What is the principle of automobile movement?

The principle of automobile movement is that the engine burns the gasoline inside the automobile engine and converts the energy of gasoline into kinetic energy to drive the automobile to obtain kinetic energy. The four-stroke engine is described in detail below: 1. Classification: Four-stroke engines belong to reciprocating piston internal combustion engines, which are divided into three categories according to the types of fuels used: gasoline engines, diesel engines and gas fuel engines. Piston internal combustion engines that use gasoline or diesel as fuel are called gasoline engines or diesel engines respectively. Piston internal combustion engines that use natural gas, liquefied petroleum gas and other gaseous fuels are called gas fuel engines. Gasoline and diesel are both petroleum products, which are the traditional fuels of automobile engines. Non-petroleum fuels are called alternative fuels. Engines that burn alternative fuels are called alternative fuel engines, such as ethanol engines, hydrogen engines and methanol engines. 2. Working process: A four-stroke gasoline engine completes a working cycle through four strokes: intake, compression, work and exhaust. In this process, the piston reciprocates up and down, and the corresponding crankshaft rotates twice.