EP4193078A1 - Device for immobilising a hybrid vehicle, corresponding gearbox and control method - Google Patents

Device for immobilising a hybrid vehicle, corresponding gearbox and control method

Info

Publication number
EP4193078A1
EP4193078A1 EP21734123.9A EP21734123A EP4193078A1 EP 4193078 A1 EP4193078 A1 EP 4193078A1 EP 21734123 A EP21734123 A EP 21734123A EP 4193078 A1 EP4193078 A1 EP 4193078A1
Authority
EP
European Patent Office
Prior art keywords
pinion
hybrid vehicle
immobilizing
shaft
gearbox
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21734123.9A
Other languages
German (de)
French (fr)
Inventor
Jean-Marc Cardona
Pierrick DELADIENNEE
Nicolas DELAGNES
Frederic DUARTE
Remi Ferreira
Patrice Mercay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ampere Sas
Original Assignee
Renault SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Publication of EP4193078A1 publication Critical patent/EP4193078A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/3416—Parking lock mechanisms or brakes in the transmission
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • 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
    • B60K2006/4841—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range the gear provides shifting between multiple ratios
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0043—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising four forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/3416—Parking lock mechanisms or brakes in the transmission
    • F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
    • 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

Definitions

  • the present invention relates to the parking brake function, on a hybrid vehicle equipped with a parallel shaft transmission.
  • This device for immobilizing a hybrid vehicle having a driven gearbox with parallel shafts which combines the movement of several driving sources in the direction of the wheels of the vehicle.
  • This device comprises, on the one hand, means for locking, on a casing of the box, a notched parking wheel integral with a first pinion of the box, and, on the other hand, means for coupling a second pinion of the the box on his tree.
  • the parking brake function is most often ensured by a parking finger, which is housed in a notch of a ring gear, located either on the differential, the secondary shaft, or the primary shaft of the gearbox.
  • an idler pinion to which is associated a cogging crown.
  • the idler gear, or the shaft on which the crown wheel is mounted, is in direct kinematic connection with the wheels of the vehicle.
  • the actuation of the parking finger can then be carried out in various ways, for example by means of a mobile carriage which moves in the axis of the finger with the aid of a cylinder rolling on a slope forcing the finger to descend. in the notch of the crown, or with the aid of other actuation systems involving in particular a conical shaft driven in translation to control the descent of the finger into a notch of the wheel.
  • Publication FR 3 018 107 discloses an automatic transmission provided with a parking wheel located on its primary line. In this transmission, a transmission ratio is engaged simultaneously with locking of the parking wheel, when the driver places his gear selection lever in position of car park.
  • the present invention aims to simplify a parking brake system, by reducing its mass and its installation volume.
  • an immobilizer which comprises a first pinion of the box associated with the parking wheel which is not in direct contact with the driving sources or with the wheels of the vehicle, and a second pinion of the box, which is mounted on a shaft in direct contact with the wheels of the vehicle.
  • the parking wheel is fixed to a pinion rotating on a coupling shaft between two primary shafts of the box, respectively connected to a heat engine and to an electric machine.
  • the proposed gearbox has this arrangement.
  • the immobilization of the vehicle is carried out by successively operating the coupling of the second pinion on its shaft, and the locking of the parking wheel and the first pinion on the casing.
  • FIG. 1 describes a parking wheel locking system.
  • FIG. 2 is a box kinematic diagram illustrating in a non-limiting way the application of the invention.
  • a parking wheel 1 has been shown, with its parking finger 2, in the locking position on the parking wheel 1.
  • the finger 2 can pivot around an axis 3, under the thrust of a spring 4.
  • the control lever 5 of the finger 2 is actuated by a rod 6. It is guided in its movement by the bracket 7.
  • Part 8 supports the parking brake mechanism, and part 9 supports the actuator 9a electric parking finger control.
  • the rotary beading sector 10 cooperates with the beading cartridge 11 to actuate the rod 6 controlling the finger 2.
  • the box in FIG. 2 is of the type described in the publication FR 3 022 495, to which reference may be made. It is a hybrid vehicle driven gearbox with parallel shafts, which combines the movement of several driving sources in the direction of the wheels of the vehicle.
  • This box comprises, in the diagram, an immobilizer according to the invention.
  • the primary line carries a heat engine 12, and a main electric machine 13.
  • the box also carries an auxiliary electric machine 14, the movement of which joins that of the heat engine by an electric-thermal connection structure 15.
  • the reference 16 designates the set of idler gears for thermal ratios (in thick lines) .
