Chassis as a key component of the car, bear the vehicle support, suspension, cushioning and shock absorption and other tasks, for the vehicle’s performance and handling has an important impact.

First, the structure of the vehicle chassis: the vehicle chassis is usually composed of transmission system, traveling system, steering system and braking system.

1. Transmission system: the transmission system is an important part of the vehicle, which transmits the power from the engine to the wheels to produce driving force. The transmission system includes transmission, drive shaft and half shaft and other components. 

2. Traveling System: The traveling system is the supporting part of the vehicle, which carries the weight of the whole vehicle and enables the vehicle to travel on the road. The travel system includes the frame, axle and tires. 3. steering system: the steering system is the control part of the vehicle, which enables the vehicle to steer according to the driver’s wishes. The steering system includes components such as steering wheel, steering gear and wheels. 4. braking system: the braking system is the safety part of the vehicle which enables the vehicle to slow down or stop while traveling. Braking system includes components like brake pedal, brake pump, brake pads etc.

Second, functions of Vehicle Chassis—Vehicle chassis has the following main functions: 1. carrying weight: the vehicle chassis carries the weight of the entire vehicle, including the body, engine, seats, cargo and so on. 2. Provide stability: the vehicle chassis has stability, can maintain the balance of the vehicle in traveling, to avoid rollover or out of control.

3. realize steering: the steering system of the vehicle chassis enables the vehicle to steer according to the driver’s wishes. 4. Provide comfort: the suspension and damping system of the vehicle chassis can reduce vibration and noise, providing a comfortable driving experience. 5. Realize braking: the braking system of the vehicle chassis can make the vehicle slow down or stop in driving, providing safety.

Third, the vehicle chassis maintenance: in order to maintain the normal operation of the vehicle chassis and extend its service life, the need for regular maintenance. 1. Check the tires: Regularly check the tire pressure, wear and cracks, etc. to ensure that the tires can run normally. 2. check the suspension system: regularly check the wear and tear of the suspension system, and replace it in time if it is found to be badly worn.

3. Check the shock absorbers: check the wear and tear of the shock absorbers regularly and replace them in time if they are found to be badly worn. 4. Check the braking system: check the braking system regularly for wear and tear, and replace it if it is found to be badly worn. 5. Clean the chassis: regularly clean the chassis to avoid corrosion or rust.

In short, the vehicle chassis is an important part of the car, for the performance and safety of the vehicle has an important impact. Vehicle owners should carry out regular chassis maintenance to ensure the normal operation of the vehicle and extend its service life. At the same time, in the driving process, drivers should pay attention to road conditions, avoid excessive acceleration or harsh braking and other behaviors to protect the integrity of the vehicle chassis.