We all know, need help in starting the engine support, automotive starter is playing this role. Starter with three components to implement the entire starting process. The introduction of DC motor current from the battery to the starter drive gear and a mechanical movement. Transmission will drive into the flywheel ring gear mesh, and can automatically disengage after starting the engine off by the starter circuit of an electromagnetic switch. Where is the starter motor inside the main part, it works conductor in a magnetic field is energized by the force. Including the necessary motor armature, commutator, poles, brushes, bearings and housings and other components. In order to run the engine before its own power, you need outside help rotation. Stationary engines outside help from the operation of the transition to the process on their own, known as engine starting. Start the engine commonly used methods are labor starting, auxiliary gasoline engine and electric start starting three forms. Starting with human hove or hand methods, and simple but it is not convenient, and labor-intensive, apply only to some small power of the engine, and in some ways the car is only retained as a reserve. Auxiliary gasoline engine starter is mainly used in high-power diesel engines; electric starting mode is simple. Rapid start, starting with the ability to repeat, and can remote control, so it is widely used in modern cars.