  • the reference 17 designates all the idler gears of the electrical ratios (in double lines).
  • Reference 18 designates the idler gear of the first thermal ratio Thl, and reference 19 the bridge descent structure.
  • the mechanism casing 20 has been shown locally by a hatched area.
  • the parking notching system is designated as a whole by the reference 21. It can be of the type of Figure 1, or different.
  • the box includes three coupling systems, Cl-3Th, C2-4Th, C1- 2EV, respectively for the first and the third thermal ratio, the second and the fourth thermal ratio, and the two electric ratios.
  • the primary shaft of the electric traction structure kinematically connects the pinion of the first electric ratio EV1 and that of the first thermal ratio 18.
  • the parking brake function is performed by connecting the wheels of the vehicle to the mechanism casing 20 , by combining the notching of the Thl pinion on this casing, with the dog clutching of the electric first gear pinion 22.
  • the immobilizer proposed by the invention makes it possible to immobilize a hybrid vehicle having a gearbox, such as that of FIG. 2.
  • this application is not limiting. It extends to any hybrid vehicle with a controlled gearbox with parallel shafts, which combines the movement of several driving sources in the direction of the wheels of the vehicle, and comprises on the one hand locking means on a casing of the box, a toothed parking wheel integral with a first pinion of the box, and on the other hand means for coupling a second pinion of the box to its shaft.
  • the axis 3 of the parking finger 2 can be fixed on the casing 20. It provides for the finger 2 a pivot connection.
  • the parking wheel 1 is fixed on the idler gear 18 of the first thermal ratio (Th1) 18 which turns in this example on a coupling shaft between two primary shafts of the box, respectively connected to the heat engine 12 and to the electric machine 13.
  • Finger 2 can block parking wheel 1 using a parking actuator such as actuator 9a in Figure 1.
  • the first pinion 18 and the parking wheel 1 are not in direct contact with the driving sources or with the wheels of the vehicle.
  • the second pinion 24, kinematically connected to the first pinion 18, is mounted on a shaft in direct contact with the wheels of the vehicle.
  • the immobilizer thus comprises the idler gear 18 of the first thermal ratio Thl, the idler gear 22 of the first electrical ratio EV1.
  • the shaft 24 which kinematically links the two pinions 18 and 22, is the primary shaft linked to the electric machine 13.
  • the first pinion 18 of the immobilizer is therefore a thermal ratio pinion, while the second pinion 22 is an electrical ratio pinion.
  • the idler gear 18 on which the parking wheel is fixed rotates on a coupling shaft between two primary shafts of the box, respectively connected to the combustion engine and to an electric machine. But this provision is not limiting.
  • the invention also provides that the idler gear 22 of the first electrical ratio is already engaged on its shaft when the parking wheel 1 and the first gear 18 are locked on the casing 20 .
  • This interconnection is carried out using the player of the C1 -2EV coupling system, which then kinematically binds the first pinion 18 to the secondary shaft and to the wheels, through the differential 23 .
  • the immobilizer includes the two idler gears of the box 18 and 22 . These pinions are mechanically linked by the electrical primary shaft 24 and its teeth 25, 26. Two mechanical systems intervene to immobilize the vehicle: the means for locking the first idler gear and the toothed wheel on the housing thanks to the parking pin 2 on the one hand, and the dog clutch system C1-2EV of the first electric gear EV1, on the other hand .
  • the parking wheel 1 locking means comprise the parking finger cooperating with the parking wheel under the control of dedicated actuating means.
  • These actuating means can be integrated into the command and control system of the gearbox.
  • the device may on the contrary comprise a remote actuator, with a command integrated into the command and control system of the gearbox. Its actuating means can also be independent of the gearbox command and control system.
  • the locking of the parking wheel is ensured mechanically, either from a control linkage of a gear selector, or by an electric actuator.
  • the immobilization of the vehicle is carried out by successively operating the coupling of the second pinion on its shaft, and the locking of the parking wheel and the first pinion on the casing.
  • the coupling of the second pinion to its shaft is maintained by the gearbox actuator, when the parking wheel is locked on the casing.

Abstract

Disclosed is a device for immobilising a hybrid vehicle equipped with an automated parallel-shaft gearbox, which combines the motion of several drive sources (12, 13) towards the wheels of the vehicle, comprising means for immobilisation on a casing (20) of the gearbox, a toothed parking wheel (1) secured to a first pinion (18) of the gearbox, and means for coupling a second pinion (22) of the gearbox to its shaft, characterised in that the first pinion (18) and the parking wheel (1) are not in direct engagement with the drive sources (12, 13) or with the wheels of the vehicle, while the second pinion is mounted on a shaft in direct engagement with the wheels of the vehicle.

