capacity. The pack capacity is more important for the morning/evening charging: the teams can't be on the road before/after certain times so teams charge during those times.

  31. Inconsistancies. by aXi · · Score: 1

    The last 4 true world challenges where won by a dutch team.The University of Michigan's Continuum car is not the current winner of the Australian championship. Please amend to quote.

  32. Re:Michigan didn't win the 2007 World Solar Challe by Anonymous Coward · · Score: 0

    But your team isn't in this race...

    Oh right, you flipped your car. My condolences. /evil

  33. Using only the sun for fuel... by StarkRG · · Score: 1

    using only the sun for fuel.

    Um, besides the Sun our only other fuel sources are nuclear and geothermal, both of which, for the most part, come from the star (or stars) that preceded the Sun.

    In case you're wanting to argue with me that gasoline, coal, natural gas, etc. are also other fuel sources: Fossil fuels come from plants who got their energy from the sun. Wind and water power are also powered by the Sun.

    </thinking with the anal retentive geek>

    1. Re:Using only the sun for fuel... by Renegade+Lisp · · Score: 1

      Fossil fuels come from plants who got their energy from the sun. Wind and water power are also powered by the Sun.

      Right on the spot. We need to understand that solar energy is not some kind of exotic energy for funny cars. It is pretty much the only energy we have, compared to which all other forms of energy (nuclear, geothermal) pale into insignificance.

      Using fossil fuels is actually a fairly inefficient form of using solar energy. It took millions of years to collect that energy and transform it into the fossil fuels as which it is now stored. Compare that to a few hours for recharging a battery from PV cells :-)

      My favourite number in this context: The energy stored in all the fossil fuel in the earth's crust equals about 20 days of sunshine. Can't find the quote for that right now, but the numbers in the first few paragraphs here are pretty much in that ballpark.

  34. See it as you wish. by grimsnaggle · · Score: 4, Interesting

    Sorry about the flame- I am an ex-UM member and am still a little bitter.

    I can see that.

    Solar car is about building experience and becoming better at what you do. You can't fault a guy for learning from his mistakes and doing things better the second time around. What is an education for?

    UM has lost focus of the spirit of the event. This is a race, but it's not a race to a finish line. It's a race to learn as much as you can in the limited time you have as an undergraduate in a club activity.

    Michigan wants so badly to win that they realize needlessly risky designs to pursue fleetingly small perceived advantages. Gaming the race framework and then blaming the outcome of borderline engineering on others is bad form and is representative of the poor sportsmanship that has given the team such a bad reputation in the solar car racing community.

    Now, that is not to say that everyone on the UM team is a bad person. There are many fine engineers and upstanding people on the UM team, but their good work, high spirits, passion for the sport, and good conduct are easily eclipsed by the few members of the UM team that don't hold those values as highly.

    I would like to point out that the race officials concluded that Stanford had no culpability in Michigan's accident. Observers from both teams provided the details to reach that final decision.

    Maybe next time UM shouldn't use brakes designed for a bicycle on a solar car.

    1. Re:See it as you wish. by Hal-9001 · · Score: 1

      UM has lost focus of the spirit of the event. This is a race, but it's not a race to a finish line. It's a race to learn as much as you can in the limited time you have as an undergraduate in a club activity.

      Michigan wants so badly to win that they realize needlessly risky designs to pursue fleetingly small perceived advantages. Gaming the race framework and then blaming the outcome of borderline engineering on others is bad form and is representative of the poor sportsmanship that has given the team such a bad reputation in the solar car racing community.

      On the flip side, there is a lot of pressure on any given Michigan solar car team to win the (N)ASC because of the team's reputation and tradition of winning, so they have to pursue winning designs over innovative designs. (Michigan tried an ambitious two-passenger, four-wheel-steering design in 2003, and it is quite telling that some consider that car to be an embarrassment.) Add to that the pressure of trying to catch the Dutch Nuon team which, as I understand it, has even more technological and logistical support than Michigan. My $0.02.

