EP1924459A1 - System for driving electrical appliances associated with a heat engine - Google Patents

System for driving electrical appliances associated with a heat engine

Info

Publication number
EP1924459A1
EP1924459A1 EP06808313A EP06808313A EP1924459A1 EP 1924459 A1 EP1924459 A1 EP 1924459A1 EP 06808313 A EP06808313 A EP 06808313A EP 06808313 A EP06808313 A EP 06808313A EP 1924459 A1 EP1924459 A1 EP 1924459A1
Authority
EP
European Patent Office
Prior art keywords
generator
engine
equipment
heat engine
crankshaft
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.)
Ceased
Application number
EP06808313A
Other languages
German (de)
French (fr)
Inventor
Claudiu Vasilescu
Arnaud De Vries
Cédric Plasse
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.)
Valeo Equipements Electriques Moteur SAS
Original Assignee
Valeo Equipements Electriques Moteur SAS
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 Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP1924459A1 publication Critical patent/EP1924459A1/en
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/08—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of non-mechanically driven auxiliary apparatus

Definitions

  • the present invention relates to a drive system for various equipment and accessories associated with a heat engine connected to a mechanical transmission line, in particular a drive system for the equipment of a motor vehicle.
  • An object of the invention is to provide a drive system of various equipment and accessories associated with a heat engine, according to an arrangement for improving the compactness of the engine.
  • the invention proposes a system for driving various equipment and accessories by a generator function, associated with a heat engine comprising a crankshaft to which a mechanical transmission line is connected, characterized alone.
  • the generator function is mechanically connected to the mechanical power generated by the heat engine.
  • generating function means any generator or set of generators producing electricity from a mechanical power, such as the engine or any mechanical element involved in the setting in motion of the vehicle such as the gearbox , the wheels or the bridge.
  • Said equipment or accessories consuming energy external to the heat engine are electrically powered and connected to an electrical network comprising one or more electrical generators mechanically driven by the heat engine, such as for example an alternator or an alternator-starter.
  • the generators will be located in close proximity to the engine, so that the overall size of the engine can be significantly reduced.
  • the electric motors that drive said equipment or said accessories can be arranged where you want in the vehicle, it frees these electric motors from thermal stresses due to the proximity of the engine.
  • the drive of the equipment and accessories by electric motors makes it possible to adapt the driving speed of said electric motors according to optimal operating conditions of the corresponding equipment or accessories whatever the speed of rotation of the motor, whereas a mechanical drive by a belt associated with the crankshaft made the rotation speed of the equipment dependent on the speed of rotation of the motor, which forces to size accordingly.
  • the electric generators are connected to a point of the transmission line downstream of the crankshaft. It is then possible to completely remove the pulley attached to the end of the crankshaft so that the size of the engine is further reduced.
  • the heat engine comprises electromagnetic actuators for the electromagnetic valves. This eliminates the timing chain and the corresponding sprockets, which further improves the compactness of the engine.
  • At least one generator comprises variable ratio drive means, one can thus choose the gear ratio that is desired for driving the electric motor and thus optimize the latter according to the desired power.
  • FIG. 1 is a schematic representation illustrating the various possible implementations of electric generators in connection with a heat engine connected to a mechanical transmission line
  • FIG. 2 is a schematic representation of an embodiment of an electrical network in relation to a system according to the invention.
  • the invention relates to a drive system for various equipment associated with a heat engine 1 comprising a crankshaft 2 to which is connected a mechanical transmission line generally designated 3 comprising in the illustrated embodiment, a steering wheel inertia 4, a clutch 5, a gearbox 6 having a primary shaft 7 and a secondary shaft 8, and a bridge 9 for the mechanical drive of the wheels 10 of a vehicle.
  • a mechanical transmission line generally designated 3 comprising in the illustrated embodiment, a steering wheel inertia 4, a clutch 5, a gearbox 6 having a primary shaft 7 and a secondary shaft 8, and a bridge 9 for the mechanical drive of the wheels 10 of a vehicle.
