What is the principle of a car driving on the highway?

[DelAugust]

Gasoline engines mix air and gasoline in a certain proportion to form a good mixture, which is drawn into the cylinder during the intake stroke. The mixture is compressed and ignited to generate thermal energy. The high-temperature, high-pressure gas acts on the top of the piston, pushing the piston in a linear reciprocating motion, and the mechanical energy is output externally through the connecting rod and crankshaft flywheel mechanism. A four-stroke gasoline engine completes one working cycle during the intake stroke, compression stroke, power stroke, and exhaust stroke. The engine outputs power, which is transmitted through the clutch, gearbox, drive shaft, main drive, differential, half-shaft, and drive wheels. The drive wheels then rotate to apply a force to the ground, and the ground gives the wheels a reaction force, known as traction, which propels the vehicle forward.