Study on Control Algorithm and Parametric Design of Full Cell Hybrid Transit Bus

In this paper, the series configuration of fuel cell hybrid transit bus is introduced. The control strategy and control algorithm is presented, in which to achieve higher fuel economy fuel cell pack can be modified by battery SOC within high efficient area and battery SOC can be maintained at reasonable level. Method and assessment criteria of parametric design are presented, by which appropriate parameters of fuel cell, motor, transmission are determined. The simulation results show that, with developed control algorithm and parametric design comparable power performance and much higher fuel economy can be achieved than that of baseline bus. Based on these results the concept design of fuel cell hybrid transit bus had been accomplished and development of prototype is now conducing.