  • the illustrated transmission line comprises only mechanical components
  • the expression "mechanical transmission line” also covers, according to the invention, a transmission line comprising a hydraulic component such as a converter in the case of an automatic gearbox, or an electromagnetic clutch.
  • the system comprises one or more generators with the general reference 1 1 in Figure 2, and the specific references 1 1 .1, 1 1 .2, 1 1 .3 ... in Figure 1 which illustrates the possible implantations, and mechanical drive modes.
  • the generator 1 1 .1 is fixed on the side of the engine block and is rotated in the traditional manner by a belt 12 passing over a pulley 13 fixed to the crankshaft 2;
  • the generator 1 1 .2 is fixed to the engine block and is driven by a pinion 14 associated with a variable speed gear box 36, driven by a management unit, not represented as a function of the speed of rotation of the engine, to operate the 1 1 .2 generator in an optimum speed range regardless of the motor rotation speed.
  • the pinion 14 meshes with the ring gear 15 fixed to the flywheel 4.
  • the generator 1 1 .3 is a generator-pancake whose rotor is fixed to the flywheel 4 and the stator is fixed to the engine block; the generator 1 1 .4 is fixed to the gearbox and is driven by a belt 16 passing over a pulley 17 fixed to the flywheel 4; the generator 1 1 .5 is also a generator-pancake whose rotor is fixed to the input shaft of the gearbox 6 and whose stator is fixed to the gearbox 6.
  • the generator 1 1 .6 is driven by a pinion 18 meshing with a pinion 19 carried by the primary shaft 7; the generator 1 1 .7 is driven by a pinion 20 meshing with a pinion 21 carried by the secondary shaft 8; the generator 1 1 .8 is driven by a pinion 22 meshing with the bridge 9; the generator 1 1 .9 is mounted on a wheel shaft and the generator 1 1 .10 is integrated in a wheel.
  • the electric generator or generators 1 1 are connected to an electrical network comprising a diode bridge 23 connected in a manner known per se to a high voltage accumulator 24 and a continuous / DC reversible converter 25 it itself connected to a low voltage accumulator 26.
  • the network also comprises a not shown management member ensuring the operation of the network according to the demand from equipment connected to the network.
  • the generator (s) 1 1 serve not only to power equipment that has traditionally operated with electricity, such as lamps 27, audio system 28, windscreen wipers 29, starter 35 or seat heating.
  • the location of the generator (s) 1 1 is preferably chosen to improve the compactness of the motor-transmission unit.
  • the invention has been illustrated in Fig. 1 with a generator 1 1 .1 driven by a pulley 13 attached to one end of the crankshaft 2 projecting from the engine block, it is preferable to implement an implementation at a point of the transmission line downstream of the crankshaft, which allows to remove the pulley 13.
  • the generator or generators are connected to the flywheel 4, the primary shaft 7 of the gearbox or at an intermediate point between the flywheel and the input shaft to benefit from a drive of the generators from the moment the engine is running even when the vehicle is stopped.
  • the system according to the invention not only has the advantage of improving the compactness of the engine block but also makes it possible to operate the equipment at its optimum speed whatever the speed of rotation of the engine. , which improves the efficiency of the equipment and therefore reduces their size.
  • the power supply of the equipment makes it possible to arrange the latter in an optimized manner with respect to the function they perform or in relation to the needs of their cooling. This minimizes the risk of deterioration usually resulting from the very high temperature under the hood.
  • the system according to the invention also applies to a motor whose valves are controlled in a traditional way by a shaft. to cam, the compactness of the motor is then reduced due to the drive of the camshaft by a timing chain.
  • the given examples of implantation of the generators are not limiting, any more than the drive means of these generators.
  • a variable drive ratio can be applied to each of the generators depending on its location and the drive ratio can be discretely or continuously variable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

The invention concerns a system for driving electrical appliances and accessories via a generating function associated with a heat engine comprising a crankshaft, wherein all the consuming appliances (31-34) usually driven by a belt passing on a pulley fixed to the crankshaft are electrically powered and connected to an electric power system including one or more electric generators (11) mechanically driven by the heat engine.

