EP3063401A1 - Motor vehicle with improved restarting - Google Patents

Motor vehicle with improved restarting

Info

Publication number
EP3063401A1
EP3063401A1 EP14793225.5A EP14793225A EP3063401A1 EP 3063401 A1 EP3063401 A1 EP 3063401A1 EP 14793225 A EP14793225 A EP 14793225A EP 3063401 A1 EP3063401 A1 EP 3063401A1
Authority
EP
European Patent Office
Prior art keywords
engine
temperature
electrical machine
rotating electrical
computer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14793225.5A
Other languages
German (de)
French (fr)
Other versions
EP3063401B1 (en
Inventor
Mehdi Besseghair
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 EP3063401A1 publication Critical patent/EP3063401A1/en
Application granted granted Critical
Publication of EP3063401B1 publication Critical patent/EP3063401B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/04—Parameters used for control of starting apparatus said parameters being related to the starter motor
    • F02N2200/045—Starter temperature or parameters related to it
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/12—Parameters used for control of starting apparatus said parameters being related to the vehicle exterior
    • F02N2200/122—Atmospheric temperature

Definitions

  • the invention relates to the stopping and restarting of combustion engines of motor vehicles, especially when they are repetitive as in the case of vehicles with automatic engine stop when stopping the movement of the vehicle.
  • Such vehicles are known by the Anglo-American name of "STT" for "Stop and Start” or “stop and start” in French.
  • the vehicle For a vehicle STT, when the engine is off, the vehicle enters the stop phase. Such a stop phase is followed by a restart using a rotating electrical machine such as an alternator-starter or a reversible alternator.
  • a rotating electrical machine such as an alternator-starter or a reversible alternator.
  • the vehicle ECUs need to have certain parameters of the rotating machine permanently in order to check its functionality.
  • certain parameters such as temperature are transmitted by the vehicle computers by retrieving this temperature information directly from the rotating machine. Because the rotating machines do not have memory, the parameters of the rotating machine are reset at each stop phase of the vehicle and the temperature information obtained at restart by the vehicle computer at the rotating machine is erroneous information .
  • the object of the invention is to provide a vehicle in which a reliable temperature value of the rotating machine is available in the vehicle at the restart of the latter.
  • An additional object of the invention is to provide such a vehicle in which this value is obtained by means that are inexpensive and easy to implement.
  • a motor vehicle comprising a combustion engine a motor computer configured to control at least one combustion parameter of the engine, a rotating electrical machine which rotating electrical machine comprises a sensor measuring a temperature of the rotary electrical machine, characterized in that the temperature sensor and the engine computer are configured such that at an extinction of the combustion engine the temperature sensor supplies the engine computer with a temperature value of the rotating electrical machine and the engine calculator makes an estimate of a temperature value of the rotating electrical machine reached by the rotating electrical machine at a restart of the combustion engine by said rotating electrical machine after said extinction of the combustion engine using for this estimate the temperature of the ma China electric rotating with the extinction of the combustion engine.
  • the engine computer is configured to estimate the value at restart of the temperature of the rotating electrical machine by using a value of extinction time of the combustion engine.
  • the vehicle comprises a vehicle computer (6) driving at least one parameter of a body of the vehicle which member is distinct from the combustion engine and the vehicle computer is configured to provide the value of engine shutdown time with combustion engine calculator.
  • the engine computer is configured to estimate the value at restart of the temperature of the rotating electrical machine using a value of ambient temperature.
  • the vehicle comprises a vehicle computer controlling at least one parameter of a vehicle member which member is distinct from the combustion engine and the vehicle computer is configured to provide the ambient temperature value to the engine computer.
  • the engine computer is configured to store at least one value indicative of a thermal behavior of the rotating electrical machine and establish from this value a temperature decreasing law of the rotating electrical machine as a function of time.
  • the engine computer and the rotating electrical machine are configured so that the engine computer provides the vehicle restart the estimated temperature of the rotating electrical machine.
  • the rotating electrical machine comprises a stator and the estimated temperature value of the rotating electrical machine as well as the temperature value of the rotating electrical machine at the extinction of the combustion engine are stator temperature values of the rotating electric machine.
