Traditional Culture Encyclopedia - The 24 Solar Terms - What are the structural forms of throttle position sensor for hybrid electric vehicle?
What are the structural forms of throttle position sensor for hybrid electric vehicle?
There are three kinds of throttle position sensors: linear, switch and integrated, which have both switch and linear variable resistance. The throttle position sensor is installed on the throttle body and linked with the throttle. Inside the throttle position sensor is a sliding potentiometer whose sliding contact is driven by the throttle shaft. The resistance of potentiometer is different with different throttle opening, so the throttle opening is converted into resistance or voltage signal and transmitted to microcomputer.
Through the throttle position sensor, the microcomputer can obtain the analog signal representing the continuous change of all throttle openings from fully closed to fully open, and the change rate of throttle opening, so as to judge the working condition of the engine more accurately and improve the control accuracy and effect. In order to accurately detect the fully closed throttle signal in idle state, the integrated throttle position sensor has an idle contact. When the throttle valve is completely closed, the idle output contact is turned on and the sensor outputs an idle signal. At this time, the ECU will instruct the fuel injector to increase the fuel injection quantity to enrich the mixture.
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