Invention Grant
- Patent Title: Parameter update method, parameter update apparatus, and non-transitory recording medium storing program for parameter update
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Application No.: US16581860Application Date: 2019-09-25
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Publication No.: US10885144B2Publication Date: 2021-01-05
- Inventor: Eisuke Takahashi
- Applicant: BROTHER KOGYO KABUSHIKI KAISHA
- Applicant Address: JP Nagoya
- Assignee: BROTHER KOGYO KABUSHIKI KAISHA
- Current Assignee: BROTHER KOGYO KABUSHIKI KAISHA
- Current Assignee Address: JP Nagoya
- Agency: Scully, Scott, Murphy & Presser, PC
- Priority: JP2015-194530 20150930
- Main IPC: G06F17/11
- IPC: G06F17/11 ; G05B13/02

Abstract:
There is provided a method of updating a setting value of a variable parameter, the method including: obtaining a time-series data of control input and a time-series data of control output observed in control with a controller; calculating a value of the variable parameter which minimizes an output value of an evaluation function based on the obtained time-series data of the control input and the control output; and updating the setting value of the variable parameter to the calculated value of the variable parameter. The evaluation function includes a first function part in which a first norm or a second norm changes depending on the value of the variable parameter, and a second function part of which specific frequency band has an amount, by which the output value of the evaluation function is increased, larger than that of any other frequency band.
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