This paper explains the method by which a small “Neighborhood” fuel cell hybrid electric vehicle (FCHEV) was modeled using Matlab/Simulink and validated using National Instruments Data Acquisition equipment and a chassis dynamometer. The vehicle is a modified four-passenger Global Electric Motorcar (GEM), which was designed for city or neighborhood operation where maximum speed limits do not exceed 35 mph. The stock 72-Volt shunt wound GE motor is powered by six 12-Volt Trojan lead-acid batteries. The vehicle was converted to a FCHEV by integrating a Ballard Nexa™ fuel cell module and a Spectrodyne Systems DC-DC converter. These devices act as a constant current range extending supplemental power source. The goals of the creation of the model include predicting motor and battery performance while driving under transient conditions and predicting the range of the vehicle while using one or several fuel cell stacks.

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