EP2496825B1 - Starting control device and method for a combustion engine - Google Patents

Starting control device and method for a combustion engine Download PDF

Info

Publication number
EP2496825B1
EP2496825B1 EP10785486.1A EP10785486A EP2496825B1 EP 2496825 B1 EP2496825 B1 EP 2496825B1 EP 10785486 A EP10785486 A EP 10785486A EP 2496825 B1 EP2496825 B1 EP 2496825B1
Authority
EP
European Patent Office
Prior art keywords
engine
starting
instantaneous
internal combustion
combustion 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.)
Active
Application number
EP10785486.1A
Other languages
German (de)
French (fr)
Other versions
EP2496825A2 (en
Inventor
Fabrice Grisi
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
PSA 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 PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP2496825A2 publication Critical patent/EP2496825A2/en
Application granted granted Critical
Publication of EP2496825B1 publication Critical patent/EP2496825B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0848—Circuits or control means specially adapted for starting of engines with means for detecting successful engine start, e.g. to stop starter actuation
    • 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
    • F02D2200/1012—Engine speed gradient
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F02N2200/022—Engine speed

Definitions

  • the present invention relates to the starting of internal combustion engines.
  • the object of the invention is to overcome the drawback of the state of the prior art by proposing a new method making it possible to reduce the energy consumption spent during the start-up operation and to reduce the stress on the electrical machine used for the operation. start of the internal combustion engine.
  • the invention therefore relates to a method of starting an internal combustion engine according to which the internal combustion engine is started to rotate with the aid of an electric machine, the drive is maintained to bring the said motor into a autonomous motor rotation state, characterized in that the training of the engine when the instantaneous engine speed exceeds a determined speed threshold and the instantaneous acceleration of said engine speed is greater than a predetermined acceleration threshold.
  • the crossing of the two conditions makes the detection of combustion more reliable.
  • the invention may include one or more of the following features:
  • the speed threshold is determined as a function of a period of driving of the motor by the electric machine from a predetermined reference curve.
  • the driving time has the time origin a start order of the internal combustion engine, so as to wedge the reference curve with respect to this start order.
  • the reference curve is an envelope curve of the instantaneous engine speed obtained for at least one start without combustion. This makes it possible to simply determine the speed threshold according to the training time.
  • the instantaneous acceleration threshold is between 10,000 and 20000 rpm / sec and preferably between 15000 and 20000 rpm / sec.
  • the invention also relates to a control apparatus for controlling a starting operation of an internal combustion engine by the implementation of a method according to the invention.
  • the figure 1 illustrates in the form of a diagram the temporal variation of the instantaneous engine speed N when starting an internal combustion engine.
  • the invention is advantageously applied in the context of a restart of an internal combustion engine of motor vehicles equipped with an automatic on / off using an electric machine such as a starter. But it is also possible to use the invention for a first start.
  • the internal combustion engine comprises a crankshaft driven by an electric machine to drive the engine.
  • Transmission of the forces of the electric machine to the crankshaft is preferably by a ring gear integral with the crankshaft and the starter engages in this ring.
  • a speed sensor Next to the ring gear is positioned a speed sensor which thus provides information on the rotational speed or engine speed to an engine control member.
  • the electric machine has exclusively or function for particular purpose to start the internal combustion engine so that it can operate autonomously.
  • Such systems are sufficiently known to those skilled in the art according to the state of the art not to require a detailed description.
  • the reference 1 therefore designates a variation curve of the instantaneous engine speed N as a function of the driving time t
  • the reference 2 denotes a reference curve or gauge defining a speed threshold S n determined as a function of the duration of drive t
  • reference numeral 3 designates a counter Cc to record the total number of combustion detected.
  • the jig 2 is an envelope curve of the instantaneous engine speed N obtained for at least one start without combustion.
  • envelope curve we mean a smoothed curve indicating the limit within which all or most of the instantaneous engine speeds N are measured during at least one drive by the electric machine, without combustion.
  • This reference curve 2 can be determined in advance by engine bench tests and stored in a control device such as an electronic control unit also called ECU, said ECU being able to control a start operation by setting implementation of the method of the invention.
  • the instant t 0 corresponds to the time origin of the driving time t of the motor by the electric machine.
  • the time origin t 0 of the driving time t corresponds to a starting order of the internal combustion engine.
  • the complete combustion counter C c is initialized to 0.
  • the template 2 is calibrated so as to have time origin time t 0 .
  • the instantaneous engine speed N exceeds a threshold S n fixed by the jig 2, however the instantaneous acceleration A i , in other words the derivative of the instantaneous engine speed N, not shown in this example illustrated in FIG. figure 1 , is less than a predetermined acceleration threshold S a .
  • stopping the starter drive for example by cutting off its power supply from the first detected combustion, that is to say when the complete combustion counter Cc is equal to one.
  • the complete combustion counter Cc is equal to one.
  • the training time of the starter of the combustion engine is optimized by cutting off its drive at the earliest, that is to say in our example as soon as the first complete combustion is detected, either for a counter value Cc equal to at 1
  • the figures 2 and 3 show another example with two successive starts, a first start D em1 without combustion and a second start D em2 with combustion, so successful.
  • the curve 2 designates the non-combustion speed gauge and the curve 1' designates the instantaneous engine speed.
  • curve 4 has the instantaneous acceleration A i corresponding.
  • the dashed circle zone 5 it is noted that, during the first combustions, the kinetic energy stored by the engine being low, the amplitude of the instantaneous acceleration A i is large and an order of magnitude higher. at 10000 rpm / second.
  • the detection of the first combustion according to the method of the invention is made more reliable and the development is facilitated. Indeed, the detection threshold of instantaneous acceleration of the engine speed no longer needs to distinguish a real combustion of a simple detent and the template does not need to be determined with great precision, because if the regime instant engine is higher, it will be with low dynamics, so the condition on the instantaneous acceleration will not be met.
  • the method of the invention has the advantage of soliciting the electric starting machine as little as possible thus to preserve its life, and to reduce noise.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Hybrid Electric Vehicles (AREA)

