FR3024971A1 - VEHICLE WITH A THERMAL MOTOR, IN PARTICULAR A SCOOTER, EQUIPPED WITH A DEVICE FOR AIDING MANEUVER - Google Patents

VEHICLE WITH A THERMAL MOTOR, IN PARTICULAR A SCOOTER, EQUIPPED WITH A DEVICE FOR AIDING MANEUVER Download PDF

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Publication number
FR3024971A1
FR3024971A1 FR1457867A FR1457867A FR3024971A1 FR 3024971 A1 FR3024971 A1 FR 3024971A1 FR 1457867 A FR1457867 A FR 1457867A FR 1457867 A FR1457867 A FR 1457867A FR 3024971 A1 FR3024971 A1 FR 3024971A1
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electric motor
wheel
vehicle
vehicle according
traction chain
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FR1457867A
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FR3024971B1 (en
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Louis Mari Bernier
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Peugeot Motocycles SA
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Peugeot Motocycles 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
    • B60K6/38—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
    • B60K6/383—One-way clutches or freewheel devices
    • 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
    • B60K6/42—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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/543—Transmission for changing ratio the transmission being a continuously variable transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M23/00—Transmissions characterised by use of other elements; Other transmissions
    • B62M23/02—Transmissions characterised by use of other elements; Other transmissions characterised by the use of two or more dissimilar sources of power, e.g. transmissions for hybrid motorcycles
    • 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
    • B60K2006/4808—Electric machine connected or connectable to gearbox output 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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K2006/541—Transmission for changing ratio without reverse ratio using instead electric reversing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
    • B60Y2200/122—Trikes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
    • B60Y2200/126—Scooters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/40—Actuators for moving a controlled member
    • B60Y2400/41—Mechanical transmissions for actuators
    • B60Y2400/416—Centrifugal actuators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

Le véhicule comporte : une roue motrice (1) associée à une chaîne de traction (2) comprenant un moteur thermique (3), et un embrayage moteur thermique (5) monté entre le moteur thermique et la roue ; une batterie (8); et un moteur électrique (9) qui est relié électriquement de façon contrôlée à la batterie (8), et qui est associé à un dispositif de liaison (10) pour être relié mécaniquement à la chaîne de traction en un point intermédiaire entre l'embrayage moteur thermique (5) et la roue (1) dans un sens entrainant la roue lorsque le moteur électrique est alimenté en électricité.The vehicle comprises: a driving wheel (1) associated with a traction chain (2) comprising a heat engine (3), and a thermal engine clutch (5) mounted between the heat engine and the wheel; a battery (8); and an electric motor (9) which is electrically connected in a controlled manner to the battery (8), and which is associated with a connecting device (10) to be mechanically connected to the power train at an intermediate point between the clutch the heat engine (5) and the wheel (1) in a direction driving the wheel when the electric motor is supplied with electricity.

Description

1 VÉHICULE À MOTEUR THERMIQUE, NOTAMMENT SCOOTER, EQUIPÉ D'UN DISPOSITIF D'AIDE A LA MANOEUVRE [0001] La présente invention concerne un véhicule à moteur thermique, notamment un scooter, équipé d'un dispositif d'aide à la manoeuvre. ARRIÈRE-PLAN DE L'INVENTION [0002] On sait que les véhicules légers, notamment les scooters, mais également les quads, les motoneiges... Comportent de façon générale une roue motrice associée à une chaîne de traction comprenant un moteur thermique, un dispositif de transmission à coefficient 15 continûment variable relié au moteur thermique, et un embrayage, ci-après dénommé embrayage moteur thermique, monté entre le dispositif de transmission à coefficient continûment variable et la roue. Ce type de véhicule ne comporte généralement pas de marche arrière, le moteur thermique assurant une propulsion seulement en marche avant. C'est donc l'utilisateur qui doit assurer par sa force physique propre les manoeuvres en marche arrière du 20 véhicule. L'avènement des scooters haut de gamme à forte cylindrée, et donc à masse importante (> 150 kg) rend cette manoeuvre difficile dans certaines configurations de terrain, ce qui peut interdire l'accès à ce type de véhicule à une partie de la population des acheteurs potentiels qui ne présentent pas des capacités physiques suffisantes. [0003] Afin de faciliter la manoeuvre de ce type de véhicule, il a été proposé d'adjoindre à la 25 chaîne de traction un dispositif mécanique assurant une inversion du sens de rotation de la roue. L'implantation d'un tel dispositif suppose toutefois une transformation importante de la structure de la chaîne de traction, ce qui augmente de façon substantielle le coût du véhicule. En outre, l'utilisation du moteur thermique pour une manoeuvre en marche arrière pose des problèmes de sécurité lorsque l'utilisateur effectue les manoeuvres en étant debout à côté du 30 véhicule.FIELD OF THE INVENTION The present invention relates to a motor vehicle with a heat engine, in particular a scooter, equipped with a maneuvering aid. BACKGROUND OF THE INVENTION [0002] It is known that light vehicles, in particular scooters, but also quads, snowmobiles, etc.... Generally comprise a drive wheel associated with a power train comprising a heat engine, a continuously variable coefficient transmission device 15 connected to the heat engine, and a clutch, hereinafter called thermal engine clutch, mounted between the continuously variable coefficient transmission device and the wheel. This type of vehicle generally has no reverse, the engine providing propulsion only forward. It is therefore the user who must ensure by his own physical strength the maneuvers in reverse of the vehicle. The advent of high-end scooters with large displacement, and therefore large mass (> 150 kg) makes this maneuver difficult in some terrain configurations, which may prohibit access to this type of vehicle to a part of the population potential buyers who do not have sufficient physical capabilities. [0003] In order to facilitate the operation of this type of vehicle, it has been proposed to add to the traction chain a mechanical device ensuring a reversal of the direction of rotation of the wheel. The implementation of such a device, however, assumes a major transformation of the structure of the drive train, which substantially increases the cost of the vehicle. In addition, the use of the engine for reverse operation poses safety problems when the user performs maneuvers while standing beside the vehicle.

