Slashdot Mirror


Software Glitches Stall Toyota Prius

t35t0r writes "CNN/Money/Tech reports that 2004 and early 2005 Toyota Prius models have software bugs that cause them to stall while traveling at highway speeds. While no accidents were reported to have been caused by the software glitch, could we be heading into an era where our automobiles will require software updates and fixes to keep them from literally 'crashing'?"

94 of 560 comments (clear)

  1. Shouldn't have stolen that code... by Anonymous Coward · · Score: 5, Funny

    ...from Ford.

    1. Re:Shouldn't have stolen that code... by Blkdeath · · Score: 3, Informative
      ...from Ford.

      Actually in this case Ford is paying Toyota royalties to use their Synergy Drive System (the gas/electric hybrid technology at the core of the Escape Hybrid)

      --
      BD Phone Home!

      Shameless plug. Like you weren't expecting it.

    2. Re:Shouldn't have stolen that code... by Blkdeath · · Score: 4, Informative
      From what I've heard, Ford's bug is opposite. My ex had an explorer and one day the pedal slammed itself to the floor and she couldn't stop the car with all of her weight on the brake and had to ram it into someone to get it to stop.

      That's not "Ford's" problem so much as any number of cars that have experienced accelerator sticks.

      BTW - if you're still on speaking terms with your ex, you should let her know that if that happens in the future she should have

      1. Shifted into neutral (which, as a safety feature, has no 'lock' so you don't have to press the button - just push the shifter)
      2. Turned off the ignition
      3. Aimed for a passage of empty space, rather than a potential casualty
      --
      BD Phone Home!

      Shameless plug. Like you weren't expecting it.

    3. Re:Shouldn't have stolen that code... by Anonymous+Luddite · · Score: 4, Funny

      >> Shifted into neutral

      I've actually had this happen once with an older Ford - Punched it around a corner and the throttle stuck wide open with a new SUV parked crossways 40 feet away. Didn't touch Nuetral. Went from drive to 1st, 1st to park and stopped about 3 feet from the truck. The kid standing beside it nearly died of fright.

      I expect doing this with any car made in the last 20 years would leave your transmission in little itty bits...

    4. Re:Shouldn't have stolen that code... by khrtt · · Score: 5, Funny

      The throttle on my old '91 Golf stuck a few times a week for a month or two, until I got my around to fixing it. My foolproof recovery sequence was - clutch, neutral, ignition off (engine stops), ignition back on (to prevent the steering from locking up, flashers, pull over (if have enough speed/space), stop. Pop open hood, get out of the car, kick crap out of throttle assembly while swearing loudly (which caused the throttle to unstick). Get in, continue driving.

      I've done it some 20 times at least, and never got even so much scared, except for one time when the stupid throttle got stuck just as I was racing an 18-wheeler after flipping a birdie at him. Which was, of course, somewhat dangerous even without the throttle problems.

    5. Re:Shouldn't have stolen that code... by HermanAB · · Score: 5, Funny

      More likely, this was a case of 'wrong pedal syndrome' where she had her foot on the accellerator instead of the brake and pressed that to the floor - but damned if she'll ever admit to that...

      --
      Oh well, what the hell...
    6. Re:Shouldn't have stolen that code... by ThosLives · · Score: 5, Informative
      Actually, Ford isn't paying royalties on anything. Ford and Toyota have cross-licensing agreements for various hybrid components and other automotive technologies. Ford developed their hybrid drive independently of Toyota's; the thing is the engineering problem only lends itself to so many economical solutions. (Notably, Ford's design is based more on the Volvo hybrid, but both the Volvo/Ford design and Toyota's use a modified Ravigneaux gearset - that's where the IP conflict arises).

      Mostly these technologies have to do with the transmission and, I believe, some of the control mechanisms and algorithms. But, despite what you have read in most media outlets, Ford is not buying parts or designs from Toyota (at this time).

      --
      "There are a dozen opinions on a matter until you know the truth. Then there is only one." - CS Lewis (paraprhase)
    7. Re:Shouldn't have stolen that code... by Anonymous Coward · · Score: 2, Informative

      There is no way that the engine can overpower the brakes in any modern vehicle if the brakes are working decently. True in a Ford, true in a Viper.

    8. Re:Shouldn't have stolen that code... by cpeterso · · Score: 2, Funny


      I know your wife SAID it was an "accident" when she rammed her Ford Explorer into you, but I've watched enough Court TV to know better. <:)

    9. Re:Shouldn't have stolen that code... by SuprCzr · · Score: 2, Informative

      ever heard of a brake stand?

      (Assuming no traction control or active stability management or some such thing) there are many cars that can overpower the brakes that they're equipped with especially with an automatic. My volvo can... and ive used it to my advantage off road in a toyota 4x4... and i keep my cars well maintained.

      --
      SUPRCZR
    10. Re:Shouldn't have stolen that code... by ptbarnett · · Score: 4, Insightful
      More likely, this was a case of 'wrong pedal syndrome' where she had her foot on the accellerator instead of the brake and pressed that to the floor - but damned if she'll ever admit to that...

      I don't know why so many moderators thought this was funny, but you likely have it exactly right.

      It happened to me once on an icy road when my car started drifting. I thought I had my foot off the accelerator and on the brakes, but didn't realize why the anti-lock system wasn't working and the engine was making so much noise until I was sliding into a ditch. There was no damage and I was able to drive out, but at that moment I knew exactly how people can believe they had their foot on the brake.

      Unfortunately, my mother wasn't so lucky. She got the pedals mixed up while manuvering in the driveway behind the house and ended up parking in the neighbor's bedroom (fortunately, no one was home). When my father ran outside and shut down the ignition, she was dazed from the impact, but her foot was still jammed on the accelerator.

    11. Re:Shouldn't have stolen that code... by HairyCanary · · Score: 3, Insightful

      You're probably right. The simple fact is that on any car (especially ordinary A-to-B type cars), the brakes have much more horsepower than does the engine (and this is assuming the engine is at its peak horsepower RPM). If you can't stop the car with the engine at WOT, then you're not pushing very hard on the brakes or they are faulty.

    12. Re:Shouldn't have stolen that code... by Beryllium+Sphere(tm) · · Score: 3, Informative

      The Prius transmission is fundamentally different in principle from a Ravigneaux gear set. In the Prius, everything is in constant mesh and there's only one torque ratio (single sun gear, single planet set). The brilliance of the Prius drivetrain is that you can get variable power split out of a fixed torque split by using the sun gear speed to vary the speed ratio.

      While there are only a limited number of economical solutions, it's noteworthy that Honda shipped a completely different CVT design for the Civic hybrid.

    13. Re:Shouldn't have stolen that code... by ThosLives · · Score: 2, Informative
      Ah, perhaps my memory failed on the Ravigneaux part (incidentally, it's not "fundamentally different" as a standard planetary gearset is a subset of Ravigneaux gearsets), though I knew it used certain properties of the planetary gear set.

