混合动力汽车E-H模式切换中扭矩协调控制策略研究  

Research on torque coordinated control strategy for hybrid electric vehicle in E-H mode switch

作　　者：孔慧芳[1] 王瑞[1] 鲍伟[1] KONG Huifang WANG Rui BAO Wei(School of Electrie Engineering and Automation, Hefei University of Technology, Hefei 230009, Chin)

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2017年第3期289-293,298,共6页Journal of Hefei University of Technology：Natural Science

基　　金：国家"十二五"科技支撑计划资助项目(2014BAG06B02);中央高校基本科研业务费专项资金资助项目(2014HGCH0003)

摘　　要：在混合动力汽车进行E(electric drive mode,纯电动模式)-H(hybrid drive mode,混合驱动模式)切换时,针对2个动力源响应特性差异、离合器接合等原因造成动力传递不平稳及整车冲击的问题,文章制定了扭矩协调控制策略。整个扭矩协调控制策略按发动机的起动、调速和动力接入等3个不同阶段制定,采用Matlab/Simulink搭建混合动力汽车模式切换控制策略模型和整车模型,对该策略的有效性进行验证。仿真结果表明,该策略能够减小扭矩波动和整车冲击度,有效提高模式切换过程的平顺性。In the hybrid electric vehicle（HEV） mode switch from the electric drive mode（E） to the hy- brid drive mode（H）, the difference of the response characteristics of the two power sources and clutch engagement will cause the problems of the unstable power transmission and the impact of the vehicle. To solve this problem, the torque coordinated control strategy is formulated. The entire torque coor- dinated control strategy is formulated according to three different stages of engine starting, speed gov- erning and power access. HEV physical model and mode-switching dynamics model are built by Matlab/Simulink simulation to verify the effectiveness of the strategy. The simulation results show that the strategy can reduce the torque fluctuation and the jerk, effectively improving the smoothness in the process of mode switch.

关 键 词：混合动力汽车 扭矩协调控制 模式切换 冲击度 

分 类 号：TP271.4[自动化与计算机技术—检测技术与自动化装置]