GB1449917A - Regulators for internal combustion engines - Google Patents

Regulators for internal combustion engines

Info

Publication number
GB1449917A
GB1449917A GB149174A GB149174A GB1449917A GB 1449917 A GB1449917 A GB 1449917A GB 149174 A GB149174 A GB 149174A GB 149174 A GB149174 A GB 149174A GB 1449917 A GB1449917 A GB 1449917A
Authority
GB
United Kingdom
Prior art keywords
output
fed
bridge
probe
ratio
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
GB149174A
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1449917A publication Critical patent/GB1449917A/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
    • 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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

1449917 Automatic control of I C engines ROBERT BOSCH GmbH 11 Jan 1974 [12 Jan 1973] 01491/74 Heading G3R In a system for controlling the ratio of fuel and air fed to an I.C. engine in response to the exhaust gas composition, the latter is sensed by a probe 1 in the engine exhaust producing a signal which is fed to one arm of a bridge circuit, a second arm of the bridge receives a reference signal, and an operational amplifier 15 has its inverting and non- inverting inputs connected across the diagonal of the bridge and produces a control signal to adjust the fuel: air ratio. As shown the probe output is fed to a transistor 2 connected as an emitterfollower. A transistor 6 receives a reference voltage which is derived from a Zener diode 11 and adjustable by means of resistor 9. The transistors 2, 6 are of opposite conductivity types and are connected to temperature compensate each other. The other arms of the bridge are formed by resistors 13, 14. If the probe output is above or below the reference voltage, the output of the amplifier 15 becomes substantially equal to the potential of the supply lead 3 or 10 respectively. The voltage range of this output is reduced by a circuit using transistors 21, 22 before being fed to an integrating amplifier 29. The time constant of the integrator is adjustable by a switch 27, and the integrator output forms the ratio control signal.
GB149174A 1973-01-12 1974-01-11 Regulators for internal combustion engines Expired GB1449917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2301353A DE2301353A1 (en) 1973-01-12 1973-01-12 CONTROL DEVICE FOR EXHAUST GAS DETOXIFICATION FROM COMBUSTION MACHINERY

Publications (1)

Publication Number Publication Date
GB1449917A true GB1449917A (en) 1976-09-15

Family

ID=5868812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB149174A Expired GB1449917A (en) 1973-01-12 1974-01-11 Regulators for internal combustion engines

Country Status (10)

