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Interesting Cyclical Surging Under Hard Acceleration

Discussion in 'Gen 2 Prius Main Forum' started by bwalkhouse, Dec 17, 2004.

  1. bwalkhouse

    bwalkhouse New Member

    Joined:
    May 21, 2004
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    Location:
    Alberta
    Yesterday and today I had occasion to require rapid acceleration from my Prius shortly after starting up.

    The engine note remained steady, but I could feel a definite cyclical surging in the output from the PSD, with a noticeable pulse and then a lag every couple seconds.

    Has anyone else noticed this?

    BTW acceleration is excellent in the Prius 8), I ended up speeding while making my erstwhile observations!! Luckily no radar was observing me!
     
    #1 bwalkhouse, Dec 17, 2004
  2. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
    Staff Member

    Joined:
    May 11, 2004
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    Location:
    Far-North Chicagoland
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    The entrance/exit from my work parking lot is on the inside of a curve. Therefore, both lanes of traffic are approaching from acute angles. If I'm the vertical line in a capital "T" the cross traffic isn't perpendicular, but rather more like a rounded carot ^. Visibility is tough and when you see an opening, you take it.

    Needless to say, I punch it. And have experienced similar surges and lunging. I first wrote it off as the tires slipping and power redistribution, but have since experienced it on dry pavement as well. I suppose Priapus is trying to tell me that I'm accelerating too hard, but I am trying to avoid his telling me that my side airbag has just deployed.
     
    #2 TonyPSchaefer, Dec 18, 2004
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