JPS57178501A - Backup controller - Google Patents

Backup controller

Info

Publication number
JPS57178501A
JPS57178501A JP6608181A JP6608181A JPS57178501A JP S57178501 A JPS57178501 A JP S57178501A JP 6608181 A JP6608181 A JP 6608181A JP 6608181 A JP6608181 A JP 6608181A JP S57178501 A JPS57178501 A JP S57178501A
Authority
JP
Japan
Prior art keywords
tracking
control system
signal
fault
tracking signal
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.)
Pending
Application number
JP6608181A
Other languages
Japanese (ja)
Inventor
Akinori Baba
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6608181A priority Critical patent/JPS57178501A/en
Publication of JPS57178501A publication Critical patent/JPS57178501A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B7/00—Arrangements for obtaining smooth engagement or disengagement of automatic control
    • G05B7/02—Arrangements for obtaining smooth engagement or disengagement of automatic control electric

Abstract

PURPOSE:To switch control systems smoothly in safety while preventing tracking based upon a fault signal during a fault period, by reducing the variation of a tracking signal by providing a tracking correcting circuit to a tracking signal path. CONSTITUTION:A backup control system 2 is provided for a main control system 1, and if the control system 1 becomes abnormal, switching operation is performed by a switching part 6 to put the control system 2 in tracking control operation by a tracking signal supplied from the control system 1 to the control system 2. Then, tracking correcting circuits 11 and 12 are provided to tracking signal paths 3 and 4 between the control systems 1 and 2. The variation of a tracking signal TR1 or TR2 sent out of the control system 1 or 2 is reduced by the circuit 11 or 12 and a tracking signal TR11 or TR12 is supplied to the control system 2 or 1 to prevent tracking based upon a fault signal during a fault period, switching the control systems 1 and 2 smoothly in safety.
JP6608181A 1981-04-29 1981-04-29 Backup controller Pending JPS57178501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6608181A JPS57178501A (en) 1981-04-29 1981-04-29 Backup controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6608181A JPS57178501A (en) 1981-04-29 1981-04-29 Backup controller

Publications (1)

Publication Number Publication Date
JPS57178501A true JPS57178501A (en) 1982-11-02

Family

ID=13305540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6608181A Pending JPS57178501A (en) 1981-04-29 1981-04-29 Backup controller

Country Status (1)

Country Link
JP (1) JPS57178501A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5299420A (en) * 1992-01-15 1994-04-05 Caterpillar Inc. Redundant control system for a work vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5299420A (en) * 1992-01-15 1994-04-05 Caterpillar Inc. Redundant control system for a work vehicle

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