EP0806560B1 - Dispositif de régulation du ralenti d'un moteur automobile à combustion - Google Patents

Dispositif de régulation du ralenti d'un moteur automobile à combustion Download PDF

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Publication number
EP0806560B1
EP0806560B1 EP97105087A EP97105087A EP0806560B1 EP 0806560 B1 EP0806560 B1 EP 0806560B1 EP 97105087 A EP97105087 A EP 97105087A EP 97105087 A EP97105087 A EP 97105087A EP 0806560 B1 EP0806560 B1 EP 0806560B1
Authority
EP
European Patent Office
Prior art keywords
regulating device
combustion engine
idling speed
vehicle
internal combustion
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 - Lifetime
Application number
EP97105087A
Other languages
German (de)
English (en)
Other versions
EP0806560A1 (fr
Inventor
Gerhard Dr. Thoma
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0806560A1 publication Critical patent/EP0806560A1/fr
Application granted granted Critical
Publication of EP0806560B1 publication Critical patent/EP0806560B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02D41/1497—With detection of the mechanical response of the engine
    • F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/1015—Engines misfires

Definitions

  • the invention relates to a control device for the idle speed of a a vehicle driving internal combustion engine, one with regard to the smooth running is set to a favorable speed value.
  • the smooth running of the internal combustion engine is determined and then by an electronic control unit the idle speed to between Two limit values are set such that the smoothness of the Internal combustion engine optimal or the uneven running of the internal combustion engine is minimal.
  • the type of uneven running can be recorded be multi-layered, for example it is possible to determine the round trip times to determine the internal combustion engine crankshaft or differential quotients of this, besides an ion current measurement in the combustion chamber is proposed, however, pressure fluctuations or light intensity fluctuations can also occur can be evaluated in the combustion chamber, these can also and other specific sizes in the exhaust pipe of the internal combustion engine are determined become.
  • US-A-5,418,858 discloses detection and control of the vibrations which be caused by an internal combustion engine. Depending on measured values, the are detected by means of acceleration sensors and / or noise sensors in US-A-5,418,858 an intervention in the bearing of the internal combustion engine instead. In this known control system, expensive additional sensors are accordingly in the Motor vehicle required.
  • the object of the invention is to provide a control device that meets these requirements .
  • the smoothness is determined according to claim 1.
  • the aim is for vehicles powered by internal combustion engines to achieve such an idle quality of the engine that of the vehicle occupants do not have the internal combustion engine operating at idle more perceived by vibrations and / or noises can. That of the internal combustion engine, of the exhaust system and others Vibrations generated by vehicle powertrain units may thus not in the resonance frequency of the vehicle body. It has It has been shown that on every single copy of a vehicle targeted adjustment or trimming of the idle speed of this condition can do justice, however this is for a large series because of the existing ones Series spreading is of course not optimally possible. In the In practice, vehicles with idling problems can often be crucial improve if the idle speed changes by a few percent becomes.
  • the smoothness according to the invention is based on Signals at least one in the vehicle - Determined interior noise sensor.
  • the whole can be available standing idle range, which is defined by lower and upper limits for the Idle speed can be limited, be driven through, one electronic control unit for the idle speed that speed value with the best idle quality, seeks out. It is therefore measured which is actually noticeable for vehicle occupants Change in idle speed, followed by that speed value is set for the feeling of smoothness of the vehicle occupants is optimal.
  • noise sensors or Microphones can, for example, the noise level in the vehicle interior measured on the vehicle seat and / or on the other seats at idling speed become.
  • the regulation can then take place as already explained, i. H. an electronic control unit for determining the most favorable idle speed value causes the electronic control unit of the internal combustion engine to different speed values in the available idle speed range approach and evaluates the resulting or adjusting noise level.
  • the speed value is set at which the lowest noise level results. In doing so existing as noise sensors in the vehicle interior Microphones used in the hands-free system of a car phone or used.
  • a computer program for provided a most favorable compromise value for the idling speed be if there are ambiguous smooth running measured values based on the sensor signals surrender.
  • other boundary conditions are also taken into account.
  • Such additional boundary conditions are, for example, the optimal consumption Called operation, d. H. in particular the lowest possible Idle speed.
  • consideration can also be given to the Exhaust emissions or, for example, the state of charge of a battery. So with additional power requirements of additional units, such as air conditioning and / or various electrical consumers temporarily a higher, comfort-optimized idling speed using the same procedures can be found by simply no deviation of the speed value down, d. H. allowed to lower values and the control range if necessary upwards, d. H. is expanded to higher speed values.
  • the electronic control unit can preferably be used to determine the In terms of smooth running, the most favorable idle speed value is self-learning work. This means that once an optimal speed value has been found is started up first - if the sensor signals, exceed a threshold - the idle speed is changed to a more favorable in terms of smoothness Achieve speed value.
  • the electronic control unit for determining the idle speed value still with an active sound absorption system like it for example is known from DE 42 26 885 A1.
  • this electronics determines the disturbing frequencies in idle mode, calculates another idle speed value that is no longer disturbing and controls this in the control electronics of the internal combustion engine.
  • this and a number of other details may vary be designed without leaving the content of the claims. Always can the increasing demands on the idle quality of von Internal combustion engine driven vehicles, especially those that are offered in widely varying engines, without expensive additional measures be met in a simple manner.

