中北大学学报（自然科学版）2018，Vol.39Issue(2)：159-165,7.DOI:10.3969/j.issn.1673-3193.2018.02.009
纯电动汽车经济性换挡规律驱动力波动控制研究
Tractive Effort Fluctuation Control Study on the Shift Schedule of Fuel Economy of Pure Electric Vehicle
摘要
Abstract
Driving force fluctuates as a pure electric vehicle shifts with the shift schedule of fuel econo-my.For this reason,the tractive effort fluctuation control strategy was proposed.There was a correla-tion between the driving motor current and the output torque of the motor.A model of motor output torque estimation based on radial basis neural network was designed.According to the torque estima-tion,the driving force was calculated.Compensation torque required by driving motor to eliminate driv-ing force fluctuation was analyzed.The dynamic simulation system of pure electric vehicle was estab-lished by AMESim software to verify the accuracy of torque estimation,and experimental results used control strategy was compared with unused.The experimental results show that the error rate of torque estimation is less than 0.09.The curve of vehicle speed data change is smooth before and after the shift, and the power and driving comfort of the vehicle is improved.关键词
纯电动汽车/经济性换挡规律/驱动力波动/控制策略Key words
pure electric vehcile/shift schedule of fuel economy/tractive effort fluctuation/control strategy分类
机械制造引用本文复制引用
梁晓华,孙虎儿,武超..纯电动汽车经济性换挡规律驱动力波动控制研究[J].中北大学学报（自然科学版）,2018,39(2):159-165,7.基金项目
山西省自然科学基金资助项目(2014011024-6) （2014011024-6）
