基于滑移率的双电机电动汽车转矩分配系统  

Torque distribution system of double motor electric vehicle based on slip ratio

作　　者：郭帅[1] 李军伟[1] 高松[1] 李研强[2] 

机构地区：[1]山东理工大学交通与车辆工程学院,山东淄博255049 [2]山东省科学院自动化研究所,山东济南250014

出　　处：《广西大学学报（自然科学版）》2016年第6期1797-1806,共10页Journal of Guangxi University（Natural Science Edition）

基　　金：山东省自然科学基金项目(ZR2015EM054);山东省重点研发计划项目(2015GGX105009)

摘　　要：针对双电机驱动电动汽车车轮打滑引起的动力损失问题,引入采用模糊PID(比例积分微分)控制算法的踏板调整系数,建立了基于车轮滑移率的转矩动态优化分配方法,并利用美国NI公司的Motohawk搭建了整车模型和策略模型;在Veri Stand的基础上研发了面向整车模型的上位机控制系统,应用Kvaser将策略下载到整车控制器内,实现了在D2P(快速原型设计)设备上的硬件在环仿真测试。测试结果表明,所建立的转矩分配策略可以合理的将转矩分配到前后轴上,同时可将前后轮的滑移率有效控制在10%以内,提高了电动汽车的效率和性能,为双电机电动汽车的转矩分配提供了有益参考。The two-axis double motor drive electric vehicle torque distribution strategy was studied,and the dynamic optimization method was developed based on the slipping rate while using vague PID（ proportion,integral,differential） control algorithm to calculate the pedal adjustment coefficient,then the model of the vehicle model and strategy was built by Motohawk developed by NI（ National Instruments）. And the vehicle model was imported into Veri Stand to build the upper monitor control system of the vehicle model,then the model application should be downloaded to the vehicle controller by the Kvaser. At last,the hardware in the loop simulation should be applied to D2P（ rapid prototype） devices with all kinds of test board. Results show that the design of the torque distribution strategy can distribute the torque reasonably and make the wheels slip ratio within10% to improve the efficiency and performance of electric vehicles effectively. This strategy will provide a useful reference for the torque distribution of electric vehicle with double motors.

关 键 词：双电机电动汽车 转矩分配 整车控制器 硬件在环仿真 

分 类 号：U461[机械工程—车辆工程]