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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."

38 of 144 comments (clear)

  1. 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 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.
  2. 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.

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

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

    1. 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/

    2. 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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    3. 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.
    4. 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.
    5. 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.

    6. 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.

      --
      WWJD.... for a Klondike bar?
    7. Re:Canada? by Eoika · · Score: 2, Funny

      So they're rolling for initiative?

  4. 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"
  5. 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...

  6. 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.
  7. 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!
  8. 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 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.
    2. 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.

    3. 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."
    4. 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.

    5. 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.
    6. 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
  9. WMU! by smidget2k4 · · Score: 2, Funny

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

    Go someone else!

  10. 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!
  11. 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 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."
  12. 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.

  13. 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
  14. 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.
  15. 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."
  16. 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.
  17. 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.

  18. 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.

  19. 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.

  20. 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 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

    2. 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.