分布式驱动电动汽车经济性转矩优化分配策略  

Research on Optimal Torque Distribution Strategy for Distributed Drive Electric Vehicle

作　　者：何浩瀛[1] 张海川 任周强 郑字琛 HE Haoying;ZHANG Haichuan;REN Zhouqiang;ZHENG Zichen(College of Optoelectronic Manufacturing,Zhejiang Industry Trade Vocational College,Wenzhou Zhejiang 325000,China;School of Automobile,Chang’an University,Xi’an 710064,China;BYD Auto Co.,LTD.,Xi’an 710119,China)

机构地区：[1]浙江工贸职业技术学院光电制造学院,浙江温州325000 [2]长安大学汽车学院,西安710064 [3]比亚迪汽车有限公司,西安710119

出　　处：《微电机》2023年第6期44-49,54,共7页Micromotors

基　　金：国家自然科学基金项目(52002034);陕西省科技重大专项(2020zdzx06-01-01);陕西省重点产业创新链(群)项目(2020ZDLGY16-01,2020ZDLGY16-02)。

摘　　要：针对分布式驱动电动汽车,本文提出一种以经济性为目标的驱动轮转矩优化分配策略,该控制策略首先基于模糊控制识别驾驶意图,获取整车需求扭矩,然后以整车驱动能耗最优为目标,基于动态规划算法离线计算前、后轴电机经济性转矩分配系数,从而在保证计算速度的同时提高车辆的经济性。最后,Carsim/Simulink联合仿真结果表明,本文所提出的驱动轮转矩控制策略有效改善了驱动电机的工作效率,在循环工况测试中,动力电池SOC增加了0.27%,能量消耗降低了4.19%,提高了车辆的经济性能。This paper proposed an drive torque distribution optimization strategy aiming at economy for the distributed drive electric vehicle.Firstly,this control strategy identified the driving intention based on fuzzy control and obtained the required torque of the whole vehicle.Then,this strategy took the optimal driving energy consumption of the whole vehicle as the goal,and obtained the economic torque distribution coefficients of the front and rear axle motors through offline calculation based on the dynamic programming algorithm,which ensured the calculation speed and improves the economy of the vehicle.Finally,Carsim/Simulink showed that the proposed strategy in this paper effectively improved the working efficiency of the drive motor and the economic performance of the vehicle.The SOC of the power battery is increased by 0.27%and the energy consumption is decreased by 4.19%in the cycle test.

关 键 词：汽车工程 分布式驱动电动汽车 转矩分配 经济性 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TP273[自动化与计算机技术—计算机科学与技术]