      --
      "It take 9 months to bear a child, no matter how many women you assign to the job."
    2. Re:See it as you wish. by gbdub · · Score: 3, Informative

      Thanks Hal, that's about right (though to be fair, Michigan probably has more logistical support than Nuon these days, although Nuon still had the advantage of a huge cash sponsorship early in the project that allowed them to snap up the world's best solar cells before Michigan had any cash for a down payment - the teams would have likely been well matched without Michigan's accident).

      Regarding the crash, Stanford was indeed ruled not legally culpable - but whether they were at *fault* or not, their support cars' panic brake in congested traffic certainly helped *cause* the accident. I think it was an unfortunate accident and Stanford did nothing malicious, but legal fault and cause are two different things - and the distinction is understandably blurry for someone who has to look at two years of their work smashed up on the side of the road. Driving in city traffic(solar races are on open roads) is a dangerous balance for solar car teams - drive close to your lead and chase cars, and you're protected from other drivers but you might collide with your own vehicles if they are forced to stop fast. But you can't really leave a truly "safe" stopping distance, because you end up with aggressive drivers cutting between your lead car and your solar car, an extremely dangerous situation. Of course this happens to everyday drivers as well - try maintaining the recommended safe interval between you and the car in front of you in rush hour traffic, and think about how often you avoiding an accident relies on the person in front of you being conscious enough to not slam on their brakes.

      Regarding solar car brakes, Michigan does indeed use heavy duty downhill mountain bike disk brakes (which many if not most teams use). Why don't we use something more powerful? Because the brakes we have are plenty strong enough to immediately lock the wheels at speed - that is, our brakes supply more stopping power than our tires (low rolling resistance tires that are the same or equivalent to what every team uses) can apply to the road, so anything more powerful is just dead weight (which would ironically make us stop slower).

      At any rate, any fault for the accident probably lies with the race officials, who violated their own safety rules by allowing the Stanford solar car to start the race without its support vehicles due to a huge snafu in the support vehicle staging area. This is a hugely dangerous situation, and there is supposed to be a system in place to prevent and correct this, but the rules were not followed. Had they been, Stanford wouldn't have had to come to a screeching near halt in morning traffic directly in front of the Michigan caravan while they were trying to rendezvous with their solar car.

      Michigan's Continuum (despite its bad luck streak) is one of the safest solar cars in the competition, and rolled to the start line in Australia with literally thousands of miles of open road testing. Anyone who thinks otherwise might want to ask WSC second place finisher Umicore, who had a wickedly fast car but a wobbly steering system that barely kept them on the road. Or Twente, who also had a great car but suffered continual suspension failures. Or Stanford, who actually flipped their car a day or two after the Michigan incident (I think that one was due to a blown tire which led to a road departure followed by a suspension collapse). Or Aurora, whose 2005 car burned to a crisp due to a battery fire. Of course, the worst offender, although they've thankfully not had an accident, may well be 4 time WSC winner Nuon, who in 2005 had a driver's canopy so tiny that their driver had only a vestigial roll bar and could not even wear a helmet. Had they suffered Stanford's crash (which the Stanford driver walked away from, thank God), their driver would be dead. That, my friends, is sacrificing safety for speed.

      As for Michigan's sportsmanship, apparently innovation gets called "gaming the race framework". Continuum had a solar concentration system on their car was one of only two successful implementations of s

    3. Re:See it as you wish. by cbc1920 · · Score: 2, Interesting

      U of M had by far the most innovative car in WSC. Yes, they spent the $$ to get a good array, but only 1/4 as much as the winners from the Netherlands. The UM solar concentrator system was, IMO the biggest new thing to solar car racing since MIT's '95 "short car" aero design. And I'm not counting industry improvements like solar cells or batteries.

      If you want to harp on teams that spend money and don't improve much, just look at the top 5 teams in that race- similar cars with fancy arrays.

      This, for those of you that care (probably no one) was a system of 12 mirrors mounted in the rear of the car that focused the sunlight about 20x on small, ~1cm wide strips of ultra-efficient concentrator cells. Everything in that design had to be designed and built by the team, from the system to rotate the mirrors to track the sun within 2 degrees, to re-engineering the mounting and encapsulation of the specialized solar cells.

