Power-driven system for large-scale oil-electricity hybrid power road sweeper and control strategy thereof

The invention discloses a power-driven system for a large-scale oil-electricity hybrid power road sweeper and a control strategy of the power-driven system for the large-scale oil-electricity hybrid power road sweeper. The power-driven system for the large-scale oil-electricity hybrid power road sweeper comprises: power of an engine is delivered by a transmission, the power is switched between an operation system and a running system through a power switching device, one end of a battery pack is connected with a 220V charger, the other end of the battery pack is connected with an electrical machine, the coupling is carried out on the electrical machine and the power, switched to the running system through the power switching device, of the engine through a torsion coupler, and the power is output to a driving wheel. By using the power system to drive the system, the power system only needs one engine, and the power of the engine equivalent to the power of an assistant engine of an original vehicle. Under the mode of the cleaning and the transition, the engine is capable of operating at a higher load rate. The fuel economy and the discharge are clearly improved.