Fault Tolerant Control and Classification for Longitudinal Vehicle Control

[+] Author and Article Information
Bongsob Song, J. Karl Hedrick, Adam Howell

University of California, Berkeley, CA

J. Dyn. Sys., Meas., Control 125(3), 320-329 (Sep 18, 2003) (10 pages) doi:10.1115/1.1592188 History: Received February 07, 2002; Revised March 12, 2003; Online September 18, 2003
Copyright © 2003 by ASME
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A schematic structure of regulation layer in a fault-tolerant control architecture
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Free-body diagram for longitudinal motion of a transit bus
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Schematic block diagram of DSC and the closed-loop error dynamics in the presence of faults
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Empirical engine map of a 280-hp CNG engine
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Velocity tracking and error (a, b), control inputs (c, d), and quadratic function level (e) in the presence of model uncertainties
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Velocity tracking errors (a), control inputs (b, c), and a quadratic function level (d): γe=0.06 (6% actuator fault) after 10 sec, |δh(t)|≤0.1, and |δKb(t)|≤0.3
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Velocity tracking error (a), quadratic function level (d), and brake torque (e): γe=0.06 after 10 s, |δh(t)|≤0.5 after 20 s, and |δKb(t)|≤0.6 after 32 s




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