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Lurchingforward on braking over bump

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by hornedfrog, Aug 12, 2015.

  1. nicoj36

    nicoj36 Active Member

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    Try emergency/panic braking on a bump and see if you guys still think its "safe". Towards a wall or another car or something.

    It is a problem and it is unsafe.
     
  2. fuzzy1

    fuzzy1 Senior Member

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    Are you actually experiencing it on emergency or panic braking? Or just projecting what it would be like, based on what is happening with lighter braking?
     
  3. cproaudio

    cproaudio Speedlock Overrider

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    From my observations of scangauge, When the regen brakes cut out, The friction brakes kick on as backup. It happens in a split second. This is the delay braking you feel. Sometimes the regen brakes come back sometimes it doesn't. The friction brake is always there to back up the regen brake. The brake pedal is in a sense mapped like the gas pedal. There's no set type of brakes when you press the brake pedal at 25% of the pedal travel. The braking system switches between regen only braking and friction + regen braking and friction braking only. The CHG graph only shows what normally would have slow down the car. As I've said before, in extreme cases, friction braking is what's slowing down your car even though the CHG bar is not pegged. Regen brake only supplements the friction brake. Friction brakes will always work while regen brakes is not foolproof. Doesn't matter what happens, the friction brakes will always stop the car.