FR2974036A3 - Hybrid group e.g. hybrid motor generator group, for car, has elements dimensioned such that algebraic sum of products of rotational inertia by speeds relative to elements is zero or undervalued to reduce vibrations caused by heat engine - Google Patents

Hybrid group e.g. hybrid motor generator group, for car, has elements dimensioned such that algebraic sum of products of rotational inertia by speeds relative to elements is zero or undervalued to reduce vibrations caused by heat engine Download PDF

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Publication number
FR2974036A3
FR2974036A3 FR1153211A FR1153211A FR2974036A3 FR 2974036 A3 FR2974036 A3 FR 2974036A3 FR 1153211 A FR1153211 A FR 1153211A FR 1153211 A FR1153211 A FR 1153211A FR 2974036 A3 FR2974036 A3 FR 2974036A3
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France
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group
elements
electric machine
hybrid
gear
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FR1153211A
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French (fr)
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Matthieu Mouvet
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Renault SAS
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Renault SAS
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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
    • B60K6/36—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 transmission gearings
    • 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
    • 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
    • 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
    • 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
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • 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
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • 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

Abstract

The group (10) has an electric machine (26) including a stator (32) connected to a casing (28). A crown (20) of an epicyclic gear (18) is connected to a momentum wheel (16). A set of planetary carriers (22) of the epicyclic gear is attached to the casing. A sun gear (24) of the epicyclic gear is attached to a rotor (30) of the electric machine. Elements including the wheel and the crown are dimensioned such that an algebraic sum of products of rotational inertia by speeds relative to the elements is zero or undervalued so as to reduce vibrations caused by a heat engine (14).

Description

i "Groupe hybride à vibrations réduites pour véhicule automobile" L'invention concerne un groupe hybride pour un véhicule automobile. The invention relates to a hybrid group for a motor vehicle.

L'invention concerne plus particulièrement un groupe hybride comportant au moins un groupe motogénérateur pour un véhicule automobile comportant des éléments rotatifs dont, d'amont en aval, le vilebrequin et les parties mobiles d'un moteur thermique, un volant d'inertie lié au vilebrequin, un train io épicycloïdal comportant au moins une couronne, au moins un porte-satellite, au moins un satellite et un planétaire, et une machine électrique comportant un rotor, chacun desdits éléments présentant une inertie en rotation rapportée à l'axe d'un vilebrequin du moteur thermique, et 15 tournant à une vitesse relative déterminée par rapport audit vilebrequin du moteur thermique, les couronne, porte-satellite, satellite et planétaire du train épicycloïdal étant liés au volant d'inertie, à un carter du groupe hybride et au rotor de la machine électrique, 20 un stator de la machine électrique étant lié au carter du groupe hybride. On connaît de nombreux groupes hybrides de ce type, qu'il s'agisse de groupes hybrides motogénérateurs, ou de groupes motopropulseurs accouplés par l'intermédiaire d'une transmission 25 à une roue d'un véhicule automobile. Dans un tel groupe hybride, les éléments rotatifs axiaux de la chaîne cinématique sont soumis à des vibrations selon la direction transversale qui sont provoquées par les forces transversales qu'exercent les pistons et les bielles du moteur 30 thermique sur le vilebrequin et le carter du moteur. Ces vibrations sont préjudiciables au silence de fonctionnement du moteur. Dans le cadre d'une utilisation en motogénérateur, il est par ailleurs connu de faire fonctionner le moteur thermique selon 2 une vitesse de rotation particulière correspondant au meilleur rendement dudit moteur. De ce fait, les différents éléments rotatifs de la chaîne cinématique tournent eux aussi à une vitesse déterminée. The invention relates more particularly to a hybrid group comprising at least one motogenator group for a motor vehicle comprising rotary elements including, upstream to downstream, the crankshaft and the moving parts of a heat engine, a flywheel linked to the crankshaft, an epicyclic gear comprising at least one ring gear, at least one carrier, at least one planet and a sun gear, and an electric machine comprising a rotor, each of said elements having a rotational inertia relative to the axis of a crankshaft of the heat engine, and rotating at a relative speed determined with respect to said crankshaft of the heat engine, the crown, planet carrier, planet and sun gear of the epicyclic train being connected to the flywheel, to a housing of the hybrid group and to the rotor of the electric machine, a stator of the electric machine being connected to the housing of the hybrid group. Many hybrid groups of this type are known, be they hybrid motogenerator groups, or powertrains coupled via a wheel drive of a motor vehicle. In such a hybrid group, the axial rotary elements of the driveline are subjected to transverse directional vibrations caused by the transverse forces exerted by the pistons and the connecting rods of the engine on the crankshaft and the crankcase. . These vibrations are detrimental to the silence of operation of the engine. In the context of use in a motor generator, it is also known to operate the heat engine at a particular rotational speed corresponding to the best performance of said engine. As a result, the various rotary elements of the drive train also rotate at a determined speed.