Description

DESCRIPTION DESCRIPTION
Titre de l'invention : DISPOSITIF D'IMMOBILISATION D'UN VEHICULE HYBRIDE, BOITE DE VITESSE ET PROCEDE DE COMMANDE CORRESPONDANTS La présente invention se rapporte à la fonction frein de parking, sur un véhicule hybride muni d'une transmission à arbres parallèles . Title of the invention: DEVICE FOR IMMOBILIZING A HYBRID VEHICLE, GEARBOX AND CORRESPONDING CONTROL METHOD The present invention relates to the parking brake function, on a hybrid vehicle equipped with a parallel shaft transmission.
Plus précisément, elle a pour objet un dispositif d'immobilisation d'un véhicule hybride disposant d'une boîte de vitesses pilotée à arbres parallèles qui regroupe le mouvement de plusieurs sources motrices en direction des roues du véhicule. Ce dispositif comprend d'une part des moyens de blocage sur un carter de la boîte, d'une roue de parking crantée solidaire d'un premier pignon de la boîte, et d'autre part des moyens de couplage d'un deuxième pignon de la boîte sur son arbre. More specifically, it relates to a device for immobilizing a hybrid vehicle having a driven gearbox with parallel shafts which combines the movement of several driving sources in the direction of the wheels of the vehicle. This device comprises, on the one hand, means for locking, on a casing of the box, a notched parking wheel integral with a first pinion of the box, and, on the other hand, means for coupling a second pinion of the the box on his tree.
Elle a également pour objet une boîte de vitesses munie d'un tel dispositif d'immobilisation, et son procédé de commande. It also relates to a gearbox provided with such an immobilizer, and its control method.
La fonction de frein de parking est le plus souvent assurée par un doigt de parking, venant se loger dans un cran d'une couronne dentée, localisée indifféremment sur le différentiel, l'arbre secondaire, ou l'arbre primaire de la boîte. The parking brake function is most often ensured by a parking finger, which is housed in a notch of a ring gear, located either on the differential, the secondary shaft, or the primary shaft of the gearbox.
Plus rarement, la fonction est assurée par un pignon fou, auquel on associe une couronne de crantage. Le pignon fou, ou l'arbre sur lequel est montée la couronne de crantage, est en liaison cinématique directe avec les roues du véhicule. L' actionnement du doigt de parking peut alors être réalisé de diverses façons, par exemple au moyen d'un chariot mobile qui se déplace dans l'axe du doigt à l'aide d'un cylindre roulant sur une pente contraignant le doigt à descendre dans le cran de la couronne, ou bien à l'aide d'autres systèmes d' actionnement faisant intervenir notamment un axe conique piloté en translation pour commander la descente du doigt dans un cran de la roue. More rarely, the function is ensured by an idler pinion, to which is associated a cogging crown. The idler gear, or the shaft on which the crown wheel is mounted, is in direct kinematic connection with the wheels of the vehicle. The actuation of the parking finger can then be carried out in various ways, for example by means of a mobile carriage which moves in the axis of the finger with the aid of a cylinder rolling on a slope forcing the finger to descend. in the notch of the crown, or with the aid of other actuation systems involving in particular a conical shaft driven in translation to control the descent of the finger into a notch of the wheel.
Par la publication FR 3 018 107, on connaît une transmission automatique munie d'une roue de parking implantée sur sa ligne primaire. Dans cette transmission, un rapport de transmission est engagé simultanément au blocage de la roue de parking, lorsque le conducteur place son levier de sélection de vitesses en position de parking. Publication FR 3 018 107 discloses an automatic transmission provided with a parking wheel located on its primary line. In this transmission, a transmission ratio is engaged simultaneously with locking of the parking wheel, when the driver places his gear selection lever in position of car park.
La présente invention vise à simplifier un système de frein de parking, en réduisant sa masse et son volume d'implantation. Dans ce but, elle prévoit un dispositif d'immobilisation qui comprend un premier pignon de la boîte associé à la roue de parking qui n' est pas en prise directe avec les sources motrices ni avec les roues du véhicule, et un deuxième pignon de la boîte, qui est monté sur un arbre en prise directe avec les roues du véhicule . The present invention aims to simplify a parking brake system, by reducing its mass and its installation volume. For this purpose, it provides an immobilizer which comprises a first pinion of the box associated with the parking wheel which is not in direct contact with the driving sources or with the wheels of the vehicle, and a second pinion of the box, which is mounted on a shaft in direct contact with the wheels of the vehicle.
