FR2881382A1 - Reversible rotating machine rotor and transmission input shaft coupling device for motor vehicle, has rotor with hub whose one end is arranged against bearing of transmission and centered on shaft by plain bearing - Google Patents

Reversible rotating machine rotor and transmission input shaft coupling device for motor vehicle, has rotor with hub whose one end is arranged against bearing of transmission and centered on shaft by plain bearing Download PDF

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Publication number
FR2881382A1
FR2881382A1 FR0500989A FR0500989A FR2881382A1 FR 2881382 A1 FR2881382 A1 FR 2881382A1 FR 0500989 A FR0500989 A FR 0500989A FR 0500989 A FR0500989 A FR 0500989A FR 2881382 A1 FR2881382 A1 FR 2881382A1
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France
Prior art keywords
rotor
primary shaft
housing
hub
clutch
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Granted
Application number
FR0500989A
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French (fr)
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FR2881382B1 (en
Inventor
Alain Paumier
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PSA Automobiles SA
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Peugeot Citroen Automobiles SA
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Priority to FR0500989A priority Critical patent/FR2881382B1/en
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Publication of FR2881382B1 publication Critical patent/FR2881382B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K6/485—Motor-assist type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/424—Friction clutches
    • B60Y2400/4242—Friction clutches of dry type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The device has a rotor (6) with a hub (7) whose one end is rotatably mounted relative to a casing (25) carrying a stator (5) using an antifriction bearing (26). The hub is connected to a shaft (8) by a spline connection. An opposite end of the hub is arranged against an antifriction bearing (11) of a transmission and is centered on the shaft by a plain bearing (24), where the bearing (11) supports the shaft against a clutch.

Description

La présente invention concerne un dispositif d'accouplement entre le rotorThe present invention relates to a coupling device between the rotor

d'une machine électrique tournante réversible et l'arbre primaire de la boîte de vitesses d'un moteur thermique d'un groupe motopropulseur  of a reversible rotary electric machine and the primary shaft of the gearbox of a heat engine of a power train

hybride d'un véhicule automobile.hybrid of a motor vehicle.

On connaît un tel dispositif selon lequel le rotor de la machine électrique est solidaire d'un moyeu monté concentriquement à l'arbre primaire de la boîte de vitesses et à rotation relativement à un carter fixe portant le stator de la machine électrique, le stator et le rotor étant coaxiaux et un entrefer étant défini entre la périphérie interne du stator et la périphérie externe du rotor.  Such a device is known according to which the rotor of the electric machine is integral with a hub mounted concentrically to the primary shaft of the gearbox and rotated relative to a fixed casing carrying the stator of the electric machine, the stator and the rotor being coaxial and an air gap being defined between the inner periphery of the stator and the outer periphery of the rotor.

L'arbre primaire est monté à rotation à son extrémité située du côté de la boîte de vitesses par un palier à roulement baignant dans l'huile de boîte de vitesses et son extrémité opposée est également montée à rotation dans un trou borgne réalisé en bout de l'arbre vilebrequin du moteur thermique par l'intermédiaire d'un palier lisse.  The primary shaft is rotatably mounted at its end located on the transmission side by a rolling bearing immersed in the gearbox oil and its opposite end is also rotatably mounted in a blind hole formed at the end of the transmission. the crankshaft of the engine by means of a plain bearing.

L'arbre primaire est en outre accouplé à l'arbre vilebrequin par l'intermédiaire d'un embrayage pouvant être débrayé par une commande d'embrayage de manière à passer d'une position embrayée de l'embrayage à laquelle la rotation de l'arbre vilebrequin est transmise à l'arbre primaire, à une position débrayée de cet embrayage, lors du passage d'un rapport de vitesse ou en mode électrique de fonctionnement du moteur, et à laquelle l'arbre vilebrequin est désaccouplé de l'arbre primaire.  The primary shaft is further coupled to the crankshaft via a clutch which can be disengaged by a clutch control so as to move from an engaged position of the clutch to which the rotation of the clutch. crankshaft is transmitted to the primary shaft, to a disengaged position of this clutch, during the passage of a gear ratio or in electrical operating mode of the engine, and at which the crankshaft is uncoupled from the primary shaft .

