Loss Analysis of Hybrid Electric Vehicle Inverters

The analysis of electrical losses of hybrid electric vehicle (HEV) inverters is significant for improved fuel efficiency for HEVs. To analyze the breakdown of electrical losses in LA-4 Cycle or under other similar driving conditions, measurement and calculation methods have been developed to ascertain losses attributable to different parts of HEV inverters. To determine electrical losses, the methods use voltages and currents in HEV inverters measured with a vehicle-mounted virtual and real simulator (VRS).