L'invention propose de tirer parti de cette configuration pour proposer un équilibrage en rotation du groupe motogénérateur, équilibrage destiné à réduire les vibrations provoquées par le moteur thermique pour une vitesse déterminée de celui-ci. io Dans ce but, l'invention propose un groupe hybride du type décrit précédemment, caractérisé en ce que : - la couronne du train épicycloïdal est liée au volant d'inertie, - au moins un porte-satellites du train épicycloïdal est lié 15 au carter du groupe hybride, - le planétaire du train épicycloïdal est lié au rotor de la machine électrique, et en ce que les éléments sont dimensionnés de manière que la somme algébrique des produits des inerties de rotation par 20 les vitesses relatives de tous les éléments soit nulle ou minorée pour réduire les vibrations provoquées par le moteur thermique. Selon d'autres caractéristiques de l'invention : - la machine électrique est pilotée pour limiter les fluctuations de vitesse du groupe motogénérateur, 25 - le rotor de la machine électrique est de surcroît accouplé par l'intermédiaire d'un moyen d'embrayage à une transmission liée aux roues d'un véhicule automobile pour former un groupe motopropulseur, - le moyen d'embrayage est piloté et comporte un coupleur 30 à glissement piloté et/ou un simple ou double embrayage piloté, pour limiter les fluctuations de couple du groupe moto-générateur, - un embrayage supplémentaire est interposé entre le train épicycloïdal et le moteur thermique, pour permettre d'accoupler le 3 moteur thermique seulement au-dessus d'une vitesse déterminée de rotation de la transmission, - le volant moteur comporte la couronne du train épicycloïdal, - le rotor de la machine électrique comporte le planétaire du train épicycloïdal. - le rotor de la machine électrique comporte le planétaire du train épicycloïdal et le moyen d'embrayage. D'autres caractéristiques et avantages de l'invention io apparaîtront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels : - la figure 1 est une vue schématique en coupe d'un groupe hybride selon un premier mode de réalisation de l'invention 15 formant motogénérateur ; - la figure 2 est une vue schématique en coupe d'un groupe hybride selon un second mode de réalisation de l'invention formant motopropulseur ; Dans la description qui va suivre, des chiffres de référence 20 identiques désignent des pièces identiques ou ayant des fonctions similaires. Dans la description et les revendications qui suivent, on utilisera à titre non limitatif les expressions telles que orientations "axiale", et "radiale" en référence au trièdre (X, Y, Z) représenté 25 aux figures et aux définitions données dans la description. On a représenté sur les figures 1 et 2 un groupe hybride 10 pour véhicule automobile. De manière connue le groupe hybride 10 comporte au moins un groupe motogénérateur 12 comportant des éléments 30 rotatifs dont, d'amont en aval, un moteur thermique 14 comportant un vilebrequin et des parties mobiles en rotation 15, un volant d'inertie 16 lié au vilebrequin, un train épicycloïdal 18 comportant une couronne 20, au moins un porte-satellites 22, au moins un satellite 23, un planétaire 24, et une machine électrique 26. The invention proposes to take advantage of this configuration to provide a rotation balancing of the motogenerator group, balancing for reducing the vibrations caused by the engine for a given speed thereof. To this end, the invention proposes a hybrid group of the type described above, characterized in that: the ring gear of the epicyclic gear train is connected to the flywheel; at least one planet carrier of the epicyclic gear train is connected to the Hybrid group housing, - The planetary gear of the epicyclic gear is connected to the rotor of the electric machine, and in that the elements are dimensioned so that the algebraic sum of the products of the rotational inertia by the relative velocities of all the elements is zero or less to reduce the vibrations caused by the engine. According to other characteristics of the invention: the electric machine is controlled to limit the speed fluctuations of the motogenerator unit; the rotor of the electric machine is moreover coupled via a clutch means to a transmission linked to the wheels of a motor vehicle to form a powertrain, - the clutch means is controlled and comprises a controlled slip coupler 30 and / or a single or double driven clutch, to limit the torque fluctuations of the group motor-generator, - an additional clutch is interposed between the epicyclic train and the heat engine, to allow coupling the 3 engine only above a determined speed of rotation of the transmission, - the flywheel comprises the crown of the epicyclic gear train, the rotor of the electric machine comprises the sun gear of the epicyclic gear train. the rotor of the electric machine comprises the sun gear of the epicyclic gear train and the clutch means. Other features and advantages of the invention will become apparent on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which: FIG. 1 is a schematic sectional view of a hybrid group according to a first embodiment of the invention forming a motogenerator; - Figure 2 is a schematic sectional view of a hybrid group according to a second embodiment of the invention forming a powertrain; In the following description, like reference numerals denote like parts or having similar functions. In the description and the claims which follow, expressions such as "axial" and "radial" orientations with reference to the triad (X, Y, Z) shown in the figures and in the definitions given in the description will be used without limitation. . FIGS. 1 and 2 show a hybrid group 10 for a motor vehicle. In known manner the hybrid group 10 comprises at least one motogenerator group 12 comprising rotary elements, of which, from upstream to downstream, a heat engine 14 comprising a crankshaft and rotatable parts 15, a flywheel 16 connected to the crankshaft, an epicyclic gear train 18 comprising a ring gear 20, at least one planet carrier 22, at least one satellite 23, a sun gear 24, and an electric machine 26.

