FR2830592A1 - Automatic gearbox comprises primary and secondary shafts with primary and secondary pinions with input clutch connected to primary shaft and torque distribution clutch connected to secondary shaft - Google Patents
Automatic gearbox comprises primary and secondary shafts with primary and secondary pinions with input clutch connected to primary shaft and torque distribution clutch connected to secondary shaft Download PDFInfo
- Publication number
- FR2830592A1 FR2830592A1 FR0112781A FR0112781A FR2830592A1 FR 2830592 A1 FR2830592 A1 FR 2830592A1 FR 0112781 A FR0112781 A FR 0112781A FR 0112781 A FR0112781 A FR 0112781A FR 2830592 A1 FR2830592 A1 FR 2830592A1
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- FR
- France
- Prior art keywords
- primary
- shaft
- torque distribution
- pinions
- clutch
- 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.)
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Classifications
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
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- 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
- F16H3/12—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 with means for synchronisation not incorporated in the clutches
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0407—Synchronisation before shifting by control of clutch in parallel torque path
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H2061/0425—Bridging torque interruption
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
- F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
- F16H61/688—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
Abstract
Description
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Transmission à boîte de vitesses robotisée avec embrayage de répartition de couple et pompe hydraulique. Transmission with robotic gearbox with torque distribution clutch and hydraulic pump.
La présente invention se rapporte à une transmission-à boîte de vitesses robotisée avec embrayage de répartition de couple et pompe hydraulique. The present invention relates to a robotic gearbox transmission with torque distribution clutch and hydraulic pump.
En dehors des transmissions manuelles sur lesquelles les changements de vitesses impliquent une interruption du couple pendant le débrayage et les transmissions automatiques sur lesquelles les changements de vitesses s'effectuent sous couple, il existe des transmissions dites"robotisées"comportant une boîte de vitesses mécanique équipée d'actionneurs, et un embrayage, actionnés de façon coordonnée par un"robot". Apart from manual transmissions on which the gear changes imply an interruption of the torque during the clutch release and the automatic transmissions on which the gear changes take place under torque, there are so-called "robotic" transmissions comprising a mechanical gearbox equipped actuators, and a clutch, actuated in a coordinated manner by a "robot".
Le document FR-A-2 786 842 révèle un procédé et un dispositif permettant, sur une transmission à boîte de vitesses robotisée, d'effectuer les changements de vitesses montants sans interruption de couple, par utilisation d'un embrayage de répartition de couple à l'aide duquel le couple est dérivé sur un rapport plus élevé avant décrabotage, le changement de rapport s'effectuant sans débrayage au niveau de l'embrayage d'entrée de la boîte, qui n'intervient que pour les démarrages en marche avant et en marche arrière. Document FR-A-2 786 842 discloses a method and a device making it possible, on a robotic gearbox transmission, to make upshift changes without interrupting torque, by using a torque distribution clutch with using which the torque is derived on a higher gear before declutching, the gear change being effected without disengagement at the input clutch of the gearbox, which only intervenes for startings in forward gear and backwards.
Le document précité ne donne pas de précisions quant l'implantation de cet embrayage de répartition de couple, ni quant à l'implantation et à l'entraînement de la pompe hydraulique nécessaire à l'actionnement de la boîte et de l'embrayage de répartition de couple. The aforementioned document does not give any details as to the location of this torque distribution clutch, nor as to the location and drive of the hydraulic pump necessary for actuating the gearbox and the distribution clutch of couple.
Dans un but de standardisation, il est désirable de pouvoir utiliser le plus possible d'éléments communs sur différentes versions d'un même modèle et même sur différents modèles de véhicules automobiles. For the purpose of standardization, it is desirable to be able to use as many common elements as possible on different versions of the same model and even on different models of motor vehicles.
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Au niveau des transmissions, cela concerne par exemple l'implantation des différents éléments et notamment des carters, qui doivent de préférence être les mêmes pour différentes versions des boîtes de vitesses. Pour l'implantation d'une pompe hydraulique sur une transmission à actionneurs hydrauliques, il s'agit en particulier de ne pas augmenter la longueur de la boîte par la présence de la pompe tout en permettant à la pompe de fonctionner dans les meilleures conditions, ce qui implique un entraînement de la pompe même lorsque l'embrayage d'entrée est ouvert. In terms of transmissions, this relates for example to the location of the various elements and in particular the casings, which should preferably be the same for different versions of the gearboxes. For the installation of a hydraulic pump on a transmission with hydraulic actuators, it is in particular not to increase the length of the box by the presence of the pump while allowing the pump to operate in the best conditions, which involves driving the pump even when the input clutch is open.
