电磁直驱变速系统的集成优化设计与跟随补偿控制研究

项目名称： 电磁直驱变速系统的集成优化设计与跟随补偿控制研究

项目编号： No.51505263

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 机械、仪表工业

项目作者： 李波

作者单位： 山东理工大学

项目金额： 20万元

中文摘要： 为满足纯电动汽车快速发展和高效变速器自主知识产权的需求，本项目提出一类高效节能的电磁直驱变速系统，使用高功率密度的电磁直线执行器直接驱动增力式同步器，具有结构紧凑、响应速度快和传动效率高等优点。针对此类新型变速系统在应用基础研究中急需解决的集成优化设计、电磁直线执行器温升特性和换挡控制精度的影响机理等关键问题，采用理论分析、数值模拟和试验相结合的方法，深入研究电磁直驱变速系统的优化设计理论、电磁直线执行器的温升机理，以及温度对同步器摩擦对偶面晶格阻力和比表面能的影响规律，建立相应的动力学、三维耦合和有限元分析模型并结合试验研究结果，寻求最优或较优的系统结构参数与设计要求间的映射理论，制定电磁直线执行器温升和同步器摩擦系数跟随补偿的换挡控制方法，提高直驱式自动变速系统的换挡品质和可靠性。最终形成一类新型高效变速器的设计理论与方法，对丰富汽车传动理论、推动纯电动汽车的技术进步有重要的科学意义。

中文关键词： 直驱变速系统；集成优化设计；温升；摩擦系数；补偿控制

英文摘要： In order to meet the requirements of the rapid development of pure electric vehicle and the independent intellectual property of high efficiency transmission, an electromagnetic direct-drive transmission system with the characteristics of high efficiency and energy saving is presented in the project. The system uses electromagnetic linear actuator driving the servo synchronizer directly. It has the advantages of compact structure, fast response and high efficiency. Aiming to the urgent problems of the innovation transmission system, such as integration optimizing design, temperature rise suppression characteristics of electromagnetic linear actuator and the influence mechanism of shift control accuracy, the research methods of theoretical analysis, numerical simulation and experiment are adopted. The optimization design theory of electromagnetic direct-drive transmission system, the temperature rise mechanism of electromagnetic linear actuator and the influence rules of lattice resistance and specific surface energy of synchronous dual friction surfaces are deeply researched. In order to obtain the optimal mapping theory between structure parameters and design requirements of the innovation transmission system and the shift control methods with the temperature rise and friction coefficient following compensation, the models of kinetics, three-dimensional coupling and finite element analysis are built. And then, the combination researches of simulation and experiment will be completed. The results will improve the shifting quality and reliability of the direct-drive automatic transmission. In the last, the design theory and method of an innovation high efficiency transmission can be formed and the accuracy of the shift control strategy can be improved. This fundamental research will enrich and develop automotive transmission theory. It has an important signification for the technological advances of pure electric vehicle.

英文关键词： Direct-drive transmission system;Integration optimizing design;Temperature rise;Friction coefficient;Following compensation control