GM MICRO-COMPUTER ENGINE CONTROL SYSTEM
The General Motors microprocessor based Computer Controlled Catalytic Converter (C-4) system used on 1980 California vehicles and nationwide in 1981 is described. The basic system function is to maintain engine exhaust air-fuel ratio control so that oxidation and reduction characteristics of three-way catalytic converters can be effectively utilized. Control strategies and components used in the Closed Loop Carburetor Control function are reviewed.
- Also available from the National Highway Traffic Safety Administration in HS-031 180 (SAE-SP-477), "Implementation of Engine Control Strategies with Electronics," Warrendale, Pennsylvania, 1980, pp 45-60. Presented at SAE Congress and Exposition, Detroit, February 1980.
Warrendale, PA United States 15096
- Grimm, R A
- Bremer, R J
- Stonestreet, S P
- Publication Date: 1980
- Features: References;
- Pagination: 18 p.
- Society of Automotive Engineers Preprint
- Publisher: Society of Automotive Engineers (SAE)
- TRT Terms: Air quality management; Applications; Carburetors; Catalytic converters; Control; Exhaust gases; Feedback control; Fuel air mixtures; Loops (Control systems); Microprocessors; Sensors; Vehicle power plants
- Uncontrolled Terms: Air fuel ratio
- Old TRIS Terms: Automobile engines; Computers (Microprocessor); Exhaust emission control; Strategy
- Subject Areas: Highways; Research; Vehicles and Equipment;
- Accession Number: 00322895
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: SAE 800053, HS-031 183
- Files: HSL, TRIS
- Created Date: Jan 19 1983 12:00AM