Patent Document ID: 20020095225
Application ID: 09727653
Patent Flag: 0

Claim One:
1. A controlling device automation method in an MFC, comprising the steps of: a. automatically controlled determining of gas pressure; b. automatically controlled feeding of a voltage in stages into a valve gate to drive an electric circuit; c. automatically controlled algorithmic obtaining of MFC open loop system parameters by an identification technique; d. automatically controlled algorithmic determining of PI control parameters by a dominant pole-placement method; e. automatic decision control of automatic judging whether measurements of gas flow rates and pressure values to be done have been finished; and f. automatically controlled calculating of a fuzzy logic rule table; said steps forming an automatically controlled single closed loop; wherein by performing said steps multiple PI control parameter sets are obtainable fast and in an automatic way, and a calculation is done to form a refined fuzzy rule data table, so that a greatly enhanced MFC reaction function is attained.