10 3024971 2 OBJET DE L'INVENTION [0004] Un but de l'invention est de proposer un dispositif d'aide à la manoeuvre d'un véhicule à moteur thermique pouvant être facilement intégré dans les structures existantes ou dans de nouvelles structures, et pour une faible augmentation du cout.OBJECT OF THE INVENTION [0004] An object of the invention is to propose a device for assisting the operation of a thermal engine vehicle that can be easily integrated into existing structures or into new structures, and for a small increase in cost.

5 BRÈVE DESCRIPTION DE L'INVENTION [0005] En vue de la réalisation de ce but, on propose selon l'invention, un véhicule comportant : une roue motrice associée à une chaîne de traction comprenant un moteur thermique, et un embrayage moteur thermique monté entre le moteur thermique et la roue ; un dispositif de fourniture d'électricité, et un moteur électrique qui est relié électriquement de façon contrôlée au dispositif de fourniture d'électricité, et qui est associé à un dispositif de liaison pour être relié mécaniquement à la chaîne de traction en un point intermédiaire entre l'embrayage moteur thermique et la roue lorsque le moteur électrique est alimenté en électricité. [0006] Compte tenu de la faible puissance qui est nécessaire pour effectuer une manoeuvre à faible vitesse, il suffit d'un moteur électrique de petite dimension pour réaliser l'aide à la manoeuvre, et il est donc généralement possible de trouver un endroit où le moteur électrique peut être implanté moyennant une faible transformation du véhicule. [0007] Selon une version avantageuse de l'invention, le véhicule comporte un organe de détection d'un état de l'embrayage moteur thermique et d'une vitesse du véhicule, et un organe d'alimentation associé pour permettre une alimentation du moteur électrique seulement lorsque l'embrayage moteur thermique est ouvert, et que la vitesse du véhicule est inférieure à un seuil de vitesse prédéterminé. On évite ainsi une détérioration accidentelle du dispositif d'aide à la manoeuvre. [0008] Selon un autre aspect avantageux de l'invention, lorsque la chaîne de traction comporte une boite relais assurant une réduction de vitesse de rotation en amont de la roue, le moteur électrique est relié à la chaîne de traction en amont d'une sortie de la boite relais. On profite ainsi de la démultiplication totale ou partielle de la boite relais pour utiliser un moteur électrique de dimension réduite. [0009] Selon encore un autre aspect avantageux de l'invention, dans lequel la chaîne de traction comporte une boite relais assurant une réduction de vitesse de rotation en amont de la 3024971 3 roue, le moteur électrique est relié à la chaîne de traction en un point intermédiaire de la boite relais, et le dispositif de liaison comporte un organe de réduction de vitesse de rotation. Ainsi, dans le cas où il n'est pas possible de relier le moteur électrique à l'entrée de la boite relais, on profite néanmoins d'une démultiplication partielle, ce qui permet de minimiser la 5 démultiplication complémentaire qu'il est nécessaire d'adjoindre au moteur électrique. [0010] Selon encore un autre aspect avantageux de l'invention, le moteur électrique est alimenté par l'intermédiaire d'un variateur de tension. On peut ainsi faire varier la vitesse du véhicule pendant la manoeuvre. [0011] Selon un premier mode de réalisation de l'invention, le dispositif de liaison comporte 10 un pignon lanceur mobile entre une position de repos dans laquelle le pignon lanceur est dégagé de la chaine de traction, et une position active vers laquelle le pignon lanceur est amené lors d'une alimentation du moteur électrique et dans laquelle le pignon lanceur assure une liaison mécanique entre le moteur électrique et la chaîne de traction. [0012] De préférence, l'embrayage moteur thermique comporte une cloche de sortie portant 15 une couronne dentée avec laquelle le pignon lanceur est engagé lorsque le pignon lanceur est en position active. [0013] Selon un deuxième mode de réalisation de l'invention, le dispositif de liaison comporte une roue libre engagée avec la chaine de traction et montée pour tourner folle lorsque le véhicule se déplace en marche avant, et pour transmettre un couple vers l'arrière 2 0 lorsque le moteur électrique est alimenté. [0014] Selon un troisième mode de réalisation de l'invention, le dispositif de liaison comporte un premier embrayage centrifuge assurant un verrouillage du moteur électrique par rapport à la chaîne de traction lorsque le moteur électrique est entrainé en rotation dans le sens de la marche arrière. 2 5 [0015] Selon une version avantageuse de ce mode de réalisation, le dispositif de liaison comporte un second embrayage centrifuge monté tête-bêche par rapport au premier embrayage centrifuge pour assurer un verrouillage du moteur électrique par rapport à la chaîne de traction lorsque le moteur électrique est entrainé en rotation dans le sens de la marche avant.BRIEF DESCRIPTION OF THE INVENTION [0005] In order to achieve this object, a vehicle is proposed according to the invention comprising: a driving wheel associated with a traction chain comprising a heat engine, and a mounted heat engine clutch. between the engine and the wheel; an electricity supply device, and an electric motor which is electrically connected in a controlled manner to the electricity supply device, and which is associated with a connecting device for being mechanically connected to the power train at an intermediate point between the thermal engine clutch and the wheel when the electric motor is supplied with electricity. Given the low power that is necessary to perform a maneuver at low speed, just a small electric motor to achieve the maneuvering assistance, and it is usually possible to find a place where the electric motor can be implanted by means of a small transformation of the vehicle. According to an advantageous version of the invention, the vehicle comprises a member for detecting a state of the thermal engine clutch and a vehicle speed, and a power supply member associated to allow power to the engine electric only when the thermal engine clutch is open, and the vehicle speed is below a predetermined speed threshold. This avoids accidental deterioration of the maneuvering aid. According to another advantageous aspect of the invention, when the traction chain comprises a relay box providing a speed reduction of rotation upstream of the wheel, the electric motor is connected to the traction chain upstream of a exit from the relay box. We thus take advantage of the total or partial reduction of the relay box to use a reduced size electric motor. According to yet another advantageous aspect of the invention, in which the traction chain comprises a relay box providing a reduction in rotational speed upstream of the wheel, the electric motor is connected to the traction chain. an intermediate point of the relay box, and the connecting device comprises a speed reduction member. Thus, in the case where it is not possible to connect the electric motor to the input of the relay box, it nevertheless takes advantage of a partial reduction, which allows to minimize the additional demultiplication that it is necessary to add to the electric motor. According to yet another advantageous aspect of the invention, the electric motor is powered via a voltage variator. It is thus possible to vary the speed of the vehicle during the maneuver. According to a first embodiment of the invention, the connecting device comprises a moving starter pinion between a rest position in which the starter pinion is released from the pull chain, and an active position towards which the pinion launcher is brought during a power supply of the electric motor and in which the launcher pinion provides a mechanical connection between the electric motor and the traction chain. [0012] Preferably, the thermal engine clutch includes an outlet bell carrying a ring gear with which the starter pinion is engaged when the starter pinion is in the active position. According to a second embodiment of the invention, the connecting device comprises a freewheel engaged with the traction chain and mounted to turn idle when the vehicle moves forward, and to transmit a torque to the back 2 0 when the electric motor is powered. According to a third embodiment of the invention, the connecting device comprises a first centrifugal clutch ensuring a locking of the electric motor with respect to the power train when the electric motor is rotated in the direction of travel. back. According to an advantageous version of this embodiment, the connection device comprises a second centrifugal clutch mounted head-to-tail relative to the first centrifugal clutch to ensure locking of the electric motor with respect to the traction chain when the electric motor is rotated in the direction of forward movement.