De préférence, la roue de parking est fixée sur un pignon tournant sur un arbre de couplage entre deux arbres primaires de la boîte, reliés respectivement à un moteur thermique et à une machine électrique. Preferably, the parking wheel is fixed to a pinion rotating on a coupling shaft between two primary shafts of the box, respectively connected to a heat engine and to an electric machine.
La boîte de vitesse proposée présente cette disposition. L' immobilisation du véhicule est réalisée en opérant successivement le couplage du deuxième pignon sur son arbre, et le blocage de la roue de parking et du premier pignon sur le carter . The proposed gearbox has this arrangement. The immobilization of the vehicle is carried out by successively operating the coupling of the second pinion on its shaft, and the locking of the parking wheel and the first pinion on the casing.
D' autres caractéristiques et avantages de la présente invention ressortiront clairement à la lecture de la description suivante d'un mode de réalisation non limitatif de celle-ci, en se reportant aux dessins annexés. Other features and advantages of the present invention will emerge clearly on reading the following description of a non-limiting embodiment thereof, with reference to the accompanying drawings.
[Fig. 1] décrit un système de blocage de roue de parking. [Fig. 1] describes a parking wheel locking system.
[Fig. 2] est un schéma cinématique de boîte illustrant de manière non limitative l'application de l'invention. [Fig. 2] is a box kinematic diagram illustrating in a non-limiting way the application of the invention.
Sur la figure 1, on a fait apparaître une roue de parking 1, avec son doigt de parking 2, en position de blocage sur la roue de parking 1. Le doigt 2 peut pivoter autour d'un axe 3, sous la poussée d'un ressort 4. Le levier de commande 5 du doigt 2 est actionné par une tringle 6. Il est guidé dans son déplacement par l'équerre 7. La pièce 8 supporte le mécanisme de frein de parking, et la pièce 9 supporte l'actionneur 9a de commande électrique du doigt de parking. Enfin, le secteur de billage rotatif 10 coopère avec la cartouche de billage 11 pour actionner la tringle 6 de commande du doigt 2. La boîte de la figure 2, est du type de celle qui est décrite dans la publication FR 3 022 495, à laquelle on pourra se reporter par référence. Il s'agit d'une boîte de vitesses pilotée de véhicule hybride à arbres parallèles, qui regroupe le mouvement de plusieurs sources motrices en direction des roues du véhicule. Cette boîte comporte sur le schéma, un dispositif d'immobilisation conforme à l'invention. In Figure 1, a parking wheel 1 has been shown, with its parking finger 2, in the locking position on the parking wheel 1. The finger 2 can pivot around an axis 3, under the thrust of a spring 4. The control lever 5 of the finger 2 is actuated by a rod 6. It is guided in its movement by the bracket 7. Part 8 supports the parking brake mechanism, and part 9 supports the actuator 9a electric parking finger control. Finally, the rotary beading sector 10 cooperates with the beading cartridge 11 to actuate the rod 6 controlling the finger 2. The box in FIG. 2 is of the type described in the publication FR 3 022 495, to which reference may be made. It is a hybrid vehicle driven gearbox with parallel shafts, which combines the movement of several driving sources in the direction of the wheels of the vehicle. This box comprises, in the diagram, an immobilizer according to the invention.
Sa ligne primaire porte un moteur thermique 12, et une machine électrique principale 13. La boîte porte également une machine électrique auxiliaire 14, dont le mouvement rejoint celui du moteur thermique par une structure de liaison électrique- thermique 15. La référence 16 désigne l'ensemble des pignons fous des rapports thermiques (en traits épais) . La référence 17 désigne l'ensemble des pignons fous des rapports électriques (en traits doubles) . La référence 18 désigne le pignon fou du premier rapport thermique Thl, et la référence 19 la structure de descente de pont. On a représenté localement le carter de mécanisme 20 par une zone de hachures. Le système de crantage de parking est désigné dans son ensemble par la référence 21. Il peut être du type de la figure 1, ou différent. Son rôle est de bloquer une roue de parking (non représentée) , qui est fixée sur le pignon 18 (Thl) , par rapport au carter 20. Enfin la boîte comprend trois systèmes de couplage, Cl-3Th, C2-4Th, C1-2EV, respectivement pour le premier et le troisième rapport thermique, le deuxième et le quatrième rapport thermique, et les deux rapports électriques . Its primary line carries a heat engine 12, and a main electric machine 13. The box also carries an auxiliary electric machine 14, the movement of which joins that of the heat engine by an electric-thermal connection structure 15. The reference 16 designates the set of idler gears for thermal ratios (in thick lines) . The reference 17 designates all the idler gears of the electrical ratios (in double lines). Reference 18 designates the idler gear of the first thermal ratio Thl, and reference 19 the bridge descent structure. The mechanism casing 20 has been shown locally by a hatched area. The parking notching system is designated as a whole by the reference 21. It can be of the type of Figure 1, or different. Its role is to block a parking wheel (not shown), which is fixed on the pinion 18 (Thl), relative to the housing 20. Finally the box includes three coupling systems, Cl-3Th, C2-4Th, C1- 2EV, respectively for the first and the third thermal ratio, the second and the fourth thermal ratio, and the two electric ratios.
