EP1500813A1 - Method for managing an internal combustion engine - Google Patents

Method for managing an internal combustion engine Download PDF

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Publication number
EP1500813A1
EP1500813A1 EP04291626A EP04291626A EP1500813A1 EP 1500813 A1 EP1500813 A1 EP 1500813A1 EP 04291626 A EP04291626 A EP 04291626A EP 04291626 A EP04291626 A EP 04291626A EP 1500813 A1 EP1500813 A1 EP 1500813A1
Authority
EP
European Patent Office
Prior art keywords
engine
glow plugs
control
cylinders
stopping
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
EP04291626A
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German (de)
French (fr)
Other versions
EP1500813B1 (en
Inventor
Eric Condemine
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1500813A1 publication Critical patent/EP1500813A1/en
Application granted granted Critical
Publication of EP1500813B1 publication Critical patent/EP1500813B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N99/00—Subject matter not provided for in other groups of this subclass
    • F02N99/002—Starting combustion engines by ignition means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • F02P19/021—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs characterised by power delivery controls
    • F02P19/022—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs characterised by power delivery controls using intermittent current supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition

Definitions

  • the invention relates to a method for managing a internal combustion engine for a motor vehicle and more particularly engines with a common rail pressurized fuel.
  • the purpose of the present invention is to mitigate all or disadvantages mentioned above by proposing a process to restart a motor faster internal combustion.
  • the invention is made in the context of the so-called “Stop and go”. This technique allows for continual check the stopping and starting of the combustion engine internal.
  • the engine is stopped when the vehicle comes to rest (or when it is below speed threshold) and is restarted when the driver disengages and that a speed is engaged.
  • the restart can be realized using a conventional starter or alternator reversible.
  • a typical start is made in substantially 1.75 turns of crankshaft. For a restart in "stop and go", it is necessary to be below 1 turn for it is easily accepted by the occupants.
  • crankshaft turn number when one is substantially under 0.7 turn, it is very difficult to achieve self-ignition of the air-fuel mixture in the cylinder when starting because the compression in the cylinder can no longer bring enough energy.
  • the glow plugs will serve according to the invention to compensate for the low compression in cylinders by a contribution of calories. This is done in piloting the glow plugs so as to provide the residual energy required, in addition to that provided by the partial compression of the cylinders, so that the auto-ignition to become true. This helps to speed up reboot as this allows to decrease the number of turn of crankshaft needed.
  • the piloting of candles preheating is carried out between stopping and restarting the engine by a "stop and go" system associated with the group power train.
  • This piloting is carried out from the engine temperature that determines the amount of heat to bring into the cylinders.
  • the heat in the cylinders is maintained rather than giving heat just before restart.
  • the glow plugs can be operated so non continuous like for example with a signal of type to crenels which periodically actuates said candles. it is particularly important if the engine stop is extended.
  • the performance of the glow plugs is good obviously dependent on the characteristics of the network of the motor vehicle in which is installed the powertrain. Thus, it will be all the easier to start using the glow plugs that the edge electrical power is strong.
  • the system "stop and start” includes a device identification of the engine phase, preferentially only the candles present in the cylinders in phase of compression at the time of engine shutdown will be piloted. Indeed, it is primarily in these cylinders where the energy must be sufficient.
  • the present invention is not limited to illustrated example but is susceptible of various variants and modifications that will occur to those skilled in the art.
  • the piloting of the glow plugs is realized depending on the compression ratio in the cylinders.
  • the piloting signal of the candles can be different like especially continuous just before restart of the motor.

Abstract

The method involves detecting the control of starting of an internal combustion engine driver. Preheating plugs are actuated if the engine temperature is too low, and the engine is started. The engine is turned off under the control of a temporary stop system. The engine is restarted under the system control, where heat is generated in engine cylinders when the engine is turned off, to facilitate the spontaneous combustion.

