What is the principle of electronic throttle controller?

Throttle controller mainly realizes acceleration by improving the sensitivity of throttle response. When the system detects the driver's willingness to accelerate, the circuit will drive the throttle to open as soon as possible to improve the sensitivity of the throttle response. However, this does not mean that the accelerator controller will reduce the level of the accelerator pedal signal. In fact, the accelerator pedal signal is still infinitely adjustable. The principle of electronic throttle controller is as follows: 1. When the driver suddenly accelerates (steps on the bottom) at the start, ECU will analyze the current vehicle speed, throttle size and other factors, appropriately limit the throttle opening range from the perspective of fuel consumption and emission rationality, and control the fuel injection system to maximize the fuel injector. 2. In this way, the driver will obviously feel the delay of vehicle output after stepping on the accelerator, which is called throttle delay. 3. In fact, the throttle lag is caused by ECU limiting the instantaneous power of the engine, which can save fuel and protect the environment.