GB1419245A - Process control apparatus - Google Patents

Process control apparatus

Info

Publication number
GB1419245A
GB1419245A GB5950571A GB5950571A GB1419245A GB 1419245 A GB1419245 A GB 1419245A GB 5950571 A GB5950571 A GB 5950571A GB 5950571 A GB5950571 A GB 5950571A GB 1419245 A GB1419245 A GB 1419245A
Authority
GB
United Kingdom
Prior art keywords
control apparatus
process control
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
Application number
GB5950571A
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 GB5950571A priority Critical patent/GB1419245A/en
Priority to DE19722261835 priority patent/DE2261835A1/en
Priority to CS8676A priority patent/CS171742B2/cs
Priority to IT54818/72A priority patent/IT988082B/en
Priority to FR7245405A priority patent/FR2164731B1/fr
Priority to JP47127766A priority patent/JPS4868977A/ja
Publication of GB1419245A publication Critical patent/GB1419245A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/661—Improving the reconstruction of the analogue output signal beyond the resolution of the digital input signal, e.g. by interpolation, by curve-fitting, by smoothing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electronic Switches (AREA)
  • Feedback Control In General (AREA)
GB5950571A 1971-12-21 1971-12-21 Process control apparatus Expired GB1419245A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB5950571A GB1419245A (en) 1971-12-21 1971-12-21 Process control apparatus
DE19722261835 DE2261835A1 (en) 1971-12-21 1972-12-18 PROCESS CONTROL
CS8676A CS171742B2 (en) 1971-12-21 1972-12-18
IT54818/72A IT988082B (en) 1971-12-21 1972-12-19 ELECTRONIC CONTROL EQUIPMENT FOR INDUSTRIAL PROCESSES
FR7245405A FR2164731B1 (en) 1971-12-21 1972-12-20
JP47127766A JPS4868977A (en) 1971-12-21 1972-12-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5950571A GB1419245A (en) 1971-12-21 1971-12-21 Process control apparatus

Publications (1)

Publication Number Publication Date
GB1419245A true GB1419245A (en) 1975-12-24

Family

ID=10483880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5950571A Expired GB1419245A (en) 1971-12-21 1971-12-21 Process control apparatus

Country Status (6)

Country Link
JP (1) JPS4868977A (en)
CS (1) CS171742B2 (en)
DE (1) DE2261835A1 (en)
FR (1) FR2164731B1 (en)
GB (1) GB1419245A (en)
IT (1) IT988082B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090929A (en) * 1959-12-18 1963-05-21 Westinghouse Electric Corp Controller circuitry with pulse width modulator

Also Published As

Publication number Publication date
FR2164731A1 (en) 1973-08-03
CS171742B2 (en) 1976-10-29
JPS4868977A (en) 1973-09-19
IT988082B (en) 1975-04-10
DE2261835A1 (en) 1973-06-28
FR2164731B1 (en) 1978-06-02

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Legal Events

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

Effective date: 19921207