Description

L'invention se rapporte à un procédé de gestion d'un moteur à combustion interne pour véhicule automobile et plus particulièrement les moteurs dotés d'une rampe commune de carburant sous pression.The invention relates to a method for managing a internal combustion engine for a motor vehicle and more particularly engines with a common rail pressurized fuel.

L'avènement de la technique dite « arrêt et départ » (en anglais « stop and start ») permet d'arrêter le moteur lorsque le véhicule automobile est immobilisé. Cet arrêt du moteur permet d'économiser du carburant ; Cela d'autant plus si le véhicule automobile est sujet à beaucoup rouler en ville ou à rencontrer des bouchons. Cependant, si l'arrêt du moteur est plutôt facile à réaliser, le redémarrage du moteur l'est en revanche beaucoup moins. En effet, il faut qu'il redémarre suffisamment vite sinon cette technique « arrêt et départ » devient très vite fatigante nerveusement pour les occupants du véhicule automobile.The advent of the so-called "stop and go" technique (in English "stop and start") stops the engine when the motor vehicle is immobilized. This engine stop saves fuel This all the more so if the motor vehicle is subject to a lot of driving in the city or meet plugs. However, if the engine stop is rather easy to achieve, the engine restart is in much less revenge. Indeed, it must restart fast enough if not this technique "stop and go" quickly becomes fatiguing nervously for the occupants of the motor vehicle.

Le but de la présente invention est de pallier tout ou partie les inconvénients cités précédemment en proposant un procédé permettant de redémarrer plus rapidement un moteur à combustion interne.The purpose of the present invention is to mitigate all or disadvantages mentioned above by proposing a process to restart a motor faster internal combustion.

A cet effet, l'invention se rapporte à un procédé de gestion de moteur à combustion interne comprenant un système d'arrêt temporaire du moteur comportant les étapes consistant à :

  • détecter la commande de démarrage du conducteur ;
  • actionner les bougies de préchauffage si la température du moteur est trop basse ;
  • démarrer le moteur ;
  • arrêter le moteur sous la commande dudit système d'arrêt temporaire ;
  • redémarrer le moteur sous la commande dudit système d'arrêt temporaire ;
caractérisé en ce qu'il comporte, de plus lorsque le moteur est arrêté sous la commande dudit système d'arrêt, l'étape consistant à apporter des calories dans les cylindres du moteur pour faciliter l'auto-inflammation et donc permettre un redémarrage plus rapide.To this end, the invention relates to an internal combustion engine management method comprising a temporary engine shutdown system comprising the steps of:
  • detect the start command of the driver;
  • activate the glow plugs if the engine temperature is too low;
  • start the engine;
  • stopping the engine under the control of said temporary stopping system;
  • restarting the engine under the control of said temporary stopping system;
characterized in that it further comprises, when the engine is stopped under the control of said stopping system, the step of supplying calories in the engine cylinders to facilitate self-ignition and thus allow a restart more fast.

Conformément à d'autres caractéristiques avantageuses de l'invention :

  • l'apport de calories dans les cylindres est réalisé par l'actionnement des bougies de préchauffage ;
  • l'actionnement des bougies de préchauffage est effectué seulement dans les cylindres du moteur en phase de compression lors de l'arrêt du moteur sous la commande dudit système d'arrêt pour optimiser le raccourcissement dudit redémarrage.
  • l'actionnement des bougies de préchauffage est réalisé de façon non continue pour économiser l'énergie nécessaire.
  • le signal d'actionnement des bougies de préchauffage sont du type en créneaux.
According to other advantageous features of the invention:
  • the supply of calories in the cylinders is achieved by the actuation of the glow plugs;
  • the activation of the glow plugs is performed only in the cylinders of the engine during the compression phase when stopping the engine under the control of said stop system to optimize the shortening of said restart.
  • the activation of the glow plugs is performed non-continuously to save the necessary energy.
  • the activation signal of the glow plugs are of the crenellated type.