      The funny thing about the "innovation" of controlling the speed of the planets to vary the gear ratio is really borderline on the unobvious clause; if people look at the governing equations for a planetary gear this should be obvious. Unless the patents are wholly on the controls for this rather than the invariant physical dynamics...I might have to go dig those up.

      What's really fun is to keep straight parallel mode versus positive split versus negative split versus series mode on that type of transmission - whoever named those didn't get good grades in "intuitive labelling".

      And, if memory serves, Honda's CVT on the Civic is more their "traditional" CVT.

      --
      "There are a dozen opinions on a matter until you know the truth. Then there is only one." - CS Lewis (paraprhase)
    14. Re:Shouldn't have stolen that code... by Takeel · · Score: 2, Informative

      ...and to further the cause, here is a reputable source outlining what to do when your accelerator sticks.

      You know, I don't even know why I'm bothering to keep adding to this thread. It's not like anyone gives a crap.

  2. Failover by Nos. · · Score: 5, Insightful

    Like planes, and other vehicles, any software problem should failover to a tested, less automated system. If my car stalls on the highway and I lose power steering and/or brakes, there's a big problem. Instead of stalling the engine, it should just shut down and let the engine take over, maybe flashing some warning lights.

    1. Re:Failover by sqlrob · · Score: 3, Insightful

      Can't always do that though.

      IIRC, some of the stealth bombers will fall apart in less than a second if the computers go.

      If the fuel injection is gone because of the computer crash, what do you fail over to?

    2. Re:Failover by Anonymous Coward · · Score: 3, Insightful

      "If my car stalls on the highway and I lose power steering and/or brakes, there's a big problem"

      How is this a big problem? Have you never had a car stall and these things fail on you before? It's no big deal. You push the pedal a little harder and you put a little more effort into steering.

    3. Re:Failover by TopSpin · · Score: 5, Insightful

      ...should failover to a tested, less automated system...

      It did. At least based on the anecdotes posted at edmunds.com by the drivers. The engine shut off, the dashboard lit up like a Christmas tree and the battery continued to power the car. Not surprising that you might conclude total failure from the /. posting and its exceptionally lame, MSM-like allusions to 'crashing'...

      Guess what folks; you are expected to be capable of coping with vehicle problems while traveling at the phenomenal rate of "highway speed". Tires blow, people fuck up, things fly off randomly; deal with it.

      --
      Lurking at the bottom of the gravity well, getting old
    4. Re:Failover by poot_rootbeer · · Score: 2, Interesting

      The problem is that historically, cars have had real mechanical transmissions that were easy to fall back on if the Power Whatever system failed

      Actually, that's not the problem. The problem is that we're now starting to see more and more cars using "drive-by-wire" technologies. The gas pedal is no longer a lever controlling an engine aperture directly; it's a rheostat feeding a variable voltage to a computer, which then decides how to adjust the aperture.

      If that computer gets into an irrecoverable state of badness somehow, you could be SCREWWWWWED.

    5. Re:Failover by LqdSlpStrm · · Score: 2, Informative

      They do that already.

      All modern ECUs have a "limp home" mode activated if they lose one or more sensors. Basically they run a default setting on ignition and fuel injection that allows the engine to continue to operate.

      If your MIL (Malfunction Indication Light) lights up on your dash, you are probably in limp home mode. /MF

    6. Re:Failover by daviddennis · · Score: 2, Informative

      When I was younger and poorer, I ran through a series of ancient Mercedes sedans. (Now I have a newer Mercedes sedan, although 1991 might not be considered exactly brand new, it's a lot newer than what I ran then).

      I would have occasional power steering failures, generally caused by the fluid leaking out of the pump. When this happened, there was no problem controlling the car at speed, but it was an absolute beast to get out of parking spaces.

      So in short, a power steering failure is actually no big deal at speed, only when the car is stopped.

      D

    7. Re:Failover by McDutchie · · Score: 4, Funny
      Not surprising that you might conclude total failure from the /. posting and its exceptionally lame, MSM-like allusions to 'crashing'...

      #include <obYouMustBeNewHere.h>

    8. Re:Failover by Sylver+Dragon · · Score: 3, Informative

      That's actually a pretty common problem on modern military fighters. Most of them have a negative stability. This is the reason the F-16 can manuver so well; however, if the computers on the F-16 were to go out completely, it would tumble out of control. It's much like throwing a dart backwards, it will naturally flip over, it's just worse when thrust is being constantly applied.

      --
      Necessity is the mother of invention.
      Laziness is the father.
    9. Re:Failover by klubar · · Score: 2, Interesting

      Actually (at least on the Prius) it's not a rheostat on the gas pedal... the interface is redundant hall-effect sensors to ensure that it's not getting false readings. Systems can be designed to be redundant...the mechanical linkage could easily jam or break...either which could have catastrophic effects.

    10. Re:Failover by TopSpin · · Score: 4, Funny

      #include <obYouMustBeNewHere.h>

      LOL. Note the user id, Mr. 151611.

      --
      Lurking at the bottom of the gravity well, getting old
    11. Re:Failover by gnugie · · Score: 2, Informative
      Like planes, and other vehicles, any software problem should failover to a tested, less automated system.

      Wow.

      You obviously don't work with these things.

      What less automated system are you assuming to be in place that's actually more reliable than what's out there? There's a reason electronics have taken off. Performance, Reliability, and Cost have all improved immensely with these systems.

      Most electronic systems have good diagnostics, and they DO fall-back to a simpler mode. If your engine controller loses the crank sensor input, it uses a smart default. If the anti-lock brakes lose the wheel speed sensor, they go to a smart default.

      And, if the electronics outright fail, the system usually goes into a "limp-home" mode, where it still works. It won't work the way you want it to, but, hey, who REALLY wants their car running at 70mph when the suspension controller has failed?

      If your power steering goes out, steering still works. If your Anti-Lock brakes go out, they default to normal braking. But, if your master brake cylinder (a mechanical device) fails, you have no brakes at all. Ooops, that less automated system didn't help there, did it?

      If the Engine Controller completely bombs out and stalls on the highway, it stalls. Without the controller to fire the fuel injector, there's no fuel. Carburators went away a LONG time ago.

      The simple fact is this: The electronics are better. The failure modes are tested and evaluated to death, and, believe it or not, the car almost always does the safest thing.

      If you don't believe me, take a look at any of the major lawsuits against these car companies, and look at the TONS of paper they produce that does nothing but cover diagnostics and failure modes. It'll astound you.

      --
      Don't know; Don't care; Don't ask
  3. But officer..... by ad0le · · Score: 5, Funny

    I was only trying to install the latest windshield wiper drivers....

    --
    My mother never saw the irony in calling me a son-of-a-bitch.
  4. There will be no crashing by Timesprout · · Score: 3, Funny

    for my flying car. There will be a plumet, followed by a very sudden stop at the end.

