EP1146221B1 - Alarm and/or control device for diesel engines, especially for automotive vehicles - Google Patents

Alarm and/or control device for diesel engines, especially for automotive vehicles Download PDF

Info

Publication number
EP1146221B1
EP1146221B1 EP01400675A EP01400675A EP1146221B1 EP 1146221 B1 EP1146221 B1 EP 1146221B1 EP 01400675 A EP01400675 A EP 01400675A EP 01400675 A EP01400675 A EP 01400675A EP 1146221 B1 EP1146221 B1 EP 1146221B1
Authority
EP
European Patent Office
Prior art keywords
fuel
level
detection
pressure
regulator
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
EP01400675A
Other languages
German (de)
French (fr)
Other versions
EP1146221A1 (en
Inventor
M. Patrice Le Tallec
M. Christian Laurent
M. Daniel Riou
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 EP1146221A1 publication Critical patent/EP1146221A1/en
Application granted granted Critical
Publication of EP1146221B1 publication Critical patent/EP1146221B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel

Definitions

  • the invention relates to an alarm device and / or control for diesel engine, in particular for a vehicle automobile.
  • a diesel engine is fed with fuel under pressure thanks to a pump supply circuit.
  • the pump fills with air and, after filling the tank, trapped air prevents suction liquid fuel.
  • the invention results from the finding that this driver alert using only the minimum level indicator is insufficient to avoid the defusing incident of the pump, related to the dry failure. Indeed, the driver knowing that he can still ride a comfortable distance - by example of the order of a good hundred kilometers - from the lighting of the minimum level indicator, his vigilance is not not maximum and the relaxation of attention may lead him to roll until emptying the fuel tank.
  • the risk warning of defusing the fuel system pump will only be provided relatively short time (or a relatively short distance weak) before the incident may actually occur, so that this second alert occurs infrequently. Indeed, if the distance remaining was too great after this second alert, the driver would also risk accustomed, which would loosen his vigilance.
  • the risk warning of defusing the feed pump may consist of a light or sound signal. She can also consist of a command to reduce performance the engine, its idle operation, or its complete stop. These various commands can also intervene successively: the engine performance is first diminished, then it is slowed down, and finally stopped before the pump is defused. When we plan a light or sound alert, it can also intervene before or during the automatic decrease performance command of the motor.
  • the invention is not limited to Diesel engine for a motor vehicle. It applies to all the uses of diesel engines since it allows the shutdown automatic or manual engine just before the (or) pump (s) of the supply circuit fills with air.
  • a distance counter traveled and / or fuel consumption from the first level and the alert risk of defusing is triggered when the distance traveled and / or consumption since this first level, reached a determined limit.
  • the error signal (the difference between a real value and a value setpoint) of the filling or pressure regulation exceeds a limit value and / or the control signals of the regulation have instabilities.
  • This last type of detection is preferably used in order to trigger the decrease in performance, the idle or stopping the engine. Indeed, when a signal from measurement or control command begins to deviate from its usual value, this difference indicates the immediate proximity the area at real risk of defusing. In other words, the order means for preventing the defusing of the pump is performed only when the risk is imminent. So with a normally caring and careful driver, this command will occur very rarely, which will attract the more his attention when it occurs.
  • a diesel engine with common rail comprises a conduit in which the fuel arrives under high pressure, solenoid valves connecting this conduit to each of the cylinders, and control means of these solenoid valves allow to provide each of the cylinders with the optimum quantity of fuel at the optimal time and with optimal pressure.
  • the detection means of the second level are put into operation only after detection of the first level.
  • the invention thus relates to a warning device of the proximity of an incident in a diesel vehicle, which is characterized in that the incident being the risk of defusing of at least one fuel supply pump, it comprises a way to detect that the fuel level has gone down below a second level, significantly lower than first minimum level from which an alarm is triggered advising the filling of this tank.
  • a means for reducing the performance of the engine, this means being triggered by the means of detection.
  • a means is provided for imposing an idle speed to the engine when the means of detection indicates the proximity of the incident.
  • the detection means comprises a way to detect the distance traveled from the detection of the first level minimum fuel and a means to compare this distance to a predetermined limit.
  • a means for determining fuel consumption from the detection of the first minimum fuel level and a way to compare that consumption at a predetermined limit.
  • the motor comprises a regulator fuel filling and the detection means comprises a means for monitoring a parameter of the fill regulator.
  • the parameter of the fill regulator is example the error signal, means being provided to compare this error signal to a predetermined limit.
  • the engine comprises a fuel pressure regulator and the detection means includes means for monitoring a parameter of this regulator pressure.
  • the parameter of the pressure regulator is for example the error signal, means being provided for comparing this signal error to a predetermined limit.
  • the parameter of the pressure regulator can be the degree of stability of the pressure or control current of the pressure regulator.
  • the detection means can be a way to monitor the pressure in the common rail.
  • the invention also relates to a warning device of the proximity of a power supply incident to a diesel engine to feed pump, which characterized in that the incident being the risk of defusing at least one feed pump fuel, and the engine having a fill regulator or fuel pressure, it includes a means to detect an abnormal value of a parameter of the regulation.
  • a diesel engine comprises a pump 10 for the fuel supply 14 (FIG. 1) of a high pump pressure 16.
  • the feed pump 10 is, in the example, disposed in a reservoir 12.
  • the pump 10 is disposed in the conduit 18 connecting the reservoir to the pump 16.
  • it is integrated in the high pressure pump 16.
  • the injection pump 16 is intended to put the fuel under a high pressure of the order of 200 to 1500 bar, depending on the operating point of the engine. It feeds a conduit 22 for injecting fuel under pressure into each of the engine cylinders via solenoid valves 24 1 , 24 2 , etc.
  • a computer or central control unit 30 is provided for controlling, on the one hand, a filling regulator 20 upstream of the pump 16, and, on the other hand, a pressure regulator 17 of the injection pump 16 and that the instant of opening of the solenoid valves 24 1 , 24 2 , etc.
  • the calculator 30 also performs the usual functions of a motor vehicle calculator, that is to say that it totals the distance traveled and the consumption and it controls the filling control and / or the control of pressure.
  • the computer 30 receives a signal of measuring a pressure sensor 23 in the common rail 22 and controls the control signals of the filling control and / or pressure regulation 17.
  • the computer 30 performs a command according to the diagram of Figure 2.
  • the alarm function or command is started only from the moment the fuel level 14 drops below a first level which, in the simplest way, is the usual level minimum level alert, ie, for example, about 10% the contents of the tank 12.
  • This step is represented by block 32 on the FIG. 2. From this step 32, the computer 30 determines distance traveled (block 34) and fuel consumption (block 36).
  • the distance traveled is compared with a predetermined limit D r (block 38). If this distance traveled exceeds the limit D r , the engine performance is reduced (block 40).
  • a predetermined limit D r for example, means are provided for reducing the maximum speed and / or limiting the rotational speed of the engine and / or limiting the fuel supply.
  • the fuel consumption is compared to a predetermined limit V r (block 42) and if the consumption exceeds the limit V r , the engine performance is also reduced.
  • the computer 30 monitors (blocks 39 and 43) also the filling regulator 20 and / or pressure 17 and indicates if the regulation presents drifts (blocks 44 and 46). Engine performance is reduced (block 40) when such drifts occur.
  • the error signal is measured, that is to say the difference between the actual value and the desired value (the setpoint). If this difference exceeds a certain limit, this difference is indicative of the approach of the dry failure and therefore of the defusing of the pump 10 or 16.
  • the pressure difference is measured thanks to the pressure sensor 23 in the duct 22.
  • the computer 30 monitors (block 48) also at minus one parameter of the pressure regulator 17 of the pump 16. For example, if the pressure in this regulator 17 can not to reach the set point, ie if the difference between the actual pressure and the set pressure is greater than a predetermined value, this situation also indicates, and in a safe way, the approach of the dry fault, that is to say that the pump 10 or 16 starts sucking air at the same time as fuel. Moreover, in this situation, the regulation instabilities, the error signal undergoing strong oscillations. These instabilities also provide for sure the information that pumps 10 and 16 are about to defuse yourself.
  • a light alarm on the dashboard of the vehicle or an audible alarm that indicates to the driver that he is near the defusing pump 10 or 16.
  • the invention thus consists in alerting (by an alarm or action on the engine) the driver (or, more generally, the user of a diesel engine) the risk of incident when the fuel level drops below a second level, substantially below the minimum level indicated by block 32.
  • This second level can be detected by various means. Direct detection of the second level or totalization consumption (blocks 36 and 42) are not essential for this detection. Indeed, each of the various other parameters such as distance traveled (blocks 34 and 38), the measurement of filling control drifts (blocks 44 and 46), as well as measurements of instabilities or drifts in the regulator of pressure 17 (block 48) are, in themselves, indicators because the level of the tank has dropped below second level.

