电控发动机用液位传感器与ECU匹配方法研究

Research of Matching Method between Sensor of Electronically Controlled Engine and ECU

随着发动机电控技术发展及用户需求提高,水位传感器、机油液位传感器、燃油液位传感器、尿素液位传感器等液位传感器需求越来越多。发动机电控单元(ECU)采集各种液位传感器信号,采集的信号是否正确,信号处理及数据标定是否正确,关系发动机是否可以正常运行。本文详细阐述发动机上各种液位传感器与ECU匹配方法,为液位传感器电路设计、ECU电路设计、软件设计及数据标定提供一定的指导。

With the development of engine electronic control technology and the increase of user demand,water level sensor,oil level sensor,fuel level sensor,urea level sensor and other liquid level sensors demand more and more.The electronic control unit(ECU)collects various level sensor signals.Whether the collected signals are correct,whether the signal processing and data calibration are correct,is related to whether the engine can run normally.This paper describes in detail the matching methods of engine level sensors and ECU,which provides some guidance for the circuit design of level sensor,ECU circuit design,software design and data calibration.