A test program was conducted to obtain empirical data on vehicle response and intrusion when impacting the rear end of a conventional sedan with the modified front ends of two structurally improved vehicles. One of the front end designs was a fixed-force system having a 40G square wave response (the CAL Mod 2D front end) and the other was a velocity-sensitive hydraulic front end (the AMF Inc. ESV energy management system). Five tests, three at 40 mph and two at 60 mph, were conducted to obtain data for the evaluation of the aggressiveness of the two systems. Analysis of the test data revealed that the total system crush was essentially the same in the 60-mph tests, and that the average occupant compartment accelerations were generally lower with the velocity-sensitive system as the striking vehicle. The struck vehicle experienced less crush when impacted with the velocity-sensitive system. The total event time was increased by 15 percent in the 60-mph test, with the velocity-sensitive system evidencing a better occupant environment in the striking vehicle by providing longer occupant ride down times.

  • Supplemental Notes:
    • See also PB-220 559, and PB-220 842.
  • Corporate Authors:

    Dynamic Science

  • Publication Date: 1973-8

Media Info

  • Pagination: 50 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00051600
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: 2310-72-16 Final Rpt
  • Contract Numbers: DOT-OS-10187
  • Files: NTIS
  • Created Date: Mar 25 1974 12:00AM