    --
    Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
    What truth?
    There is no dupe
  5. If Microsoft designed cars... by mcc · · Score: 5, Funny

    ...then... uh... i guess things would be just like they are now

  6. Blue screen of death... by CaVp · · Score: 2

    I guess blue is going to be the dreadest color for a production line....

    1. Re:Blue screen of death... by pyrrhonist · · Score: 2, Funny

      After you crash, it's a Red Windscreen of Death.

      --
      Show me on the doll where his noodly appendage touched you.
  7. BMW?? by NETHED · · Score: 5, Informative

    Sounds very Familiar

    More to the point. How does everyone feel giving up full control of thier car? What about the Mercedes digital brakes? There is no physical link between the pedal and the wheels.

    We were promised self driving cars, and we're on the way to it.

    --
    --sig fault--
    1. Re:BMW?? by kin_korn_karn · · Score: 4, Interesting

      I hate it.

      My car (2004 Mazda 3) has a fully electronic throttle body. It's all servo-driven, no linkage between the throttle and the gas pedal at all. If I had thought to check stuff like that I wouldn't have bought it.

      It hasn't given me any trouble yet (it's a 2004, it had better not), but just wait until the sensor shorts out and tells the engine that I want to floor it, or vice versa.

    2. Re:BMW?? by Timesprout · · Score: 4, Insightful

      Doesnt seem to bother people when they get on fly by wire planes.

      --
      Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
      What truth?
      There is no dupe
    3. Re:BMW?? by EggyToast · · Score: 5, Interesting
      Depends. A lot of traffic accidents and general traffic problems are caused by individuals acting separate from the "herd" of cars that are obeying traffic laws.

      Imagine if in 10 years, when there's a minor fender-bender, once the accident is off to the shoulder, traffic picks back up at a regular pace. Now, everyone gawks and traffic stays backed up for miles thanks to that.

      Or even better, when someone misses an exit, they don't slam on the brakes in the middle of the expressway and back up to the exit.

      There was an 8 car pileup with numerous fatalities last year on the Baltimore beltway thanks to someone in the middle lane cutting across 2 lanes of traffic at top speed to turn into those "Emergency turnaround" digouts between expressway lanes. If he literally was prevented from doing something that stupid thanks to his car, those people would still be alive. Sure, he'd be 5 minutes later to where he was going...

      Bring on cars that don't let people be idiots. The rest of us who do a good job of obeying traffic laws will be that much safer thanks to it.

      As far as software controlling much of our cars, we're already mostly there. Power locks lock you out of your car if they fail. Power steering makes your car nearly unturnable if that fails. Power breaks provide so much extra breaking power that if they fail, your car is basically going to be nearly brake-less anyway.

    4. Re:BMW?? by Xzzy · · Score: 5, Interesting

      Buy a classic auto while you still can.. before 1975 or so (depends on your state) so you can skirt around smog regulations as well. Especially if most of your daily driving is on local streets.

      Simple and functional, and after a while you'll even look forward to spending a weekend maintaining it.

      I drive a 40 year old vehicle, and wouldn't give it up for anything. As vehicles become more and more drive-by-wire, I only see it as validating my decision. ;)

    5. Re:BMW?? by Anonymous Coward · · Score: 2, Funny

      just wait until the sensor shorts out and tells the engine that I want to floor it, or vice versa.

      Yeah, there's nothing worse than your engine shorting out and telling the sensor that you want to floor it.

    6. Re:BMW?? by BackInIraq · · Score: 3, Insightful

      Doesnt seem to bother people when they get on fly by wire planes.

      But most of us assume that part of the extremely large cost of those planes is in both more reliable technology and increased redundancy. I think the systems of a Boeing 777 are probably held to a higher standard than a Mazda or even a BMW...mostly due to the more catastrophic nature of a failure.

      Doesn't mean we're right...maybe the systems on a BMW are every bit as reliable as on a plane. But it would still explain this reaction.

    7. Re:BMW?? by eengstro · · Score: 2, Insightful

      Bring on cars that don't let people be idiots.

      Yuck! A better solution is to stop issuing crackerjack licenses to the idiots.

      I for one do not want my car second-guessing or overriding my control inputs in a vain attempt to keep a potential idiot, who shouldn't be driving anyway, from being idiotic.

    8. Re:BMW?? by Locke2005 · · Score: 2, Interesting

      All the more reason to drive a manual transmission car. I had a Honda CRX that the dealer misinstalled the air conditioner in so that the the cotter pin came out and jammed the throttle advance (needed to keep the engine from stalling at idle when the A/C kicks) wide open. Cars starts accelerating across parking lot, I simply push in the clutch. Car pegs RPM gage, I shut off the engine. The other point is, you don't need drive-by-wire in order to have a throttle stick wide open!

      --
      I've abandoned my search for truth; now I'm just looking for some useful delusions.
    9. Re:BMW?? by MikeD03C · · Score: 2, Informative

      That's not entirely correct. There is a physical link for the electronic braking system on the MB vehicles that use Sensotronic electrohydraulic brakes. In the event of a failure of the electronic component a backup hydraulic resevoir kicks in to restore power braking.

    10. Re:BMW?? by TheGavster · · Score: 2, Insightful

      Taxing cars to encourage people buying new ones is insane; you generate a lot of waste cars that are still functional, and do a ton on environmental damange manufacturing the new ones. Ever wonder at how anything you buy for your car has hazmat data over half of the packaging's surface? Those are the watered down consumer grade versions of that stuff.

      --
      "Because Science" is one step from "Because old book". Try "Because of my experiment testing my falsifiable assertion".
    11. Re:BMW?? by edremy · · Score: 4, Funny

      It's all servo-driven, no linkage between the throttle and the gas pedal at all. If I had thought to check stuff like that I wouldn't have bought it.

      And a cable is any better? I've been a car where the accelerator cable broke and left the throttle wide open. I suspect a servo might well be more robust than a cable.

      Luckily it was a 70's era VM Vanagon camper. I think we went from 62 to 63 in the 5 minutes or so we spent playing with the accelerator pedal to see what the problem was.

      --
      "Seven Deadly Sins? I thought it was a to-do list!"
    12. Re:BMW?? by Politburo · · Score: 2, Insightful

      A lot of traffic accidents and general traffic problems are caused by individuals acting separate from the "herd" of cars that are obeying traffic laws.

      It can also be the other way around. Take an example where someone is driving the speed limit in the left lane of a major urban expressway. On most of these roads, when traffic permits, the left lane moves at least 10 mph faster than the speed limit. Someone driving the speed limit, obeying the law, will cause drivers behind them to back up and try and go around on the right side, which creates a hazard.

      What you say about traffic/accidents being caused by one person separate from the "herd" is correct.. it's just that the "herd" may not necessarily be the ones following the law.

  8. I can just imagine it... by Kesh · · Score: 5, Funny

    "You have shifted gears. You must restart your car for these changes to take effect."