De manière connue, chacun desdits éléments 15, 16, 18, 20, 23, 24 présentant une inertie associée I15, 116, I20, I23, I24 en rotation rapportée à l'axe X d'un vilebrequin du moteur thermique 14, et tournant à une vitesse relative n15, n16, n2o, n23, n24 déterminée par rapport audit vilebrequin du moteur thermique 14. In known manner, each of said elements 15, 16, 18, 20, 23, 24 having an associated inertia I15, 116, I20, I23, I24 in rotation relative to the axis X of a crankshaft of the heat engine 14, and rotating at a relative speed n15, n16, n20, n23, n24 determined with respect to said crankshaft of the heat engine 14.

De manière connue, les couronne 20, porte-satellite 22, satellite 23 et planétaire 24 du train épicycloïdal 18 sont liés au In known manner, the ring gear 20, planet carrier 22, planet 23 and planet gear 24 of the epicyclic gear train 18 are connected to the

io volant d'inertie 16, à un carter 28 du groupe motopropulseur et au moins un rotor 30 de la machine électrique 26. 10 flywheel 16, a housing 28 of the powertrain and at least one rotor 30 of the electric machine 26.

Par ailleurs un stator 32 de la machine électrique 26 est lié au carter 28 du groupe hybride. Furthermore, a stator 32 of the electric machine 26 is connected to the housing 28 of the hybrid group.

D'une manière générale, l'équation du mouvement du corps 15 du moteur thermique 14 suivant l'axe axial X s'écrit : L nx lx Eléments-en-rotation Eléments-en-rotation In general, the equation of the movement of the body 15 of the heat engine 14 along the axial axis X is written as follows: L nx lx Elements-in-rotation Elements-in-rotation

