中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2012年
6期
745-751
,共7页
双离合器自动变速器%起步与换挡动力学%离合器压力%H∞鲁棒控制
雙離閤器自動變速器%起步與換擋動力學%離閤器壓力%H∞魯棒控製
쌍리합기자동변속기%기보여환당동역학%리합기압력%H∞로봉공제
dual clutch transmission(DCT)%dynamics of vehicle's starting and shifting processes%clutch pressure%H∞ robust control
根据自主研发的双离合器自动变速器（DCT）结构和工作原理,建立了DCT车辆起步及换挡过程动力学模型。考虑起步及换挡过程中发动机扭矩波动及油门踏板抖动等不确定性因素,基于Ric-cati不等式和线性矩阵不等式设计了H∞鲁棒控制器,分析了冲击度和滑摩功两项离合器接合性能指标,探讨了离合器最优传递扭矩的求解问题,并与线性二次型最优控制策略进行了仿真对比分析,结果表明：H∞鲁棒控制可以较好地解决DCT车辆起步与换挡过程离合器压力控制问题,并能显著地改善离合器控制的鲁棒性能。
根據自主研髮的雙離閤器自動變速器（DCT）結構和工作原理,建立瞭DCT車輛起步及換擋過程動力學模型。攷慮起步及換擋過程中髮動機扭矩波動及油門踏闆抖動等不確定性因素,基于Ric-cati不等式和線性矩陣不等式設計瞭H∞魯棒控製器,分析瞭遲擊度和滑摩功兩項離閤器接閤性能指標,探討瞭離閤器最優傳遞扭矩的求解問題,併與線性二次型最優控製策略進行瞭倣真對比分析,結果錶明：H∞魯棒控製可以較好地解決DCT車輛起步與換擋過程離閤器壓力控製問題,併能顯著地改善離閤器控製的魯棒性能。
근거자주연발적쌍리합기자동변속기（DCT）결구화공작원리,건립료DCT차량기보급환당과정동역학모형。고필기보급환당과정중발동궤뉴구파동급유문답판두동등불학정성인소,기우Ric-cati불등식화선성구진불등식설계료H∞로봉공제기,분석료충격도화활마공량항리합기접합성능지표,탐토료리합기최우전체뉴구적구해문제,병여선성이차형최우공제책략진행료방진대비분석,결과표명：H∞로봉공제가이교호지해결DCT차량기보여환당과정리합기압력공제문제,병능현저지개선리합기공제적로봉성능。
Based on the structure and working principles of DCT, some dynamic models during the vehicle＇s starting and shifting processes were built. Considering the uncertain factors such as engine torque fluctuation and jitter of gas pedal during the vehicle＇s starting and shifting processes, a H∞ robust controller was designed based on the Riccati inequality and the LMI, the jerk and the slipping friction work which standed for the two performance indexes of clutch engaging were analyzed, the optimal pressure of twin clutches was obtained using the above H∞ robust control method. And relative simulation analyses were made comparing with linear quadratic optimal control algorithm. Simulation results indicate that the provided H∞ robust control strategy can resolve the problem of the clutch pressure control effectively during the vehicle＇s starting and shifting process and greatly improve the robustness of clutch control.
