Fuzzy control device with the ability of a rule and to change their operating method and a switch controlled by fuzzy inference control system and its control method

摘要

In a fuzzy control apparatus capable of changing the rule during its operation, a sample-and-hold circuit (13) stores the fuzzy inference output of a fuzzy control circuit (10) immediately before the rule change; and an output switching circuit (20) synthesizes a fuzzy control output from the fuzzy inference output stored immediately before the rule change and the fuzzy inference output after the rule change so that the ratio of the fuzzy inference output immediately before the rule change to the fuzzy control output may decrease with the lapse of time from the rule change, in other words, the ratio of the fuzzy inference output after the rule change to the fuzzy control output may increase, and outputs only the fuzzy inference output after the rule change as the fuzzy control output after a predetermined period of time from the rule change. In this manner, the drastic change of the output at the time of the rule change can be prevented and smooth switching can be made. IMAGE