EP0812986A1 - Cut-off control method and system for automobile starter motor - Google Patents

Cut-off control method and system for automobile starter motor Download PDF

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Publication number
EP0812986A1
EP0812986A1 EP97401291A EP97401291A EP0812986A1 EP 0812986 A1 EP0812986 A1 EP 0812986A1 EP 97401291 A EP97401291 A EP 97401291A EP 97401291 A EP97401291 A EP 97401291A EP 0812986 A1 EP0812986 A1 EP 0812986A1
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EP
European Patent Office
Prior art keywords
starter
automatic
cut
heat engine
temperature
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Granted
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EP97401291A
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German (de)
French (fr)
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EP0812986B1 (en
Inventor
Bruno Lefebvre
Gérard Vilou
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Valeo Equipements Electriques Moteur SAS
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Valeo Equipements Electriques Moteur SAS
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    • 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

Definitions

  • the present invention relates to methods and systems for controlling the shutdown of motor vehicle starters.
  • This phenomenon is particularly sensitive to cold (fouling of the spark plugs, overfeeding of fuel, excessively high unburned rate, etc.).
  • An object of the invention is to overcome these drawbacks.
  • the invention for its part, provides a very simple and reliable control which makes it possible, when it is cold, to extend the drive action of the starter in order to ensure a complete and defined start of the engine and to limit the risk of bad start.
  • the solution according to the invention consists in that, at the end of the automatic shutdown of the electric motor of a starter during a start, the automatic shutdown function is inhibited.
  • This starter D comprises an electric motor M mounted between a terminal B + supplying the vehicle battery voltage and earth, as well as a contactor 1 which is mounted between said motor M and the terminal B + .
  • This contactor 1 is a relay actuated by displacement and holding windings 3, the supply of which is managed by a management 2.
  • This management unit 2 integrates, in a manner known per se, control and protection functions of the electric motor M, as well as means 2a for controlling the automatic shutdown of the motor M.
  • the starter D also includes timing means 4 which transmit to the management unit 2 an active timing signal which inhibits the automatic cut-off function for a predetermined time from the cut-off of the starter switch supply.
  • timing means 4 which transmit to the management unit 2 an active timing signal which inhibits the automatic cut-off function for a predetermined time from the cut-off of the starter switch supply.
  • the time delay device 4 becomes active and inhibits for a period of predetermined duration T the automatic shutdown control function of the management unit 2.
  • the electric motor M of the starter D is controlled by a management unit 12, which comprises means 12a for the automatic cut-off of said motor M.
  • a management unit 12 which comprises means 12a for the automatic cut-off of said motor M.
  • the starter also comprises timing means 14. Unlike the starter of FIG. 1, the output of these timing means does not directly control the inhibition of the means 12a, but is sent to a comparator 15 which is activated during the period of timer triggered by the means 14.
  • This comparator 15 compares the speed of the electric motor M with a reference speed, which is significant of the starting of the heat engine.
  • the management means 12a It delivers to the management means 12a a signal to inhibit the automatic cut-off as long as the speed of the thermal engine has not exceeded a predetermined level. If a second start is made during the delay period triggered by the means 14, it is the comparator which controls the shutdown of the electric motor M.
  • the automatic shutdown of the electric motor is subject to the measurement of the ambient temperature.
  • the electric motor M is stopped as soon as possible, as soon as the motor autorotates.
  • the automatic cut-off is neutralized at the end of the command for a first start by a variable time delay depending on the temperature and the higher the lower the temperature.
  • the automatic shutdown of the electric starter motor can be controlled by a signal for exceeding the threshold of the speed of the thermal engine, the reference speed value defining this threshold being variable and all the higher the lower the temperature. .
  • the supply of the motor M is controlled by a relay 21, the winding supply 23 of which is itself controlled by a management unit 22 which comprises means 22a for controlling the automatic cut-off of the starter.
  • the means 22a comprise a comparator 26 which compares the speed of rotation N of the thermal engine with a reference value V REF .
  • This reference value V REF is a function of the temperature. It is provided by an adder 27 which gives the sum of a constant voltage V 0 and a variable voltage V T which is an inverse function of the temperature.
  • the voltage V 0 is supplied by the battery supply (resistive means 28).
  • the voltage V T comes from a differential amplifier 29, the input divider bridge 29a has a resistor 30 having a temperature coefficient significantly different from that of the other resistors (CTN type resistor for example).