3 0 BRÈVE DESCRIPTION DES DESSINS 3024971 4 [0016] D'autres caractéristiques et avantages de l'invention apparaîtront encore à la lecture de la description qui suit d'un mode de réalisation préféré non limitatif de l'invention en référence aux figures ci-jointes parmi lesquelles: - La figure 1 est une représentation par blocs de la chaîne de traction et du dispositif 5 d'aide à la manoeuvre associé selon l'invention, - la figure 2 est une représentation schématique d'un premier mode de réalisation de l'invention, - la figure 3 est une vue de côté partielle, vue selon la direction III de la figure 5, d'une boite relais dont le couvercle a été retiré, à laquelle est associée un dispositif de liaison 10 selon un deuxième mode de réalisation de l'invention, dont seule la partie visible de la boite relais selon cette direction a été représentée, - la figure 4 est une vue schématique de côté, selon la direction IV de la figure 5, illustrant la portion de la partie de liaison externe à la boite relais, - la figure 5 est une vue en coupe selon la ligne V-V de la figure 4 15 - la figure 6 est une vue en coupe analogue à celle de la figure 5, d'un troisième mode de réalisation de l'invention, - la figure 7 est une vue en coupe selon la ligne VII-VII de la figure 6, - la figure 8 est une vue en coupe selon la ligne VIII-VIII de la figure 6.BRIEF DESCRIPTION OF THE DRAWINGS [0016] Other features and advantages of the invention will become apparent upon reading the following description of a preferred non-limiting embodiment of the invention with reference to the figures below. attached, among which: FIG. 1 is a block representation of the traction chain and the associated maneuvering aid device according to the invention; FIG. 2 is a schematic representation of a first embodiment of the invention; FIG. 3 is a partial side view, seen in the direction III of FIG. 5, of a relay box whose cover has been removed, to which is associated a connection device 10 according to a second embodiment. embodiment of the invention, of which only the visible part of the relay box in this direction has been shown; - FIG. 4 is a schematic side view along direction IV of FIG. 5, illustrating the portion of the box; 5 is a sectional view along the line VV of FIG. 4; FIG. 6 is a sectional view similar to that of FIG. 5, of a third embodiment of FIG. embodiment of the invention, - Figure 7 is a sectional view along the line VII-VII of Figure 6, - Figure 8 is a sectional view along the line VIII-VIII of Figure 6.

