Controlled Braking on Uneven Roads

by Dieter Ammon, Daimler-Benz AG, Stuttgart, Germany,

Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability


The braking process of a passenger car may be influenced by a large number of variables relating to driver, vehicle, brake system, tire-road interaction and ambient conditions. Because of strong nonlinearities in the control circuit, various significant disturbances relating to driving state and environment, and some technical restrictions, the control strategy has to be adjusted sharply to the specific properties of the vehicle. This optimization guarantees a high level of safety and brake performance. However, the over-all system behavior may become more sensitive to supposedly independent parameters. For instance, what happens if the shock absorbers are defective? This special question, and the methodology to solve similar problems, is discussed in this paper.

Subject Headings: Highways and roads | Highway and road conditions | Vehicle-pavement interaction | Vehicles | Safety | Control systems | Passengers | Automobiles

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