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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

The alarm/controller detects misfiring of the engines fuel pump (10). It includes a fuel level sensing unit (34) to which detects when the fuel has fallen below a second level less than a first minimum level from which an alarm (32) is triggered to warn that filling is required. The sensing unit computes the distance traveled from detection of the first minimum fuel level another unit (36) compares this distance with a set limit (Dr). The alarm/controller includes a unit (40), triggered by the sensor, which reduces the engines performance and a unit (52) which slows down the engine operating regime when the sensor indicates falling fuel level, by interrupting the fuel supply. The unit (36) determines fuel consumption from detection of the first minimum level and a unit (42) compares this fuel consumption with a set limit (Vf). The engine includes a fuel filling regulator (20) and the sensor includes a unit (39) to monitor an error signal of the regulator by comparing it with a set limit.

Description

L'invention est relative à un dispositif d'alarme et/ou de commande pour moteur Diesel, notamment pour véhicule automobile.The invention relates to an alarm device and / or control for diesel engine, in particular for a vehicle automobile.

Un moteur Diesel est alimenté en carburant sous pression grâce à un circuit d'alimentation à pompe. Lorsque le réservoir est complètement vide, la pompe se remplit d'air et, après remplissage du réservoir, l'air emprisonné empêche l'aspiration du carburant liquide.A diesel engine is fed with fuel under pressure thanks to a pump supply circuit. When the tank is completely empty, the pump fills with air and, after filling the tank, trapped air prevents suction liquid fuel.

Ainsi, quand un véhicule à moteur Diesel tombe en "panne sèche", il faut, après remplissage du réservoir, chasser l'air de la pompe. Cette opération, appelée "réamorçage", nécessite en général une intervention de l'utilisateur ; le plus souvent, il doit actionner une pompe de réamorçage à commande manuelle ou faire intervenir une pompe à commande électrique. Certains conducteurs peuvent aussi avoir tendance à faire appel à un réparateur.So when a diesel engine falls into "dry failure", it is necessary, after filling the tank, to hunt the air of the pump. This operation, called "reboot", requires in general a user intervention; most of the time, it must actuate a control reboot pump manually or operate an electrically operated pump. Some drivers may also have a tendency to appeal to a repairer.

