AIR-FUEL RATIO CONTROL USING A SIMPLE MICRO-PROCESSOR

A control system is described which uses a simple micro-processor in conjunction with a control algorithm which utilizes engine speed and mass air flow to result in air/fuel ratio control plus/minus 0.5 A/F for the federal driving schedule. A comparison is made to conventional speed/density approach and the described micro-processor complexity is reduced; the memory requirements are halved; and the execution time is faster resulting in the possibility of assigning additional control task. /GMRL/

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Russell, J B
  • Nedbal, R G
• Publication Date: 1977-3-4

Media Info

• Pagination: 7 p.

Subject/Index Terms

• TRT Terms: Air; Algorithms; Computers; Control systems; Flow; Fuel air mixtures; Microcomputers
• Uncontrolled Terms: Air flow; Air fuel ratio
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00158428
• Record Type: Publication
• Report/Paper Numbers: SAE 770006
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM