What are the four major systems of an automobile chassis?
1 Answers
The four major systems of an automobile chassis are the transmission system, the running system, the braking system, and the steering system. The transmission system generally consists of components such as the clutch, gearbox, universal transmission device, main reducer, differential, and half-shaft. The transmission system functions include deceleration, speed change, reverse, power interruption, inter-wheel differential, and inter-axle differential. Working in conjunction with the engine, it ensures the normal operation of the vehicle under various working conditions, providing good power performance and fuel economy. The running system is composed of the vehicle's frame, axle, wheels (note), and suspension. It has four main functions: integrating the vehicle into a whole and bearing the total weight of the vehicle; receiving power from the transmission system and generating traction through the interaction between the driving wheels and the road surface, enabling normal vehicle operation; bearing and transmitting various reaction forces and moments from the road surface acting on the wheels, mitigating impacts caused by uneven road surfaces on the vehicle body, damping vibrations during driving, and maintaining driving smoothness; working in coordination with the steering system to ensure vehicle handling stability. The steering system is a mechanism that allows the vehicle to turn according to the driver's will. During vehicle operation, frequent changes in direction, known as steering, are required. The role of the steering system is to convert the driver's steering wheel movements into the deflection of the wheels (usually the front wheels). The braking system consists of two main parts: the brake control mechanism and the brake. A series of specialized devices on a vehicle that apply a certain force to some parts of the vehicle (mainly the wheels) from the outside (mainly the road surface), thereby imposing a certain degree of forced braking, are collectively referred to as the braking system. Its functions include forcing a moving vehicle to decelerate or even stop as required by the driver; ensuring that a parked vehicle remains stationary under various road conditions (including on slopes); and maintaining a stable speed for a vehicle descending a slope.
