Through the free gap analysis of the brake pedal, cluch pedal and Steering wheel, this articlemainly discussed the function and importance of all the free gaps from the control machanism of a car.

• 通过对离合器踏板、制动踏板及方向盘自由行程的分析,本文论述了汽车上各操纵机构自由行程的作用及意义。