Dans cette architecture, l'arbre primaire de la structure de traction électrique relie cinématiquement le pignon du premier rapport électrique EV1 et celui du premier rapport thermique 18. La fonction de frein de parking est réalisée en reliant les roues du véhicule au carter de mécanisme 20, en combinant le crantage du pignon Thl sur ce carter, avec le crabotage du pignon de premier rapport électrique 22. In this architecture, the primary shaft of the electric traction structure kinematically connects the pinion of the first electric ratio EV1 and that of the first thermal ratio 18. The parking brake function is performed by connecting the wheels of the vehicle to the mechanism casing 20 , by combining the notching of the Thl pinion on this casing, with the dog clutching of the electric first gear pinion 22.
Le dispositif d' immobilisation proposé par l' invention permet d' immobiliser un véhicule hybride disposant d' une boîte de vitesses, telle que celle de la figure 2. Mais cette application n' est pas limitative. Elle s'étend à tout véhicule hybride à boîte de vitesses pilotée avec des arbres parallèles, qui regroupe le mouvement de plusieurs sources motrices en direction des roues du véhicule, et comprend d'une part des moyens de blocage sur un carter de la boîte, d'une roue de parking crantée solidaire d'un premier pignon de la boîte, et d'autre part des moyens de couplage d' un deuxième pignon de la boîte sur son arbre . The immobilizer proposed by the invention makes it possible to immobilize a hybrid vehicle having a gearbox, such as that of FIG. 2. But this application is not limiting. It extends to any hybrid vehicle with a controlled gearbox with parallel shafts, which combines the movement of several driving sources in the direction of the wheels of the vehicle, and comprises on the one hand locking means on a casing of the box, a toothed parking wheel integral with a first pinion of the box, and on the other hand means for coupling a second pinion of the box to its shaft.
L'axe 3 du doigt de parking 2 peut être fixé sur le carter 20. Il réalise pour le doigt 2 une liaison pivot. La roue de parking 1 est fixée sur le pignon fou 18 du premier rapport thermique (Thl) 18 qui tourne dans cet exemple sur un arbre de couplage entre deux arbres de primaires de la boîte, reliés respectivement au moteur thermique 12 et à la machine électrique 13. Le doigt 2 peut bloquer la roue de parking 1 à l'aide d'un actionneur de parking tel que l' actionneur 9a de la figure 1. The axis 3 of the parking finger 2 can be fixed on the casing 20. It provides for the finger 2 a pivot connection. The parking wheel 1 is fixed on the idler gear 18 of the first thermal ratio (Th1) 18 which turns in this example on a coupling shaft between two primary shafts of the box, respectively connected to the heat engine 12 and to the electric machine 13. Finger 2 can block parking wheel 1 using a parking actuator such as actuator 9a in Figure 1.
Pour immobiliser le véhicule et diminuer les efforts remontant au niveau des liaisons entre le premier pignon 18, la roue de parking 1 et l'axe 3 du doigt de parking, il est nécessaire que le premier pignon 18 et la roue de parking 1, ne soient pas en prise directe avec les sources motrices ni avec les roues du véhicule. En revanche, le deuxième pignon 24, relié cinématiquement au premier pignon 18, est monté sur un arbre en prise directe avec les roues du véhicule. Le dispositif d' immobilisation comprend ainsi le pignon fou 18 du premier rapport thermique Thl, le pignon fou 22 du premier rapport électrique EV1. L'arbre 24 qui lie cinématiquement les deux pignons 18 et 22, est l'arbre primaire lié à la machine électrique 13. To immobilize the vehicle and reduce the forces rising at the level of the connections between the first pinion 18, the parking wheel 1 and the axle 3 of the parking finger, it is necessary that the first pinion 18 and the parking wheel 1, not are not in direct contact with the driving sources or with the wheels of the vehicle. On the other hand, the second pinion 24, kinematically connected to the first pinion 18, is mounted on a shaft in direct contact with the wheels of the vehicle. The immobilizer thus comprises the idler gear 18 of the first thermal ratio Thl, the idler gear 22 of the first electrical ratio EV1. The shaft 24 which kinematically links the two pinions 18 and 22, is the primary shaft linked to the electric machine 13.