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention revendique la priorité de la demande française 0957788 déposée le 04 Novembre 2009 dont le contenu (texte, dessins et revendications) est ici incorporé par référence.The present invention claims the priority of the French application 0957788 filed on November 04, 2009 whose content (text, drawings and claims) is hereby incorporated by reference.

La présente invention concerne le démarrage des moteurs à combustion interne.The present invention relates to the starting of internal combustion engines.

Arrière-plan technologiqueTechnological background

Il est connu, selon l'état de la technique, de mettre en mouvement les moteurs à combustion interne à l'aide d'une machine électrique, par exemple à l'aide d'un démarreur jusqu'à ce que les premières combustions se produisent d'elles-mêmes dans le moteur à combustion interne pour être accéléré jusqu'à la vitesse de rotation de ralenti.It is known, according to the state of the art, to set the internal combustion engines in motion using an electric machine, for example using a starter until the first combustions occur. produce themselves in the internal combustion engine to be accelerated to idle speed.

Il est connu par exemple du document US20070245998 d'assister le démarrage jusqu'à ce que le moteur dépasse un seuil prédéterminé de vitesse de rotation, la désactivation du démarreur. Cependant ce type de démarrage a pour inconvénient de commander la désactivation du démarreur à un moment où les premières combustions se produisent déjà et entraine le démarreur. Le démarreur est donc activé plus que nécessaire, ce qui augmente ses sollicitations mécaniques et réduit sa durée de vie d'une part et dépense de l'énergie électrique inutilement d'autre part.It is known for example from the document US20070245998 to assist start up until the motor exceeds a predetermined threshold of rotational speed, disabling the starter. However, this type of start has the disadvantage of controlling the deactivation of the starter at a time when the first combustions already occur and drives the starter. The starter is therefore activated more than necessary, which increases its mechanical stresses and reduces its life on the one hand and spends unnecessary power on the other hand.

