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EP0157004A3 - Lambda-controlled mixture-measuring system for an internal-combustion engine - Google Patents

Lambda-controlled mixture-measuring system for an internal-combustion engine Download PDF

Info

Publication number
EP0157004A3
EP0157004A3 EP84116240A EP84116240A EP0157004A3 EP 0157004 A3 EP0157004 A3 EP 0157004A3 EP 84116240 A EP84116240 A EP 84116240A EP 84116240 A EP84116240 A EP 84116240A EP 0157004 A3 EP0157004 A3 EP 0157004A3
Authority
EP
European Patent Office
Prior art keywords
combustion engine
controller
exhaust
internal combustion
gas sensor
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.)
Granted
Application number
EP84116240A
Other languages
German (de)
Other versions
EP0157004B1 (en
EP0157004A2 (en
Inventor
Albrecht Dipl.-Ing. Clement
Dieter Dipl.-Ing. Mayer
Ernest Dipl.-Ing. Wild
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
Priority to AT84116240T priority Critical patent/ATE47201T1/en
Publication of EP0157004A2 publication Critical patent/EP0157004A2/en
Publication of EP0157004A3 publication Critical patent/EP0157004A3/en
Application granted granted Critical
Publication of EP0157004B1 publication Critical patent/EP0157004B1/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
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1474—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method by detecting the commutation time of the sensor
    • 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)
    • F02D41/1483—Proportional component
    • 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
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen

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)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Of Engines (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention is directed to a mixture metering arrangement for an internal combustion engine and includes an exhaust-gas sensor which is exposed to the exhaust gas of the internal combustion engine. The exhaust-gas sensor indicates the air ratio lambda and preferably has a two-level characteristic. The sensor output signals are acted upon by a follow-on controller which is preferably a PI-controller. The controller output quantity acts upon the mixture composition in a corrective fashion. In this arrangement, the control oscillation of the controller output quantity is adjusted to a predetermined amplitude by means of a superposed control. In particular, the integral component of the control oscillation is influenced in a manner causing it to have the same amplitude as the proportional component while in the steady operating condition. Thus, it is possible to maintain the maximum control frequency in any operating range of the internal combustion engine so that the controller always operates at its optimum. In addition, the effects of deviations occurring from one engine to another or from one exhaust-gas sensor to another as well as of long-term variations are suppressed.
EP84116240A 1984-03-09 1984-12-22 Lambda-controlled mixture-measuring system for an internal-combustion engine Expired EP0157004B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84116240T ATE47201T1 (en) 1984-03-09 1984-12-22 LAMBDA CONTROLLED MIXTURE METERING SYSTEM FOR AN ENGINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3408635 1984-03-09
DE19843408635 DE3408635A1 (en) 1984-03-09 1984-03-09 LAMBDA-CONTROLLED MIXING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Publications (3)

Publication Number Publication Date
EP0157004A2 EP0157004A2 (en) 1985-10-09
EP0157004A3 true EP0157004A3 (en) 1986-10-15
EP0157004B1 EP0157004B1 (en) 1989-10-11

Family

ID=6230002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84116240A Expired EP0157004B1 (en) 1984-03-09 1984-12-22 Lambda-controlled mixture-measuring system for an internal-combustion engine

Country Status (5)