Ce type d'incident étant particulièrement désagréable pour le conducteur, les constructeurs automobiles attirent l'attention des utilisateurs sur le fait qu'ils doivent passer à la pompe le plus tôt possible après que le contenu du réservoir en carburant soit descendu au-dessous d'un niveau minimum qui lui est signalé le plus souvent par l'allumage d'un voyant.This type of incident is particularly unpleasant for the driver, car manufacturers are attracting attention users on the fact that they have to move to the pump as soon as possible after the contents of the tank in fuel has fallen below a minimum level which is indicated most often by the lighting of a light.

L'invention résulte de la constatation que cette alerte du conducteur à l'aide du seul voyant de niveau minimum est insuffisante pour éviter l'incident de désamorçage de la pompe, lié à la panne sèche. En effet, le conducteur sachant qu'il peut encore rouler sur une distance confortable - par exemple de l'ordre d'une bonne centaine de kilomètres - à partir de l'allumage du voyant de niveau minimum, sa vigilance n'est pas maximale et le relâchement de l'attention peut l'amener à rouler jusqu'à vider le réservoir en carburant.The invention results from the finding that this driver alert using only the minimum level indicator is insufficient to avoid the defusing incident of the pump, related to the dry failure. Indeed, the driver knowing that he can still ride a comfortable distance - by example of the order of a good hundred kilometers - from the lighting of the minimum level indicator, his vigilance is not not maximum and the relaxation of attention may lead him to roll until emptying the fuel tank.

Selon l'invention, on prévoit un moyen pour alerter le conducteur du véhicule du risque d'incident quand le niveau du carburant descend au-dessous d'un second niveau, sensiblement inférieur au premier niveau minimum.According to the invention, there is provided a means for alerting the vehicle driver the risk of incident when the level of the fuel drops below a second level, substantially less than the first minimum level.

De préférence, l'alerte de risque de désamorçage de la pompe du circuit d'alimentation en carburant ne sera fournie qu'un temps relativement court (ou une distance relativement faible) avant que l'incident risque de se produire réellement, afin que cette seconde alerte intervienne peu souvent. En effet, si la distance restant à parcourir était trop importante après cette seconde alerte, le conducteur risquerait aussi de s'y accoutumer, ce qui relâcherait sa vigilance.Preferably, the risk warning of defusing the fuel system pump will only be provided relatively short time (or a relatively short distance weak) before the incident may actually occur, so that this second alert occurs infrequently. Indeed, if the distance remaining was too great after this second alert, the driver would also risk accustomed, which would loosen his vigilance.

L'alerte de risque de désamorçage de la pompe d'alimentation peut consister en un signal lumineux ou sonore. Elle peut aussi consister en une commande de diminution des performances du moteur, sa mise en fonctionnement ralenti, ou son arrêt complet. Ces diverses commandes peuvent également intervenir de façon successive : les performances du moteur sont d'abord diminuées, ensuite il est mis au ralenti, et, enfin, arrêté avant que la pompe se désamorce. Quand on prévoit une alerte lumineuse ou sonore, celle-ci peut aussi intervenir avant ou pendant la commande automatique de diminution des performances du moteur. The risk warning of defusing the feed pump may consist of a light or sound signal. She can also consist of a command to reduce performance the engine, its idle operation, or its complete stop. These various commands can also intervene successively: the engine performance is first diminished, then it is slowed down, and finally stopped before the pump is defused. When we plan a light or sound alert, it can also intervene before or during the automatic decrease performance command of the motor.

Il est à noter que l'invention n'est pas limitée à un moteur Diesel pour véhicule automobile. Elle s'applique à toutes les utilisations des moteurs Diesel puisqu'elle permet l'arrêt automatique ou manuel du moteur juste avant que la (ou les) pompe(s) du circuit d'alimentation se remplisse d'air.It should be noted that the invention is not limited to Diesel engine for a motor vehicle. It applies to all the uses of diesel engines since it allows the shutdown automatic or manual engine just before the (or) pump (s) of the supply circuit fills with air.

Pour la détection du second niveau minimum de carburant, dans une réalisation particulièrement simple et peu onéreuse, on prévoit un compteur de distance parcourue et/ou de consommation de carburant à partir du premier niveau et l'alerte de risque de désamorçage est déclenchée quand la distance parcourue et/ou la consommation depuis ce premier niveau, atteint une limite déterminée.For the detection of the second minimum level of fuel, in a particularly simple and inexpensive embodiment, a distance counter traveled and / or fuel consumption from the first level and the alert risk of defusing is triggered when the distance traveled and / or consumption since this first level, reached a determined limit.

Pour la détection du second niveau, dans une autre réalisation, qui peut s'utiliser en combinaison avec la précédente, dans le cas où l'on prévoit une régulation de remplissage et/ou de pression de l'alimentation en carburant, on utilise au moins un signal de mesure ou de commande de cette régulation.For the detection of the second level, in another realization, which can be used in combination with the previous one, in the case where provides a regulation of filling and / or pressure of fuel supply, at least one signal is used. measuring or controlling this regulation.

On a en effet constaté que, dès que la pompe d'alimentation ou de pression commence à se remplir partiellement d'air, le signal d'erreur (l'écart entre une valeur réelle et une valeur de consigne) de la régulation de remplissage ou de pression dépasse une valeur limite et/ou les signaux de commande de la régulation présentent des instabilités.It has been found that as soon as the feed pump or pressure begins to fill up partially with air, the error signal (the difference between a real value and a value setpoint) of the filling or pressure regulation exceeds a limit value and / or the control signals of the regulation have instabilities.