2 0 DESCRIPTION DETAILLÉE DE L'INVENTION [0017] En référence de la figure 1, l'invention se rapporte à un véhicule, ici un scooter, comportant une roue motrice 1 associée à une chaîne de traction 2 comprenant un moteur thermique 3, un dispositif de transmission à coefficient continûment variable 4 relié au moteur thermique, un embrayage moteur thermique 5 monté entre le dispositif de transmission à 2 5 coefficient continûment variable et la roue, et une boîte relais 6, montée entre l'embrayage moteur thermique et la roue et comportant des pignons assurant une réduction de vitesse de rotation en amont de la roue 1. [0018] Par ailleurs, le véhicule comporte également de façon connue en soi une unité de pilotage 7 reliée à un dispositif de fourniture d'électricité, ici une batterie 8. Le plus souvent, 3 0 la régulation de la CVT est simplement mécanique par l'écartement des galets sous l'effet 3024971 5 centrifuge dans la poulie motrice et un ressort adapté dans la poulie réceptrice pour refermer les deux flasques de la poulie motrice. [0019] Selon l'invention le véhicule comporte en outre un moteur électrique 9 qui est relié électriquement de façon contrôlée, via l'unité de pilotage 7, à la batterie 8, et qui est associé à 5 un dispositif de liaison 10 pour être relié mécaniquement à la chaîne de traction 2 en un point intermédiaire entre l'embrayage moteur thermique 5 et la roue 1 dans un sens entraînant la roue lorsque le moteur électrique est alimenté en électricité. La commande du moteur électrique 9 est effectuée par un bouton de manoeuvre 11 porté par le guidon 12 du véhicule. La commande du moteur électrique 9 peut être effectuée soit en tout ou rien par un 10 interrupteur de sorte que le déplacement en marche arrière est alors effectué à vitesse constante, soit par une variation de tension permettant d'obtenir une vitesse variable en marche arrière, le bouton de commande 11 étant alors configuré pour transmettre une consigne d'alimentation variable qui est convertie en une tension par un organe d'alimentation 13 qui comprend un variateur de tension intégré à l'unité de pilotage. 15 [0020] Selon un mode de réalisation préféré de l'invention, à partir de données de fonctionnement disponibles lors du pilotage du dispositif de transmission à coefficient continûment variable, notamment les vitesses de rotation et/ou les couples en différents points de la chaîne de traction, l'unité de pilotage 7 assure une détection d'un état de l'embrayage moteur thermique 5 et une détection d'une vitesse du véhicule, et en déduit une consigne 20 appliquée au variateur de tension 13 pour permettre une alimentation du moteur électrique seulement lorsque l'embrayage moteur thermique est ouvert, et que la vitesse du véhicule est inférieure à un seuil prédéterminé, et ainsi éviter une destruction du dispositif de liaison lors de la mise en marche du moteur électrique. [0021] La figure 2 illustre un premier mode de réalisation de l'invention dans lequel 25 l'embrayage moteur thermique 5 est un embrayage centrifuge comportant une cloche de sortie 14 portant une couronne dentée 15. Dans ce mode de réalisation le moteur électrique 9 convenablement fixé de façon non représentée en un point adjacent à la cloche 14 est relié à la chaîne de transmission par un dispositif de liaison 16 qui est un mécanisme dit à pignon lanceur, identique au mécanisme d'un démarreur électrique. Dans le mode de réalisation 30 illustré, ce mécanisme comporte: un pignon denté 17 porté par l'axe de rotation du moteur électrique 9; Un pignon intermédiaire 19 comprenant une grande roue dentée 18, et une petite 3024971 6 roue dentée 20 accolées l'une à l'autre; et un pignon lanceur 22 comportant une grande roue dentée 21, et une petite roue dentée 23. [0022] Le pignon 17 de petite dimension forme un premier train démultiplicateur avec la grande roue 18 du pignon intermédiaire 19. La petite roue 20 forme un second train 5 démultiplicateur avec la grande roue 21 du pignon lanceur 22. Le pignon lanceur est, de façon connue en soi, monté sur des rampes hélicoïdales 24 pour coulisser de façon axiale entre une position de repos dans laquelle il est dégagé de la couronne dentée 15, et une position active vers laquelle il est amené par une mise en rotation du moteur électrique 9, et dans laquelle il engrène avec la couronne dentée 15 pour assurer une transmission de la rotation du moteur 10 électrique 9. [0023] On notera que dans ce mode de réalisation la cloche de l'embrayage moteur thermique 5 est solidaire de l'arbre d'entrée de la boîte relais 6 de sorte que la liaison du moteur électrique 9 avec la roue 1 comprend la démultiplication totale assurée par la boîte relais 6. [0024] Les figures 3 à 5 illustrent le second mode de réalisation de l'invention. La figure 3 15 illustre la boîte relais 6 comportant de façon connue en soi un arbre d'entrée 25 sur lequel est fixé un pignon 26 de petite dimension qui engrène avec une roue intermédiaire 27 ayant une denture 28 de grand diamètre. La roue intermédiaire 27 est portée par un arbre intermédiaire 29 qui porte également un pignon intermédiaire 30 de petit diamètre qui engrène avec un pignon de sortie 31 porté par un arbre de sortie 32. 20 [0025] Selon l'invention, l'espace disponible dans la boîte relais 6 est mis à profit pour implanter dans la boîte relais un pignon de marche arrière 33 engrenant avec le pignon intermédiaire 28. Le pignon de marche arrière 33 est porté par un arbre 34 par l'intermédiaire d'une roue libre 35 montée pour tourner folle lorsque le véhicule est entraîné en marche avant par le moteur thermique 3. L'arbre 34 traverse la paroi de la boîte relais 6 en étant supporté 25 par un roulement à billes 36 associé à un joint à lèvre 48 qui assure l'étanchéité, et porte à son extrémité extérieure à la boîte relais, une roue 37 qui engrène avec un pignon 49 de petite dimension lui-même accolé à une roue 38 de grande dimension qui engrène elle-même avec le pignon 17 du moteur électrique 9 fixé à la boîte relais 6 par une entretoise 39. l'ensemble 50 constitué des deux pignons 49 et 38 est monté fou sur un axe 51 implanté dans l'entretoise 39 30 du moteur électrique 9. La roue libre 35 est montée pour assurer un verrouillage du pignon 33 par rapport à l'arbre 34 lorsque le moteur électrique 9 est entraîné dans un sens correspondant à une marche arrière. 