KR910700402A - Lambda probe ready to detect - Google Patents

Lambda probe ready to detect

Info

Publication number
KR910700402A
KR910700402A KR1019900702261A KR900702261A KR910700402A KR 910700402 A KR910700402 A KR 910700402A KR 1019900702261 A KR1019900702261 A KR 1019900702261A KR 900702261 A KR900702261 A KR 900702261A KR 910700402 A KR910700402 A KR 910700402A
Authority
KR
South Korea
Prior art keywords
voltage
probe
lean
comparing
mixer
Prior art date
Application number
KR1019900702261A
Other languages
Korean (ko)
Inventor
슈나이벨 에버하르트
슈나이더 에리히
스티링 바르틴
Original Assignee
랄프 베렌스, 게오르그 뮐러
로베르트 보쉬 게엠베하
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 랄프 베렌스, 게오르그 뮐러, 로베르트 보쉬 게엠베하 filed Critical 랄프 베렌스, 게오르그 뮐러
Publication of KR910700402A publication Critical patent/KR910700402A/en

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
    • 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
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • 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)
    • F02D41/148—Using a plurality of comparators

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

내용 없음.No content.

Description

람다 프로브 동작 준비 검출 방법Lambda probe ready to detect

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 두개의 측정 채널로 프로브 전압을 검출하는 회로 다이어그램.1 is a circuit diagram for detecting probe voltage with two measurement channels.

제2도는 동작적으로 가열 람다 프로브의 결함을 검출하는 방법을 설명하기 위한 플로우 다이어그램.2 is a flow diagram for explaining a method of operatively detecting a defect of a heating lambda probe.

제3도는 냉각 람다 프로브의 동작 준비를 검출하는 방법을 설명하기 위한 플로우 다이어그램.3 is a flow diagram for explaining a method of detecting preparation for operation of a cooling lambda probe.

Claims (5)

람다 프로브의 동작 준비를 검출 방법에 있어서, 린 세팅에 대해 동작 준비를 검출하기 위하여, 제어 편차 발진 크기를 검출하는 단계와, 발진 크기와 저 진폭 임계 값을 비교하는 단계와, 제어 발진 주파수를 검출하는 단계와, 결정된 주파수와 주파수 임계 값을 비교하는 단계와, 결정된 발진 크기가 진폭 임계 값 아래이며 동시에 결정된 주파수가 주파수 아래일때 결함신호를 방출하는 단계를 수행하는 것을 특징으로 하는 람다프로브 동작 준비 검출 방법.A method for detecting an operation preparation of a lambda probe, the method comprising: detecting a control deviation oscillation magnitude, comparing the oscillation magnitude with a low amplitude threshold value, and detecting a control oscillation frequency in order to detect an operation preparation with respect to a lean setting; And comparing the determined frequency with the frequency threshold, and emitting a fault signal when the determined oscillation magnitude is below the amplitude threshold and the determined frequency is below the frequency. Way. 제1항에 있어서, 린 세팅에 대해 동작 준비를 검출하기 위해 저 증폭 프로브 전압을 검출하여 검출된 값이 린 또는 비-린 혼합기를 표시하는 지에 관해 결정하는 단계와, 고 증폭 프로브 전압을 검출하여 검출된 값이 린 또는 비-린 혼합기를 표시하는 지에 관해 결정하는 단계와, 두개의 결정된 혼합기 범위를 비교하는 단계와, 결정된 혼합기 범위가 부정일 때 결함 신호를 방출하는 단계를 수행하는 것을 특징으로 하는 람다 프로브 동작 준비 검출 방법.The method of claim 1, further comprising: detecting a low amplification probe voltage to detect readiness for operation with a lean setting and determining whether the detected value indicates a lean or non-lean mixer; Determining whether the detected value indicates a lean or non-lean mixer, comparing the two determined mixer ranges, and emitting a fault signal when the determined mixer range is negative. Lambda probe operation ready detection method. 제1 또는 제2항에 있어서, 린 세팅에 대해 동작 준비를 검출하기 위하여, 프로브 전압을 검출하는 단계와, 상기 전압과, 린 혼합기 및 리치 혼합기용 전압 임계 값을 비교하는 단계와, 시작후 경과된 시간 주기를 결정하는 단계와, 상기 시간 주기와 시간 주기 임계 값을 비교하는 단계와, 검출된 전압이 전압 임계 값중 하나에 도달하거나 또는 결정된 시간 주기가 시간 주기 임계 값을 초과할때 준비 신호를 방출하는 단계를 수행하는 것을 특징으로 하는 람다 프로브 동작 준비 검출 방법.The method of claim 1, further comprising: detecting a probe voltage, comparing the voltage with a voltage threshold for the lean mixer and the rich mixer, to detect ready for operation for a lean setting; Determining a predetermined time period, comparing the time period with the time period threshold value, and when the detected voltage reaches one of the voltage threshold values or when the determined time period exceeds the time period threshold value. Lambda probe operation preparation detection method characterized in that it performs the step of emitting. 제1 내지 3항중 어느 한 항에 있어서, 린 세팅에 대해 동작 준비를 검출하기 위하여, 프로브 전압이 냉각 프로브의 내부 저항 값보다 작으나 가열 프로브의 내부 저항 값보다 크며, 프로브상의 부하 저항기에서 측정 전압을 태핑하는 단계와, 측정 전압과 준비 임계 전압을 비교하는 단계와, 비교 결과가 포지티브일 때 준비신호를 방출하는 단계를 수행하는 것을 특징으로 하는 람다 프로브 동작 준비 검출 방법.The method of claim 1, wherein the probe voltage is less than the internal resistance value of the cooling probe but greater than the internal resistance value of the heating probe, in order to detect readiness for operation with a lean setting. And a step of tapping, comparing the measured voltage with the ready threshold voltage, and emitting a ready signal when the comparison result is positive. 제1 내지 4항중 어느 한 항에 있어서, 프로브 전압은 조정가능한 카운터 전압을 갖는 부하 저항기의 직렬 접속에서 태프되는 전압이며, 상기 직렬 접속은 프로브와 병렬 관계이며, 각 경우 카운터 전압원의 전압은 특별히 요구되는 람다 값에 응하는 전압으로 세트되는 것을 특징으로 하는 람다 프로브 동작 준비 검출 방법.The probe voltage according to any one of claims 1 to 4, wherein the probe voltage is a voltage that is tapped in series connection of a load resistor with an adjustable counter voltage, the series connection in parallel with the probe, in which case the voltage of the counter voltage source is specifically required. The lambda probe operation preparation detection method characterized in that it is set to a voltage corresponding to the lambda value. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900702261A 1989-02-18 1990-01-20 Lambda probe ready to detect KR910700402A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3904986A DE3904986A1 (en) 1989-02-18 1989-02-18 METHOD FOR DETECTING THE READY FOR OPERATION OF A LAMBED PROBE
DEP3904986.8 1989-02-18
PCT/DE1990/000032 WO1990009517A1 (en) 1989-02-18 1990-01-20 Process for checking the performance of a lambda sensor

