FR2839759A1 - Elastic coupling between motor vehicle internal combustion engine crankshaft and electric machine rotor, has elastomeric insert blocks in one housing section - Google Patents

Elastic coupling between motor vehicle internal combustion engine crankshaft and electric machine rotor, has elastomeric insert blocks in one housing section Download PDF

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Publication number
FR2839759A1
FR2839759A1 FR0206106A FR0206106A FR2839759A1 FR 2839759 A1 FR2839759 A1 FR 2839759A1 FR 0206106 A FR0206106 A FR 0206106A FR 0206106 A FR0206106 A FR 0206106A FR 2839759 A1 FR2839759 A1 FR 2839759A1
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Prior art keywords
housing part
hub
rotor
plate
integral
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Granted
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FR0206106A
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French (fr)
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FR2839759B1 (en
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Francois Honorio
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PSA Automobiles SA
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Peugeot Citroen Automobiles SA
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    • 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
    • B60K6/38—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 driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • B60K6/22—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
    • B60K6/405—Housings
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/127—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs using plastics springs combined with other types of springs
    • 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
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1815—Rotary generators structurally associated with reciprocating piston engines
    • 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)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Power Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The elastic coupling between an engine crankshaft and the rotor of an electric machine has a housing section (35) fixed to the main clutch cover (22) and a second housing section (36) fixed in the rotor hub (6). The second housing section has elastomeric block inserts to allow a limited relative rotation between the housing sections.

Description

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La présente invention concerne un dispositif d'accouplement élastique entre le rotor d'une machine électrique tournante réversible et l'arbre vilebrequin d'un moteur thermique notamment d'un groupe motopropulseur hybride d'un véhicule automobile.  The present invention relates to an elastic coupling device between the rotor of a reversible rotary electrical machine and the crankshaft of a heat engine, in particular of a hybrid powertrain of a motor vehicle.

Le rotor de la machine électrique tournante, qui peut être un alternateur-démarreur, est solidaire d'un moyeu monté coaxialement à l'arbre vilebrequin entraînant en rotation un volant d'inertie par l'intermédiaire d'un couvercle d'embrayage solidaire en rotation de ce volant.  The rotor of the rotary electric machine, which can be an alternator-starter, is integral with a hub mounted coaxially with the crankshaft driving in rotation a flywheel by means of a clutch cover integral in rotation of this steering wheel.

Des moyens d'accouplement sont prévus entre le moyeu du rotor de la machine électrique et le couvercle d'embrayage.  Coupling means are provided between the hub of the rotor of the electric machine and the clutch cover.

Cependant, ces moyens d'accouplement ont pour inconvénient d'être sensibles aux déplacements du vilebrequin ainsi qu'au fonctionnement acyclique du moteur thermique et aux déformations géométriques de cet arbre, provoquant de la sorte des dysfonctionnements de la machine électrique. En outre, les moyens d'accouplement ne sont pas adaptés pour compenser un désalignement pouvant intervenir entre le rotor de la machine électrique et l'arbre vilebrequin du moteur thermique. Enfin, les moyens d'accouplement sont d'une structure relativement complexe et rendent extrêmement difficiles le montage ou le démontage du couvercle d'embrayage relativement au moyeu du rotor de la machine électrique.  However, these coupling means have the disadvantage of being sensitive to the movements of the crankshaft as well as to the acyclic operation of the heat engine and to the geometric deformations of this shaft, thereby causing malfunctions of the electric machine. In addition, the coupling means are not suitable for compensating for a misalignment which may occur between the rotor of the electric machine and the crankshaft of the heat engine. Finally, the coupling means are of a relatively complex structure and make it extremely difficult to assemble or disassemble the clutch cover relative to the hub of the rotor of the electric machine.

La présente invention a pour but d'éliminer les inconvénients ci-dessus en proposant un dispositif d'accouplement élastique entre le rotor d'une machine électrique tournante réversible et l'arbre vilebrequin d'un moteur thermique d'un groupe motopropulseur hybride d'un véhicule automobile, le rotor étant solidaire d'un moyeu monté coaxialement à l'arbre vilebrequin entraînant en rotation un volant d'inertie auquel est solidarisé en rotation un couvercle d'embrayage, et qui est caractérisé en ce qu'il comprend un boîtier d'accouplement de forme  The present invention aims to eliminate the above drawbacks by proposing an elastic coupling device between the rotor of a reversible rotary electric machine and the crankshaft of a heat engine of a hybrid powertrain of a motor vehicle, the rotor being integral with a hub mounted coaxially with the crankshaft driving in rotation a flywheel to which is attached in rotation a clutch cover, and which is characterized in that it comprises a housing form coupling

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générale annulaire interposé entre le couvercle d'embrayage et le moyeu du rotor coaxialement à ce dernier et comprenant une première partie de boîtier solidaire du couvercle d'embrayage, pouvant s'accoupler en rotation à une seconde partie de boîtier fixée dans le moyeu du rotor par l'intermédiaire de moyens élastiques de même raideur en direction circonférentielle permettant de transmettre le couple de la machine électrique et d'amortir les déplacements relatifs en rotation entre les deux parties de boîtier résultant des déplacements du vilebrequin et des acyclismes du moteur thermique et/ou des déformations géométriques de ce vilebrequin, les moyens élastiques étant conformés de façon à permettre à la première partie de boîtier d'être montée et accouplée en aveugle à la seconde partie de boîtier.  general annular interposed between the clutch cover and the rotor hub coaxial to the latter and comprising a first housing part integral with the clutch cover, which can be coupled in rotation to a second housing part fixed in the rotor hub by means of elastic means of the same stiffness in the circumferential direction making it possible to transmit the torque of the electric machine and to dampen the relative rotational displacements between the two housing parts resulting from the displacements of the crankshaft and acyclisms of the heat engine and / or geometric deformations of this crankshaft, the elastic means being shaped so as to allow the first housing part to be mounted and coupled blindly to the second housing part.

