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Why does the brake pedal automatically rebound when pressed all the way down?

1 Answers

DiAvery

07/29/25 4:57pm

The reason the brake pedal automatically rebounds when pressed all the way down is due to the ABS system functioning as a safeguard. Here are the specific details: ABS functioning as a safeguard: When you press the brake pedal hard and it rebounds or pulsates, it indicates that the ABS is working as a safeguard during emergency braking. Origin of the ABS anti-lock braking system: In emergency situations, drivers may slam on the brakes to control speed and prevent danger. However, when the braking system suddenly locks the wheels, it can cause the vehicle to lose lateral control. Moreover, continuously locking the brakes is not the most effective way to quickly reduce speed. Hence, the anti-lock braking system was developed. Specific function of the ABS anti-lock braking system: When the driver presses the brake pedal hard, the sensing device will repeatedly open and close the brake fluid circuit to prevent wheel lock-up and the resulting lateral deviation. At the same time, this enhances the most effective and safe stopping within a short distance. Therefore, the pulsation of the brake pedal is caused by the rapid opening and closing of the brake fluid circuit, which is a normal phenomenon.

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