Ce dernier type de détection est, de préférence, utilisé afin de déclencher la diminution des performances, le ralenti ou l'arrêt du moteur. En effet, quand un signal de mesure ou de commande de la régulation commence à s'écarter de sa valeur habituelle, cet écart indique la proximité immédiate de la zone à risque réel de désamorçage. Autrement dit, la commande du moyen permettant d'éviter le désamorçage de la pompe est effectuée seulement lorsque le risque est imminent. Ainsi avec un conducteur normalement attentif et précautionneux, cette commande interviendra très rarement, ce qui attirera d'autant plus son attention lorsqu'elle se produit. This last type of detection is preferably used in order to trigger the decrease in performance, the idle or stopping the engine. Indeed, when a signal from measurement or control command begins to deviate from its usual value, this difference indicates the immediate proximity the area at real risk of defusing. In other words, the order means for preventing the defusing of the pump is performed only when the risk is imminent. So with a normally caring and careful driver, this command will occur very rarely, which will attract the more his attention when it occurs.

Quand le moteur est du type à rampe commune (ou "common rail"), pour la détection du second niveau on fait, de préférence, appel à un signal de mesure de la régulation de remplissage et/ou de pression dans la rampe commune.When the engine is of the common rail type (or "common rail"), for the detection of the second level one makes, of preferably, call to a measurement signal of the filling control and / or pressure in the common rail.

On rappelle qu'un moteur Diesel à rampe commune comporte un conduit dans lequel le carburant arrive sous haute pression, des électrovannes reliant ce conduit à chacun des cylindres, et des moyens de commande de ces électrovannes permettent de fournir à chacun des cylindres la quantité optimale de carburant à l'instant optimal et avec une pression optimale.It is recalled that a diesel engine with common rail comprises a conduit in which the fuel arrives under high pressure, solenoid valves connecting this conduit to each of the cylinders, and control means of these solenoid valves allow to provide each of the cylinders with the optimum quantity of fuel at the optimal time and with optimal pressure.

Quel que soit le mode de réalisation de l'invention, afin de ne pas risquer d'alerte intempestive, il est préférable que les moyens de détection du second niveau soient mis en fonctionnement seulement après détection du premier niveau.Whatever the embodiment of the invention, so as not to risk an untimely alarm, it is better that the detection means of the second level are put into operation only after detection of the first level.

L'invention concerne ainsi un dispositif d'alerte de la proximité d'un incident dans un véhicule à moteur Diesel, qui est caractérisé en ce que l'incident étant le risque de désamorçage d'au moins une pompe d'alimentation en carburant, il comprend un moyen pour détecter que le niveau de carburant est descendu au-dessous d'un second niveau, sensiblement inférieur au premier niveau minimum à partir duquel est déclenchée une alarme conseillant le remplissage de ce réservoir.The invention thus relates to a warning device of the proximity of an incident in a diesel vehicle, which is characterized in that the incident being the risk of defusing of at least one fuel supply pump, it comprises a way to detect that the fuel level has gone down below a second level, significantly lower than first minimum level from which an alarm is triggered advising the filling of this tank.

Un moyen est par exemple prévu pour réduire les performances du moteur, ce moyen étant déclenché par le moyen de détection.For example, a means is provided for reducing the performance of the engine, this means being triggered by the means of detection.

Dans une réalisation, on prévoit un moyen pour imposer un régime de ralenti au moteur quand le moyen de détection indique la proximité de l'incident.In one embodiment, a means is provided for imposing an idle speed to the engine when the means of detection indicates the proximity of the incident.

On peut aussi prévoir un moyen pour interrompre l'alimentation en carburant quand le moyen de détection indique la proximité de l'incident.It can also provide a means to interrupt the diet fuel when the detection means indicates the proximity to the incident.

Selon une réalisation, le moyen de détection comprend un moyen pour détecter la distance parcourue à partir de la détection du premier niveau minimum en carburant et un moyen pour comparer cette distance à une limite prédéterminée. According to one embodiment, the detection means comprises a way to detect the distance traveled from the detection of the first level minimum fuel and a means to compare this distance to a predetermined limit.

Dans une variante, on prévoit un moyen pour déterminer la consommation en carburant à partir de la détection du premier niveau minimum de carburant et un moyen pour comparer cette consommation à une limite prédéterminée.In one variant, a means is provided for determining fuel consumption from the detection of the first minimum fuel level and a way to compare that consumption at a predetermined limit.

Dans une réalisation, le moteur comporte un régulateur de remplissage en carburant et le moyen de détection comprend un moyen pour surveiller un paramètre du régulateur de remplissage.In one embodiment, the motor comprises a regulator fuel filling and the detection means comprises a means for monitoring a parameter of the fill regulator.

Le paramètre du régulateur de remplissage est par exemple le signal d'erreur, des moyens étant prévus pour comparer ce signal d'erreur à une limite prédéterminée.The parameter of the fill regulator is example the error signal, means being provided to compare this error signal to a predetermined limit.

Dans un mode de réalisation, le moteur comporte un régulateur de pression du carburant et le moyen de détection comprend un moyen pour surveiller un paramètre de ce régulateur de pression.In one embodiment, the engine comprises a fuel pressure regulator and the detection means includes means for monitoring a parameter of this regulator pressure.

Le paramètre du régulateur de pression est par exemple le signal d'erreur, un moyen étant prévu pour comparer ce signal d'erreur à une limite prédéterminée.The parameter of the pressure regulator is for example the error signal, means being provided for comparing this signal error to a predetermined limit.

Le paramètre du régulateur de pression peut être le degré de stabilité de la pression ou du courant de commande du régulateur de pression.The parameter of the pressure regulator can be the degree of stability of the pressure or control current of the pressure regulator.