3024971 7 [0026] On remarquera que les diamètres respectifs du pignon 17, de la roue 38, du pignon 49 et de la roue 37 réalisent une démultiplication qui compense la perte de démultiplication résultant de l'engagement du pignon de marche arrière 33 avec la roue intermédiaire 27 et non avec le pignon d'entrée 26 de la boîte relais 6. 5 [0027] Les figures 6 à 8 illustrent le troisième mode de réalisation de l'invention, selon lequel la liaison entre l'arbre 40 du moteur électrique 9 et le pignon intermédiaire 27 de la boite relais 6, est cette fois réalisée par un double embrayage centrifuge comprenant une cloche de sortie 41 dans laquelle est monté un premier embrayage centrifuge 42 comprenant des masselottes assurant un verrouillage du moteur électrique par rapport à la chaîne de traction 10 lorsque le moteur électrique est entrainé en rotation dans le sens de la marche arrière, et un second embrayage centrifuge 43 monté tête-bêche par rapport au premier embrayage centrifuge pour assurer un verrouillage du moteur électrique par rapport à la chaîne de traction lorsque le moteur électrique est entrainé en rotation dans le sens de la marche avant. [0028] La cloche 41 est portée par un arbre 47 traversant la paroi de la boîte relais 6, et monté 15 pour tourner par rapport à celle-ci au moyen d'un roulement à billes associé à un joint à lèvre 52 qui assure l'étanchéité. Du côté intérieur de la boîte relais 6, l'arbre 47 porte un pignon 45 qui engrène avec une roue folle 46, qui engrène elle-même avec le pignon intermédiaire 27. La démultiplication supplémentaire est cette fois obtenue par les dimensions respectives du pignon 45, de la roue folle 46, et du pignon intermédiaire 27. L'avantage du dispositif à 20 embrayage centrifuge est qu'il permet d'utiliser la fonction dans les deux sens de rotation du moteur, et de disposer ainsi d'une aide à la manoeuvre à vitesse réduite à la fois en marche avant et en marche arrière, et en mode ZEV- Zéro Emission Véhicule- si le moteur thermique est stoppé et que l'alimentation du moteur électrique est exclusivement assuré par la batterie. Dans la description qui a été faite, on a utilisé deux embrayages installés tête-bêche parce 25 qu'il s'agit d'embrayages à mâchoires pivotantes par rapport à une de leur extrémité, mais on pourrait aussi utiliser un seul embrayage à mâchoires à déplacement radial qui présente l'avantage d'être symétrique et permet de transmettre le même niveau de couple dans les deux sens de rotation, ce qui devrait à la fois compacter le montage et réduire son coût.(voir schéma en annexe jointe) 30 3024971 8 [0029] Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention telle que définie par les revendications. [0030] En particulier, Bien que l'invention ait été décrite en relation avec un scooter 5 comportant un dispositif de transmission à coefficient continûment variable, elle peut également être mise en oeuvre sur un véhicule comportant une boite de vitesses. [0031] Bien que dans le deuxième et le troisième mode de réalisation la liaison entre le moteur électrique et la chaîne de traction se fasse au niveau du pignon intermédiaire de la boite relais en raison de la facilité d'implantation dans les boîtes relais existantes, l'invention 10 peut être mise en oeuvre par une liaison directe du moteur électrique avec l'arbre d'entrée de la boîte relais, ce qui permet d'économiser les engrenages de la démultiplication complémentaire. [0032] Bien que l'invention ait été décrite en relation avec un véhicule comportant une batterie, l'invention pourrait également être mise en oeuvre avec un véhicule équipé d'une 15 simple dynamo. Dans ce cas il sera toutefois nécessaire de s'assurer que la puissance fournie par la dynamo à un régime suffisamment bas pour ne pas fermer l'embrayage moteur thermique, est suffisante pour entrainer le véhicule en marche arrière.DETAILED DESCRIPTION OF THE INVENTION [0017] With reference to FIG. 1, the invention relates to a vehicle, here a scooter, comprising a driving wheel 1 associated with a traction chain 2 comprising a heat engine 3, a a continuously variable coefficient transmission device 4 connected to the heat engine, a thermal engine clutch 5 mounted between the continuously variable coefficient transmission device and the wheel, and a relay box 6, mounted between the heat engine clutch and the wheel and comprising pinions providing a reduction in speed of rotation upstream of the wheel 1. [0018] Moreover, the vehicle also comprises, in a manner known per se, a control unit 7 connected to an electricity supply device, here a Battery 8. Most often, the regulation of the CVT is simply mechanical by the distance of the rollers under the centrifugal effect in the driving pulley and a suitable spring. ns the receiving pulley to close the two flanges of the drive pulley. According to the invention, the vehicle further comprises an electric motor 9 which is electrically connected in a controlled manner, via the control unit 7, to the battery 8, and which is associated with a connection device 10 to be mechanically connected to the drive train 2 at an intermediate point between the thermal engine clutch 5 and the wheel 1 in a direction driving the wheel when the electric motor is supplied with electricity. The control of the electric motor 9 is performed by an operating knob 11 carried by the handlebar 12 of the vehicle. The control of the electric motor 9 can be carried out either all or nothing by a switch so that the movement in reverse is then performed at a constant speed, or by a voltage variation to obtain a variable speed in reverse, the control button 11 is then configured to transmit a variable supply setpoint which is converted into a voltage by a supply member 13 which comprises a voltage converter integrated in the control unit. According to a preferred embodiment of the invention, from operating data available during the driving of the continuously variable coefficient transmission device, in particular the rotational speeds and / or the couples at different points of the chain. traction unit, the control unit 7 provides a detection of a state of the thermal engine clutch 5 and a detection of a vehicle speed, and derives a setpoint 20 applied to the voltage converter 13 to allow a power supply of the vehicle. electric motor only when the thermal engine clutch is open, and the vehicle speed is below a predetermined threshold, and thus avoid destruction of the connecting device when starting the electric motor. [0021] FIG. 2 