[1]张农,周石磊,朱波,等.双电机混合动力汽车起步与换挡过程协调控制[J].长安大学学报(自然科学版),2019,39(03):117-126.
 ZHANG Nong,ZHOU Shi lei,ZHU Bo,et al.Launching and gear shifting coordinated control of a two motor HEV driving system[J].Journal of Chang’an University (Natural Science Edition),2019,39(03):117-126.
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双电机混合动力汽车起步与换挡过程协调控制()
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长安大学学报(自然科学版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
第39卷
期数:
2019年03期
页码:
117-126
栏目:
交通工程
出版日期:
2019-05-15

文章信息/Info

Title:
Launching and gear shifting coordinated control of a two motor HEV driving system
作者:
张农周石磊朱波张邦基郑敏毅
(1. 湖南大学 汽车车身先进设计制造国家重点实验室,湖南 长沙 410082; 2. 合肥工业大学 汽车工程技术研究院,〖JP〗安徽 合肥 230009; 3. 合肥工业大学 汽车与交通工程学院,安徽 合肥 230009)
Author(s):
ZHANG Nong ZHOU Shilei ZHU Bo2 ZHANG Bangji ZHENG Minyi
(1. State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, Hunan, China; 2. Automotive Research Institute, Hefei University of Technology, Hefei 230009, Anhui, China; 3. School of Automotive and Transportation Engineering, Hefei University of Technology, Hefei 230009, Anhui, China)
关键词:
汽车工程动力中断协调控制混合动力汽车联合仿真
Keywords:
automotive engineering power interruption coordinated control hybrid electric vehicle cosimulation
文献标志码:
A
摘要:
针对采用自动变速箱(AMT)的混合动力汽车存在换挡动力中断问题,提出一种新型双电机混合动力驱动系统,该系统主要包括1台发动机、2个电机和1个四挡变速箱。通过控制发动机、电机、离合器与同步器的工作状态,该混合动力系统可实现纯电动驱动、发动机和电机并联驱动、串联驱动、制动能量回收以及行车发电等多种工作模式。采用集中质量法和牛顿第二定律对该驱动系统进行动力学分析,将其等效为质量弹簧阻尼系统,并建立动力学方程。通过查表法建立了发动机和电机模型。结合混合动力驱动系统结构特点,设计模式切换和换挡过程的控制策略,在模式切换和换挡过程中,结合发动机和电机的扭矩响应特性,对发动机和电机输出扭矩进行协调控制。采用基于发动机输出扭矩的电机扭矩补偿策略维持汽车驱动扭矩,避免出现换挡动力中断现象。基于AMESim和MATLAB/Simulink软件平台搭建整车模型及控制策略模型,并对模式切换和换挡过程进行仿真分析。研究结果表明:双电机混合动力驱动系统可实现车辆换挡过程中输出扭矩平顺变化,无动力中断现象;通过限制发动机和电机的扭矩变化率,以及离合器和同步器等执行机构的分离接合速度,可将模式切换和换挡过程的冲击度控制在合理范围内。
Abstract:
To solve the problem of power interruption during gear shifting of AMT in traditional hybrid electric vehicle (HEV) with automatic transmission, a HEV system that consists of one engine, two motors, and transmission with four gear ratios was proposed. By controlling the engine, motors, clutches, and synchronizers of hybrid driving system, it could work in electrical driving mode, parallel hybrid driving mode, series hybrid driving mode, regenerative braking mode, and driving charging mode. The system was equivalent to a massspringdamping system adopting the lump inertia method and Newtons second law, from which the dynamic equations were built. The engine model and electric motor model were built through the lookup table method. The modeswitching control strategy and gearshifting control strategy were designed according to the driving system structure characteristics. The output torque of the engine and motors were coordinately controlled during mode switching and gear shifting based on the torque response characteristics. The electric motor torque compensation control strategy based on engine output torque was designed to maintain the vehicle driving torque and eliminate torque interruption. The vehicle model and control model were built with the AMESim and MATLAB/Simulink software, which were used to simulate the vehicle launching process and gear shifting process. The results show that the HEV system ensures the smooth change of output torque without power interruption during gear shifting. Vehicle jerks during mode switching and gear shifting are limited, by controlling the change rate of engine and motor output torque, as well as engaging and disengaging the speed of clutches and synchronizers. 4 tabs, 17 figs, 22 refs.

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更新日期/Last Update: 2019-05-23