Self-calibration method for working time of bean grinding motor and coffee machine

The invention relates to the technical field of coffee machine control, in particular to a bean grinding motor working time self-calibration method and a coffee machine.The bean grinding motor working time self-calibration method comprises the steps that the actual motor rotation number R1 within default working time of a bean grinding motor of a coffee machine is obtained and compared with the preset reference motor rotation number R2; calculating a first working time adjustment amount delta T1, so that the first working time adjustment amount delta T1 is increased along with the increase of the excess of the actual rotation number R1 of the motor relative to the rotation number R2 of the reference motor; and then the first motor working time T1 is obtained through the first working time adjustment amount delta T1 and the original motor working time T0, so that T1 is equal to T0 + delta T1. Compared with the prior art, the actual rotation number R1 of the bean grinding motor changing along with the abrasion