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  • 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)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The method involves cutting the supply to the starter (D) motor (M) when the engine is rotating under its own power. The point at which the supply interruption is triggered is modified from the nominal point to increase the reliability of starting with a single operation of the starter. The supply to the starter motor is extended beyond the nominal interruption point if the ambient or engine temperature is low, or if the engine fails to reach a set speed that can only be attained if it is running under its own power. The engine speed N is compared to a reference speed, which is a function of temperature. When the starter motor has been stopped, the automatic control is switched off.

Description

La présente invention est relative aux procédés et systèmes pour la commande de la coupure de démarreurs de véhicules automobiles.The present invention relates to methods and systems for controlling the shutdown of motor vehicle starters.

Différents systèmes de coupure automatique de démarreurs sont déjà connus. Grâce au traitement de signaux tels que l'intensité absorbée par le démarreur, la tension batterie, les impulsions de positionnement angulaire du vilebrequin destinées au calculateur d'injection, la tension de sortie du capteur de vibration, etc... on peut déterminer à quel moment le moteur thermique est démarré. La détection du démarrage coupe l'alimentation du contacteur de commande de démarreur. Pour réduire les usures du démarreur et la durée du bruit de démarrage, on cherche à arrêter le démarreur le plus tôt possible.Various automatic starter cut-off systems are already known. Thanks to the processing of signals such as the current absorbed by the starter, the battery voltage, the angular positioning pulses of the crankshaft intended for the injection computer, the output voltage of the vibration sensor, etc. when the engine is started. Start detection cuts power to the starter control switch. To reduce wear on the starter and the duration of starting noise, we try to stop the starter as soon as possible.

Certains moteurs thermiques, en fonction de leur technologie, de leur état d'entretien et de diverses conditions d'utilisations, peuvent parfois présenter l'anomalie suivante : le moteur commence à monter en régime pendant que le démarreur retourne au repos, mais après quelques tours du vilebrequin, la vitesse décroît et le moteur finit par caler. Il est alors nécessaire de réactiver le démarreur une ou plusieurs fois.Certain internal combustion engines, depending on their technology, their state of maintenance and various conditions of use, can sometimes have the following anomaly: the engine starts to rev up while the starter returns to rest, but after a few the crankshaft turns, the speed decreases and the engine eventually stalls. It is then necessary to reactivate the starter one or more times.

Ce phénomène est particulièrement sensible à froid (encrassement des bougies, suralimentation en carburant, taux d'imbrûlés trop importants, ...).This phenomenon is particularly sensitive to cold (fouling of the spark plugs, overfeeding of fuel, excessively high unburned rate, etc.).

Un but de l'invention est de pallier ces inconvénients.An object of the invention is to overcome these drawbacks.

On connaît déjà par US 4,994,683 une commande de la coupure automatique du moteur électrique d'un démarreur de véhicule automobile selon laquelle en régime nominal, on commande la coupure dudit moteur électrique dès que l'autorotation du moteur thermique est constatée, dans laquelle on modifie la loi de commande de la coupure du moteur électrique du démarreur, lorsque le moteur thermique ne démarre pas ou en fonction de la température, de façon à prolonger l'action d'entraînement dudit moteur lorsque le démarrage ne se fait pas ou à basse température.Already known from US 4,994,683 is a command to automatically cut the electric motor of a motor vehicle starter according to which, in nominal speed, the cut off of said electric motor is controlled as soon as the autorotation of the heat engine is observed, in which one modifies the starter electric motor shutdown control law, when the motor thermal does not start or depending on the temperature, so as to prolong the driving action of said motor when the starting is not done or at low temperature.

