FOCUS ON CV RUNNING GEAR: FOUNDATION BRAKE AND ACTUATION SYSTEM TRENDS

This article surveys current foundation brake and actuation system trends for commercial vehicles (CVs). CV braking trends are characterised by moves to extend air disc braking to the lower gross vehicle weight (GVW) ranges and moves to introduce electronic actuation; several electronic brake systems have been developed. The IRTE recently published a new code for the braking compatibility of truck-trailer combinations, which allows for the fact that the largest proportion of braking applications is at low pressures. Five combinations are involved, and tests show that good braking compatibility depends on the relative differences in thresholds between axles rather than the absolute values of individual thresholds. CV suspension developments are perceived to be continuing the trend towards more road-friendly systems and the potential benefits of electronic control. They include a 'Design and Calculation' manual for CV air springs, using a computation method based on the use of characteristic curves and a new rubber road-friendly suspension. Coupling systems for tractor-truck and trailer combinations are being designed to meet the changing legislative requirements of the European Union (EU), which aim for harmonisation across national boundaries.

  • Availability:
  • Corporate Authors:

    Institution of Mechanical Engineers

    1 Birdcage Walk
    London SW1H 9JJ,   England 
  • Publication Date: 1995

Language

  • English

Media Info

  • Pagination: p. 30-1,33,35-8,40
  • Serial:
    • AUTOMOTIVE ENGINEER
    • Volume: 20
    • Issue Number: 4
    • Publisher: Institution of Mechanical Engineers
    • ISSN: 0307-6490

Subject/Index Terms

Filing Info

  • Accession Number: 00720019
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Apr 26 1996 12:00AM