Quand le moteur Diesel est du type à rampe commune, le moyen de détection peut être un moyen pour surveiller la pression dans la rampe commune.When the diesel engine is of the common rail type, the detection means can be a way to monitor the pressure in the common rail.

L'invention concerne aussi un dispositif d'alerte de la proximité d'un incident d'alimentation d'un moteur Diesel à pompe d'alimentation, qui caractérisé en ce que l'incident étant le risque de désamorçage d'au moins une pompe d'alimentation en carburant, et le moteur comportant un régulateur de remplissage ou de pression du carburant, il comprend un moyen pour détecter une valeur anormale d'un paramètre de la régulation.The invention also relates to a warning device of the proximity of a power supply incident to a diesel engine to feed pump, which characterized in that the incident being the risk of defusing at least one feed pump fuel, and the engine having a fill regulator or fuel pressure, it includes a means to detect an abnormal value of a parameter of the regulation.

D'autres caractéristiques et avantages de l'invention apparaítront avec la description de certains de ses modes de réalisation, celle-ci étant effectuée en se référant aux dessins ci-annexés sur lesquels :

  • la figure 1 est un schéma simplifié d'un moteur Diesel du type à rampe commune, et
  • la figure 2 est un organigramme montrant le fonctionnement d'un dispositif conforme à l'invention.
    • Other characteristics and advantages of the invention will become apparent with the description of some of its embodiments, this being done with reference to the attached drawings in which:
  • FIG. 1 is a simplified diagram of a diesel engine of the common rail type, and
  • Figure 2 is a flowchart showing the operation of a device according to the invention.

    • Un moteur Diesel comporte une pompe 10 pour l'alimentation en carburant 14 (figure 1) d'une pompe haute pression 16. La pompe d'alimentation 10 est, dans l'exemple, disposée dans un réservoir 12. En variante (non montrée), la pompe 10 est disposée dans le conduit 18 reliant le réservoir à la pompe 16. Dans une autre variante (également non montrée), elle est intégrée à la pompe haute pression 16.A diesel engine comprises a pump 10 for the fuel supply 14 (FIG. 1) of a high pump pressure 16. The feed pump 10 is, in the example, disposed in a reservoir 12. Alternatively (not shown), the pump 10 is disposed in the conduit 18 connecting the reservoir to the pump 16. In another variant (also not shown), it is integrated in the high pressure pump 16.

    La pompe d'injection 16 est destinée à mettre le carburant sous une pression élevée de l'ordre de 200 à 1 500 bars, suivant le point de fonctionnement du moteur. Elle alimente un conduit 22 destiné à l'injection du carburant sous pression dans chacun des cylindres du moteur par l'intermédiaire d'électrovannes 241, 242, etc.The injection pump 16 is intended to put the fuel under a high pressure of the order of 200 to 1500 bar, depending on the operating point of the engine. It feeds a conduit 22 for injecting fuel under pressure into each of the engine cylinders via solenoid valves 24 1 , 24 2 , etc.

    Un calculateur ou organe central de commande 30 est prévu pour commander, d'une part, un régulateur de remplissage 20 en amont de la pompe 16, et, d'autre part, un régulateur de pression 17 de la pompe d'injection 16 ainsi que l'instant d'ouverture des électrovannes 241, 242, etc.A computer or central control unit 30 is provided for controlling, on the one hand, a filling regulator 20 upstream of the pump 16, and, on the other hand, a pressure regulator 17 of the injection pump 16 and that the instant of opening of the solenoid valves 24 1 , 24 2 , etc.

    Le calculateur 30 remplit aussi les fonctions habituelles d'un calculateur de véhicule automobile, c'est-à-dire qu'il totalise la distance parcourue et la consommation et il commande la régulation de remplissage et/ou la régulation de pression. À cet effet, le calculateur 30 reçoit un signal de mesure d'un capteur 23 de pression dans la rampe commune 22 et contrôle les signaux de commande de la régulation de remplissage et/ou de la régulation de pression 17.The calculator 30 also performs the usual functions of a motor vehicle calculator, that is to say that it totals the distance traveled and the consumption and it controls the filling control and / or the control of pressure. For this purpose, the computer 30 receives a signal of measuring a pressure sensor 23 in the common rail 22 and controls the control signals of the filling control and / or pressure regulation 17.

    Ces divers organes sont mis à profit, conformément à l'invention, pour signaler au conducteur du véhicule automobile que son réservoir est pratiquement vide et qu'il est très proche de la panne sèche. En outre, des dispositions sont prises pour diminuer les performances du moteur, puis le mettre en ralenti, puis, enfin, le mettre à l'arrêt juste avant que puisse intervenir la panne sèche et donc le désamorçage des pompes 10 et 16.These various bodies are exploited in accordance with the invention, to signal to the driver of the motor vehicle that his tank is practically empty and that he is very close of the dry failure. In addition, provision is made for reduce engine performance, then slow it down, then, finally, put it to a standstill just before the dry failure and thus the defusing of the pumps 10 and 16.

    À cet effet, le calculateur 30 effectue une commande selon le diagramme de la figure 2.For this purpose, the computer 30 performs a command according to the diagram of Figure 2.

    Pour éviter des alertes ou commandes intempestives, la fonction d'alarme ou commande n'est mise en route qu'à partir du moment où le niveau du carburant 14 descend au-dessous d'un premier niveau qui, de façon la plus simple, est le niveau habituel d'alerte de niveau minimum, soit, par exemple, environ 10 % du contenu du réservoir 12.To avoid unwanted alerts or orders, the alarm function or command is started only from the moment the fuel level 14 drops below a first level which, in the simplest way, is the usual level minimum level alert, ie, for example, about 10% the contents of the tank 12.