Description

Système d'entraînement électrique d'équipements associés à un moteur thermique Electrical drive system for equipment associated with a heat engine
La présente invention concerne un système d'entraînement de divers équipements et accessoires associés à un moteur thermique relié à une ligne de transmission mécanique, en particulier un système d'entraînement des équipements d'un véhicule automobile.The present invention relates to a drive system for various equipment and accessories associated with a heat engine connected to a mechanical transmission line, in particular a drive system for the equipment of a motor vehicle.
ARRIERE PLAN DE L'INVENTION On sait que la recherche d'un accroissement du confort des véhicules automobiles entraîne un développement du nombre des équipements et d'accessoires dont ces véhicules automobiles sont équipés, en particulier un compresseur pour le système de climatisation ou une pompe d'alimentation en fluide hydraulique du système de direction assistée. Ces équipements s'ajou- tent aux équipements traditionnels tels qu'une pompe à eau ou un générateur électrique.BACKGROUND OF THE INVENTION It is known that the search for an increase in the comfort of motor vehicles leads to an increase in the number of equipment and accessories these motor vehicles are equipped with, in particular a compressor for the air conditioning system or a pump. Hydraulic fluid supply of the power steering system. This equipment complements traditional equipment such as a water pump or an electric generator.
Traditionnellement ces équipements et certains accessoires sont entraînés en rotation par une courroie passant sur une poulie fixée à une extrémité du vilebrequin du moteur thermique. Par ailleurs, on sait que pour augmenter le volume disponible à l'intérieur de l'habitacle du véhicule sans augmenter ses dimensions extérieures, on recherche une compacité accrue sous le capot moteur tout en respectant des normes de sécurité qui imposent une distance minimale entre le bloc moteur et les parois du compartiment moteur. Cette recherche d'une compacité accrue est incompatible avec le développement des équipements qui, pour pouvoir être entraînés par une courroie associée au vilebrequin, doivent tous être montés à proximité de l'extrémité du moteur sur laquelle débouche le vilebrequin.Traditionally this equipment and some accessories are rotated by a belt passing on a pulley fixed to one end of the crankshaft of the engine. Furthermore, it is known that to increase the available volume inside the passenger compartment without increasing its external dimensions, it seeks increased compactness under the bonnet while respecting safety standards that impose a minimum distance between the vehicle. engine block and engine compartment walls. This search for increased compactness is incompatible with the development of equipment which, in order to be driven by a belt associated with the crankshaft, must all be mounted near the end of the engine on which the crankshaft opens.
Il est également connu pour diverses raisons d'entraîner certains équipements au moyen d'un moteur électrique relié au réseau électrique du véhicule. En particulier, il est connu de réaliser une direction assistée électrique afin de pouvoir disposer l'équipement correspondant à proximité immédiate de la tringlerie de direction. Ces dispositions restent toutefois ponctuelles et ne diminuent donc pas de façon sensible l'espace occupé par les équipements associés au bloc moteur.It is also known for various reasons to drive certain equipment by means of an electric motor connected to the vehicle electrical network. In particular, it is known to achieve an electric power steering in order to have the corresponding equipment in the immediate vicinity of the steering linkage. These provisions, however, remain punctual and therefore not significantly reduce the space occupied by the equipment associated with the engine block.
OBJET DE L'INVENTIONOBJECT OF THE INVENTION
Un but de l'invention est de proposer un système d'entraînement de divers équipements et accessoires associés à un moteur thermique, selon un agencement permettant d'améliorer la compacité du moteur thermique.An object of the invention is to provide a drive system of various equipment and accessories associated with a heat engine, according to an arrangement for improving the compactness of the engine.
BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION
