Modeling of hybrid electric vehicle batteries
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Abstract
Battery models are essential in estimating the performance, life and operating characteristics, which are required for hybrid electric vehicle analysis. The battery discharge and charge models are developed and explained in detail. The two models are directly based on the empirical data from literature and manufacturers data sheet. Detail analysis in the development of empirical equations using interpolation and curve fitting methods is provided. Datafit 8.0.32 and TableCurve2D are used to fit the data and Simulink is used in developing the model. Gassing which affects the performance characteristics of batteries is included in the charge model. The overall battery model is assumed to be in a vehicle and tested for a driving cycle to observe the simulation results.