Title :
OBD System Oxygen Sensor Degradation Monitoring and Mechanism Analysis
Author :
Dongliang, Wang ; Kaisheng, Huang ; Wei, Liu ; Zhihua, Lin ; Yinhui, Wang
Author_Institution :
State Key Lab. of Automotive Safety & Energy, Tsinghua Univ., Beijing, China
Abstract :
This paper designs the diagnosis strategy for OBD system oxygen sensor degradation and the relevant test on engine bench is made by oxygen signal generator. The engine emission influence due to oxygen sensor degradation is analysed. Based on the structure and sensing principle of zirconia type oxygen sensor, the mechanism of oxygen sensor deterioration is analysed, and some proposals are put forward to prevent oxygen sensor degradation.
Keywords :
chemical sensors; condition monitoring; engines; OBD system oxygen sensor degradation monitoring; engine emission; global automotive quantities; mechanism analysis; oxygen signal generator; Degradation; Engines; Exhaust systems; Fault diagnosis; Heating; Monitoring; Oxygen; Degradation monitoring; Oxygen Sensor; Zirconia solid electrolyte;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.469