  • the rotating electrical machine is a rotating machine of the combustion engine at startup.
  • the rotating electrical machine is an alternator-starter.
  • alternator-starter 1 and a motor unit 2.
  • the alternator-starter 1 is provided with a temperature sensor 3 which takes the temperature of the stator of the alternator-starter.
  • An engine calculator 4 drives the combustion parameters of the engine and in particular the quantity of fuel supplied to the combustion chambers at each engine cycle.
  • the engine computer 4 is connected to the stator temperature sensor 3 by a link 5 so that the stator temperature is supplied to the engine computer 4 in particular when the vehicle is in operation.
  • a vehicle calculator 6, also called BSI for "intelligent service housing" equips the present vehicle, which vehicle calculator 6 has the role of driving a number of vehicle components that are distinct from the combustion engine, and also to collect operating data of certain vehicle components other than the engine, such as air conditioning, lighting, battery organs.
  • the alternator-starter 1 constantly sends the engine computer 4 and the vehicle computer 6 the temperature of the stator.
  • the link 5 represented by a single line symbolizes here a LIN / CAN network of the vehicle for "Local Interconnect Network / Controller Area Network” according to the Anglo-American phrase corresponding to "local interconnection network / area network controller” in French .
  • the alternator-starter 1 therefore sends this temperature value continuously to the engine computer 4 and the vehicle computer 6 via the LIN / CAN network.
  • alternator-starter 1 sends a last temperature information in the last LIN / CAN frame, before switching off.
  • the engine computer 4 stores this information in the form of a mirror temperature during the entire standby phase of the vehicle, which mirror temperature will be used during the restart of the vehicle.
  • the memory of the engine computer 4 is used here to memorize the last temperature of the alternator-starter 1 rather than to redesign an alternator-starter with a clean memory.
  • the computers 4 and 6 are reset and the computer motor 4 asks the vehicle calculator 6 certain information such as the ambient temperature and the time of falling asleep of the vehicle, which are information available in the vehicle computer 6.
  • the engine computer 4 uses this information to calculate an estimated temperature of the stator of the alternator-starter 1. This calculation takes into account the thermal parameters of the alternator-starter 1 including for example its thermal resistivity and the type of metal that constitutes it. The engine computer 4 establishes from these parameters a thermal decay curve of the stator of the alternator-starter 1 in time. The calculated temperature is then sent to the alternator-starter 1 in the first wake-up frame of the LIN / CAN network symbolized by the link 5
  • the engine computer 4 therefore uses the stored temperature at the stop of the vehicle and the information provided by the vehicle calculator 6 at the restart of the vehicle to calculate an estimated temperature of the stator. The engine computer 4 then sends this estimated temperature to the alternator-starter 1. The alternator / starter 1 uses this temperature updated by the engine computer 4 as a reference to continue to continuously estimate its temperature and send the temperature information to the engine controller 4.
  • the engine computer 4 uses the memory of the engine computer 4 to save one or more parameters including the temperature of the alternator-starter 1 before the shutdown of the vehicle.
  • it is estimated in the engine computer 4 a theoretical temperature during restart to serve as a reference for the alternator-starter 1 when it is started.
  • the apparatus whose temperature is stored is a rotating electrical machine for driving the combustion engine for the purpose of starting it, such as an alternator-starter or a reversible alternator.
  • a rotating electrical machine for driving the combustion engine for the purpose of starting it, such as an alternator-starter or a reversible alternator.
  • it memorizes and estimates the temperature of a rotating electrical machine that can be of another nature, such as an electric propulsion engine of the vehicle, an electric power steering motor, or an electric air conditioning motor.
  • such a device solves the problem of the lack of read only memory or ROM memory for Read Only Memory according to the Anglo-American phrase on such rotating machines. It is of course possible to add memory in the rotating machine but for cost reasons, such a solution is of limited interest compared to the device described here which is based on a programming modification of the engine computer.

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

Abstract

The invention relates to a motor vehicle in which, on switching off the internal combustion engine (1.2,3.4), a temperature sensor (3) supplies an engine control unit (4) with a temperature value of a rotating electrical machine (1) and the engine control unit (4) estimates a value of the temperature of the rotating electric machine (1) attained by the rotating electrical machine (1) on a restart of the internal combustion engine (1.2,3.4).

