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Technical Paper


AS a basis for the analyses of this symposium, a hypothetical car has been used to evaluate the engine power distribution in performance. Effects of fuel,-engine accessories, and certain car accessories are evaluated. The role of the transmission in making engine power useful at normal car speeds is also discussed. Variables encountered in wind and rolling resistance determinations are reevaluated by improved test techniques. Net horsepower of the car in terms of acceleration, passing ability and grade capability are also summarized.
Technical Paper

Vehicle Crash Research and Manufacturing Experience

The search for improvements in occupant protection under vehicle impact is hampered by a real lack of reliable biomechanical data. To help fill this void, General Motors has initiated joint research with independent researchers such as the School of Medicine, U. C. L. A. – in this case to study localized head and facial trauma — and has developed such unique laboratory tools as “Tramasaf,” a human-simulating headform, and “MetNet,” a pressure-sensitive metal foam. Research applied directly to product design also has culminated in developments such as the Side-Guard Beam for side impact protection.
Technical Paper

Field Experience with the Energy Absorbing Steering Column

General Motors introduced in its 1967 passenger cars an innovation in the concept of vehicle safety called the “energy-absorbing steering column.” A statistical study of its performance has been conducted on 3000 1968 General Motors passenger cars which were involved in accidents. This field accident study is then compared with raw accident data obtained from ACIR. Various other aspects of the performance of the column are investigated in this summary of field accident experience.