P2混动自动变速器的离合器自适应控制
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摘要
为了解决混合动力系统动力耦合的响应性和舒适性问题,建立混动离合器C0起动发动机过程和并联动力输出模式下的功率流模型。对C0起动发动机的控制过程进行仿真分析,针对C0的起动扭矩和电机的输出扭矩在时间和空间上的匹配问题,提出以换挡离合器的滑摩控制来进行缓冲的策略。为了实现稳定精确的发动机起动控制,消除各自的扭矩控制、液压系统特性的误差,提出C0离合器起动发动机的自适应控制和B1离合器滑摩自适应控制,以换挡离合器滑差和发动机转速的超调量为监控对象,对C0离合器各阶段压力控制参数进行自适应调整,以优化发动机起动过程。研究结果表明:通过换挡离合器的滑摩控制可以很好地解决C0离合器扭矩和电机扭矩的匹配问题,即使在换挡过程中对发动机起动也能保证良好的舒适性,并控制过程时间在1.5 s内;在整车试验过程中,通过对C0压力的自适应调整,发动机转速的超调和起动冲击问题均可以得到有效解决。
To solve the responsiveness and comfort issues of coupling in a hybrid power system, the power flow model, which is used to simulate the engine starting process by the C0 hybrid clutch, and the parallel mode power output process were established. Through a simulation analysis of the C0 clutch engine starting control process, a shift clutch slip control strategy is proposed to solve the matching problem between the C0 clutch starting torque and the e-motor torque. To realize stable and accurate engine starting control and eliminate the errors from the independent part torque control and the hydraulic system, adaptive control of both the C0 clutch engine starting process and B1 clutch slipping is proposed. The C0 clutch pressure control parameters were adjusted adaptively at different stages to optimize the engine starting process by monitoring the slip of the shifting clutch and the overshoot of the engine speed. The results show that slip control of the shift clutch can solve the matching issues between the C0 clutch torque and the e-motor torque. The engine starting process can be completed in 1.5 s while ensuring the comfort. In the vehicle test process, engine speed overshoot and engine starting shock can be effectively solved by using C0 clutch adaptive control.
To solve the responsiveness and comfort issues of coupling in a hybrid power system, the power flow model, which is used to simulate the engine starting process by the C0 hybrid clutch, and the parallel mode power output process were established. Through a simulation analysis of the C0 clutch engine starting control process, a shift clutch slip control strategy is proposed to solve the matching problem between the C0 clutch starting torque and the e-motor torque. To realize stable and accurate engine starting control and eliminate the errors from the independent part torque control and the hydraulic system, adaptive control of both the C0 clutch engine starting process and B1 clutch slipping is proposed. The C0 clutch pressure control parameters were adjusted adaptively at different stages to optimize the engine starting process by monitoring the slip of the shifting clutch and the overshoot of the engine speed. The results show that slip control of the shift clutch can solve the matching issues between the C0 clutch torque and the e-motor torque. The engine starting process can be completed in 1.5 s while ensuring the comfort. In the vehicle test process, engine speed overshoot and engine starting shock can be effectively solved by using C0 clutch adaptive control.
引文
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[15]赵治国,胡笑天,姜娇龙,等,干式双离合器自动变速器起步滑模变结构协调控制及实时优化[J].机械工程学报,2012,48(24):87-105.ZHAO Zhi-guo,HU Xiao-tian,JIANG Jiao-long,et al.Slip Mode Variable Structure Coordinating Control and Real-time Optimization of Launch for Dry Dual Clutch Transmission[J].Journal of Mechanical Engineering,2012,48(24):87-105.
[16]KIM N W,LEE D H,ZHENG C,et al.Realization of PMP-based Control for Hybrid Electric Vehicles in a Backward-looking Simulation[J].International Journal of Automotive Technology,2014,14(4):625-635.
[17]HONG S,KIM H,KIM J.Motor Control Algorithm for an Optimal Engine Operation of Power Split Hybrid Electric Vehicle[J].International Journal of Automotive Technology,2015,16(1):97-105.
[18]ZHANG Ya-hui,JIAO Xiao-hong,LI Liang.A Hybrid Dynamic Programming-rule Based Algorithm for Real-time Energy Optimization of Plug-in Hybrid Electric Bus[J].Science China,2014,57(12):2542-2550.
[19]MINH V T,PUMWA J.Simulation and Control of Hybrid Electric Vehicles[J].International Journal of Control,Automation,and Systems,2012,10(2):308-316.
[20]SIM K,OH S M,AMKOONG C.Control Strategy for Clutch Engagement During Mode Change of Plugin Hybrid Electric Vehicle[J].International Journal of Automotive Technology,2017,18(5):901-909.
[21]MINH V T,RASHID A A.Automatic Control of Clutches and Simulations for Parallel Hybrid Vehicles[J].International Journal of Automotive Technology,2012,13(4):645-651.
[2]CANOVA M,GUEZENNEC Y,YURKOVICS H.On the Control of Engine Start/Stop Dynamics in a Hybrid Electric Vehicle[J].Journal of Dynamic Systems,Measurement,and Control,2009,131:1-12.
[3]ZHAO Z G,CHEN H J,ZHEN Z X,et al.Optimal Torque Coordinating Control of the Launching with Twin Clutches Simultaneously Involved for Dry Dualclutch Transmission[J].International Journal of Vehicle Mechanics and Mobility,2014,52(6):776-801.
