EP0257264B1 - Dispositif avec pompe d'injection - Google Patents

Dispositif avec pompe d'injection Download PDF

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Publication number
EP0257264B1
EP0257264B1 EP87110056A EP87110056A EP0257264B1 EP 0257264 B1 EP0257264 B1 EP 0257264B1 EP 87110056 A EP87110056 A EP 87110056A EP 87110056 A EP87110056 A EP 87110056A EP 0257264 B1 EP0257264 B1 EP 0257264B1
Authority
EP
European Patent Office
Prior art keywords
control device
digital control
shut
diesel engine
digital
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
EP87110056A
Other languages
German (de)
English (en)
Other versions
EP0257264A2 (fr
EP0257264A3 (en
Inventor
Manfred Pfalzgraf
Kurt Probst
Andreas Wokan
Bernhard Stoll
Heinz-Friedrich Ohm
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO 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 Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0257264A2 publication Critical patent/EP0257264A2/fr
Publication of EP0257264A3 publication Critical patent/EP0257264A3/de
Application granted granted Critical
Publication of EP0257264B1 publication Critical patent/EP0257264B1/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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/107—Safety-related aspects
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02D2041/224—Diagnosis of the fuel system
    • F02D2041/226—Fail safe control for fuel injection pump

Definitions

  • the invention relates to an arrangement for a diesel engine, the injection pump has a power control element and a shutdown element, both of which can be controlled by a common digital control device, according to the preamble of the main claim.
  • an emergency stop function is in place.
  • a shut-off element also located on the injection pump is actuated.
  • the object of the present invention is to make it possible, in the event of a defect in the area of the control of the power control element of an injection pump, to keep the engine running at an uncritical speed.
  • the engine speed is automatically reduced to a non-critical value in the event of a defect in the system formed by the digital control device and the power control element.
  • a further development of the invention is that the digital control device and the shut-off element form a two-point controller. This makes it possible in a simple manner to maintain the specified speed value with the required accuracy.
  • a linear actuating behavior can also be achieved by using a suitable actuator and at a suitable clock frequency.
  • the shut-off element can be designed so sluggishly in connection with an assigned actuator that the speed results from the mean value of the pulses if the clock frequency is sufficiently high.
  • the arrangement according to the invention can also be expanded such that the pulsating control of the shut-off element can be triggered when the permissible operating conditions are exceeded.
  • the engine power can be limited, e.g. B. on the maximum speed of the vehicle or maximum engine speed.
  • a further development consists in that a device for linking a signal emitted by the digital control device with another signal provided for switching off the diesel engine is arranged between an output of the digital control device provided for the switch-off element and the switch-off element. This means that the engine can be switched off at any time independently of the digital control device.
  • the invention allows numerous embodiments. One of them is shown schematically in the drawing and described below.
  • a digital control device 1 is connected to an actuator 2, which can consist in a manner known per se of an electric motor with a downstream transmission.
  • the actuator 2 is connected to the power control element 4 of an injection pump 5 of a diesel engine, not shown, via a linkage 3.
  • a setpoint value for the engine power is supplied to the digital control device by an accelerator pedal 6. Furthermore, the digital control device is connected to sensors 7, 8 for the speed n and the speed v.
  • the arrangement according to the invention can also be used to limit the engine speed or speed.
  • a correspondingly modified or supplemented program is to be provided in the digital control device, so that the shut-off mechanism 10 is actuated not only in the event of a defect, but also in the normal operating case when the permissible operating conditions, for example the permissible speed, are exceeded.

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)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Claims (6)

1. Dispositif (1) de commande numérique pour moteur Diesel, comportant un élément (4) de réglage du débit et un élément (10) d'arrêt d'une pompe d'injection (5), dispositif caractérisé en ce que le dispositif (1) de commande comporte un premier agencement, qui commande par impulsions l'élément d'arrêt (10) de façon à donner au moteur une vitesse de rotation pouvant être prédéterminée, et un second agencement, qui réagit à une défaillance dans le circuit de commande de l'élément (4) de réglage du débit en déclenchant l'émission d'impulsions de commande par le premier agencement.
2. Agencement selon la revendication 1, caractérisé en ce que le dispositif (1) de commande numérique et l'élément (10) d'arrêt forment un régulateur à deux positions (par tout ou rien).
3. Agencement selon la revendication 1, caractérisé en ce que la courbe de réglage est rectiligne, grâce à l'utilisation d'un élément de réglage approprié et d'une fréquence élémentaire appropriée.
4. Dispositif de commande numérique selon l'une des revendications 1 à 3, caractérisé en ce que le dépassement de conditions de fonctionnement admissibles peut déclencher la commande pulsatoire de l'élément (10) d'arrêt.
5. Dispositif de commande numérique selon l'une des revendications précédentes, caractérisé en ce qu'un dispositif (11), destiné à combiner le signal délivré par ce dispositif numérique (1) avec un autre signal destiné à arrêter le moteur Diesel, est connecté entre une sortie dudit dispositif numérique menant à l'élément d'arrêt (10), et ce dernier élément (10).
6. Dispositif de commande numérique selon l'une des revendications précédentes, caractérisé en ce que diverses vitesses prédéterminées de rotation, auxquelles le moteur Diesel est réglé en fonction de la nature de l'incident ou en fonction d'autres paramètres, sont mises en mémoire dans ce dispositif (1) de commande numérique.
EP87110056A 1986-08-28 1987-07-11 Dispositif avec pompe d'injection Expired - Lifetime EP0257264B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3629265 1986-08-28
DE19863629265 DE3629265A1 (de) 1986-08-28 1986-08-28 Anordnung mit einer einspritzpumpe

