In this paper, the assistant power system of hybrid electrical vehicle (HEV) was an engine with small displacement, which could charge the battery and directly drive the air-conditioning system.
研究开发了混合动力电动车(HEV)中的辅助动力系统，采用一台小排量的发动机组成发电机组，既可以给电池组充电，发动机也可以直接驱动空调系统。
To improve the switch frequency of the bidirectional DC/DC converters in Hybrid Electrical Vehicle(HEV), a novel three-level topology of the bidirectional DC/DC converter is presented in this paper.
将三电平技术应用到双向DC/DC装置中，可以提高混合动力汽车驱动系统中双向DC/DC装置的开关频率，为此提出了一种新的三电平双向DC/DC变换器拓扑。
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