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What will happen if you stomp on the gas pedal when Prius is at 0 mph

Discussion in 'Gen 3 Prius Main Forum' started by Roger T, Sep 7, 2015.

  1. Roger T

    Roger T Member

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    Has any more tried this while measuring the RPM and power?

    From my guess, the engine will not go too high (over 3000 rpm) when the car is still slow (<10 mph) to protect the MG1 from over spinning.

    Just curious anyone has more info about this?

    Roge
     
    #1 Roger T, Sep 7, 2015
    Last edited: Sep 7, 2015
  2. Maarten28

    Maarten28 Active Member

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    If I get the equations right, the ICE can never spin over 2800 rpm when the car is stationary. And it's not MG2 that needs protecting, it's MG1: 10,000 rpm on MG1 while MG2 does not run (car is stationary) means 2,778 rpm on the ICE.
    Then, while accelerating, the ICE rpm will increase in a linear fashion until around 73 mph when it can do 5,200 rpm: 73.27 mph with MG1 at 10,000 rpm makes the ICE rev at 5,200 rpm.
    I have not tested this with a scangauge and I don't know if the Prius will let the ICE rev at more than 5,200 rpm.
     
    #2 Maarten28, Sep 7, 2015
    Roger T likes this.
  3. David Beale

    David Beale Senior Member

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    Oh the HORROR!! Wasting fuel like that!!! ;)
     
    #3 David Beale, Sep 7, 2015
    AzWxGuy likes this.
  4. CR94

    CR94 Senior Member

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    It's simple algebra to find car speed, engine speed, or MG1 speed when any two of those are known.
    Solve the equation 0= 3.6×engine speed minus 2.6×speed of ring gear minus speed of MG1. The ring gear speed is 3.268 times the speed of the wheels.
     
    #4 CR94, Sep 8, 2015
  5. qdllc

    qdllc Senior Member

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    No clue except the motor(s) will do as designed to go from 0 to MAX as fast as the software lets them do it.
     
    #5 qdllc, Sep 8, 2015
    DoubleDAZ likes this.
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