La seconde partie de boîtier comprend un plateau annulaire fixé au fond d'une cavité annulaire interne du moyeu sur une partie centrale cylindrique de ce moyeu et les moyens élastiques comprennent au moins deux blocs en matériau élastomère solidaires de la face du plateau opposée au fond du moyeu en faisant saillie de celle-ci et étant régulièrement espacés en direction circonférentielle, chaque bloc en élastomère comportant dans sa face radialement interne une rainure centrale longitudinale située entre deux parties de face interne formant rampes inclinées en sens opposés, et la première partie de boîtier comprend un plateau annulaire fixé au couvercle d'embrayage par des éléments de fixation, tels que des rivets, et au moins deux tenons radiaux externes solidaires de la face du plateau à l'opposé du couvercle d'embrayage en s'étendant perpendiculairement de celle-ci et étant régulièrement espacés en direction circonférentielle, la première partie de boîtier pouvant être accouplée en aveugle à la seconde partie de boîtier en introduisant les tenons dans le moyeu du rotor de façon qu'ils viennent chacun en appui sur l'une associée des faces en rampe située d'un côté de la rainure d'un  The second housing part comprises an annular plate fixed to the bottom of an internal annular cavity of the hub on a central cylindrical part of this hub and the elastic means comprise at least two blocks of elastomeric material secured to the face of the plate opposite the bottom of the hub projecting therefrom and being regularly spaced in circumferential direction, each elastomer block having in its radially internal face a longitudinal central groove situated between two parts of internal face forming ramps inclined in opposite directions, and the first housing part comprises an annular plate fixed to the clutch cover by fastening elements, such as rivets, and at least two external radial studs integral with the face of the plate opposite the clutch cover by extending perpendicular to that -this and being regularly spaced in circumferential direction, the first part of bo casing which can be blindly coupled to the second part of the casing by introducing the studs into the rotor hub so that they each come to bear on one associated with the ramp faces located on one side of the groove of a

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bloc en élastomère correspondant et en faisant tourner le moyeu du rotor relativement à la première partie de boîtier dans le sens approprié pour engager élastiquement les deux tenons respectivement dans les deux rainures.  corresponding elastomer block and rotating the rotor hub relative to the first housing part in the appropriate direction to elastically engage the two studs respectively in the two grooves.

Chaque bloc en élastomère est bilatéralement maintenu précontraint en direction circonférentielle entre deux pattes rigides solidaires du plateau de la seconde partie du boîtier perpendiculairement à celui-ci.  Each elastomer block is bilaterally held prestressed in the circumferential direction between two rigid tabs integral with the plate of the second part of the housing perpendicularly thereto.

La face radialement interne de chaque bloc en élastomère est formée sur sa majeure partie par une pièce en tôle emboutie solidaire du bloc et comportant les deux rampes de sens opposés et la rainure centrale.  The radially internal face of each elastomer block is formed over its major part by a stamped sheet metal part integral with the block and comprising the two ramps in opposite directions and the central groove.

Chaque tenon est situé au sommet d'une pièce en tôle en forme générale de dôme fixée sur une paroi rigide en forme de secteur solidaire du plateau de la première partie de boîtier perpendiculairement à celui-ci, de façon à permettre un déplacement radial élastique du tenon lors de l'accouplement de la première partie de boîtier à la seconde partie de boîtier.  Each tenon is located at the top of a sheet metal part in the general shape of a dome fixed on a rigid wall in the form of a sector integral with the plate of the first housing part perpendicular to the latter, so as to allow an elastic radial displacement of the lug when coupling the first housing part to the second housing part.

Chaque bloc en élastomère est fixé sur une patte de support rigide solidaire du plateau de la seconde partie de boîtier perpendiculairement à celui-ci.  Each elastomer block is fixed to a rigid support lug integral with the plate of the second housing part perpendicular to the latter.

Le plateau de la seconde partie de boîtier est fixé sur la partie centrale cylindrique du moyeu par un circlips fixé sur cette partie et au moins une rondelle élastique montée concentriquement sur la partie centrale cylindrique et interposée entre le circlips et le plateau pour plaquer ce dernier au fond du moyeu du rotor.  The plate of the second housing part is fixed on the central cylindrical part of the hub by a circlip fixed on this part and at least one elastic washer mounted concentrically on the central cylindrical part and interposed between the circlip and the plate to press the latter to the bottom of the rotor hub.

Une rondelle à friction est montée concentriquement sur la partie cylindrique centrale du moyeu entre le plateau de la seconde partie de boîtier et le fond du moyeu du rotor.  A friction washer is mounted concentrically on the central cylindrical part of the hub between the plate of the second housing part and the bottom of the rotor hub.

