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Engine speed sensor: the "ear and UEFA EUROeye" of the engine is inside the car, and each part plays a different role and works together to make the car run smoothly. The engine is the heart of the car, and the accurate speed of the engine is an important guarantee to ensure the safe driving of the car. In this regard, the engine speed sensor plays an extremely important role in the engine system. It is the "ear and eye" of the engine. The engine speed sensor is an electronic control induction element. It transmits the speed signal to the central processor of the vehicle computer by sensing the rotation speed of the engine, so that the electronic control system of the vehicle can process and judge. According to the speed sensor sent backSignal, the vehicle control system can monitor the operating status of the engine in real time, such as rotation speed, pedal position, etc. The engine speed sensor is usually installed on the crankshaft or camshaft of the engine. It detects the engine speed by sensing the pulse signal when the crankshaft rotates. Generally speaking, the speed sensor can ensure its normal operation through the self-test function, but if the sensor is damaged, it will bring a lot of trouble to the vehicle, such as the inability to start the vehicle, abnormal engine condition, emission exceeding the standard, etc. As one of the very important components of the car engine, the engine speed sensor plays a role: 1. Detecting the engine speed, the engine speed may be unstable or even suddenly stopped during the driving process of the car, and the engine speed sensor is added to the car engine to prevent this situation. Be equalWhen the speed sensor detects an abnormal speed of the engine, the vehicle control system will immediately issue an alarm and notify the owner in time to carry out relevant maintenance. Two. Judging the operating status of the engine By monitoring the rotation speed of the engine and other parameters, such as rotor position, fuel supply, ignition timing, fuel injection volume, etc., the vehicle control system can judge the operating status of the engine, so as to optimize the engine operation strategy in real time. 3. In addition to judging and maintaining the engine status, the engine speed sensor can also remind the driver's driving behavior in time. In some vehicles, when the vehicle speed exceeds a certain limit, the engine speed sensor will immediately send a warning signal to the vehicle's central processor, prompting the driver to adjust the speed to avoid safety accidents. In a word, the engine speed sensor is one of the indispensable parts in the automobile engine system.It can sense the working status of the engine, detect the engine speed in real time, use the speed information to judge the operating state of the engine, optimize the engine operation strategy, and provide timely guarantee for driving safety, which greatly improves the safety and reliability of the vehicle and is an important part of the automobile engine system.

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