电子机械制动器的间隙调控方法

doi:10.12382/bgxb.2021.0395

摘要/Abstract

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。

关键词: 电子机械制动器, EMB设计, PID三闭环控制, 间隙调控

Abstract: 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-Ⅲ control 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.

Key words: Electromechanicalbrake, EMBdesign, PIDtype-Ⅲcontrolloop, gapregulation

中图分类号:

U463

刘志强，陈玉锦，陈林. 电子机械制动器的间隙调控方法[J]. 兵工学报, 2022, 43(7): 1478-1487.

LIU Zhiqiang， CHEN Yujin， CHEN Lin. A Gap Control Method for Electromechanical Brakes[J]. Acta Armamentarii, 2022, 43(7): 1478-1487.

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