How Does a Sedan Work?

[OMaria]

The working principle of a sedan involves the ECU (Engine Control Unit) injecting fuel to generate a high-voltage coil, which then supplies high-voltage electricity to the spark plugs. The mixture of gasoline and air is ignited by the spark plugs, creating an explosion that drives the spark plugs. This ignition and subsequent explosion generate power, which is transmitted through the belt to rotate the wheels, enabling the vehicle to move. A car consists of four fundamental components: the engine, chassis, body, and electrical equipment. Engine: The engine is the power unit of the car. Its function is to combust fuel to generate power, which is then transmitted through the drivetrain in the chassis to drive the wheels and propel the car. Engines are mainly of two types: gasoline and diesel. A gasoline engine comprises the crankshaft-connecting rod mechanism, valve train, fuel supply system, cooling system, lubrication system, ignition system, and starting system. Diesel engines, on the other hand, use compression ignition and thus lack an ignition system. Chassis: The chassis supports and mounts the engine and other components, forming the overall structure of the car. It receives power from the engine to enable movement and ensure smooth operation. The chassis consists of four parts: the drivetrain, running gear, steering system, and braking system. Body: The body is mounted on the chassis frame and serves to accommodate the driver, passengers, or cargo. Sedans and buses typically feature a unitary body structure, while trucks usually consist of a cab and a cargo compartment. The body is mounted on the chassis frame and serves to accommodate the driver, passengers, or cargo. Sedans and buses typically feature a unitary body structure, while trucks usually consist of a cab and a cargo compartment. Electrical Equipment: This system provides power for starting, driving, and auxiliary car facilities. It mainly includes the power supply, starting system, ignition system, as well as car lighting, signaling, and auxiliary electrical components.