SUBCOMPACT VEHICLE ENERGY ABSORBING STEERING COLUMN EVALUATION AND IMPROVEMENT

Testing was conducted for the purpose of analyzing the interrelationships between and the effects of automobile interior surfaces on driver in jury. Testing was limited to frontal impacts of subcompact vehicles. At velocities near 20 mph, variations in steering wheels, steering coumns and knee restraints did not substantially affect the driver's injury serverity as described by FMVSS 208. At velocities near 25 mph, these effects became evident. Steering wheels which deform easily in a mode which aligns the steering wheel rim and hub to the driver's torso result in significant reductions in the driver's chest injury severity. The tube and mandrel type steering column, designed to reduce binding due to bending forces, produced less chest injury. The passive knee restraint substantially increased driver femur forces. With no knee restraint the driver submarined under the steering wheel and instrument panel, whereas with he knee restraint, the forward translation of the driver's knees was restricted, causing the driver to rotate about the H-point into the steering wheel and windshield. This reduced head and chest injury, but contributed to neck hyperextension.

  • Corporate Authors:

    Minicars, Incorporated

    55 Depot Road
    Goleta, CA  United States  93117

    National Highway Traffic Safety Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Publication Date: 1979-7

Media Info

  • Pagination: 389 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00305815
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FR-1061-07-79 Final Rpt., DOT-HS-805-077
  • Files: NTIS, TRIS, USDOT
  • Created Date: Sep 16 1980 12:00AM