Research on the Dual-Motor Coupling Power System Strategy of Electric Sweeping Vehicle 2022-01-0673

The sweeping vehicle has made a great contribution to the cleaning of urban roads. The traditional electric sweeping vehicle uses the main and auxiliary motors to drive the driving system and the operating system respectively. However, because the sweeper is in a low-speed working condition for a long time, and the drive motor must meet the demand for high power, there exist problems of low motor utilization and high cost. Aiming at this phenomenon, a dual-motor power coupling system based on planetary gears is proposed. First, analyze the driving mode of the dual-motor coupling power system according to the actual working scheme of the sweeper, and match the parameters of the motor based on this. Second, on the premise of meeting the power requirements, analyze and divide the working range of each drive mode based on the principle of minimum energy consumption, and then obtain the best drive mode switching control and speed and torque distribution strategy. Finally, the effectiveness of the system and strategy is verified by simulation. The simulation results show that the control strategy proposed in this paper effectively reduces the energy consumption of the electric sweeper and increases the driving range, which provides an important reference for the current design and development of operational commercial vehicles.