      All told, they were able to get several hundred watts out of about 0.1 m^2 of solar cells, something unheard of on a MOVING vehicle, let alone a system that weighed under 50lbs and was packaged within a very aerodynamic shape. They even developed a new method of body construction in order to shape an upper surface that had a giant hole in the middle, yet was still stiff enough to survive the road. If UM had won, it may have even become the standard way for future solar cars to build their arrays.

      Yes, the design was risky, but the advantage was huge, a 20% gain in power, and recall that 1 other team tried concentrating sunlight (not very successfully) and it was approved by the WSC rules committee a year in advance.

    4. Re:See it as you wish. by grimsnaggle · · Score: 1

      I made no complaints about the concentrator, nor about Michigan's huge budget. The UM team works hard to secure the funding that they do, and I can respect that.

      Go read the solar vehicle challenge list. I even posted an RFC for rules changes that would specifically allow Michigan's concentrator. It's a design feature I admire and I think it's wrong that you were not allowed to use it to its full capacity in NASC.

      You've missed the point of my post entirely. You have interpreted my post from a competitive advantage perspective, not a sportsman's perspective. When I say risky, I don't mean from a potential performance benefit versus cost and risk calculation. I mean risky as in the driver's safety is compromised in order to shave a few pounds or make the aero profile a tiny bit better.

      Michigan is a great team that does great things, but sometimes the focus on winning blurs out the purpose of the event and reorders the priority list in a dangerous way. Nuna is much the same way. Their car is a rickety death trap that I would never drive.

    5. Re:See it as you wish. by gbdub · · Score: 1

      Where exactly has Michigan compromised safety for performance? More importantly, where have they done so in a way that 99% of other teams do not? What I mean by this last bit is that these things are inherently less safe than a passenger car - a truly safe solar car would be a Mercedes with solar cells duct taped on top, but that would make for a pretty lame competition. A 600 pound carbon fiber solar car will never be safe against a head on with a Hummer. Michigan makes up for this by designing in crush zones, titanium roll cages, and multi point harnesses, and driving in a caravan with thousands of miles of practice until it's second nature. I already answered your remark about the brakes. At any rate, Michigan's driver fared a heck of a lot better than a motorcycle rider would have in a similar crash as the 2007 incident.

      And really all the bashes against Michigan's misplaced priorities and bad sportsmanship are pretty low. Until you can point out some actual evidence of Michigan's reckless engineering, I'm forced to conclude that you're merely out to flame a group of people dedicated to their sport who I'm assuming must have beaten your preferred squad or run over your dog or something.

    6. Re:See it as you wish. by cbc1920 · · Score: 1

      I definitely agree that UM gets a little too competitive. I have tried to rein in their secrecy in the interests of the sport, but it's part of the culture. I think that they would have had a much better shot at using their concentrators in NASC had they disclosed them about 6 months earlier. Their secrecy in this case hurt them a lot, and deprived them of a lot of hype and publicity, which is really what all of this is about- spreading the word on vehicle efficiency.

      A great story of this year's NASC is Minnesota's tracker problems- an integral part of their car stopped working the night before the race. They were able to get replacement hardware from Principia (2nd place team), firmware from another team, and a help reprogramming the firmware from Michigan.

      Speakin about safety, I have personally looked at every aspect of Michigan's mechanical design for their last 2 cars, and I can honestly say that they have one of the safest cars in WSC and one of the safest in NASC. Their current car has brakes on all 3 wheels (a rarity in solar cars), a full steel roll cage, a very strong aluminum/steel suspension, and a composite chassis that has been heavily analyzed for crash worthiness. While its acceleration is lacking, its handling is similar to a sports sedan and has been tested for hundreds of miles at an automotive proving ground.

      Every one of their designs is reviewed by a committee of past team members, industry engineers, and professors. Anything that they deem is not safe gets redesigned before they are even allowed to begin construction.

      As for sporting talk, IMO solar car racing in the USA is in danger of dying out because teams are more focused on their own rules and fairness and less concerned with publicity, which comes from competition and cool engineering. In order to keep going, we need to have the top teams help bring the rest of the pack up to their level.

    7. Re:See it as you wish. by grimsnaggle · · Score: 1

      That's absolutely the truth. Solar car racing is way cooler than the American public gives it credit for. It's a real shame that there's not more publicity and more opportunity for some of us slightly less well endowed (in terms of manpower) teams to interface with industry and really do great things.