Description

VEHICULE AUTOMOBILE A REDEMARRAGE AMELIORE  AUTOMOTIVE VEHICLE WITH IMPROVED RESTART
[0001 ] L'invention concerne l'arrêt et le redémarrage des moteurs à combustion de véhicules automobiles, notamment lorsque ceux-ci sont répétitifs comme dans le cas des véhicules à arrêt automatique du moteur lors des arrêts de déplacement du véhicule. De tels véhicules sont connus sous l'appellation anglo-américaine de « STT » pour « Stop and Start » ou « à arrêt et démarrage » en français.  The invention relates to the stopping and restarting of combustion engines of motor vehicles, especially when they are repetitive as in the case of vehicles with automatic engine stop when stopping the movement of the vehicle. Such vehicles are known by the Anglo-American name of "STT" for "Stop and Start" or "stop and start" in French.
[0002] Pour un véhicule STT, lorsque le moteur est éteint, le véhicule entre en phase d'arrêt. Une telle phase d'arrêt est suivie d'un redémarrage à l'aide d'une machine électrique tournante telle qu'un alterno-démarreur ou encore un alternateur réversible. Afin de garantir une prestation optimale, les calculateurs véhicule nécessitent d'avoir en permanence certains paramètres de la machine tournante afin de vérifier sa fonctionnalité. Aujourd'hui, certains paramètres comme la température sont transmis par les calculateurs véhicule en récupérant cette information de température directement auprès de la machine tournante. Du fait que les machines tournantes ne disposent pas de mémoire, les paramètres de la machine tournante se réinitialisent à chaque phase d'arrêt du véhicule et l'information de température obtenue au redémarrage par le calculateur véhicule auprès de la machine tournante est une information erronée.  For a vehicle STT, when the engine is off, the vehicle enters the stop phase. Such a stop phase is followed by a restart using a rotating electrical machine such as an alternator-starter or a reversible alternator. In order to guarantee optimal performance, the vehicle ECUs need to have certain parameters of the rotating machine permanently in order to check its functionality. Today, certain parameters such as temperature are transmitted by the vehicle computers by retrieving this temperature information directly from the rotating machine. Because the rotating machines do not have memory, the parameters of the rotating machine are reset at each stop phase of the vehicle and the temperature information obtained at restart by the vehicle computer at the rotating machine is erroneous information .
[0003] Le but de l'invention est de proposer un véhicule dans lequel une valeur fiable de température de la machine tournante soit disponible dans le véhicule au redémarrage de ce dernier. Un but additionnel de l'invention est de proposer un tel véhicule dans lequel cette valeur soit obtenue par des moyens qui soient peu coûteux et de mise en œuvre simple.  The object of the invention is to provide a vehicle in which a reliable temperature value of the rotating machine is available in the vehicle at the restart of the latter. An additional object of the invention is to provide such a vehicle in which this value is obtained by means that are inexpensive and easy to implement.
[0004] Ces buts sont atteints selon l'invention grâce à un véhicule automobile comprenant un moteur à combustion un calculateur moteur configuré pour piloter au moins un paramètre de combustion du moteur, une machine électrique tournante laquelle machine électrique tournante comprend un capteur mesurant une température de la machine électrique tournante, caractérisé en ce que le capteur de température et le calculateur moteur sont configurés de telle sorte qu'à une extinction du moteur à combustion le capteur de température fournit au calculateur moteur une valeur de température de la machine électrique tournante et le calculateur moteur réalise une estimation d'une valeur de température de la machine électrique tournante atteinte par la machine électrique tournante à un redémarrage du moteur à combustion par ladite machine électrique tournante postérieur à ladite extinction du moteur à combustion en utilisant pour cette estimation la température de la machine électrique tournante à l'extinction du moteur à combustion. [0005] Avantageusement, le calculateur moteur est configuré pour estimer la valeur au redémarrage de la température de la machine électrique tournante en utilisant une valeur de durée d'extinction du moteur à combustion. These objects are achieved according to the invention with a motor vehicle comprising a combustion engine a motor computer configured to control at least one combustion parameter of the engine, a rotating electrical machine which rotating electrical machine comprises a sensor measuring a temperature of the rotary electrical machine, characterized in that the temperature sensor and the engine computer are configured such that at an extinction of the combustion engine the temperature sensor supplies the engine computer with a temperature value of the rotating electrical machine and the engine calculator makes an estimate of a temperature value of the rotating electrical machine reached by the rotating electrical machine at a restart of the combustion engine by said rotating electrical machine after said extinction of the combustion engine using for this estimate the temperature of the ma China electric rotating with the extinction of the combustion engine. Advantageously, the engine computer is configured to estimate the value at restart of the temperature of the rotating electrical machine by using a value of extinction time of the combustion engine.
