# US 2022/0067015 A1 · Information processing method, non-transitory computer readable medium having recorded thereon program, and information processing device

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- Number: US 2022/0067015 A1
- Document ID: US20220067015A1
- Status: Published application
- Kind: A1
- Application number: 17/396,647
- Filed: 2021-08-06
- Published: 2022-03-03
- Earliest claimed: 2020-08-27
- Assignees: Panasonic Intellectual Property Management Co., Ltd.
- Applicants: Panasonic Intellectual Property Management Co., Ltd.
- Inventors: NOBUO HARA; MIKIO USHIODA; AKIHISA NAKAHASHI
- Web page: https://patentgrep.com/patent/US20220067015A1

## CPC

- G06F 16/2282: {Tablespace storage structures; Management thereof}
- G01M 15/04: Testing internal-combustion engines
- G05B 19/0426: {Programming the control sequence}
- F02D 41/2432: {Methods of calibration}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W)

## Abstract

An information processing method includes: creating a first table; calculating a first response surface using the first table in which an object variable is recorded, the object variable acquired when experimental conditions of a first control factor is fixed to a first level value; adding the experimental conditions of the first control factor in which the first level value is set to the first table when the first response surface does not include a target value related to the object variable; creating a second table by adding a plurality of combinations of the experimental conditions for each of the plurality of control factors in which a first plurality of level values are set and the first control factor in which a second plurality of level values are set to the first table; calculating a second response surface including the target value using the second table; and outputting the second response surface.

## Claims

### Claim 1

An information processing method comprising:
creating, by an experimental design method, a first table showing a plurality of combinations of experimental conditions for each of a plurality of control factors for obtaining an object variable by an experiment, the creating being performed based on a first plurality of level values set for each of the plurality of control factors;
recording, in the first table, the object variable acquired based on the first table and acquired when an experimental condition of a first control factor that is not included in the plurality of control factors is fixed to one level value of a first level value and a second level value larger than the first level value;
calculating a first response surface related to the object variable for the plurality of control factors using the first table in which the object variable is recorded;
adding experimental conditions of the first control factor in which the one level value of the first level value and the second level value is set to the plurality of combinations of the experimental conditions to the first table in which the object variable is recorded, when the calculated first response surface does not include a target value related to the object variable;
setting the first plurality of level values for each of the plurality of control factors, and setting, for the first control factor, the second plurality of level values which include the other level value different from the one level value of the first level value and the second level value and a third level value different from the first level value and the second level value;
creating, by the experimental design method, a second table showing a plurality of combinations of the experimental conditions for each of the plurality of control factors and the first control factor by adding a plurality of combinations of the experimental conditions for each of the plurality of control factors and the first control factor to the first table to which the experimental conditions of the first control factor is added, based on the first plurality of level values set for each of the plurality of control factors and the second plurality of level values set for the first control factor;
recording, in the second table, an object variable acquired based on the second table;
calculating a second response surface related to the object variable and including the target value for the plurality of control factors and the first control factor using the second table in which the object variable is recorded; and
outputting the calculated second response surface.

### Claim 2 (depends on 1)

The information processing method of claim 1,
wherein a third table showing a plurality of combinations of experimental conditions for each of the plurality of control factors and the first control factor is created based on the first plurality of level values set for each of the plurality of control factors and the first control factor, and
adding a plurality of combinations of the experimental conditions when the second table is created is performed until a value of an average prediction variance calculated for the second table is smaller than a value of an average prediction variance calculated for the third table.

### Claim 3 (depends on 1)

The information processing method of claim 1,
wherein setting of the third level value to the first control factor in the second table is performed by any of
a first pattern in which the third level value is set to be smaller than the first level value,
a second pattern in which the third level value is set to be larger than the first level value and smaller than the second level value, and
a third pattern in which the third level value is set to be larger than the second level value,
the creating of the second table is performed on a first selection pattern selected from the first pattern, the second pattern, and the third pattern,
the creating of the second table is performed on any second selection pattern other than the first selection pattern selected from the first pattern, the second pattern, and the third pattern, when the second response surface including the target value is not calculated by the created second table in the first selection pattern, and
the creating of the second table is performed on a third selection pattern other than the first selection pattern selected from the first pattern, the second pattern, and the third pattern and the second selection pattern, when the second response surface including the target value is not calculated by the created second table in the second selection pattern.

### Claim 4 (depends on 1)

The information processing method of claim 1,
wherein the first table is created based on a central composite design method.

### Claim 5 (depends on 1)

A non-transitory computer readable medium having recorded thereon a program for causing a computer to execute the information processing method of claim 1.

### Claim 6

An information processing device comprising:
a processor; and
a memory,
wherein by executing a program stored in the memory, the processor
creates, by an experimental design method, a first table showing a plurality of combinations of experimental conditions for each of a plurality of control factors for obtaining an object variable by an experiment, the creating being performed based on a first plurality of level values which are set for each of the plurality of control factors,
records, in the first table, the object variable acquired based on the first table and acquired when an experimental condition of a first control factor that is not included in the plurality of control factors is fixed to one level value of a first level value and a second level value larger than the first level value,
calculates a first response surface related to the object variable for the plurality of control factors using the first table in which the object variable is recorded,
adds experimental conditions of the first control factor in which the one level value of the first level value and the second level value is set to the plurality of combinations of the experimental conditions to the first table in which the object variable is recorded, when the calculated first response surface does not include a target value related to the object variable,
sets the second plurality of level values which include the other level value different from the one level value of the first level value and the second level value for the first control factor and a third level value different from the first level value and the second level value,
creates, by the experimental design method, a second table showing a plurality of combinations of the experimental conditions for each of the plurality of control factors and the first control factor by adding a plurality of combinations of the experimental conditions for each of the plurality of control factors and the first control factor to the first table to which the experimental condition of the first control factor is added, based on the first plurality of level values set for each of the plurality of control factors and the second plurality of level values set for the first control factor,
records, in the second table, an object variable acquired based on the second table,
calculates a second response surface related to the object variable and including the target value for the plurality of control factors and the first control factor using the second table in which the object variable is recorded, and
outputs the calculated second response surface.