Country Link
US (1) US3903853A (en)
JP (1) JPS5749857B2 (en)
BE (1) BE809667A (en)
DE (1) DE2301353A1 (en)
ES (1) ES422211A1 (en)
FR (1) FR2214047B1 (en)
GB (1) GB1449917A (en)
IT (1) IT1006850B (en)
NL (1) NL7400417A (en)
SE (1) SE389538B (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2422938C2 (en) * 1974-05-11 1982-07-08 Robert Bosch Gmbh, 7000 Stuttgart Switching device for the controlled addition of additional air to the exhaust gas of an internal combustion engine
JPS5534283Y2 (en) * 1974-06-17 1980-08-14
JPS5228934B2 (en) * 1974-11-01 1977-07-29
US3948228A (en) * 1974-11-06 1976-04-06 The Bendix Corporation Exhaust gas sensor operational detection system
GB1518763A (en) * 1975-03-07 1978-07-26 Nissan Motor Closed loop air fuel ratio control system using exhaust composition sensor
JPS51104131A (en) * 1975-03-10 1976-09-14 Hitachi Ltd Enjinno kunenhiseigyosochi
SE411784B (en) * 1975-04-18 1980-02-04 Bosch Gmbh Robert SET AND DEVICE FOR DETERMINING THE DURATION OF FUEL SUPPLY PULSE
US4178884A (en) * 1975-06-05 1979-12-18 Nippondenso Co., Ltd. Method and system to control the mixture air-to-fuel ratio
JPS5950862B2 (en) * 1975-08-05 1984-12-11 日産自動車株式会社 Air fuel ratio control device
US4210106A (en) * 1975-10-13 1980-07-01 Robert Bosch Gmbh Method and apparatus for regulating a combustible mixture
JPS5248729A (en) * 1975-10-16 1977-04-19 Nissan Motor Co Ltd Air-fuel ratio controller
JPS52115927A (en) * 1975-11-24 1977-09-28 Nippon Denso Co Ltd Air fuel ratio feed back controller for internal combustion engine
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
JPS5834660B2 (en) * 1975-12-25 1983-07-28 日産自動車株式会社 Kuunenpiseigiyosouchi
US4156404A (en) * 1975-12-30 1979-05-29 Nissan Motor Company, Limited Electronic closed loop air-fuel ratio control system
GB1572043A (en) * 1976-02-19 1980-07-23 Bosch Gmbh Robert Method and system for decreasing the injurious constituents in the exhaust gases of internal combustion engines
JPS5819319Y2 (en) * 1976-03-23 1983-04-20 株式会社デンソー Air-fuel ratio feedback mixture control device
JPS52145223U (en) * 1976-04-30 1977-11-04
JPS52154930A (en) * 1976-05-22 1977-12-23 Bosch Gmbh Robert Device for controlling fuellair ratio of mixture for internal combustion engine
JPS586052B2 (en) * 1976-09-06 1983-02-02 日産自動車株式会社 Air fuel ratio control device
JPS5395431A (en) * 1977-02-01 1978-08-21 Toyota Motor Corp Trouble alarm device for air fuel ratio detector
US4350130A (en) * 1980-08-27 1982-09-21 Ford Motor Company Air fuel mixture control system and method
US4671243A (en) * 1986-02-28 1987-06-09 Motorola, Inc. Oxygen sensor fault detection and response system
JPS63162768U (en) * 1987-04-15 1988-10-24
JP2964088B2 (en) * 1989-03-31 1999-10-18 トッパン・フォームズ株式会社 Continuous paper stacker
JPH04321740A (en) * 1991-04-19 1992-11-11 Mitsubishi Electric Corp Engine air fuel ratio control device
US5539638A (en) * 1993-08-05 1996-07-23 Pavilion Technologies, Inc. Virtual emissions monitor for automobile
US5386373A (en) * 1993-08-05 1995-01-31 Pavilion Technologies, Inc. Virtual continuous emission monitoring system with sensor validation
US5522250A (en) * 1995-04-06 1996-06-04 Ford Motor Company Aged exhaust gas oxygen sensor simulator
US5970426A (en) * 1995-09-22 1999-10-19 Rosemount Analytical Inc. Emission monitoring system
US5980728A (en) * 1996-09-24 1999-11-09 Rosemont Analytical Inc. Diagnostic method and apparatus for solid electrolyte gas analyzer
US7805236B2 (en) * 2008-01-29 2010-09-28 Stephen Mullen Apparatus and method for adjusting the performance of an internal combustion engine
WO2013130744A1 (en) * 2012-02-28 2013-09-06 Wayne State University Using ion current signal for engine performance and emissions measuring techniques and methods for doing the same
WO2014052738A1 (en) * 2012-09-28 2014-04-03 Wayne State University Ion current use for combustion resonance detection, reduction and engine control

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624493A (en) * 1970-02-24 1971-11-30 Forbro Design Corp Regulated power supply employing integrated circuits
US3630072A (en) * 1970-04-30 1971-12-28 Mobil Oil Corp Hydrocarbon emissions computer
DE2204192C3 (en) * 1972-01-29 1979-03-22 Robert Bosch Gmbh, 7000 Stuttgart Device for improving the exhaust gases of a carburetor internal combustion engine
DE2206276C3 (en) * 1972-02-10 1981-01-15 Robert Bosch Gmbh, 7000 Stuttgart Method and device for reducing harmful components of exhaust gas emissions from internal combustion engines
US3815561A (en) * 1972-09-14 1974-06-11 Bendix Corp Closed loop engine control system

Also Published As

Publication number Publication date
FR2214047A1 (en) 1974-08-09
US3903853A (en) 1975-09-09
ES422211A1 (en) 1976-04-16
IT1006850B (en) 1976-10-20
JPS5749857B2 (en) 1982-10-25
NL7400417A (en) 1974-07-16
SE389538B (en) 1976-11-08
FR2214047B1 (en) 1976-10-08
JPS49109731A (en) 1974-10-18
BE809667A (en) 1974-05-02
DE2301353A1 (en) 1974-07-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee