TIRE MODELING FOR LOW-SPEED AND HIGH-SPEED CALCULATIONS

With the advent of serious attention to driving simulators, low speed tire modelling has become more important. This presents a numerical challenge to traditional formulations for longitudinal slip and slip angle. This paper presents a new formulation which differs from previous work in that both longitudinal slip and slip angle become state variables rather than kinematic functions of wheel spin rate and wheel velocity. The result is a model which: (1) yields traditional solutions at high speed; and (2) which comes to a stop in a reasonable way without numerical problems. The calculated longitudinal slip and slip angle can be paired with any semi-empirical tire model. Several challenging examples, including braking-induced spinout ending in a stop on a severely inclined surface, illustrate the power of the new technique. For the covering abstract of the conference see IRRD 875861.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1560916249
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • BERNARD, J E
  • CLOVER, C L
• Publication Date: 1995-2

Language

• English

Media Info

• Features: References;
• Pagination: p. 85-94
• Serial:
  • SAE PUBLICATION SP 1074. NEW DEVELOPMENTS IN VEHICLE DYNAMICS, SIMULATION, AND SUSPENSION SYSTEMS (SAE TECHNICAL PAPER 950311)
  • Publisher: Society of Automotive Engineers (SAE)

Subject/Index Terms

• TRT Terms: Braking; Calculation; Conferences; Force; Mathematical models; Rolling contact; Simulation; Speed; Tires
• ITRD Terms: 1874: Braking; 6464: Calculation; 8525: Conference; 5440: Contact (tyre road); 5421: Force; 6473: Mathematical model; 9103: Simulation; 5408: Speed; 1381: Tyre
• Subject Areas: Data and Information Technology; Vehicles and Equipment;

Filing Info

• Accession Number: 00719815
• Record Type: Publication
• Source Agency: Institute for Road Safety Research, SWOV
• ISBN: 1-56091-624-9
• Files: ITRD
• Created Date: Apr 26 1996 12:00AM