Claims and counter-claims as to the deceleration possible under certain conditions, especially when applied to the legal questions arising at the time of an accident, induced the author to make an investigation of the subject. An attempt has been made to include all the variables that are of significance or of sufficient magnitude to affect appreciably the performance of a car under a given set of conditions of the vehicle or of the environment. Inasmuch as the calculations are simplified by doing so and because the difference between the amounts of deceleration and of power involved are small, the assumption is made that the maximum deceleration occurs when the wheels are locked, rather than when they are still rotating. The stopping-distances, theoretically obtained, apply to level-road conditions only.Through a series of mathematical equations, based on the weight of the car, the proportion of the weight on the front and on the rear wheels, the height of the center of gravity above the road, the length of the wheelbase, the coefficient of friction between the tires and the road, the velocity and the like, conclusions are reached that:
MINIMUM STOPPING-DISTANCE OF AN AUTOMOBILE1
Sae Technical Papers
Pre-1964 SAE Technical Papers ; 1906
1925-01-01
Conference paper
English
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