What are the major systems of a car?

[VonWyatt]

An automobile consists of five major systems: 1. Fuel supply system: According to the requirements of the engine, it prepares a certain quantity and concentration of the air-fuel mixture to be supplied into the cylinder and expels the exhaust gases from the cylinder into the atmosphere after combustion; 2. Lubrication system: It delivers a specified amount of clean lubricating oil to the surfaces of relatively moving parts to achieve liquid friction, reduce frictional resistance, minimize wear on components, and clean and cool the surfaces of the parts; 3. Cooling system: It dissipates part of the heat absorbed by the heated components in a timely manner; 4. Ignition system: The combustible mixture in the cylinder is ignited by an electric spark. A spark plug is installed on the cylinder head of a gasoline engine, with its head extending into the combustion chamber, capable of generating an electric spark between the electrodes of the spark plug at the right time; 5. Starting system: The process from the crankshaft beginning to rotate under external force to the engine starting to idle automatically is called engine starting. The device required to complete the starting process is called the engine starting system.