Les documents US2006/0011394 , US2002/0068998 , JP2008/297995 , JP2006/63867 et JP2009/216065 divulguent d'autres procédés de démarrage dont on détecte un démarrage d'un moteur à combustion interne. Le problème est encore plus crucial pour les moteurs de véhicules automobiles équipés d'un automatisme marche/arrêt utilisant un démarreur. En effet le nombre de démarrage au cours de la vie du véhicule est augmenté.The documents US2006 / 0011394 , US2002 / 0068998 , JP2008 / 297995 , JP2006 / 63867 and JP2009 / 216065 disclose other starting methods which are detected a start of an internal combustion engine. The problem is even more crucial for motor vehicle engines equipped with an automatic start / stop using a starter. Indeed the number of starting during the life of the vehicle is increased.

L'invention a pour but de pallier l'inconvénient de l'état de l'art antérieur en proposant un nouveau procédé permettant de réduire la consommation d'énergie dépensée pendant l'opération de démarrage et de moins solliciter la machine électrique utilisée pour le démarrage du moteur à combustion interne.The object of the invention is to overcome the drawback of the state of the prior art by proposing a new method making it possible to reduce the energy consumption spent during the start-up operation and to reduce the stress on the electrical machine used for the operation. start of the internal combustion engine.

L'invention concerne donc un procédé de démarrage d'un moteur à combustion interne selon lequel on commence à entrainer le moteur à combustion interne en rotation à l'aide d'une machine électrique, on maintient l'entrainement pour amener ledit moteur dans un état de rotation moteur autonome, caractérisé en ce que l'on cesse l'entrainement du moteur quand le régime moteur instantané dépasse un seuil de régime déterminé et que l'accélération instantanée dudit régime moteur est supérieure à un seuil d'accélération prédéterminé. Le croisement des deux conditions rend la détection d'une combustion plus fiable.The invention therefore relates to a method of starting an internal combustion engine according to which the internal combustion engine is started to rotate with the aid of an electric machine, the drive is maintained to bring the said motor into a autonomous motor rotation state, characterized in that the training of the engine when the instantaneous engine speed exceeds a determined speed threshold and the instantaneous acceleration of said engine speed is greater than a predetermined acceleration threshold. The crossing of the two conditions makes the detection of combustion more reliable.

Par ailleurs, l'invention peut comporter l'une ou plusieurs des caractéristiques suivantes :
De préférence, le seuil de régime est déterminé en fonction d'une durée d'entrainement du moteur par la machine électrique à partir d'une courbe de référence prédéterminée.In addition, the invention may include one or more of the following features:
Preferably, the speed threshold is determined as a function of a period of driving of the motor by the electric machine from a predetermined reference curve.

Dans une variante, la durée d'entrainement a pour origine temporelle un ordre de démarrage du moteur à combustion interne, de façon à caler la courbe de référence par rapport à cet ordre de démarrage.In a variant, the driving time has the time origin a start order of the internal combustion engine, so as to wedge the reference curve with respect to this start order.

De préférence, la courbe de référence est une courbe enveloppe du régime moteur instantané obtenue pour au moins un démarrage sans combustion. Ce qui permet de déterminer simplement le seuil de régime en fonction de la durée d'entrainement.Preferably, the reference curve is an envelope curve of the instantaneous engine speed obtained for at least one start without combustion. This makes it possible to simply determine the speed threshold according to the training time.

De préférence, le seuil d'accélération instantanée est compris entre 10000 et 20000 tr/min/sec et de préférence entre 15000 et 20000 tr/min/sec.Preferably, the instantaneous acceleration threshold is between 10,000 and 20000 rpm / sec and preferably between 15000 and 20000 rpm / sec.

Par ailleurs, l'invention a aussi pour objet un appareil de commande pour commander une opération de démarrage d'un moteur à combustion interne par la mise en oeuvre d'un procédé selon l'invention.Furthermore, the invention also relates to a control apparatus for controlling a starting operation of an internal combustion engine by the implementation of a method according to the invention.

