The starting system turns the electrical energy stored in the battery into mechanical energy. To achieve this conversion, a starter must be used. The starting system includes the following components: battery, ignition switch (starter switch), starter assembly, starting relay, etc. The function of the starter is the power generated by the DC motor, which drives the crankshaft of the engine to rotate through the transmission mechanism, thereby realizing the starting of the engine. Although the forms of starters used in different types of cars are different, DC motors are basically similar. The main difference lies in the transmission mechanism and the control device. 1) The function of the DC series motor is to convert the electrical energy input by the battery into mechanical energy to generate electromagnetic torque. 2) The transmission mechanism is also called the starting clutch and mesher. The function of the transmission mechanism is to mesh th…