Sudden Acceleration Verdict Is in - its not a electronic issue

Discussion in 'Gen 3 Prius Main Forum' started by s1njin, Feb 8, 2011.

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  1. qbee42

    qbee42 My other car is a boat

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    The mere fact that you compare an embedded firmware control system to a desktop operating system suggests you have no understanding of how these systems work, or how they differ.

    Tom
     
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  2. Politburo

    Politburo Active Member

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    It's really nothing like Windows.

    Consider that Windows has to run on a wide range of hardware and run a wide range of software, both of which Microsoft has no control over. And to add another layer of complexity, the software has to talk to the hardware using drivers typically written by a third-party (this is where most Windows bluescreen errors occur).

    In a firmware application, the manufacturer (in this case Toyota) has complete control over the hardware that the code will run on, and has complete control over the inputs that the software sees. That doesn't mean that firmware debugging is a trivial task, but it just isn't in the same realm as a general-purpose operating system.

    ETA: I see that Tom made the same point while I was typing this.
     
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  3. lolder

    lolder New Member

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  4. KK6PD

    KK6PD _ . _ . / _ _ . _

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    Next we will have the gremlins that Shatner saw on the wing of the airplane in Twilight Zone.....
     
  5. SageBrush

    SageBrush Senior Member

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    SUA is a religious experience: either you have faith, or you do not.
     
  6. Roland1555

    Roland1555 Senior Member

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    While I am certainly happy for Toyota and always felt that there was nothing wrong with the cars, sadly, I think the memory in people's minds of the recalls and fines paid by Toyota will linger for a longer time that news of the vindication.
     
  7. 2to4

    2to4 Wherever we end up

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    What matters to me is what I experience and not what other people think. I have never experienced any sudden acceleration problem with my Prius.

    On my Honda Valkyrie, I did experience sudden acceleration many times. There was a design flaw, and it was in my wrist. :thumb:
     
  8. evpv

    evpv Active Member

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    FYI, none of the vehicles tested in the NASA study were Prius. They tested 6 Camry's.
     
  9. RRxing

    RRxing Senior Member

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    All I can say is they certainly took long enough. At least I know I can drive my car again. I hope the battery didn't die after 10 months in the garage.
     
  10. 32kcolors

    32kcolors Senior Member

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    And your point is? I hope you're not trying to imply that the problem only affects Prius and not other Toyotas with SUA claims.

    My god, some people are a paranoid bunch :rolleyes:
     
  11. DataWrangler

    DataWrangler Prius Owner (finally!)

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    Definately not a Prius-relevant document:

    Page 8

    If the driver depresses the brake pedal before turning on the ignition, then a voltage is instantaneously applied at an input of both microcontrollers before their 5V power supplies turn on. This can cause latch-up of the microcontroller input circuits.

    Can't start a Prius without depressing the brake pedal. :cool:
     
  12. Skoorbmax

    Skoorbmax Senior Member

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    haha
     
  13. SageBrush

    SageBrush Senior Member

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    I was just thinking about the class-action lawsuits. Maybe Toyota should offer a settlement: $100 voucher towards the purchase of a new Toyota.

    :)
     
  14. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    I am not sure it is fair to tarnish every programmer ever simply because Microsoft does shoddy work. This would be like blaming Toyota for Yugos.
     
  15. Pri4Us

    Pri4Us Junior Member

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  16. evpv

    evpv Active Member

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    My point is they didn't test a Prius. A Prius with Hybrid Synergy Drive is a lot more complex than a standard 4cyl/6cyl Camry. Brake force simulation alone makes the Prius much more complicated. Add two electric motor/generators to the equation. Add regenerative braking. Add the latest generation of traction control and stability control. Power inverter, etc.

    But if it makes you feel good, go ahead and assume everything is OK because they tested a few standard 2005 Camry's and didn't find anything. That won't help the people who've experienced problems.
     
  17. impact10

    impact10 Junior Member

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    So, you lied when you said you'd accept the NASA report? Knock me over with a feather!

     
  18. bisco

    bisco cookie crumbler

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    well, that's disappointing.:(
     
  19. Engineer

    Engineer New Member

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    Man, you don't give up, do you? Still tilting at wind mills when it comes to the Prius? :eek:
     
  20. socalev

    socalev New Member

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    :rolleyes:my god, some people are a defensive bunch
     
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