L'invention propose quant à elle une commande fiable et d'une grande simplicité qui permet, lorsqu'il fait froid, de prolonger l'action d'entraînement du démarreur afin d'assurer un démarrage complet et définit du moteur et de limiter les risques de mauvais démarrage.The invention, for its part, provides a very simple and reliable control which makes it possible, when it is cold, to extend the drive action of the starter in order to ensure a complete and defined start of the engine and to limit the risk of bad start.

La solution selon l'invention consiste en ce qu'à l'issue de la coupure automatique du moteur électrique d'un démarreur lors d'un démarrage, on inhibe la fonction de coupure automatique.The solution according to the invention consists in that, at the end of the automatic shutdown of the electric motor of a starter during a start, the automatic shutdown function is inhibited.

D'autres caractéristiques et avantages de l'invention ressortiront encore de la description qui suit. Cette description est purement illustrative et non limitative. Elle doit être lue en regard des dessins annexés sur lesquels :

  • la figure 1 est un schéma illustrant un mode de réalisation possible pour un système conforme à l'invention ;
  • la figure 2 est un schéma illustrant une autre variante de réalisation possible pour un système conforme à l'invention ;
  • la figure 3 illustre une autre variante de réalisation possible pour un système conforme à l'invention.
Other characteristics and advantages of the invention will emerge from the description which follows. This description is purely illustrative and not limiting. It must be read in conjunction with the appended drawings in which:
  • Figure 1 is a diagram illustrating a possible embodiment for a system according to the invention;
  • Figure 2 is a diagram illustrating another possible alternative embodiment for a system according to the invention;
  • Figure 3 illustrates another possible alternative embodiment for a system according to the invention.

Sur la figure 1, on a référencé par D dans son ensemble le démarreur d'un moteur thermique. Ce démarreur D comporte un moteur électrique M monté entre une borne B+ d'alimentation à la tension de la batterie du véhicule et la masse, ainsi qu'un contacteur 1 qui est monté entre ledit moteur M et la borne B+. Ce contacteur 1 est un relais actionné par des bobinages 3 de déplacement et de maintien dont l'alimentation est gérée par une unité de gestion 2. Cette unité de gestion 2 intègre, de façon connue en soi, des fonctions de commande et de protection du moteur électrique M, ainsi que des moyens 2a pour la commande de la coupure automatique du moteur M.In Figure 1, reference has been made by D as a whole to the starter of a heat engine. This starter D comprises an electric motor M mounted between a terminal B + supplying the vehicle battery voltage and earth, as well as a contactor 1 which is mounted between said motor M and the terminal B + . This contactor 1 is a relay actuated by displacement and holding windings 3, the supply of which is managed by a management 2. This management unit 2 integrates, in a manner known per se, control and protection functions of the electric motor M, as well as means 2a for controlling the automatic shutdown of the motor M.

Ces moyens sont également déjà connus en eux-mêmes. On pourra par exemple se référer aux demandes de brevets FR 2 626 417 et FR 2 393 165 ou encore avantageusement aux demandes de brevets français déposées par la Demanderesse sous les numéros FR 96 03511 et FR 96 02464.These means are also already known in themselves. We can for example refer to patent applications FR 2 626 417 and FR 2 393 165 or even advantageously to French patent applications filed by the Applicant under the numbers FR 96 03511 and FR 96 02464.

Le démarreur D comporte également des moyens de temporisation 4 qui transmettent à l'unité de gestion 2 un signal actif de temporisation qui inhibe la fonction de coupure automatique pendant un temps prédéterminé à partir de la coupure de l'alimentation du contacteur de démarreur. Lorsqu'un opérateur actionne la clé de contact C du véhicule, le moteur électrique M est alimenté, puis sa coupure est automatiquement commandée par l'unité de gestion 2, par exemple dès que le début de l'autorotation du moteur est constaté.The starter D also includes timing means 4 which transmit to the management unit 2 an active timing signal which inhibits the automatic cut-off function for a predetermined time from the cut-off of the starter switch supply. When an operator actuates the ignition key C of the vehicle, the electric motor M is powered, then its cut-off is automatically controlled by the management unit 2, for example as soon as the start of the autorotation of the engine is observed.