[0006] Avantageusement, le véhicule comprend un calculateur véhicule (6) pilotant au moins un paramètre d'un organe du véhicule lequel organe est distinct du moteur à combustion et le calculateur véhicule est configuré pour fournir la valeur de durée d'extinction du moteur à combustion au calculateur moteur.  Advantageously, the vehicle comprises a vehicle computer (6) driving at least one parameter of a body of the vehicle which member is distinct from the combustion engine and the vehicle computer is configured to provide the value of engine shutdown time with combustion engine calculator.
[0007] Avantageusement, le calculateur moteur est configuré pour estimer la valeur au redémarrage de la température de la machine électrique tournante en utilisant une valeur de température ambiante.  Advantageously, the engine computer is configured to estimate the value at restart of the temperature of the rotating electrical machine using a value of ambient temperature.
[0008] Avantageusement, le véhicule comprend un calculateur véhicule pilotant au moins un paramètre d'un organe du véhicule lequel organe est distinct du moteur à combustion et le calculateur véhicule est configuré pour fournir la valeur de température ambiante au calculateur moteur.  Advantageously, the vehicle comprises a vehicle computer controlling at least one parameter of a vehicle member which member is distinct from the combustion engine and the vehicle computer is configured to provide the ambient temperature value to the engine computer.
[0009] Avantageusement, le calculateur moteur est configuré pour mémoriser au moins une valeur indicative d'un comportement thermique de la machine électrique tournante et établir à partir de cette valeur une loi de décroissance de température de la machine électrique tournante en fonction du temps.  Advantageously, the engine computer is configured to store at least one value indicative of a thermal behavior of the rotating electrical machine and establish from this value a temperature decreasing law of the rotating electrical machine as a function of time.
[0010] Avantageusement, le calculateur moteur et la machine électrique tournante sont configurés pour que le calculateur moteur fournisse au redémarrage du véhicule la température estimée à la machine électrique tournante.  Advantageously, the engine computer and the rotating electrical machine are configured so that the engine computer provides the vehicle restart the estimated temperature of the rotating electrical machine.
[001 1 ] Avantageusement, la machine électrique tournante comporte un stator et la valeur estimée de température de la machine électrique tournante ainsi que la valeur de température de la machine électrique tournante à l'extinction du moteur à combustion sont des valeurs de température du stator de la machine électrique tournante.  [001 1] Advantageously, the rotating electrical machine comprises a stator and the estimated temperature value of the rotating electrical machine as well as the temperature value of the rotating electrical machine at the extinction of the combustion engine are stator temperature values of the rotating electric machine.
[0012] Avantageusement, la machine électrique tournante est une machine d'entraînement en rotation du moteur à combustion au démarrage.  Advantageously, the rotating electrical machine is a rotating machine of the combustion engine at startup.
[0013] Avantageusement, la machine électrique tournante est un alterno-démarreur.  Advantageously, the rotating electrical machine is an alternator-starter.
[0014] D'autres caractéristiques, buts et avantages de l'invention apparaîtront à la lecture de la description qui va suivre, faite en référence à la figure unique annexée, qui représente un ensemble de propulsion et de démarrage d'un véhicule automobile selon l'invention.  Other features, objects and advantages of the invention will appear on reading the description which follows, with reference to the single appended figure, which shows a set of propulsion and starting of a motor vehicle according to the invention.
