PLANT CONTROL DEVICE AND CONTROL METHOD USING MODULATION ALGORITHM

Title:

PLANT CONTROL DEVICE AND CONTROL METHOD USING MODULATION ALGORITHM

Document Type and Number:

WIPO Patent Application WO/2005/091088

Kind Code:

A1

Abstract:

There is provided a control method for sufficiently compensating the non-linear characteristic for a plant having a strong non-linear characteristic and satisfying the follow-up and stability for a plant having a large control amount fluctuation. There is provided a plant control device using modulation algorithm. The control device includes: means for calculating a temporary control input for controlling the plant output to a target value; means for dividing the temporary control input into a plurality of components; means for modulating at least one of the components; and means for adding the modulated component to another component so as to generate a control input. Thus, it is possible to minimize the input fluctuation caused by modulation while maintaining the compensation ability of the non-linear characteristic such as plant friction and hysteresis attributed to the conventional modulation algorithm. Accordingly, even in a plant in which the temporary control input is greatly changed, it is possible to prevent oscillation of the output, thereby improving the controllability.

Inventors:

YASUI YUJI (JP)
SHIMOJO KANAKO (JP)

Application Number:

PCT/JP2005/004792

Publication Date:

September 29, 2005

Filing Date:

March 17, 2005

Export Citation:

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Assignee:

HONDA MOTOR CO LTD (JP)
YASUI YUJI (JP)
SHIMOJO KANAKO (JP)

International Classes:

F02D41/14; G05B13/02; F02D45/00; G05B21/02; (IPC1-7): G05B13/02; F02D45/00

Foreign References:

JP2003241803A	2003-08-29
JP2003195908A	2003-07-11
JP2001332973A	2001-11-30
JPH07212234A	1995-08-11

Other References: