Comprehensive customs ruling database

* EngineIntroduction to the control system: The Comprehensive customs ruling databasecore technology of new energy vehicles. With the increasing demand for environmental protection and energy, new energy vehicles have gradually become a hot topic today. Although electric vehicles, hybrid vehicles, etc. have made remarkable progress, traditional fuel engines are still the mainstream power source of automobiles. In order to reduce fuel consumption and emissions, the engine control system has gradually become one of the core technologies of new energy vehicles. The engine control system refers to a series of sensors, controllers, valves, actuators and other components used to measure and adjust the engine's fuel/air mixture, ignition period, intake airflow, emission control and other related parameters. The engine control system aims to maintain the best performance and efficiency of the engine while minimizing pollutant emissions. The engine control system is mainly composed of the following components: 1.Engine Control Module (ECM): The engine control module is the core component of the engine control system. It receives the engine parameters monitored by various sensors and controls fuel injection, ignition timing and other data according to the program logic algorithm to achieve precise control of the engine. Two. Oxygen sensor (O2 sensor): The oxygen sensor monitors the oxygen content in the exhaust so that the engine control module can determine whether the concentration of the fuel/air mixture is correct. Once the fuel/air ratio is out of range, the O2 sensor will send a signal to ECM to prompt ECM to adjust the amount of fuel injection. 3. Atmospheric pressure/intak temperature sensor: The atmospheric pressure/inlet temperature sensor determines the air density entering the engine, so that the engine control module can calculate the amount of fuel injection and the timing of ignition. Four. NodeValve position sensor: The throttle position sensor detects the position of the throttle valve so that ECM can determine the amount of intake airflow. 5. Ignition controller and ignition coil: The ignition controller ensures that the ignition timing is accurate, and the ignition coil transmits high-voltage current to the spark plug for ignition. In addition to the above basic components, the modern engine control system also includes more advanced technologies such as variable valve technology, direct injection technology, automotive diagnostic interface (ODBDII), fault indicator light and so on. Advantages of the engine control system The main advantage of the engine control system is to enhance the reliability, fuel economy and emission efficiency of the engine. Accurately measuring and controlling the fuel/air mixing ratio can reduce fuel consumption and exhaust emissions while ensuring the best performance, so that it can better adapt to the requirements of environmentally friendly cars and contribute to reducing global greenhouse gas emissions.Moreover, these sensors and controllers can sense and diagnose engine failures in time, detect and correct engine problems early, and improve the reliability and safety of cars. In general, the engine control system is the core technology necessary for the development of new energy vehicles. Its increasing technological maturity and popularization will help improve the reliability, economy and safety of new energy vehicles, and play an important role in promoting the development of new energy vehicles.

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