考虑驾驶意图的P2.5-PHPS纯电与发动机切换协调控制  

Dynamic coordinated control of P2.5 plug-in hybrid configuration from pure electric to engine mode switching process considering driver’s intention

作　　者：罗勇[1,2] 李莉莎 韦永恒 李豪 孙强 LUO Yong;LI Lisha;WEI Yongheng;LI Hao;SUN Qiang(Key Laboratory of Advanced Manufacturing Technology for Automobile Parts,Chongqing University of Technology,Chongqing 400054,China;Ningbo Shenglong(Group)Co.,Ltd.,Technology Center,Ningbo 315199,China)

机构地区：[1]重庆理工大学,汽车零部件先进制造技术教育部重点实验室,重庆400054 [2]宁波圣龙(集团)有限公司,技术中心,宁波315199

出　　处：《汽车安全与节能学报》2024年第6期875-885,共11页Journal of Automotive Safety and Energy

基　　金：国家自然科学基金资助(51305475);重庆市教委科学技术研究项目(KJQN202201125);重庆理工大学重大科研项目同步开展基础及应用基础研究(2022TBZ003)。

摘　　要：为保证P2.5插电式混合动力系统(PHPS)由纯电驱动模式向发动机驱动模式切换过程的平稳性,对该模式切换过程中双动力源和双离合器(DCT)动态协调控制策略开展研究,并搭建系统模型对控制效果进行仿真分析。将P2.5-PHPS纯电至发动机驱动模式切换过程划分为不同阶段,建立系统多阶段模式切换过程动力学模型。利用P2.5驱动电机扭矩响应快速的优势,补偿发动机和离合器扭矩响应滞后引起的波动,结合驾驶员操作意图,制定模式切换过程各阶段的发动机、电机及离合器动态协调控制策略。搭建系统模型进行仿真分析,结果表明:在纯电至发动机模式切换过程中,整车最大纵向冲击度不超过5 m/s^(3),离合器滑磨功控制在3 kJ内,满足平顺性要求。A study was conducted on the dynamic coordinated control strategy of dual power sources was built with a Double Clutch Transmission(DCT)during the mode switching process,and with a system model for simulating and analyzing the control effect to ensure the smoothness of the transition from pure electric drive mode to engine drive mode in the P2.5 Plug in Hybrid Power System(PHPS).Divided the P2.5-PHPS pure electric to engine drive mode switching process into different stages and established a dynamic model for the multi-stage mode switching process of the system.Taking advantage of the fast torque response of the P2.5 drive motor,compensating for the fluctuations caused by the lagging torque response of the engine and clutch,and combining with the driver's operating intention,developing dynamic coordinated control strategies for the engine,motor,and clutch in each stage of the mode switching process.Built a system model for simulation analysis.The results show that during the transition from pure electric to engine mode,the maximum longitudinal impact of the vehicle does not exceed 5 m/s^(3),and the clutch slip and wear power is controlled within 3 kJ,which meet the smoothness requirements.

关 键 词：插电式混合动力(PHPS)汽车 P2.5构型混动系统 双离合变速器(DCT) 动态协调控制 模式切换控制 

分 类 号：U467.14[机械工程—车辆工程]