où IXX désigne l'inertie totale de la chaîne cinématique, 0 son accélération angulaire, CHi(Gaz+Inertie)le couple résultant des forces de 20 combustion, nX la vitesse relative (sans unité) par rapport au vilebrequin de chaque élément de référence x en rotation et IX son inertie en rotation selon l'axe X. Plus particulièrement, si l'on applique cette relation au groupe hybride 10, il vient : 25 I X 0 --CHi(Gaz+Inertie) X 2 nx Ix 115 +116+120+N23Xn232XI22+n242X124+n30 XI20 I X 0 = -CHi(Gaz+Inertie) X I15+116+I20+N23Xn23XI22+n24XI24+n30XI30 I15 désignant l'inertie des parties mobiles 15 du moteur, telles qu'un vilebrequin ou un attelage mobile, et N23 désignant le 30 nombre de satellites du train épicycloïdal. 15 On remarquera que ces parties tournantes 15, le volant d'inertie 16 et la couronne 20 tournant à la même vitesse, elles ont par conséquent une vitesse relative de valeur égale à 1. Dans ce cas, le mouvement selon l'axe de rotation X sera annulé si la somme algébrique des produits des inerties de rotation par les vitesses relatives de tous les éléments est nulle, c'est-à-dire si : 115 + 116 + 120 + N23 X 1123 X 123 + 1124 X 124 + 1130 X 130 = 0 De même le mouvement selon l'axe de rotation X sera réduit de manière significative, voire annulé si la somme algébrique des produits des inerties de rotation par les vitesses relatives de tous les éléments est minorée, c'est à-dire si : I15+I16+I20+N23Xn23XI22+n24XI24+1130X130 1 =ket k <_ I15 +I16+I20+N23X'"L32X122+11242X124+11302X130 2 Pour que cela soit possible, il est nécessaire que la somme algébrique des produits des inerties de rotation par les vitesses 20 relatives de tous les éléments puisse être annulée ou réduite, et ceci n'est possible que si certains produits peuvent être retranchés d'autres, et par conséquent que certains termes de certains produits soit de signes négatifs. Aussi, une première condition essentielle de l'invention est 25 qu'une partie de la chaine cinématique soit entraînée en sens inverse de l'autre. A cet effet, conformément à l'invention, la couronne 20 du train épicycloïdal 18 est liée au volant d'inertie 16, au moins un porte-satellites 22 du train épicycloïdal 18 est lié au carter 28 du groupe-motopropulseur, et le planétaire 24 du 30 train épicycloïdal 18 est lié au rotor 30 de la machine électrique 26. Cette configuration permet d'entraîner toute la partie de la chaîne cinématique en aval du train épicycloïdal 18 en sens 6 inverse. Dans ce cas la valeur algébrique des produits des produits des inerties de rotation par les vitesses relatives des planétaire 24 et rotor 26 de la machine électrique sont de signes négatifs et l'expression ci-dessus peut être annulée ou minorée. where IXX denotes the total inertia of the kinematic chain, 0 its angular acceleration, CHi (Gas + Inertia) the torque resulting from the combustion forces, nX the relative speed (without unit) with respect to the crankshaft of each reference element x in rotation and IX its inertia in rotation along the axis X. More particularly, if one applies this relation to the hybrid group 10, it comes: IX 0 - CHi (Gas + Inertia) X 2 nx Ix 115 + 116 + 120 + N23Xn232XI22 + n242X124 + n30 XI20 IX 0 = -CHi (Gas + Inertia) X I15 + 116 + I20 + N23Xn23XI22 + n24XI24 + n30XI30 I15 designating the inertia of the moving parts 15 of the engine, such as a crankshaft or a moving hitch, and N23 denoting the number of planetary gear wheels. It will be noted that these rotating parts 15, the flywheel 16 and the ring 20 rotating at the same speed, they therefore have a relative speed of value equal to 1. In this case, the movement along the axis of rotation X will be canceled if the algebraic sum of the products of rotational inertia by the relative velocities of all the elements is zero, that is to say if: 115 + 116 + 120 + N23 X 1123 X 123 + 1124 X 124 + 1130 X 130 = 0 Similarly the movement along the axis of rotation X will be significantly reduced, or even canceled if the algebraic sum of the rotational inertia products by the relative speeds of all the elements is reduced, that is to say if: I15 + I16 + I20 + N23Xn23XI22 + n24XI24 + 1130X130 1 = ket k <_ I15 + I16 + I20 + N23X '"L32X122 + 11242X124 + 11302X130 2 For this to be possible, it is necessary that the algebraic sum of the products of the rotational inertia by the relative velocities of all the elements can be canceled or r educed, and this is possible only if some products can be removed from others, and therefore some terms of some products are negative signs. Also, a first essential condition of the invention is that one part of the kinematic chain is driven in the opposite direction of the other. For this purpose, in accordance with the invention, the ring 20 of the epicyclic gear 18 is connected to the flywheel 16, at least one planet carrier 22 of the epicyclic gear train 18 is connected to the casing 28 of the powertrain, and the sun gear 24 of the epicyclic gear 18 is connected to the rotor 30 of the electric machine 26. This configuration makes it possible to drive the entire portion of the drive train downstream of the epicyclic gear train 18 in the opposite direction. In this case the algebraic value of the product products of rotational inertia by the relative speeds of the sun gear 24 and rotor 26 of the electric machine are negative signs and the above expression can be canceled or reduced.

