Do you need an idle motor with an electronic throttle?

Electronic throttle without idle motor, electronic throttle without idle motor. There is a motor in the electronic throttle, but the idle speed and refueling are determined by controlling the opening of ECU. Its functions are:

1. When idling, change the cross-sectional area of idle air passage according to the engine temperature and load, so that the engine can have the best idle speed under different working conditions;

2. The idle motor is mainly used to bear the idle speed of the car, and its purpose is to adjust the idle speed according to the engine load during idle speed. Idle stepper motor is installed on the throttle body and used by the engine controller to control the idle speed of the engine. When the engine speed deviates from the idle speed, it is adjusted by the throttle valve to control the amount of air entering the intake manifold, which is mechanically operated by the accelerator pedal wire rope.

3. The throttle body has a bypass air passage to provide air when the engine is idling (when the throttle is closed). The pivot of the automatic idle motor extends into the bypass duct to adjust the air flow, and the engine controller adjusts the engine idle speed by moving the pivot of the automatic idle motor in and out of the bypass duct according to the input signals of various sensors;

4. When the ignition key is turned to the on position, the automatic idle motor starts to work. The switch signal is input to ECU to detect whether the engine is idling. At the same time, the instantaneous position of motor is fed back to ECU through motor position sensor.

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