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)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Claims (4)

  1. Installation de régulation du régime de ralenti d'un moteur à combustion interne entraínant un véhicule, selon lequel on règle la vitesse de rotation de ralenti la plus avantageuse en fonction de la régularité de fonctionnement,
    caractérisée en ce qu'
    on détermine la régularité de fonctionnement à l'aide de signaux d'au moins un capteur de bruit équipant l'habitacle du véhicule,
    le capteur de bruit est le micro d'une installation de téléphone mains libres d'un téléphone de voiture.
  2. Installation de régulation selon la revendication 1,
    caractérisée en ce qu'
    en particulier pour des valeurs de mesure de régularité de fonctionnement non évidentes, un programme de calcul détermine en tenant compte d'autres conditions limites, un compromis intéressant pour le régime de ralenti.
  3. Installation de régulation selon l'une des revendications 1 et 2,
    caractérisée en ce qu'
    une unité électronique travaille en auto-apprentissage pour déterminer le régime de ralenti.
  4. Installation de régulation selon l'une des revendications précédentes,
    caractérisée en ce qu'
    une unité de régulation électronique pour déterminer le régime de ralenti est combinée à un système actif d'absorption de son.
EP97105087A 1996-05-08 1997-03-26 Dispositif de régulation du ralenti d'un moteur automobile à combustion Expired - Lifetime EP0806560B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19618403 1996-05-08
DE19618403A DE19618403A1 (de) 1996-05-08 1996-05-08 Regeleinrichtung für die Leerlauf-Drehzahl einer Fahrzeug-Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0806560A1 EP0806560A1 (fr) 1997-11-12
EP0806560B1 true EP0806560B1 (fr) 2000-11-02

Family

ID=7793651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105087A Expired - Lifetime EP0806560B1 (fr) 1996-05-08 1997-03-26 Dispositif de régulation du ralenti d'un moteur automobile à combustion

Country Status (3)

Country Link
EP (1) EP0806560B1 (fr)
DE (2) DE19618403A1 (fr)
ES (1) ES2152588T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10062349A1 (de) 2000-12-14 2002-06-20 Daimler Chrysler Ag Verfahren und Anordnung zur Steuerung und/oder Regelung einer Last eines Fahrzeugs
DE102018207176A1 (de) * 2018-05-08 2019-11-14 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Steuereinheit zur Erkennung von Laufunruhe eines Antriebs
CN111255585B (zh) * 2018-11-30 2022-08-09 联合汽车电子有限公司 混合气多点自学习方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231766A1 (de) * 1982-08-26 1984-03-01 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum regeln der leerlaufdrehzahl bei einer brennkraftmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58140449A (ja) * 1982-02-17 1983-08-20 Nippon Soken Inc 内燃機関の空燃比制御装置
JPS60175745A (ja) * 1984-02-22 1985-09-09 Toyota Motor Corp 電子制御デイ−ゼルエンジンの気筒別燃料噴射量学習制御方法
DE3812289C2 (de) * 1987-04-20 1995-06-08 Mitsubishi Electric Corp Leerlaufdrehzahlregelvorrichtung für eine Brennkraftmaschine
JP2832299B2 (ja) * 1989-05-18 1998-12-09 富士重工業株式会社 点火時期学習制御方法
JP2782231B2 (ja) * 1989-05-18 1998-07-30 富士重工業株式会社 点火時期学習制御方法
DE4101985A1 (de) * 1991-01-24 1992-07-30 Domarkas Andrew Verfahren zum ermitteln von unregelmaessigkeiten zweier miteinander arbeitender elemente
FR2682718A1 (fr) * 1991-10-16 1993-04-23 Siemens Automotive Sa Procede et dispositif de detection de rates d'allumage du melange air/carburant d'alimentation d'un moteur a combustion interne propulsant un vehicule automobile et leurs applications.
JPH064144A (ja) * 1992-06-19 1994-01-14 Hitachi Ltd 車両のアクティブ振動騒音制御装置
US5418858A (en) * 1994-07-11 1995-05-23 Cooper Tire & Rubber Company Method and apparatus for intelligent active and semi-active vibration control

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231766A1 (de) * 1982-08-26 1984-03-01 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum regeln der leerlaufdrehzahl bei einer brennkraftmaschine

Also Published As

Publication number Publication date
EP0806560A1 (fr) 1997-11-12
ES2152588T3 (es) 2001-02-01
DE59702551D1 (de) 2000-12-07
DE19618403A1 (de) 1997-11-13

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