What is a car chassis generally composed of

An automobile chassis consists of four systems: the transmission system, the steering system, the drive system and the braking system. Without these four systems, the car can't move properly. The transmission system of an automobile consists of a transmission, a clutch, a universal transmission, a main reducer, a differential and a half shaft. The driveline transfers power from the engine to the wheels. Without the driveline, the car would not be able to move properly. The drive train consists of wheels, suspension, frame and axles. The suspension is a very important part of the chassis, and it serves to connect the wheels to the body. Without the suspension, the car would not be able to move properly. McPherson suspension, multi-link suspension, double wishbone suspension, double ball joint suspension are often encountered in automobiles. Non-independent suspensions often encountered in automobiles include torsion beam suspensions and integral bridge suspensions. The structure and adjustment of the suspension has a great impact on the handling stability and comfort of the car. The braking system is the brakes. The braking system of an automobile consists of brake pads, brake discs, brake master pump, brake sub-pump and vacuum booster pump. Brake pads and discs are wearing parts and need to be replaced regularly. When the braking system works, the brake pads and discs rub against each other, which can convert kinetic energy into heat. The brake system requires the use of brake fluid, which needs to be replaced regularly.