GB1370103A - Process control apparatus - Google Patents

Process control apparatus

Info

Publication number
GB1370103A
GB1370103A GB4802471A GB4802471A GB1370103A GB 1370103 A GB1370103 A GB 1370103A GB 4802471 A GB4802471 A GB 4802471A GB 4802471 A GB4802471 A GB 4802471A GB 1370103 A GB1370103 A GB 1370103A
Authority
GB
United Kingdom
Prior art keywords
counter
counters
comparator
triggered
output
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
Application number
GB4802471A
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.)
Lucas Electrical Co Ltd
Original Assignee
Lucas Electrical 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 Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Priority to GB4802471A priority Critical patent/GB1370103A/en
Priority to CA132,768A priority patent/CA964764A/en
Priority to AU38183/72A priority patent/AU467278B2/en
Priority to SE00896/72A priority patent/SE369235B/xx
Priority to FR7203088A priority patent/FR2157288A5/fr
Priority to IT48060/72A priority patent/IT957513B/en
Priority to JP1291772A priority patent/JPS5336107B2/ja
Priority to DE2205935A priority patent/DE2205935C3/en
Publication of GB1370103A publication Critical patent/GB1370103A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00Advancing or retarding ignition; Control therefor
    • F02P5/04Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15Digital data processing
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B15/00Systems controlled by a computer
    • G05B15/02Systems controlled by a computer electric
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Complex Calculations (AREA)

Abstract

1370103 Process control LUCAS ELECTRICAL CO Ltd 14 Jan 1972 [15 Oct 1971] 48024/71 Heading G4H Process control apparatus includes two transducers 21, 23 producing signals representing two parameters related to the process being controlled, a duration significant output control pulse being derived from the signals. As described each time a monostable 24 is triggered, gates 71, 72 are enabled for a predetermined time to feed frequency significant signals from transducers 22, 23 to counters 73 and 74 carrying over to counter 75 and 114. The counts in counters 75, 114 are decoded and used to enable one of the rows 11a-11p and one of the switches 15a-15b in a diode matrix arrangement 77 so that parallel coded signals representing the two parameters are fed to a comparator 53. At the start of the operation a bi-stable 46 is triggered which results in the output pulse being commenced and in a counter 52 being pulsed, after a delay determined by a counter 49, by pulses from a source 48 (which may be controlled in accordance with a third parameter). The counter output is fed as the outer input to the comparator 53, at equality of its inputs a counter 54 being incremented, counters 74, 75 and 72 reset and monostable 24 triggered. This process is repeated for a number of times determined by counter 54, the output from which, after, for example, 16 signals from the comparator, resets the bi-stable 46 to terminate the output pulse. Each pulse from comparator 53 also increments counters 86, 87 the counts in which consequently vary in a cyclic manner, the instantaneous count being entered into counters 73, 74 each time the monostable 24 is triggered. This is stated to compensate for small variations in the input. The delay introduced by the counter 49 ensures that a minimum output pulse length is always provided. Specifications 1,370,104 and 1,370,105 are referred to.
GB4802471A 1971-10-15 1971-10-15 Process control apparatus Expired GB1370103A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB4802471A GB1370103A (en) 1971-10-15 1971-10-15 Process control apparatus
CA132,768A CA964764A (en) 1971-10-15 1972-01-19 Process control apparatus
AU38183/72A AU467278B2 (en) 1971-10-15 1972-01-21 Process control apparatus
SE00896/72A SE369235B (en) 1971-10-15 1972-01-26
FR7203088A FR2157288A5 (en) 1971-10-15 1972-01-31
IT48060/72A IT957513B (en) 1971-10-15 1972-02-01 PROCESS CONTROL EQUIPMENT
JP1291772A JPS5336107B2 (en) 1971-10-15 1972-02-07
DE2205935A DE2205935C3 (en) 1971-10-15 1972-02-09 Process control device for one operating parameter as a function of several other operating parameters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4802471A GB1370103A (en) 1971-10-15 1971-10-15 Process control apparatus

Publications (1)

Publication Number Publication Date
GB1370103A true GB1370103A (en) 1974-10-09

Family

ID=10447090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4802471A Expired GB1370103A (en) 1971-10-15 1971-10-15 Process control apparatus

Country Status (8)

Country Link
JP (1) JPS5336107B2 (en)
AU (1) AU467278B2 (en)
CA (1) CA964764A (en)
DE (1) DE2205935C3 (en)
FR (1) FR2157288A5 (en)
GB (1) GB1370103A (en)
IT (1) IT957513B (en)
SE (1) SE369235B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1516302A (en) * 1974-06-18 1978-07-05 Lucas Electrical Ltd Process control apparatus
DE102018211882A1 (en) * 2018-07-17 2020-01-23 Ziehl-Abegg Se Method for acquiring operating parameter data of a motor system with an electric motor and corresponding motor system

Also Published As

Publication number Publication date
AU467278B2 (en) 1975-11-27
JPS4848880A (en) 1973-07-10
IT957513B (en) 1973-10-20
JPS5336107B2 (en) 1978-09-30
AU3818372A (en) 1973-07-26
DE2205935B2 (en) 1977-07-14
DE2205935C3 (en) 1978-03-02
FR2157288A5 (en) 1973-06-01
SE369235B (en) 1974-08-12
DE2205935A1 (en) 1973-08-09
CA964764A (en) 1975-03-18

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Legal Events

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