On comprendra donc que, dans cette configuration, une seconde caractéristique essentielle de l'invention est que les éléments que sont les parties mobiles 15, le volant d'inertie 16, la couronne 20 du train épicycloïdal 18, les satellites 23 du train épicycloïdal 18, et le planétaire 24 du train épicycloïdal 18, et le io rotor 30 de la machine électrique 26, sont dimensionnés de manière que, pour une vitesse de rotation déterminée du moteur, la somme algébrique des produits des inerties de rotation par les vitesses relatives de tous les éléments soit nulle ou minorée pour réduire les vibrations provoquées par le moteur thermique. 15 Le détail du calcul permettant ce dimensionnement ne sera pas explicité plus en détail dans la suite de la présente description, car une infinité de solutions sont possibles. Pour parvenir à ce résultat, il faut d'une part choisir les inerties de chacun de ces éléments, ce qui implique une action sur le 20 dimensionnement des éléments. Il est également possible d'adapter les vitesses relatives des éléments les uns par rapport aux autres, et cette adaptation se fera par un choix judicieux du nombre de dentures de la couronne 20, de chaque porte-satellites 22 et satellite 23 du train 25 épicycloïdal 18, et du planétaire 24 du train épicycloïdal pour déterminer le rapport de réduction du train épicycloïdal 18. Outre une forte diminution des vibrations, cette configuration présente l'avantage de permettre une réduction de la taille et de la masse de la machine électrique 26 dont le 30 dimensionnement dépend du couple absorbé, qui est ici diminué du fait d'une meilleure adaptation en vitesse. 25 7 Cette configuration permet aussi d'améliorer le rendement de la machine électrique 26 du fait d'une meilleure adaptation en vitesse. Cette configuration permet encore d'améliorer le rendement du moteur thermique du fait de la possibilité à présent offerte de le faire fonctionner suivant des plages de vitesses de rotation qui étaient jadis exclues du fait du de la présence de vibrations. Cette configuration apporte aussi un gain de fiabilité au Io moteur 14 du fait de la suppression des efforts radiaux dans les paliers, notamment ceux du vilebrequin. Avantageusement, la machine électrique 26 peut être pilotée pour limiter les fluctuations de vitesse du groupe motogénérateur 10. 15 Selon un second mode de réalisation de l'invention le groupe hybride 10 fonctionne en groupe motopropulseur 13. Ainsi le rotor 30 de la machine électrique 26 peut de surcroît être accouplé par l'intermédiaire d'un moyen d'embrayage 34 à une transmission 36 liée aux roues 38 du véhicule. 20 Dans cette configuration, les équations précédemment décrites s'appliquent à l'ensemble de la chaine cinématique et s'écrivent : IXX x = -CH1(Gaz+Ine1'[10) x 115+116+120+3X1123XI22+1124"'24+1130X130+1134X134+1136X136+1138X138 115+116+120+N23XM.23 x122+11'242 24 x124+1130 XI30+1134 '"34+1136 XI36+1138 XI38 Dans ce cas, le mouvement en rotation selon l'axe X sera annulé si la somme algébrique des produits des inerties de rotation par les vitesses relatives de tous les éléments est nulle, c'est-à-dire si : It will therefore be understood that, in this configuration, a second essential characteristic of the invention is that the elements that are the moving parts 15, the flywheel 16, the ring 20 of the epicyclic gear 18, the satellites 23 of the epicyclic gear 18 and the sun gear 24 of the epicyclic gear train 18, and the rotor 30 of the electric machine 26, are dimensioned in such a way that, for a determined rotational speed of the motor, the algebraic sum of the products of the rotational inertias by the relative speeds of the all elements are zero or minus to reduce the vibrations caused by the engine. The details of the calculation allowing this dimensioning will not be explained in more detail later in the present description, because an infinity of solutions are possible. To achieve this result, it is necessary firstly to choose the inertia of each of these elements, which implies an action on the sizing of the elements. It is also possible to adapt the relative speeds of the elements relative to each other, and this adaptation will be made by a judicious choice of the number of teeth of the crown 20, each planet carrier 22 and satellite 23 of the epicyclic gear 25 18, and the sun gear 24 of the epicyclic gear train to determine the reduction ratio of the epicyclic gear train 18. In addition to a large decrease in the vibrations, this configuration has the advantage of allowing a reduction in the size and mass of the electric machine 26 of which the dimensioning depends on the absorbed torque, which is here reduced because of a better adaptation in speed. This configuration also makes it possible to improve the efficiency of the electric machine 26 due to a better speed adaptation. This configuration further improves the efficiency of the engine because of the possibility now offered to operate in rotational speed ranges that were previously excluded because of the presence of vibration. This configuration also brings a gain of reliability to Io motor 14 due to the removal of radial forces in the bearings, including those of the crankshaft. Advantageously, the electric machine 26 can be controlled to limit the speed fluctuations of the generator 10 group. According to a second embodiment of the invention the hybrid group 10 operates as a power train 13. Thus the rotor 30 of the electric machine 26 can furthermore be coupled via a clutch means 34 to a transmission 36 connected to the wheels 38 of the vehicle. In this configuration, the previously described equations apply to the entire kinematic chain and are written: IXX x = -CH1 (Gas + Ine1 '[10) x 115 + 116 + 120 + 3X1123XI22 + 1124 "' 24 + 1130X130 + 1134X134 + 1136X136 + 1138X138 115 + 116 + 120 + N23XM.23 x122 + 11'242 24 x124 + 1130 XI30 + 1134 '"34 + 1136 XI36 + 1138 XI38 In this case, the rotational movement according to the X axis will be canceled if the algebraic sum of the rotational inertia products by the relative velocities of all the elements is zero, ie if:

