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EFFECTS OF GEOMETRY AND STIFFNESS ON THE FRONTAL COMPATIBILITY OF UTILITY VEHICLES
Published June 04, 2001 by National Highway Traffic Safety Administration in United States
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The issue of vehicle incompatibility, especially between passenger cars and utility vehicles/pickup trucks, has received a lot of attention in recent years. Real-world crash data show that occupants of cars are much more likely to be injured in frontal crashes with utility vehicles and pickup trucks than with other passenger cars, even after controlling for vehicle mass. Factors in addition to mass that can influence compatibility are stiffness and geometry. In this paper, the effects of these factors on occupant injury measures and vehicle deformation patterns are examined. The Insurance Institute for Highway Safety conducted a series of car-to-utility-vehicle frontal offset tests with the Ford Taurus as a common collision partner. To vary stiffness, the Taurus collided with either a Mercedes ML320 or a relatively stiffer Isuzu Rodeo. To vary geometry, the test matrix included an ML320 at normal ride height, a Rodeo at normal ride height, an ML320 lowered 9 cm so the frame rails matched the ride height of the normal Rodeo, and a Rodeo raised 9 cm to match the ride height of the normal ML320. In each test, both vehicles were traveling at 48 km/h (30 mi/h). A Hybrid III 50th percentile male dummy was seated in the driver’s seat of each vehicle. Vehicle deformation patterns, dummy injury measures, and vehicle accelerations were recorded and compared. Results indicated that, despite its lesser stiffness, the normally higher ride height of the ML320 produced a less ‘compatible’ crash than the Rodeo, whose front end is stiffer but normally lower. The benefits of lesser front-end stiffness were smaller and only apparent in comparisons of tests at a common ride height. These results indicate that there is little benefit of reduced utility vehicle stiffness without good geometrical alignment of vehicles’ front structures.
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CitationMeyerson, S. and Nolan, J., "EFFECTS OF GEOMETRY AND STIFFNESS ON THE FRONTAL COMPATIBILITY OF UTILITY VEHICLES," SAE Technical Paper 2001-06-0078, 2001.
- Faerber, E. et al 1998 Improvement of crash compatibility between cars Proceedings of the 16th International Technical Conference on the Enhanced Safety of Vehicles 650 61 Washington, DC National Highway Traffic Safety Administration
- Hobbs, C.A. 1989 The influence of car structures and padding on side impact injuries Proceedings of the 12th International Technical Conference on the Experimental Safety Vehicles 954 62 Washington, DC National Highway Traffic Safety Administration
- Insurance Institute for Highway Safety 1998 Status Report Special Issue: Crash Compatibility 33 1 Arlington, VA http://www.highwaysafety.org/srpdfs/sr3301.pdf
- Klaner, W. Felsch, B. van West, F. 1998 Evaluation of occupant protection and compatibility out of frontal crash tests against the deformable barrier Proceedings of the 16th International Technical Conference on the Enhanced Safety of Vehicles 693 702 Washington, DC National Highway Traffic Safety Administration
- Lund, A.K. Chapline, J.F. 1999 Potential strategies for improving crash compatibility in the U.S. vehicle fleet (SAE 1999-01-0066 ) 33 44 Warrendale, PA Society of Automotive Engineers
- Lund, A.K. O’Neill, B. Nolan, J.M. Chapline, J.F. 2000 Crash compatibility issue in perspective (SAE 2000-01-1378 ) Vehicle Aggressivity and Compatibility in Automotive Crashes 2000 (SP-1525) Warrendale, PA Society of Automotive Engineers
- Mercedes-Benz of North America, Inc 1998
- Provensal, J. Stcherbatcheff, G. 1981 Identification of compatibility factors in side collisions Proceedings of the 8th International Technical Conference on the Experimental Safety Vehicles 587 99 Washington, DC National Highway Traffic Safety Administration
- Steyer, C. Delhommeau, M. Delannoy, P. 1998 Proposal to improve compatibility in head-on collisions Proceedings of the 16th International Technical Conference on the Enhanced Safety of Vehicles 682 92 Washington, DC National Highway Traffic Safety Administration
- The Polk Company 1997
- Wykes, N. Edwards, M. Hobbs, A. 1998 Compatibility requirements for cars in frontal and side impacts Proceedings of the 16th International Technical Conference on the Enhanced Safety of Vehicles 667 81 Washington, DC National Highway Traffic Safety Administration
- Zeidler, F. Knöchelmann, F. Scheunert, D. 1999 Possibilities and limits in the design of compatible cars for real world accidents SAE Technical Paper Series 1999-01-0068
- Zobel, R. 1999 Accident analysis and measures to establish compatibility SAE Technical Paper Series 1999-01-0065