    1. Re:I can just imagine it... by Blkdeath · · Score: 2, Informative
      as I understand it, the Prius has an interesting transmission that doesn't really use gears. I'm not entirely clear on how it works, but I guess it's a smooth continuum rather than the distinct steps of gears.

      It's called a Continuously Variable Transmission (CVT) and is the same technology as used in your friendly, every-day snowmobile.

      In a nutshell, it's a chain-driven set of pulleys that resemble a pair of cones that move together and apart to give you a near infinite number of ratio combinations. This maintains a constant RPM level in the engine for better fuel economy as well as less strain on the mechanics and better performance because your engine doesn't have to torque up, shift gears, then torque back into a power band again - you're always in a power band.

      If you don't have a Toyota dealership in your area that has a Prius on the lot, check out the Ford Five Hundred or Freestyle and see what it's like to drive without gears. :)

      --
      BD Phone Home!

      Shameless plug. Like you weren't expecting it.

    2. Re:I can just imagine it... by Celandro · · Score: 4, Informative

      Mod parent down as disinformative..

      The Prius does not use any belt or cone system. That is the older CVT used in other cars many years ago.

      The Prius uses a planetary gear set to transfer power around between its various inputs/outputs.

      See this article for more details:
      http://auto.howstuffworks.com/hybrid-car16.htm

  9. Software fixes are already part of auto recalls by silentbozo · · Score: 5, Informative

    The 2001/2002 Ford Escapes have to have the EEPROM flashed as part of a transmission recall. The days of software fixes for cars have been with us for a while.

    1. Re:Software fixes are already part of auto recalls by Incadenza · · Score: 2, Interesting

      Among us for some time indeed. A friend of mine had a similar problem two or three years ago with a Peugeot. I do not rememember the model, but it was one of the first batches out of the factory.

      She had problems with the engine shutting down sporadically while driving (at any speed). This happened one or twice. She went with her car to the garage, and the mechanic told her, blank face, "Known problem. Needs a software upgrade. Come back in two weeks time, we have place in our schedule by then".

      Of course she told the guy to give her a replacement car for two weeks - you must be mental to take a car like that into the Dutch rush hour traffic.

  10. Isn't the engine designed to turn off? by winkydink · · Score: 5, Funny

    Oh. At red lights. Not at highway speeds. Never mind.

    --

    "I'd rather be a lightning rod than a seismometer." -Ken Kesey

  11. Re:Crashing? I can see it now. by joneser005 · · Score: 2, Funny

    Toyota's new slogan: "Where to you wa..."

  12. what i'm waiting for by circletimessquare · · Score: 3, Interesting

    video of the car-to-car worm via bluetooth/ wifi that stalls cars

    you would watch it move like a wave through traffic: on one end, normal moving traffic, on the other, fender benders and honking horns and frozen cars

    it would move under overpasses and propagate upward and spread in either direction, like dominoes

    awesome and frightening and completely plausible in the next 10-20 years

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
    1. Re:what i'm waiting for by Kris_J · · Score: 3, Informative

      The F-secure anti-virus team tested a Prius for bluetooth virus susceptability. It wasn't interested.

  13. hour long software upgrade by trb · · Score: 5, Funny
    They said:

    sent owners a service notice advising them to bring the cars into dealers for an hour-long software upgrade.

    They meant:

    It's a five minute software upgrade, but if we told you that, you'd be upset when the service dept made you wait for an hour.

  14. There is a reason VW Beetle by Anonymous Coward · · Score: 2, Insightful


    is still the world most reliable car

    it has nothing to do with electronics

  15. Car Firmware Upgrades and Rebooting on the Road by billstewart · · Score: 2, Insightful
    My 2001 PT Cruiser had a "recall" a couple of years ago - they gave it a firmware upgrade, and the acceleration got better.

    Back in the 80s, I had an old beater 1971 Chevy Van with the usual Weird Chevy Electrical Problems. Every once in a while the engine would stop running while I was driving down the road (which is a problem for power steering...), so I'd put it in neutral and reboot, which would usually work. My current van is a 1987 Chevy, with a new engine installed about 5 years ago. The engine's not quite identical to the original, and every once in a while the monitoring system decides something's wrong and turns on the "Service Engine Soon" light, typically when I accelerate to pass somebody while going uphill on a freeway. There's no harm done, as long as that's the cause (as opposed to something actually being wrong with it), but to turn the light off you also have to reboot the car.

    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
    1. Re:Car Firmware Upgrades and Rebooting on the Road by Anonymous Coward · · Score: 2, Informative

      something's wrong and turns on the "Service Engine Soon" light, typically when I accelerate to pass somebody while going uphill on a freeway.

      Uh, that's a classic sign of an air leak and one of the sensors is picking up either too much or too little pressure.

      Could also be the knock sensor, O2 sensor, etc.

      Read the code from the computer and see why it turned on the light, duh...

  16. Updating software by sjbe · · Score: 4, Insightful

    could we be heading into an era where our automobiles will require software updates and fixes to keep them from literally 'crashing'?"

    Without putting too fine a point on it, yes! But there is no reason to go all chicken little. Standards of reliability for automotive software are generally much higher than for desktop PC software. No EULAs and auto manufacturers generally can not disclaim warranties. If a car breaks down due to crappy software, Consumer Reports will put out a report and people won't buy it. Additionally there are Lemon Laws and lots of eager lawyers to protect consumers. Unlike PCs where we have been trained to expect crashing software, people don't put up with that in cars, especially since there is the potential for physical harm when hurtling down the road at 80mph.

  17. Re:Crashing? I can see it now. by Rosco+P.+Coltrane · · Score: 2, Funny

    Minardi had a software glitch take out both their F1 cars at last weekend's grand prix, are they the next Microsoft?

    Well no, Minardi cars can start without an activation key.

    --
    "A door is what a dog is perpetually on the wrong side of" - Ogden Nash
  18. Slashdot reporting by krem81 · · Score: 2, Informative
    From the summary: While no accidents were reported to have been caused by the software glitch...

    From the actual article: The report said no injuries or fatalities have been linked to the problem, but it did not say whether there had been accidents due to the problem.

    Close enough for government work, eh?

  19. It Finally came true..... by kbeech · · Score: 5, Funny

    If OS's Were Cars If operating systems ran your car, and you needed to go to the shops... MS-DOS: You get in the car and try to remember where you put the keys. Windows: You get in the car and drive to the shops very slowly, because attached to the back of the car is a freight train. Macintosh System 7: You get in the car to drive to the shops and the car drives you to church. Unix: You get in the car and type 'grep store'. After reaching speeds of 200 mph en route, you arrive at the barbershop. Windows NT: You get in the car and write a letter that says "go to the shops". Then you get out of the car and nail the letter to the dashboard. Taligent/Pink: You walk to the store with Ricardo Montalban who tells you how wonderful it will be when he can fly you to the store in his LearJet. OS/2: After fuelling up with 6000 gallons of fuel, you get in the car and drive to the shops with a motorcycle escort and a marching band in procession. Halfway there, the car blows up, killing everyone. S/36 SSP: You get in the car and drive to the shops. Halfway there you run out of fuel. While walking the rest of the way, you are run over by kids with mopeds. AS/400: An attendant kicks you into the car and then drives you to the shops where you get to watch everyone else buying filets mignon.