[4]KIM N W,LEE D H,ZHENG C.Realization of Pmp-based Control for Hybrid Electric Vehicles in a Backward Looking Simulation[J].International Journal of Automotive Technology,2014,15(4):625-635.
[5]MA C,KANG J,CHOI W,et al.A Comparative Study on the Power Characteristics and Control Strategies for Plug-in Hybrid Electric Vehicles[J].International Journal of Automotive Technology,2012,13(3):505-516.
[6]ZHANG W,ZHANG X,ZHAO D,et al.Optimal Design of Three Planetary Gear Power-split Hybrid Powertrains[J].International Journal of Automotive Technology,2016,17(2):299-309.
[7]LIU Yong-gang,CHEN Da-qi,LEI Zhen-zhen,et al.Modeling and Control of Engine Starting for a Full Hybrid Electric Vehicle Based on System Dynamic Characteristics[J].International Journal of Automotive Technology,2017,18(5):911-922.
[8]赵治国,何宁,朱阳,等.四轮驱动混合动力轿车驱动模式切换控制[J].机械工程学报,2011,47(4):100-109.ZHAO Zhi-guo,HE Ning,ZHU Yang,et al.Mode Transition Control for Four Wheel Drive Hybrid Electric Car[J].Journal of Mechanical Engineering,2011,47(4):100-109.
[9]戴一凡,罗禹贡,李克强,等.单电动机强混合动力电动车辆的动态协调控制[J].汽车工程,2011,33(12):1007-1012.DAI Yi-fan,LUO Yu-gong,LI Ke-qiang,et al.Dynamic Coordinated Control for a Full Hybrid Electric Vehicle with Single Motor[J].Automotive Engineering,2011,33(12):1007-1012.
[10]温博轩,王伟达,项昌乐,等.混联式混合动力系统动态响应协调控制[J].哈尔滨工业大学学报,2016,48(1):72-79.WEN Bo-xuan,WANG Wei-da,XIANG Chang-le,et al.Torque Coordinated Control for the Multi Power in Parallel-series HEV[J].Journal of Harbin Institute of Technology,2016,48(1):72-79.
[11]倪成群,张幽彤,赵强.混合动力离合器结合过程的动态转矩控制策略[J].机械工程学报,2013,49(4):114-121.NI Cheng-qun,ZHANG You-tong,ZHAO Qiang.Dynamic Torque Control Strategy of Engine Clutch in Hybrid Electric Vehicle[J].Journal of Mechanical Engineering,2013,49(4):114-121.
[12]王晨,王博,深度混合动力系统发动机起动控制研究[J].汽车工程,2016,38(5):546-552.WANG Chen,WANG Bo.A Study on Engine Start Control in a Full Hybrid Electric Vehicle[J].Automotive Engineering,2016,38(5):546-552.
[13]SHI G,DONG P,SUN H Q,et al.Adaptive Control of the Shifting Process in Automatic Transmissions[J].International Journal of Automotive Technology,2017,18(1):179-194.
[14]鲍伟,李成,孔慧芳,双离合器车辆蠕动和起步非线性无静差跟踪控制与仿真[J].中国公路学报,2016,29(3):142-150.BAO Wei,LI Cheng,KONG Hui-fang.Non-linear Zero Steady-state Error Trace Control and Simulation of Dual-clutch Transmission Vehicle in Creep and Launch Processes[J].China Journal of Highway and Transport,2016,29(3):142-150.
[15]赵治国,胡笑天,姜娇龙,等,干式双离合器自动变速器起步滑模变结构协调控制及实时优化[J].机械工程学报,2012,48(24):87-105.ZHAO Zhi-guo,HU Xiao-tian,JIANG Jiao-long,et al.Slip Mode Variable Structure Coordinating Control and Real-time Optimization of Launch for Dry Dual Clutch Transmission[J].Journal of Mechanical Engineering,2012,48(24):87-105.
[16]KIM N W,LEE D H,ZHENG C,et al.Realization of PMP-based Control for Hybrid Electric Vehicles in a Backward-looking Simulation[J].International Journal of Automotive Technology,2014,14(4):625-635.
[17]HONG S,KIM H,KIM J.Motor Control Algorithm for an Optimal Engine Operation of Power Split Hybrid Electric Vehicle[J].International Journal of Automotive Technology,2015,16(1):97-105.
[18]ZHANG Ya-hui,JIAO Xiao-hong,LI Liang.A Hybrid Dynamic Programming-rule Based Algorithm for Real-time Energy Optimization of Plug-in Hybrid Electric Bus[J].Science China,2014,57(12):2542-2550.
[19]MINH V T,PUMWA J.Simulation and Control of Hybrid Electric Vehicles[J].International Journal of Control,Automation,and Systems,2012,10(2):308-316.
[20]SIM K,OH S M,AMKOONG C.Control Strategy for Clutch Engagement During Mode Change of Plugin Hybrid Electric Vehicle[J].International Journal of Automotive Technology,2017,18(5):901-909.
[21]MINH V T,RASHID A A.Automatic Control of Clutches and Simulations for Parallel Hybrid Vehicles[J].International Journal of Automotive Technology,2012,13(4):645-651.