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A model for the hybrid electric vehicle (HEV) powertrain simulation has been constructed with a specific power control strategy for an electric-assisted HEV in parallel configuration. The HEV was built by the University of Tennessee, Knoxville. Experimental procedures and data analysis for characterizing power output from the battery and the auxiliary power unit (APU) are presented. The model is implemented based on the empirical formulation and power control scheme, a power control strategy by means of throttle position. It also incorporates regeneration and regenerative braking for battery capacity recovery. The model allows for real time evaluation of a wide range of parameters in vehicle operation as a HEV, a pure electric vehicle, or as a conventional vehicle.
Intelligent Transportation Systems, IEEE Transactions on (Volume:3 , Issue: 4 )
Date of Publication: Dec 2002