[0015] On a représenté sur la figure annexée un alterno-démarreur 1 et un bloc moteur 2. L'alterno-démarreur 1 est muni d'un capteur de température 3 lequel prélève la température du stator de l'alterno-démarreur. Un calculateur moteur 4 pilote les paramètres de combustion du moteur et notamment la quantité de carburant approvisionnée aux chambres de combustion à chaque cycle moteur. There is shown in the accompanying figure an alternator-starter 1 and a motor unit 2. The alternator-starter 1 is provided with a temperature sensor 3 which takes the temperature of the stator of the alternator-starter. An engine calculator 4 drives the combustion parameters of the engine and in particular the quantity of fuel supplied to the combustion chambers at each engine cycle.
[0016] Le calculateur moteur 4 est connecté au capteur de température de stator 3 par une liaison 5 de telle sorte que la température de stator est fournie au calculateur moteur 4 notamment lorsque le véhicule est en fonctionnement. Un calculateur véhicule 6, également appelé BSI pour « boîtier de servitude intelligent» équipe le présent véhicule, lequel calculateur véhicule 6 a pour rôle de piloter un certain nombre d'organes du véhicules qui sont distincts du moteur à combustion, et également de prélever des données de fonctionnement de certains organes du véhicule autres que le moteur, tels qu'organes de climatisation, d'éclairage, batterie. Ainsi, à moteur tournant, l'alterno- démarreur 1 envoie en permanence au calculateur moteur 4 et au calculateur véhicule 6 la température du stator. La liaison 5 représentée par un trait simple symbolise ici un réseau LIN/CAN du véhicule pour «Local Interconnect Network / Controller Area Network » selon la locution anglo-américaine correspondant à « réseau d'interconnexion locale / réseau de zone à contrôleur » en français. L'alterno-démarreur 1 envoie donc cette valeur de température en continu au calculateur moteur 4 et au calculateur véhicule 6 via le réseau LIN/CAN. The engine computer 4 is connected to the stator temperature sensor 3 by a link 5 so that the stator temperature is supplied to the engine computer 4 in particular when the vehicle is in operation. A vehicle calculator 6, also called BSI for "intelligent service housing" equips the present vehicle, which vehicle calculator 6 has the role of driving a number of vehicle components that are distinct from the combustion engine, and also to collect operating data of certain vehicle components other than the engine, such as air conditioning, lighting, battery organs. Thus, with the engine running, the alternator-starter 1 constantly sends the engine computer 4 and the vehicle computer 6 the temperature of the stator. The link 5 represented by a single line symbolizes here a LIN / CAN network of the vehicle for "Local Interconnect Network / Controller Area Network" according to the Anglo-American phrase corresponding to "local interconnection network / area network controller" in French . The alternator-starter 1 therefore sends this temperature value continuously to the engine computer 4 and the vehicle computer 6 via the LIN / CAN network.
[0017] Lors d'un arrêt du véhicule, que cet arrêt soit dû à un arrêt automatique du moteur à combustion en réponse à une immobilisation physique du véhicule, ou qu'il soit dû à une extinction à la commande manuelle par le conducteur, l'alterno-démarreur 1 envoie une dernière information de température dans la dernière trame LIN/CAN, avant de se mettre à l'arrêt. Le calculateur moteur 4 mémorise cette information sous forme d'une température miroir durant toute la phase de veille du véhicule, laquelle température miroir va être mise à profit lors du redémarrage du véhicule. Ainsi on utilise ici la mémoire du calculateur moteur 4 pour mémoriser la dernière température de l'alterno-démarreur 1 plutôt que de reconcevoir un alterno-démarreur avec une mémoire propre.  During a stop of the vehicle, that this stop is due to an automatic shutdown of the combustion engine in response to a physical immobilization of the vehicle, or that it is due to extinction at the manual control by the driver, alternator-starter 1 sends a last temperature information in the last LIN / CAN frame, before switching off. The engine computer 4 stores this information in the form of a mirror temperature during the entire standby phase of the vehicle, which mirror temperature will be used during the restart of the vehicle. Thus, the memory of the engine computer 4 is used here to memorize the last temperature of the alternator-starter 1 rather than to redesign an alternator-starter with a clean memory.
[0018] Au redémarrage du véhicule, soit par redémarrage automatique au moyen de l'alterno-démarreur 1 soit par redémarrage à la commande manuelle de redémarrage par le conducteur au moyen d'un démarreur, les calculateurs 4 et 6 se réinitialisent et le calculateur moteur 4 demande au calculateur véhicule 6 certaines informations comme la température ambiante et le temps d'endormissement du véhicule, lesquelles sont des informations disponibles dans le calculateur véhicule 6.  When the vehicle is restarted, either by automatic restart by means of the alternator-starter 1 or by restarting at the manual control of restart by the driver by means of a starter, the computers 4 and 6 are reset and the computer motor 4 asks the vehicle calculator 6 certain information such as the ambient temperature and the time of falling asleep of the vehicle, which are information available in the vehicle computer 6.
