Patent ID: 6868326
Filing Date: 2005-03-15
Classification: F02D,G05B

Abstract:
1. A control apparatus comprising: reference input-calculating means for calculating a reference input; limiting value-calculating means for calculating a limiting value for limiting the reference input; modulation output-calculating means for inputting the calculated limiting value to one of a ΔΣ modulation algorithm and a ΣΔ modulation algorithm, thereby calculating a modulation output as an output from the one of the modulation algorithms; and control input-calculating means for calculating a control input to the controlled object according to the calculated modulation output, wherein said limiting value-calculating means sets the limiting value to a value which is identical in sign to the reference input and equal in absolute value to the modulation output when the absolute value of the reference input is larger than the absolute value of the modulation output, and to a value which is equal to the reference input when the absolute value of the reference input is equal to or smaller than the absolute value of the modulation output.