提示
基于系统效率最优的两挡amt经济性换挡规律研究
首发时间：2018-04-20
摘要：为了发挥两挡机械自动变速器（amt）在提高纯电动汽车经济性方面的优势，进行了两挡变速器效率的理论建模。在此基础上，综合考虑动力电池充放电效率、电动机/发电机效率以及两挡变速器的效率，以动力传动系统效率最优为目标，分别在驱动工况和再生制动工况下确定了两挡amt的最佳经济性换挡规律。并在matlab/simulink平台上，建立纯电动汽车前向系统仿真模型，分别在不同加减速工况和udds城市循环工况下对所提出的经济性换挡规律进行仿真。结果表明，与传统的基于电机效率最优的换挡控制规律相比，本文提出的换挡控制规律明显提高了整车系统效率，能较好地提高整车的能耗经济性。
关键词： 变速器效率建模 两挡机械自动变速器 经济性换挡规律 系统效率
for information in english, please click here
economic shift rule for two-speed amt based on the optimal system efficiency
abstract：in order to exert the advantages of two gear mechanical automatic transmission (amt) in improving the economical efficiency of the pure electric vehicle, the theoretical modeling of the two gear transmission efficiency is carried out. based on this, considering the battery charge and discharge efficiency, the motor/generator efficiency and two-speed transmission efficiency, identified optimal economy shift rule of the two-speed amt under the driving condition and regenerative braking condition. on the matlab/simulink platform, the simulation model of pure electric vehicle is established. the economic shift schedule is simulated under different acceleration and deceleration conditions and udds urban cycle. the results show that compared with the traditional optimal shift rule based on the optimal efficiency of the motor, the shift rule proposed in this paper can obviously improve the efficiency of the whole vehicle system, and it can improve the energy consumption of the vehicle.
keywords： transmission efficiency modeling two-speed automatic mechanical transmission economic shift rule system efficiency
论文图表：
引用
导出参考文献
no.****
动态公开评议
共计0人参与
勘误表
基于系统效率最优的两挡amt经济性换挡规律研究
评论
全部评论