L'invention est faite dans le cadre de la technique dite « arrêt et départ ». Cette technique permet continuellement de contrôler l'arrêt et le démarrage du moteur à combustion interne. Préférentiellement, le moteur est arrêté quand le véhicule s'immobilise (ou lorsqu'il est en dessous d'une vitesse seuil) et est redémarré quand le conducteur débraye et qu'une vitesse est engagée. Le redémarrage peut être réalisé à l'aide d'un démarreur classique ou d'un alternateur réversible. Cependant, un démarrage classique s'effectue en sensiblement 1,75 tours de vilebrequin. Pour un redémarrage en « arrêt et départ », il faut être en dessous de 1 tour pour qu'il soit facilement accepté par les occupants.The invention is made in the context of the so-called "Stop and go". This technique allows for continual check the stopping and starting of the combustion engine internal. Preferably, the engine is stopped when the vehicle comes to rest (or when it is below speed threshold) and is restarted when the driver disengages and that a speed is engaged. The restart can be realized using a conventional starter or alternator reversible. However, a typical start is made in substantially 1.75 turns of crankshaft. For a restart in "stop and go", it is necessary to be below 1 turn for it is easily accepted by the occupants.

Cependant en dessous d'un nombre de tour du vilebrequin (quand on est sensiblement sous 0,7 tour), il est très difficile de réaliser l'auto-inflammation du mélange air-carburant dans le cylindre lors du démarrage car la compression dans le cylindre peut ne plus apporter suffisamment d'énergie.However below a crankshaft turn number (when one is substantially under 0.7 turn), it is very difficult to achieve self-ignition of the air-fuel mixture in the cylinder when starting because the compression in the cylinder can no longer bring enough energy.

Ainsi les bougies de préchauffage, habituellement utilisées lors du démarrage par temps froid, vont servir selon l'invention à compenser la faible compression dans les cylindres par un apport de calories. Cela est réalisé en pilotant les bougies de préchauffage de manière à fournir l'énergie résiduelle nécessaire, en plus de celle fournie par la compression partielle des cylindres, pour que l'auto-inflammation se réalise. Cela permet de gagner en rapidité de redémarrage car cela permet de diminuer le nombre de tour de vilebrequin nécessaire.So the glow plugs, usually used when starting in cold weather, will serve according to the invention to compensate for the low compression in cylinders by a contribution of calories. This is done in piloting the glow plugs so as to provide the residual energy required, in addition to that provided by the partial compression of the cylinders, so that the auto-ignition to become true. This helps to speed up reboot as this allows to decrease the number of turn of crankshaft needed.

Préférentiellement, le pilotage des bougies de préchauffage est réalisé entre l'arrêt et le redémarrage du moteur par un système « arrêt et départ » associé au groupe moto-propulseur. Ce pilotage est réalisé à partir de la température du moteur qui permet de déterminer la quantité de chaleur à apporter dans les cylindres.Preferably, the piloting of candles preheating is carried out between stopping and restarting the engine by a "stop and go" system associated with the group power train. This piloting is carried out from the engine temperature that determines the amount of heat to bring into the cylinders.

De manière préférée, la chaleur dans les cylindres est maintenue plutôt que de donner de la chaleur juste avant le redémarrage. Pour économiser le courant à bord du véhicule, les bougies de préchauffage peuvent être actionnées de façon non continue comme par exemple avec un signal du type à créneaux qui périodiquement actionne lesdites bougies. Cela est particulièrement important si l'arrêt du moteur est prolongé. Enfin, il peut être envisagé de maintenir une température plus faible que la température optimale d'auto-inflammation puis lorsque le redémarrage est engagé de fournir un courant de plus forte intensité.Preferably, the heat in the cylinders is maintained rather than giving heat just before restart. To save power in the vehicle, the glow plugs can be operated so non continuous like for example with a signal of type to crenels which periodically actuates said candles. it is particularly important if the engine stop is extended. Finally, it may be envisaged to maintain a lower temperature than optimal autoignition temperature then when the reboot is engaged from provide a current of higher intensity.