Ce dispositif d'accouplement connu a pour inconvénient d'être une structure relativement complexe du fait que la commande d'embrayage montée concentriquement entre l'arbre primaire et le moyeu du rotor est composée d'un manchon à trois poussoirs et de deux butées pour assurer la commande de l'embrayage. Ce dispositif a pour autre inconvénient que l'ensemble à moyeu et rotor est monté en porte-à-faux sur l'arbre primaire approximativement au milieu de celui-ci et un tel balourd du rotor génère des micros déplacements entre les cannelures de l'arbre primaire et de la machine électrique, provoquant une usure par contact. Enfin, cette disposition en porte-à-faux du rotor sur l'arbre primaire a également pour inconvénient que l'entrefer entre rotor et stator n'est pas maintenu à une valeur rigoureusement constante.  This known coupling device has the drawback of being a relatively complex structure because the clutch control mounted concentrically between the primary shaft and the hub of the rotor is composed of a sleeve with three pushers and two stops for ensure control of the clutch. This device has the further disadvantage that the hub and rotor assembly is cantilevered on the primary shaft approximately in the middle thereof and such unbalance of the rotor generates microstrokes between the splines of the rotor. primary shaft and electrical machine, causing contact wear. Finally, this provision cantilever of the rotor on the primary shaft also has the disadvantage that the air gap between the rotor and the stator is not maintained at a strictly constant value.

La présente invention a pour but d'éliminer les inconvénients ci-dessus en proposant un dispositif d'accouplement entre le rotor d'une machine électrique tournante réversible et l'arbre primaire de la boîte de vitesses d'un moteur thermique d'un groupe motopropulseur hybride d'un véhicule automobile, le rotor étant solidaire d'un moyeu monté concentriquement à l'arbre primaire et à rotation relativement à un carter fixe portant un stator de la machine électrique définissant un entrefer avec le rotor, et l'arbre primaire pouvant être désaccouplé en rotation de l'arbre vilebrequin du moteur par l'intermédiaire d'un embrayage débrayable par une commande à butée de débrayage, et qui est caractérisé en ce que le moyeu du rotor est monté directement sur l'arbre primaire et relié à ce dernier par une liaison à cannelures en un emplacement proche du palier de la boîte de vitesses supportant l'arbre primaire à l'opposé de l'embrayage.  The present invention aims to eliminate the above disadvantages by providing a coupling device between the rotor of a reversible rotary electric machine and the primary shaft of the gearbox of a heat engine of a group hybrid power train of a motor vehicle, the rotor being integral with a hub mounted concentrically to the primary shaft and rotated relative to a fixed casing carrying a stator of the electric machine defining an air gap with the rotor, and the primary shaft being able to be uncoupled in rotation from the crankshaft of the engine by means of a disengageable clutch by a clutch release control, and which is characterized in that the hub of the rotor is mounted directly on the primary shaft and connected to to the latter by a splined connection in a location close to the bearing of the gearbox supporting the primary shaft opposite the clutch.

De préférence, le moyeu du rotor est en forme de manchon et a l'une de ses extrémités montée à rotation relativement au carter portant le stator par un palier à roulement et une partie son extrémité opposée, située en regard du palier supportant l'arbre primaire à l'opposé de l'embrayage, centrée sur l'arbre primaire par un genre de palier lisse permettant de recentrer le moyeu du rotor par rapport à l'arbre primaire.  Preferably, the hub of the rotor is in the form of a sleeve and at one of its ends rotatably mounted relative to the casing bearing the stator by a rolling bearing and a part of its opposite end, located opposite the bearing supporting the shaft. primary opposite the clutch, centered on the primary shaft by a kind of plain bearing for recentering the hub of the rotor relative to the primary shaft.

Le carter portant le stator présente en section transversale la forme d'une cloche montée concentriquement à l'arbre primaire en ayant son ouverture en regard de l'embrayage et la commande à butée de débrayage est logée dans le carter en forme de cloche à proximité du palier à roulement de ce carter supportant l'arbre primaire en étant disposée en regard de l'embrayage et concentriquement à l'arbre primaire.  The casing carrying the stator has in cross section the shape of a bell mounted concentrically to the primary shaft having its opening opposite the clutch and the clutch release control is housed in the bell-shaped housing nearby. rolling bearing of this housing supporting the primary shaft being disposed opposite the clutch and concentrically to the primary shaft.

