Modeling And Simulation Of Torque Distribution Control Strategy For A Series-Parallel Hybrid Electric Bus

Combined with the characteristics of vehicle operation, a torque distribution control strategy based on logic threshold method for a series-parallel hybrid electric bus is proposed to improve the vehicle's fuel economy. And the simulink model of this strategy is built. Then the simulation is completed under the selected cycle condition. Compared with the real vehicle test data, the control strategy can reduce the fuel consumption by 6.2% on the basis of guaranteeing the vehicle's dynamic performance, which achieves the design goals. And the charge balance of the super-capacitor is also well maintained. The validity and feasibility of the torque distribution control strategy has been verified.