Mass flow controller automation method and related system

A controlling device automation system in an MFC, comprising:

• a computer;
• an interface;
• an automatic electronic pressure regulator, regulating an output of a gas pressure source, as controlled by said computer via said interface;
• an MFC valve-driving electric circuit, controlled by said computer via said interface, with an electric circuit board regulating a degree of opening of a valve gate;
• and
• a flow controlling device, controlled by said computer via said interface, performing data monitoring of actual gas flow, and constituted and assembled by a standard flow controlling device;
• wherein said computer, based on each item of monitoring data and using an identification technique, calculates MFC open loop system parameters, furthermore, using a model based on a dominant pole-placement method, calculates PI control parameters and, after having obtained sets of PI control parameters, carrying into effect a fuzzy theory model, calculates a refined fuzzy rule data table, being able to transfer data of said fuzzy rule data table to the MFC controlling device system.