Le moyeu du rotor fait partie d'un carter présentant en section transversale la forme d'une cloche portant le rotor et montée concentriquement à l'arbre primaire en étant adjacente à la cloche du carter portant le stator à l'opposé de l'embrayage de manière que la cloche du carter portant le stator soit logée dans la cloche du carter portant le rotor.  The hub of the rotor is part of a housing having in cross section the shape of a bell carrying the rotor and concentrically mounted to the primary shaft being adjacent to the housing bell housing the stator opposite the clutch so that the housing bell housing the stator is housed in the housing bell housing the rotor.

La cloche du carter portant le stator se termine dans la cloche du carter portant le rotor par une paroi annulaire dans laquelle est monté le palier à roulement du moyeu du rotor.  The bell housing bearing the stator ends in the housing bell carrying the rotor by an annular wall in which is mounted the rolling bearing of the rotor hub.

La liaison à cannelures du moyeu du rotor à l'arbre primaire est lubrifiée par l'huile présente dans la boîte 20 de vitesses.  The splined connection of the rotor hub to the main shaft is lubricated by the oil in the gearbox.

Avantageusement, un joint torique est monté sur l'arbre primaire à l'intérieur de la cloche du carter portant le stator et est centré dans l'extrémité du manchon du moyeu du rotor.  Advantageously, an O-ring is mounted on the primary shaft within the bell housing of the housing carrying the stator and is centered in the end of the sleeve of the rotor hub.

L'arbre primaire a son extrémité opposée au moyeu du rotor montée à rotation par un palier lisse dans un trou borgne réalisé en bout de l'arbre vilebrequin du moteur avec jeu pour accepter les défauts de concentricité.  The primary shaft has its end opposite to the hub of the rotor rotatably mounted by a sliding bearing in a blind hole formed at the end of the engine crankshaft shaft with clearance to accept the concentricity defects.

De préférence, la commande à butée de débrayage est du type hydraulique.  Preferably, the throttle stop control is of the hydraulic type.

L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement dans la description explicative qui va suivre faite en référence aux dessins annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels: - la figure 1 est une vue en coupe longitudinale représentant une machine électrique tournante réversible faisant partie d'un groupe motopropulseur hybride d'un véhicule automobile; et - la figure 2 est une vue agrandie en perspective d'une commande à butée de débrayage hydraulique utilisée dans la machine de la figure 1.  The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which will follow with reference to the accompanying drawings given solely by way of example illustrating an embodiment. of the invention and in which: - Figure 1 is a longitudinal sectional view showing a reversible rotary electric machine belonging to a hybrid powertrain of a motor vehicle; and FIG. 2 is an enlarged perspective view of a hydraulic clutch abutment control used in the machine of FIG. 1.

En se reportant à la figure 1, la référence 1 désigne une machine électrique tournante réversible, logée dans un carter d'embrayage 2 qui est fixé entre le carter 3 de la boîte de vitesses et le carter 4 du moteur thermique d'un véhicule automobile.  Referring to FIG. 1, reference numeral 1 denotes a reversible rotary electric machine housed in a clutch housing 2 which is fixed between the casing 3 of the gearbox and the casing 4 of the engine of a motor vehicle .

La machine électrique 1, qui fait ainsi partie d'un groupe motopropulseur hybride, comprend essentiellement un stator annulaire fixe 5 et un rotor annulaire 6 logé coaxialement dans le stator fixe 5 suivant un axe de symétrie axial X-X' autour duquel le rotor est monté rotatif.  The electric machine 1, which thus forms part of a hybrid powertrain, essentially comprises a fixed annular stator 5 and an annular rotor 6 coaxially housed in the stationary stator 5 along an axis of axial symmetry XX 'around which the rotor is rotatably mounted. .

Un entrefer est défini entre la périphérie interne du stator 5 et la périphérie externe du rotor 6.  An air gap is defined between the inner periphery of the stator 5 and the outer periphery of the rotor 6.

Le rotor 6 est monté solidaire sur un moyeu de support 7 disposé concentriquement autour d'un arbre primaire ou arbre d'entrée 8 de la boîte de vitesses 3 s'étendant suivant l'axe X-X' et est monté à rotation à cet arbre comme on le verra ultérieurement.  The rotor 6 is mounted integral on a support hub 7 arranged concentrically around a primary shaft or input shaft 8 of the gearbox 3 extending along the axis XX 'and is rotatably mounted to this shaft as we will see later.

