Parameters optimum matching of pure electric vehicle dual-mode coupling drive system

查看全文 作　　者：ZHANG [1,2]LiPeng;LI [1]Liang;QI [2]BingNan;WANG [2]Chong;ZHANG [1]YaHui;SONG [1]Jian

机构地区：[1]State Key Laboratory of Automotive Safety and Energy, Tsinghua University;[2]School of Mechanical and Automotive Engineering, Liaocheng University

出　　处：《Science China(Technological Sciences)》索引2014年第57卷第11期,共13页

基　　金：supported by the National Key Technology R&D Program of the Ministry of Science and Technology(Grant No.2013BAG14B01);the Shandong Provincial Natural Science Foundation of China(Grant No.ZR2012EEL08);China Postdoctoral Science Foundation Funded Project(Grant No.2013M530608) 摘　　要：As an important development direction of pure electric vehicle drive system,the distributed drive system has the advantages of compact structure,high transmission efficiency,and flexible control,but there are some serious problems such as high performance requirements to the drive motors,complex control strategies,and poor reliability.To solve these problems,a two motors dual-mode coupling drive system has been developed at first,which not only has the capacity of two-speed gear shifting,but also can automatically switch between the distributed drive and the centralized drive by means of modes change control.So,the performance requirements to the drive motors can be reduced,the problem of abnormal running caused by the fault of unilateral distributed drive systems also can be resolved by replacing the drive mode with centralized drive.Then,the system parameters primary and the optimum matching under the principle of efficiency optimization have been carried out,which makes the drive system achieve predetermined functions and meet the actual demands of different operating statuses.At last,the economic comparison of a pure electric vehicle installation with a dual-mode coupling drive sytem,a single-motor centralized drive system or a dual-motor distributed drive system in the simulation conditions has been completed.Compared with other systems,the driving range of the electric vehicle driven by the designed system is significantly increased,which proves the better efficiency and application value of the system. 关键词：驱动系统电动车辆最佳匹配模式耦合性能要求控制策略驱动电动机纯电动汽车

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Parameters optimum matching of pure electric vehicle dual-mode coupling drive system

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