【摘要】 开发了带全浮式ISG电机的并联轻度混合动力轿车,在Matlab/Simulink中建立了整车模型,并对发动机和ISG电机的输出转矩进行了匹配分析。分别在电机试验台和转鼓试验台上进行了ISG电机性能试验和混合动力轿车启动时的排放及油耗试验。结果表明:发动机和ISG电机的输出转矩能满足循环工况需求;在电动和发电模式下,ISG电机均有较高的输出效率;启动时发动机点火提前角从上止点后5°CA推迟到上止点后15°CA,NO_x排放量约降低24.6%;混合动力车消除了原车启动时混合气过浓现象,100km油耗约降低14.2%。更多还原

【Abstract】 A parallel mild hybrid electric car(HEC)with floating integrated starter/generator(ISG)motor is developed,the model for HEC is built with Matlab/Simulink software,and the matching analysis between output torques of engine and ISG motor is performed.The performances of ISG motor and the emission and fuel consumption of HEC are tested on the motor test bench and the chassis dynamometer respectively.The results indicate that the output torques of the engine and the ISG motor can meet the requirements of cycle conditions;The ISG motor always has high efficiency whenever in motor or generator mode.Compared to the original HEC,the NO_x emission reduces by 24.6%when ignition angle is postponed from 5℃A ATDC to 15℃A ATDC;the phenomenon of over rich fuel-air mixture at start phase is eliminated in HEC with fuel consumption lowered by 14.2%.更多还原