What is the relevant knowledge about the chassis?
3 Answers
Automobile chassis is composed of four major systems: transmission system, running system, steering system and braking system. Introduction to chassis: The function of the chassis is to support and install the automobile engine and its various components and assemblies, form the overall shape of the automobile, receive the power of the engine, make the automobile move, and ensure normal driving. Introduction to the four major systems: The transmission system is generally composed of clutch, transmission, universal transmission device, main reducer, differential and half shaft. The power generated by the automobile engine is transmitted to the driving wheels through the transmission system. The transmission system has the functions of deceleration, speed change, reversing, power interruption, inter-wheel differential and inter-axle differential. Working in coordination with the engine, it can ensure the normal driving of the automobile under various working conditions, and has good power and economy. The function of the running system is to support and install various parts and assemblies of the automobile, transmit and bear various loads on and off the vehicle, so as to ensure the normal driving of the automobile. The steering system is composed of steering wheel, steering gear, steering knuckle, steering knuckle arm, tie rod, straight rod, etc., and its function is steering. The braking system is the braking performance of the motor vehicle, which refers to the effectiveness of the vehicle to stop forcibly in the shortest time.
I've been in the automotive repair industry for many years. The chassis is essentially the skeleton of a vehicle, supporting the entire body and connecting all components into a unified structure. It mainly consists of the frame, suspension system, steering mechanism, and braking components. The frame acts like a backbone, bearing the weight; the suspension includes shock absorbers and springs to absorb bumps and ensure a comfortable ride; the steering system allows for flexible turns; and the braking components guarantee safe stopping. During maintenance, I routinely check for loose chassis bolts and aging rubber bushings, as such wear can lead to unusual noises or handling issues. Especially on uneven roads, a sturdy chassis minimizes sway and enhances the driving experience. Long-term neglect can result in rust or component failure, potentially causing accidents, so I recommend having a professional inspect the chassis condition every six months.
As an average car owner, I find chassis knowledge highly practical for daily driving. The core function of the chassis is to ensure stable movement, smooth steering, and reliable braking. A good suspension system absorbs shocks on rough roads without causing discomfort; faulty steering components make turning difficult; and brake system failures dangerously increase stopping distance. I believe chassis maintenance directly impacts safety and comfort—like rinsing the undercarriage during car washes to prevent rust, or regularly inspecting dust boots to protect steering components. If the car body sways while driving, it may indicate suspension issues requiring prompt repair. Understanding these aspects gives me more confidence on the road and helps avoid unnecessary repair costs.