30 I15 + I16 + I20 + N Xn23XI23+n24XI24+n30XI30+n34X134+n36XI36+n38XI38=0 8 De même le mouvement en rotation selon l'axe X sera réduit de manière significative, voire annulé si la somme algébrique des produits des inerties de rotation par les vitesses relatives de tous les éléments est minorée, c'est-à-dire si In the same way, the rotational movement along the X axis will be significantly reduced, or even canceled if the algebraic sum of the products of the inertias of the X-axis of the X-axis of the X-axis. rotation by the relative velocities of all the elements is reduced, ie if

115+116+120+23X1123XI22+1124XI24+1130X130+1134X134+1136X136+1138X138 = k et k < 1 115+116+120+N23 X11232XI22+1124 x124+11302XI30+1134 XI34+1136 XI36+1138 XI38 2 De préférence, dans ce second mode de réalisation de l'invention le moyen d'embrayage 34 est piloté. En particulier, il peut comporter un coupleur à glissement piloté et/ou un double embrayage piloté (non représentés), destinés à limiter les fluctuations de couple du groupe moto-générateur 12. 115 + 116 + 120 + 23X1123XI22 + 1124XI24 + 1130X130 + 1134X134 + 1136X136 + 1138X138 = k and k <1115 + 116 + 120 + N23 X11232XI22 + 1124 x124 + 11302XI30 + 1134 XI34 + 1136 XI36 + 1138 XI38 2 Preferably, in this second embodiment of the invention the clutch means 34 is controlled. In particular, it may comprise a controlled slip coupler and / or a controlled double clutch (not shown), intended to limit the torque fluctuations of the motor-generator unit 12.

