REQUIREMENTS FOR CUSTOMER BENEFITS AND SYSTEM SAFETY FOR CHASSIS CONTROL SYSTEMS

This paper considers suspension control systems and their benefits for vehicle users, and also discusses their safety monitoring. Suspension control systems can be classified into those which primarily (1) act in the longitudinal direction of traffic; (2) influence lateral vehicle dynamics; and (3) determine vertical vehicle dynamics. Conventional suspension systems are compared with systems using advanced technology, to illustrate how system safety requirements increase with rising efficiency. This comparison uses examples of: (1) four-wheel drive; (2) four-wheel steering; and (3) shock absorber adjustment. 'Customer benefit' from suspension control systems is defined, and the additional customer benefits of the following BMW systems are compared with conventional systems: (1) the BMW four-wheel drive series system; (2) the BMW AHK system; and (3) the EDC III system. For almost every conventional suspension control system, there is a much more complex version that also offers significantly more customer benefit. The end of the paper investigates the implications of these differences in system configuration for system reliability by considering safety monitoring in: (1) the BMW 525iX; (2) the BMW AHK system; and (3) the BMW EDC III system. For the covering abstract see IRRD 867146.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 125-35

Subject/Index Terms

Filing Info

  • Accession Number: 00671186
  • Record Type: Publication
  • Source Agency: TRL
  • ISBN: 1-56091-267-7
  • Files: ITRD
  • Created Date: Jan 24 1995 12:00AM