EP0921295A2 - Méthode d'arrêt d'urgence d'un moteur diesel - Google Patents

Méthode d'arrêt d'urgence d'un moteur diesel Download PDF

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Publication number
EP0921295A2
EP0921295A2 EP98120446A EP98120446A EP0921295A2 EP 0921295 A2 EP0921295 A2 EP 0921295A2 EP 98120446 A EP98120446 A EP 98120446A EP 98120446 A EP98120446 A EP 98120446A EP 0921295 A2 EP0921295 A2 EP 0921295A2
Authority
EP
European Patent Office
Prior art keywords
diesel engine
board computer
exhaust
exhaust gas
engine
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
EP98120446A
Other languages
German (de)
English (en)
Other versions
EP0921295B1 (fr
EP0921295A3 (fr
Inventor
Josef Dipl.-Ing. Kreutmair (Fh)
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge 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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP0921295A2 publication Critical patent/EP0921295A2/fr
Publication of EP0921295A3 publication Critical patent/EP0921295A3/fr
Application granted granted Critical
Publication of EP0921295B1 publication Critical patent/EP0921295B1/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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • One embodiment is the electro-hydraulic emergency stop, which, when the diesel engine critical speeds reached, the fuel supply to the diesel engine is interrupted.
  • This electro-hydraulic emergency stop is expensive and prone to failure. A In this case, it is not possible to allow the storage rack to malfunction, there failure of this component the moment it works should, for self-destruction of the diesel engine by no longer permissible speeds leads.
  • Locking or blocking the control rod is extremely rare and is usually for contaminated or poor quality fuel that has been used for a long time was attributed. If during operation, e.g. B. in the upper part-load range, Blockage of the control rod occurs and no emergency shutdown of the diesel engine is present and the clutch is opened, so the diesel engine destroy yourself within one second by overspeeding.
  • the object of the invention is an extremely reliable emergency stop for a diesel engine to represent.
  • the object is achieved by the features of Method according to claim 1 solved.
  • a short circuit of the combustion air is formed by exhaust gas into the Intake air distribution box is inserted.
  • the contained in the short circuit Oxygen is quickly consumed by further ignitions in the cylinders. As a result, an ignitable mixture can no longer form, even if it continues to do so Diesel fuel is injected.
  • the drop in speed of the diesel engine is very fast when the clutch is open a closed exhaust flap represents an engine brake, so it is very effective is and the rotating mass of the diesel engine is not significant in this regard.
  • the diesel fuel is injected into the combustion chambers via Multi-hole nozzles so that the fuel is distributed like a mist.
  • the fuel is distributed like a mist.
  • At the compression stroke then becomes the fuel and - in this case no longer containing oxygen - Compressed gas, heated by the compression and as a non-ignitable gas mixture pushed out at the next bar. So it gets in the combustion chamber give no appreciable accumulation of fuel, so that a hydraulic shock may be excluded. However, it can, probably near the Exhaust valve device or in the catalytic converter or in both devices, depending on Arrangement, accumulate fuel in liquid form.
  • the diesel engine if an emergency shutdown has been carried out, it cannot easily be switched on again be.
  • a temperature sensor in the exhaust tract which is usually already is present, sufficient for the on-board computer to be below a temperature of e.g. B. 60 ° C, a signal to the computer for electronically controlled fuel metering indicates that the diesel engine can be put into operation again.
  • the diesel fuel which may be present in the exhaust tract will then burn relatively slowly and not explode like gasoline.
  • Fig. 1 the diesel engine 10 with the exhaust gas recirculation device 14 and the exhaust valve device 13 shown.
  • the control rod 17 (FIG. 2) of the injection pump 16th (Fig. 2) is blocked, and the clutch 20 (Fig. 2) is opened by a Signal from the on-board computer, the exhaust flap 12 closed and the exhaust gas recirculation valve 11 opened to the maximum.
  • the in this Short circuit is contained oxygen by ignitions in the cylinders quickly consumed. Fresh intake air 19 can also no longer be drawn in be because the exhaust 19 'jams in front of the exhaust flap 12.
  • FIG. 2 shows the diesel engine 10 in a side view with the intake air distribution box 15, the intake air 19, the exhaust gas recirculation device 14 with the Exhaust gas recirculation valve 11, the injection pump 16 with the control rod 17, the Coupling 19, the fuel supply line 18 and the EDC for the electronically regulated fuel metering.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP98120446A 1997-12-08 1998-10-29 Méthode d'arrêt d'urgence d'un moteur diesel Expired - Lifetime EP0921295B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19754306 1997-12-08
DE19754306A DE19754306A1 (de) 1997-12-08 1997-12-08 Verfahren zur Notabstellung eines Dieselmotors

Publications (3)

