ABSTRACT
A sport-utility vehicle is demonstrated in Advanced Vehicle Simulator (ADVISOR) with a power device fuel cell (FC)/ultracapacitor hybrid electric drivetrain utilizing approved part models. The net power developed from the FC stack and ultracapacitor, electric traction drive, vehicle mass is fixed. High power density quality of ultracapacitor is a major preferred standpoint for FC hybrid power train, and that can improve the mileage and acceleration of the vehicle. The simulations are carried out in two different drive cycles: city driving cycle (urban dynamometer driving schedule; UDDS) and highway driving cycle (highway fuel economy test). From the simulation results, it is observed that the fuel economy and regeneration efficiency increase for an urban driving cycle (UDDS). Simulation results with respect to fuel economy show that the degree of hybridization is beneficial and it varies for different drive cycles. The simulation plots demonstrate that ultracapacitor basically helps the energy component stack to take care of 434the vehicle power requirement and to accomplish a superior execution and a higher mileage.