Le stator 5 est fixé au carter d'embrayage 2 par des vis de fixation 9, dont une seule est représentée, traversant des brides de fixation en étoile 10 faisant extérieurement saillie d'une partie annulaire dans laquelle est fixée par emmanchement la périphérie externe du stator 5.  The stator 5 is fixed to the clutch housing 2 by fastening screws 9, only one of which is shown, passing through star-like fixing flanges projecting from an annular portion in which the outer periphery of the outer periphery is fixed by fitting. stator 5.

L'arbre primaire 8 est monté à rotation à son extrémité côté boîte de vitesses 3 par un palier à roulement 11 et centré à son extrémité opposée à la boîte de vitesses dans un trou borgne 12a réalisé en bout ou partie formant nez de l'arbre vilebrequin 12 du moteur thermique par un palier lisse 13.  The primary shaft 8 is rotatably mounted at its gearbox end 3 by a rolling bearing 11 and centered at its opposite end to the gearbox in a blind hole 12a formed at the end or part forming the nose of the shaft. crankshaft 12 of the heat engine by a plain bearing 13.

Un volant d'inertie 14 est fixé à l'arbre vilebrequin 12 par des vis de fixation 15 et comporte une face dressée 14a perpendiculaire à l'arbre vilebrequin 12 sur laquelle peut venir en engagement par friction au moins un disque d'embrayage de friction 16 à déplacement axial commandé par un plateau 17. Ce dernier est commandé par une butée de débrayage 18 et le disque d'embrayage 16 est relié par un accouplement flexible 19 à un moyeu 20 solidaire en rotation de l'arbre primaire 8, par exemple par des cannelures.  An flywheel 14 is fixed to the crank shaft 12 by fixing screws 15 and has a raised face 14a perpendicular to the crankshaft 12 on which can engage frictionally at least one friction clutch disk 16 to axial displacement controlled by a plate 17. The latter is controlled by a clutch release bearing 18 and the clutch plate 16 is connected by a flexible coupling 19 to a hub 20 integral in rotation with the primary shaft 8, for example by grooves.

Le plateau d'embrayage 17 est commandé par un diaphragme 21 monté concentriquement à l'arbre primaire 8 et piloté par la butée 18 pour amener l'embrayage constitué par le disque 16 et le plateau 17 en position embrayée ou débrayée du volant d'inertie 14 et, par conséquent, accoupler l'arbre primaire 8 à l'arbre vilebrequin 12 ou le désaccoupler de ce dernier lors du passage d'un rapport de vitesse ou en mode de fonctionnement électrique du moteur. Le diaphragme 21 est disposé entre le plateau 17 et un couvercle d'embrayage 22, la membrane 21 étant fixée au couvercle 22 par des rivets 23 régulièrement répartis sur une même circonférence au voisinage du bord externe de la membrane 21.  The clutch plate 17 is controlled by a diaphragm 21 mounted concentrically to the primary shaft 8 and controlled by the stop 18 to bring the clutch formed by the disc 16 and the plate 17 in the engaged or disengaged position of the flywheel 14 and, therefore, coupling the primary shaft 8 to the crankshaft 12 or uncouple it during the passage of a gear ratio or in electric operating mode of the engine. The diaphragm 21 is disposed between the plate 17 and a clutch cover 22, the membrane 21 being fixed to the cover 22 by rivets 23 regularly distributed on the same circumference in the vicinity of the outer edge of the membrane 21.

Selon l'invention, le moyeu 7 du rotor 6 présente en section transversale la forme générale d'une cloche montée concentriquement à l'arbre primaire 8 en ayant son ouverture dirigée vers l'embrayage. La paroi 7a de la cloche opposée à son ouverture et s'étendant transversalement à l'arbre primaire 8 est raccordée en son centre à un manchon 7b du moyeu 7 s'étendant au travers de la paroi 7a de part et d'autre de celle-ci et le manchon 7b est monté directement sur l'arbre 8 en étant relié à ce dernier par une liaison à cannelures en un emplacement proche du palier à roulement 11 situé à l'opposé de l'embrayage. Une partie d'extrémité du manchon 7b, déportée par rapport à la paroi 7a du moyeu 7 et située en regard du palier à roulement 11 opposé à l'embrayage, n'est pas reliée par des cannelures à l'arbre primaire 8, mais est centrée sur cet arbre par un genre de palier lisse 24 permettant de reprendre les jeux radiaux dus à la liaison cannelée et de reprendre les défauts de concentricité de l'arbre primaire 8 par rapport au moyeu 7 du rotor 6 par un recentrage de celui-ci.  According to the invention, the hub 7 of the rotor 6 has in cross section the general shape of a bell mounted concentrically to the primary shaft 8 having its opening directed towards the clutch. The wall 7a of the bell opposite its opening and extending transversely to the primary shaft 8 is connected at its center to a sleeve 7b of the hub 7 extending through the wall 7a on either side of that and the sleeve 7b is mounted directly on the shaft 8 being connected thereto by a splined connection at a location close to the rolling bearing 11 located opposite the clutch. An end portion of the sleeve 7b, offset from the wall 7a of the hub 7 and located opposite the rolling bearing 11 opposite the clutch, is not connected by splines to the primary shaft 8, but is centered on this shaft by a kind of plain bearing 24 to take up the radial clearances due to the spline connection and to take concentricity defects of the primary shaft 8 with respect to the hub 7 of the rotor 6 by a refocusing thereof this.

