混联式混合动力客车发动机优化控制策略  

Development of control strategy for a series-parallel hybrid electric bus based engine efficiency optimization

作　　者：林歆悠[1] 孙冬野[1] 尹燕莉[1] 郝允志[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《重庆大学学报（自然科学版）》2012年第7期13-18,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(51075410)

摘　　要：以提高发动机工作效率为目标,根据一款新型混联式混合动力客车的结构特点,划分发动机的工作区域,采用一种功率均衡的控制策略,以电池功率为控制变量对发动机的工作点进行优化,并且引入了电池荷电状态PI控制函数。基于Matlab/simulink平台建立前向整车仿真模型,通过仿真结果表明:其燃油经济性与基于等效燃油最小控制策略相比提高6.74%,同时电池SOC能够控制在预定的范围内运行。To improve efficiency of engines,according to the characters of a novel series-parallel hybrid electric bus（SPHEB） to define the operation area of ice,a kind of power balancing control strategy is adopted and the battery power is used as a variable to optimize the efficiency of fuel converter,and the PI control is implemented to control the SOC balance.To validate the proposed strategy’s effectiveness and reasonableness,a forward model is built based on simulink and the simulation results demonstrate that the proposed strategy can successfully improve the efficiency of fuel economy up to 6.74% compared with that of equivalent fuel minimum control strategy,while the battery SOC is also limited in the desired range.

关 键 词：混合动力客车 控制策略 柴油发动机 燃油经济性 系统效率 

分 类 号：U462.3[机械工程—车辆工程]