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What is a car composed of?

3 Answers
Gale
08/31/25 4:45am
An automobile consists of four fundamental components: the engine, chassis, body, and electrical equipment. Below is a detailed introduction to these components: Engine: The engine serves as the power unit of a car. Currently, most vehicles employ reciprocating piston internal combustion engines, which typically comprise the crankshaft-connecting rod mechanism, valve train, fuel supply system, cooling system, lubrication system, ignition system, and starting system. Chassis: The automobile chassis forms the foundation for vehicle assembly and operation. Its primary function is to receive power from the engine, convert the engine's rotational motion into the car's horizontal movement, and ensure the vehicle operates correctly according to the driver's controls. Body: The car body provides the workspace for the driver and accommodates passengers and cargo. It should offer convenient operating conditions for the driver and ensure a comfortable, safe environment for passengers or the secure transportation of goods. Electrical Equipment: Automotive electrical equipment is used for engine starting, ignition, lighting, signal lights, and monitoring devices such as gauges. The electrical system includes the power supply system, starting system, ignition system, lighting devices, signal devices, instruments, and various electronic components. These electronic components encompass engine control systems, transmission control systems, anti-lock braking systems (ABS), airbags, and more, all of which significantly enhance vehicle performance.
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DiEdward
09/12/25 8:04am
A car is like a large machine that requires many key components to function properly. At its core is the engine, responsible for burning gasoline or diesel to generate power. The transmission then transfers this power to the wheels, enabling the vehicle to move. The chassis and suspension system support the entire body, including springs and shock absorbers, ensuring a smooth and stable ride. The steering system allows the driver to control direction via the steering wheel, while the braking system uses calipers and brake discs to slow down and ensure safety. Modern cars also rely on electronic components, such as the battery that powers the vehicle and the ECU (Engine Control Unit) that intelligently manages the engine and emissions. Additionally, aerodynamic body design reduces wind resistance, improving efficiency. All these systems work together to make the car reliable and environmentally friendly. Based on my experience, regular maintenance and inspection of these components can extend their lifespan and minimize breakdowns.
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Dean
10/27/25 2:05am
I've been repairing cars for many years. The basic components of a car include the engine, transmission, chassis system, electronic modules, and body. The engine generates power; the transmission converts speed through clutches or gears; the chassis with suspension balances body vibrations; the electronic part has a battery to start the engine and an onboard computer to diagnose faults; the body is covered with steel or composite materials for protection. Common maintenance issues like battery aging, tire wear, or brake disc overheating can affect safety. Regular checks of fluid levels and part replacements are crucial. If a component is damaged, don't delay repairs—I've seen too many accidents stemming from minor oversights.
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