Lorsque la coupure du moteur M est commandée, le dispositif de temporisation 4 devient actif et inhibe pour une période d'une durée T prédéterminée la fonction de commande de coupure automatique de l'unité de gestion 2.When the engine shutdown M is commanded, the time delay device 4 becomes active and inhibits for a period of predetermined duration T the automatic shutdown control function of the management unit 2.

Ainsi, si l'opérateur doit lancer un nouveau démarrage au cours de cette période, la fonction de coupure automatique de l'unité 2 étant inhibée, le démarreur reste engagé tant que la clé de contact C est fermée.Thus, if the operator has to initiate a new start during this period, the automatic cut-off function of unit 2 being inhibited, the starter remains engaged as long as the ignition key C is closed.

Ceci permet à l'opérateur de faire fonctionner le moteur électrique M pendant le temps nécessaire afin d'assurer le démarrage complet du moteur thermique.This allows the operator to operate the electric motor M for the time necessary to ensure the complete start of the heat engine.

On se réfère maintenant à la figure 2 sur laquelle on a illustré une autre variante de réalisation possible pour le système de l'invention.Referring now to Figure 2 in which there is illustrated another possible embodiment for the system of the invention.

On a repris pour les éléments de la variante de la figure 1 qui se retrouvent sur la variante de la figure 2, la même numérotation de référence augmentée de 10.The same reference numbering increased by 10 has been used for the elements of the variant of FIG. 1 which are found in the variant of FIG. 2.

De la même façon que sur la figure 1, le moteur électrique M du démarreur D est commandé par une unité de gestion 12, qui comprend des moyens 12a pour la coupure automatique dudit moteur M. Ces moyens 12a commandent plus précisément l'alimentation du bobinage 13 d'un relais 11.In the same way as in FIG. 1, the electric motor M of the starter D is controlled by a management unit 12, which comprises means 12a for the automatic cut-off of said motor M. These means 12a more precisely control the supply of the winding 13 of a relay 11.

Le démarreur comporte également des moyens de temporisation 14. Contrairement au démarreur de la figure 1, la sortie de ces moyens de temporisation ne commande pas directement l'inhibition des moyens 12a, mais est envoyée sur un comparateur 15 qui est activé pendant la période de temporisation déclenchée par les moyens 14.The starter also comprises timing means 14. Unlike the starter of FIG. 1, the output of these timing means does not directly control the inhibition of the means 12a, but is sent to a comparator 15 which is activated during the period of timer triggered by the means 14.

Ce comparateur 15 compare la vitesse du moteur électrique M à une vitesse de référence, qui est significative du démarrage du moteur thermique.This comparator 15 compares the speed of the electric motor M with a reference speed, which is significant of the starting of the heat engine.

Il délivre au moyen de gestion 12a un signal d'inhibition de la coupure automatique tant que la vitesse du moteur thermique n'a pas dépassé un niveau prédéterminé. Si un second démarrage est opéré pendant la période de temporisation déclenchée par les moyens 14, c'est le comparateur qui pilote la coupure du moteur électrique M.It delivers to the management means 12a a signal to inhibit the automatic cut-off as long as the speed of the thermal engine has not exceeded a predetermined level. If a second start is made during the delay period triggered by the means 14, it is the comparator which controls the shutdown of the electric motor M.

Ainsi, on dispose d'un module électronique qui permet, lors du deuxième démarrage consécutif, de neutraliser la fonction de coupure automatique tant que la vitesse du moteur thermique n'est pas suffisante pour que l'on soit sûr que le démarrage est réussi.Thus, there is an electronic module which makes it possible, during the second consecutive start, to neutralize the automatic cut-off function as long as the speed of the heat engine is not sufficient to ensure that the start is successful.

En variante encore, la coupure automatique du moteur électrique est assujettie à la mesure de la température ambiante.In another variant, the automatic shutdown of the electric motor is subject to the measurement of the ambient temperature.

A température élevée ou modérée, le moteur électrique M est arrêté au plus tôt, dès l'autorotation du moteur.At high or moderate temperature, the electric motor M is stopped as soon as possible, as soon as the motor autorotates.

