abs制动。制动防抱死系统（antilock brake system）简称ABS。作用就是在汽车制动时，自动控制制动器制动力的大小，使车轮不被抱死，处于边滚边滑（滑移率在20%左右）的状态(Antilock brake system (ABS) is referred to as abs. The role is in the car when braking, automatic control of brake force, the wheel is not locked in, roll slide (slip rate is about 20% of the state))