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工程设计学报
工程设计学报  2021, Vol. 28 Issue (3): 335-343    DOI: 10.3785/j.issn.1006-754X.2021.00.043
优化设计     
电动汽车变速器电液控制系统总成设计及结构优化
张泽1, 陈勇1, 李光鑫1, 雷勇敢1, 阮鸥2, 王再宙3
1.河北工业大学 天津市新能源汽车动力传动与安全技术重点实验室， 天津 300130
2.浙江吉利汽车研究院有限公司， 浙江 宁波 315336
3.河北师范大学 机械工程学院， 河北 石家庄 050024
Design and structure optimization of electro-hydraulic control system assembly of electric vehicle transmission
ZHANG Ze1, CHEN Yong1, LI Guang-xin1, LEI Yong-gan1, RUAN Ou2, WANG Zai-zhou3
1.Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles， Hebei University of Technology， Tianjin 300130， China
2.Zhejiang Geely Automobile Research Institute Co.， Ltd.， Ningbo 315336， China
3.School of Mechanical Engineering， Hebei Normal University， Shijiazhuang 050024， China
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摘要： 双离合变速器（dual clutch transmission，DCT）具有换挡速度快、传动效率高和质量小等优点，搭载DCT的电动汽车的动力性与经济性可显著提高。在DCT中，电液控制系统总成的设计尤为关键。以纯电动汽车的两挡干式双离合变速器（简称为2DCT）为研究对象，对其电液控制系统总成进行设计。首先，基于2DCT中干式双离合器的结构和性能参数，对2DCT电液控制系统的关键元件进行选型和计算。然后，基于2DCT电液控制系统的原理，设计了一体式液压阀体，并通过静力学分析来验证其结构的稳定性。最后，对2DCT电液控制系统的一体式液压阀体的结构进行拓扑优化，以减小液压阀体的质量，从而实现轻量化。结果表明，所设计的电液控制系统总成的工作特性和结构强度均满足要求，可充分提高电动汽车的平顺性和响应速度。研究结果可为电动汽车变速器电液控制系统总成的开发提供理论依据。
Abstract: Dual clutch transmission (DCT) has advantages of fast shifting speed, high transmission efficiency and low mass. The power and economy of electric vehicles equipped with DCT can be significantly improved. In the DCT, the design of the electro-hydraulic control system assembly is particularly critical. Taking the two-speed dry dual clutch transmission (referred to as 2DCT) of a pure electric vehicle as the research object，the electro-hydraulic control system assembly was designed. Firstly, based on the structure and performance parameters of the dry dual clutch in the 2DCT, the key components of the 2DCT electro-hydraulic control system were selected and calculated. Then, based on the principle of 2DCT electro-hydraulic control system, the integrated hydraulic valve body was designed, and its structural stability was verified by the statics analysis. Finally, the structure of the integrated hydraulic valve body of 2DCT electro-hydraulic control system was topologically optimized to reduce the mass of the hydraulic valve body, so as to achieve lightweight. The results showed that the working characteristics and structural strength of the designed electro-hydraulic control system assembly both met the requirements, which could fully improve the ride comfort and response speed of electric vehicles. The research results can provide a theoretical basis for the development of the electro-hydraulic control system assembly of electric vehicle transmissions.
收稿日期: 2020-08-10 出版日期: 2021-06-28
:  TH 137  
基金资助: 河北省教育厅资助科研项目（ZD2020320）；宁波市科技计划项目（2019B0111）
通讯作者: 陈勇（1954—），男，北京人，教授，博士生导师，博士，从事汽车系统动力学、高强度齿轮磨损摩擦学等研究，E-mail：chenyong1585811@163.com     E-mail: chenyong1585811@163.com
作者简介: 张泽（1997—），男，天津人，硕士生，从事电动车变速器总成设计研究，E-mail：zz07151997@163.com，https：//orcid.org/0000-0003-3126-946X；
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引用本文:

张泽, 陈勇, 李光鑫, 雷勇敢, 阮鸥, 王再宙. 电动汽车变速器电液控制系统总成设计及结构优化[J]. 工程设计学报, 2021, 28(3): 335-343.

ZHANG Ze, CHEN Yong, LI Guang-xin, LEI Yong-gan, RUAN Ou, WANG Zai-zhou. Design and structure optimization of electro-hydraulic control system assembly of electric vehicle transmission. Chinese Journal of Engineering Design, 2021, 28(3): 335-343.

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https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2021.00.043    或    https://www.zjujournals.com/gcsjxb/CN/Y2021/V28/I3/335

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