A basse température, la coupure automatique est neutralisée à l'issue de la commande d'un premier démarrage par une temporisation variable en fonction de la température et d'autant plus grande que la température est basse.At low temperature, the automatic cut-off is neutralized at the end of the command for a first start by a variable time delay depending on the temperature and the higher the lower the temperature.

En variante, la coupure automatique du moteur électrique du démarreur peut être commandée par un signal de dépassement de seuil de la vitesse du moteur thermique, la valeur de vitesse de référence définissant ce seuil étant variable et d'autant plus élevée que la température est basse.As a variant, the automatic shutdown of the electric starter motor can be controlled by a signal for exceeding the threshold of the speed of the thermal engine, the reference speed value defining this threshold being variable and all the higher the lower the temperature. .

Une variante de réalisation en ce sens a été illustrée sur la figure 3.An alternative embodiment in this sense has been illustrated in FIG. 3.

On a repris pour les différents éléments de la figure 1 qui se retrouvent sur cette figure 3, la même numérotation de référence augmentée de 20.The same reference numbering increased by 20 has been used for the various elements of FIG. 1 which are found in this FIG. 3.

L'alimentation du moteur M est commandée par un relais 21, dont l'alimentation de bobinage 23 est elle-même commandée par une unité de gestion 22 qui comporte des moyens 22a pour la commande de la coupure automatique du démarreur.The supply of the motor M is controlled by a relay 21, the winding supply 23 of which is itself controlled by a management unit 22 which comprises means 22a for controlling the automatic cut-off of the starter.

Dans l'exemple illustré sur la figure 3, les moyens 22a comprennent un comparateur 26 qui compare la vitesse de rotation N du moteur thermique à une valeur de référence VREF.In the example illustrated in FIG. 3, the means 22a comprise a comparator 26 which compares the speed of rotation N of the thermal engine with a reference value V REF .

Cette valeur de référence VREF est fonction de la température. Elle est fournie par un additionneur 27 qui donne la somme d'une tension V0 constante et d'une tension VT variable qui est une fonction inverse de la température.This reference value V REF is a function of the temperature. It is provided by an adder 27 which gives the sum of a constant voltage V 0 and a variable voltage V T which is an inverse function of the temperature.

La tension V0 est fournie par l'alimentation de la batterie (moyens résistifs 28).The voltage V 0 is supplied by the battery supply (resistive means 28).

La tension VT est issue d'un amplificateur différentiel 29 dont le pont diviseur 29a d'entrée présente une résistance 30 ayant un coefficient de température nettement différent de celui des autres résistances (résistance de type CTN par exemple).The voltage V T comes from a differential amplifier 29, the input divider bridge 29a has a resistor 30 having a temperature coefficient significantly different from that of the other resistors (CTN type resistor for example).

Comme on l'aura compris, les différentes variantes de réalisation qui viennent d'être décrites permettent un démarrage à toute température.As will be understood, the various alternative embodiments which have just been described allow starting at any temperature.

Claims (10)