Dans l'exemple non limitatif de la figure 2, le premier pignon 18 du dispositif d' immobilisation est donc un pignon de rapport thermique, tandis que le deuxième pignon 22 est un pignon de rapport électrique. Dans cette architecture particulière, le pignon fou 18 sur lequel est fixé la roue de parking tourne sur un arbre de couplage entre deux arbres primaires de la boîte, reliés respectivement au moteur thermique et à une machine électrique . Mais cette disposition n' est pas limitative . In the non-limiting example of Figure 2, the first pinion 18 of the immobilizer is therefore a thermal ratio pinion, while the second pinion 22 is an electrical ratio pinion. In this particular architecture, the idler gear 18 on which the parking wheel is fixed rotates on a coupling shaft between two primary shafts of the box, respectively connected to the combustion engine and to an electric machine. But this provision is not limiting.
L' invention prévoit par ailleurs , que le pignon fou 22 du premier rapport électrique , soit déj à craboté sur son arbre lors du blocage de la roue de parking 1 et du premier pignon 18 sur le carter 20 . Ce crabotage est réalisé à l' aide du baladeur du système de couplage C1 -2EV, qui lie alors cinématiquement le premier pignon 18 à l' arbre secondaire et aux roues , au travers du différentiel 23 . The invention also provides that the idler gear 22 of the first electrical ratio is already engaged on its shaft when the parking wheel 1 and the first gear 18 are locked on the casing 20 . This interconnection is carried out using the player of the C1 -2EV coupling system, which then kinematically binds the first pinion 18 to the secondary shaft and to the wheels, through the differential 23 .
Dans cet exemple , le dispositif d' immobilisation inclut les deux pignons fous de la boîte 18 et 22 . Ces pignons sont liés mécaniquement par l ' arbre primaire électrique 24 , et ses dentures 25 , 26 . Deux systèmes mécaniques interviennent pour immobiliser le véhicule : les moyens de blocage du premier pignon fou et de la roue dentée sur le carter grâce au doigt de parking 2 d' une part , et le système de crabotage C1 -2EV du premier rapport électrique EV1 , d' autre part . In this example , the immobilizer includes the two idler gears of the box 18 and 22 . These pinions are mechanically linked by the electrical primary shaft 24 and its teeth 25, 26. Two mechanical systems intervene to immobilize the vehicle: the means for locking the first idler gear and the toothed wheel on the housing thanks to the parking pin 2 on the one hand, and the dog clutch system C1-2EV of the first electric gear EV1, on the other hand .
Les moyens de blocage de la roue de parking 1 comprennent le doigt de parking coopérant avec la roue de parking sous le contrôle de moyens d' actionnement dédiés . Ces moyens d' actionnement peuvent être intégrés au système de commande et de contrôle de la boîte de vitesses . Le dispositif peut au contraire comprendre un actionneur déporté , avec une commande intégrée au système de commande et de contrôle de la boîte de vitesses . Ses moyens d' actionnement peuvent aussi être indépendants du système de commande et de contrôle de la boîte de vitesses . The parking wheel 1 locking means comprise the parking finger cooperating with the parking wheel under the control of dedicated actuating means. These actuating means can be integrated into the command and control system of the gearbox. The device may on the contrary comprise a remote actuator, with a command integrated into the command and control system of the gearbox. Its actuating means can also be independent of the gearbox command and control system.
Le blocage de la roue de parking est assuré mécaniquement , soit à partir d' une tringlerie de commande d' un sélecteur de vitesses , soit par un actionneur électrique . The locking of the parking wheel is ensured mechanically, either from a control linkage of a gear selector, or by an electric actuator.
En résumé , l ' immobilisation du véhicule est réalisée en opérant successivement le couplage du deuxième pignon sur son arbre , et le blocage de la roue de parking et du premier pignon sur le carter . Dans ces opérations , le couplage du deuxième pignon sur son arbre est maintenu par l' actionneur de la boîte de vitesses , lors du blocage de la roue de parking sur le carter . In summary, the immobilization of the vehicle is carried out by successively operating the coupling of the second pinion on its shaft, and the locking of the parking wheel and the first pinion on the casing. In these operations, the coupling of the second pinion to its shaft is maintained by the gearbox actuator, when the parking wheel is locked on the casing.

