多段机电复合传动换段过程失稳机理与稳定性控制研究

项目名称： 多段机电复合传动换段过程失稳机理与稳定性控制研究

项目编号： No.51205020

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 机械工程学科

项目作者： 马越

作者单位： 北京理工大学

项目金额： 25万元

中文摘要： 在当前纯电动、混合动力等各种车辆电力驱动技术成为研究热点的背景下，多段机电复合传动作为混合动力的一种型式，既能够满足重型或非道路车辆的调速范围宽、驱动功率大、辅助系统和特定功能系统用电等特殊需求，也可降低对车用电机的功率要求，具有良好的应用前景。开展多段机电复合传动系统换段过程失稳机理及稳定性控制研究，基于哈密顿能量函数的方法建立发动机、功率耦合机构、电动机、动力电池组及DC/DC等部件的非线性动力学模型，通过数字仿真揭示换段过程能量传递与状态转换规律；利用Lyapunov稳定性理论分析机电复合传动系统的稳定工作范围及不稳定因素对系统的影响规律；基于反馈线性化理论设计合理的控制律，研制换段控制器，通过快速代码生成和半实物仿真技术验证控制算法的效果，实现多段机电复合传动系统状态转换过程的稳定性控制，为自主研发高性能机电复合传动装置奠定必要的理论基础。

中文关键词： 机电复合传动；换段；稳定性；协调控制；

英文摘要： As a specific transmission system for electric vehicles (EV) and hybrid electric vehicles (HEV), multi-range electric-mechanic transmission system (EMT)is the most effective solution for heavy-duty or off-road vehicle as its wide-spectrum torque and speed range, high power density and perfect electric power supply performance with the less requirements on the driving motors. In this project, stabilizing characteristic of EMT in range-switching will be thoroughly investigated and stabilizing controller will be designed correspondingly. First of all, unified energy-based dynamic models of key parts of EMT, such as engine, motor, generators and batteries, will be established under the framework of Hamilton theory, which helps to describe the energy flow relationships of EMT with favourableconsistency. Subsequently, stabilization characteristic during range switching will be studied on the theoretical level based on Lyapunov theory, in which mechanism of destabilization will be obtained, and stabilizing control rules will be proposed on the method of feedback linearization. Finally, hardware in the loop simulation will be carried out to evaluate the performance of the newly designed controller.

英文关键词： Electric-Mechanical Transmission；Mode Switch；Stability；Coordinated Control；