Procédé pour la commande de la coupure automatique du moteur électrique (M) d'un démarreur (D) de véhicule automobile, selon lequel en régime nominal, on commande la coupure dudit moteur électrique (M) dès que l'autorotation du moteur thermique est constatée, dans lequel on modifie la loi de commande de la coupure du moteur électrique (M) du démarreur (D), lorsque le moteur thermique ne démarre pas ou en fonction de la température, de façon à prolonger l'action d'entraînement dudit moteur lorsque le démarrage ne se fait pas ou à basse température, caractérisé en ce qu'à l'issue de la coupure automatique du moteur électrique (M) d'un démarreur (D) lors d'un démarrage, on inhibe la fonction de coupure automatique.Method for controlling the automatic cut-off of the electric motor (M) of a motor vehicle starter (D), according to which, in nominal mode, the cut-out of said electric motor (M) is controlled as soon as the autorotation of the heat engine is observed, in which the law controlling the shutdown of the electric motor (M) of the starter (D) is modified, when the heat engine does not start or as a function of the temperature, so as to prolong the driving action of said motor when starting does not take place or at low temperature, characterized in that after the automatic shutdown of the electric motor (M) of a starter (D) during starting, the function of automatic shutdown. Procédé selon la revendication 1, caractérisé en ce qu'à l'issue de la coupure automatique du moteur électrique (M) du démarreur (D) lors d'un démarrage, on inhibe pendant une période donnée la fonction de coupure automatique.Method according to claim 1, characterized in that, after the automatic shutdown of the electric motor (M) of the starter (D) during a start, the automatic shutdown function is inhibited for a given period. Procédé selon la revendication 1, caractérisé en ce qu'à l'issue de la coupure automatique du moteur électrique (M) d'un démarreur (D) lors d'un démarrage, on inhibe la fonction de coupure automatique tant que, pendant une période donnée, la vitesse de rotation du moteur thermique n'a pas atteint une valeur seuil correspondant à une vitesse suffisante pour que l'on puisse considérer que le moteur thermique est démarré.Method according to claim 1, characterized in that after the automatic cut-off of the electric motor (M) of a starter (D) during a start, the automatic cut-off function is inhibited as long as, during a given period, the speed of rotation of the heat engine has not reached a threshold value corresponding to a speed sufficient for it to be considered that the heat engine is started. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'on mesure la température ambiante du véhicule et en ce qu'on assujetit la commande de la coupure automatique du démarreur (D) à cette température.Method according to one of the preceding claims, characterized in that the ambient temperature of the vehicle is measured and in that the control of the automatic starter cut-off (D) is subject to this temperature. Procédé selon la revendication 4, caractérisé en ce qu'on compare la vitesse de rotation (N) du moteur thermique à une vitesse de référence (VREF) qui est une fonction de la température et qui est d'autant plus grande que la température est basse et en ce qu'on commande la coupure du moteur électrique du démarreur lorsque la vitesse (N) du moteur thermique devient supérieure à cette vitesse de référence.Method according to claim 4, characterized in that the rotational speed (N) of the heat engine is compared with a reference speed (V REF ) which is a function of the temperature and which is all the greater the lower the temperature and in that the electric starter motor is cut off when the speed (N) of the heat engine becomes greater than this reference speed. Système pour la commande de la coupure automatique du démarreur (D) d'un véhicule automobile comportant des moyens de gestion (2, 12,22) qui, en régime nominal, commandent la coupure du moteur électrique dès que l'autorotation du moteur thermique est constatée, ce système comportant des moyens (4 ; 14, 15 ; 26 à 30) pour modifier la loi de commande de ces moyens de gestion, lorsque le moteur thermique ne démarre pas ou en fonction de la température, de façon à prolonger l'action d'entraînement dudit moteur lorsque le démarrage ne se fait pas ou à basse température, caractérisé en ce qu'il comporte des moyens (4) qui inhibent les moyens (2) de gestion de la coupure automatique du démarreur (D), à l'issue de la commande d'une coupure automatique du démarreur (D).System for controlling the automatic starter cut-off (D) of a motor vehicle comprising management means (2, 12, 22) which, in nominal mode, control the cut-off of the electric motor as soon as the autorotation of the heat engine is noted, this system comprising means (4; 14, 15; 26 to 30) for modifying the control law of these management means, when the heat engine does not start or as a function of the temperature, so as to prolong the drive action of said motor when the start is not made or at low temperature, characterized in that it comprises means (4) which inhibit the means (2) for managing the automatic cut-off of the starter (D), after commanding an automatic starter cutout (D). Système selon la revendication 6, caractérisé en ce qu'il comporte des moyens de temporisation (4) qui inhibent les moyens (2) de gestion de la coupure automatique du démarreur (D), pendant une période donnée à l'issue de la commande d'une coupure automatique du démarreur (D).System according to claim 6, characterized in that it includes timing means (4) which inhibit the means (2) for managing the automatic cut-off of the starter (D), for a given period after the command an automatic starter cutout (D). Système selon la revendication 6, caractérisé en ce qu'il comporte des moyens (14) de temporisation et un comparateur (15) activé par lesdits moyens de temporisation (14) pendant une période donnée à l'issue de la commande d'une coupure automatique du démarreur (D) et en ce que ledit comparateur (15) inhibe les moyens de gestion (2) de la coupure automatique du démarreur (D), tant que la vitesse de rotation du moteur thermique n'a pas atteint une valeur seuil (VREF) correspondant à une valeur suffisante pour que l'on puisse considérer que le moteur thermique est démarré.System according to claim 6, characterized in that it comprises means (14) of delay and a comparator (15) activated by said means of delay (14) for a given period after the command of a cut automatic starter (D) and in that said comparator (15) inhibits the management means (2) of the automatic cut-off of the starter (D), as long as the speed of rotation of the heat engine has not reached a threshold value (V REF ) corresponding to a value sufficient for it to be considered that the heat engine is started. Système selon l'une des revendications 6 à 8, caractérisé en ce qu'il comporte des moyens (26 à 30) de gestion de la coupure automatique du démarreur (D) en fonction de la température ambiante du véhicule.System according to one of claims 6 to 8, characterized in that it comprises means (26 to 30) for managing the automatic cut-off of the starter (D) as a function of the ambient temperature of the vehicle. Système selon la revendication 9, caractérisé en ce qu'il comporte un comparateur (26) qui compare la vitesse (N) de rotation du moteur thermique à une valeur de référence (VREF) qui est une fonction de la température et qui est d'autant plus grande que la température est basse et en ce que la coupure du moteur électrique du démarreur est commandée par le signal émis par ledit comparateur (26) lorsque la vitesse (N) de rotation du moteur thermique dépasse la vitesse de référence (VREF).System according to claim 9, characterized in that it comprises a comparator (26) which compares the speed (N) of rotation of the thermal engine with a reference value (V REF ) which is a function of the temperature and which is d '' the greater the lower the temperature and in that the shutdown of the electric motor of the starter is controlled by the signal emitted by said comparator (26) when the speed (N) of rotation of the heat engine exceeds the reference speed (V REF ).
EP19970401291 1996-06-11 1997-06-09 Cut-off control method and system for automobile starter motor Expired - Lifetime EP0812986B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9607212 1996-06-11
FR9607212A FR2749615B1 (en) 1996-06-11 1996-06-11 METHOD AND SYSTEM FOR CONTROLLING THE SHUTDOWN OF A MOTOR VEHICLE STARTER

