Four parts of a car (schematic diagram)

A car usually consists of four parts: engine, chassis, body and electrical equipment. The power generated by the engine is transmitted to the driving wheel through the clutch, transmission, universal transmission shaft and differential to drive the automobile. The following is a diagram of four parts of the car, so that you can better understand the composition and structure of the car.

The engine is the heart of a car.

Its function is to make the fuel burn to generate power, and then drive the wheels to drive the car through the transmission system of the chassis. There are two kinds of engines: gasoline engine and diesel engine. The engine consists of crank-connecting rod mechanism, valve train, oil supply system, cooling system, lubrication system, ignition system and starting system. The ignition mode of diesel engine is compression ignition, so there is no ignition system.

Chassis is the "skeleton" of a car.

The function is to support and install the automobile engine and its parts and assemblies, form the overall shape of the automobile, accept the power of the engine, and make the automobile move and run normally. The chassis consists of four parts: transmission system, driving system, steering system and braking system.

This is the shell of the car.

The car body is installed on the chassis frame for drivers and passengers to ride or load goods. The body of cars and buses is generally an integral structure, and the body of trucks is generally composed of cab and cargo box.

Electrical equipment is the "nervous system" of a car.

It consists of power supply and electrical equipment. Comprise a power supply and a generator. Electrical equipment includes engine electronic control unit (ECU), sensors, actuators, engine starting system, gasoline engine ignition system and other electrical equipment.