EGR System Diagnostics to Meet CHINA Ⅵ Emission Regulations
EGR technology as a kind of effective method to reduce Nox emissions is widely used.The normal operation of EGR system directly affects the emission effect of engine.CHINA Ⅵ requires oBD(on-board diag-nostic system)to monitor EGR system failures.In this paper,EGR system diagnosis function satisfied the re-quirement of CHINA Ⅵ and its principle were introduced,which provide reference for engine electronic control system diagnosis strategy development.
Engine electronic control systemEGR systemDagnosis