La présente invention vise une transmission à boîte de vitesses robotisée avec un embrayage de répartition de couple et une pompe hydraulique s'intégrant sous un encombrement réduit à la boîte de vitesses. The present invention relates to a transmission with a robotic gearbox with a torque distribution clutch and a hydraulic pump which can be integrated into the gearbox in a small space.
L'invention vise par ailleurs une transmission à boîte de vitesses robotisée avec un embrayage de répartition de couple et une pompe hydraulique s'intégrant d'une manière particulièrement simple à une architecture de boîte de vitesses existante, moyennant un coût réduit. The invention further relates to a robotic gearbox transmission with a torque distribution clutch and a hydraulic pump integrating in a particularly simple manner into an existing gearbox architecture, at a reduced cost.
La transmission objet de l'invention à boîte de vitesses robotisée avec embrayage de répartition de couple et pompe hydraulique, comprend une boîte de vitesses équipée au moins d'un arbre primaire et de pignons primaires sur ledit arbre primaire, et d'un arbre secondaire et de pignons secondaires montés fous sur ledit arbre secondaire, un embrayage d'entrée associé à l'arbre primaire à une première extrémité de la boîte, et un embrayage de répartition de couple. L'embrayage de répartition de couple est associé à l'arbre secondaire à la seconde extrémité opposée de la boîte, en étant intercalé entre le pignon secondaire du rapport le plus élevé et l'arbre secondaire. L'arbre primaire comprend un arbre primaire extérieur creux relié à l'embrayage d'entrée et un arbre primaire intérieur traversant l'arbre primaire extérieur pour s'étendre à travers l'embrayage d'entrée audelà de la première extrémité de la boîte jusqu'à la sortie du moteur. Les pignons primaires à l'exception du pignon primaire du rapport le plus élevé sont solidaires de l'arbre primaire extérieur. Le pignon primaire du rapport le plus élevé est solidaire de la seconde extrémité opposée de l'arbre primaire intérieur. La pompe hydraulique est implantée à la seconde extrémité de la boîte à l'intérieur de cette dernière en étant entraînée directement par le pignon primaire du rapport le plus élevé. The object of the invention transmission robotized gearbox with torque distribution clutch and hydraulic pump, comprises a gearbox equipped at least with a primary shaft and primary gears on said primary shaft, and a secondary shaft and secondary pinions idly mounted on said secondary shaft, an input clutch associated with the primary shaft at a first end of the gearbox, and a torque distribution clutch. The torque distribution clutch is associated with the secondary shaft at the second opposite end of the gearbox, being interposed between the secondary gear of the highest ratio and the secondary shaft. The primary shaft includes a hollow outer primary shaft connected to the input clutch and an inner primary shaft traversing the outer primary shaft to extend through the input clutch beyond the first end of the box to 'at the engine outlet. The primary gears except the primary gear of the highest ratio are integral with the outer primary shaft. The primary gear of the highest ratio is integral with the second opposite end of the inner primary shaft. The hydraulic pump is located at the second end of the box inside the latter, being driven directly by the primary gear of the highest ratio.
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On pourrait certes envisager, par exemple, d'implanter une pompe hydraulique à la première extrémité de la boîte et de l'entraîner en prenant le mouvement au niveau du volant moteur de l'embrayage d'entrée, par l'intermédiaire d'un renvoi. Une telle prise de mouvement se ferait cependant sur un diamètre trop important, donc à une vitesse trop importante pour une pompe classique. De plus, le train d'engrenages ne serait pas situé à l'intérieur de la boîte. Enfin, il se créerait une protubérance qui gênerait l'accouplement moteur-carter d'embrayagecarter de boîte. We could certainly consider, for example, installing a hydraulic pump at the first end of the box and driving it by taking the movement at the flywheel of the input clutch, via a reference. Such a power take-off would however be made on a too large diameter, therefore at a speed too large for a conventional pump. In addition, the gear train would not be located inside the box. Finally, a protuberance would be created which would hamper the engine-clutch housing coupling.