En vue de la réalisation de ce but, on propose selon l'invention, un système d'entraînement de divers équipements et accessoires par une fonction générateur, associés à un moteur thermique comprenant un vilebrequin auquel est reliée une ligne de transmission mécanique, caractérisé seule la fonction générateur est relié mécaniquement à la puissance mécanique générée par le moteur thermique. En entend par fonction générateur tout générateur ou ensemble de générateurs produisant de l'électricité à partir d'une puissance mé- canique, tel que le moteur thermique ou tout élément mécanique participant à la mise en mouvement du véhicule comme par exemple la boite de vitesses, les roues ou le pont. Lesdits équipements ou accessoires consommateurs d'énergie externes au moteur thermique sont alimentés électriquement et reliés à un réseau électrique comportant un ou plusieurs générateurs électriques entraînés mécaniquement par le moteur thermique, comme par exemple un alternateur ou un alterno-démarreur.With a view to achieving this object, the invention proposes a system for driving various equipment and accessories by a generator function, associated with a heat engine comprising a crankshaft to which a mechanical transmission line is connected, characterized alone. the generator function is mechanically connected to the mechanical power generated by the heat engine. By generating function means any generator or set of generators producing electricity from a mechanical power, such as the engine or any mechanical element involved in the setting in motion of the vehicle such as the gearbox , the wheels or the bridge. Said equipment or accessories consuming energy external to the heat engine are electrically powered and connected to an electrical network comprising one or more electrical generators mechanically driven by the heat engine, such as for example an alternator or an alternator-starter.
Ainsi, seuls les générateurs seront implantés à proximité immédiate du moteur thermique, de sorte que l'encombrement global du moteur thermique peut être considérablement réduit. Les moteurs électriques qui entraînent les- dits équipement ou lesdits accessoires peuvent être disposés où l'on veut dans le véhicule, cela permet d'affranchir ces moteurs électriques des contraintes thermiques dues à la proximité du moteur thermique. En outre, l'entraînement des équipements et accessoires par des moteurs électriques permet d'adapter la vitesse d'entraînement desdits moteurs électriques selon des conditions op- timales de fonctionnement des équipements ou accessoires correspondants quelle que soit la vitesse de rotation du moteur alors qu'un entraînement mécanique par une courroie associée au vilebrequin rendait la vitesse de rotation des équipements tributaire de la vitesse de rotation du moteur, ce qui oblige à les dimensionner en conséquence.Thus, only the generators will be located in close proximity to the engine, so that the overall size of the engine can be significantly reduced. The electric motors that drive said equipment or said accessories can be arranged where you want in the vehicle, it frees these electric motors from thermal stresses due to the proximity of the engine. In addition, the drive of the equipment and accessories by electric motors makes it possible to adapt the driving speed of said electric motors according to optimal operating conditions of the corresponding equipment or accessories whatever the speed of rotation of the motor, whereas a mechanical drive by a belt associated with the crankshaft made the rotation speed of the equipment dependent on the speed of rotation of the motor, which forces to size accordingly.
Selon une version avantageuse de l'invention, les générateurs électriques sont reliés à un point de la ligne de transmission en aval du vilebrequin. II est alors possible de supprimer totalement la poulie fixée à l'extrémité du vilebrequin de sorte que l'encombrement du moteur thermique est encore réduit.According to an advantageous version of the invention, the electric generators are connected to a point of the transmission line downstream of the crankshaft. It is then possible to completely remove the pulley attached to the end of the crankshaft so that the size of the engine is further reduced.
Selon un mode de réalisation préféré de l'invention, le moteur thermique comporte des actionneurs électromagnétiques pour les soupapes électromagnétiques. Ainsi la chaîne de distribution et les pignons correspondants sont supprimés, ce qui améliore encore la compacité du moteur.According to a preferred embodiment of the invention, the heat engine comprises electromagnetic actuators for the electromagnetic valves. This eliminates the timing chain and the corresponding sprockets, which further improves the compactness of the engine.
