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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。
In order to improve the fuel efficiency and emission performance of plug-in hybrid electric vehicle, a fuzzy control strategy that can achieve the reasonable distribution of the required torque between the engine and the driving motor is designed. The method of genetic algorithm to optimize the fuzzy control rules is introduced in detail . The optimization results show that the optimized fuzzy control strategy improves the fuel economy and emission performance before optimization, and makes the engine operating point better concentrated in the high-efficiency area. The research provides an effective means for operators and experts to make fuzzy control rules.