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Features of ECU Controlled Throttle in Electronic Accelerator

Features of ECU Controlled Throttle in Electronic Accelerator

In the model of electronic throttle, when ECU controls the throttle, it will analyze the depth of the throttle and the vehicle condition, and finally calculate the appropriate throttle opening. When the driver starts to accelerate abruptly (press the pedal to the bottom), ECU will analyze according to the current speed, throttle size, etc. from the perspective of fuel economy and reasonable emissions, it will appropriately limit the throttle opening range, and control the fuel injection system to limit the maximum fuel injection.

In this way, the driver feels that there is obviously a delay when the accelerator is depressed before the car starts to work. This is called the accelerator hysteresis. Therefore, the throttle hysteresis is actually formed by the ECU by limiting the instantaneous power output of the engine. Of course, it also brings benefits: saving fuel and protecting the environment.

The electronic accelerator is not used to limit the power output of the engine. When the car starts running, if you quickly press / release the accelerator pedal 1 / 3 of the depth, you can feel the obvious refueling / fuel collection of the car, and its effect is almost equivalent to that of completely pressing / releasing the accelerator. Why? This is the case that ECU assists the driver to quickly speed up / slow down according to the current car conditions. Therefore, the ECU will help the driver to achieve the desired acceleration / deceleration operation according to the vehicle conditions, making it easier for the driver to operate the accelerator pedal.

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Shenzhen TROS Technology Co., Ltd.