Selon une variante de réalisation, au moins un générateur comporte des moyens d'entraînement à rapport variable, on peut ainsi choisir le rapport de démultiplication que l'on souhaite pour l'entraînement du moteur électrique et ainsi optimiser ce dernier suivant la puissance désirée. BREVE DESCRIPTION DES DESSINSAccording to an alternative embodiment, at least one generator comprises variable ratio drive means, one can thus choose the gear ratio that is desired for driving the electric motor and thus optimize the latter according to the desired power. BRIEF DESCRIPTION OF THE DRAWINGS
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui suit des différentes possibilités de réalisation de l'invention en relation avec les figures ci-jointes parmi lesquelles :Other features and advantages of the invention will appear on reading the following description of the various embodiments of the invention in relation to the attached figures, among which:
- la figure 1 est une représentation schématique illustrant les diffé- rentes implantations possibles de générateurs électriques en relation avec un moteur thermique relié à une ligne de transmission mécanique,FIG. 1 is a schematic representation illustrating the various possible implementations of electric generators in connection with a heat engine connected to a mechanical transmission line,
- la figure 2 est une représentation schématique d'un mode de réalisation de réseau électrique en relation avec un système selon l'invention.FIG. 2 is a schematic representation of an embodiment of an electrical network in relation to a system according to the invention.
DESCRIPTION DETAILLEE DE L'INVENTION L'invention concerne un système d'entraînement de divers équipements associés à un moteur thermique 1 comprenant un vilebrequin 2 auquel est reliée une ligne de transmission mécanique généralement désignée en 3 comprenant dans le mode de réalisation illustré, un volant d'inertie 4, un embrayage 5, une boîte de vitesses 6 ayant un arbre primaire 7 et un arbre se- condaire 8, et un pont 9 pour assurer l'entraînement mécanique des roues 10 d'un véhicule. Bien que la ligne de transmission illustrée comprenne uniquement des composants mécaniques, l'expression "ligne de transmission mécanique" couvre également selon l'invention une ligne de transmission comportant un composant hydraulique tel qu'un convertisseur dans le cas d'une boîte de vitesses automatique, ou un embrayage électromagnétique.DETAILED DESCRIPTION OF THE INVENTION The invention relates to a drive system for various equipment associated with a heat engine 1 comprising a crankshaft 2 to which is connected a mechanical transmission line generally designated 3 comprising in the illustrated embodiment, a steering wheel inertia 4, a clutch 5, a gearbox 6 having a primary shaft 7 and a secondary shaft 8, and a bridge 9 for the mechanical drive of the wheels 10 of a vehicle. Although the illustrated transmission line comprises only mechanical components, the expression "mechanical transmission line" also covers, according to the invention, a transmission line comprising a hydraulic component such as a converter in the case of an automatic gearbox, or an electromagnetic clutch.
Le système comporte un ou plusieurs générateurs électriques portant la référence générale 1 1 sur la figure 2, et les références particulières 1 1 .1 , 1 1 .2, 1 1 .3... sur la figure 1 qui illustre les implantations possibles, et les modes d'entraînement mécanique. En particulier, le générateur 1 1 .1 est fixé sur le côté du bloc moteur et est entraîné en rotation de façon traditionnelle par une courroie 12 passant sur une poulie 13 fixée au vilebrequin 2 ; le générateur 1 1 .2 est fixé au bloc moteur et est entraîné par un pignon 14 associé à une boîte de vi- tesses 36 à rapport variable, pilotée par une unité de gestion non représentée en fonction de la vitesse de rotation du moteur, de façon à faire fonctionner le générateur 1 1 .2 dans une plage de vitesses optimale quelle que soit la vitesse de rotation du moteur. Le pignon 14 engrène avec la couronne dentée 15 fixée au volant d'inertie 4. Le générateur 1 1 .3 est un générateur-galette dont le rotor est fixé au volant d'inertie 4 et le stator est fixé au bloc moteur ; le générateur 1 1 .4 est fixé à la boîte de vitesses et est entraîné par une courroie 16 passant sur une poulie 17 fixée au volant d'inertie 4 ; le générateur 1 1 .5 est également un générateur- galette dont le rotor est fixé à l'arbre d'entrée de la boîte de vitesses 6 et dont le stator est fixé à la boîte de vitesses 6.The system comprises one or more generators with the general reference 1 1 in Figure 2, and the specific references 1 1 .1, 1 1 .2, 1 1 .3 ... in Figure 1 which illustrates the possible implantations, and mechanical drive modes. In particular, the generator 1 1 .1 is fixed on the side of the engine block and is rotated in the traditional manner by a belt 12 passing over a pulley 13 fixed to the crankshaft 2; the generator 1 1 .2 is fixed to the engine