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DEVELOPMENT OF PLUG-IN HYBRID ELECTRIC LIGHTAND MEDIUM-DUTY COMMERCIAL VEHICLES

ROBERT GRAHAM Electric Power Research Institute 3412 Hillview Ave., Palo Alto, CA 94303 THOMAS BRADLEY Thomas H. Bradley Consulting 250 W. J Street Benicia, CA 94510 MARK DUVALL Electric Power Research Institute 3412 Hillview Ave., Palo Alto, CA 94303

Abstract

The Electric Power Research Institute (EPRI) is currently conducting a long-term project to promote the development of grid-connected, plug-in hybrid electric vehicles (PHEVs) for the commercial automotive market. This collaborative effort with partners in electric utilities, the automotive industry and government includes subtasks of specification development, prototype vehicle design and construction, and PHEV demonstration programs. The preliminary powertrain configuration and battery specifications are discussed and three schemes for energy management are introduced. Simulations of the fuel consumption of a PHEV delivery van are performed and the results are translated into fleet-based results using a mileage weighted probability factor. This analysis allows comparison of the relative fuel consumption of the proposed vehicle energy management strategies.

Keywords: “Plug-in Hybrid”, “Hybrid Strategy”, “Truck”, “Van”, “Simulation”

1.

Introduction

In collaboration with the Federal Transit Administration, Long Island Power Authority, South Coast Air Quality Management District, and other industry and government partners, EPRI has led the development of plug-in hybrid electric vehicle (PHEV) architectures for commercial vehicle applications. The PHEV powertrain architecture provides substantial all-electric range and combines high fuel economy with lower emissions and operating costs. PHEVs are suitable for numerous commercial vehicle platforms, including shuttle buses, paratransit vehicles, light and medium duty delivery vans, and utility work vehicles. This electric range capability of the vehicle provides...