Publications (1)

Publication Number Publication Date
KR910700402A true KR910700402A (en) 1991-03-15

Family

ID=6374397

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900702261A KR910700402A (en) 1989-02-18 1990-01-20 Lambda probe ready to detect

Country Status (3)

Country Link
KR (1) KR910700402A (en)
DE (1) DE3904986A1 (en)
WO (1) WO1990009517A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113316C2 (en) * 1991-04-24 2003-09-11 Bosch Gmbh Robert Connection circuit for a lambda probe and test method for such a circuit
DE4243493A1 (en) * 1992-12-22 1994-06-23 Bosch Gmbh Robert Method and device for monitoring a control device
US5325711A (en) * 1993-07-06 1994-07-05 Ford Motor Company Air-fuel modulation for oxygen sensor monitoring
DE19530316C1 (en) * 1995-08-17 1996-09-19 Siemens Ag Gas sensor diagnostic method for IC engine control
DE19828929A1 (en) * 1998-06-29 2000-01-05 Siemens Ag Method for checking the dynamic behavior of a sensor in the exhaust tract of an internal combustion engine
DE19900740A1 (en) * 1999-01-12 2000-07-13 Bosch Gmbh Robert Method and device for operating an internal combustion engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE411784B (en) * 1975-04-18 1980-02-04 Bosch Gmbh Robert SET AND DEVICE FOR DETERMINING THE DURATION OF FUEL SUPPLY PULSE
DE2608245C2 (en) * 1976-02-28 1983-08-11 Robert Bosch Gmbh, 7000 Stuttgart Method and device for monitoring the operational readiness of an oxygen measuring probe
JPS53125528A (en) * 1977-04-08 1978-11-01 Nissan Motor Co Ltd Inspection unit for air fuel ratio controller
DE3024607A1 (en) * 1980-06-28 1982-02-04 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR REGULATING THE FUEL / AIR RATIO IN INTERNAL COMBUSTION ENGINES
JPS5751936A (en) * 1980-09-12 1982-03-27 Hitachi Ltd Controlling and trouble discrimination initializing timing setting system for engine controller
DE3149136A1 (en) * 1981-12-11 1983-06-23 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR REGULATING THE FUEL-AIR RATIO IN INTERNAL COMBUSTION ENGINES

Also Published As

Publication number Publication date
WO1990009517A1 (en) 1990-08-23
DE3904986A1 (en) 1990-08-23

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