De préférence, on prévoit trois blocs en élastomère dans lesquels peuvent s'engager respectivement trois tenons d'accouplement.  Preferably, three elastomer blocks are provided in which three coupling pins can engage respectively.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci  The invention will be better understood and other aims, characteristics, details and advantages thereof

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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 le dispositif de l'invention permettant d'accoupler le rotor d'une machine électrique tournante et l'arbre vilebrequin d'un moteur thermique ; - la figure 2 est une vue en section suivant la ligne II-II de la figure 1 ; - la figure 3 est une vue en section suivant la ligne III-III de la figure 2 ; - la figure 4 est une vue de côté de l'ensemble couvercle d'embrayage et moyeu de rotor assemblés par le dispositif d'accouplement de l'invention ; - la figure 5 est une vue en coupe suivant la ligne V-V de la figure 4 ; - la figure 6 est une vue en perspective éclatée du dispositif d'accouplement de l'invention ; et - la figure 7 est une vue en perspective éclatée de l'ensemble à couvercle d'embrayage et rotor muni du dispositif d'accouplement de l'invention.  will appear more clearly in the explanatory description which follows, made with reference to the appended drawings given solely by way of example illustrating an embodiment of the invention and in which: FIG. 1 is a view in longitudinal section representing the device for the invention making it possible to couple the rotor of a rotary electrical machine and the crankshaft of a heat engine; - Figure 2 is a sectional view along line II-II of Figure 1; - Figure 3 is a sectional view along line III-III of Figure 2; - Figure 4 is a side view of the clutch cover and rotor hub assembly assembled by the coupling device of the invention; - Figure 5 is a sectional view along the line V-V of Figure 4; - Figure 6 is an exploded perspective view of the coupling device of the invention; and - Figure 7 is an exploded perspective view of the clutch cover and rotor assembly provided with the coupling device of the invention.

En se reportant tout d'abord à la figure 1, la référence 1 désigne une machine électrique tournante ou alternateur-démarreur, logée dans un carter d'embrayage 2 fixé entre le carter 3 de boîte de vitesses et le carter 4 du moteur thermique d'un véhicule automobile.  Referring first to Figure 1, the reference 1 designates a rotary electrical machine or alternator-starter, housed in a clutch housing 2 fixed between the gearbox housing 3 and the housing 4 of the engine d 'a motor vehicle.

La machine électrique 1 comprend essentiellement un stator annulaire 5 qui est fixe relativement au carter d'embrayage 2 et un rotor annulaire 6 logé dans le stator fixe 5 en définissant par rapport à ce dernier un entrefer. Le rotor 6 peut être entraîné en rotation par l'arbre vilebrequin 7 du moteur thermique comme on le verra ultérieurement.  The electric machine 1 essentially comprises an annular stator 5 which is fixed relative to the clutch housing 2 and an annular rotor 6 housed in the fixed stator 5 by defining with respect to the latter a gap. The rotor 6 can be driven in rotation by the crankshaft 7 of the heat engine as will be seen later.

La référence 8 désigne le différentiel du véhicule logé dans un carter 9 et pouvant entraîner en rotation l'axe de roue 10.  The reference 8 designates the differential of the vehicle housed in a casing 9 and which can drive the wheel axle 10 in rotation.

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Le rotor 6 est monté de façon solidaire sur un moyeu de support 11 qui est monté à rotation sur un palier 12 par exemple du type à roulement à billes. Le rotor est maintenu axialement sur le moyeu 11 d'un côté par un épaulement 13 de ce moyeu et de l'autre côté par une bague annulaire 14.  The rotor 6 is mounted integrally on a support hub 11 which is rotatably mounted on a bearing 12, for example of the ball bearing type. The rotor is held axially on the hub 11 on one side by a shoulder 13 of this hub and on the other side by an annular ring 14.

L'ensemble constitué par le stator 5, le rotor 6, le moyeu 11 et le palier 12 est logé dans un carter indépendant 15 fixé au carter d'embrayage 2 par des vis de fixation (non représentées).  The assembly constituted by the stator 5, the rotor 6, the hub 11 and the bearing 12 is housed in an independent casing 15 fixed to the clutch casing 2 by fixing screws (not shown).

Le carter 15 comprend une partie centrale tubulaire 16 entourant coaxialement l'arbre primaire 17 de la boîte de vitesses et qui est monté à rotation à une extrémité dans un alésage borgne 7a de l'arbre vilebrequin 7. Le palier 12 est monté sur la partie centrale tubulaire 16 en étant maintenu coaxialement sur celle-ci par un épaulement de butée 16a situé à une extrémité de la partie 16 et un circlips 19 au voisinage de l'extrémité de celle-ci. Le moyeu 11 est en outre maintenu axialement sur le palier 12 d'une part par un circlips 20 logé dans une gorge interne du moyeu et d'autre part par un épaulement 21 du moyeu 11 en appui sur le palier 12.  The casing 15 comprises a tubular central part 16 coaxially surrounding the primary shaft 17 of the gearbox and which is rotatably mounted at one end in a blind bore 7a of the crankshaft 7. The bearing 12 is mounted on the part tubular central unit 16 while being held coaxially on the latter by an abutment shoulder 16a situated at one end of the part 16 and a circlip 19 in the vicinity of the end of the latter. The hub 11 is also held axially on the bearing 12 on the one hand by a circlip 20 housed in an internal groove of the hub and on the other hand by a shoulder 21 of the hub 11 bearing on the bearing 12.

Le moyeu 11 du rotor 6 est relié par l'intermédiaire d'un dispositif d'accouplement à un couvercle d'embrayage 22 qui est solidaire en rotation du volant d'inertie 23 du moteur par des moyens appropriés, tels que des vis 24.  The hub 11 of the rotor 6 is connected by means of a coupling device to a clutch cover 22 which is integral in rotation with the flywheel 23 of the engine by suitable means, such as screws 24.

