The Development of Terrain Pre-filtering Technique Based on Constraint Mode Tire Model

The vertical force generated from terrain-tire interaction has long been of interest for vehicle dynamic simulations and chassis development. To improve simulation efficiency while still providing reliable load prediction, a terrain pre-filtering technique using a constraint mode tire model is developed. The wheel is assumed to convey one quarter of the vehicle load constantly. At each location along the tire's path, the wheel center height is adjusted until the spindle load reaches the pre-designated load. The resultant vertical trajectory of the wheel center can be used as an equivalent terrain profile input to a simplified tire model. During iterative simulations, the filtered terrain profile, coupled with a simple point follower tire model is used to predict the spindle force. The same vehicle dynamic simulation system coupled with constraint mode tire model is built to generate reference forces. This terrain pre-filtering technique proves to improve the computational efficiency by three orders of magnitude with no statistically significant change in resultant load prediction.

• Record URL:
  • https://doi.org/10.4271/2015-01-9113
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463995
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Ma, Rui
  • Chin, Philip
  • Ferris, John B
  • Cheng, Cannon
  • neisen, Eric
  • Reid, Alexander
• Publication Date: 2015-9-1

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1151-1159
• Serial:
  • SAE International Journal of Passenger Cars - Mechanical Systems
  • Volume: 8
  • Issue Number: 3
  • Publisher: SAE International
  • ISSN: 1946-3995
  • EISSN: 1946-4002
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-06/

Subject/Index Terms

• TRT Terms: Simulation; Terrain; Tires; Training simulators; Wheels
• Subject Areas: Highways; Passenger Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01791560
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2015-01-9113
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:12AM