What are the parts of a car? It doesn't have any function or principle. I can't understand those technical parameters. How did that work out?

A car usually consists of four parts: engine, chassis, body and electrical equipment.

engine

The function of the engine is to burn the fuel supplied to it and generate power. Most cars use reciprocating piston internal combustion engines (because modern technology is developing rapidly, besides internal combustion engines, there are fuel cell engines and battery motors, which we will introduce in future new technologies). Generally, it consists of engine body, crank-connecting rod mechanism, valve train, supply system, cooling system, lubrication system, ignition system (used by gasoline engine) and starting system.

basis

The chassis receives the power of the engine to make the car move and ensure the car to run normally according to the driver's control. The chassis consists of the following parts:

Power train-transmits the power of the engine to the driving wheels. It includes clutch, transmission, transmission shaft, drive axle and other components.

Drive system-connects all the assemblies and parts of the car into a whole, supports the whole car and ensures the normal running of the car. The drive system includes frame, front axle, drive axle housing, wheels (including steering wheel and driving wheel), suspension and other components.

Steering system-ensures that the car can run in the direction chosen by the driver, and consists of steering gear and steering gear of the steering wheel.

Braking device-slows down or stops the car and ensures that the car can stop reliably after the driver leaves. The braking equipment of each vehicle includes several independent braking systems, and each braking system consists of an energy supply device, a control device, a transmission device and a brake.

car body

The car body is the place where the driver works, and it is also the place where passengers and goods are loaded. The car body should provide convenient operating conditions for the driver, provide a comfortable and safe environment for passengers or ensure that the goods are intact.

Electrical equipment

Electrical equipment includes power pack, engine starting system and ignition system, automobile lighting and signal device. In addition, more and more electronic devices, such as microprocessors, central computer systems and various artificial intelligence devices, are installed in modern cars, which significantly improves the performance of cars.

In order to meet different use requirements, the overall structure and layout of cars are different. Generally speaking, according to the relative positions of installed engines and assemblies and different driving modes, the layout types of modern automobiles usually include the following:

Engine Front Rear Wheel Drive (FR)-This is a more traditional layout, generally used in trucks, but less used in cars and buses.

Engine Front Wheel Drive (FF)-This is the mainstream layout of automobiles at present. It has the advantages of compact structure, light weight, reduced floor height and improved high-speed handling stability.

Rear-wheel drive (RR) rear engine-This is the layout method adopted by most passenger cars, which has the advantages of reducing indoor noise and facilitating the interior layout of the car body.

Engine-mounted Rear Wheel Drive (MR)- Mainly used in sports cars and Formula Racing. Because this kind of car needs a very powerful engine, its engine size is also relatively large. Putting the engine behind the driver's seat and in front of the rear axle is beneficial to obtain the best axle load distribution and improve the performance of the car. This arrangement was adopted by the famous Gem Jie sports car.

All-wheel drive (NWD)- usually used by off-road vehicles. In this way, the engine is usually front-mounted, and a transfer case is installed behind the transmission to transmit power to each wheel respectively. But now some luxury cars have adopted this method, such as Audi A8 and so on.