离合器的作用是使发动机与传动系逐渐接合，以保证汽车平衡起步；暂时切断发动机与传动系的接合，便于起动发动机和变速换档；限制所传递的扭矩，防止传动系过载。可以看出，离合器必须满足如下要求：接合平顺柔和，保证汽车起步平稳；分离迅速彻底，便于起动发动机和变速器换 Clutch is the role of the engine and the gradual engagement of the drive train to ensure that the balance of the vehicle started; temporarily cut off the engine and the drive train engagement, easy to start the engine and transmission shift; limit the transmitted torque to prevent the drive train overload. It can be seen that the clutch must meet the following requirements: smooth and smooth engagement to ensure a smooth start of the car; separation quickly and thoroughly, easy to start the engine and transmission change