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首页> 外文期刊>IEEE / ASME Transactions on Mechatronics >Magnetorheological and Wedge Mechanism-Based Brake-by-Wire System With Self-Energizing and Self-Powered Capability by Brake Energy Harvesting
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Magnetorheological and Wedge Mechanism-Based Brake-by-Wire System With Self-Energizing and Self-Powered Capability by Brake Energy Harvesting

机译：基于磁流变学和楔形机构的线控式制动系统，具有通过制动能量收集实现自励和自供电能力

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摘要

Magnetorheological (MR) fluid is a widely used smart material due to its outstanding properties. This paper presents the design, development, modeling, and prototype testing of a self-energizing and self-powered MR brake-by-wire system, whose aforementioned capabilities are enabled by brake energy harvesting. The system is composed mainly of a typical T-shaped drum-type MR brake and a wedge mechanism for self-energizing purpose. Into the system, we also install a generator that harvests regenerative energy during braking, thereby creating a self-power capability that cannot be found in common vehicular brake-by-wire systems. Brake torque analysis is conducted, and the braking process is simulated in a MATLAB/Simulink environment. Finite element analysis of the magnetic field, temperature field, and mechanical strength of critical components is carried out. The simulation results are used to optimize design parameters and material selection. Finally, prototypes and a corresponding test rig are established. The experimental results show that only about 30 W of power is required to generate a 315 N·m brake torque and that the regenerative power produced by the generator can be used for braking, thus fulfilling the self-power requirement. The investigation of different wedge angles indicates that considerable self-energizing occurs under a small wedge angle. The findings demonstrate that the brake actuator, which has a relatively small volume, can significantly enlarge brake torque while harvesting brake energy. This feature enables the promising application of MR fluids in automotive brake systems.
机译：磁流变（MR）流体由于其出色的性能而被广泛使用。本文介绍了一种自我激励和自供电的MR线控制动系统的设计，开发，建模和原型测试，该系统的上述功能通过制动能量收集得以实现。该系统主要由典型的T型鼓式MR制动器和用于自增力的楔形机构组成。在系统中，我们还安装了发电机，该发电机在制动过程中会收集再生能量，从而创造出一种常见的线控车辆制动系统所没有的自发电能力。进行了制动转矩分析，并在MATLAB / Simulink环境中模拟了制动过程。对关键部件的磁场，温度场和机械强度进行了有限元分析。仿真结果用于优化设计参数和材料选择。最后，建立了原型和相应的测试平台。实验结果表明，产生315 N·m的制动扭矩仅需要约30 W的功率，并且发电机产生的再生功率可用于制动，从而满足了自发电的要求。对不同楔角的研究表明，在小楔角下会发生相当大的自增能。研究结果表明，具有较小体积的制动执行器可以在收集制动能量的同时显着增大制动扭矩。此功能使MR流体有望在汽车制动系统中应用。

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  • 来源
    《IEEE / ASME Transactions on Mechatronics》 |2016年第5期|2568-2580|共13页
  • 作者

    Liangyao Yu; Liangxu Ma; Jian Song; Xuhui Liu;

  • 作者单位

    Department of Automotive Engineering, State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China;

    Department of Automotive Engineering, State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China;

    Department of Automotive Engineering, State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China;

    Department of Automotive Engineering, State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Brakes; Torque; Fluids; Actuators; Force; Rotors; Shafts;

    机译：制动器;扭矩;流体;执行器;力;转子;轴;

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