    Cette étape est représentée par le bloc 32 sur la figure 2. À partir de cette étape 32, le calculateur 30 détermine la distance parcourue (bloc 34) et la consommation en carburant (bloc 36).This step is represented by block 32 on the FIG. 2. From this step 32, the computer 30 determines distance traveled (block 34) and fuel consumption (block 36).

    La distance parcourue est comparée à une limite prédéterminée Dr(bloc 38). Si cette distance parcourue dépasse la limite Dr, les performances du moteur sont réduites (bloc 40). Par exemple, des moyens sont prévus pour réduire la vitesse maximale et/ou limiter la vitesse de rotation du moteur et/ou limiter l'alimentation en carburant.The distance traveled is compared with a predetermined limit D r (block 38). If this distance traveled exceeds the limit D r , the engine performance is reduced (block 40). For example, means are provided for reducing the maximum speed and / or limiting the rotational speed of the engine and / or limiting the fuel supply.

    De même, la consommation en carburant est comparée à une limite prédéterminée Vr (bloc 42) et si la consommation dépasse la limite Vr, les performances du moteur sont également réduites.Similarly, the fuel consumption is compared to a predetermined limit V r (block 42) and if the consumption exceeds the limit V r , the engine performance is also reduced.

    Dans l'exemple, le calculateur 30 surveille (blocs 39 et 43) aussi le régulateur de remplissage 20 et/ou de pression 17 et indique si la régulation présente des dérives (blocs 44 et 46). Les performances du moteur sont réduites (bloc 40) quand de telles dérives interviennent.In the example, the computer 30 monitors (blocks 39 and 43) also the filling regulator 20 and / or pressure 17 and indicates if the regulation presents drifts (blocks 44 and 46). Engine performance is reduced (block 40) when such drifts occur.

    Pour surveiller les dérives de régulation de remplissage et/ou de pression, on mesure le signal d'erreur, c'est-à-dire l'écart entre la valeur réelle et la valeur désirée (la consigne). Si cet écart dépasse une limite déterminée, cet écart est indicateur de l'approche de la panne sèche et donc du désamorçage de la pompe 10 ou 16. L'écart de pression est mesuré grâce au capteur 23 de pression dans le conduit 22.To monitor filling control drifts and / or pressure, the error signal is measured, that is to say the difference between the actual value and the desired value (the setpoint). If this difference exceeds a certain limit, this difference is indicative of the approach of the dry failure and therefore of the defusing of the pump 10 or 16. The pressure difference is measured thanks to the pressure sensor 23 in the duct 22.

    Comme le montre la figure 2, en cas de dérives de régulation du remplissage et/ou de la pression de carburant, les performances du moteur sont réduites même si depuis que le premier niveau minimum ait été atteint, la distance parcourue, ou le carburant consommé ne dépasse pas la limite Dr ou Vr. Toutefois, pour empêcher les alertes intempestives, la surveillance de ces dérives ne démarre qu'après apparition du message du bloc 32.As shown in Figure 2, in case of drift control and / or fuel pressure, the engine performance is reduced even if since the first minimum level has been reached, the distance traveled, or the fuel consumed does not exceed the limit D r or V r . However, to prevent nuisance alerts, the monitoring of these drifts only starts after the appearance of the message of block 32.

    Le calculateur 30 surveille (bloc 48) également au moins un paramètre du régulateur 17 de pression de la pompe 16. Par exemple, si la pression dans ce régulateur 17 ne peut atteindre la valeur de consigne, c'est-à-dire si l'écart entre la pression réelle et la pression de consigne est supérieur à une valeur prédéterminée, cette situation indique également, et de façon sûre, l'approche de la panne sèche, c'est-à-dire que la pompe 10 ou 16 commence à aspirer de l'air en même temps que du carburant. En outre, dans cette situation, la régulation présente des instabilités, le signal d'erreur subissant de fortes oscillations. Ces instabilités fournissent aussi de façon certaine l'information que les pompes 10 et 16 sont sur le point de se désamorcer.The computer 30 monitors (block 48) also at minus one parameter of the pressure regulator 17 of the pump 16. For example, if the pressure in this regulator 17 can not to reach the set point, ie if the difference between the actual pressure and the set pressure is greater than a predetermined value, this situation also indicates, and in a safe way, the approach of the dry fault, that is to say that the pump 10 or 16 starts sucking air at the same time as fuel. Moreover, in this situation, the regulation instabilities, the error signal undergoing strong oscillations. These instabilities also provide for sure the information that pumps 10 and 16 are about to defuse yourself.

    Dans ces conditions, si la pression dans la pompe 16 (Prail) ne peut atteindre la consigne et si la régulation présente des instabilités (bloc 50), pour éviter le désamorçage, le moteur est mis au ralenti et, ensuite, l'injection en carburant est interrompue (bloc 52).Under these conditions, if the pressure in the pump 16 (Prail) can not reach the set point and if the regulation instabilities (block 50), to avoid defusing, engine is idling and then fueling is interrupted (block 52).

    Les paramètres Dr et Vr dépendent de chaque véhicule. Ils sont déterminés par des essais. Ces paramètres ont, dans un exemple, pour valeurs approximatives : Dr = 80 km et Vr = 4 litres.The parameters D r and V r depend on each vehicle. They are determined by tests. These parameters have, in one example, approximate values: D r = 80 km and V r = 4 liters.