block and is driven by a pinion 14 associated with a variable speed gear box 36, driven by a management unit, not represented as a function of the speed of rotation of the engine, to operate the 1 1 .2 generator in an optimum speed range regardless of the motor rotation speed. The pinion 14 meshes with the ring gear 15 fixed to the flywheel 4. The generator 1 1 .3 is a generator-pancake whose rotor is fixed to the flywheel 4 and the stator is fixed to the engine block; the generator 1 1 .4 is fixed to the gearbox and is driven by a belt 16 passing over a pulley 17 fixed to the flywheel 4; the generator 1 1 .5 is also a generator-pancake whose rotor is fixed to the input shaft of the gearbox 6 and whose stator is fixed to the gearbox 6.
Le générateur 1 1 .6 est entraîné par un pignon 18 engrenant avec un pignon 19 porté par l'arbre primaire 7 ; le générateur 1 1 .7 est entraîné par un pignon 20 engrenant avec un pignon 21 porté par l'arbre secondaire 8 ; le générateur 1 1 .8 est entraîné par un pignon 22 engrenant avec le pont 9 ; le généra- teur 1 1 .9 est monté sur un arbre de roues et le générateur 1 1 .10 est intégré dans une roue.The generator 1 1 .6 is driven by a pinion 18 meshing with a pinion 19 carried by the primary shaft 7; the generator 1 1 .7 is driven by a pinion 20 meshing with a pinion 21 carried by the secondary shaft 8; the generator 1 1 .8 is driven by a pinion 22 meshing with the bridge 9; the generator 1 1 .9 is mounted on a wheel shaft and the generator 1 1 .10 is integrated in a wheel.
Selon l'invention à la figure 2, le ou les générateurs électriques 1 1 sont reliés à un réseau électrique comportant un pont de diodes 23 relié de façon connue en soi à un accumulateur haute tension 24 et un convertisseur ré- versible continu/continu 25 lui-même relié à un accumulateur basse tension 26. Le réseau comprend également un organe de gestion non représenté assurant le fonctionnement du réseau en fonction de la demande provenant des équipements reliés au réseau. Selon l'invention, le ou les générateurs 1 1 servent non seulement à alimenter les équipements fonctionnant traditionnellement avec de l'électricité tels que les lampes 27, la chaîne audio 28, les essuie-glaces 29, le démarreur 35 ou le chauffage des sièges 30, mais également d'autres équipements à piè- ces mobiles traditionnellement entraînés de façon mécanique en particulier les équipements externes tels que la pompe à eau 31 , la direction assistée 32, un compresseur 33 intégré au système de climatisation de l'habitacle, et de préférence des actionneurs de soupapes électromagnétiques 34. Le nombre d'équipements représentés n'est pas limitatif et on peut y ajouter d'autres équipe- ments aussi bien dans la partie du réseau alimentée sous haute tension que dans la partie du réseau alimentée sous basse tension.According to the invention in FIG. 2, the electric generator or generators 1 1 are connected to an electrical network comprising a diode bridge 23 connected in a manner known per se to a high voltage accumulator 24 and a continuous / DC reversible converter 25 it itself connected to a low voltage accumulator 26. The network also comprises a not shown management member ensuring the operation of the network according to the demand from equipment connected to the network. According to the invention, the generator (s) 1 1 serve not only to power equipment that has traditionally operated with electricity, such as lamps 27, audio system 28, windscreen wipers 29, starter 35 or seat heating. 30, but also other mechanically mechanically driven equipment with moving parts, in particular external equipment such as water pump 31, power steering 32, a compressor 33 integrated into the air-conditioning system of the passenger compartment, and preferably electromagnetic valve actuators 34. The number of equipment shown is not limiting and other equipment can be added both in the part of the network supplied with high voltage and in the part of the network supplied with electricity. low tension.
L'implantation du ou des générateurs 1 1 est de préférence choisie pour améliorer la compacité de l'ensemble moteur-transmission. En particulier, bien que l'invention ait été illustrée sur la figue 1 avec un générateur 1 1 .1 en- traîné par une poulie 13 fixée à une extrémité du vilebrequin 2 s'étendant en saillie par rapport au bloc moteur, il est préférable de réaliser une implantation en un point de la ligne de transmission en aval du vilebrequin, ce qui permet de supprimer la poulie 13. De préférence, le ou les générateurs sont reliés au volant d'inertie 4, à l'arbre primaire 7 de la boîte de vitesses ou en un point inter- médiaire entre le volant d'inertie et l'arbre primaire afin de bénéficier d'un entraînement des générateurs dès