TEMPERATURE SENSITIVITY MAPPING OF THE ZIRCONIA OXYGEN SENSOR: ENGINE TEST RESULTS

Temperature sensitivity of the oxygen sensor was measured over a wide range of engine operating conditions. Sensor data were plotted in the form of contour lines of constant sensor voltage as a function of engine air-fuel ratio and exhaust temperature, thereby mapping sensor performance. It was found that, depending on the sensor, a fixed level of sensor voltage shifted from 0.1 to 0.7 ratios towards air-fuel ratios slightly rich of the stoichiometric ratio as exhaust temperature incrased from 500 degrees C to 700 degrees C. /GMRL/

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • FLEMING, W J
• Publication Date: 1976-2

Media Info

• Pagination: 5 p.

Subject/Index Terms

• TRT Terms: Engines; Exhaust gases; Fuel air mixtures; Mapping; Oxygen; Ratios; Sensitivity; Sensors; Stoichiometry; Temperature; Temperature sensors; Zirconium
• Uncontrolled Terms: Air fuel ratio; Data
• Subject Areas: Geotechnology; Highways; Materials; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00139744
• Record Type: Publication
• Report/Paper Numbers: SAE #760379
• Files: TRIS
• Created Date: Oct 6 1976 12:00AM