Research on Engine Starting Control Strategy of Hybrid Electric Vehicle
In order to improve the driving performance and dynamic response speed of hybrid electric vehicle,the engine starting control strategy of hybrid electric vehicle was studied.The P2 configuration hybrid power system structure is constructed as the power system of the hybrid electric vehicle.Using this power system structure,the changes of different vehicle parameters in the pure electric operation mode,the single engine drive operation mode and the combined drive operation mode of the hybrid electric vehicle are analyzed,and the engine starting control strategy is constructed according to the changes of different parameters.By PID fuzzy control of clutch oil pressure and power source torque coordination control,the engine starting control of hybrid electric ve-hicle is realized.The simulation results show that under this control strategy,a small impact degree can be gen-erated during engine starting and the engine starting stability can be guaranteed.And can quickly realize the speed change between the engine and the motor when starting,so it has good control performance.
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