GB2237904B - Digital control system - Google Patents

Digital control system

Info

Publication number
GB2237904B
GB2237904B GB8501416A GB8501416A GB2237904B GB 2237904 B GB2237904 B GB 2237904B GB 8501416 A GB8501416 A GB 8501416A GB 8501416 A GB8501416 A GB 8501416A GB 2237904 B GB2237904 B GB 2237904B
Authority
GB
United Kingdom
Prior art keywords
control system
digital control
digital
control
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.)
Expired - Lifetime
Application number
GB8501416A
Other versions
GB2237904A (en
Inventor
Brian Frederick Farman
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of GB2237904A publication Critical patent/GB2237904A/en
Application granted granted Critical
Publication of GB2237904B publication Critical patent/GB2237904B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/26—Control of fuel supply
    • F02C9/28—Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/1633—Error detection by comparing the output of redundant processing systems using mutual exchange of the output between the redundant processing components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2023—Failover techniques
    • G06F11/2033—Failover techniques switching over of hardware resources
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2038—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant with a single idle spare processing component
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2043—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant where the redundant components share a common memory address space
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2097—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements maintaining the standby controller/processing unit updated
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
    • G06F11/1687—Temporal synchronisation or re-synchronisation of redundant processing components at event level, e.g. by interrupt or result of polling
GB8501416A 1984-02-28 1985-01-19 Digital control system Expired - Lifetime GB2237904B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8405159 1984-02-28

Publications (2)

Publication Number Publication Date
GB2237904A GB2237904A (en) 1991-05-15
GB2237904B true GB2237904B (en) 1991-10-02

Family

ID=10557275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8501416A Expired - Lifetime GB2237904B (en) 1984-02-28 1985-01-19 Digital control system

Country Status (4)

Country Link
DE (1) DE3533849A1 (en)
FR (1) FR2664720B1 (en)
GB (1) GB2237904B (en)
IT (1) IT1232660B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9125975D0 (en) * 1991-12-06 1992-02-05 Lucas Ind Plc Multi-lane controller
US5583757A (en) * 1992-08-04 1996-12-10 The Dow Chemical Company Method of input signal resolution for actively redundant process control computers
DE19529434B4 (en) 1995-08-10 2009-09-17 Continental Teves Ag & Co. Ohg Microprocessor system for safety-critical regulations
FR2748829B1 (en) * 1996-05-17 1998-08-07 Hautbois Rene Pierre SECURE FAULT TOLERANT CONTROL DEVICE
DE19716197A1 (en) * 1997-04-18 1998-10-22 Itt Mfg Enterprises Inc Microprocessor system for safety-critical regulations
DE19720618A1 (en) 1997-05-16 1998-11-19 Itt Mfg Enterprises Inc Microprocessor system for automotive control systems
DE19834863A1 (en) * 1998-08-01 2000-02-03 Heidenhain Gmbh Dr Johannes Method for secure data transmission between a numerical control and a spatially separated device
CA2900661A1 (en) 2013-03-13 2014-09-18 Rolls-Royce North American Technologies, Inc. Gas turbine engine and electrical system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364625A (en) * 1970-07-09 1974-08-21 Secr Defence Digital data processing system
GB2032149A (en) * 1978-09-08 1980-04-30 Fujitsu Ltd Transferring from Working to Standby Processor on Fault
GB2057732A (en) * 1979-09-06 1981-04-01 Rolls Royce Data processing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1087261B (en) * 1977-10-20 1985-06-04 Euteco Spa TWO-CALCULATOR SYSTEM WITH AUTOMATIC SWITCHING IN THE PRESENCE OF HISTORICAL DATA, FOR THE AUTOMATION OF INDUSTRIAL PLANTS
US4270168A (en) * 1978-08-31 1981-05-26 United Technologies Corporation Selective disablement in fail-operational, fail-safe multi-computer control system
JPS573101A (en) * 1980-06-09 1982-01-08 Hitachi Ltd Multiple control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364625A (en) * 1970-07-09 1974-08-21 Secr Defence Digital data processing system
GB2032149A (en) * 1978-09-08 1980-04-30 Fujitsu Ltd Transferring from Working to Standby Processor on Fault
GB2057732A (en) * 1979-09-06 1981-04-01 Rolls Royce Data processing system

Also Published As

Publication number Publication date
GB2237904A (en) 1991-05-15
DE3533849A1 (en) 1995-10-12
IT1232660B (en) 1992-03-02
FR2664720A1 (en) 1992-01-17
IT8548633A0 (en) 1985-10-04
FR2664720B1 (en) 1994-05-20

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20050118