| 摘要 |
PURPOSE:To realize the control for the characteritic quantity of a controlled system to an optimum value that is within a rated value, by giving the weighting to each rated value belonging to at least >=2 rated windows. CONSTITUTION:Both the internal pressure P ad the angle theta of advance of a controlled system product 1 suc as a ditribution type fuel jet pump (VE-type pump) for internal combustion engine are measured by measuring instruments 3 and 4 to be supplied to a computer 7 after a digital conversion. On the other hand, the weighting is given to the rated values belonging to rated windows W1 and W2 (plan forms showing the existing range of the rated value of the control subject). Then the comuter 7 received two characteristic quantities calculates weights M1 and M2 for the windows W1 and W2 corresponding to each measured value. To obtain the maximum product of these weights, a control member 101 is adjusted via an adjuster 2. In such way, the characteristic quantity of a controlled system can be controlled to an optimum value within a rated range. |