    Dans une réalisation, avant la réduction des performances du moteur, ou en même temps, on prévoit une alarme lumineuse au tableau de bord du véhicule ou une alarme sonore qui indique au conducteur qu'il se trouve à proximité du désamorçage de la pompe 10 ou 16.In one embodiment, before the performance reduction of the engine, or at the same time, a light alarm on the dashboard of the vehicle or an audible alarm that indicates to the driver that he is near the defusing pump 10 or 16.

    L'invention consiste donc à alerter (par une alarme ou une action sur le moteur) le conducteur (ou, de façon plus générale, l'utilisateur d'un moteur Diesel) du risque d'incident quand le niveau de carburant descend au-dessous d'un second niveau, sensiblement inférieur au premier niveau minimum indiqué par le bloc 32. Ce second niveau peut être détecté par divers moyens. La détection directe du second niveau ou la totalisation de consommation (blocs 36 et 42) ne sont pas indispensables pour cette détection. En effet, chacun des divers autres paramètres telles que la distance parcourue (blocs 34 et 38), la mesure des dérives de régulation de remplissage (blocs 44 et 46), ainsi que les mesures d'instabilités ou dérives dans le régulateur de pression 17 (bloc 48) constituent chacun, en eux-mêmes, des indicateurs du fait que le niveau du réservoir est descendu au-dessous du second niveau.The invention thus consists in alerting (by an alarm or action on the engine) the driver (or, more generally, the user of a diesel engine) the risk of incident when the fuel level drops below a second level, substantially below the minimum level indicated by block 32. This second level can be detected by various means. Direct detection of the second level or totalization consumption (blocks 36 and 42) are not essential for this detection. Indeed, each of the various other parameters such as distance traveled (blocks 34 and 38), the measurement of filling control drifts (blocks 44 and 46), as well as measurements of instabilities or drifts in the regulator of pressure 17 (block 48) are, in themselves, indicators because the level of the tank has dropped below second level.

    Claims (11)

    1. A device for providing a warning about the proximity of a malfunction in a diesel motor vehicle, the malfunction being the risk of draining of at least a pump (10; 16) for fuel supply and the device comprising means (34; 36; 48) for detecting that the fuel level has gone down below a second level, perceptibly inferior to the first minimum level from which an alarm (32) is triggered advising for the refilling of this tank, characterised in that the detection means comprise means (34) for detecting the distance travelled from the detection of the first fuel minimum level and means (38) for comparing this distance to a predetermined limit (Dr) and/or the device comprises means (36) for determining the fuel consumption from the detection of the first fuel minimum level and means (42) for comparing this consumption to a predetermined limit (Vr).
    2. A device according to claim 1, characterised in that it comprises means (40) for reducing the performances of the motor which is triggered by the detection means.
    3. A device according to claim 1 or 2, characterised in that it comprises means (52) for imposing an idle running to the motor when the detection means indicates the proximity of the malfunction.
    4. A device according to any of claims 1-3, characterised in that it comprises means (52) for stopping the fuel supply when the detection means indicates the proximity of the malfunction.
    5. A device according to any of the previous claims, characterised in that it comprises a light or sound alarm, controlled by the detection means, informing the driver of the proximity of the malfunction.
    6. A device according to any of the previous claims, characterised in that the motor comprising a fuel supply regulator (20), the detection means comprises means (39, 43) for monitoring a parameter of the supply regulator.
    7. A device according to claim 6, characterised in that the parameter of the supply regulator is the error signal, means (30) being provided for comparing this error signal to a predetermined limit.
    8. A device according to any of the previous claims, characterised in that the motor comprising a fuel pressure regulator (17), the detection means comprises means for monitoring a parameter of this pressure regulator.
    9. A device according to claim 8, characterised in that the parameter of the pressure regulator is the error signal, means being provided for comparing this error signal to a predetermined limit.
    10. A device according to claim 8 or 9, characterised in that the parameter of the pressure regulator is the stability degree of the pressure or of the control current of the pressure regulator.
    11. A device according to any of the previous claims, characterised in the diesel motor being of the common rail type, the detection means comprises a means (23; 39; 43) for monitoring the pressure in the common rail (22).
    EP01400675A 2000-04-13 2001-03-14 Alarm and/or control device for diesel engines, especially for automotive vehicles Expired - Lifetime EP1146221B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0004761A FR2807790B1 (en) 2000-04-13 2000-04-13 ALARM AND / OR CONTROL DEVICE FOR A DIESEL ENGINE, PARTICULARLY FOR A MOTOR VEHICLE
    FR0004761 2000-04-13

    Publications (2)

    Publication Number Publication Date
    EP1146221A1 EP1146221A1 (en) 2001-10-17
    EP1146221B1 true EP1146221B1 (en) 2005-08-31

    Family

    ID=8849223

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01400675A Expired - Lifetime EP1146221B1 (en) 2000-04-13 2001-03-14 Alarm and/or control device for diesel engines, especially for automotive vehicles

    Country Status (5)

    Country Link
    EP (1) EP1146221B1 (en)
    AT (1) ATE303509T1 (en)
    DE (1) DE60112984T2 (en)
    ES (1) ES2248249T3 (en)
    FR (1) FR2807790B1 (en)

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10161449A1 (en) * 2001-12-14 2003-06-26 Fev Motorentech Gmbh Operating internal combustion engine with filling lock involves inhibiting filling of fuel tank and/or engine starting if predefined minimum quantity in operating medium tank is reached
    US7702449B2 (en) * 2008-08-01 2010-04-20 International Engine Intellectual Property Company, Llc High pressure oil limit based on fuel level to protect fuel injectors