L'extrémité opposée du manchon 7b située dans la cloche du moyeu 7 est montée à rotation relativement à un carter 25 portant le stator 5 par un palier à roulement 26.  The opposite end of the sleeve 7b located in the bell of the hub 7 is rotatably mounted relative to a housing 25 carrying the stator 5 by a rolling bearing 26.

Le carter 25 du support du stator 5 présente également en section transversale la forme générale d'une cloche montée concentriquement à l'arbre primaire 8 en ayant son ouverture en regard de l'embrayage.  The housing 25 of the stator support 5 also has in cross section the general shape of a bell mounted concentrically to the primary shaft 8 having its opening opposite the clutch.

La cloche 25 du stator 5 est en partie logée dans la cloche conjuguée 7 du rotor 6 en étant adjacente à cette dernière et laissant subsister entre elles un petit espace.  The bell 25 of the stator 5 is partially housed in the conjugate bell 7 of the rotor 6 being adjacent to the latter and leaving a small gap between them.

La partie périphérique externe 25a de la cloche du carter 25 de support du stator 5 est conformée de manière à supporter le côté du stator 5 adjacent au couvercle d'embrayage 22 et est fixée au carter 2 par les vis de fixation 9.  The outer peripheral portion 25a of the bell housing 25 of the stator support 5 is shaped to support the side of the stator 5 adjacent to the clutch cover 22 and is fixed to the housing 2 by the fixing screws 9.

La cloche du carter 25 du stator 5 se termine dans la cloche 7 de carter portant le rotor 6 par une partie cylindrique 25b dans laquelle est monté le palier à roulement 26.  The housing bell 25 of the stator 5 terminates in the housing bell 7 carrying the rotor 6 by a cylindrical portion 25b in which the rolling bearing 26 is mounted.

La cloche du carter du moyeu 7 comporte une paroi annulaire externe 7c sur la périphérie externe de laquelle est monté le rotor 6.  The bell housing of the hub 7 has an outer annular wall 7c on the outer periphery of which is mounted the rotor 6.

La commande à butée de débrayage 18 est du type hydraulique, connue en soi, et est logée dans le carter en forme de cloche 25 du stator 5 concentriquement à l'arbre primaire 8 en étant fixée d'un côté au carter 25 à proximité du palier à roulement 26 et de l'autre côté en regard de l'embrayage de manière que la butée puisse agir sur la membrane 21 comme expliqué précédemment.  The clutch thrust control 18 is of the hydraulic type, known per se, and is housed in the bell-shaped housing 25 of the stator 5 concentrically with the primary shaft 8 being fixed on one side to the housing 25 near the rolling bearing 26 and the other side facing the clutch so that the stop can act on the membrane 21 as explained above.

La liaison à cannelures du moyeu 7 du rotor 6 à l'arbre primaire 8 est lubrifiée par l'huile présente dans la boîte de vitesses et un joint torique 27 est monté sur l'arbre primaire 8 à l'intérieur de la cloche du carter 25 du stator 5 en étant centré dans l'extrémité correspondante du moyeu 7b.  The splined connection of the hub 7 of the rotor 6 to the primary shaft 8 is lubricated by the oil present in the gearbox and an O-ring 27 is mounted on the primary shaft 8 inside the crankcase bell. 25 of the stator 5 being centered in the corresponding end of the hub 7b.