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EP0812986A1 true EP0812986A1 (en) 1997-12-17
EP0812986B1 EP0812986B1 (en) 2003-03-12

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EP19970401291 Expired - Lifetime EP0812986B1 (en) 1996-06-11 1997-06-09 Cut-off control method and system for automobile starter motor

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EP (1) EP0812986B1 (en)
DE (1) DE69719605T2 (en)
ES (1) ES2194164T3 (en)
FR (1) FR2749615B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345554A (en) * 1979-11-19 1982-08-24 Hildreth Donald M Vehicle engine remote starter control and protective system
US4862010A (en) * 1987-05-28 1989-08-29 Mitsubishi Denki Kabushiki Kaisha Method of starting engine and apparatus therefor
US4994683A (en) * 1988-04-01 1991-02-19 Mitsubishi Denki Kabushiki Kaisha Starter protective device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345554A (en) * 1979-11-19 1982-08-24 Hildreth Donald M Vehicle engine remote starter control and protective system
US4862010A (en) * 1987-05-28 1989-08-29 Mitsubishi Denki Kabushiki Kaisha Method of starting engine and apparatus therefor
US4994683A (en) * 1988-04-01 1991-02-19 Mitsubishi Denki Kabushiki Kaisha Starter protective device

Also Published As

Publication number Publication date
FR2749615A1 (en) 1997-12-12
ES2194164T3 (en) 2003-11-16
EP0812986B1 (en) 2003-03-12
FR2749615B1 (en) 1998-08-28
DE69719605D1 (en) 2003-04-17
DE69719605T2 (en) 2003-10-09

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