[0019] Le calculateur moteur 4 utilise ces informations pour calculer une température estimée du stator de l'alterno-démarreur 1 . Ce calcul prend ici en compte les paramètres thermiques de l'alterno-démarreur 1 incluant par exemple sa résistivité thermique et le type de métal qui le constitue. Le calculateur moteur 4 établit à partir de ces paramètres une courbe de décroissance thermique du stator de l'alterno-démarreur 1 dans le temps. La température calculée est ensuite envoyée à l'alterno-démarreur 1 dans la première trame de réveil du réseau LIN/CAN symbolisé par la liaison 5 The engine computer 4 uses this information to calculate an estimated temperature of the stator of the alternator-starter 1. This calculation takes into account the thermal parameters of the alternator-starter 1 including for example its thermal resistivity and the type of metal that constitutes it. The engine computer 4 establishes from these parameters a thermal decay curve of the stator of the alternator-starter 1 in time. The calculated temperature is then sent to the alternator-starter 1 in the first wake-up frame of the LIN / CAN network symbolized by the link 5
[0020] Le calculateur moteur 4 utilise donc la température mémorisée à l'arrêt du véhicule ainsi que les informations fournies par le calculateur véhicule 6 au redémarrage du véhicule pour calculer une température estimée du stator. Le calculateur moteur 4 envoie ensuite cette température estimée à l'alterno-démarreur 1 . L'alterno-démarreur 1 utilise cette température mise à jour par le calculateur moteur 4 comme référence pour continuer à estimer en continu sa température et envoyer l'information de température au contrôleur moteur 4.  The engine computer 4 therefore uses the stored temperature at the stop of the vehicle and the information provided by the vehicle calculator 6 at the restart of the vehicle to calculate an estimated temperature of the stator. The engine computer 4 then sends this estimated temperature to the alternator-starter 1. The alternator / starter 1 uses this temperature updated by the engine computer 4 as a reference to continue to continuously estimate its temperature and send the temperature information to the engine controller 4.
[0021 ] Ainsi, on utilise ici la mémoire du calculateur moteur 4 pour sauvegarder un ou plusieurs paramètres dont la température de l'alterno-démarreur 1 avant la mise à l'arrêt du véhicule. De plus, on estime dans le calculateur moteur 4 une température théorique lors du redémarrage afin de servir de référence pour l'alterno-démarreur 1 lors de sa mise en route.  Thus, it uses the memory of the engine computer 4 to save one or more parameters including the temperature of the alternator-starter 1 before the shutdown of the vehicle. In addition, it is estimated in the engine computer 4 a theoretical temperature during restart to serve as a reference for the alternator-starter 1 when it is started.
[0022] On a décrit ici un mode de réalisation dans lequel l'appareillage dont on mémorise la température est une machine électrique tournante d'entraînement du moteur à combustion aux fins de démarrage de celui-ci, tel qu'un alterno-démarreur ou un alternateur réversible. En variante, on mémorise et estime la température d'une machine électrique tournante qui peut être d'une autre nature, telle qu'un moteur électrique de propulsion du véhicule, un moteur électrique de direction assistée, ou encore un moteur électrique de climatisation. Dans de tels cas également, un tel dispositif permet de résoudre le problème de l'absence de mémoire morte ou mémoire ROM pour Read Only Memory selon la locution anglo-américaine sur de telles machines tournantes. Il est bien sûr possible d'ajouter de la mémoire dans la machine tournante mais pour des questions de coûts, une telle solution présente un intérêt limité par rapport au dispositif décrit ici qui repose sur une modification de programmation du calculateur moteur.  An embodiment has been described here in which the apparatus whose temperature is stored is a rotating electrical machine for driving the combustion engine for the purpose of starting it, such as an alternator-starter or a reversible alternator. Alternatively, it memorizes and estimates the temperature of a rotating electrical machine that can be of another nature, such as an electric propulsion engine of the vehicle, an electric power steering motor, or an electric air conditioning motor. In such cases also, such a device solves the problem of the lack of read only memory or ROM memory for Read Only Memory according to the Anglo-American phrase on such rotating machines. It is of course possible to add memory in the rotating machine but for cost reasons, such a solution is of limited interest compared to the device described here which is based on a programming modification of the engine computer.

