GB1446556A - Control of the composition of the exhaust gas of internal combustion engines - Google Patents

Control of the composition of the exhaust gas of internal combustion engines

Info

Publication number
GB1446556A
GB1446556A GB4861473A GB4861473A GB1446556A GB 1446556 A GB1446556 A GB 1446556A GB 4861473 A GB4861473 A GB 4861473A GB 4861473 A GB4861473 A GB 4861473A GB 1446556 A GB1446556 A GB 1446556A
Authority
GB
United Kingdom
Prior art keywords
output
integrator
internal combustion
exhaust gas
oct
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
GB4861473A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Priority claimed from DE2251167A external-priority patent/DE2251167C3/en
Priority claimed from DE2321721A external-priority patent/DE2321721C2/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1446556A publication Critical patent/GB1446556A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1482—Integrator, i.e. variable slope

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

1446556 Automatic control of exhaust gases ROBERT BOSCH GmbH 18 Oct 1973 [19 Oct 1972 28 April 1973] 48614/73 Heading G3R In a system having an integrater for controlling the fuel/air ratio supplied to an internal combustion engine in response to an exhaust gas probe, the integrator operates in steps, the duration of which depends upon the speed and/or the load on the engine. In the embodiment, one or the other of two transistors 24, 25 periodically conducts according to whether or not the output of probe 12 exceeds a threshold set at 20 so as to cause a steady rise or fall of the output of integrator 32, 33, 34 for a time determined by a monostable multi-vibrator 36 and at a frequency determined by engine speed or load pulses which trigger 36. During this off period the output of the integrator remains constant, or changes at a different rate if a resistor 40 (optional) is provided. This output adjusts a carburetter or fuel injector.
GB4861473A 1972-10-19 1973-10-18 Control of the composition of the exhaust gas of internal combustion engines Expired GB1446556A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2251167A DE2251167C3 (en) 1972-10-19 1972-10-19 Device for exhaust gas detoxification from internal combustion engines
DE2321721A DE2321721C2 (en) 1973-04-28 1973-04-28 Device for reducing harmful components of exhaust gas emissions from internal combustion engines

Publications (1)

Publication Number Publication Date
GB1446556A true GB1446556A (en) 1976-08-18

Family

ID=25763974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4861473A Expired GB1446556A (en) 1972-10-19 1973-10-18 Control of the composition of the exhaust gas of internal combustion engines

Country Status (6)

Country Link
JP (1) JPS5834655B2 (en)
ES (1) ES419752A1 (en)
FR (1) FR2209046B1 (en)
GB (1) GB1446556A (en)
IT (1) IT998750B (en)
SE (1) SE393161B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398485A2 (en) * 2002-09-13 2004-03-17 Delphi Technologies, Inc. Control method

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517334A (en) * 1974-07-08 1976-01-21 Nissan Motor Enjinno nenryoseigyosochi
JPS5844845B2 (en) * 1975-06-05 1983-10-05 株式会社デンソー kuunenhikikanshikinenriyoufunshiyaseigiyosouchi
DE2554988C2 (en) * 1975-12-06 1985-01-10 Robert Bosch Gmbh, 7000 Stuttgart Method for determining the composition of the operating mixture fed to an internal combustion engine or the combustion sequence of the operating mixture and device for carrying out the method
JPS5281434A (en) * 1975-12-27 1977-07-07 Nissan Motor Co Ltd Air fuel ratio controller
DE2702863C2 (en) * 1977-01-25 1986-06-05 Robert Bosch Gmbh, 7000 Stuttgart Method and device for regulating the mixture ratio components of the operating mixture fed to an internal combustion engine
GB1604227A (en) * 1977-06-23 1981-12-02 Lucas Industries Ltd Internal combustion engine fuel control system
DE2739508C2 (en) * 1977-09-02 1986-01-16 Robert Bosch Gmbh, 7000 Stuttgart Device for extreme value control in internal combustion engines
US4186700A (en) * 1978-09-01 1980-02-05 Motorola, Inc. Low leakage integrator for carburetor control
DE2944834A1 (en) * 1979-11-07 1981-05-27 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR REGULATING THE LAMBDA AIR NUMBER IN A SELF-IGNITION COMBUSTION ENGINE
JPS59141747A (en) * 1983-02-02 1984-08-14 Fujitsu Ten Ltd Air-fuel ratio controlling system
JPS6111361U (en) * 1984-06-26 1986-01-23 株式会社 くろがね工作所 school chair

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1917487A1 (en) * 1969-04-05 1970-10-22 Bosch Gmbh Robert Device for controlling the amount of fuel for internal combustion engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398485A2 (en) * 2002-09-13 2004-03-17 Delphi Technologies, Inc. Control method
EP1398485A3 (en) * 2002-09-13 2005-04-20 Delphi Technologies, Inc. Control method

Also Published As

Publication number Publication date
JPS5834655B2 (en) 1983-07-28
FR2209046A1 (en) 1974-06-28
FR2209046B1 (en) 1976-10-01
ES419752A1 (en) 1976-12-01
JPS4973533A (en) 1974-07-16
IT998750B (en) 1976-02-20
SE393161B (en) 1977-05-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921018