Un joint d'étanchéité 28, du type spi, est disposé 10 entre le carter d'embrayage 2 et la périphérie externe du moyeu 7.  A seal 28, of the spinnaker type, is disposed between the clutch housing 2 and the outer periphery of the hub 7.

Le dispositif d'accouplement ci-dessus décrit de l'invention permet de réduire considérablement le porte-à-faux du rotor sur l'arbre primaire et le recentrage de ce rotor par son roulement centré dans le palier de l'arbre primaire dans le carter d'embrayage. De la sorte, l'entrefer entre le rotor et le stator d'une machine électrique est parfaitement maîtrisé à une valeur constante et les micro-déplacements entre les cannelures de l'arbre primaire et de la machine électrique sont supprimés. En outre, les cannelures entre l'arbre primaire sont graissées pair l'huile de la boîte de vitesses. Enfin, la commande de débrayage est implantée directement à proximité du mécanisme d'embrayage. Le diamètre du roulement de la machine électrique étant réduit, cela permet un meilleur rendement de par une réduction des pertes par frottement.  The aforementioned coupling device of the invention makes it possible to considerably reduce the overhang of the rotor on the primary shaft and the recentering of this rotor by its bearing centered in the bearing of the primary shaft in the clutch housing. In this way, the gap between the rotor and the stator of an electric machine is perfectly controlled at a constant value and micro-movements between the splines of the primary shaft and the electric machine are removed. In addition, the splines between the primary shaft are lubricated by the oil of the gearbox. Finally, the clutch control is located directly near the clutch mechanism. The diameter of the bearing of the electric machine being reduced, this allows a better performance by reducing friction losses.

Claims (9)