Brève description des dessinsBrief description of the drawings

D'autres particularités et avantages apparaîtront à la lecture de la description ci-après d'un mode particulier de réalisation, non limitatif de l'invention, faite en référence aux figures dans lesquelles :

  • La figure 1 illustre sous forme de diagramme un démarrage moteur à combustion interne selon le procédé de l'invention.
  • La figure 2 présente un exemple avec deux démarrages successifs, un premier démarrage sans combustion et un second démarrage avec combustion,
  • La figure 3 présente la courbe d'accélération associée à l'exemple illustré en figure 2.
Other features and advantages will appear on reading the following description of a particular embodiment, not limiting of the invention, with reference to the figures in which:
  • The figure 1 illustrates in diagram form an internal combustion engine starting according to the method of the invention.
  • The figure 2 presents an example with two successive starts, a first start without combustion and a second start with combustion,
  • The figure 3 presents the acceleration curve associated with the illustrated example in figure 2 .

Description détailléedetailed description

La figure 1 illustre sous la forme d'un diagramme la variation temporelle du régime moteur instantané N lors d'un démarrage de moteur à combustion interne.The figure 1 illustrates in the form of a diagram the temporal variation of the instantaneous engine speed N when starting an internal combustion engine.

L'invention s'applique avantageusement dans le cadre d'un redémarrage de moteur à combustion interne de véhicules automobiles équipés d'un automatisme marche/arrêt utilisant une machine électrique tel qu'un démarreur. Mais il est également possible d'utiliser l'invention pour un premier démarrage.The invention is advantageously applied in the context of a restart of an internal combustion engine of motor vehicles equipped with an automatic on / off using an electric machine such as a starter. But it is also possible to use the invention for a first start.

Classiquement, le moteur à combustion interne comporte un vilebrequin entrainé par une machine électrique pour entrainer le moteur. La transmission des efforts de la machine électrique au vilebrequin se fait de préférence par une couronne dentée solidaire du vilebrequin et le démarreur engrène dans cette couronne. En regard de la couronne dentée est positionné un capteur de régime qui apporte ainsi une information sur la vitesse de rotation ou régime du moteur à un organe de contrôle moteur.Conventionally, the internal combustion engine comprises a crankshaft driven by an electric machine to drive the engine. Transmission of the forces of the electric machine to the crankshaft is preferably by a ring gear integral with the crankshaft and the starter engages in this ring. Next to the ring gear is positioned a speed sensor which thus provides information on the rotational speed or engine speed to an engine control member.

La machine électrique a exclusivement pour fonction ou notamment pour fonction de démarrer le moteur à combustion interne pour que celui-ci puisse fonctionner de manière autonome. De tels systèmes sont suffisamment connus de l'homme du métier selon l'état de la technique pour ne pas nécessiter une description détaillée.The electric machine has exclusively or function for particular purpose to start the internal combustion engine so that it can operate autonomously. Such systems are sufficiently known to those skilled in the art according to the state of the art not to require a detailed description.

La détection des combustions moteur est gênée par les acyclismes du moteur. En effet, le cycle à quatre temps utilisé dans les moteurs à combustion interne pour véhicules automobile enchaine les phases telles que la phase de compression où le régime moteur instantané N diminue fortement et d'autres telles que des phases de détente où il augmente rapidement. Lors du début du démarrage, l'énergie cinétique emmagasinée par le moteur étant faible, les accélérations ou décélération instantanées sont très importantes.The detection of engine combustions is hampered by motor acyclisms. Indeed, the four-stroke cycle used in internal combustion engines for motor vehicles connects phases such as the compression phase where the instantaneous engine speed N decreases strongly and others such as relaxation phases where it increases rapidly. At the start of the start, the kinetic energy stored by the engine being low, instantaneous acceleration or deceleration are very important.

Sur la figure 1, la référence 1 désigne donc une courbe de variation du régime moteur instantané N en fonction de la durée d'entrainement t, la référence 2 désigne une courbe de référence ou gabarit définissant un seuil de régime Sn déterminé en fonction de la durée d'entrainement t et la référence 3 désigne un compteur Cc pour enregistrer le nombre de combustion complète détectées.On the figure 1 , the reference 1 therefore designates a variation curve of the instantaneous engine speed N as a function of the driving time t, the reference 2 denotes a reference curve or gauge defining a speed threshold S n determined as a function of the duration of drive t and reference numeral 3 designates a counter Cc to record the total number of combustion detected.

