Electric vehicle (EV) development has become a major topic for attention within academia and industry in recent years. The development and testing of the performance and reliability of EV systems requires a test platform where realistic operating conditions can be created. The design and development of a test platform for EV power train systems and components is outlined. The system comprises of a 165 kW Froude Hofmann Eddy Current (EC) dynamometer which can be programmed to provide a variety of load characteristics on a dynamic basis. An integrated control system allows the dynamometer and the system under test to be controlled simultaneously using CAN bus technology. Several data gathering tools exist to monitor the performance and characteristics of the system under test, which include a second by second recording of all the data as well as high speed recording for transient effects. Additionally systems have been developed to allow drive cycles to be constructed based on real world driving using GPS and Mapping technology. Applications of the system include reliability analysis of vehicle components under real world conditions, development of predictive and condition based maintenance strategies for electric vehicles and investigation of thermal management in EV power trains.
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