REVENDICATIONS 1. Dispositif d'accouplement entre le rotor (6) d'une machine électrique tournante réversible et l'arbre primaire (8) de la boîte de vitesses d'un moteur thermique d'un groupe motopropulseur hybride d'un véhicule automobile, le rotor (6) étant solidaire d'un moyeu (7) monté concentriquement à l'arbre primaire (8) et à rotation relativement à un carter fixe (25) portant un stator (5) de la machine électrique définissant un entrefer avec le rotor (6) et l'arbre primaire (8) pouvant être désaccouplé en rotation de l'arbre vilebrequin (12) du moteur par l'intermédiaire d'un embrayage débrayable par une commande à butée de débrayage (18), caractérisé en ce que le moyeu (7) du rotor (6) est monté directement sur l'arbre primaire (8) et relié à ce dernier par une liaison à cannelures en un emplacement proche du palier (11) de la boîte de vitesses supportant l'arbre primaire (8) à l'opposé de l'embrayage.  1. A coupling device between the rotor (6) of a reversible rotary electric machine and the primary shaft (8) of the gearbox of a hybrid powertrain engine of a motor vehicle, the rotor (6) being integral with a hub (7) concentrically mounted to the primary shaft (8) and rotatable relative to a stationary housing (25) carrying a stator (5) of the electric machine defining an air gap with the rotor (6) and the primary shaft (8) can be uncoupled in rotation from the crank shaft (12) of the engine via a disengageable clutch by a clutch release control (18), characterized in that the hub (7) of the rotor (6) is mounted directly on the primary shaft (8) and connected thereto by a splined connection at a location close to the bearing (11) of the gearbox supporting the primary shaft (8) opposite the clutch. 2. Dispositif selon la revendication 1, caractérisé en ce que le moyeu (7) du rotor (6) est en forme de manchon (7b) et a l'une de ses extrémités montée à rotation relativement au carter (25) portant le stator (5) par un palier à roulement (26) et une partie de son extrémité opposée, située en regard du palier supportant l'arbre primaire (8) à l'opposé de l'embrayage, centrée sur l'arbre primaire (8) par un genre de palier lisse (24) permettant de recentrer le moyeu (7) du rotor (6) par rapport à l'arbre primaire (8).  2. Device according to claim 1, characterized in that the hub (7) of the rotor (6) is in the form of sleeve (7b) and at one of its ends rotatably mounted relative to the housing (25) carrying the stator (5) by a rolling bearing (26) and a part of its opposite end, located opposite the bearing supporting the primary shaft (8) opposite the clutch, centered on the primary shaft (8) by a kind of plain bearing (24) for recentering the hub (7) of the rotor (6) with respect to the primary shaft (8). 3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le carter (25) portant le stator (5) présente en section transversale la forme d'une cloche montée concentriquement à l'arbre primaire (8) en ayant son ouverture en regard de l'embrayage et la commande à butée de débrayage (18) est logée dans le carter en forme de cloche (25) à proximité du palier à roulement (26) de ce carter supportant l'arbre primaire (8) en étant disposée en regard de l'embrayage et concentriquement à l'arbre primaire (8).  3. Device according to claim 1 or 2, characterized in that the housing (25) carrying the stator (5) has in cross section the shape of a bell mounted concentrically to the primary shaft (8) having its opening in view of the clutch and the clutch release control (18) is housed in the bell-shaped housing (25) near the rolling bearing (26) of this housing supporting the primary shaft (8) while being arranged opposite the clutch and concentrically to the primary shaft (8). 4. Dispositif selon la revendication 3, caractérisé en ce que le moyeu (7) du rotor (6) fait partie d'un carter présentant en section transversale la forme d'une cloche portant le rotor (6) et montée concentriquement à l'arbre primaire (8) en étant adjacente à la cloche du carter (25) portant le stator (5) à l'opposé de l'embrayage de manière que la cloche du carter (25) portant le stator (5) soit logée dans la cloche du carter portant le rotor (6).  4. Device according to claim 3, characterized in that the hub (7) of the rotor (6) is part of a housing having in cross section the shape of a bell carrying the rotor (6) and concentrically mounted to the primary shaft (8) adjacent to the housing bell (25) carrying the stator (5) opposite the clutch so that the housing bell (25) carrying the stator (5) is housed in the housing housing bell carrying the rotor (6). 5. Dispositif selon la revendication 4, caractérisé en ce que la cloche du carter (25) portant le stator (5) se termine dans la cloche du carter portant le rotor (6) par une paroi annulaire (25b) dans laquelle est monté le palier à roulement (26) du moyeu (7) du rotor (8).  5. Device according to claim 4, characterized in that the housing bell (25) carrying the stator (5) ends in the housing bell carrying the rotor (6) by an annular wall (25b) in which is mounted rolling bearing (26) of the hub (7) of the rotor (8). 6. Dispositif selon l'une des revendications  6. Device according to one of the claims précédentes, caractérisé en ce que la liaison à cannelures du moyeu (7) du rotor (6) à l'arbre primaire (8) est lubrifiée par l'huile présente dans la boîte de vitesses.  previous, characterized in that the spline connection of the hub (7) of the rotor (6) to the input shaft (8) is lubricated by the oil present in the gearbox. 7. Dispositif selon la revendication 6 lorsque considérée en combinaison avec la revendication 2, caractérisé en ce qu'un joint torique (27) est monté sur l'arbre primaire (8) à l'intérieur de la cloche du carter (25) portant le stator (5) et est centré dans l'extrémité du manchon (7b) du moyeu (7) du rotor (6).  7. Device according to claim 6 when considered in combination with claim 2, characterized in that an O-ring (27) is mounted on the primary shaft (8) inside the bell housing housing (25). the stator (5) and is centered in the end of the sleeve (7b) of the hub (7) of the rotor (6). 8. Dispositif selon l'une des revendications  8. Device according to one of the claims précédentes, caractérisé en ce que l'arbre primaire (8) a son extrémité opposée au moyeu (7) du rotor (6) montée à rotation par un palier lisse (13) dans un trou borgne (12a) réalisé en bout de l'arbre vilebrequin (12) du moteur.  previous, characterized in that the primary shaft (8) has its opposite end to the hub (7) of the rotor (6) rotatably mounted by a sliding bearing (13) in a blind hole (12a) formed at the end of the crankshaft (12) of the engine. 9. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la commande à butée de débrayage (18) est du type hydraulique.  9. Device according to one of the preceding claims, characterized in that the control clutch release (18) is of the hydraulic type.
FR0500989A 2005-02-01 2005-02-01 DEVICE FOR COUPLING BETWEEN THE ROTOR OF A REVERSIBLE ROTATING ELECTRIC MACHINE AND THE PRIMARY SHAFT OF THE GEARBOX OF A THERMAL MOTOR OF A MOTOR VEHICLE Expired - Fee Related FR2881382B1 (en)

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FR0500989A FR2881382B1 (en) 2005-02-01 2005-02-01 DEVICE FOR COUPLING BETWEEN THE ROTOR OF A REVERSIBLE ROTATING ELECTRIC MACHINE AND THE PRIMARY SHAFT OF THE GEARBOX OF A THERMAL MOTOR OF A MOTOR VEHICLE

