Fuzzy control method for washer and its controller

The present invention relates to a fuzzy control method for washer and its controller. Its method is as follows: the washer motor is used as the weight, cloth quality and dewatering sensor, photosensor is used as dirty sensor, and according to the measured blocked point voltage, motor current and its relative angle-offset, the weight of clothing and other articles to be washed, their flexibility, dewatering extent and dirty degree can be calculated by single-chip microcomputer so as to define the dosage of detergent, water intake velocity, water intake time and quantity, washing time and dewatering time to implement fuzzy full-automatic control. Its circuit system includes host circuit, control circuit, detection circuit, antijamming network, output circuit and D.C. power supply, etc..