Advertisement

Rollover mitigation for a heavy commercial vehicle

  • Y. I. Ryu
  • D. O. Kang
  • S. J. Heo
  • J. H. In
Article

Abstract

A heavy commercial vehicle has a high probability of rollover because it is usually loaded heavily and thus has a high center of gravity. An anti-roll bar is efficient for rollover mitigation, but it can cause poor ride comfort when the roll stiffness is excessively high. Therefore, active roll control (ARC) systems have been developed to optimally control the roll state of a vehicle while maintaining ride comfort. Previously developed ARC systems have some disadvantages, such as cost, complexity, power consumption, and weight. In this study, an ARC-based rear air suspension for a heavy commercial vehicle, which does not require additional power for control, was designed and manufactured. The rollover index-based vehicle rollover mitigation control scheme was used for the ARC system. Multi-body dynamic models of the suspension subsystem and the full vehicle were used to design the rear air suspension and the ARC system. The reference rollover index was tuned through lab tests. Field tests, such as steady state cornering tests and step steer tests, demonstrated that the roll response characteristics in the steady state and transient state were improved.

Key Words

Active roll control Air suspension Anti-roll bar Ride comfort Rollover index Rollover mitigation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Cebon, D. J. M. Sampson (1998). An investigation of roll control system design for articulated heavy vehicles. Proc. AVEC98, 311–316.Google Scholar
  2. Daring, J. and Martin, T. J. (1997). A theoretical investigation of a prototype active roll control system. Proc. Instn. Mech. Engrs., 211, 3–12.CrossRefGoogle Scholar
  3. Gillespie, T. D. (1992). Fundamentals of Vehicle Dynamics. Warrendale. PA. Society of Automotive Engineers.Google Scholar
  4. Stone, E. and Cebon, D. (2002). A preliminary investigation of semi-active roll control. 6th Int. Symp. Advanced Vehicle Control, AVEC2002.Google Scholar
  5. Yoon, J., Yi, K. and Kim, D. (2006). Rollover index-based rollover mitigation control system. Int. J. Automotive Technology 7,7, 821–826.Google Scholar

Copyright information

© The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Y. I. Ryu
    • 1
  • D. O. Kang
    • 1
  • S. J. Heo
    • 2
  • J. H. In
    • 3
  1. 1.Graduate School of Automotive EngineeringKookmin UniversitySeoulKorea
  2. 2.School of Mechanical and Automotive EngineeringKookmin UniversitySeoulKorea
  3. 3.NewTech T&MGyeonggiKorea

Personalised recommendations