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FR0500989A FR2881382B1 (en) 2005-02-01 2005-02-01 DEVICE FOR COUPLING BETWEEN THE ROTOR OF A REVERSIBLE ROTATING ELECTRIC MACHINE AND THE PRIMARY SHAFT OF THE GEARBOX OF A THERMAL MOTOR OF A MOTOR VEHICLE

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FR2995833A1 (en) * 2012-09-25 2014-03-28 Valeo Equip Electr Moteur HYBRID MODULE FOR A MOTOR VEHICLE TRANSMISSION ASSEMBLY
WO2014049242A1 (en) * 2012-09-25 2014-04-03 Valeo Equipements Electriques Moteur Device for a hybrid vehicle including improved attachment of a clutch-release bearing to an element for supporting the stator of an electric machine
FR3005903A1 (en) * 2013-05-22 2014-11-28 Valeo Equip Electr Moteur DEVICE FOR A HYBRID VEHICLE WITH IMPROVED FASTENING OF A CLUTCH FASTENING ON A STATOR SUPPORT ELEMENT OF AN ELECTRIC MACHINE
WO2015040285A1 (en) * 2013-09-20 2015-03-26 Valeo Equipements Electriques Moteur Hybrid module for motor vehicle transmission assembly
US9662966B2 (en) 2012-09-25 2017-05-30 Valeo Equipements Electriques Moteur Device for hybrid vehicle with anti-dust flange between electric machine and reaction plate
US9751391B2 (en) 2012-09-25 2017-09-05 Valeo Equipements Electriques Moteur Transmission assembly for a motor vehicle

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FR2830305A1 (en) * 2001-09-28 2003-04-04 Valeo Transmission for parallel hybrid vehicle has hydraulically operated clutch with torque shock absorber the axial hydraulic jack using the rotor plate of a coaxial electrical machine as support for clutch operation
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EP1112885A1 (en) * 1999-12-30 2001-07-04 Peugeot Citroen Automobiles SA Drive shaft arrangement for a gearbox for hybrid vehicle
DE10033424A1 (en) * 2000-07-08 2002-01-17 Mannesmann Sachs Ag Electrical machine e.g. permanent synchronous machine in drive train of vehicle, has rotor held by carrier on shaft with system of guides in rotor and stator which are disengaged axially for rotary motion of electrical machine
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008002442A1 (en) 2008-06-16 2009-12-17 Zf Friedrichshafen Ag Bearing arrangement for a drive shaft of a transmission
FR2995833A1 (en) * 2012-09-25 2014-03-28 Valeo Equip Electr Moteur HYBRID MODULE FOR A MOTOR VEHICLE TRANSMISSION ASSEMBLY
WO2014049249A1 (en) * 2012-09-25 2014-04-03 Valeo Equipements Electriques Moteur Hybrid module for motor vehicle transmission assembly
WO2014049242A1 (en) * 2012-09-25 2014-04-03 Valeo Equipements Electriques Moteur Device for a hybrid vehicle including improved attachment of a clutch-release bearing to an element for supporting the stator of an electric machine
CN104755297A (en) * 2012-09-25 2015-07-01 法雷奥电机设备公司 Device for hybrid vehicle including improved attachment of clutch-release bearing to element for supporting the stator of electric machine
US9662966B2 (en) 2012-09-25 2017-05-30 Valeo Equipements Electriques Moteur Device for hybrid vehicle with anti-dust flange between electric machine and reaction plate
CN104755297B (en) * 2012-09-25 2017-07-28 法雷奥电机设备公司 For the device of hybrid motor vehicle, with the modified form fixture being fixed on clutch bearing on the supporting member of the stator of motor
US9751391B2 (en) 2012-09-25 2017-09-05 Valeo Equipements Electriques Moteur Transmission assembly for a motor vehicle
FR3005903A1 (en) * 2013-05-22 2014-11-28 Valeo Equip Electr Moteur DEVICE FOR A HYBRID VEHICLE WITH IMPROVED FASTENING OF A CLUTCH FASTENING ON A STATOR SUPPORT ELEMENT OF AN ELECTRIC MACHINE
WO2015040285A1 (en) * 2013-09-20 2015-03-26 Valeo Equipements Electriques Moteur Hybrid module for motor vehicle transmission assembly

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