以双轮式电机前驱电动汽车制动系统为研究对象,把双电机再生制动、液压制动、稳定性控制集成在一起,开发了再生制动系统协调控制器。根据车辆制动需求、车辆状态、系统储能状态等确定车辆制动模式及分配制动力矩,并根据车辆实时稳定性状况由双轮式电机再生制动提供车辆稳定性控制力矩。仿真和试验结果表明,在车辆转弯制动工况中采用所述集成协调控制器比采用电机单边独立控制稳定性控制效果更好。

Taking two-wheeled motor front drive electric vehicle regenerative braking system as the research object, the regenerative braking system coordinated controller was developed by integrating the dual-motor regenerative braking, hydraulic brake and the stability system. The vehicle braking mode and the allocation of braking torque were determined according to the vehicle''s braking demand, vehicle status and energy storage system state, and the stability control torque was provided by the two-wheeled motor regenerative braking system according to the real-time vehicle stability condition. The results show that, compared with the motor unilateral independent control strategy, the integrated coordinated controller has better stability effect on vehicle braking in the process of turning.

以扶梯为例,根据动力学的基本原理,推导了扶梯制动力矩、制停距离与负载变化、系统运动部件固有总质量之间的关系公式,描述了扶梯主机高速轴转动惯量对扶梯制动能量、制停距离、制动力矩的调节作用,为变载恒转矩制动系统性能的优化,特别是如何满足变载乘客运输系统的制动部件的规范要求和配置特点,提供参考性意见。

As a case study about escalators, according to the principle of dynamics, derived the formula about the relation of escalator brake torque, stopping distance, the varying passenger load, and the total inherent mass of moving components, described the impact regulation of rotational moment of inertia at high-speed shaft which how to acting on the escalator braking energy, stop distance and braking torque. Put forward reference comment about constant torque braking system performance optimization with varying load, especially how to comply with code requirement of escalator and how to configure braking system features for passenger transport system with varying load.

针对传统的制动器静态制动力矩测试装置在实际应用中测试麻烦、效率低、存在安全隐患的问题,研发一种结构合理、操作方便的制动器静态制动力矩自动测试装置,以测量实例验证该方法的有效性和精确性。

In terms of some problems of complex test,low efficiency,and safety hazards in actual application of static braking torque test device of the traditional brake,a new static braking torque automatic test device with proper structure and simple operation is researched and developed,and effectiveness and accurateness of this method is verified through in-stance measurement.

针对液力缓速器结构复杂、价格高,传统电涡流缓速器制动力矩热衰退严重等问题,提出一种液冷自励式电磁缓速器结构,建立其制动系统以及发电系统分析模型,分析了系统的磁路结构,利用有限元法分别对电磁场模型、制动特性以及温度场进行分析.设计了2 000 N·m样机并进行台架试验,对缓速器制动特性以及发电机特性进行测试,测试结果与有限元分析计算结果的误差在6％以内,在制动功率为180 kW时水道温度为85℃,持续制动时制动力矩热衰退仅为10.4％.在1 500 r/min时制动力矩达到最大值2 000 N·m,而汽车电源只需提供给发电机的励磁功率为720W.

In order to overcome the complicated structure and high prices of the hydraulic retarder and the serious thermal recession problem of braking torque of the conventional eddy current brake,a selfexcited and liquid-cooled eddy current retarder (SL-ECR) structure was proposed.The model of braking system and generating system of the SL-ECR was established and the magnetic circuit structure was analyzed.The electromagnetic field model,the braking performance and thermal field of the SLECR were analyzed by using finite element method.A 2000 N· m SL-ECR was produced and tested.The braking performance and the generator performance were tested.The results show that the difference between the finite element analysis results and the experiment results was 6％.The temperature of the water wipe was 85 ℃ when the braking power was 180 kW.The braking torque decreased by 10.4％ in the continuous braking stage.The braking torque could reach 2 000 N ·m when the speed was 1 500 r/min and the

针对飞机制动用碳刹车材料力矩冲锋、系数波动较大等对系统的影响，本文从峰谷比η、冲峰时间TC、平均力矩MA等碳盘参数入手，采用初始加压IPP、刹车指令多级处理技术MPTB、五级偏压调节PPB等技术，重点以控制角度提高系统对碳盘的适应性，动力联试表明：相对传统刹车模式，新方法对不同厂家、不同工艺的刹车盘适应性更强、制动过程更加平稳。这对提高现役飞机制动的安全性和可靠性具有重要现实意义。

Aiming at torque assault and coefficient fluctuation influence aircraft braking system by using carbon brake, the IPP, MTPB and PPB are used to improve the brake material adaptability with the material characteristics, such as peak-to-valley ratio, the pea times T_C and average torque M_A. The angle was controlled to improved carbon brake adaptability. The dynamic inertia tests show that the way increases the adaptability of carbon brakes with different manufacturers and diverse processes and has more stable braking process, relative to the traditional brake mode. That has important practical significance to improve the safety and reliability of aircraft braking system.