Clutch and Brakes System transfer the motor’s rotating movement to accelerate or decelerate in short times.
Clutch is a mechanical device that engages and disengages power transmission, especially from a drive shaft (driving shaft) to a driven shaft. The clutch acts as a mechanical linkage between the engine and transmission; and briefly disconnects, or separates the engine from the drivetrain, and therefore the drive wheels, whenever the pedal is depressed, allowing the driver to smoothly change gears.
Brake is a mechanical device that inhibits motion by absorbing energy from a moving system. It is used for slowing or stopping a moving vehicle, wheel, axle, or to prevent its motion, most often accomplished by means of friction.