Claims

REVENDICATIONS
1. Dispositif d'immobilisation d'un véhicule hybride disposant d'une boîte de vitesses pilotée à arbres parallèles, qui regroupe le mouvement de plusieurs sources motrices (12, 13) en direction des roues du véhicule, comprenant d'une part des moyens de blocage sur un carter (20) de la boîte, d'une roue de parking crantée (1) solidaire d'un premier pignon (18) de la boîte, et d'autre part des moyens de couplage d'un deuxième pignon (22) de la boîte sur son arbre, caractérisé en ce que le premier pignon (18) et la roue de parking (1) ne sont pas en prise directe avec les sources motrices (12, 13) ni avec les roues du véhicule, alors que le deuxième pignon est monté sur un arbre en prise directe avec les roues du véhicule. 1. Device for immobilizing a hybrid vehicle having a driven gearbox with parallel shafts, which combines the movement of several driving sources (12, 13) in the direction of the wheels of the vehicle, comprising on the one hand means blocking on a casing (20) of the box, a notched parking wheel (1) integral with a first pinion (18) of the box, and on the other hand means for coupling a second pinion ( 22) of the box on its shaft, characterized in that the first pinion (18) and the parking wheel (1) are not in direct contact with the driving sources (12, 13) nor with the wheels of the vehicle, then that the second pinion is mounted on a shaft in direct contact with the wheels of the vehicle.
2. Dispositif d'immobilisation d'un véhicule hybride selon la revendication 1, caractérisé en ce que la roue de parking (1) est fixée sur un pignon (18) tournant sur un arbre de couplage entre deux arbres de primaires de la boîte, reliés respectivement à un moteur thermique (12) et à une machine électrique (13) . 2. Device for immobilizing a hybrid vehicle according to claim 1, characterized in that the parking wheel (1) is fixed on a pinion (18) rotating on a coupling shaft between two primary shafts of the box, respectively connected to a heat engine (12) and to an electric machine (13).
3. Dispositif d'immobilisation d'un véhicule hybride selon la revendication 1, caractérisé en ce que le premier pignon (18) est un pignon de rapport thermique, et en ce que le deuxième pignon (22) est un pignon de rapport électrique. 3. Device for immobilizing a hybrid vehicle according to claim 1, characterized in that the first pinion (18) is a thermal ratio pinion, and in that the second pinion (22) is an electrical ratio pinion.
4. Dispositif d'immobilisation d'un véhicule hybride selon la revendication 3, caractérisé en ce que le deuxième pignon (22) est lié cinématiquement au premier pignon (18) par un arbre de la boîte . 4. Device for immobilizing a hybrid vehicle according to claim 3, characterized in that the second pinion (22) is kinematically linked to the first pinion (18) by a shaft of the box.
5. Dispositif d'immobilisation d'un véhicule hybride selon l'une des revendications précédentes, caractérisé en ce que les moyens de blocage comprennent un doigt de parking (2) , coopérant avec la roue de parking (1) sous le contrôle d'un actionneur dédié . 5. Device for immobilizing a hybrid vehicle according to one of the preceding claims, characterized in that the locking means comprise a parking finger (2), cooperating with the parking wheel (1) under the control of a dedicated actuator.
6. Dispositif d'immobilisation d'un véhicule hybride selon l'une des revendications précédentes, caractérisé en ce que ses moyens d' actionnement sont intégrés au système de commande et de contrôle de la boîte de vitesses. -7-6. Device for immobilizing a hybrid vehicle according to one of the preceding claims, characterized in that its actuating means are integrated into the command and control system of the gearbox. -7-
7. Dispositif d'immobilisation d'un véhicule hybride selon l'une des revendications 1 à 5, caractérisé en ce qu'il comprend un actionneur déporté et un système de commande intégré au système de commande et de contrôle de la boîte de vitesses . 7. Device for immobilizing a hybrid vehicle according to one of claims 1 to 5, characterized in that it comprises a remote actuator and a control system integrated into the command and control system of the gearbox.
8. Dispositif d'immobilisation d'un véhicule hybride selon l'une des revendications 1 à 5, caractérisé en ses moyens d' actionnement sont indépendants du système de commande et de contrôle de la boîte de vitesses. 8. Device for immobilizing a hybrid vehicle according to one of claims 1 to 5, characterized in that its actuating means are independent of the command and control system of the gearbox.