La performance des bougies de préchauffage est bien évidemment dépendante des caractéristiques du réseau électrique du véhicule automobile dans lequel est installé le groupe moto-propulseur. Ainsi, il sera d'autant plus facile de démarrer à l'aide des bougies de préchauffage que la puissance électrique de bord est forte.The performance of the glow plugs is good obviously dependent on the characteristics of the network of the motor vehicle in which is installed the powertrain. Thus, it will be all the easier to start using the glow plugs that the edge electrical power is strong.

Si le système « arrêt et départ » comporte un dispositif d'identification de la phase du moteur, préférentiellement seules les bougies présentes dans les cylindres en phase de compression au moment de l'arrêt du moteur seront pilotées. En effet, ce sont prioritairement dans ces cylindres où l'énergie doit être suffisante.If the system "stop and start" includes a device identification of the engine phase, preferentially only the candles present in the cylinders in phase of compression at the time of engine shutdown will be piloted. Indeed, it is primarily in these cylinders where the energy must be sufficient.

Bien entendu, la présente invention ne se limite pas à l'exemple illustré mais est susceptible de diverses variantes et modifications qui apparaítront à l'homme de l'art. En particulier, le pilotage des bougies de préchauffage est réalisé en fonction du taux de compression dans les cylindres. Egalement, le signal de pilotage des bougies peut être différent comme notamment continu juste avant le redémarrage du moteur.Of course, the present invention is not limited to illustrated example but is susceptible of various variants and modifications that will occur to those skilled in the art. In In particular, the piloting of the glow plugs is realized depending on the compression ratio in the cylinders. Also, the piloting signal of the candles can be different like especially continuous just before restart of the motor.

Claims (5)

Procédé de gestion de moteur à combustion interne comprenant un système d'arrêt temporaire du moteur comportant les étapes consistant à : détecter la commande de démarrage du conducteur ; actionner les bougies de préchauffage si la température du moteur est trop basse ; démarrer le moteur ; arrêter le moteur sous la commande dudit système d'arrêt temporaire ; redémarrer le moteur sous la commande dudit système d'arrêt temporaire ; caractérisé en ce qu'il comporte, de plus lorsque le moteur est arrêté sous la commande dudit système d'arrêt, l'étape consistant à apporter des calories dans les cylindres du moteur pour faciliter l'auto-inflammation et donc permettre un redémarrage plus rapide.An internal combustion engine management method comprising a temporary engine shutdown system comprising the steps of: detect the start command of the driver; activate the glow plugs if the engine temperature is too low; start the engine; stopping the engine under the control of said temporary stopping system; restarting the engine under the control of said temporary stopping system; characterized in that it furthermore comprises, when the engine is stopped under the control of said stopping system, the step of supplying calories in the engine cylinders to facilitate self-ignition and thus to allow a restart more fast. Procédé selon la revendication 1, caractérisé en ce que l'apport de calories dans les cylindres est réalisé par l'actionnement des bougies de préchauffage.Process according to claim 1, characterized in that the supply of calories in the cylinders is achieved by the operation of the glow plugs. Procédé selon la revendication 2, caractérisé en ce que l'actionnement des bougies de préchauffage est effectué seulement dans les cylindres du moteur en phase de compression lors de l'arrêt du moteur sous la commande dudit système d'arrêt pour optimiser le raccourcissement dudit redémarrage.A method according to claim 2, characterized in that the activation of the glow plugs is performed only in the cylinders of the engine in the compression phase when stopping the engine under the control of said stop system to optimize the shortening of said restart . Procédé selon la revendication 2 ou 3, caractérisé en ce que l'actionnement des bougies de préchauffage est réalisé de façon non continue pour économiser l'énergie nécessaire.Method according to claim 2 or 3, characterized in that the activation of the glow plugs is performed non-continuously to save the necessary energy. Procédé selon la revendication 4, caractérisé en ce que le signal d'actionnement des bougies de préchauffage sont du type en créneaux.Process according to Claim 4, characterized in that the activation signal of the glow plugs is of the crenellated type.
EP04291626A 2003-07-24 2004-06-28 Method for managing an internal combustion engine Active EP1500813B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309027A FR2858026B1 (en) 2003-07-24 2003-07-24 METHOD FOR MANAGING INTERNAL COMBUSTION ENGINE
FR0309027 2003-07-24