On remarquera que dans cette dernière configuration, en variante, un embrayage supplémentaire (non représenté) peut être interposé entre le train épicycloïdal 18 et le moteur thermique 14, d'un côté ou de l'autre du volant d'inertie 16, pour permettre d'accoupler le moteur 14 seulement au-dessus d'une vitesse déterminée de rotation de la transmission. Cette architecture coaxiale permet un nombre déterminé d'intégrations permettant d'améliorer la compacité du groupe hybride 10. En particulier, le volant d'inertie 16 peut comporte la couronne 20 du train épicycloïdal 18. De même, le rotor 30 de la machine électrique 26 peut comporter le planétaire 24 du train 18 épicycloïdal. Le rotor 30 de la machine électrique peut comporter le planétaire 24 du train épicycloïdal 18 et le moyen 34 30 d'embrayage. L'invention permet donc de réduire les vibrations radiales d'un groupe hybride 10 de manière simple et efficace et d'améliorer ainsi la fiabilité d'un tel groupe. Note that in this latter configuration, alternatively, an additional clutch (not shown) can be interposed between the epicyclic train 18 and the heat engine 14, on one side or the other of the flywheel 16, to allow to couple the motor 14 only above a predetermined speed of rotation of the transmission. This coaxial architecture allows a determined number of integrations to improve the compactness of the hybrid group 10. In particular, the flywheel 16 may comprise the ring 20 of the planetary gear train 18. Similarly, the rotor 30 of the electric machine 26 may include the sun gear 24 of the epicyclic gear 18. The rotor 30 of the electric machine may comprise the sun gear 24 of the epicyclic gear train 18 and the clutch means 34. The invention thus makes it possible to reduce the radial vibrations of a hybrid group 10 in a simple and effective manner and thus to improve the reliability of such a group.

Claims (8)

