【摘要】 以提高插电式混合动力汽车燃油经济性和排放性能为目标,设计了能够实现需求转矩在发动机和驱动电机之间合理分配的模糊控制策略,并详细介绍了遗传算法优化模糊控制规则的方法。优化结果表明,优化后的模糊控制策略较优化前提高了燃油经济性和排放性能,并使发动机工作点较好地集中在高效区域。研究内容可为操作者和专家制定模糊控制规则提供有效的手段。更多还原

【Abstract】 Taking the plug- in hybrid electric vehicle as the research object,in order to improve the fuel economy and emission performance,a fuzzy control strategy which can realize the reasonable distribution of demand torque between the engine and the drive motor is designed,and the method of genetic algorithm to optimize fuzzy control rules is introduced in detail. The optimization results show that,the optimized fuzzy control strategy can improve the fuel economy and emission performance compared with the results before optimization,and make the engine working points well concentrated in high efficient area. The research contents will provide operators and experts an effective way to design fuzzy control rules.更多还原