| 摘要 |
PURPOSE:To supply combustion air at a stable rate by correcting the output value by means of the deviation comparison section, the proportional term computing section and the integration term computing section so as to reduce to zero the difference between the set rotational speed and the detected speed by the rotational speed detecting section. CONSTITUTION:The deviation comparison section 22 compares the proportional term computed deviation which computes the correction amount in proportion to the deviation between the set rotational speed by the rotational speed setting section and the detected speed by the rotational speed detecting means 20 with a predetermined integrable zone. The integration term computing section 23 comulates those deviations which are present in the predetermined integrable zone based on the comparison results by the deviation comparison section, and computes the correction amount in proportion to the cumulative value. The output value computing section 24 outputs a value which is the sum of the basic output value, the computation result by the proportional term computing section and the comutation result by the integration term computing section 23. By this constitution, the air can be stably supplied without causing overshoots or undershoots. |
