Torque Distribution Control Strategy of Hybrid Electric Vehicle Powertrain

The torque distribution of powertrain for a power-split hybrid electric vehicle is important to improve vehicle fuel economy and reduce exhaust emissions. A torque distribution control strategy based on the logic threshold strategy for a power-split hybrid electric vehicle was established in SIMULINK. Using the CRUISE, a model of the power-split hybrid electric vehicle was build and the vehicle dynamic performance, economic performance and emission characteristics were analyzed. The results were shown that the control strategy of torque distribution can effectively control the vehicle output torque and quickly respond to vehicle working conditions.