    1. Re:It Finally came true..... by Anonymous Coward · · Score: 3, Funny

      Obviously your OS prohibits the use of the ENTER KEY.

  20. Perspective by fiannaFailMan · · Score: 4, Insightful

    1.2 million people a year die on the world's roads. Yet whenever a one-off incident (even a non-fatal / non injury one) grabs the headlines because there was something unusual about it, people start to panic.

    --
    Drill baby drill - on Mars
  21. If Microsoft made cars... by daVinci1980 · · Score: 2, Funny

    I guess not everyone has seen this. I thought it was kinda funny.

    (From Here

    At a recent computer expo (COMDEX), Bill Gates reportedly compared the computer industry with the auto industry and stated "If GM had kept up with technology like the computer industry has, we would all be driving twenty-five dollar cars that got 1000 miles to the gallon.

    In response to Mr. Gates' comments, General Motors issued the following press release (by Mr. Welch himself, the GM CEO).
    If GM had developed technology like Microsoft, we would all be driving cars with the following characteristics:

    1. Every time they repainted the lines on the road, you'd have to buy a new car.

    2. Occasionally your car would just die on the motorway for no reason, and you'd have to restart it. For some strange reason, you'd just accept this, restart and drive on.

    3. Occasionally, executing a manoeuvre would cause your car to stop and fail to restart and you'd have to re-install the engine. For some strange reason, you'd just accept this too.

    4. You could only have one person in the car at a time, unless you bought a "Car 95" or a "Car NT". But then you'd have to buy more seats.

    5. Amiga would make a car that was powered by the sun, was twice as reliable, five times as fast, twice as easy to drive - but it would only run on five percent of the roads.

    6. Macintosh car owners would get expensive Microsoft upgrades to their cars which would make their cars go much slower.

    7. The oil, engine, gas and alternator warning lights would be replaced with a single "General Car Fault" warning light.

    8. People would get excited about the "new" features in Microsoft cars, forgetting completely that they had been available in other cars for many years.

    9. We'd all have to switch to Microsoft gas and all auto fluids but the packaging would be superb.

    10. New seats would force everyone to have the same size butt.

    11. The airbag system would say "Are you sure?" before going off.

    12. If you were involved in a crash, you would have no idea what happened.

    13. They wouldn't build their own engines, but form a cartel with their engine suppliers. The latest engine would have 16 cylinders, multi-point fuel injection and 4 turbos, but it would be a side-valve design so you could use Model-T Ford parts on it.

    14. There would be an "Engium Pro" with bigger turbos, but it would be slower on most existing roads.

    15. Microsoft cars would have a special radio/cassette player which would only be able to listen to Microsoft FM, and play Microsoft Cassettes. Unless of course, you buy the upgrade to use existing stuff.

    16. Microsoft would do so well, because even though they don't own any roads, all of the road manufacturers would give away Microsoft cars free, including IBM!

    17. If you still ran old versions of car (ie. CarDOS 6.22/CarWIN 3.11), then you would be called old fashioned, but you would be able to drive much faster, and on more roads!

    18. If you couldn't afford to buy a new car, then you could just borrow your friends, and then copy it.

    19. Whenever you bought a car, you would have to reorganise the ignition for a few days before it worked.

    20. You would need to buy an upgrade to run cars on a motorway next to each other.

    --
    I currently have no clever signature witicism to add here.
    1. Re:If Microsoft made cars... by justins · · Score: 2, Funny
      I guess not everyone has seen this. I thought it was kinda funny.

      Yes, there are still a few wandering nomads in equitorial New Guinea who haven't seen the "if cars were as unreliable as computers" joke yet. Good job!
      --
      Now before I get modded down, I be to remind whoever might read this that what I am saying is FACT. - bogaboga
  22. Engineering philosophy by jd · · Score: 2, Insightful
    The problem is that companies work on the basis that it is cheaper to produce probably faulty goods with a low risk of being sued, than producing probably working goods with no real chances of failure.


    Regular devourers of world news will recall that a few years ago, Bridgestone/Firestone got sued for producing tires with a propensity for exploding. A few years before then, there were horror stories of malfunctioning cruise control that would activate itself due to a short-circuit, with no way to switch it off.


    Actually, a similar fault to that last one even appeared on the Space Shuttle - the last launch window was scrubbed when it was realized that the attitude rockets could fire themselves, even when the power was switched off.


    Engineering to build fault-tolerent systems (ie: systems that will still behave sensibly, even when something goes wrong) is expensive, difficult, time-consuming and requires enormous resources to cover every possible aspect.


    Even when faced with the prospect of multi-million dollar lawsuits for death/injury, it is often cheaper to simply let people die a torturous, firey death in agony than to prevent such incidents from arising. Because we live in a competitive world, where success is measured in dollars, there is simply no incentive to get things right. Getting things affordably wrong is a far more profitable approach.


    It would be possible to build a car that can do 100 miles to the gallon, be able to keep the occupants intact after a 150 mph head-on collision (F1 monocoques can handles 240 mph collisions) and have software driving every aspect of the system that is not only 100% free of bugs but is able to adapt to handle the natural degredation of the hardware. Such a car would cost about as much as a NASA Space Shuttle and don't expect the insurance to be any less, simply because of the theft value.


    A company producing such a car might sell as many as one. The McLaren F1 road car would be much more affordable but is wtill somewhere in the low double-digit sales, and was reportedly still in single-figure sales at the end of the first year.


    Having said that, I think that it should be mandatory that car companies produce the very best they can. Failure is not only an option, it's often so cheap that it's the best option. That should not be the case, ever. Bugs in software and failures of hardware are going to happen in the Real World, but they should not be encouraged. Good practices, good designs and thorough design reviews should be the norm.

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
  23. Re:Cars already need this.. by dopaz · · Score: 2, Insightful

    "The steering is even drive by wire."

    I call BS on this one.

  24. 2003 Ford Cobra stall issue by Anonymous Coward · · Score: 2, Interesting

    Any other cobra owners remember the 2003 stall issue? That one caused several accidents and took a long time for Ford to release a fix for the problem, I personally only had it happen once and that was in a long sweeping turn at about 70mph, I was about to get on the brakes because of slower traffic ahead of me and it stalled out leaving me with no ps or vac assisted brakes in a turn moving faster than I should have been. Lucky for me I recovered with no problem, but it could have been bad.

