TRANSIENT TIRE PROPERTIES

This paper identifies and analyzes steady-state and transient tire properties affecting vehicle directional response characteristics. The study is limited to the relationship between lateral force and slip angle. It shows fundamental differences between steady-state and transient properties. An interrelationship between cornering stiffness and dynamic lateral force offset resulting from the time lag between lateral force and slip angle is shown. Rapm steer techniques for measuring transient tire properties on a road trailer and on an external drum machine are described. A need for transient tire data for computer simulations of vehicle transient steer maneuvers is shown. Subjective evaluations of a vehicle equipped with different tires are described and compared with results of evaluations of 21 foreign and domestic vehicles. The significance to vehicle handling of tires having different characteristics, as determined by subjective evaluations in a lane change maneuver, is shown.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/HS014891
• Corporate Authors:

  Society of Automotive Engineers

  485 Lexington Avenue
  New York, NY  United States  10017
• Authors:
  • Bergman, W
  • Beauregard, C
• Publication Date: 1974-2

Media Info

• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Automated vehicle control; Data collection; Radial ply tires; Rolling contact; Simulation; Steering; Tires; Traction; Vehicle dynamics
• Uncontrolled Terms: Lateral loads; Slippage; Vehicle path
• Old TRIS Terms: Cornering (Vehicle); Radial tires; Sideslip
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00083413
• Record Type: Publication
• ISBN: HS 014 891
• Report/Paper Numbers: SAE #740068
• Files: TRIS
• Created Date: Apr 8 1975 12:00AM