DEVELOPMENT OF THE VOLVO LAMBDA-SOND SYSTEM

Volvo has developed the first production emission control system to fully utilize a three-way catalyst. Called the "Volvo Lambda-sond system", it is applied to the 4-cyclinder in-line B21 engine, and employs three essential new components--an exhaust gas composition sensor, an additional feed-back loop to the continuous fuel injection system, and the catalyst. Outstanding certification results were achieved, expecially for NOX, combined with good driveability, power output, and fuel economy. The development and performance of the system, and the test procedures used, are described in detail, and its future potential and limitations are discussed. /GMRL/

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Engh, G T
  • WALLMAN, S
• Publication Date: 1977-3

Media Info

• Pagination: 17 p.

Subject/Index Terms

• TRT Terms: Air quality management; Catalysts; Exhaust gases; Feedback control; Fuel consumption; Fuel injection; Handling characteristics; Nitric oxide; Nitrogen oxides; Sensors; Test procedures
• Uncontrolled Terms: Feedback; Handling
• Subject Areas: Energy; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00158415
• Record Type: Publication
• Report/Paper Numbers: SAE 770295
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM