Control apparatus using time proportioning control
First Claim
1. A control apparatus using time proportioning control, comprising:
- a manipulation value detecting section that finds deviation between a control target value with respect to a controlled object and a value indicative of a state of said controlled object as a manipulation value of a device for controlling said controlled object;
a time proportioning output section that is activated in synchronization with a prescribed period, generates a time proportioning signal corresponding to the manipulation value found by said manipulation value detecting section, and provides the signal to said device; and
an output control section that, when said control target value is changed within said period, resets activation timing of said time proportioning output section with the changing timing or reactivates said time proportioning output section according to an increasing amount of said manipulation value.
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Abstract
A control apparatus used in a control system in which the cycle time of a time proportioning signal is long, for example, a temperature control system using a cooler. Even if a manipulation value MV with respect to the cooler is drastically changed along with change of a control target value SP, the activation timing of a time proportioning output section is reset with the changing timing, so that a time proportioning signal Ton is newly generated. Alternatively, with the changing timing, the time proportioning output section is reactivated to generate the deficiency of the time proportioning signal Ton according to an increasing amount of the manipulation value MV. As a result, the time proportioning signal Ton is changed with an excellent follow-up ability.
25 Citations
9 Claims
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1. A control apparatus using time proportioning control, comprising:
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a manipulation value detecting section that finds deviation between a control target value with respect to a controlled object and a value indicative of a state of said controlled object as a manipulation value of a device for controlling said controlled object;
a time proportioning output section that is activated in synchronization with a prescribed period, generates a time proportioning signal corresponding to the manipulation value found by said manipulation value detecting section, and provides the signal to said device; and
an output control section that, when said control target value is changed within said period, resets activation timing of said time proportioning output section with the changing timing or reactivates said time proportioning output section according to an increasing amount of said manipulation value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification