A practical and effective approach to active suspension control

A new approach to the control of Automotive Active Suspensions driven by electrohydraulic actuators is presented. Many studies on Active Suspensions focused on implementing a desired force between sprung and unsprung masses. It is shown why the introduction of this controllable force is difficult to achieve. A novel reformulation of the Active Suspension problem, based on prescribing a given displacement between the sprung and unsprung masses, is introduced and the advantages of this approach are discussed. As a result of the reformulation, the Active Suspension problem is transformed from previously examined 'force-tracking' problems to a 'displacement-tracking' problem. Once the reformulation is accomplished, the ability for a well designed servo-control methodology to achieve the desired tracking goals is increased for the particular hardware configuration considered in this work, subject to fundamental limitations on control-plant structure. Experimental results which demonstrate the benefits of this approach are presented on a 1 degree of freedom (DOF) system. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00423114
• Authors:
  • ZHANG, Y
  • ALLEYNE, A
• Publication Date: 2005-5

Language

• English

Media Info

• Pagination: 305-30
• Serial:
  • Vehicle System Dynamics
  • Volume: 43
  • Issue Number: 5
  • Publisher: Taylor & Francis
  • ISSN: 0042-3114
  • EISSN: 1744-5159
  • Serial URL: https://www.tandfonline.com/toc/nvsd20/current

Subject/Index Terms

• TRT Terms: Control; Design; Hydraulics; Suspension systems
• ITRD Terms: 3874: Control; 9011: Design (overall design); 5431: Hydraulics (fluid); 1329: Suspension (veh)
• Subject Areas: Design; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01013738
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 22 2005 11:19AM