This paper presents reduced-order models of brake system dynamics derived from a physical modeling perspective. The vacuum booster model combines a static control valve with dynamic air flows, resulting in the ability to easily reproduce both static hysteresis effects and rapid transients. Following the assumption of incompressible flow, a four-state model of the brake hydraulics is presented and, subsequently, reduced to one or two states for certain applications. Experimental results support the simplifying assumptions made during the modeling process by demonstrating better agreement with the response from pedal force to brake pressure than previously displayed in the literature. These models are intended for use in the design and analysis of vehicle control systems and the evaluation of driver/vehicle interactions through dynamic simulation.
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September 1999
Technical Papers
Brake System Modeling for Simulation and Control
J. Christian Gerdes,
J. Christian Gerdes
Department of Mechanical Engineering, University of California, Berkeley, CA 94720
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J. Karl Hedrick
J. Karl Hedrick
Department of Mechanical Engineering, University of California, Berkeley, CA 94720
Search for other works by this author on:
J. Christian Gerdes
Department of Mechanical Engineering, University of California, Berkeley, CA 94720
J. Karl Hedrick
Department of Mechanical Engineering, University of California, Berkeley, CA 94720
J. Dyn. Sys., Meas., Control. Sep 1999, 121(3): 496-503 (8 pages)
Published Online: September 1, 1999
Article history
Received:
December 31, 1997
Online:
December 3, 2007
Citation
Gerdes, J. C., and Hedrick, J. K. (September 1, 1999). "Brake System Modeling for Simulation and Control." ASME. J. Dyn. Sys., Meas., Control. September 1999; 121(3): 496–503. https://doi.org/10.1115/1.2802501
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