Why does a car jolt back after coming to a stop? Do you think there is a way to prevent or minimize it?
by 
JackTechno
ANSWERS: 7
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You are stopping something that was moving with enough momentum/speed/intertia etc. You have to brake slower.
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It's the suspension returning to rest. No suspension would avoid it.
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because as you are breaking your forward momentum pushes forward on the suspension system. compressing the front suspension extending the rear. the moment that momentum is gone the potential energy stored in the suspension is released pushing you back into the resting state. bose is making an electromagnetic suspension that gives the smooth ride of a soft suspension but the control of a hard one. that system might be able to be programmed to compensate for that however there will still be the lurch backward of your own body into the seat when that momentum is eliminated. by a controled release of the breaks just as the car nears a stop I do minimize the backward lunge... rather than the car moving backwards to resting position I allow the wheels to move forward to the resting position.
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It's called inertia. If you ease onto the brake when you are stopping it will lessen the jolt.
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anticipate stopping first and ease into it ... don't run up onto the stop sign and slam the brakes ... one sure way to shorten the lifespan of your pads ... and you never thought you'd use science when you got out of high school
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Could it be you keep the engine engaged all the way to a stop ? If yes the last ignition will turn the engine backwards because it dont have time for the piston to get to the top before the gas explode. Put it in neutral for the last bit of braking and use the brake pedal instead.
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I learned a technique from an advanced driver, which involves releasing the brake *as* the car stops. If you get it just right, the car stops completely smoothly, without a jolt. The snag is, it's very difficult to time it just right. You release the brake literally as the car comes to a standstill, and then apply it again a fraction later to hold the car stationary.
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