      I'm glad to hear that so much testing goes in to making sure the UM cars are safe. Certainly at first glance a lot of things seem bad. The driver position still sticks out at me as something that shouldn't be repeated. Also, analysis of composites is hard and usually the answer is to just over build them. That's certainly what we do. The only analysis we do is to find the cross sectional area of the fiber in the direction of the load and treat it as a metal surface with the tensile strength of carbon fiber.

      I've heard some fleeting reports that MN has had battery problems and may have to duck out. Do you happen to have any more details on this? I think MN is a great case study in solar car sportsmanship. I went to the NASC scrutineering and qualifying mostly just to chat it up with teams, learn what I could, and see what the race was about. While there they volunteered parts and help to other teams. Depending on who you got with UM, sometimes you'd get great conversation and plenty of advice and help. Sometimes you'd get someone who really just wanted you to go away. My impression is that the team has been getting better with time.

      I've been trying to keep pretty open about what it is we've been up to. I post complete PCB drawings of our electricals, pictures of our batteries, CADs of our mechanicals, etc. My thought has been it's better to improve the state of the art than to try to be secretive about things. I'm even planning on open sourcing the software and hardware to my homemade MPPTs as soon as it's ready for showtime.

    8. Re:See it as you wish. by gbdub · · Score: 1

      I guess I'm still not sure what about Michigan looks bad at first glance, especially compared to other teams. You're correct that composite analysis is difficult, which is why Michigan worked with their sponsors to learn tools and methods that allow them to optimize the carbon layup schedule and bulkhead layout with a high degree of confidence. The same is true of all of the mechanical components. Michigan can design to a lower safety margin because their uncertainties are made much lower by the analysis and testing. This makes their car safer, but faster at the same time. Also helping this is the high degree of parts quality due to Michigan's access to sponsors with extremely good CNC machining capabilities.

      I'm sorry to hear that you felt brushed off by some of the Michigan team, but keep in mind that scrutineering is extremely serious and ridiculously stressful - it's part of the competition, not a PR event. In Australia we usually tried to designate a couple people to talk to visitors (and keep them from touching/leaning way over/sitting on fragile bits), but this isn't always possible. When you're worried about your car (and 2 years of your life) not qualifying, you're not going to be terribly focused on answering a stranger's questions about your car. Even when you're not working, you're probably exhausted as hell. These aren't celebrities used to the spot light, they're tired, dirty, stressed-out college students doing one of the most difficult things in their life. You would probably get a similar result from Minnesota if you asked technical questions about their solar array while they were concentrating on fixing their power trackers and getting moving again. Even the best can have stress and emotion get to them - some members of the Minnesota team, who you commend justifiably for their sportsmanship, said some downright nasty things about the Michigan team in their local paper after the '05 race. I hope you can be understanding, just as you would be if Tiger Woods was a little brusque with you if asked him for swing tips while he was on the practice tee before the Masters.

      Also, the need for secrecy comes from the desire of the top teams to get as much technical info about their competitors as possible, which they will then use to improve their strategy and gain a competitive edge. Little things like this can make or break a close race. There was a constant stream of competitors asking extremely probing questions about the car in Australia. On at least one occasion there was even one competitor intentionally distracting a Michigan team member so that their other teammate could get close up photos of parts of technical parts of the car we'd explicitly requested them not to photograph. On another occasion we actually had students from MIT trying to pry tech details from team members at the North American International Auto Show in Detroit. These sorts of things make you a little antsy, and its tough to strike a balance between helping out the little guy and not giving away your competitive edge.

      I'm sure the Michigan team will be a lot happier to speak with you after the race and the stress are over. We'll be happy to talk about Continuum once its safely retired and no one is out to get it ;)

    9. Re:See it as you wish. by ishmaelflood · · Score: 1

      Mm. I think what amuses us is that Michigan's revolting arrogance has had so little result in the WSC. I think you did manage to beat us once, 18 years ago.

      Shame really, most of the kids on the Michigan team seem OK, individually, but en masse, pass the sick bag, Alice.

      When driving in traffic it is up to the following car to maintain a safe distance from the car in front.

