How does the electronic throttle control the idle speed?

Idle speed means that the engine runs with no load, overcomes the friction resistance of its internal components and does not output to the outside. The lowest speed to keep the engine running stably is called idle speed, which is one of the five basic working conditions of the engine. The idle speed of an engine with good working performance is usually 550-800 rpm. The electronic throttle of the car cannot be adjusted to control the idle speed. It is that each sensor sends instructions to the computer information computer to control the fuel injection time. The throttle screw is used for limiting, but the idle speed can be adjusted. That's the adjusted throttle opening, so adjusting screws are not recommended. Look at the idling motor. Meaning of electronic throttle: 1. Electronic throttle is an important control part of automobile engine, which consists of engine, speed sensor and throttle. 2. Electronic throttle can not only accurately control the throttle opening, improve fuel consumption and reduce emissions, but also obtain satisfactory handling performance; 3. On the other hand, the integration of idle speed control, cruise control and vehicle stability control is realized, and the structure of the control system is simplified.