De préférence, le gabarit 2 est une courbe enveloppe du régime moteur instantané N obtenue pour au moins un démarrage sans combustion. Par courbe enveloppe, on entend une courbe lissée indiquant la limite à l'intérieur de laquelle se placent la totalité ou la majorité des régimes moteur instantané N mesurés lors d'au moins un entrainement par la machine électrique, sans combustion. Cette courbe de référence 2 peut être déterminée au préalable par des essais sur banc moteur et mis en mémoire dans un appareil de commande tel qu'une unité de commande électronique encore nommée ECU, ledit ECU étant apte à commander une opération de démarrage par la mise en oeuvre du procédé de l'invention.Preferably, the jig 2 is an envelope curve of the instantaneous engine speed N obtained for at least one start without combustion. By envelope curve, we mean a smoothed curve indicating the limit within which all or most of the instantaneous engine speeds N are measured during at least one drive by the electric machine, without combustion. This reference curve 2 can be determined in advance by engine bench tests and stored in a control device such as an electronic control unit also called ECU, said ECU being able to control a start operation by setting implementation of the method of the invention.

Sur la figure 1, l'instant t0, correspond à l'origine temporelle de la durée d'entrainement t du moteur par la machine électrique. De préférence, l'origine temporelle t0 de la durée d'entrainement t correspond à un ordre de démarrage du moteur à combustion interne. A cet instant, le compteur de combustion complète Cc est initialisé à 0. Le gabarit 2 est calé de manière à avoir pour origine temporelle l'instant t0.On the figure 1 the instant t 0 corresponds to the time origin of the driving time t of the motor by the electric machine. Preferably, the time origin t 0 of the driving time t corresponds to a starting order of the internal combustion engine. At this time, the complete combustion counter C c is initialized to 0. The template 2 is calibrated so as to have time origin time t 0 .

A l'instant t1, la machine électrique ou le démarreur commence à entrainer le moteur en rotation et le régime moteur instantané N augmente.At time t 1 , the electric machine or the starter begins to drive the engine in rotation and the instantaneous engine speed N increases.

A l'instant t2, le régime moteur instantané N dépasse un seuil Sn fixé par le gabarit 2, cependant l'accélération instantanée Ai, autrement dit la dérivée du régime moteur instantanée N, non représentée sur cet exemple illustré en figure 1, est inférieure à un seuil d'accélération prédéterminé Sa.At time t 2 , the instantaneous engine speed N exceeds a threshold S n fixed by the jig 2, however the instantaneous acceleration A i , in other words the derivative of the instantaneous engine speed N, not shown in this example illustrated in FIG. figure 1 , is less than a predetermined acceleration threshold S a .

Conformément à l'invention, la seconde condition sur l'accélération instantanée Ai n'étant pas remplie, on considère ne pas être en présence d'une combustion complète, le compteur Cc n'est pas incrémenté et l'entrainement du moteur par le démarreur est maintenu.According to the invention, the second condition on the instantaneous acceleration A i not being fulfilled, it is considered not to be in the presence of a complete combustion, the counter C c is not incremented and the drive of the motor by the starter is maintained.

Il en va de même, à l'instant t3, où, suite à une détente D, le régime instantané N dépasse le seuil Sn prédéterminé par le gabarit 2 sans que l'accélération instantanée Ai soit supérieure au seuil d'accélération instantanée Sa. Ici encore, la seconde condition sur l'accélération instantanée Ai n'étant pas remplie, on considère ne pas être en présence d'une combustion complète, le compteur Cc n'est pas incrémenté et l'entrainement du moteur par le démarreur est maintenu.It is the same at time t 3 , where, following expansion D, the instantaneous speed N exceeds the threshold S n predetermined by the jig 2 without the instantaneous acceleration A i being greater than the acceleration threshold. instant S a . Here again, the second condition on the instantaneous acceleration A i is not fulfilled, it is considered not to be in the presence of a complete combustion, the counter C c is not incremented and the motor drive by the starter is maintained.

