Development of a Pre-Crash System Using the VEHIL Test Facility

Pre-crash systems (PCSs) use environment and vehicle dynamics sensors to improve the effectiveness of passive safety devices by activating them before a collision occurs. The autonomous character of these intelligent vehicle systems, required to anticipate dangerous traffic situations, as well as the combination of new hardware and software technologies make the design extremely complex. This paper presents an evaluation of a PCS using the VEhicle Hardware-In-the-Loop (VEHIL) test facility. The prototype system utilizes a long-range forward-looking radar, installed for adaptive cruise control systems, for activation of a reversible belt retractor. The VEHIL laboratory enables testing of intelligent vehicle systems in a hardware-in-the-loop environment, where only the relative motion between host and target vehicle is reproduced. The accuracy of VEHIL test setup made sensor validation and control system testing much easier and more flexible. It appeared to be useful for fine-tuning sensor post-processing algorithms, path prediction algorithms, and activation times. In addition, the radar system is modeled with the PRESCAN simulation tool, which enables simulation of environment sensors in a virtual environment. The simulated sensor output can be used for development of sensor post-processing, sensor fusion and control algorithms. Also other design aspects like sensor positioning and overall system architecture can be considered.

• Record URL:
  • http://www-nrd.nhtsa.dot.gov/pdf/nrd-01/esv/esv19/05-0322-O.pdf
• 
• Corporate Authors:

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Lemmen, Paul
  • Gietelink, Olaf
  • Shah, Minoo
  • Parenteau, Chantal
  • Kosiak, Walter
  • Cashler, Robert
• 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; Tables;
• Pagination: 10p
• 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: Algorithms; Hardware in the loop simulation; Intelligent vehicles; Radar; Sensors; Test facilities; Validation
• Uncontrolled Terms: Postprocessing; Pre-crash systems
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01066521
• Record Type: Publication
• Report/Paper Numbers: 05-0322
• Files: TRIS, USDOT
• Created Date: Sep 11 2007 2:04PM