Optimization and Model Validation of Operation Control Strategies for a Novel Dual-Motor Coupling-Propulsion Pure Electric Vehicle
Optimization and Model Validation of Operation Control Strategies for a Novel Dual-Motor Coupling-Propulsion Pure Electric Vehicle
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DOI：
10.3390/en11040754
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发表时间：
2018-03
期刊：
影响因子：
3.2
通讯作者：
Jianjun Hu;Lingling Zheng;Meixia Jia;Yi Zhang;Tao Pang
中科院分区：
文献类型：
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作者：
Jianjun Hu;Lingling Zheng;Meixia Jia;Yi Zhang;Tao Pang
纯电动汽车驱动电机运行条件的严格要求促使纯电动汽车向更复杂的配置方向发展。多动力源动力总成配置是降低驱动电机制造难度的有效技术之一。然而，现有的研究主要集中在动力系统的优化设计和发动机和电机之间的混合动力电动汽车的功率分配，这是不适合PEVs。本文提出了一种新型的双电机耦合推进动力系统，以提高动力系统的动力性和经济性的纯电动汽车。所设计的动力传动系统可实现单电机驱动和双电机耦合驱动两种模式。该方法对驱动模式进行了划分，并根据系统效率最优原则，对不同驱动模式进行了功率分配，提高了系统的性能。此外，通过防止模式切换期间的急动来确保驾驶舒适性的模式切换策略被结合到系统中。在MATLAB/Simulink中实现的双电机电动汽车模型进行了比较评估的结果表明，建议的动力系统的里程和动态性能显着优于传统的单电机动力系统。
The strict operational condition of driving motors for vehicles propels the development of more complicated configurations in pure electric vehicles (PEVs). Multi-power-source powertrain configurations are one of the efficient technologies to reduce the manufacturing difficulty of driving motors. However, most of the existing studies are predominantly focused on optimal designs of powertrains and power distribution between the engine and motor of hybrid electric vehicles, which are not appropriate for PEVs. This paper proposes a novel dual-motor coupling-propulsion powertrain system that improves the dynamic and economic performance of the powertrain system in PEVs. The proposed powertrain system can realize both the single-motor driving mode and dual-motor coupling driving mode. The driving modes are divided and a power distribution strategy for the different driving modes based on an optimal system efficiency rule is employed, which enhances the performance of the proposed system. Further, a mode-switching strategy that ensures driving comfort by preventing jerk during mode switching is incorporated into the system. The results of comparative evaluations that were conducted using a dual-motor electric vehicle model implemented in MATLAB/Simulink, indicate that the mileage and dynamic performance of the proposed powertrain system are significantly better than those of the traditional single-motor powertrain system.