Le rotor 6 et le moyeu 11 de la machine électrique 1 sont montés concentriquement à l'arbre vilebrequin 7 et à l'arbre primaire 17 de la boîte de vitesses.  The rotor 6 and the hub 11 of the electric machine 1 are mounted concentrically with the crankshaft 7 and with the primary shaft 17 of the gearbox.

Une butée de débrayage 25 peut être déplacée par une fourchette de commande 26 montée sur le carter d'embrayage 2 par une articulation à rotule 27 de façon à commander le déplacement en translation de la butée de débrayage 25 qui agit à son extrémité opposée à la fourchette 26 sur un diaphragme d'embrayage 28 qui agit sur un plateau d'embrayage 29 logé dans le couvercle  A clutch release bearing 25 can be moved by a control fork 26 mounted on the clutch housing 2 by a ball joint 27 so as to control the translational movement of the clutch release bearing 25 which acts at its end opposite to the fork 26 on a clutch diaphragm 28 which acts on a clutch plate 29 housed in the cover

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d'embrayage 22 en étant solidaire en rotation de celui-ci par des moyens de liaison 30 autorisant un déplacement axial du plateau 29 relativement au couvercle 22 et occupant normalement une position embrayée. Un disque d'embrayage 31 est interposé entre le plateau 29 et une face dressée, perpendiculaire à l'arbre vilebrequin 7, du volant d'inertie 23. Le disque 31, du type à friction, est relié par un accouplement flexible 32 à un moyeu 33 solidaire en rotation de l'arbre 17 de la boîte de vitesses.  clutch 22 by being integral in rotation with the latter by connecting means 30 allowing an axial displacement of the plate 29 relative to the cover 22 and normally occupying a engaged position. A clutch disc 31 is interposed between the plate 29 and an upright face, perpendicular to the crankshaft 7, of the flywheel 23. The disc 31, of the friction type, is connected by a flexible coupling 32 to a hub 33 integral in rotation with the shaft 17 of the gearbox.

En position embrayée de l'embrayage constitué par le plateau 29 et le disque 31, la rotation de l'arbre vilebrequin 7 est transmise à l'arbre primaire 17 de la boîte de vitesses 3. En position débrayée de cet embrayage, lors du passage d'un rapport de vitesse, l'arbre vilebrequin 7 est désaccouplé de l'arbre primaire 17.  In the clutched position of the clutch formed by the plate 29 and the disc 31, the rotation of the crankshaft 7 is transmitted to the primary shaft 17 of the gearbox 3. In the disengaged position of this clutch, during the passage a gear ratio, the crankshaft 7 is uncoupled from the primary shaft 17.

Selon l'invention, le dispositif d'accouplement du couvercle d'embrayage 22 au moyeu 11 du rotor 6 comprend comme cela ressort également des figures 2 à 7, un boîtier d'accouplement 34 de forme générale annulaire interposé entre le couvercle d'embrayage 22 et le moyeu 11 en étant pratiquement logé dans une cavité interne généralement annulaire de ce moyeu coaxialement à l'arbre primaire 17 ou à l'arbre vilebrequin 7.  According to the invention, the clutch cover coupling device 22 to the hub 11 of the rotor 6 also comprises, as can be seen from FIGS. 2 to 7, a coupling box 34 of generally annular shape interposed between the clutch cover 22 and the hub 11 being practically housed in a generally annular internal cavity of this hub coaxially with the primary shaft 17 or the crankshaft 7.

Le boîtier d'accouplement 34 comprend une première partie de boîtier 35 solidaire du couvercle d'embrayage 22 et pouvant s'accoupler en rotation à une seconde partie 36 du boîtier 34 par l'intermédiaire de moyens élastiques 37 qui sont conformées de façon à permettre à la première partie de boîtier 35 d'être montée et accouplée en aveugle à la seconde partie de boîtier 36 comme on le verra ultérieurement.  The coupling housing 34 comprises a first housing part 35 integral with the clutch cover 22 and capable of being coupled in rotation to a second part 36 of the housing 34 by means of elastic means 37 which are shaped so as to allow the first housing part 35 to be mounted and coupled blindly to the second housing part 36 as will be seen later.

La seconde partie de boîtier 36 comprend un plateau généralement annulaire 38 fixé au fond de la cavité annulaire interne du moyeu 11 sur une partie centrale cylindrique interne 11a de ce moyeu et les moyens  The second housing part 36 comprises a generally annular plate 38 fixed to the bottom of the internal annular cavity of the hub 11 on an internal cylindrical central part 11a of this hub and the means

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élastiques 37 sont constitués par au moins deux blocs en matériau élastomère solidaires de la face du plateau 38 opposée au fond de la cavité interne du moyeu 11. De préférence, la seconde partie de boîtier 36 comprend trois blocs en élastomère 37 régulièrement espacés en direction circonférentielle et faisant saillie du plateau perpendiculairement à celui-ci. Chaque bloc 37 est fixé à une patte de support rigide 39 solidaire du plateau 38 perpendiculairement à celui-ci en sens opposés au fond de la cavité interne du moyeu 11. Chaque patte 39 peut être constituée par une languette curviligne fixée à un bord curviligne externe du plateau 38 de la seconde partie de boîtier 36 et le bloc correspondant 37 est de forme pouvant être fixé, par exemple par collage ou surmoulage, à la face radialement interne de la languette 39.  elastic 37 consist of at least two blocks of elastomeric material integral with the face of the plate 38 opposite the bottom of the internal cavity of the hub 11. Preferably, the second housing part 36 comprises three blocks of elastomer 37 regularly spaced in circumferential direction and projecting from the plate perpendicular thereto. Each block 37 is fixed to a rigid support lug 39 integral with the plate 38 perpendicularly to the latter in opposite directions to the bottom of the internal cavity of the hub 11. Each lug 39 may be constituted by a curvilinear tongue fixed to an external curvilinear edge of the plate 38 of the second housing part 36 and the corresponding block 37 is of a shape which can be fixed, for example by gluing or overmolding, to the radially internal face of the tongue 39.

