Control method for washing machine and washing machine

A control method for a washing machine, the washing machine comprising:

• a water tank;
• and
• a circulating filter pipeline, a water inlet end and a water outlet end of the circulating filter pipeline are communicated to the water tank respectively, and a circulation pump and a filtering device are installed on the circulating filter pipeline,
• wherein the filtering device includes a filtering cavity with a water inlet and a filtered water outlet,
• wherein a filtering mechanism is rotatably installed inside the filtering cavity to filter water entering the filtering cavity,
• wherein the control method includes:
• delivering a laundry treatment agent into the water tank;
• turning on the circulation pump to circulate the water in the water tank through the filtering device;
• controlling the filtering mechanism to rotate in the filtering cavity at a first set speed to dissolve the laundry treatment agent in the water,
• wherein
• the filtering mechanism continues to rotate at the first set speed for a preset time, and then the filtering mechanism is controlled to stop rotating,
• after the filtering mechanism stops rotating, the circulation pump remains in an operating state and the washing machine performs a circulation filtering washing/rinsing, and
• after washing/rinsing is completed, the filtering mechanism is controlled to rotate in the filtering cavity at a second set speed to remove filtered impurities on a surface of the filtering mechanism,
• wherein the first set speed is greater than the second set speed, and
• wherein the washing machine determines the first set speed according to washing parameters in the currently operating washing program.