Country Link
US (1) US4671244A (en)
EP (1) EP0157004B1 (en)
JP (1) JPS60190633A (en)
AT (1) ATE47201T1 (en)
DE (2) DE3408635A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644472A1 (en) * 1986-10-30 1988-07-07 Vdo Schindling METHOD AND CIRCUIT FOR DETECTING THE READY FOR OPERATION OF AN OXYGEN MEASUREMENT PROBE
JPH03134240A (en) * 1989-10-18 1991-06-07 Japan Electron Control Syst Co Ltd Air-fuel ratio feedback controller of internal combustion engine
DE4024212C2 (en) * 1990-07-31 1999-09-02 Bosch Gmbh Robert Process for the constant lambda control of an internal combustion engine with a catalyst
DE4024213A1 (en) * 1990-07-31 1992-02-06 Bosch Gmbh Robert METHOD FOR LAMB CONTROL OF AN INTERNAL COMBUSTION ENGINE WITH CATALYST
US5282360A (en) * 1992-10-30 1994-02-01 Ford Motor Company Post-catalyst feedback control
DE9301777U1 (en) * 1993-02-10 1994-03-17 Siemens AG, 80333 München Gas analyzer for detecting and displaying the deviation of the air / fuel ratio of a gas mixture from a predetermined value
US5363831A (en) * 1993-11-16 1994-11-15 Unisia Jecs Corporation Method of and an apparatus for carrying out feedback control on an air-fuel ratio in an internal combustion engine
DE102006009412A1 (en) * 2006-02-23 2007-08-30 Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg Solar modular system has self-supporting support structure, support profile with lateral inserted profile for laterally adding an additional support profile or connecting profile or terminal profile and heat dissipation structure
US8347866B2 (en) * 2009-09-29 2013-01-08 GM Global Technology Operations LLC Fuel control system and method for more accurate response to feedback from an exhaust system with an air/fuel equivalence ratio offset
DE102010031654B4 (en) 2010-07-22 2023-10-05 Robert Bosch Gmbh Method for operating an internal combustion engine
DE102011082641A1 (en) * 2011-09-14 2013-03-14 Robert Bosch Gmbh Method and device for controlled system modification
RU2487542C2 (en) * 2011-10-21 2013-07-20 Государственное научное учреждение Всероссийский научно-исследовательский институт защиты растений Российской академии сельскохозяйственных наук Entomopathogenic biopreparation for protecting plants from pests and method for preparation thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029061A (en) * 1974-10-21 1977-06-14 Nissan Motor Co., Ltd. Apparatus for controlling the air-fuel mixture ratio of internal combustion engine
US4145999A (en) * 1976-03-22 1979-03-27 Toyota Jidosha Kogyo Kabushiki Kaisha Electronic feedback control system for fuel injection in internal combustion engines of fuel injection type
GB2007407A (en) * 1977-10-03 1979-05-16 Gen Motors Corp Closed loop fuel control system for an internal combustion engine having air/fuel ratio enrichment during period of engine warmup
DE3039436A1 (en) * 1980-10-18 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart CONTROL DEVICE FOR A FUEL METERING SYSTEM OF AN INTERNAL COMBUSTION ENGINE
US4350130A (en) * 1980-08-27 1982-09-21 Ford Motor Company Air fuel mixture control system and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234318U (en) * 1975-09-01 1977-03-10
JPS5281435A (en) * 1975-12-27 1977-07-07 Nissan Motor Co Ltd Air fuel ratio controller
JPS52135923A (en) * 1976-05-08 1977-11-14 Nissan Motor Co Ltd Air fuel ratio control equipment
JPS589261B2 (en) * 1976-09-24 1983-02-19 日産自動車株式会社 Air fuel ratio control device
US4241710A (en) * 1978-06-22 1980-12-30 The Bendix Corporation Closed loop system
JPS5549550A (en) * 1978-10-02 1980-04-10 Aisan Ind Co Ltd Air-fuel ratio control device
DE3124676A1 (en) * 1981-06-24 1983-01-13 Robert Bosch Gmbh, 7000 Stuttgart ELECTRONICALLY CONTROLLED FUEL METERING SYSTEM
JPS5827857A (en) * 1981-08-12 1983-02-18 Mitsubishi Electric Corp Air-fuel ratio controlling method
JPS5879644A (en) * 1981-11-04 1983-05-13 Toyota Motor Corp Air-fuel ratio control method for internal combustion engine
US4528962A (en) * 1981-12-11 1985-07-16 Robert Bosch Gmbh Method and apparatus for lambda regulation in an internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029061A (en) * 1974-10-21 1977-06-14 Nissan Motor Co., Ltd. Apparatus for controlling the air-fuel mixture ratio of internal combustion engine
US4145999A (en) * 1976-03-22 1979-03-27 Toyota Jidosha Kogyo Kabushiki Kaisha Electronic feedback control system for fuel injection in internal combustion engines of fuel injection type
GB2007407A (en) * 1977-10-03 1979-05-16 Gen Motors Corp Closed loop fuel control system for an internal combustion engine having air/fuel ratio enrichment during period of engine warmup
US4350130A (en) * 1980-08-27 1982-09-21 Ford Motor Company Air fuel mixture control system and method
DE3039436A1 (en) * 1980-10-18 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart CONTROL DEVICE FOR A FUEL METERING SYSTEM OF AN INTERNAL COMBUSTION ENGINE

Also Published As

Publication number Publication date
US4671244A (en) 1987-06-09
DE3480106D1 (en) 1989-11-16
DE3408635A1 (en) 1985-09-12
EP0157004B1 (en) 1989-10-11
ATE47201T1 (en) 1989-10-15
JPH0544552B2 (en) 1993-07-06
EP0157004A2 (en) 1985-10-09
JPS60190633A (en) 1985-09-28

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