l'instant où le moteur est en route même lorsque le véhicule est à l'arrêt. On notera à ce propos que le système selon l'invention présente non seulement l'avantage d'améliorer la compacité du bloc moteur mais permet également de faire fonctionner les équipements à leur vi- tesse optimale quelle que soit la vitesse de rotation du moteur thermique, ce qui permet d'améliorer le rendement des équipements et donc de diminuer leur taille. En outre, l'alimentation électrique des équipements permet de disposer ceux-ci de façon optimisée par rapport à la fonction qu'ils exercent ou par rapport aux nécessités de leur refroidissement. On minimise donc les risques de détérioration résultant habituellement de la température très élevée sous le capot.The location of the generator (s) 1 1 is preferably chosen to improve the compactness of the motor-transmission unit. In particular, although the invention has been illustrated in Fig. 1 with a generator 1 1 .1 driven by a pulley 13 attached to one end of the crankshaft 2 projecting from the engine block, it is preferable to to implement an implementation at a point of the transmission line downstream of the crankshaft, which allows to remove the pulley 13. Preferably, the generator or generators are connected to the flywheel 4, the primary shaft 7 of the gearbox or at an intermediate point between the flywheel and the input shaft to benefit from a drive of the generators from the moment the engine is running even when the vehicle is stopped. It will be noted in this connection that the system according to the invention not only has the advantage of improving the compactness of the engine block but also makes it possible to operate the equipment at its optimum speed whatever the speed of rotation of the engine. , which improves the efficiency of the equipment and therefore reduces their size. In addition, the power supply of the equipment makes it possible to arrange the latter in an optimized manner with respect to the function they perform or in relation to the needs of their cooling. This minimizes the risk of deterioration usually resulting from the very high temperature under the hood.
Bien entendu, l'invention n'est pas limitée au mode de réalisation illustré et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the illustrated embodiment, and variant embodiments can be made without departing from the scope of the invention. the invention as defined by the claims.
Bien que l'invention ait été illustrée en figure 1 avec plusieurs générateurs, selon le cas, seuls certains emplacements seront retenus.Although the invention has been illustrated in Figure 1 with several generators, as the case may be, only certain locations will be retained.
En particulier, bien que l'invention ait été illustrée avec plusieurs gé- nérateurs sur la figure 2, ce qui permet d'utiliser des générateurs de petite taille disposés en différents points et pilotés en fonction des conditions de fonctionnement du véhicule, on peut utiliser un générateur unique bénéficiant d'un meilleur rendement global.In particular, although the invention has been illustrated with several generators in FIG. 2, which makes it possible to use small generators arranged at different points and controlled according to the operating conditions of the vehicle, it is possible to use a unique generator with better overall performance.
Bien que l'invention ait été illustrée en relation avec un moteur ther- mique dont les soupapes sont commandées par des actionneurs électromagnétiques, le système selon l'invention s'applique également à un moteur dont les soupapes sont commandées de façon traditionnelle par un arbre à came, la compacité du moteur étant alors diminuée du fait de l'entraînement de l'arbre à came par une chaîne de distribution. Les exemples donnés d'implantation des générateurs ne sont pas limitatifs, pas plus que les moyens d'entraînement de ces générateurs. En outre un rapport d'entraînement variable peut être appliqué à chacun des générateurs en fonction de son implantation et le rapport d'entraînement peut être variable de façon discrète ou continue. Although the invention has been illustrated in connection with a thermal engine whose valves are controlled by electromagnetic actuators, the system according to the invention also applies to a motor whose valves are controlled in a traditional way by a shaft. to cam, the compactness of the motor is then reduced due to the drive of the camshaft by a timing chain. The given examples of implantation of the generators are not limiting, any more than the drive means of these generators. In addition, a variable drive ratio can be applied to each of the generators depending on its location and the drive ratio can be discretely or continuously variable.

