Title :
On-Board Diagnostics Calibration of Three-Way Catalyst on Engine Bench Experiment and Sedan Road Test by Using Pure LPG Fuel
Author :
Huang, Cheng ; Sun, Wei ; Liu, Yu ; Wen, Longze
Author_Institution :
State Key Lab. of Automobile Dynamic Simulation, Jilin Univ., Jilin, China
Abstract :
The borderline catalyst used to On Board Diagnostics (OBD) system was prepared by combined sedan road aging test and bench quickly aging experiment by using Liquefied Petroleum Gas (LPG) fuel. Two OBD diagnostics methods of three- way catalyst based on oxygen storage capability, dual oxygen sensor and rare oxygen sensor method, were compared using on engine bench experiment and integral sedan test by single LPG fuel. Results showed that these two diagnostics methods both accurately monitor oxygen storage capacity (OSC) of three-way catalyst and meet the requirements of OBD national standard.
Keywords :
calibration; engines; fuel systems; mechanical testing; petroleum; engine bench experiment; liquefied petroleum gas fuel; on-board diagnostics calibration; oxygen storage capacity; pure LPG fuel; sedan road test; three-way catalyst; Aging; Calibration; Engines; Exhaust systems; Fuels; Roads; Vehicles;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6253-7
DOI :
10.1109/APPEEC.2011.5748856