illustrates a first embodiment of the invention in which the heat engine clutch 5 is a centrifugal clutch comprising an outlet bell 14 carrying a ring gear 15. In this embodiment, the electric motor 9 suitably fixed in a manner not shown at a point adjacent to the bell 14 is connected to the transmission chain by a connecting device 16 which is a so-called starter gear mechanism, identical to the mechanism of an electric starter. In the illustrated embodiment, this mechanism comprises: a toothed pinion 17 carried by the axis of rotation of the electric motor 9; An intermediate gear 19 comprising a large gear 18, and a small gear 20 contiguous to each other; and a starter gear 22 having a large gear 21 and a small gear 23. The small gear 17 forms a first reduction gear with the large wheel 18 of the intermediate gear 19. The small wheel 20 forms a second gear gear 5 reduction gear with the large wheel 21 of the starter pinion 22. The starter pinion is, in known manner, mounted on helical ramps 24 to slide axially between a rest position in which it is clear of the ring gear 15 , and an active position to which it is brought by a rotation of the electric motor 9, and in which it meshes with the ring gear 15 to ensure transmission of the rotation of the electric motor 9. [0023] It will be noted that in this embodiment of the bell of the thermal engine clutch 5 is integral with the input shaft of the relay box 6 so that the connection of the electric motor 9 with the wheel 1 includes the demul total tiplication provided by the relay box 6. [0024] Figures 3 to 5 illustrate the second embodiment of the invention. FIG. 3 illustrates the relay box 6 comprising, in a manner known per se, an input shaft 25 on which is fixed a pinion 26 of small dimension which meshes with an intermediate wheel 27 having a toothing 28 of large diameter. The intermediate wheel 27 is carried by an intermediate shaft 29 which also carries an intermediate gear 30 of small diameter which meshes with an output gear 31 carried by an output shaft 32. [0025] According to the invention, the space available in the relay box 6 is used to implement in the relay box a reverse gear 33 meshing with the intermediate gear 28. The reverse gear 33 is carried by a shaft 34 via a free wheel 35 mounted to turn idle when the vehicle is driven forward by the engine 3. The shaft 34 passes through the wall of the relay box 6 being supported by a ball bearing 36 associated with a lip seal 48 which ensures sealing, and carries at its outer end to the relay box, a wheel 37 which meshes with a pinion 49 of small size itself attached to a wheel 38 of large size which meshes with the pig itself. no 17 of the electric motor 9 fixed to the relay box 6 by a spacer 39. the assembly 50 consisting of the two gears 49 and 38 is mounted loosely on an axis 51 implanted in the spacer 39 30 of the electric motor 9. The free wheel 35 is mounted to ensure a locking pinion 33 relative to the shaft 34 when the electric motor 9 is driven in a direction corresponding to a reverse. It will be noted that the respective diameters of the pinion 17, of the wheel 38, of the pinion 49 and of the wheel 37 achieve a reduction which compensates for the loss of gear ratio resulting from the engagement of the reverse pinion gear 33 with the intermediate wheel 27 and not with the input gear 26 of the relay box 6. [0027] Figures 6 to 8 illustrate the third embodiment of the invention, wherein the connection between the shaft 40 of the electric motor 9 and the intermediate gear 27 of the relay box 6, this time is achieved by a double centrifugal clutch comprising an outlet bell 41 in which is mounted a first centrifugal clutch 42 comprising flyweights ensuring locking of the electric motor relative to the chain traction 10 when the electric motor is rotated in the direction of reverse, and a second centrifugal clutch 43 mounted head to tail relative to the first embra centrifugal yage to ensure locking of the electric motor with respect to the power train when the electric motor is rotated in the forward direction. The bell 41 is carried by a shaft 47 passing through the wall of the relay box 6, and mounted 15 to rotate relative thereto by means of a ball bearing associated with a lip seal 52 which ensures sealing. On the inside of the relay box 6, the shaft 47 carries a pinion 45 which meshes with a idler wheel 46, which meshes with the intermediate gear 27. The additional gearing is this time obtained by the respective dimensions of the pinion 45 , the idler wheel 46, and the intermediate gear 27. The advantage of the centrifugal clutch device is that it allows to use the function in both directions of rotation of the engine, and thus to have a help to low-speed maneuvering both forward and reverse, and in ZEV-Zero Vehicle Emission mode- if the engine is stopped and the electric motor is powered exclusively by the battery. In the description that was made, two clutches were used, head-to-tail because they were swivel-clutch clutches relative to one end, but a single clutch could be used. radial displacement which has the advantage of being symmetrical and allows to transmit the same level of torque in both directions of rotation, which should both compact the assembly and reduce its cost (see diagram attached) 3024971 Naturally, the invention is not limited to the embodiments described and variations can be made without departing from the scope of the invention as defined by the claims. In particular, although the invention has been described in connection with a scooter 5 comprising a continuously variable coefficient transmission device, it can also be implemented on a vehicle having a gearbox. Although in the second and third embodiment the connection between the electric motor and the traction chain is at the intermediate gear of the relay box due to the ease of implementation in the existing relay boxes, the invention 10 can be implemented by a direct connection of the electric motor with the input shaft of the relay box, which saves the gears of the additional gear. Although the invention has been described in relation to a vehicle comprising a battery, the invention could also be implemented with a vehicle equipped with a single dynamo. In this case it will however be necessary to ensure that the power supplied by the dynamo at a low enough speed not to close the engine clutch is sufficient to drive the vehicle in reverse.