Chaque bloc en élastomère 37 est en outre bilatéralement maintenu précontraint en direction circonférentielle entre deux pattes parallèles rigides 40 solidaires du plateau 38 en s'étendant perpendiculairement à celui-ci à l'opposé du fond de la cavité interne du moyeu 11.  Each elastomer block 37 is also bilaterally held prestressed in the circumferential direction between two rigid parallel tabs 40 integral with the plate 38 by extending perpendicularly to the latter opposite the bottom of the internal cavity of the hub 11.

La face radialement interne de chaque bloc en élastomère 37 est constituée par une pièce en tôle 41 solidaire du bloc 37, par exemple par collage ou par surmoulage, et emboutie de façon à définir sur cette face interne une rainure centrale longitudinale 42, c'est-àdire parallèle à l'axe longitudinal X-X' du moyeu 11 assemblé au couvercle d'embrayage 22 par le dispositif d'accouplement et confondu à l'axe longitudinal de l'arbre vilebrequin 7, et deux parties de face interne en forme de rampe 43 situées respectivement des deux côtés de la rainure 42 et inclinées en sens opposés l'une de l'autre.  The radially internal face of each elastomer block 37 is constituted by a sheet metal part 41 secured to the block 37, for example by gluing or by overmolding, and stamped so as to define on this internal face a longitudinal central groove 42, this is -in other words parallel to the longitudinal axis XX ′ of the hub 11 assembled to the clutch cover 22 by the coupling device and merged with the longitudinal axis of the crankshaft 7, and two parts of the internal face in the form of a ramp 43 located respectively on both sides of the groove 42 and inclined in opposite directions from one another.

Le plateau 38 de la seconde partie de boîtier 36 est fixé dans le moyeu 11 par un circlips 44 fixé dans une gorge externe de la partie centrale cylindrique lia du moyeu 11 et au moins une rondelle élastique 45 montée  The plate 38 of the second housing part 36 is fixed in the hub 11 by a circlip 44 fixed in an external groove of the central cylindrical part 11a of the hub 11 and at least one elastic washer 45 mounted

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concentriquement sur la partie lia en étant interposée entre le circlips 44 et le plateau annulaire 38 pour plaquer ce dernier au fond de la cavité interne du moyeu 11. De préférence, on prévoit trois rondelles élastiques 45.  concentrically on the part 11a, being interposed between the circlip 44 and the annular plate 38 to press the latter at the bottom of the internal cavity of the hub 11. Preferably, three elastic washers 45 are provided.

Une rondelle à friction 46 est montée concentriquement sur la partie cylindrique centrale 11a entre le plateau 38 et le fond du moyeu 11.  A friction washer 46 is mounted concentrically on the central cylindrical part 11a between the plate 38 and the bottom of the hub 11.

La première partie de boîtier 35 comprend un plateau annulaire 47 fixé au couvercle d'embrayage 22 par des éléments de fixation 48, tels que par exemple des rivets, et au moins deux tenons radiaux externes 49 solidaires de la face du plateau 47 opposée au couvercle d'embrayage 22 en s'étendant perpendiculairement de celle-ci et étant régulièrement espacés en direction circonférentielle. De préférence, trois tenons 49 sont prévus et coopèrent respectivement avec les trois blocs en élastomère 37 pour permettre l'accouplement en rotation de la première partie de boîtier 35 à la seconde partie de boîtier 36 et donc d'accoupler le couvercle d'embrayage 22 au rotor 11.  The first housing part 35 comprises an annular plate 47 fixed to the clutch cover 22 by fixing elements 48, such as for example rivets, and at least two external radial pins 49 secured to the face of the plate 47 opposite the cover. clutch 22 extending perpendicularly therefrom and being regularly spaced in the circumferential direction. Preferably, three pins 49 are provided and cooperate respectively with the three elastomer blocks 37 to allow the rotational coupling of the first housing part 35 to the second housing part 36 and therefore to couple the clutch cover 22 to rotor 11.

Chaque tenon 49 fait partie d'une pièce en tôle emboutie de façon que le tenon 49 en constitue le sommet et les parois latérales rectangulaires 50 s'étendant de chaque côté du tenon 49 en définissant une forme générale de dôme fixé sur une paroi rigide en forme de secteur 51 solidaire du plateau 47 en s'étendant perpendiculairement à celui-ci et étant située au niveau de la partie correspondante de bord circulaire interne définissant l'ouverture centrale du plateau 47. Les trois parois en secteur 51 sont ainsi disposées concentriquement à l'axe X-X' . Les pièces en forme de dôme 49,50 sont fixées aux secteurs 51, au voisinage des extrémités libres de leurs parois latérales 50, par des rivets 52. De la sorte, les tenons 49 font saillie radialement extérieurement en étant élastiquement déformables, par les parois latérales 50, suivant une direction radiale.  Each tenon 49 is part of a piece of stamped sheet metal so that the tenon 49 constitutes the top and the rectangular side walls 50 extending on each side of the tenon 49 by defining a general shape of dome fixed on a rigid wall in form of sector 51 integral with the plate 47, extending perpendicularly to the latter and being situated at the level of the corresponding portion of internal circular edge defining the central opening of the plate 47. The three walls in sector 51 are thus arranged concentrically with axis XX '. The dome-shaped parts 49.50 are fixed to the sectors 51, in the vicinity of the free ends of their side walls 50, by rivets 52. In this way, the pins 49 project radially outwardly being elastically deformable, by the walls lateral 50, in a radial direction.

