Hydraulic pressure control of electro-hydraulic brake system
YU Zhuo-ping
WANG Jing-jia
XIONG Lu
XU Song-yun
Abstract：The electro-hydraulic brake system (EHB) has become an increasingly promising research area. In this paper, the pressure control method of a self-designed I-EHB (integrated electro-hydraulic brake) system were researched to ensure the dynamic response of the system, and to balance the delay and loss of energy during work. Therefore, two hydraulic pressure control methods, the optimized self-adaptive PID control based on the Taguchi method and the sliding mode variable structure control (SMVSC), were designed and experimented on test bench. The paper compared these two different control methods and the experiments revealed that the EHB system with SMVSC has shorter time delay, smaller steady state error and better robustness with respect to integral controllability, especially when the target output is low frequency average-high hydraulic pressure, which occurs mostly under normal working condition. Therefore, this paper showed the effectiveness of the SMVSC and guides the further investigation of the hydraulic pressure control method.
Keywords：electro-hydraulic brake systempressure controladaptive control systemsPID controlsliding mode control
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 897-902 )