JPS6426201A - Pid controller - Google Patents

Pid controller

Info

Publication number
JPS6426201A
JPS6426201A JP18426387A JP18426387A JPS6426201A JP S6426201 A JPS6426201 A JP S6426201A JP 18426387 A JP18426387 A JP 18426387A JP 18426387 A JP18426387 A JP 18426387A JP S6426201 A JPS6426201 A JP S6426201A
Authority
JP
Japan
Prior art keywords
directional
positive
negative
value
controlled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP18426387A
Other languages
Japanese (ja)
Other versions
JP2588202B2 (en
Inventor
Tetsuya Yoda
Akihiko Kuroda
Hisao Shintani
Mitsuhiko Araki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP62184263A priority Critical patent/JP2588202B2/en
Publication of JPS6426201A publication Critical patent/JPS6426201A/en
Application granted granted Critical
Publication of JP2588202B2 publication Critical patent/JP2588202B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Feedback Control In General (AREA)

Abstract

PURPOSE:To facilitate optimum control by judging whether or not a controlled variable calculated by a PID control arithmetic part is outputted to a system to be controlled according to its value. CONSTITUTION:The PID controller 1 computes and outputs a positive-directional output rate yn+ and a negative-directional output rate yn- for the controlled system 3 according to a specific arithmetic expression so as to eliminate the deviation en between measurement data (measured value xn) corresponding to the operation state of the controlled system 3 measured by a detector 2 and a preset set value x0. Therefore, even if the measured value xn varies nearby the set value x0, output switching between the positive and negative directions is not performed unnecessarily. Further, the optimum values of positive-directional and negative-directional PID parameters are set automatically. Consequently, the optimum control is performed at all times.
JP62184263A 1987-07-22 1987-07-22 PID control device Expired - Lifetime JP2588202B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62184263A JP2588202B2 (en) 1987-07-22 1987-07-22 PID control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62184263A JP2588202B2 (en) 1987-07-22 1987-07-22 PID control device

Publications (2)

Publication Number Publication Date
JPS6426201A true JPS6426201A (en) 1989-01-27
JP2588202B2 JP2588202B2 (en) 1997-03-05

Family

ID=16150257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62184263A Expired - Lifetime JP2588202B2 (en) 1987-07-22 1987-07-22 PID control device

Country Status (1)

Country Link
JP (1) JP2588202B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010253365A (en) * 2009-04-23 2010-11-11 Sumitomo Heavy Industries Environment Co Ltd Control device
CN114326374A (en) * 2021-12-14 2022-04-12 上海傲意信息科技有限公司 Asymmetric PID control method and system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868107A (en) * 1981-10-17 1983-04-22 Rika Kogyo Kk Method for deciding pid constant
JPS6083103A (en) * 1983-10-13 1985-05-11 Chino Works Ltd Controller
JPS62111311A (en) * 1985-11-11 1987-05-22 Yamatake Honeywell Co Ltd Heat/cool control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868107A (en) * 1981-10-17 1983-04-22 Rika Kogyo Kk Method for deciding pid constant
JPS6083103A (en) * 1983-10-13 1985-05-11 Chino Works Ltd Controller
JPS62111311A (en) * 1985-11-11 1987-05-22 Yamatake Honeywell Co Ltd Heat/cool control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010253365A (en) * 2009-04-23 2010-11-11 Sumitomo Heavy Industries Environment Co Ltd Control device
CN114326374A (en) * 2021-12-14 2022-04-12 上海傲意信息科技有限公司 Asymmetric PID control method and system

Also Published As

Publication number Publication date
JP2588202B2 (en) 1997-03-05

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