  25. Re:Irresponsible article! by Anonymous Coward · · Score: 2, Insightful

    Dude, lighten up - if you RTFA Toyota already admitted there was a problem and has a fix. Geesh. I've heard of brand loyalty, but that was just rediculous. ~Everything~ breaks - it's life, get over it.

  26. When too much tech is a bad thing by ducomputergeek · · Score: 2, Interesting
    I think we are starting to see this in cars, but I know its also a problem in some farm equipement now as well. Farmers used to be able to fix most mechanical beasts often with the use of bailing wire. One of our farmers had a problem last year during harvest: the engine would start. Why? One of the sensors went bad and wouldn't allow the engine to start. The engine itself was mechanically fine. Took four hours for a field tech to come by and replace the sensor. Four hours doesn't sound like a lot, but during planting or harvesting, getting that extra 50 arces planted or harvested is the difference between breaking even and making a profit.

    Growing up we did most of our own car repairs, changed the oil, etc. But with our newer car we cannot do a lot if something goes wrong, especially with electronics which is what fails 90% of the time.

    The day my push mower won't start because of a faulty sensor is probably the day I really get mad. Why? Because with all this technology, I think many, especially engineers, might have forgotten that true genisus is making something complex simple. Too often I think we are making simple things way too complex.

    --
    "The problem with socialism is eventually you run out of other people's money" - Thatcher.
    1. Re:When too much tech is a bad thing by NoMaster · · Score: 2, Informative
      Farmers used to be able to fix most mechanical beasts often with the use of bailing wire. ... One of the sensors went bad and wouldn't allow the engine to start.
      As a person with some experience on older car electronics, and a passing familiarity with both old and new farm machinery, I disagree. There's not a lot of difference; just a matter of percieved complexity.

      Let's say your old JD doesn't start, and after farnarkling around you figure the rail pressure pump has died. You bypass it so you're running on the fuel pump only, close off or restrict the return line, and get it running well enough to finish off what you're doing and drive it back to the shed.

      Or your new JD doesn't start, and the engine light flashing X times tells you the rail pressure sensor has died. You unplug the sensor and the thing runs in "limp home" mode well enough to finish off that paddock and drive back to the shed.

      What I'm getting at is neither is complicated - just that people think the latter is complicated because of the oogy-boogy "electronics". People are used to how mechanical stuff works and behaves and haven't (yet) learnt that mostly the electronics is really no more complicated.

      The steering / accelerator "drive-by-wire" stuff I've seen is not much nore complicated either. I've only seen a couple of examples of both, but they've all been set up so that there _is_ a mechanical connection there - so when the smarts fails, you can still drive it home. The steering units worked on a variable pressure pump; when the pump failed it was just like a normal power steering failure. And the electronic throttle controls had had cable backups - either a slack direct cble, or an electric clutch arrangement.

      The only thing I could think of that'd be a problem is a total ignition ECU failure - something I've not seen since the old Bosch / GM Jetronic units, which were basically complicated electronic points - or the injector controller in a diesel. Which are the electronic equivalent of a coil/ distributor or timing chain failure i.e. something you can't "patch up" in the field anyway.

      So "drive-by-wire", implying an electrical-only connection, is something of a misnomer - but it sounds good to the marketing people...
      --
      What part of "a well regulated militia" do you not understand?
  27. Re:Cars already need this.. by fred+fleenblat · · Score: 3, Informative

    >> I have a 1999 Volvo S80 [...]
    >> The steering is even drive by wire.

    I think this is only partially correct. That car, like all other cars to date, has a direct mechanical connection between the steering wheel and the angle of the front wheels. That connection is the primary means of changing the car's direction. You should be able to observe this by turning the ignition to the unlocked (but off) position and observing that the front wheels still budge when you turn the wheel.

    Volvo does have drive by wire for their outboard motors and for their line of forklifts, but the technology is not in cars yet; probably for legal reasons it has to be 100% reliable before they'll risk it.

    There is one other sense in which you are correct: when the stability management thing intervenes, it is capable of steering the car to some degree, however it does so by activating the brakes individually or changing the throttle position not by turning the wheel. It's also possible that the power steering unit has electronically controlled boost under control of the stability management thing and tones down the boost when you're already oversteering. But these systems (braking and boost reduction) would not come into play in normal driving.

  28. H3 may stall at freeway speeds too by WillAffleckUW · · Score: 2, Funny

    but that's because they run out of gas between refuelling stops every few miles ...

    --
    -- Tigger warning: This post may contain tiggers! --
  29. Good thing we don't have Jet Packs and Flying Cars by WillAffleckUW · · Score: 2, Funny

    or just imagine the Blue Screams of Death ... or Red Screams one supposes ... when that happens.

    --
    -- Tigger warning: This post may contain tiggers! --
  30. Irresponsible post (RTFA)! by brkello · · Score: 2

    Except there are confirmed reports...and Toyota admits they have a software bug. Obviously you love your car to the point you are irrational about it. My friend owns a Prius and he was happy to know there was a problem so he will be that much more careful when he drives up to Santa Fe on the freeway this weekend. Obviously there is some corner case that causes the software to do this or it would happen a lot more often...it isn't surprsing you haven't experienced it. But you do understand that even though you haven't experienced anything yet, something wrong could be just around the corner. And just becasue you haven't experienced any significant problems, doesn't mean that others are making problems up when things go wrong with theirs.

    --
    Support a great indie game: http://www.abaddon360.com
  31. Re:Cars already need this.. by avalys · · Score: 2, Informative

    Bullshit. You don't know what the hell you're talking about.

    No car in production today has drive by wire steering. Mercedes has drive by wire brakes, but even those have a mechanical backup in case something goes wrong.

    And no auto manufacturer in their right mind would design a car to operate using a client/server architecture. What would be the point? You could sit in your car and control a Volvo on the other side of the parking lot?

    I think you're just throwing out buzzwords and hoping for a mod up.

    --
    This space intentionally left blank.
  32. Larger picture by Thu25245 · · Score: 4, Insightful

    According to the organizations (JD Power, Consumer reports) who do objective studies of such things, the Prius has been more reliable, with higher owner satisfaction, that almost any other model.

    Electronic systems are, in general, more reliable, with lower failure rates, than the mechanical systems they replace. They are also easier to service. (Though the repair bill may very well be higher, and specialized equipment may be necessary.)

    This "software", as others have said, are not the same as the software we run on our PCs. The software quality standards are higher, and the testing is far more intense.

    People lament the loss of simpler mechanical systems that can be fixed with know-how and a socket set. We publicize every example of a system failure we hear of. But the numbers don't lie: a 2005 model with a half-dozen embedded computers has a far lower incidence of problems than a corresponding 1970 model when it was new. You are far less likely to ever have to call a tow truck in your lifetime than your father/grandfather was.

    Sensationalism is so much more fun than fact, though.

    1. Re:Larger picture by evilviper · · Score: 3, Insightful
      According to the organizations (JD Power, Consumer reports) who do objective studies of such things, the Prius has been more reliable, with higher owner satisfaction, that almost any other model.

