What is the principle of electronic throttle controller?

The following is the principle of the electronic throttle controller: 1. When the driver suddenly accelerates (treads the pedal to the bottom) at the start, the ECU analyzes the current vehicle speed and the size of the throttle, and from the perspective of fuel economy and reasonable emission, it will appropriately limit the opening range of the throttle, and at the same time control the fuel injection system to limit the fuel injector to maximize fuel injection;

2. Doing so makes the driver feel that there is obviously a delay car after stepping on the throttle, which is the so-called throttle lag;

3. So the throttle lag is actually caused by ECU limiting the instantaneous power output of the engine. Of course, it also brings the benefits of fuel saving and environmental protection.

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