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L'accouplement de la première partie de boîtier 35 à la seconde partie de boîtier 36 ressort déjà de la description qui précède et va être maintenant expliqué.  The coupling of the first housing part 35 to the second housing part 36 is already apparent from the above description and will now be explained.

Après avoir fixé la seconde partie de boîtier 36 et ses blocs en élastomère 37 dans le moyeu 11 et la première partie de boîtier 35 et ses tenons 49 au couvercle d'embrayage 22 lui-même fixé au carter 4 du moteur thermique, ce dernier est positionné relativement au rotor 6 de la machine électrique 1 pour amener la première partie de boîtier 35 en regard du moyeu 11. Ensuite, le moteur est déplacé de façon à introduire en aveugle la première partie de boîtier 35 dans le moyeu 11 en amenant les tenons 49 en appui respectivement sur les faces en rampe correspondantes des blocs en élastomère 37. Par alimentation de la machine électrique 1, le rotor 6 et le moyeu 11 ainsi que la seconde partie de boîtier 36 et ses blocs en élastomère 37 sont tournés dans le sens approprié et d'une valeur d'angle déterminée de façon à déplacer les tenons 49 le long des faces en rampe correspondantes 43 avec déplacement en direction radiale interne de ces tenons à l'encontre de la force élastique de rappel des parois latérales 50 et à engager élastiquement les tenons 49 respectivement dans les gorges 42, chacune de section transversale en forme de V.  After having fixed the second housing part 36 and its elastomer blocks 37 in the hub 11 and the first housing part 35 and its pins 49 to the clutch cover 22 itself fixed to the casing 4 of the heat engine, the latter is positioned relative to the rotor 6 of the electric machine 1 to bring the first housing part 35 facing the hub 11. Then, the motor is moved so as to blindly insert the first housing part 35 in the hub 11 by bringing the pins 49 bearing respectively on the corresponding ramp faces of the elastomer blocks 37. By powering the electric machine 1, the rotor 6 and the hub 11 as well as the second housing part 36 and its elastomer blocks 37 are turned in the direction suitable and with a value of angle determined so as to move the studs 49 along the corresponding ramp faces 43 with displacement in the internal radial direction of these studs against of the elastic return force of the side walls 50 and of elastically engaging the pins 49 respectively in the grooves 42, each of V-shaped cross section.

Lors d'un fonctionnement acyclique du moteur thermique ou de déformations géométriques du vilebrequin de ce moteur, les écarts en torsion résultant appliqués entre les deux parties 35, 36 du boîtier d'accouplement 34 sont amortis par les blocs en élastomère 37 sur lesquels agissent les tenons 49 suivant le sens du mouvement de torsion. Les blocs en élastomère 37 sont montés au plateau 38 de la seconde partie de boîtier 36 de façon à procurer la même raideur en direction circonférentielle.  During acyclic operation of the heat engine or of geometric deformations of the crankshaft of this engine, the resulting torsional deviations applied between the two parts 35, 36 of the coupling housing 34 are absorbed by the elastomer blocks 37 on which the let us hold 49 in the direction of the torsional movement. The elastomer blocks 37 are mounted on the plate 38 of the second housing part 36 so as to provide the same stiffness in the circumferential direction.

Le boîtier 36 a ainsi une double fonction d'une part d'amortissement ou de limiteur de couple permettant la filtration des déplacements du vilebrequin et du  The housing 36 thus has a double function on the one hand of damping or of torque limiter allowing the filtration of the movements of the crankshaft and of the

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fonctionnement acyclique du moteur thermique et d'autre part de liaison à rotation entre le moyeu 11 du rotor 6 et le couvercle d'embrayage 22. Le dispositif d'accouplement est conçu de façon à permettre un montage automatique en aveugle et de façon autocentrée de la première partie de boîtier 35 à la seconde partie de boîtier 36 logée dans le moyeu 11. acyclic operation of the heat engine and, on the other hand, of a rotational link between the hub 11 of the rotor 6 and the clutch cover 22. The coupling device is designed so as to allow automatic blind and self-centering mounting of the first housing part 35 to the second housing part 36 housed in the hub 11.

