What is the working principle of automobile throttle?

Throttles are generally divided into two categories: carburetor throttle and resistance throttle. Its working principle is different as follows: 1. The carburetor throttle regulates the engine speed by taking away gasoline. The larger the throttle is opened, the lower the speed is, and there is an air intake space beside it. When the throttle angle is large, the air pressure inside the engine is less than the air outside, and a part of it goes in from the small space next to it to take away the corresponding gasoline, that is, the smaller the throttle is, the more gasoline it takes away. 2. The resistance throttle uses different voltages to adjust the engine speed. Throttle is a control component that controls the intake of engine, and adjusts the mixing ratio of gasoline and gas according to computer signals, so that gasoline can be fully burned and power can be generated. Every time the driver steps on the accelerator, it is not oil, but "gas". By stepping on the accelerator and shifting gears, a certain amount of air is forced into the engine.