Publications (2)

Publication Number Publication Date
EP1500813A1 true EP1500813A1 (en) 2005-01-26
EP1500813B1 EP1500813B1 (en) 2007-01-03

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EP04291626A Active EP1500813B1 (en) 2003-07-24 2004-06-28 Method for managing an internal combustion engine

Country Status (5)

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EP (1) EP1500813B1 (en)
AT (1) ATE350576T1 (en)
DE (1) DE602004004005T2 (en)
ES (1) ES2279309T3 (en)
FR (1) FR2858026B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012105173A1 (en) * 2011-02-04 2012-08-09 Toyota Jidosha Kabushiki Kaisha Glow plug controller for internal combustion engine
US20130152894A1 (en) * 2011-12-14 2013-06-20 Ford Global Technologies, Llc Stop/start engine glow plug heater control

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB438769A (en) * 1934-03-19 1935-11-22 Bosch Robert Improvements in or relating to the starting of injection internal combustion engines
GB2031066A (en) * 1978-09-14 1980-04-16 Maschf Augsburg Nuernberg Ag A compression ignition internal combustion engine having a cold-start system
US4487169A (en) * 1982-04-03 1984-12-11 Khd-Canada, Inc. Electronic control unit for internal combustion engines
US4862846A (en) * 1987-03-23 1989-09-05 J. Eberspaecher Cooling water heater for internal combustion engines
EP1173674A1 (en) * 2000-02-22 2002-01-23 Robert Bosch Gmbh Drive train for a motor vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6098585A (en) * 1997-08-11 2000-08-08 Ford Global Technologies, Inc. Multi-cylinder four stroke direct injection spark ignition engine
DE10306145A1 (en) * 2003-02-14 2004-08-26 Robert Bosch Gmbh Direct start method for an internal combustion engine (ICE) injects fuel directly into the ICE's combustion chambers filled with air

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB438769A (en) * 1934-03-19 1935-11-22 Bosch Robert Improvements in or relating to the starting of injection internal combustion engines
GB2031066A (en) * 1978-09-14 1980-04-16 Maschf Augsburg Nuernberg Ag A compression ignition internal combustion engine having a cold-start system
US4487169A (en) * 1982-04-03 1984-12-11 Khd-Canada, Inc. Electronic control unit for internal combustion engines
US4862846A (en) * 1987-03-23 1989-09-05 J. Eberspaecher Cooling water heater for internal combustion engines
EP1173674A1 (en) * 2000-02-22 2002-01-23 Robert Bosch Gmbh Drive train for a motor vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012105173A1 (en) * 2011-02-04 2012-08-09 Toyota Jidosha Kabushiki Kaisha Glow plug controller for internal combustion engine
EP2902618A1 (en) * 2011-02-04 2015-08-05 Toyota Jidosha Kabushiki Kaisha Glow plug controller for internal combustion engine
US20130152894A1 (en) * 2011-12-14 2013-06-20 Ford Global Technologies, Llc Stop/start engine glow plug heater control

Also Published As

Publication number Publication date
ES2279309T3 (en) 2007-08-16
ATE350576T1 (en) 2007-01-15
FR2858026B1 (en) 2006-01-13
DE602004004005T2 (en) 2007-07-05
EP1500813B1 (en) 2007-01-03
DE602004004005D1 (en) 2007-02-15
FR2858026A1 (en) 2005-01-28

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