REVENDICATIONS1. Groupe hybride (10) comportant au moins un groupe moto-générateur (12) pour un véhicule automobile comportant des éléments rotatifs dont, d'amont en aval, un vilebrequin et des parties mobiles (15) en rotation d'un moteur thermique (14), un volant d'inertie (16) lié au vilebrequin, un train épicycloïdal (18) comportant au moins une couronne (20), au moins un porte-satellite (22), au moins un satellite (23) et un planétaire (22), et une machine électrique (26) comportant un rotor (30), io chacun desdits éléments (15, 16, 20, 23, 24) présentant une inertie en rotation rapportée à l'axe (X) d'un vilebrequin du moteur thermique, et tournant à une vitesse relative déterminée par rapport audit vilebrequin du moteur thermique (14), les couronne (20), porte-satellite (22), satellite (23) et 15 planétaire (24) du train épicycloïdal (18) étant liés au volant d'inertie (16), à un carter (28) du groupe hybride et au rotor (30) de la machine électrique (26), un stator (32) de la machine électrique étant lié au carter (28) du groupe hybride, 20 caractérisé en ce que : - la couronne (20) du train épicycloïdal (18) est liée au volant d'inertie (16), - au moins un porte-satellites (22) du train épicycloïdal (18) est lié au carter (28) du groupe hybride, 25 - le planétaire (24) du train épicycloïdal est lié au rotor (30) de la machine électrique (26), et en ce que les éléments (15, 16, 20, 24, 23, 30) sont dimensionnés de manière que la somme algébrique des produits des inerties de rotation par les vitesses relatives de tous les 30 éléments soit nulle ou minorée pour réduire les vibrations provoquées par le moteur thermique (14). REVENDICATIONS1. Hybrid group (10) comprising at least one motor-generator unit (12) for a motor vehicle comprising rotary elements including, upstream to downstream, a crankshaft and moving parts (15) in rotation of a heat engine (14). ), a flywheel (16) connected to the crankshaft, an epicyclic gear train (18) comprising at least one ring gear (20), at least one carrier (22), at least one planet gear (23) and a sun gear ( 22), and an electric machine (26) comprising a rotor (30), each of said elements (15, 16, 20, 23, 24) having a rotational inertia related to the axis (X) of a crankshaft of the thermal engine, and rotating at a relative speed determined with respect to said crankshaft of the heat engine (14), the ring gear (20), planet carrier (22), planet (23) and sun gear (24) of the epicyclic gear (18). being connected to the flywheel (16), to a housing (28) of the hybrid group and to the rotor (30) of the electric machine (26), a stator (32) of the electric machine being connected to the housing (28) of the hybrid group, characterized in that: - the ring gear (20) of the epicyclic gear train (18) is connected to the flywheel (16), - at least one carrier satellites (22) of the epicyclic gear (18) is connected to the housing (28) of the hybrid group, the sun gear (24) of the epicyclic gear is connected to the rotor (30) of the electric machine (26), and in that the elements (15, 16, 20, 24, 23, 30) are dimensioned such that the algebraic sum of the rotational inertia products by the relative speeds of all the elements is zero or less to reduce the vibrations caused by the motor thermal (14). 2. Groupe hybride (10) motopropulseur selon la revendication précédente, caractérisé en ce que la machine i0 électrique (26) est pilotée pour limiter les fluctuations de vitesse du groupe moto-générateur (12). 2. hybrid group (10) power plant according to the preceding claim, characterized in that the i0 electric machine (26) is controlled to limit the speed fluctuations of the motor-generator group (12). 3. Groupe hybride (10) selon l'une des revendications précédentes, caractérisé en ce que le rotor (30) de la machine électrique (26) est de surcroît accouplé par l'intermédiaire d'un moyen d'embrayage (34) à une transmission (36) liée aux roues (38) d'un véhicule automobile pour former un groupe motopropulseur (13). 3. hybrid group (10) according to one of the preceding claims, characterized in that the rotor (30) of the electric machine (26) is further coupled by means of a clutch means (34) to a transmission (36) linked to the wheels (38) of a motor vehicle to form a power train (13). 4. Groupe hybride (10) motopropulseur selon la io revendication précédente, caractérisé en ce que le moyen d'embrayage (34) est piloté et comporte un coupleur à glissement piloté et/ou un simple ou double embrayage piloté, pour limiter les fluctuations de couple du groupe motogénérateur (12). 4. hybrid group (10) power plant according to the preceding claim, characterized in that the clutch means (34) is controlled and comprises a controlled slip coupler and / or a single or double controlled clutch, to limit the fluctuations of torque of the motogenerator group (12). 5. Groupe hybride (10) motopropulseur selon l'une des 15 revendications 3 ou 4, caractérisé en ce qu'un embrayage supplémentaire est interposé entre le train épicycloïdal (18) et le moteur thermique (14), pour permettre d'accoupler le moteur thermique (14) seulement au-dessus d'une vitesse déterminée de rotation de la transmission (36). 20 5. hybrid group (10) powertrain according to one of 15 claims 3 or 4, characterized in that an additional clutch is interposed between the epicyclic train (18) and the heat engine (14), to allow coupling the a heat engine (14) only above a determined rotational speed of the transmission (36). 20 6. Groupe hybride (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le volant d'inertie (16) comporte la couronne (20) du train épicycloïdal (18). 6. Hybrid group (10) according to any one of the preceding claims, characterized in that the flywheel (16) comprises the ring (20) of the epicyclic gear (18). 7. Groupe hybride (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le rotor (30) de 25 la machine électrique comporte le planétaire (24) du train épicycloïdal (20). 7. Hybrid group (10) according to any one of the preceding claims, characterized in that the rotor (30) of the electric machine comprises the sun gear (24) of the epicyclic gear (20). 8. Groupe hybride (10) selon la revendication précédente, caractérisé en ce que le rotor (30) de la machine électrique comporte le planétaire (24) du train épicycloïdal (18) et le moyen 30 d'embrayage (34). 8. Hybrid group (10) according to the preceding claim, characterized in that the rotor (30) of the electric machine comprises the sun gear (24) of the epicyclic gear (18) and the clutch means (34).
FR1153211A 2011-04-13 2011-04-13 Hybrid group e.g. hybrid motor generator group, for car, has elements dimensioned such that algebraic sum of products of rotational inertia by speeds relative to elements is zero or undervalued to reduce vibrations caused by heat engine Pending FR2974036A3 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0941883A2 (en) * 1998-03-10 1999-09-15 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Hybrid drive for a motor vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0941883A2 (en) * 1998-03-10 1999-09-15 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Hybrid drive for a motor vehicle

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