Brief description of the control of a process by means of a controller of process has three states, and four embodiments, said controller and its application to the test of carburetors

摘要

The invention relates to a method of controlling a process by means of a controller of the process to three states and four modes, as well as the control unit and its application to the test of carburetors. & br / the process and apparatus according to the invention operate using the difference between a signal of the reaction, coming from a device 42 and indicating the current state of the process, and a signal of the desired value, from a device 160 and indicating the condition desired for the process and by using simultaneously, the rate of variation between these two signals which are transmitted to the controller 125 of the process to three states and four modes. & br / field of application: test of carburetors for subsonic flow in order to determine the flow rates of flow of air and fuel in the carburetor. & br / (see appended drawing in bopi) & br / & & br /