为改善环境污染并降低能耗,研究了并联式混合动力汽车动力总成的发动机性能控制。基于发动机运行效率的测试数据确定了最优工作控制点,结合电机对动力电池的充放电控制影响,优化设计了发动机工作曲线模糊控制策略,并运用ADVISOR软件与电动辅助控制策略进行了仿真对比分析。研究结果表明,由于优化后的模糊控制策略考虑了电机与发动机的集成控制,使发动机运行具有较好的燃油经济性和优良的排放性,且动力性基本保持不变,从而进一步提高了混合动力汽车的节能减排水平。
To alleviate environment pollution and reduce energy consumption,the engine performance control of Parallel Hybrid Electric Vehicle(PHEV)was researched.Based on the testing data of engine operating efficiency,the most desirable controlling point was determined.By combining with control influence of motor,the operation curve fuzzy control strategy of engine was optimized.Simulation comparison analysis was conducted with software ADVISOR and electric assisted controlling strategy,and the results indicated that fuzzy control strategy which considered integrated control motor and engine could reduce fuel consumption and emission.Meanwhile,dynamic performance kept invariant.The research could further improve the level of energy conservation and emission reduction of HEV.