A l'instant t4, en revanche les deux conditions sont remplies : le régime instantané N du moteur est supérieur au seuil de régime Sn déterminé par le gabarit 2 et l'accélération instantanée Ai est supérieure au seuil d'accélération Sa prédéterminé. On considère donc être en présence d'une combustion complète et le compteur Cc est incrémenté comme le montre la courbe 3.At the instant t 4 , however, both conditions are fulfilled: the instantaneous speed N of the engine is greater than the speed threshold S n determined by the template 2 and the instantaneous acceleration A i is greater than the acceleration threshold S a predetermined. We therefore consider be in the presence of complete combustion and the counter C c is incremented as shown in curve 3.

De préférence, on cesse l'entrainement du démarreur, en coupant par exemple son alimentation électrique dès la première combustion détectée, c'est-à-dire quand le compteur de combustion complète Cc est égal à un. En effet, on peut décider à ce moment de cesser l'entrainement du démarreur car à partir de cet instant t4 la rotation du moteur à combustion interne est désormais autonome, c'est-à-dire que le régime moteur est entretenu par les combustions. En procédant ainsi, on optimise la durée d'entrainement par le démarreur du moteur à combustion en coupant son entrainement au plus tôt, c'est-à-dire dans notre exemple dès la première combustion complète détectée soit pour une valeur de compteur Cc égale à 1Preferably, stopping the starter drive, for example by cutting off its power supply from the first detected combustion, that is to say when the complete combustion counter Cc is equal to one. Indeed, one can decide at this time to stop the starter drive because from this time t 4 the rotation of the internal combustion engine is now autonomous, that is to say that the engine speed is maintained by the combustions. By doing so, the training time of the starter of the combustion engine is optimized by cutting off its drive at the earliest, that is to say in our example as soon as the first complete combustion is detected, either for a counter value Cc equal to at 1

Les figures 2 et 3 présentent un autre exemple avec deux démarrages successifs, un premier démarrage Dem1 sans combustion et un second démarrage Dem2 avec combustion, donc réussi. Sur la figure 2, la courbe 2' désigne le gabarit de régime sans combustion et la courbe 1' désigne le régime moteur instantané. Sur la figure 3, la courbe 4 présente l'accélération instantanée Ai correspondante. Comme le souligne la zone cerclée en pointillé 5, on note que, lors des premières combustions, l'énergie cinétique emmagasinée par le moteur étant faible, l'amplitude de l'accélération instantanée Ai est importante et d'un ordre de grandeur supérieur à 10000 tr/min/seconde.The figures 2 and 3 show another example with two successive starts, a first start D em1 without combustion and a second start D em2 with combustion, so successful. On the figure 2 , the curve 2 'designates the non-combustion speed gauge and the curve 1' designates the instantaneous engine speed. On the figure 3 curve 4 has the instantaneous acceleration A i corresponding. As emphasized by the dashed circle zone 5, it is noted that, during the first combustions, the kinetic energy stored by the engine being low, the amplitude of the instantaneous acceleration A i is large and an order of magnitude higher. at 10000 rpm / second.

Ainsi, en choisissant avantageusement un seuil d'accélération instantané Sa compris entre 10000 et 20000 tr/min/s et de préférence entre 15000 et 20000 tr/min/s, on peut aisément discriminer les premières combustions.Thus, by advantageously choosing a S instantaneous acceleration threshold of between 10,000 and 20,000 rev / min / sec and preferably between 15,000 and 20,000 rev / min / sec, can be easily discriminate the first combustion.

La détection de la première combustion selon le procédé de l'invention est rendu plus fiable et la mise au point est facilitée. En effet, le seuil de détection d'accélération instantanée du régime moteur n'a plus besoin de distinguer une réelle combustion d'une simple détente et le gabarit n'a pas besoin d'être déterminé avec une grande précision, car si le régime moteur instantané est supérieur, ce sera avec une faible dynamique, donc la condition sur l'accélération instantanée ne sera pas remplie.The detection of the first combustion according to the method of the invention is made more reliable and the development is facilitated. Indeed, the detection threshold of instantaneous acceleration of the engine speed no longer needs to distinguish a real combustion of a simple detent and the template does not need to be determined with great precision, because if the regime instant engine is higher, it will be with low dynamics, so the condition on the instantaneous acceleration will not be met.

