Research of Three Anti-Lock Braking Control Algorithms to Enhance the Effect of Vehicle Directional Stability

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Abstract:

Sets up a nonlinear vehicle dynamic model of eight degrees of freedom and simulates in Matlab/Simulink environment using three anti-lock braking control algorithms, which contain PID, logic threshold and sliding mode variable structure. On the basis of the work, the improving effects for vehicle directional stability, the control effects analyzing from the aspects of tire/whole vehicle parameters and the phase-plane of slid slip angel and its rate are compared and analyzed. The results show that: PID responses fastest but with larger overshoot, logic threshold has smallest fluctuations thus can be implemented more easily, sliding mode control responses slowest but can hold the slip rate more accurately.

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618-624

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March 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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