Claims (9)

REVENDICATIONS1. Véhicule comportant : une roue motrice (1) associée à une chaîne de traction (2) comprenant un moteur thermique (3), et un embrayage moteur thermique (5) monté entre le moteur thermique et la roue ; et un dispositif de fourniture d'électricité (8), caractérisé en ce qu'il comporte un moteur électrique (9) qui est relié électriquement de façon contrôlée au dispositif de fourniture d'électricité (8), et qui est associé à un dispositif de liaison (10) pour être relié mécaniquement à la chaîne de traction en un point intermédiaire entre l'embrayage moteur thermique (5) et la roue (1) soit dans un sens entrainant la roue en marche arrière lorsque le moteur électrique est alimenté en électricité si on adopte un dispositif de type lanceur ou roue libre, soit dans les deux sens de marche, avant ou arrière, si on adopte un dispositif de type embrayage centrifuge.REVENDICATIONS1. Vehicle comprising: a driving wheel (1) associated with a traction chain (2) comprising a heat engine (3), and a thermal engine clutch (5) mounted between the heat engine and the wheel; and an electricity supply device (8), characterized in that it comprises an electric motor (9) which is electrically connected in a controlled manner to the electricity supply device (8), and which is associated with a device link (10) to be mechanically connected to the drive train at an intermediate point between the engine clutch (5) and the wheel (1) is in a direction driving the wheel in reverse when the electric motor is powered. electricity if we adopt a device type launcher or freewheel, or in both directions of travel, front or rear, if we adopt a device type centrifugal clutch. 2. Véhicule selon la revendication 1, caractérisé en ce qu'il comporte un organe de détection (7) d'un état de l'embrayage moteur thermique et d'une vitesse du véhicule, et un organe d'alimentation (13) associé pour permettre une alimentation du moteur électrique seulement lorsque l'embrayage moteur thermique est ouvert, et que la vitesse du véhicule est inférieure à un seuil de vitesse prédéterminé.2. Vehicle according to claim 1, characterized in that it comprises a detecting member (7) of a state of the thermal engine clutch and a speed of the vehicle, and an associated power supply member (13). to allow power to the electric motor only when the thermal engine clutch is open, and the vehicle speed is below a predetermined speed threshold. 3. Véhicule selon la revendication 1 dans lequel la chaîne de traction (2) comporte une boite relais (6) assurant une réduction de vitesse de rotation en amont de la roue, caractérisé en ce que le moteur électrique (9) est relié à la chaîne de traction en amont d'une sortie de la boite relais.3. Vehicle according to claim 1 wherein the traction chain (2) comprises a relay box (6) providing a speed reduction of rotation upstream of the wheel, characterized in that the electric motor (9) is connected to the traction chain upstream of an output of the relay box. 4. Véhicule selon la revendication 1 dans lequel la chaîne de traction comporte une boite relais (6) assurant une réduction de vitesse de rotation en amont de la roue, caractérisé en ce que le moteur électrique (9) est relié à la chaîne de traction en un point intermédiaire (27) de la boite relais, et le dispositif de liaison comporte un organe de réduction (17,38;45,46) de vitesse de rotation.4. Vehicle according to claim 1 wherein the traction chain comprises a relay box (6) providing a speed reduction of rotation upstream of the wheel, characterized in that the electric motor (9) is connected to the traction chain. at an intermediate point (27) of the relay box, and the connecting device comprises a reduction member (17,38; 45,46) rotational speed. 5. Véhicule selon la revendication 1 caractérisé en ce que le moteur électrique (9) est alimenté par l'intermédiaire d'un variateur de tension (13). 3024971 105. Vehicle according to claim 1 characterized in that the electric motor (9) is supplied via a voltage variator (13). 3024971 10 6. Véhicule selon la revendication 1 caractérisé en ce que le dispositif de liaison comporte un pignon lanceur (22) mobile entre une position de repos dans laquelle le pignon lanceur est dégagé de la chaine de traction, et une position active vers laquelle le pignon lanceur est amené lors d'une alimentation du moteur électrique (9), et dans laquelle le pignon 5 lanceur assure une liaison mécanique entre le moteur électrique et la chaîne de traction.6. Vehicle according to claim 1 characterized in that the connecting device comprises a starter pinion (22) movable between a rest position in which the starter pinion is released from the pull chain, and an active position towards which the starter pinion is fed during a power supply of the electric motor (9), and in which the launcher pinion 5 provides a mechanical connection between the electric motor and the traction chain. 7. Véhicule selon la revendication 6 caractérisé en ce que l'embrayage moteur thermique (5) comporte une cloche de sortie (14) portant une couronne dentée (15) avec laquelle le pignon lanceur (22) est engagé lorsque le pignon lanceur est en position active.7. Vehicle according to claim 6 characterized in that the thermal engine clutch (5) comprises an outlet bell (14) carrying a ring gear (15) with which the starter pinion (22) is engaged when the starter pinion is in position. active position. 8. Véhicule selon la revendication 1 caractérisé en ce que le dispositif de liaison 10 comporte une roue libre (35) engagée avec la chaine de traction et montée pour tourner folle lorsque le véhicule se déplace en marche avant, et pour transmettre un couple vers l'arrière lorsque le moteur électrique est alimenté.8. Vehicle according to claim 1 characterized in that the connecting device 10 comprises a free wheel (35) engaged with the traction chain and mounted to turn idle when the vehicle moves forward, and to transmit torque to the back when the electric motor is powered. 9. Véhicule selon la revendication 1 caractérisé en ce que le dispositif de liaison comporte un embrayage centrifuge (42) assurant un verrouillage du moteur électrique par 15 rapport à la chaîne de traction lorsque le moteur électrique (9) est entrainé en rotation dans l'un ou l'autre sens.9. Vehicle according to claim 1 characterized in that the connecting device comprises a centrifugal clutch (42) ensuring a locking of the electric motor with respect to the drive chain when the electric motor (9) is rotated in the one or the other sense.
FR1457867A 2014-08-19 2014-08-19 VEHICLE WITH A THERMAL MOTOR, IN PARTICULAR A SCOOTER, EQUIPPED WITH A DEVICE FOR AIDING MANEUVER Expired - Fee Related FR3024971B1 (en)

