Battery system requirements for battery dominant hybrid electric vehicles

Abstract

Battery system design requirements for battery dominant-grid charged hybrid electric vehicles are discussed from a duty cycle and system point of view. The purpose is to capture all of the design considerations relevant to the battery pack, and to estimate the affect of these requirements on the choice of battery pack size and control limits. Data from dynamometer testing of battery dominant prototype vehicles Joule and Coulomb built by UC Davis is compared with theoretical data to provide insight into the system design.