Optimal Control of a Semi-Active Tri-Axle Lorry Suspension

A vehicle model is developed that captures the dynamics of a semi-active tri-axle air-suspension system with load sharing between three axles. Linear control systems are designed for both 'modified skyhook damping' (MSD) and optimal full-state feedback (FSF) control. Non-linearities in the damping elements are modelled. The performance improvements of the control strategies are quantified by measuring the percentage reduction in dynamic body acceleration (BA) and dynamic tyre force (TF) compared to the optimal passive damping case. It is found that the FSF control offers the best theoretical performance when used with the non-linear damping element, achieving reductions relative to the optimum passive case of 38% in RMS BA and 20% in RMS dynamic TF. This optimum is found only when a gain amplification factor is added into the control loop.

• 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:
  • Roebuck, R L
  • Cebon, D
  • Dale, S G
• 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; Tables;
• Pagination: pp 892-903
• 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: Acceleration (Mechanics); Air suspension systems; Control devices; Feedback control; Linear control systems; Suspension systems; Three axle trucks; Tire forces; Trucks; Vehicle bodies
• Uncontrolled Terms: Semiactive damping
• Subject Areas: Highways; Motor Carriers; Vehicles and Equipment;

Filing Info

• Accession Number: 01046731
• Record Type: Publication
• ISBN: 9780415436168
• Files: TRIS
• Created Date: Apr 25 2007 1:46PM