Claims

REVENDICATIONS
1 . Système d'entraînement de divers équipements et accessoires par une fonction générateur associés à un moteur thermique (1 ) comprenant un vilebrequin (2) auquel est reliée une ligne de transmission mécanique (3), caractérisé seule la fonction générateur est relié mécaniquement à la puissance mécanique générée par le moteur thermique.1. Drive system of various equipment and accessories by a generator function associated with a heat engine (1) comprising a crankshaft (2) to which is connected a mechanical transmission line (3), characterized only the generator function is mechanically connected to the power mechanical generated by the engine.
2. Système selon la revendication 1 , caractérisé en ce que le ou les générateurs (1 1 ) sont reliés à un point de la ligne de transmission (3) en aval du vilebrequin (2).2. System according to claim 1, characterized in that the generator or generators (1 1) are connected to a point of the transmission line (3) downstream of the crankshaft (2).
3. Système selon la revendication 2, caractérisé en ce que la ligne de transmission (3) comporte un volant d'inertie (4) associé à une boîte de vitesses (6) ayant un arbre primaire (7) et en ce que le ou les générateurs sont reliés au volant d'inertie (4), à l'arbre primaire (7), ou en un point intermédiaire entre le volant d'inertie (4) et l'arbre primaire (7).3. System according to claim 2, characterized in that the transmission line (3) comprises a flywheel (4) associated with a gearbox (6) having a primary shaft (7) and in that the or the generators are connected to the flywheel (4), to the primary shaft (7), or to an intermediate point between the flywheel (4) and the primary shaft (7).
4. Système selon la revendication 1 , caractérisé en ce que le moteur (1 ) comporte des actionneurs électromagnétiques de soupapes (34) reliés au réseau électrique.4. System according to claim 1, characterized in that the motor (1) comprises electromagnetic valve actuators (34) connected to the electrical network.
5. Système selon la revendication 1 , caractérisé en ce qu'au moins un générateur (1 1 .2) comporte des moyens d'entraînement (36) à rapport variable. 5. System according to claim 1, characterized in that at least one generator (1 1 .2) comprises variable ratio drive means (36).
EP06808313A 2005-09-12 2006-09-12 System for driving electrical appliances associated with a heat engine Ceased EP1924459A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0509252A FR2890609B1 (en) 2005-09-12 2005-09-12 SYSTEM FOR ELECTRICALLY DRIVING EQUIPMENT ASSOCIATED WITH A THERMAL MOTOR
PCT/FR2006/050875 WO2007031683A1 (en) 2005-09-12 2006-09-12 System for driving electrical appliances associated with a heat engine

Publications (1)

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EP1924459A1 true EP1924459A1 (en) 2008-05-28

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EP (1) EP1924459A1 (en)
JP (1) JP2009508058A (en)
FR (1) FR2890609B1 (en)
WO (1) WO2007031683A1 (en)

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CN103723052B (en) * 2013-12-31 2016-04-13 北京理工大学 A kind of energy management method of electrobus motorized ancillary system
CN105437967A (en) * 2015-12-29 2016-03-30 胡挺 Automobile auxiliary power system and new energy automobile
CN107139718B (en) * 2017-05-22 2023-09-26 东风汽车泵业有限公司 Automobile auxiliary system and automobile

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JP3211626B2 (en) * 1994-06-29 2001-09-25 トヨタ自動車株式会社 Hybrid car
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JP2009508058A (en) 2009-02-26
FR2890609B1 (en) 2007-10-19
FR2890609A1 (en) 2007-03-16
US20090121543A1 (en) 2009-05-14
WO2007031683A1 (en) 2007-03-22

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