ABS only adjusts the anti-lock brake pressure on the wheels that tend to lock during the braking process only after the speed of the car exceeds a certain speed (such as 5km/h or 8km/h). When the speed of the vehicle is reduced to a certain level, the ABS will automatically stop the anti-lock braking pressure adjustment. After that, the braking process of the vehicle equipped with ABS will be the same as that of the conventional braking system. The wheels are locked by the brakes. Dead on car brakes lock up. This is because when the speed of the car is very low, the brake lock of the wheels has little effect on the braking performance of the car, and in order to make the car brake and stop as soon as possible, the wheels must be locked.