Title:
LEARNING CONTROLLER FOR SYSTEM HAVING WASTEFUL TIME OUTPUT DETECTION
Document Type and Number:
Japanese Patent JP3196907
Kind Code:
B2
Abstract:
PURPOSE: To realize a highly precise tracking operation even when only past output by several samplings can be obtained by deciding the correction amount of present time in such a way that an evaluation function on a deviation prediction value till future by M-steps becomes a minimum.
CONSTITUTION: A block 2 stores a target command to past time by d-sampling at the time (i) of a k-th trial. A subtracter 8 obtains a tracking command by a difference between the target command and the output of a controlled system. A computing element 7 decides the correction amount at present time so that the prescribed function on the deviation prediction value till future by M-steps becomes a minimum by a deviation, the deviation at previous trial time, the correction amount till present time and information on the dynamic characteristic of the controlled system. An adder 9 adds the correction amount at present time to the previous correction command and obtains the present correction command so as to output it to the controlled variable. Thus, the highly precise tracking operation can be realized even when only past output by several samplings can be obtained.
Inventors:
Yuji Nakamura
Application Number:
JP28943192A
Publication Date:
August 06, 2001
Filing Date:
October 01, 1992
Export Citation:
Assignee:
Yaskawa Electric Co., Ltd.
International Classes:
G05B13/02; G05B13/04; G05B21/02; (IPC1-7): G05B13/02; G05B13/04; G05B21/02
Domestic Patent References:
| JP1237701A | ||||
| JP6472201A | ||||
| JP4358202A |