Influence of Chassis Control Systems on Vehicle Handling and Rollover Stability

In this paper the influence of active chassis systems, in particular Electronic Stability Control (ESC) and Active Rear Steer (ARS), on vehicle limit handling and rollover stability is examined through vehicle testing. Effectiveness of ESC systems in influencing rollover stability in the National Highway Traffic Safety Administration (NHTSA) dynamic rollover test is first evaluated. Since there is no generally accepted objective and repeatable procedure for evaluating and quantifying vehicle handling as it relates to safety, a process of developing such a test procedure is described. Vehicle handling tests used in the automotive industry are briefly reviewed. The criteria used for selection of maneuvers that show the best potential and can characterize these aspects of handling, which affect safety, are described. A subset of the most promising maneuvers is selected. A step steer maneuver and an open loop maneuver with steering reversal are further developed through simulations and vehicle testing. A preliminary handling metric is described, which balances the aspects of handling influencing safety. Test results for both handling tests are presented, which compare performance of a vehicle with ESC and ARS systems enabled to a passive vehicle.

• Record URL:
  • http://www-nrd.nhtsa.dot.gov/pdf/nrd-01/esv/esv19/05-0324-O.pdf
• 
• Corporate Authors:

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Svenson, Alrik L
  • Hac, Aleksander
• Conference:
  • 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV)
  • Location: Washington DC, United States
  • Date: 2005-6-6 to 2005-6-9
• Publication Date: 2005-6

Language

• English

Media Info

• Media Type: Web
• Features: Figures; Photos; References;
• Pagination: 12p
• Monograph Title: Proceedings - 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV), Washington, D.C., June 6-9, 2005

Subject/Index Terms

• TRT Terms: Driving; Rollover crashes; Simulation; Steering; Vehicle tests
• Uncontrolled Terms: Active rear steer; Electronic stability control
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety; I95: Vehicle Inspection;

Filing Info

• Accession Number: 01066408
• Record Type: Publication
• Report/Paper Numbers: 05-0324
• Files: TRIS, USDOT
• Created Date: Sep 11 2007 2:04PM