Fuzzy control strategy for parallel hybrid electric vehicles based on Cruise/Simulink soft

The control strategy was studied based on a parallel hybrid electric vehicle (HEV). The vehicle model was built under the Cruise/Simulink soft. Based on the model, the fuzzy control strategies was proposed and studied, which used required torque of vehicle and state of charge (SOC) of the battery as inputs and the expected load of engine as fuzzy output. Further, the fuzzy control strategy was evaluated through compared with the traditional logic threshold control strategy. The test and simulation results show the fuzzy control strategy can optimize the engine of working condition and region better. And this strategy is closer to human thinking and has stronger robustness, can greatly optimize the vehicle fuel economy and meet hybrid electric vehicle control requirements.