New Hybrid Bus Prototype for Clean Urban Transportation

The objective of this paper is to show the design and definition of a clean electric bus prototype for the urban transportation in the city of Zaragoza (Spain). For this aim we have used, as general initial data, the bodywork of the HABIT City Class from the bus maker company HISPANO and a double energy source (fuel cell as a primary energy source and flywheels as auxiliary one) which feeds two permanent magnet synchronous electric motors inserted and directly coupled with the rear wheels (hub electric motors). We have selected as well all necessary components that should be included in this prototype and we have integrated them at the prototype bodywork.