Publication Number Publication Date
EP0921295A2 true EP0921295A2 (fr) 1999-06-09
EP0921295A3 EP0921295A3 (fr) 2000-09-27
EP0921295B1 EP0921295B1 (fr) 2003-11-26

Family

ID=7851064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98120446A Expired - Lifetime EP0921295B1 (fr) 1997-12-08 1998-10-29 Méthode d'arrêt d'urgence d'un moteur diesel

Country Status (2)

Country Link
EP (1) EP0921295B1 (fr)
DE (2) DE19754306A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709569B2 (en) 2001-12-21 2004-03-23 Chevron U.S.A. Inc. Methods for pre-conditioning fischer-tropsch light products preceding upgrading
WO2017039447A1 (fr) * 2015-09-01 2017-03-09 Daf Trucks N.V. Système et procédé de détection et de neutralisation de l'emballement de moteur diesel.
WO2017222443A1 (fr) * 2016-06-22 2017-12-28 Scania Cv Ab Procédé permettant de commander un moteur à combustion interne pendant une combustion incontrôlée en son sein
WO2017222444A1 (fr) * 2016-06-22 2017-12-28 Scania Cv Ab Procédé et système permettant de déterminer un comportement incontrôlé d'un moteur à combustion interne d'un véhicule

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010056209A1 (de) 2010-12-24 2012-06-28 Daimler Ag Verfahren zum Betreiben einer Verbrennungskraftmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2010971A (en) * 1977-12-22 1979-07-04 Daimler Benz Ag Key-Operated Starting and Switching-Off Systems for Motor Vehicle Internal Combustion Engines
JPS55137330A (en) * 1979-04-16 1980-10-27 Mitsuwa Seiki Co Ltd Method and device for selectively controlling exhaust gas recirculation and engine brake
US4267807A (en) * 1978-07-13 1981-05-19 David Brown Tractors Limited Internal combustion engines
DE3426791A1 (de) * 1984-07-20 1986-02-06 Voest-Alpine Friedmann GmbH, Linz Notabstelleinrichtung fuer brennkraftmaschinen
DE4200612A1 (de) * 1992-01-13 1993-07-15 Ernst Karch Brennkraftmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2010971A (en) * 1977-12-22 1979-07-04 Daimler Benz Ag Key-Operated Starting and Switching-Off Systems for Motor Vehicle Internal Combustion Engines
US4267807A (en) * 1978-07-13 1981-05-19 David Brown Tractors Limited Internal combustion engines
JPS55137330A (en) * 1979-04-16 1980-10-27 Mitsuwa Seiki Co Ltd Method and device for selectively controlling exhaust gas recirculation and engine brake
DE3426791A1 (de) * 1984-07-20 1986-02-06 Voest-Alpine Friedmann GmbH, Linz Notabstelleinrichtung fuer brennkraftmaschinen
DE4200612A1 (de) * 1992-01-13 1993-07-15 Ernst Karch Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 002 (M-049), 9. Januar 1981 (1981-01-09) & JP 55 137330 A (MITSUWA SEIKI CO LTD), 27. Oktober 1980 (1980-10-27) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709569B2 (en) 2001-12-21 2004-03-23 Chevron U.S.A. Inc. Methods for pre-conditioning fischer-tropsch light products preceding upgrading
WO2017039447A1 (fr) * 2015-09-01 2017-03-09 Daf Trucks N.V. Système et procédé de détection et de neutralisation de l'emballement de moteur diesel.
RU2681206C1 (ru) * 2015-09-01 2019-03-05 Даф Тракс Н.В. Система и способ обнаружения и нейтрализации разноса дизельного двигателя
US10590877B2 (en) 2015-09-01 2020-03-17 Daf Trucks N.V. System and method for detecting and counteracting diesel engine runaway
WO2017222443A1 (fr) * 2016-06-22 2017-12-28 Scania Cv Ab Procédé permettant de commander un moteur à combustion interne pendant une combustion incontrôlée en son sein
WO2017222444A1 (fr) * 2016-06-22 2017-12-28 Scania Cv Ab Procédé et système permettant de déterminer un comportement incontrôlé d'un moteur à combustion interne d'un véhicule
KR20190015540A (ko) * 2016-06-22 2019-02-13 스카니아 씨브이 악티에볼라그 비정상 연소 중에 내연 기관을 제어하기 위한 방법
US11248539B2 (en) 2016-06-22 2022-02-15 Scania Cv Ab Method for controlling an internal combustion engine during uncontrolled combustion therein

Also Published As

Publication number Publication date
EP0921295B1 (fr) 2003-11-26
DE59810263D1 (de) 2004-01-08
EP0921295A3 (fr) 2000-09-27
DE19754306A1 (de) 1999-06-10

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