增程式电动汽车增程器的控制策略研究

摘要

针对增程式电动汽车的动力分配问题,以提高续驶里程为设计目标,提出了一种考虑空调/暖风开启的多工作点控制策略,采用粒子群优化算法优化发动机工作点,并通过Matlab/Simulink和Advisor仿真平台,在NEDC工况下对优化后的多工作点策略进行了仿真验证.结果表明:优化后的多工作点控制策略符合设计要求,可提高续驶里程,该控制策略相较于忽略空调/暖风开启的三工作点控制策略,其汽车能量利用率有明显的提高.%In view of the problem of the energy distribution in extended-range electric vehicle,improving driving distance is designed as an assignment by proposed the multiple operation points control strategy at the condition of opening air conditioner/ heater.Using Particle Swarm Optimize(PSO) multiple best points of engine,optimization about multiple points strategy is verified though simulation by Matlab/Simulink and Advisor in NEDC.The result of test shows that the control strategy which fulfilled the designing requirement can improve the driving distance after optimization,and can improve the efficiency of energy under comparing to three points strategy which ignored air conditioner/heater.