Le procédé de l'invention a pour avantage de solliciter la machine électrique de démarrage le moins possible donc de préserver sa durée de vie, et de diminuer les nuisances sonores.The method of the invention has the advantage of soliciting the electric starting machine as little as possible thus to preserve its life, and to reduce noise.

Claims (6)

  1. Method for starting an internal combustion engine according to which the internal combustion engine is set in rotating motion with the aid of an electrical machine, the rotating motion is maintained to bring said engine to a state in which the engine rotates independently, characterized in that driving of the engine is stopped when the instantaneous engine speed (N) exceeds a predetermined speed threshold (Sn) and the instantaneous acceleration (Ai) of said engine speed is greater than a predetermined acceleration threshold (Sa).
  2. Starting method according to Claim 1, characterized in that the speed threshold (Sn) is determined as a function of a driving period (t) of the engine by the electric machine based on a predetermined reference curve (2;2').
  3. Starting method according to Claim 2, characterized in that the driving period (t) has a starting order of the internal combustion engine as its temporal origin (to) .
  4. Starting method according to Claim 2 or Claim 3, characterized in that the reference curve reference curve (2;2') is an envelope curve of the instantaneous engine speed (N) obtained for at least one starting process without combustion.
  5. Starting method according to any one of the preceding claims, 3, characterized in that the instantaneous acceleration threshold (Sa) is between 10,000 and 20,000 rpm/sec and preferably between 15,000 and 20,000 rpm/sec.
  6. Control device for controlling a starting operation for an internal combustion engine by implementing a method according to any one of the preceding claims.
EP10785486.1A 2009-11-04 2010-10-21 Starting control device and method for a combustion engine Active EP2496825B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0957788A FR2952129B1 (en) 2009-11-04 2009-11-04 METHOD FOR STARTING AN INTERNAL COMBUSTION ENGINE AND CONTROL APPARATUS USING THE SAME
PCT/FR2010/052250 WO2011055054A2 (en) 2009-11-04 2010-10-21 Internal combustion engine start method, and control apparatus implementing said method

Publications (2)

Publication Number Publication Date
EP2496825A2 EP2496825A2 (en) 2012-09-12
EP2496825B1 true EP2496825B1 (en) 2018-09-05

Family

ID=42271973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10785486.1A Active EP2496825B1 (en) 2009-11-04 2010-10-21 Starting control device and method for a combustion engine

Country Status (3)

Country Link
EP (1) EP2496825B1 (en)
FR (1) FR2952129B1 (en)
WO (1) WO2011055054A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6610470B2 (en) * 2016-08-30 2019-11-27 株式会社デンソー Engine starter
CN111664035A (en) * 2020-06-22 2020-09-15 潍柴动力股份有限公司 Method and device for controlling starter to exit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006063867A (en) * 2004-08-26 2006-03-09 Honda Motor Co Ltd Start control device of internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR957788A (en) 1950-02-25
US6516253B2 (en) * 2000-12-05 2003-02-04 Ford Global Technologies, Inc. Engine ready detection using crankshaft speed feedback
US7350602B2 (en) * 2004-07-19 2008-04-01 Ford Global Technologies, Llc System and method for engine start detection for hybrid vehicles
JP4121095B2 (en) 2006-04-19 2008-07-16 富士通テン株式会社 Power management device, control system, and control method
JP4907573B2 (en) * 2008-03-12 2012-03-28 富士重工業株式会社 Engine start control device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006063867A (en) * 2004-08-26 2006-03-09 Honda Motor Co Ltd Start control device of internal combustion engine

Also Published As

Publication number Publication date
WO2011055054A2 (en) 2011-05-12
FR2952129B1 (en) 2012-07-13
EP2496825A2 (en) 2012-09-12
WO2011055054A3 (en) 2011-08-11
FR2952129A1 (en) 2011-05-06