    10. Re:See it as you wish. by gbdub · · Score: 1

      Wow, you definitely demonstrated how much classier and less arrogant you are then Michigan.

      Based on your discussion of the results, I'm assuming you're from Aurora.

      Michigan catches a lot of hell for a) having a lot of sponsors and b) not letting people in our garage at the track and c) wanting to win. Strangely, Nuon, for whom all 3 things are true (they show up for an afternoon to run about 3 practice laps then leave rather than staying with the other teams, to prevent teams from seeing their car more than necessary), never gets bashed. And I can't blame them really, it's ridiculously hectic at the track and having lots of strangers in and out of your garage risks damage to your ridiculously expensive vehicle you spent two years to build, and also distracts you from making sure your car is safe and ready to roll. It's not a product of arrogance or meanness, just concern to maintain a tight ship and avoid unfortunate accidents.

      We get all our stuff by working our butts off with sponsors and having a well organized business team - it's not like money fairies come along and drop dollar bills from the sky because we're special or something. Apparently "working hard, being successful, and being proud of it" = arrogance. And that big trailer with a machine shop Michigan gets called arrogant for having has helped other teams get back on the road a lot more often than it's been needed for the Michigan car. Whatever, I guess teams in every sport just need someone to hate.

      You're right that it's up to the car behind to maintain a safe distance, which is why Stanford cannot be legally faulted. But I challenge you to prove that you always maintain a completely safe stopping distance, all the time, either in your solar car or in your personal vehicle. Bad things happen outside of your control sometimes. The fact is that a lot of accidents are avoided by luck, even if all the rules are followed to the letter. We tried to maintain a greater distance in the race but had to pull tighter in traffic to avoid gawkers and agressive drivers trying to weave in and out of our caravan, which seemed a lot more dangerous at the time (we rear ended our lead once, but suffered at least a dozen very, very near misses when drivers cut in without leaving enough room between their rear bumper and the front of the solar car, or when they would cut in, reducing our safe stopping distance, and then unexpectedly slow down). It's hardly as simple as you try to make it sound. The accident was the result of a series of unfortunate circumstances and mistakes by both teams involved. If Michigan had more separation, maybe they would have been fine, and maybe they would have ended up rear-ending a civilian who thought that big cushy spot between our cars looked too tempting, safe stopping distance be damned. Who can really know? Of course, none of that excuses the race officials from blatantly failing to follow their own safety rules due to a poorly organized event start that endangered the lives of the competitors.

      The WSC could seriously learn a lot from the NASC in terms of safely and effectively organizing an event. Rules are well defined before hand (not made up during the race, a la the 2007 WSC stage stop), starts are well organized to run smoothly, safety requirements on all parts of the vehicle are stricter, and regulations are enforced by the book (e.g. egress in x seconds MEANS egress in x seconds). And I say that in good faith - such organization would really improve the safety and fairness of the sport. Unfortunately, speaking of arrogance, the WSC seems to like to pretend that NASC doesn't exist, and how dare those bloody Yanks think they can suggest anything to us.

    11. Re:See it as you wish. by ishmaelflood · · Score: 1

      Can't prove a negative but zero accidents in 25 years of driving, including a lot of high speed work.

  35. Iowa State coverage of their team... by Anonymous Coward · · Score: 0
  36. Yet you didn't question why it said "Canada" by objekt · · Score: 1

    Because of course nobody knows where Calgary, Alberta is ;-)

    --
    -- Boycott Shell
    1. Re:Yet you didn't question why it said "Canada" by Hasmanean · · Score: 1

      In my frame of reference, Calgary is at the center of my coordinate system. In fact, the finish line for the race is right outside my office window. In fact, I can see it right now, in fact I just saw the first car (Michigan U) come in right now.

      Coordinates are all relative, remember.

      --
      Hasan
  37. Irony by DarthVain · · Score: 1

    I thought both the start and the destination was somewhat ironic for this type (solar) race. It wasn't mentioned in the article why these two places were chosen, perhaps because they get a lot of sun.

    However when I think of Texas I think big oil, and when I think of Alberta I also think of big oil. They are probably two of the largest producers of oil (land based) in North America. Perhaps this figured into the decision as to the selection of the cities. Anyway I hope the irony was not lost on them.

