基于参考模型的复合功率分流系统模式切换中的转矩协调控制*

doi:10.19562/j.chinasae.qcgc.2018.010.002

汽车工程 ›› 2018, Vol. 40 ›› Issue (10): 1132-1138.doi: 10.19562/j.chinasae.qcgc.2018.010.002

基于参考模型的复合功率分流系统模式切换中的转矩协调控制^*

赵治国, 蒋蓝星, 李蒙娜, 王茂垚

同济大学新能源汽车工程中心,上海 201804

收稿日期:2018-01-29 出版日期:2018-10-25 发布日期:2018-10-25
通讯作者: 赵治国,教授,博士,E-mail:zhiguozhao@tongji.edu.cn。
基金资助:
*国家自然科学基金(51675381)和泰山产业领军人才项目(L201608)资助。

Torque Coordinated Control During Mode Switching of a Compound Power-Split Hybrid System Based on Reference Model

Zhao Zhiguo, Jiang Lanxing, Li Mengna, Wang Maoyao

Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804

Received:2018-01-29 Online:2018-10-25 Published:2018-10-25

摘要/Abstract

摘要： 针对双行星排复合功率分流混合动力系统纯电动和电动无级变速器混合动力模式之间切换时车辆平顺性较差的问题,提出了一种转矩协调控制策略。通过系统动力学分析,建立了模式切换过程的动态模型。基于参考模型设计模式切换转矩分配策略和冲击度补偿控制策略,动态分配不同阶段的动力源转矩,并根据平顺性目标调节电机转矩变化率,补偿系统转矩波动。仿真和台架试验结果表明,所提出的策略可满足模式切换过程车辆动力性和发动机起动性要求,并将冲击度降低至15.5m/s³以内,满足国家标准要求。

关键词: 功率分流, 模式切换, 协调控制, 参考模型

Abstract: Aiming at the problem of poor ride comfort in a compound power-split hybrid system with double-row planetary gear sets during switching between pure electric and e-CVT modes, a torque coordinated control strategy is proposed. A system dynamics analysis is conducted and a dynamics model for mode switching is established. The strategies of torque assignment and jerk compensation control are devised based on reference model, the torques of different power sources in different stages are dynamically assigned, and the changing rate of motor torque is adjusted according to the target of ride comfort to compensate the torque fluctuation of hybrid system. The results of simulation and bench test show that the strategy proposed can meet the requirements of the power performance and startability of vehicle in mode switching process with the jerk being lowered to below 15.5m/s³, meeting the requirements of national standard

Key words: power-split, mode switching, coordinated control, reference model

赵治国, 蒋蓝星, 李蒙娜, 王茂垚. 基于参考模型的复合功率分流系统模式切换中的转矩协调控制^*[J]. 汽车工程, 2018, 40(10): 1132-1138.

Zhao Zhiguo, Jiang Lanxing, Li Mengna, Wang Maoyao. Torque Coordinated Control During Mode Switching of a Compound Power-Split Hybrid System Based on Reference Model[J]. , 2018, 40(10): 1132-1138.

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基于参考模型的复合功率分流系统模式切换中的转矩协调控制^*

Torque Coordinated Control During Mode Switching of a Compound Power-Split Hybrid System Based on Reference Model

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