      I've spent a lot of time looking Consumer Reports' car reviews, and frankly, their reviews have no basis in reality. Cars that were rated as extremely noisy, may be quieter than cars rated as quiet. I know this from experience. Go read their reviews of a few cars you have owned, and see if they match reality.

      Now, you can certainly attribute that to different reviewers having different standards, or to individuals' biases, but it seems to be very widespread, and seems obvious to me that it's always in favor of one brand or another. I can't prove it, but it looks very much like certain companies (eg. Toyota) are getting far more favorable reviews than the best cars of other makes, even on their poorest offerings.

      I've come to this conclusion long before I came to this thread, so the fact that the car in this case happens to be a Toyota is coincidence.

      Electronic systems are, in general, more reliable, with lower failure rates, than the mechanical systems they replace.

      That's really not true. I've never had a mechnical cooling fan fail on me, while I've had a few electric fans fail. Which would you will find in trucks? Not electric.

      They are also easier to service.

      Now that's just blatantly wrong. The only problems that are easy to fix on computers are the problems introduced by the computer. For instance when the warning light comes on, sensors go crazy, etc. You may also have heard of cases where certain models of cars will drive fine for 80,000 miles, then like clockwork, start running too rich/lean/etc. It's debatable whether car manufacturers are intentionally inducing these faults, but it is not debatable that these faults are there, and tricking the computer can commonly fix problems the computer has caused.

      But the numbers don't lie: a 2005 model with a half-dozen embedded computers has a far lower incidence of problems than a corresponding 1970 model when it was new. You are far less likely to ever have to call a tow truck in your lifetime than your father/grandfather was.

      The numbers don't lie, but you sure do. Those numbers are certainly due to improvments in engineering vehicles, (manufacturing/design) improvements to mechanical parts, improvements in fluids, materials, etc. It's only common-sense that those numbers would improve.

      Also, the /. mantra bears repeating. "Correlation does not equal causation"...

      Those numbers are also deceptive, because people don't complain much about computer problems with new cars. Give me numbers when those cars are 5 years old, the we'll see.

      I'm tired, so I'll say the one thing that will end this arguement instantly: New BMWs
      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  33. Re:Irresponsible article! by Meoworgg · · Score: 3, Interesting
    I had this exact same glitch in my 2004 Toyota Prius 6 days ago. I was driving down the 57 South (I live in socal), merging onto the 91 West. I was in "stealth" mode at the time (where the gas engine is off, and electric engine is on), since the traffic usually backs up on the 57-91 onramp. Suddenly, my whole dashboard lights up like a christmas tree, and my nav system flashes "PROBLEM" on the screen. I notice that ICE (the gas engine) no longer kicked it when I depressed my gas pedal, but the electric engine was still operating fine. Fortunately, I was only a mile away from the next exit, so I coast there in electric mode... fortunately, it was still rush-hour, so I didn't hold up traffic, and my battery "tank" was full.

    After pulling into a Denny's parking lot, I hit the power button to "reboot" the car... fortunately, most of the lights disappeared, and the gas engine kicked in, but there was still a few alert and check-engine lights on. I was able to drive the car another 15 or so miles at full highway speeds to the dealership, who were able to pull the problem codes (P3191 P0A0F) and reprogrammed my computer... and all is great again!

    While I agree that the problem is alarming, it wasn't as bad as the article claims... the electric engine still gave me all the power I need to pull over safely. And this was the only problem I've ever encountered with the Prius, after 13 months and 18000 miles!

  34. Re:Shouldn't have stolen that code not informative by jase! · · Score: 2, Funny

    no no no no no

    do not turn off the ignition until the car is stopped if you do that you loose your power steering and brakes, the engine will bounce of the rev limiter for a minute but shit happens.

    1. shift to neutral
    2. stop car
    3. turn off ignition
    4 . profit (sue ford)

  35. I hope this gets duped... by biglig2 · · Score: 4, Funny

    ... because perhaps by then all the people repeating the tired jokes about "if microsoft made cars" will have given up.

    Oh wait, this is slashdot, even the dupe is going to have tired jokes.

    --
    ~~~~~ BigLig2? You mean there's another one of me?
  36. Just another problem... by Ki+Master+George · · Score: 2, Insightful
    could we be heading into an era where our automobiles will require software updates and fixes to keep them from literally 'crashing'?

    Isn't that what recalls and engine checks have been doing all along, except for physical parts?

    --
    Before you walk a mile in someone's shoes, you should insult them so you know how they are and what they're doing.
  37. Re:Shouldn't have stolen that code not informative by BorgHunter · · Score: 2, Informative

    Power brakes are designed to stop the car from its top speed with the engine off. Enough vacuum is left to perform that maneuver just fine. If, by chance, you do lose brakes, you can still stop it without power assist, and you also have the handbrake to think about. And if you lose power steering...big whoop, so you have to turn the wheel a bit harder.

    Shifting into neutral does start slowing the car down. Problem is, some newer electronic automatic transmissions won't accept your shift into neutral at that high of a tach. This is especially true of those automatic manual thingies where you can shift up or down without a clutch and whatnot.

    But you really need to learn more about your car if you're going to drive one. It's kind of scary to know that there are people out there who think that if you turn off the engine, suddenly you won't be able to brake or steer. That's just not true. In fact, I suggest trying it in an abandoned parking lot sometime. Get moving a bit, then cut your power (NOT all the way to Lock, then your steering wheel does lock). Then try to steer, brake, etc. It'll all still work.

    --
    "Excuse me, did you say 'Trekker'? The word is 'Trekkie.' I should know; I created them." -- Gene Roddenberry
  38. Re:Shouldn't have stolen that code not informative by DavidTC · · Score: 5, Insightful
    I'm amazed people don't do that anyway. How do you know how your anti-lock brakes work if you don't practice?

    Whenever I get a 'new' car, I run down to the nearby college at night and find an empty lot and slide around a bit, and see what happens when I turn the engine off and if I can turn the key back and have it start magically, aka, a push start, which is incredibly useful if your car stalls while you're driving down the highway. (The other option being a normal start in neutral, but that takes much longer. And wouldn't work if your battery was dead, but that's a rather worse-case scenerio.)

    Then I come back and do it again when it's raining, solely for seeing how it skids.

    And if I have a car I've never tried it on, and I'm on a completely empty and straight stretch of highway, I kill the engine there, too, to see if it does something different at high speeds. (That's probably a traffic violation, but if a cop appeared out of the blue, I'd just say I stalled for some reason.)

    I will admit I've never tried to solve a hypothetical 'stuck pedal', but, OTOH, the parking lots aren't really big enough for that. It's a good idea, though. I know I can shift into neutral at any speed, but I agree that cutting the engine is better...for one thing, it should let the engine slow down the car. I'll have to figure out some way to test that.

