What is the working principle of the engine?

The working principle of the engine is that the battery provides electric energy, and under the control of the ignition switch and the starting relay, the starter converts the electric energy into mechanical energy, which drives the flywheel gear ring and crankshaft of the engine to rotate, so that the starting work can be circulated and the engine can enter the self-running state. Working process of automobile starting system: 1. Turn the ignition switch to the on position with the key, turn on the power supply of the instrument, and after a few seconds, the car will enter the ready-to-start state; 2. Turn on the SRART block of the ignition switch and connect the battery and the circuit of the starting system; 3. The starter relay is energized; 4. After the starter is electrified, the spindle rotates under the electromagnetic action; 5. The driving gear on the main shaft of the starter rotates to drive the flywheel and crankshaft of the engine to rotate; 6, under normal circumstances, after a short start, the engine can enter the state of automatic operation.