Publications (3)

Publication Number Publication Date
EP0257264A2 EP0257264A2 (fr) 1988-03-02
EP0257264A3 EP0257264A3 (en) 1988-05-04
EP0257264B1 true EP0257264B1 (fr) 1990-11-28

Family

ID=6308370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87110056A Expired - Lifetime EP0257264B1 (fr) 1986-08-28 1987-07-11 Dispositif avec pompe d'injection

Country Status (5)

Country Link
US (1) US4823751A (fr)
EP (1) EP0257264B1 (fr)
JP (1) JPS63113156A (fr)
BR (1) BR8704422A (fr)
DE (2) DE3629265A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3844286C2 (de) * 1988-12-30 2002-03-07 Bosch Gmbh Robert Sicherheits-Notlaufverfahren und Sicherheits-Notlaufvorrichtung für Diesel-Brennkraftmaschinen
JP2784608B2 (ja) * 1990-09-28 1998-08-06 日立建機株式会社 原動機の回転数制御装置
DE4133558A1 (de) * 1991-10-10 1993-04-15 Bosch Gmbh Robert Steuersystem fuer die elektrische kraftstoffpumpe einer brennkraftmaschine
DE4207319C2 (de) * 1992-03-08 1994-06-16 Elsons Produktions Und Handels Stellglied zur geschwindigkeitsbegrenzenden Regelung eines Kraftfahrzeuges
JP3564148B2 (ja) * 1992-05-08 2004-09-08 株式会社ボッシュオートモーティブシステム 内燃機関の燃料噴射制御システム
US5370097A (en) * 1993-03-22 1994-12-06 Davis Family Trust Combined diesel and natural gas engine fuel control system and method of using such
JP2589461Y2 (ja) * 1993-12-16 1999-01-27 新キャタピラー三菱株式会社 エンジンの制御装置
EP3592966B1 (fr) * 2017-03-06 2021-06-09 HELLA GmbH & Co. KGaA Système de pompe de purge doté d'arrêt d'urgence

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH518443A (de) * 1969-12-13 1972-01-31 Bosch Gmbh Robert Sicherheitsschaltung an einer elektronisch geregelten Dieselbrennkraftmaschine
US3916854A (en) * 1972-06-26 1975-11-04 Barton R E Fuel-flow limiting apparatus
US3915130A (en) * 1973-08-28 1975-10-28 Nippon Denso Co Electric control circuit system for internal combustion engines
CA1088650A (fr) * 1977-02-15 1980-10-28 Ralph I. Mason Regulateur numerique electronique
US4150654A (en) * 1977-08-11 1979-04-24 Caterpillar Tractor Co Engine and fuel shutdown control
JPS57193729A (en) * 1981-05-25 1982-11-29 Nissan Motor Co Ltd Fuel shutoff device of fuel injection pump
DE3130094A1 (de) * 1981-07-30 1983-02-17 Robert Bosch Gmbh, 7000 Stuttgart Notsteuersystem fuer eine diesel-brennkraftmaschine
JPS5951133A (ja) * 1982-09-16 1984-03-24 Diesel Kiki Co Ltd 電子式調速装置
JPS60206954A (ja) * 1984-03-30 1985-10-18 Hino Motors Ltd デイ−ゼル機関の異常時緊急停止装置
DE3429672A1 (de) * 1984-08-11 1986-02-20 Robert Bosch Gmbh, 7000 Stuttgart Drehzahlregelsystem fuer brennkraftmaschinen
DE3603571A1 (de) * 1986-02-06 1987-08-13 Bosch Gmbh Robert Notfahreinrichtung fuer eine dieselbrennkraftmaschine mit elektronisch geregelter kraftstoffzumessung

Also Published As

Publication number Publication date
JPS63113156A (ja) 1988-05-18
BR8704422A (pt) 1988-04-19
DE3629265A1 (de) 1988-03-10
EP0257264A2 (fr) 1988-03-02
EP0257264A3 (en) 1988-05-04
US4823751A (en) 1989-04-25
DE3766446D1 (de) 1991-01-10

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