Claims (9)

REVENDICATIONS 1. Dispositif d'accouplement élastique entre le rotor (6) d'une machine électrique tournante réversible (1) et l'arbre vilebrequin (7) d'un moteur thermique d'un groupe motopropulseur hybride d'un véhicule automobile, le rotor (6) étant solidaire d'un moyeu (11) monté coaxialement à l'arbre vilebrequin (7) entraînant en rotation un volant d'inertie (23) auquel est solidarisé en rotation un couvercle d'embrayage (22), caractérisé en ce qu'il comprend un boîtier d'accouplement (34) de forme générale annulaire interposé entre le couvercle d'embrayage (22) et le moyeu (11) du rotor (6) coaxialement à ce dernier et comprenant une première partie de boîtier (35) solidaire du couvercle d'embrayage (22), pouvant s'accoupler en rotation à une seconde partie de boîtier (36) fixée dans le moyeu (11) du rotor par l'intermédiaire de moyens élastiques (37) de même raideur en direction circonférentielle permettant de transmettre le couple de la machine électrique (1) et d'amortir les déplacements relatifs en rotation entre les deux parties de boîtier (35,36) résultant des déplacements du vilebrequin (7) et des acyclismes du moteur thermique et /ou des déformations géométriques de ce vilebrequin, les moyens élastiques (37) étant conformés de façon à permettre à la première partie de boîtier (35) d'être montée et accouplée en aveugle à la seconde partie de boîtier (36). 1. Elastic coupling device between the rotor (6) of a reversible rotary electrical machine (1) and the crankshaft (7) of a heat engine of a hybrid powertrain of a motor vehicle, the rotor (6) being integral with a hub (11) mounted coaxially with the crankshaft (7) driving in rotation a flywheel (23) to which is attached in rotation a clutch cover (22), characterized in that that it comprises a coupling housing (34) of generally annular shape interposed between the clutch cover (22) and the hub (11) of the rotor (6) coaxially with the latter and comprising a first housing part (35 ) integral with the clutch cover (22), which can be coupled in rotation to a second housing part (36) fixed in the hub (11) of the rotor by means of elastic means (37) of the same stiffness in direction circumferential to transmit the torque of the electric machine (1) and am ortir the relative rotational displacements between the two housing parts (35,36) resulting from the displacements of the crankshaft (7) and of the acyclisms of the heat engine and / or of the geometric deformations of this crankshaft, the elastic means (37) being shaped so as to allow the first housing part (35) to be mounted and blindly coupled to the second housing part (36). 2. Dispositif selon la revendication 1, caractérisé en ce que la seconde partie de boîtier (36) comprend un plateau annulaire (38) fixé au fond d'une cavité annulaire interne du moyeu (11) sur une partie centrale cylindrique (lia) de ce moyeu et les moyens élastiques comprennent au moins deux blocs en matériau élastomère (37) solidaires de la face du plateau (38) opposée au fond du moyeu (11) en faisant saillie de celle-ci et  2. Device according to claim 1, characterized in that the second housing part (36) comprises an annular plate (38) fixed to the bottom of an internal annular cavity of the hub (11) on a cylindrical central part (11a) of this hub and the elastic means comprise at least two blocks of elastomeric material (37) integral with the face of the plate (38) opposite the bottom of the hub (11) projecting therefrom and <Desc/Clms Page number 12><Desc / Clms Page number 12> étant régulièrement espacés en direction circonférentielle, chaque bloc en élastomère (37) comportant dans sa face radialement interne une rainure centrale longitudinale (42) située entre deux parties de face interne en rampes (43) inclinées en sens opposés, et la première partie de boîtier (35) comprend un plateau annulaire (47) fixé au couvercle d'embrayage (22) par des éléments de fixation (48), tels que des rivets, et au moins deux tenons radiaux externes (49) solidaires de la face du plateau (47) à l'opposé du couvercle d'embrayage (22) en s'étendant perpendiculairement de celle-ci et étant régulièrement espacés en direction circonférentielle, la première partie de boîtier (35) pouvant être accouplée en aveugle à la seconde partie de boîtier (36) en introduisant les tenons (49) dans le moyeu (11) du rotor de façon qu'ils viennent chacun en appui sur l'une associée des faces en rampe (43) située d'un côté de la rainure (42) d'un bloc en élastomère correspondant (37) et en faisant tourner le moyeu (11) du rotor (6) relativement à la première partie de boîtier (35) dans le sens approprié pour engager élastiquement les deux tenons (49) respectivement dans les deux rainures (42) .  being regularly spaced in circumferential direction, each elastomer block (37) comprising in its radially internal face a longitudinal central groove (42) located between two parts of the internal face in ramps (43) inclined in opposite directions, and the first housing part (35) comprises an annular plate (47) fixed to the clutch cover (22) by fixing elements (48), such as rivets, and at least two external radial pins (49) integral with the face of the plate ( 47) opposite the clutch cover (22) extending perpendicularly therefrom and being regularly spaced in the circumferential direction, the first housing part (35) being able to be blind coupled to the second housing part (36) by inserting the pins (49) into the hub (11) of the rotor so that they each come to bear on one associated with the ramp faces (43) located on one side of the groove (42) of an elastomer block e corresponding (37) and rotating the hub (11) of the rotor (6) relative to the first housing part (35) in the appropriate direction to resiliently engage the two pins (49) respectively in the two grooves (42) . 3. Dispositif selon la revendication 2, caractérisé en ce que chaque bloc en élastomère (37) est bilatéralement maintenu précontraint en direction circonférentielle entre deux pattes rigides (40) solidaires du plateau (38) de la seconde partie de boîtier (36) perpendiculairement à celui-ci.  3. Device according to claim 2, characterized in that each elastomer block (37) is bilaterally maintained prestressed in circumferential direction between two rigid tabs (40) integral with the plate (38) of the second housing part (36) perpendicular to this one. 4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que la face radialement interne de chaque bloc en élastomère (37) est formée sur sa majeure partie par une pièce en tôle emboutie solidaire du bloc et comportant les deux rampes de sens opposés (43) et la rainure centrale (42) .  4. Device according to claim 2 or 3, characterized in that the radially internal face of each elastomer block (37) is formed over its major part by a stamped sheet metal part integral with the block and comprising the two ramps of opposite directions ( 43) and the central groove (42). 5. Dispositif selon l'une des revendications 2 à 4, caractérisé en ce que chaque tenon (49) est situé au  5. Device according to one of claims 2 to 4, characterized in that each stud (49) is located at <Desc/Clms Page number 13><Desc / Clms Page number 13> sommet d'une pièce en tôle en forme générale de dôme (50) fixée sur une paroi rigide en forme de secteur (51) solidaire du plateau (47) de la première partie de boîtier (35) perpendiculairement à celui-ci, de façon à permettre un déplacement radial élastique du tenon (49) lors de l'accouplement de la première partie de boîtier (35) à la seconde partie de boîtier (36).  top of a generally domed sheet metal part (50) fixed to a rigid sector-shaped wall (51) integral with the plate (47) of the first housing part (35) perpendicularly thereto, so allowing an elastic radial displacement of the post (49) when the first housing part (35) is coupled to the second housing part (36). 6. Dispositif selon l'une des revendications 2 à 5, caractérisé en ce que chaque bloc en élastomère (37) est fixé sur une patte de support rigide (39) solidaire du plateau (38) de la seconde partie de boîtier (36) perpendiculairement à celui-ci.  6. Device according to one of claims 2 to 5, characterized in that each elastomer block (37) is fixed to a rigid support tab (39) integral with the plate (38) of the second housing part (36) perpendicular to it. 7. Dispositif selon l'une des revendications 2 à 6, caractérisé en ce que le plateau (38) de la seconde partie de boîtier (36) est fixé sur la partie centrale cylindrique (lla) du moyeu (11) par un circlips (44) fixé sur cette partie et au moins une rondelle élastique (45) montée concentriquement sur cette partie et interposée entre le circlips (44) et le plateau (38) pour plaquer ce dernier au fond du moyeu (11) du rotor (6).  7. Device according to one of claims 2 to 6, characterized in that the plate (38) of the second housing part (36) is fixed to the cylindrical central part (lla) of the hub (11) by a circlip ( 44) fixed on this part and at least one elastic washer (45) mounted concentrically on this part and interposed between the circlip (44) and the plate (38) to press the latter at the bottom of the hub (11) of the rotor (6) . 8. Dispositif selon la revendication 7, caractérisé en ce qu'une rondelle à friction (46) est montée concentriquement sur la partie cylindrique centrale (lla) entre le plateau (38) de la seconde partie de boîtier (36) et le fond du moyeu (11) du rotor.  8. Device according to claim 7, characterized in that a friction washer (46) is mounted concentrically on the central cylindrical part (lla) between the plate (38) of the second housing part (36) and the bottom of the rotor hub (11). 9. Dispositif selon l'une des revendications 2 à 8, caractérisé en ce qu'il comprend trois blocs en élastomère (37) dans lesquels peuvent s'engager respectivement trois tenons d'accouplement (49). 9. Device according to one of claims 2 to 8, characterized in that it comprises three elastomer blocks (37) in which can engage respectively three coupling pins (49).
FR0206106A 2002-05-17 2002-05-17 ELASTIC COUPLING DEVICE BETWEEN THE ROTOR OF AN ELECTRIC MACHINE AND THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE Expired - Fee Related FR2839759B1 (en)

