电子机械制动器的间隙调控方法  

A Gap Control Method for Electromechanical Brakes

作　　者：刘志强[1] 陈玉锦 陈林 LIU Zhiqiang;CHEN Yujin;CHEN Lin(School of Automotive and Transportation Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China;Innovation Enterprise Management Department,Jiangsu Hengli Brake Manufacturing Co.,Ltd.,Jingjiang 214512,Jiangsu,China)

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013 [2]江苏恒力制动器制造有限公司创新企管部,江苏靖江214512

出　　处：《兵工学报》2022年第7期1478-1487,共10页Acta Armamentarii

基　　金：国家自然科学基金项目(72001095)。

摘　　要：为解决现有电子机械制动器(EMB)的间隙调控主要依靠附加机械自动调整机构或采用多种传感器引起的体积增大、结构复杂、成本提高等问题,给出一种EMB的设计方案,并提出一种利用电机转速与电流变化信号分别识别制动摩擦片与制动盘的接触临界点与分离临界点的间隙调控策略。建立数学模型,并在MATLAB/Simulink环境下对所设计的EMB进行仿真分析。其控制系统采用基于压力环、转速环、电流环的PID三闭环控制策略,仿真与实验结果表明:该EMB与间隙调控策略能够精确保证制动间隙,有效减小了达到目标夹紧力和制动间隙消除的时间,实现较好的制动效果,并验证了设计方案的合理性。A novel electromechanical brakes(EMB)design is proposed to address current problems in gap control,such as greater size due to the integration of additional mechanical structures and sensors for automatic adjustment,complex structures,and increased costs.A gap control strategy is proposed to use motor speed and current change signals to identify the critical points of contact and separation between the brake pad and brake disc.Furthermore,a mathematical model is established.The designed EMB brake is simulated and analyzed using MATLAB/Simulink.Based on the pressure loop,speed loop,and current loop,the EMB adopts PID type-Ⅲcontrol loop as the control system.Simulation and experimental results demonstrate that the EMB and gap control strategy can effectively ensure the brake gap and reduce the target clamping force as well as the time required to eliminate the brake gap,validating the feasibility and effect of the design.

关 键 词：电子机械制动器 EMB设计 PID三闭环控制 间隙调控 

分 类 号：U463[机械工程—车辆工程]