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FR1457867 2014-08-19
FR1457867A FR3024971B1 (en) 2014-08-19 2014-08-19 VEHICLE WITH A THERMAL MOTOR, IN PARTICULAR A SCOOTER, EQUIPPED WITH A DEVICE FOR AIDING MANEUVER

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IT201800003739A1 (en) * 2018-03-19 2019-09-19 Piaggio & C Spa TRANSMISSION UNIT FOR MOTOR VEHICLES INCLUDING A REVERSE GEAR AND RELATED MOTORCYCLE

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US6155366A (en) * 1998-10-13 2000-12-05 Lin; Yu Tsai Auxiliary electric driving system for vehicle
US20030092529A1 (en) * 2001-11-14 2003-05-15 Huan-Lung Gu Hybrid power system with continously variable speed
WO2010131942A1 (en) * 2009-05-14 2010-11-18 Petroliam Nasional Berhad (Petronas) Transmission system
EP2574537A1 (en) * 2011-09-30 2013-04-03 Honda Motor Co., Ltd. Electrically-operated two-wheeled vehicle

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US5193634A (en) * 1990-03-08 1993-03-16 Piaggio Veicoli Europei S.P.A. Hybrid propulsion system for vehicles, in particular for road vehicles
US6155366A (en) * 1998-10-13 2000-12-05 Lin; Yu Tsai Auxiliary electric driving system for vehicle
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WO2019180583A1 (en) * 2018-03-19 2019-09-26 Piaggio & C. S.P.A. Transmission group for motor vehicles comprising a reverse gear and related motor vehicle
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