集成式电液制动系统建模仿真与压力控制  

Modeling,Simulation and Pressure Control of Integrated-electro-hydraulic Brake System

作　　者：张祥琨 季学武[2] 钟佩思[1] 刘贺 王岩 孙永鹏 ZHANG Xiang-kun;JI Xue-wu;ZHONG Pei-si;LIU He;WANG Yan;SUN Yong-peng(College of Mechanical and Electrical Engineering,Shandong University of Science and Technology,Qingdao 266590,China;State Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China)

机构地区：[1]山东科技大学机械电子工程学院,青岛266590 [2]清华大学汽车安全与节能国家重点实验室,北京100084

出　　处：《科学技术与工程》2021年第13期5539-5545,共7页Science Technology and Engineering

基　　金：国家自然科学基金(51975311)。

摘　　要：为实现对集成式电液制动系统(integrated-electro-hydraulic brake,IEHB)压力的精确控制,通过MATLAB/Simulink软件建立了包含机械系统和液压系统的IEHB整体仿真模型,研究分析了IEHB系统具有多个控制对象且相互耦合的特点,设计了电动主缸、助力电机、增压阀、减压阀以及电动泵的控制策略,从而实现主缸压力和轮缸压力的协调精确控制,并对IEHB系统和压力控制方案建模。最后,在3种不同工况下对IEHB模型和压力控制策略进行仿真实验。结果表明:所建立的IEHB模型可以较好地模拟实物系统,所设计的IEHB压力控制策略与传统的比例-积分-微分(proportional-integral-derivative,PID)控制相比具有更好的跟踪响应表现和更强的鲁棒性。In order to realize the integrated-electro-hydraulic brake system(IEHB)pressure control precision,the IEHB whole simulation model which contains hydraulic system and mechanical system was established based on MATLAB/Simulink software.The characteristics of IEHB system with multiple control objects and coupling were studied and analyzed,and the control strategies of the electric master cylinder,booster power motor,pressure increasing valve,reduce pressure valve and electric pump were designed,then the master cylinder and wheel cylinder pressure coordinate precision control can be achieved.Finally,the IEHB system and the pressure control strategies were modeled and verified by simulation experiments under three different working conditions.The results show that the real IEHB system is simulated well by the IEHB model,and the IEHB pressure control strategies which are designed have better tracking response performance and stronger robustness compared with the traditional proportional-integral-derivative(PID)control.

关 键 词：集成式电液制动系统 压力控制 电机控制 建模仿真 

分 类 号：U461[机械工程—车辆工程]