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FR0206106A FR2839759B1 (en) 2002-05-17 2002-05-17 ELASTIC COUPLING DEVICE BETWEEN THE ROTOR OF AN ELECTRIC MACHINE AND THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE

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FR0206106A FR2839759B1 (en) 2002-05-17 2002-05-17 ELASTIC COUPLING DEVICE BETWEEN THE ROTOR OF AN ELECTRIC MACHINE AND THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014117980A1 (en) * 2013-02-01 2014-08-07 Zf Friedrichshafen Ag Structural unit for a hybrid powertrain
WO2015155137A1 (en) * 2014-04-11 2015-10-15 Jaguar Land Rover Limited Drive arrangement with integrated damper and clutch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782479A1 (en) * 1998-08-21 2000-02-25 Luk Lamellen & Kupplungsbau Drive cord or its component, especially for motor vehicle with combustion engine and/or gearing, having electric machine with rotor which can be disengaged by at least one clutch
US20010015586A1 (en) * 1999-12-29 2001-08-23 Francois Honorio Attachment device for electrical equipment, such as an alternator/starter motor, in a clutch housing of an automobile
WO2001076041A1 (en) * 2000-04-04 2001-10-11 Ap Tmf Limited Combined starter, alternator and damping unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782479A1 (en) * 1998-08-21 2000-02-25 Luk Lamellen & Kupplungsbau Drive cord or its component, especially for motor vehicle with combustion engine and/or gearing, having electric machine with rotor which can be disengaged by at least one clutch
US20010015586A1 (en) * 1999-12-29 2001-08-23 Francois Honorio Attachment device for electrical equipment, such as an alternator/starter motor, in a clutch housing of an automobile
WO2001076041A1 (en) * 2000-04-04 2001-10-11 Ap Tmf Limited Combined starter, alternator and damping unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014117980A1 (en) * 2013-02-01 2014-08-07 Zf Friedrichshafen Ag Structural unit for a hybrid powertrain
US9840139B2 (en) 2013-02-01 2017-12-12 Zf Friedrichshafen Ag Structural unit for a hybrid powertrain
WO2015155137A1 (en) * 2014-04-11 2015-10-15 Jaguar Land Rover Limited Drive arrangement with integrated damper and clutch

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