Claims

REVENDICATIONS
1 . Véhicule automobile comprenant un moteur à combustion (1 ,2,3,4) un calculateur moteur (4) configuré pour piloter au moins un paramètre de combustion du moteur (1 ,2,3,4), une machine électrique tournante (1 ) laquelle machine électrique tournante (1 ) comprend un capteur (3) mesurant une température de la machine électrique tournante (1 ), caractérisé en ce que le capteur de température (3) et le calculateur moteur (4) sont configurés de telle sorte qu'à une extinction du moteur à combustion (1 ,2,3,4) le capteur de température (3) fournit au calculateur moteur (4) une valeur de température de la machine électrique tournante (1 ) et le calculateur moteur (4) réalise une estimation d'une valeur de température de la machine électrique tournante (1 ) atteinte par la machine électrique tournante (1 ) à un redémarrage du moteur à combustion (1 ,2,3,4) par ladite machine électrique tournante (1 ) postérieur à ladite extinction du moteur à combustion (1 ,2,3,4) en utilisant pour cette estimation la température de la machine électrique tournante (1 ) à l'extinction du moteur à combustion (1 ,2,3,4). 1. Motor vehicle comprising a combustion engine (1, 2, 3, 4) an engine control unit (4) configured to control at least one combustion parameter of the engine (1, 2, 3, 4), a rotating electrical machine (1) which rotary electric machine (1) comprises a sensor (3) measuring a temperature of the rotating electrical machine (1), characterized in that the temperature sensor (3) and the engine computer (4) are configured so that at an extinction of the combustion engine (1, 2,3,4) the temperature sensor (3) supplies the engine computer (4) with a temperature value of the rotating electrical machine (1) and the engine computer (4) carries out an estimate of a temperature value of the rotating electrical machine (1) reached by the rotating electrical machine (1) at a restart of the combustion engine (1, 2,3,4) by said rotating electric machine (1) posterior at said extinction of the combustion engine (1, 2,3,4) in using for this estimation the temperature of the rotating electrical machine (1) at the extinction of the combustion engine (1, 2,3,4).
2. Véhicule automobile selon la revendication 1 , caractérisé en ce que le calculateur moteur (4) est configuré pour estimer la valeur au redémarrage de la température de la machine électrique tournante (1 ) en utilisant une valeur de durée d'extinction du moteur à combustion (1 ,2,3,4).  2. Motor vehicle according to claim 1, characterized in that the engine computer (4) is configured to estimate the value at restart of the temperature of the rotating electrical machine (1) by using a value of the duration of extinction of the engine to combustion (1, 2,3,4).
3. Véhicule automobile selon la revendication précédente, caractérisé en ce qu'il comprend un calculateur véhicule (6) pilotant au moins un paramètre d'un organe du véhicule lequel organe est distinct du moteur à combustion (1 ,2,3,4) et le calculateur véhicule (6) est configuré pour fournir la valeur de durée d'extinction du moteur à combustion (1 ,2,3,4) au calculateur moteur (4).  3. Motor vehicle according to the preceding claim, characterized in that it comprises a vehicle computer (6) controlling at least one parameter of a body of the vehicle which member is distinct from the combustion engine (1, 2,3,4) and the vehicle computer (6) is configured to provide the extinction time value of the combustion engine (1, 2,3,4) to the engine computer (4).
4. Véhicule automobile selon l'une quelconque des revendications précédentes, caractérisé en ce que le calculateur moteur (4) est configuré pour estimer la valeur au redémarrage de la température de la machine électrique tournante (1 ) en utilisant une valeur de température ambiante.  4. Motor vehicle according to any one of the preceding claims, characterized in that the engine computer (4) is configured to estimate the value at restart of the temperature of the rotating electrical machine (1) using a value of ambient temperature.
5. Véhicule automobile selon la revendication précédente, caractérisé en ce qu'il comprend un calculateur véhicule (6) pilotant au moins un paramètre d'un organe du véhicule lequel organe est distinct du moteur à combustion (1 ,2,3,4) et le calculateur véhicule (6) est configuré pour fournir la valeur de température ambiante au calculateur moteur (4).  5. Motor vehicle according to the preceding claim, characterized in that it comprises a vehicle computer (6) controlling at least one parameter of a body of the vehicle which member is distinct from the combustion engine (1, 2,3,4) and the vehicle computer (6) is configured to supply the ambient temperature value to the engine computer (4).
6. Véhicule automobile selon l'une quelconque des revendications précédentes, caractérisé en ce que le calculateur moteur (4) est configuré pour mémoriser au moins une valeur indicative d'un comportement thermique de la machine électrique tournante (1 ) et établir à partir de cette valeur une loi de décroissance de température de la machine électrique tournante (1 ) en fonction du temps. 6. Motor vehicle according to any one of the preceding claims, characterized in that the engine computer (4) is configured to store at least one indicative value of a thermal behavior of the rotating electrical machine (1) and establish from this value a temperature decreasing law of the rotating electrical machine (1) as a function of time.
7. Véhicule automobile selon l'une quelconque des revendications précédentes, caractérisé en ce que le calculateur moteur (4) et la machine électrique tournante (1 ) sont configurés pour que le calculateur moteur (4) fournisse au redémarrage du véhicule la température estimée à la machine électrique tournante (1 ).  7. Motor vehicle according to any one of the preceding claims, characterized in that the engine computer (4) and the rotating electrical machine (1) are configured so that the engine computer (4) provides the vehicle restart the temperature estimated at the rotating electric machine (1).
8. Véhicule automobile selon l'une quelconque des revendications précédentes, caractérisé en ce que la machine électrique tournante (1 ) comporte un stator et la valeur estimée de température de la machine électrique tournante (1 ) ainsi que la valeur de température de la machine électrique tournante (1 ) à l'extinction du moteur à combustion (1 ,2,3,4) sont des valeurs de température du stator de la machine électrique tournante (1 ).  8. Motor vehicle according to any one of the preceding claims, characterized in that the rotating electrical machine (1) comprises a stator and the estimated temperature value of the rotating electrical machine (1) and the temperature value of the machine. rotating electric motor (1) at the extinction of the combustion engine (1, 2,3,4) are stator temperature values of the rotary electric machine (1).
9. Véhicule automobile selon l'une quelconque des revendications précédentes, caractérisé en ce que la machine électrique tournante (1 ) est une machine d'entraînement en rotation du moteur à combustion (1 ,2,3,4) au démarrage.  9. Motor vehicle according to any one of the preceding claims, characterized in that the rotating electrical machine (1) is a machine for rotating the combustion engine (1, 2,3,4) at startup.
10. Véhicule automobile selon l'une quelconque des revendications précédentes, caractérisé en ce que la machine électrique tournante (1 ) est un alterno-démarreur.  10. Motor vehicle according to any one of the preceding claims, characterized in that the rotating electrical machine (1) is an alternator-starter.
EP14793225.5A 2013-10-29 2014-09-26 Motor vehicle with improved restarting Active EP3063401B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1360573A FR3012528B1 (en) 2013-10-29 2013-10-29 AUTOMOTIVE VEHICLE WITH IMPROVED RESTART
PCT/FR2014/052429 WO2015063384A1 (en) 2013-10-29 2014-09-26 Motor vehicle with improved restarting