Similar Documents

Publication Publication Date Title
FR3040078B1 (en) METHOD FOR STARTING A VEHICLE INTERNAL COMBUSTION ENGINE
FR2839119A1 (en) System for starting and restarting motor vehicle engines, uses two starters under control of engine control computer that cuts engine when the vehicle stops, measuring acceleration of engine to check that the chosen starter is working
EP1800001A1 (en) Method of controlling a reversible electric machine
FR2949628A1 (en) RESTART CONTROL SYSTEM AFTER STOP AT IDLE
FR3065257A1 (en) METHOD FOR PROTECTING A DOUBLE DAMPERWHEEL BY DETECTING THE ROTATING MOTOR OF ITS RESONANCE INPUT
EP2496825B1 (en) Starting control device and method for a combustion engine
FR3006384A1 (en) METHOD AND ARBITRATION DEVICE BETWEEN SEVERAL ORGANS OF (RE) STARTING IN THE ANOMALY (RE) THERMAL ENGINE STARTING
EP2612019B1 (en) Method for protecting a starter having high rotational inertia
FR3060499A1 (en) METHOD FOR MANAGING A TRANSIENT PHASE OF STARTING A THERMAL MOTOR WITH AN ELECTRIC MACHINE
FR3062883B1 (en) SYSTEM AND METHOD FOR ROTOR REPOSITIONING OF THERMAL MOTOR
WO2016124834A1 (en) Method for controlling the automatic stop and restart function of an internal combustion engine
EP3436685B1 (en) Cold weather start strategy with a starter-generator in a vehicle provided with a belt driven by an internal combustion engine
FR2971554A1 (en) METHOD FOR CONTROLLING THE STARTER OF A THERMAL MOTOR EQUIPPED WITH A SYSTEM FOR STOPPING AND AUTOMATICALLY RE-STARTING THE ENGINE
WO2009056269A1 (en) Method of controlling the ignition of a petrol engine
EP3504466A1 (en) Method for detecting a failure of a belt connecting an alternator starter to a heat engine
EP3033254B1 (en) Automotive vehicle comprising electric means for producing a vacuum
EP3318747A1 (en) Method for starting a heat engine of a drive train of a vehicle, in particular a motor vehicle
FR3013915A1 (en) METHOD FOR CONTROLLING AN ELECTRIC MACHINE FOR RE-STARTING A MOTOR VEHICLE
FR3023589A1 (en) METHOD FOR CONTROLLING A TRAPPING OF AN INTERNAL COMBUSTION ENGINE OF A MOVING VEHICLE WHEN CHANGING GEARBOX RATIO
WO2012035221A2 (en) Method for authorising the engagement of a starter with an engine and vehicle comprising a calculator for implementing said method
FR3059721A1 (en) METHOD FOR CONTROLLING AUTONOMOUS RESTART OF A VEHICLE ENGINE
EP2550448B1 (en) Method and device for controlling start-up of a heat engine
FR3050487B1 (en) CONTROL SYSTEM FOR COOPERATIVE STARTING BETWEEN AN ALTERNOMETER AND A MOTOR VEHICLE STARTER
FR3018855A1 (en) MOTOR VEHICLE COMBUSTION ENGINE WITH BELT SLIDING DETECTION
FR3072423A1 (en) METHOD FOR CONTROLLING A VEHICLE HEAT ENGINE

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120423

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PSA AUTOMOBILES SA

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602010053368

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F02N0011000000

Ipc: F02N0011080000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F02N 11/08 20060101AFI20180305BHEP

INTG Intention to grant announced

Effective date: 20180404

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1038111

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602010053368

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 602010053368

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20181029

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180905

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181206

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181205

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181205

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1038111

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190105

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190105

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602010053368

Country of ref document: DE

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20181031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181021

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

26N No opposition filed

Effective date: 20190606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180905

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20101021

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180905

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20220922

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230920

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230920

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602010053368

Country of ref document: DE

Owner name: STELLANTIS AUTO SAS, FR

Free format text: FORMER OWNER: PSA AUTOMOBILES SA, POISSY, FR

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20231021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231021