Time-division 4-wheel drive (4WD) parallel hybrid driving system

The invention provides a time-division 4-wheel drive (4WD) parallel hybrid driving system belonging to the technical field of automobiles. The invention solves the problem that the conventional fuel-electric 4WD hybrid automobile power system has low energy utilization rate. The time-division 4WD parallel hybrid driving system comprises an engine, a storage battery and first and second motors capable of performing conversion between electric energy and mechanical energy; the engine is connected with a first axle; an engine controller is connected to the engine; the engine can drive the first axle to work during work; the second motor is connected with a second axle; a second motor controller is connected to the second motor; the first motor is connected between the engine and the first motor controller; the first motor can charge the storage battery under the driving of the engine when the engine is in a working state; and the second motor can charge the storage battery when in a working state that mechanical energy is converted to electric energy. The invention has the advantages of strong power, high energy utilization rate, energy saving and environment protection.