Is it good or bad that the emergency brake will automatically turn on the double flash mode? 2020-04-03 Browse: 436 Author: Many owners of Geely 4s store in Shiyu, Anhui Province must have such questions: Why does the vehicle vibrate when the car brakes suddenly, the brake pedal is numb, the vehicle is accompanied by a "bang" sound, and colleagues have turned on the double flash mode for a short time? In fact, this situation is not a bad thing, but because the car is equipped with ABS brake anti-lock function, which is to ensure driving safety.
The reason why the vehicle will make a thump sound is because the working process of ABS, like continuous braking and relaxation during driving, is somewhat similar to the high-frequency "point brake". In this process, the wheel is a high-frequency "point brake". In this process, the static friction and rolling friction between the tire and the ground are intertwined, so the vehicle will feel vibration, so it will hear a "bang" sound.
The reason why the brake pedal is numb is that the brake fluid flows back to the brake master cylinder during ABS pressure relief, and the liquid backflow will impact the piston of the brake master cylinder and then transfer it to the brake pedal, which is why the foot will feel numb.
The reason why the car flashes automatically is to remind the rear vehicles to pay attention to emergency braking and drive carefully.
Finally, I would like to remind you that in case of emergency, you must brake urgently, and the brake pedal must be pressed to the end, so as to activate the ABS system.
(Photo/Text/Photo: Ask and Answer the Beast) Mercedes-Benz S-Class Questioning Li Yi Buick GL8 P5 Xpeng Motors P7 @ 20 19