  38. Re:Michigan didn't win the 2007 World Solar Challe by outerphase · · Score: 0

    Woot! Go Rolla!

    --
    mmmmmm....orchestrated insanity
  39. Iowa State's coverage... by Anonymous Coward · · Score: 0
  40. Sole power source by halcyon1234 · · Score: 1

    Solar power-- and presumably, gravity. Unless they've found a way to cancel that out, to make the competition more fair. In which case, keep your silly solar powered car. I want a gravity canceller.

  41. Re:Michigan didn't win the 2007 World Solar Challe by Anonymous Coward · · Score: 0

    After using public transportation and bicycle for 8.5 years, 6 months ago my back problems and a few severely cold days convinced me to into buying the smallest used SUV that I could afford (found this most comfortable to drive among all the cars I tried). It gives me 21 MPG in my pothole-ridden ever-under-construction traffic-choking city called Cambridge. Even so, I drive relatively less, but the gas prices are pinching me.

    The only thing I wish for is this: Instead of aiming for perfection in terms of gas usage (MPG) why doesn't the industry make solar-gasoline hybrid cars?

  42. Why not some solar-gasoline hybrids? by heteromonomer · · Score: 1

    They can put as many rechargeables as in a Prius. The solar-gas hybrids could charge then their batteries while parked out in the sun. Hell, could even supplement even a bit of power (however little) into the AC.

    1. Re:Why not some solar-gasoline hybrids? by heteromonomer · · Score: 1

      Ok.. Answering my own post. Found this: http://www.treehugger.com/files/2007/05/solar_hybrid_ca.php It's time the industry starts making this as a serious option.

  43. Re:Michigan didn't win the 2007 World Solar Challe by SeattleGameboy · · Score: 1

    Don't be so bitter. We can't win them all. I consider building the body of the Maize & Blue (winner of '93 race) and doing the wind tunnel testing the highlight of my engineering days at Michigan. And I am ecstatic that Michigan has kept up with the early solar car race successes. Go BLUE!!!

  44. Re:Why not? The sun's great up here. by umStefa · · Score: 1

    I'm not sure the rules in a solar race allow for wind sails, but even if they did the weight penalty of carry the sail all the way from Texas combined with the fact that the prevailing winds across the Canadian praries from Winnipeg to Calary are westerly, and the the cars are going the wrong way.

    --
    Technology is most abused by the very people it was created to help
  45. Re:Why not? The sun's great up here. by Craig+Davison · · Score: 1

    Actually I remember a graph from the race last year (or the year before?) showing that the speed in Alberta was about half what it was in Arizona. Southern alberta might have more hours of sunlight because of the latitude, but the sun is at more of an angle, so the light is dimmer.

  46. Re:Michigan didn't win the 2007 World Solar Challe by fnazeeri · · Score: 1

    Hey Seattle, this is Furqan! It's funny that 18 years after we started raycing, Michigan is still getting a bum rap...

  47. Re:Michigan didn't win the 2007 World Solar Challe by ishmaelflood · · Score: 1

    Because the addition of affordable quantities of solar power to a conventional car would make virtually no difference to the running cost. Even if you used say 3 square yards of the best cells available you would be lucky to get 2 kWh per day, roughly equivalent to half a gallon of fuel. But, that array would cost you about $300000. If you send me $300000 I will send you $2 every day in return.

  48. Re:Michigan didn't win the 2007 World Solar Challe by SeattleGameboy · · Score: 1

    No shit! What Up? This is Choi. How the hell are you? Too bad I can't send a private email...

  49. Re:Michigan didn't win the 2007 World Solar Challe by Anonymous Coward · · Score: 0

    yeah, the dutch team sponsored by the ESA.. I thought these were strictly college projects, not sponsored by anyone, that is totally unfair.. Stay out of it if you need backers like the ESA you cheaters!!

  50. Re:Michigan didn't win the 2007 World Solar Challe by Anonymous Coward · · Score: 0

    To be fair, all solar racing teams are sponsored in one way or another--that's the only way that university students can obtain the resources needed to attempt projects of this magnitude. But you are right that Nuon's ESA sponsorship is an unfair advantage--just as an example, for an American team to be able to compete with them, they would need access to military-grade solar technology.