    Family Cites Families (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4124013A (en) * 1977-06-29 1978-11-07 Rivalto Michael A Fuel level responsive means
    GB2140091A (en) * 1983-05-17 1984-11-21 Petter Refrigeration Ltd Fuel supply system for a diesel engine
    US4960088A (en) * 1989-09-08 1990-10-02 Thermo King Corporation Low fuel shut-off system
    US5095880A (en) * 1991-08-22 1992-03-17 Ricks Robert C Air purging and shut-down system for diesel engines

    Also Published As

    Publication number Publication date
    DE60112984T2 (en) 2006-06-22
    ES2248249T3 (en) 2006-03-16
    DE60112984D1 (en) 2005-10-06
    EP1146221A1 (en) 2001-10-17
    FR2807790B1 (en) 2002-10-11
    FR2807790A1 (en) 2001-10-19
    ATE303509T1 (en) 2005-09-15

    Similar Documents

    Publication Publication Date Title
    EP1409283B1 (en) Fuel transfer pump and control
    US5896083A (en) System and method for detecting vehicle speed sensor tampering
    US6625526B2 (en) Method and device for monitoring vehicles and/or control functions
    FR2523530A1 (en) STARTING-STOP DEVICE FOR MOTOR VEHICLE ENGINE
    FR2593287A1 (en) Device for monitoring a friction clutch, more particularly on a motor vehicle
    EP1146221B1 (en) Alarm and/or control device for diesel engines, especially for automotive vehicles
    FR2905757A1 (en) ARRANGEMENT FOR FILLING IN LUBRICATING OIL AND DRAINING AN ENGINE ON A TESTING BENCH
    FR2577283A1 (en) METHOD AND DEVICE FOR CONTROLLING VACUUM ROTATION SPEED OF INTERNAL COMBUSTION ENGINES
    JP4135666B2 (en) Engine fuel supply control device
    JP5508839B2 (en) Vehicle and state determination method of power storage device provided in vehicle
    FR2790224A1 (en) System for using a low-pressure tank of an IC engine to help in engine functions such as braking etc.
    FR2640556A1 (en) Method and device for controlling the operation of a pump for transferring fuel between an auxiliary chamber and a main chamber of a tank, particularly of a motor vehicle
    EP0133069B1 (en) Oil level gauging device, particularly for an automatic gear box
    FR2880543A1 (en) Fire engine or fire pump for extinguishing fire, has alarm device activated by detection unit when cavitation phenomenon of centrifugal pump is identified to allow operator or control unit to intervene on operation parameters of pump
    FR2549141A1 (en) Fuel saving circuit for car in traffic
    WO2021151977A1 (en) System for detecting fuel in an injection circuit of a diesel engine
    JPH0212254Y2 (en)
    EP0291370B1 (en) Supervisory device for the pressure of an oil pump driven by the transmission of an automotive vehicle
    EP1910652A2 (en) Method for detecting the oxidation level of an engine oil and for recommending an oil change
    JP2000328917A (en) Failure diagnostic system for electric oil pump
    FR2918115A1 (en) SYSTEM AND METHOD FOR DETECTING THE TRACKING OF AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE.
    FR2916395A1 (en) AUTOMATIC WHEEL CHANGE LIGHTING DEVICE.
    JP2000345821A (en) Abnormality diagnosis device of hydraulic switch of engine and fuel injection control device
    JPH092598A (en) Oiling device
    FR3069015A1 (en) METHOD FOR MANAGING A DEVICE FOR LUBRICATING AN 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

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    AX Request for extension of the european patent

    Free format text: AL;LT;LV;MK;RO;SI

    17P Request for examination filed

    Effective date: 20020409

    AKX Designation fees paid

    Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    17Q First examination report despatched

    Effective date: 20040813

    GRAP Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOSNIGR1

    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): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    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: 20050831

    Ref country code: IE

    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: 20050831

    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: 20050831

    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: 20050831

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    Ref country code: CH

    Ref legal event code: EP

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FG4D

    Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

    REF Corresponds to:

    Ref document number: 60112984

    Country of ref document: DE

    Date of ref document: 20051006

    Kind code of ref document: P

    GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

    Effective date: 20051104

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

    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: 20051130

    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: 20051130

    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: 20051130

    NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FG2A

    Ref document number: 2248249

    Country of ref document: ES

    Kind code of ref document: T3

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FD4D

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

    Ref country code: BE

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

    Effective date: 20060331

    Ref country code: MC

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

    Effective date: 20060331

    Ref country code: LI

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

    Effective date: 20060331

    Ref country code: LU

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

    Effective date: 20060331

    Ref country code: CH

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

    Effective date: 20060331

    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

    26N No opposition filed

    Effective date: 20060601

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: 746

    Effective date: 20070116

    BERE Be: lapsed

    Owner name: PEUGEOT CITROEN AUTOMOBILES SA

    Effective date: 20060331

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

    Ref country code: ES

    Payment date: 20080307

    Year of fee payment: 8

    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: 20050831

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

    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: 20050831

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FD2A

    Effective date: 20090316

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

    Ref country code: ES

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

    Effective date: 20090316

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

    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: 20050831

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

    Ref country code: FR

    Payment date: 20120410

    Year of fee payment: 12

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

    Ref country code: DE

    Payment date: 20120223

    Year of fee payment: 12

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

    Ref country code: IT

    Payment date: 20120225

    Year of fee payment: 12

    Ref country code: GB

    Payment date: 20120224

    Year of fee payment: 12

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

    Effective date: 20130314

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: ST

    Effective date: 20131129

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 60112984

    Country of ref document: DE

    Effective date: 20131001

    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: 20130314

    Ref country code: DE

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

    Effective date: 20131001

    Ref country code: FR

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

    Effective date: 20130402

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

    Ref country code: IT

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

    Effective date: 20130314