9. Boîte de vitesses pilotée de véhicule hybride à arbres parallèles regroupant le mouvement de plusieurs sources motrices (12 13) en direction des roues du véhicule, caractérisée en ce qu'elle comporte un dispositif d'immobilisation conforme à l'une des revendications précédentes . 9. Driven gearbox of a hybrid vehicle with parallel shafts combining the movement of several driving sources (12 13) in the direction of the wheels of the vehicle, characterized in that it comprises an immobilizer device according to one of the preceding claims .
10. Procédé d'immobilisation d'un véhicule hybride disposant d'une boîte de vitesses pilotée à arbres parallèles qui regroupe le mouvement de plusieurs sources motrices (12, 13) en direction des roues du véhicule, et qui comporte des moyens de blocage et des moyens de couplage agencés conformément à l'une des revendications précédentes, caractérisé en ce que l'immobilisation du véhicule est réalisée en opérant successivement le couplage du deuxième pignon (22) sur son arbre, et le blocage de la roue de parking (1) et du premier pignon (18) sur le carter (20) de la boîte. 10. Method for immobilizing a hybrid vehicle having a parallel-shaft driven gearbox which combines the movement of several driving sources (12, 13) in the direction of the wheels of the vehicle, and which comprises locking means and coupling means arranged in accordance with one of the preceding claims, characterized in that the vehicle is immobilized by successively operating the coupling of the second pinion (22) on its shaft, and the locking of the parking wheel (1 ) and the first pinion (18) on the housing (20) of the box.
11. Procédé d'immobilisation d'un véhicule hybride selon la revendication 10, caractérisé en ce que la boîte est maintenue sur un rapport électrique par le deuxième pignon (22) lors du blocage de la roue de parking (1) . 11. A method of immobilizing a hybrid vehicle according to claim 10, characterized in that the box is held in an electrical gear by the second pinion (22) when locking the parking wheel (1).
12. Procédé d'immobilisation d'un véhicule hybride selon la revendication 10, ou 11, caractérisé en ce que le couplage du deuxième pignon (22) sur son arbre est maintenu par l' actionneur de la boîte de vitesses, lors du blocage de la roue de parking (1) sur le carter (20) . 12. A method of immobilizing a hybrid vehicle according to claim 10 or 11, characterized in that the coupling of the second pinion (22) on its shaft is maintained by the actuator of the gearbox, during the blocking of the parking wheel (1) on the casing (20) .
13. Procédé d'immobilisation d'un véhicule hybride selon la revendication 10, 11, ou 12, caractérisé en ce que le blocage de la roue de parking (1) est assuré mécaniquement à partir de la tringlerie de commande d'un sélecteur de vitesses. -8-13. A method of immobilizing a hybrid vehicle according to claim 10, 11, or 12, characterized in that the locking of the parking wheel (1) is ensured mechanically from the control linkage of a selector of speeds. -8-
14. Procédé d'immobilisation d'un véhicule hybride selon la revendication 10, 11 ou 12, caractérisé en ce que le blocage de la roue de parking (1) est assuré par un actionneur électrique. 14. A method of immobilizing a hybrid vehicle according to claim 10, 11 or 12, characterized in that the locking of the parking wheel (1) is ensured by an electric actuator.
EP21734123.9A 2020-08-06 2021-06-21 Device for immobilising a hybrid vehicle, corresponding gearbox and control method Pending EP4193078A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2008345A FR3113308A1 (en) 2020-08-06 2020-08-06 DEVICE FOR IMMOBILIZING A HYBRID VEHICLE, GEARBOX AND CORRESPONDING CONTROL METHOD
PCT/EP2021/066754 WO2022028763A1 (en) 2020-08-06 2021-06-21 Device for immobilising a hybrid vehicle, corresponding gearbox and control method

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EP4193078A1 true EP4193078A1 (en) 2023-06-14

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DE10165097B3 (en) * 2000-07-18 2015-07-23 Schaeffler Technologies AG & Co. KG Double clutch
FR3018107B1 (en) 2014-02-28 2017-07-14 Renault Sas AUTOMATIC TRANSMISSION FOR MOTOR VEHICLE WITH THERMAL OR HYBRID PROPULSION
FR3022495B1 (en) 2014-06-24 2017-12-22 Renault Sas HYBRID TRANSMISSION WITH ELECTRIC MACHINE DEPORTEE AND METHOD OF CONTROLLING REPORTING CHANGES

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