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What is the Function of the Chassis?

1 Answers

NadiaFitz

07/30/25 2:12am

The chassis serves to support and install the automobile engine and its various components and assemblies, forming the overall shape of the vehicle. It receives the power from the engine to enable the vehicle to move and ensure normal operation. The chassis consists of four main parts: the transmission system, the running gear, the steering system, and the braking system. Below is a detailed introduction: 1. Transmission System: The transmission system generally includes the clutch, gearbox, universal transmission device, final drive, differential, and half-shafts. The power generated by the automobile engine is transmitted to the driving wheels through the transmission system. The transmission system functions to reduce speed, change gears, reverse, interrupt power, provide inter-wheel and inter-axle differentials, etc. Working in conjunction with the engine, it ensures the normal operation of the vehicle under various working conditions, offering good power performance and fuel economy. 2. Running Gear: The running gear consists of the vehicle's frame, axles, wheels (note), and suspension. 3. Steering System: The specialized mechanism used to change or restore the vehicle's direction of travel is called the automobile steering system. Based on the source of steering power, steering systems can be divided into two main categories: manual steering systems and power steering systems. 4. Braking System: A series of specialized devices on a vehicle used to apply a certain force from the external environment (mainly the road surface) to certain parts of the vehicle (mainly the wheels) to achieve a certain degree of forced braking is collectively referred to as the braking system. Its functions are: to forcibly decelerate or even stop a moving vehicle as required by the driver; to keep a stationary vehicle stable under various road conditions (including on slopes); and to maintain a stable speed for a vehicle moving downhill.

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