ts role is to make the engine and the transmission can gradually engage, so as to ensure a smooth start of the car; Temporarily cut off the connection between the engine and the transmission to facilitate gear shifting and reduce the impact of gear shifting; When the car emergency braking can play a separation role, to prevent the transmission system overload, thus playing a certain protective role. Clutch is similar to a switch, engaging or disengaging power transmission. The active part of the clutch mechanism can be temporarily separated from the driven part, and can be gradually engaged. In addition, relative rotation is also possible during the transmission process. No rigid connection shall be made between the driving and driven parts of the clutch. Every form of car has a clutch, but in a different form. This paper by
