System-level Modeling and Simulation of a Permanent Magnet Synchronous Motor for an Integrated Starter Alternator

This paper first presents an overview of various hybrid electric vehicle architectures with an emphasis on the Integrated Starter Alternator (ISA) hybrid architecture. The operation modes of an ISAsystem and the constraints for an electric machine acting as an ISA are detailed. Finally a model for a ISA hybrid vehicle, developed in AMESim is presented and the results of a simulated drive cycle are assessed.