    Do people really drive around in a ton of metal and not know in advance how it operates when bad things happen to it? When, exactly, are they planning on learning? The time to learn what happens when you slam on the brakes on a puddle of water is not in the middle of traffic. I once had an early antilock system that pulsed the brakes really oddly...there was a lag between losing traction and the unlocking of the brake, or something, I never really figured it out.

    I mean, there are somethings you can't learn until they happen, for example, if you really need to stop the car, you can switch into park when you're going 20 mph, but you'd obviously never want to do that unless you had to. But what happens when your engine cuts off, or if you hit a patch of water while turning? Everyone should test that.

    --
    If corporations are people, aren't stockholders guilty of slavery?
  39. New Microsoft Slogan by Mr+Pippin · · Score: 2, Funny

    Microsoft Windows for Automobiles - "Where do you want to stall, today?"

  40. Re:Shouldn't have stolen that code not informative by roseblood · · Score: 3, Informative

    Power for PS(Power Steering) is provited by the rotation of the engine components. The power is moved to the PS pump via a belt (usualy, some are electric these days.) When you kill the ignition but the car is still in gear, the engine will still be rotating, as it wull still be conected to the drive train. Thus, PS will not fail until the speed of engine rotation is greatly diminished.

    Power for PB(Power Brakes)is USUALY provited by vacum assist. This is created by the "sucking" power of an engine as it pulls air in the intake and pushes it out the exhaust. The engine is an air pump. As long as the engine turns you will get some vac. The effectiveness of PB will dimish at a migh faster rate than PB. BUT, there will be more than enough power in the PB system even after the engine stops rotating to fully depress the brakes to the floor. Basicly, as long as you don't need to come to a full and complete stop more than once after you shut off the engine the PB system will work just fien for you after the ignition switch is set to the OFF position.

    Therefore, the best way to stop a vehicle with a run-away throttle is to 1) Kill the throttle, 2) Apply brakes 3) Shift transmission into lowest available gear(to use the fiction of the internal engine components to maximum effect in the effort to bring your vehicle to a stop.) 4) find something to "rub" your car against to use in an effort to bleed off knetic energy (your fenders are now your brake pads.)

    Under most circumstances you will never need to use more than steps 1 and 2. In a downhill situation where gravity is adding knetic energy to your vehicle and simply stoping your car RIGHT NOW won't do (fast lane of a multi-lane highway) then you can use step 3 to conserve power in your PB system for when you are going to bring the vehicle to a complete stop. Step 4 is for when your brakes fail (and this get interesting*)

    *interesting is defined by having thoughts along the lines of "Oh my God, we're all gonna die!"

    --
    There are lies, damned lies, and statistics.
  41. Re:See, it's that 'should' by screwdriver · · Score: 2, Funny

    If you drive like me then 90 MPH is highway speed.

  42. My Prius has done this thrice... by Thagg · · Score: 3, Funny

    and my wife's, twice. She has had hers in for the "recalibration of the computer." We'll see if hers acts any differently now than it did before.

    It seems to me that the problem occurs when the computer tries to restart the engine, and it doesn't catch immediately. It does seem that the car will continue to run as an electric car, and it does seem to come its senses within a few seconds.

    My blindingly white Prius is nicknamed "Snowcrash" for exactly this reason -- if the computer goes down, it's just a car shaped hunk of metal.

    Thad Beier

    --
    I love Mondays. On a Monday, anything is possible.
  43. Eerie coincidence (or maybe not!) by Dahamma · · Score: 2, Funny

    Yow. I saw a Prius on the side of the highway this morning - I was wondering what could have gone wrong with it, since it looked brand new.

    The driver was wandering around the hood looking like he wanted to open it, but had no idea what to do when he did :)

  44. Re:Shouldn't have stolen that code not informative by roseblood · · Score: 2, Informative

    Sorry for NOT using the preview button to catch my typos.

    Also Item 1 in my car-stoping system should be KILL THE IGNITION not KILL THE THROTTLE.

    Sorry for any confusion that this may have caused.

    --
    There are lies, damned lies, and statistics.
  45. Software upgrades are small price to pay by Petersson · · Score: 2, Interesting
    I'm very content with computer controlled car engines - it makes huge difference compared to former purely mechanical control:

    by optimization of air/fuel mixture the computer saves the fuel, allows to start the in a one or two seconds even in very cold weather, motor power is increased , catalyc converter can be used effectivly etc.

    Well, even entire power plants, chemical plants, oil refineries, dams and almost entire industry is controlled by computer and works fine (mostly).

    Living with computers is sometimes hard, but it would be quite harder without them!
    ---
    Computers are just another machines that is hard to master

    --
    I'm not insane. My mother had me tested.
  46. Re:Shouldn't have stolen that code not informative by Lumpy · · Score: 2, Informative

    Do people really drive around in a ton of metal and not know in advance how it operates when bad things happen to it?

    you must either be living outside the USA, or are very young and has very little experience with your fellow driver on the roads .

    Yes, 99.997% of all drivers do not know ANYTHING about their car. Hell a large subset of that group can barely drive.

    Examples? Ok. offramp, semi and a line of cars taking it. Semi merges onto highway as does 40% of the cars, the other 60% try to speed past the semi on the shoulder/ last 300 feet of on-ramp then get pissy when the SEMI does not jam on the brakes and kill everyone behind them just to let the idiots in front of them.

    This happens on a regular basis, People that drive happily at the speed limit continue that highway speed through construction zones (did they miss all the orange barrels?) and get pissy about the people that dared to slow down in the construction zone and not drive 70mph 3 feet from the construction workers.

    Most people on the road barely can drive their car safely, let alone an advanced topic like knowing how the car they own reacts in different situations.

    --
    Do not look at laser with remaining good eye.
  47. Re:Shouldn't have stolen that code not informative by johno.ie · · Score: 2, Interesting
    Do people really drive around in a ton of metal and not know in advance how it operates when bad things happen to it? When, exactly, are they planning on learning? The time to learn what happens when you slam on the brakes on a puddle of water is not in the middle of traffic. I once had an early antilock system that pulsed the brakes really oddly...there was a lag between losing traction and the unlocking of the brake, or something, I never really figured it out.

    Yes they do, and some of them think people like us are nuts.

    Like you, I have spent some time experimenting with the limits of my cars. I've always done my experiments when theres no other traffic around, and yes I've checked the max speed of my cars in these conditions too. On a few occasions this has come up in conversation and some people have berated me for risking my life. I've tried explaining to these sheepheads the value of the knowledge I've collected, but they're response is usually along the lines of "if you drive according to the regulations nothing will every go wrong". Bullshit!

    I've had one highspeed crash (60kph) when my car aquaplaned on a slight bend. Thanks to the fact that I had done some experimental driving, I didn't panic, got the car back under some kind of control and didn't cross into the other lane of oncoming traffic. Sure I hit a signpost and damaged the front of my car, but I drove away afterwards and nobody got hurt.

    --
    872835240