This paper presents an overview of multi-machine drive systems for electric vehicles (EVs) and hybrid electric vehicles (HEVs), with a particular focus placed on the different system architectures and their key technologies. Some typical configuration topologies such as two-machine system for HEV, wheel drive system, multi-motor drive systems and compoundstructure integrated machines system are investigated in this paper. Some fundamental technologies for multi-machine drive systems are discussed, with emphas…
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