Hybrid shuttle bus using ultracapacitors

The Electric Vehicle Institute, College of Technology at Bowling Green State University in Ohio has developed a diesel/electric hybrid propulsion system. This system has been installed in a 27 passenger shuttle bus. This bus has recently been put into shuttle service on campus in order to collect application data, receive feedback from professional operators and provide a demonstration of the suitability of the system for service. This paper describes the hybrid system, explains the operation, and elaborates on the reason for choosing the electrical energy storage system type, ultracapacitors