基于数据驱动的双离合器自动变速器换挡过程自适应控制  

Adaptive Shifting Control for Data Driven Dual Clutch Transmission

作　　者：刘永刚[1,2] 张静晨 万有刚 孙冬野[1,2] 秦大同[1,2] Liu Yonggang;Zhang Jingchen;Wan Yougang;Sun Dongye;Qin Datong(Chongqing University,State Key Laboratory of Mechanical Transmission,Chongqing 400044;College of Mechanical and Vehicle Engineering,Chongqing University,Chongqing 400044)

机构地区：[1]重庆大学,机械传动国家重点实验室,重庆400044 [2]重庆大学机械与运载工程学院,重庆400044

出　　处：《汽车工程》2021年第6期891-898,923,共9页Automotive Engineering

基　　金：国家自然科学基金重点支持项目(U1764259);重庆市基础研究与前沿探索项目(CSTC2018JCYJAX0409)资助。

摘　　要：针对双离合器自动变速器(dual clutch transmissions,DCT)在系统性态随服役时间发生变化或存在内外部干扰时换挡品质变差的问题,提出了一种基于数据驱动的无模型自适应控制方法。首先,开展了DCT实车实验采集换挡过程数据,经去噪后统计出换挡品质相对较好的离合器参考转速曲线;然后,通过设计伪偏导数估计方法建立DCT系统动态数据模型,基于无模型自适应控制方法设计了用于跟随离合器参考转速的换挡过程数据驱动控制器;最后,建立DCT系统换挡过程仿真模型,在不同油门下对所提控制方法进行验证。结果表明:当系统性态发生变化或存在内外部干扰时,所提方法保证了良好的换挡品质,具有较好的自适应能力和鲁棒性。A data driven model-free adaptive control method is proposed to solve the problem that the shifting quality of dual clutch transmissions(DCT)deteriorates when internal and external interference exist or system state changes with the service time.First of all,the real vehicle tests are carried out to collect the data of DCT shifting process,and the clutch speed reference curve with relatively good shifting quality is selected by statistics after denoising.Then,a dynamic data model of DCT system is established by designing pseudo-partial derivative estimation method,and a data driven controller for shifting process is designed to follow the clutch reference speed based on model-free adaptive control method.Finally,the simulation model of DCT shifting process is established to verify the proposed controller under different throttle opening.The results show that the proposed method can ensure good shifting quality when internal and external interference exist or systematic state changes.Therefore,the proposed controller has great adaptive ability and robustness.

关 键 词：双离合器自动变速器 换挡控制 数据驱动 跟踪控制 自适应控制 

分 类 号：U463.212[机械工程—车辆工程]