Publications (2)

Publication Number Publication Date
EP3063401A1 true EP3063401A1 (en) 2016-09-07
EP3063401B1 EP3063401B1 (en) 2021-05-19

Family

ID=49876879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14793225.5A Active EP3063401B1 (en) 2013-10-29 2014-09-26 Motor vehicle with improved restarting

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EP (1) EP3063401B1 (en)
FR (1) FR3012528B1 (en)
WO (1) WO2015063384A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3074104A1 (en) * 2017-11-30 2019-05-31 Orange PREDICTIVE ADJUSTMENT MOTOR, MOTOR CONTROLLER AND AUTOMATIC MOTOR ADJUSTMENT METHOD

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946808A1 (en) * 1999-09-29 2001-04-19 Bosch Gmbh Robert Electric starter device for an internal combustion engine
WO2006125872A1 (en) * 2005-05-26 2006-11-30 Renault Trucks Method of controlling power supply to an electric starter
US7631626B1 (en) * 2008-08-04 2009-12-15 Detroit Diesel Corporation Method to protect starter from overheating
US7743649B1 (en) * 2008-12-18 2010-06-29 Gm Global Technology Operations, Inc. Cranking capability estimation for a vehicular starting system
KR101286823B1 (en) * 2009-12-31 2013-07-17 현대모비스 주식회사 Protecting method of motor driven steering system from overheat

Also Published As

Publication number Publication date
EP3063401B1 (en) 2021-05-19
FR3012528A1 (en) 2015-05-01
FR3012528B1 (en) 2018-01-12
WO2015063384A1 (en) 2015-05-07

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