Testing was conducted for the purpose of analyzing the interrelationships between and the effects of automobile interior surfaces on driver injury. Testing was limited to frontal impacts of subcompact vehicles. At velocities near 20 mph, variations in steering wheels, steering columns and knee restraints did not substantially affect the driver's injury severity as described by FMVSS 208. At velocities near 25 mph, these effects beacme evident. Steering wheels deform easily in a mode which aligns the steering wheel rim and hub to the driver's torso results 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. Whin no knee restraint, the driver submarined under the steering wheel and instrument panel, whereas with the 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. (Stoehr)


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    Title :

    Subcompact vehicle energy absorbing steering column evaluation and improvement. Executive summary


    Additional title:

    Entwicklung und Bewertung einer energieabsorbierenden Lenksaeule fuer amerikanische Subkompakt-PKWs


    Contributors:

    Published in:

    Publication date :

    1979


    Size :

    20 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English







    Subcompact Vehicle Energy-Absorbing Steering Assembly Evaluation

    Khadilkar, Anil / Phillips, Llad / Morgan, Richard M. et al. | SAE Technical Papers | 1978


    Subcompact Vehicle Energie-Absorbing Steering Assembly Evaluation

    Phillips,L. / Khadilkar,A. / Egbert,T.P. et al. | Automotive engineering | 1978