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ON-BOARD DIAGNOSTICS FOR EMISSION CONTROL SYSTEMS
Annotation ability available
Sector:
Event:
Government/Industry Meeting
Language:
English
Abstract
The introduction of Electronic Controls on engines in the late 1970's brought about many changes in the auto industry. One major change was the inclusion of a sophisticated diagnostic system, resident in the controller that allowed it to monitor itself and the system it controls. General Motors introduced On-Board Diagnostics on all of its closed-loop fuel control systems in 1980 and has continued to enhance and refine the diagnostic system each succeeding year. This paper presents a brief history of On-Board Diagnostics, the strategy behind the diagnostics and the benefits of diagnostics to maintaining control of vehicle emissions and aiding in the service process.
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Topic
Citation
Kotzan, J., "ON-BOARD DIAGNOSTICS FOR EMISSION CONTROL SYSTEMS," SAE Technical Paper 911215, 1991, https://doi.org/10.4271/911215.Also In
References
- Carlson, Richard R. “Final Report Characteristics and Impact of Electronic Automotive Emission Control Systems” ARB Contract No. A0-144-32 December 1982
- Carlson, Richard R. “Final Report Characteristics and Impact of Electronic Automotive Emission Control Systems” ARB Contract No. A0-144-32 December 1982 1 5
- California Air Resources Board “California Exhaust Emission Standards and Test Procedures for 1981 and Subsequent Model Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles” California Administrative Code October 2 1985
- California Air Resources Board Mailout #89-25 July 18 1989 1
- Haskew H. M. Gumbleton J. J. Garrett (GM) D. P. “I/M Effectiveness with Today's Closed Loop Systems” SAE 871103 Government/Industry Meeting and Exposition Washington, DC May 18-21 1987
- Haskew H. M. Garrett D. P. Gumbleton (GM) J. J. “GM's Results - The EPA/Industry Cooperative Test Program” SAE 890185 International Congress and Exposition Detroit, Michigan February 27 March 3 1989
- California Air Resources Board Mailout #91-01 January 3 1991
- Armstrong J. Brzezinski D. Landman L. Glover E. “Inspection/Maintenance in the 1990's” SAE 870621 International Congress and Exposition Detroit, Michigan February 22-27 1987