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Unintended acceleration

Discussion in 'Gen 3 Prius Technical Discussion' started by bob waber, Jul 8, 2016.

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  1. stormchaser

    stormchaser Junior Member

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    Agree with above.
    Even my CT200h does this and it's normal. Mines basically a Prius underneath.


    iPhone ?
     
    #21 stormchaser, Jul 18, 2016
  2. bob waber

    bob waber Junior Member

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    If I press the brake, the energy display shows the battery is still adding power to the wheels which fights against the brake, wasting energy!
    What moron would design a car like this??
    ALSO, it does this when the gas engine is NOT RUNNING.
     
    #22 bob waber, Jul 27, 2016
  3. bob waber

    bob waber Junior Member

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    It does this with the gas engine OFF, how do you explain that? Does your car do this?
     
    #23 bob waber, Jul 27, 2016
  4. bisco

    bisco cookie crumbler

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    sounds like you got a dud. but maybe toyota has no idea what they're doing.

    mine doesn't do that, might be time for a trip to the dealer, while you're still under warranty.(y)
     
    #24 bisco, Jul 27, 2016
  5. fotomoto

    fotomoto Senior Member

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    Creep in EV? Yes. Why would it be any different?
     
    #25 fotomoto, Jul 27, 2016
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  6. ZeroTX

    ZeroTX Junior Member

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    Seriously, questioning the hybrid design skills of Toyota? Hehe.... There's nobody that has got it more "right" or consistently so as Toyota, and frankly, I like Honda cars better overall.
     
    #26 ZeroTX, Jul 27, 2016
  7. CR94

    CR94 Senior Member

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    What "energy display"? If I press my brake in "D" with the car and engine stopped, ScanGauge shows battery current drops to the same level it does in PARK. Therefore no battery energy is wasted in that condition "fighting against the brake."

    Yes, of course the car creeps in READY in "D" with the engine stopped and brake released---just like every other automatic-transmission vehicle in its nearest equivalent to "READY." If it didn't, that would confuse and scare off potential owners during a test drive.
     
    #27 CR94, Jul 27, 2016
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  8. fuzzy1

    fuzzy1 Senior Member

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    Yes, mine does, ICE on and ICE off. But either way, my Prius' creep is weaker than the creep of dad's automatic Jeep.
     
    #28 fuzzy1, Jul 28, 2016
  9. mmmodem

    mmmodem Senior Taste Tester

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    Are you sure the arrows aren't reversed and power is being transferred from the wheels to the battery? Actually it turns from orange to green, so you can't miss that.

    If your car is doing adding power to the wheels at a stop and engine is not on, there's something wrong with your car. Take it to be looked at.
     
    #29 mmmodem, Jul 28, 2016
  10. CR94

    CR94 Senior Member

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    Agree with the point you intended, but to be more literal, it's mathematically and physically impossible to "add power to the wheels" while they are stopped. Power is torque times speed, so if speed of wheels is zero, power to wheels is zero, no matter how large the torque. That doesn't mean it isn't possible to waste power attempting to turn stopped wheels---as most conventional automatic cars do, and a Prius hypothetically could with a specific malfunction.
     
    #30 CR94, Jul 28, 2016
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