P2.5 hybrid commercial vehicle based on the speed layered control

The control method of the working mode of P2.5 hybrid dual-motor heavy commercial vehicle is analyzed, and based on the vehicle power demand, battery SOC and real-time speed, the conditions for entering different working modes based on speed stratification are formulated. They are pure electric drive, driving charging, engine direct drive, series drive, parallel to oh, regenerative braking and parking mode. The control strategy ensures the effective switching between the modes, so that the P2.5 dual-motor hybrid system achieves the effect of efficient and fuel saving operation, and provides reference for the subsequent engineering developers.