Study of Torque Vectoring for All-Wheel-Drive Vehicles

This article presents a novel approach to the control of modern torque-vectoring differentials based on the concept of Beta-angle minimization. Three case studies include two variants of a base case model; with three open differentials, a 70/30-30/70 switchable centre differential with open front and rear and a fully left-to-right vectoring front and rear differential capable of any ratio of torque distribution (the centre differential is left open). All three are examined as they progress through an ISO double-lane change manoeuvre. Beta-angle control was chosen because one attribute of a nimble car is its ability to accelerate through a double-lane change manoeuvre without excessive magnitude or oscillation (so-called fish-tailing) in vehicle beta-angle. Each increase in the complexity of torque vectoring demonstrated a significant reduction in the magnitude of beta-angle witnessed during the manoeuvre. As torque vectoring can also be employed to enhance yaw dynamics, the simulations were performed in such a manner as to produce nearly identical paths between the three models; this allowed the direct affect on beta-angle to be understood without the added complexity of considering active yaw control influences.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780415436168
• Supplemental Notes:
  • Abstract reprinted with permission from Taylor and Francis.
• Corporate Authors:

  Taylor & Francis

  4 Park Square, Milton Park
  Abingdon,   United Kingdom  OX14 4RN
• Authors:
  • Croft-White, M
  • Harrison, M
• Conference:
  • 19th Symposium of the International Association for Vehicle System Dynamics
  • Location: Milan , Italy
  • Date: 2005-8-28 to 2005-9-2
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 313-320
• Monograph Title: Proceedings of the 19th Symposium of the International Association for Vehicle System Dynamics
• Serial:
  • Vehicle System Dynamics
  • Volume: 44
  • Issue Number: Supplement
  • Publisher: Taylor & Francis
  • ISSN: 0042-3114
  • EISSN: 1744-5159
  • Serial URL: https://www.tandfonline.com/toc/nvsd20/current

Subject/Index Terms

• TRT Terms: Differentials (Gears); Lane changing; Motor vehicles; Simulation; Torque; Vector analysis; Vehicle dynamics; Yaw
• Uncontrolled Terms: All wheel drive
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01046823
• Record Type: Publication
• ISBN: 9780415436168
• Files: TRIS
• Created Date: Apr 25 2007 1:46PM