Title :
An anti-lock braking control system for a hybrid electromagnetic/electrohydraulic brake-by-wire system
Author_Institution :
Dept. of Chassis Adv. Technol., Visteon Corp., Dearborn, MI, USA
fDate :
June 30 2004-July 2 2004
Abstract :
This work presents a nonlinear sliding mode type controller for slip regulation in a braking event for a hybrid electromagnetic-electrohydraulic brake-by-wire system. The ABS controller modifies the brake torque command generated by a supervisory controller based on driver´s command via brake pedal sensor. The brake torque command is then generated by closed loop actuator control algorithm to control the eddy current brake (ECB) and electrohydraulic brake (EHB) systems. The proposed control algorithm shows very good slip regulation in a braking event on low friction coefficient surfaces when compared with non-ABS braking. Usage of ECB resulted in a smooth ABS stop minimizing the NVH of current hydraulic ABS systems.
Keywords :
brakes; closed loop systems; eddy currents; electrohydraulic control equipment; nonlinear control systems; road vehicles; torque control; variable structure systems; antilock braking control system; brake pedal sensor; brake torque command; brake-by-wire system; closed loop actuator control algorithm; eddy current brake system; electrohydraulic brake system; electromagnetic-electrohydraulic system; nonlinear control; sliding mode control; supervisory controller;
Conference_Titel :
American Control Conference, 2004. Proceedings of the 2004
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-8335-4