On pourrait également envisager, tout en conservant l'agencement général de la solution selon l'invention en ce qui concerne l'arbre primaire et l'arbre secondaire et l'implantation de l'embrayage de répartition de couple, d'entraîner directement par l'arbre primaire intérieur une pompe implantée dans la boîte, soit entre le pignon primaire du rapport le plus élevé et le pignon primaire le plus proche solidaire de l'arbre primaire extérieur, soit au-delà du pignon primaire du rapport le plus élevé. Dans le premier cas, cette implantation de la pompe intercalée entre les deux pignons primaires ne pourrait se faire qu'au prix d'une augmentation de la longueur de la boîte. Dans le second cas, compte tenu du diamètre de l'embrayage de répartition de couple disposé à la seconde extrémité de la boîte dans le prolongement de l'arbre secondaire, il serait impossible de loger le pompe dans le même plan que cet embrayage, ce qui impliquerait donc un décalage de la pompe, d'où un allongement de la boîte. One could also envisage, while retaining the general arrangement of the solution according to the invention as regards the primary shaft and the secondary shaft and the location of the torque distribution clutch, to drive directly by the internal primary shaft a pump located in the box, either between the primary gear of the highest ratio and the nearest primary gear secured to the external primary shaft, or beyond the primary gear of the highest ratio. In the first case, this implantation of the pump interposed between the two primary pinions could only be done at the cost of an increase in the length of the box. In the second case, given the diameter of the torque distribution clutch disposed at the second end of the gearbox in line with the secondary shaft, it would be impossible to accommodate the pump in the same plane as this clutch, this which would therefore imply an offset of the pump, hence an elongation of the box.
La pompe peut, dans le cadre de l'invention, comporter un pignon d'entrée engrenant directement avec le pignon primaire de rapport le plus élevé. La pompe peut dans ce cas être constituée par une pompe classique, par exemple une pompe à engrenages externes ou internes. The pump may, in the context of the invention, include an input pinion meshing directly with the primary gear of the highest ratio. The pump can in this case be constituted by a conventional pump, for example an external or internal gear pump.
En se référant aux dessins schématiques annexés, on va décrire ci-après plus en détail un mode de réalisation illustratif et non limitatif du dispositif conforme à l'invention ; sur les dessins : - la figure 1 représente schématiquement l'architecture générale d'une transmission à boîte cinq vitesses avec embrayage de répartition de couple ; et - la figure 2 représente un mode d'implantation et d'entraînement Referring to the appended schematic drawings, an illustrative and nonlimiting embodiment of the device according to the invention will be described below in more detail; in the drawings: - Figure 1 schematically shows the general architecture of a five-speed gearbox transmission with torque distribution clutch; and - Figure 2 shows a layout and training mode
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conforme à l'invention d'une pompe hydraulique sur une transmission du type selon la figure 1
Selon la figure 1, une transmission avec boîte cinq vitesses robotisée comprend un arbre primaire 1 et un arbre secondaire 2. L'arbre primaire 1 porte cinq pignons primaires de marche avant 1.1, 2.1, 3.1, 4.1 et 5.1 et un pignon primaire de marche arrière 6.1, tous ces pignons étant solidaires de l'arbre 1. L'arbre primaire 1 est relié à une première extrémité de la boîte par un embrayage d'entrée 8 à l'arbre de sortie d'un moteur thermique non représenté. according to the invention of a hydraulic pump on a transmission of the type according to Figure 1
According to FIG. 1, a transmission with a robotic five-speed gearbox comprises a primary shaft 1 and a secondary shaft 2. The primary shaft 1 carries five primary forward gears 1.1, 2.1, 3.1, 4.1 and 5.1 and a primary gear rear 6.1, all these pinions being integral with the shaft 1. The primary shaft 1 is connected to a first end of the box by an input clutch 8 to the output shaft of a heat engine not shown.
Des pignons secondaires de marche avant 1.2, 2.2, 3.2, 4.2 et 5.2 sont montés fous sur l'arbre secondaire 2, tandis qu'un pignon d'attaque ou de sortie 9 est solidaires de l'arbre secondaire 2, à ladite première extrémité de la boîte. Secondary forward gears 1.2, 2.2, 3.2, 4.2 and 5.2 are idly mounted on the secondary shaft 2, while a drive or output pinion 9 is integral with the secondary shaft 2, at said first end of the box.
On reconnaît par ailleurs deux synchroniseurs 10 et 11, solidaires de l'arbre secondaire 2, pour les pignons secondaires 1.2, 2.2 et 3.2, 4.2, respectivement, et un pignon secondaire de marche arrière 6.2 solidaire du synchroniseur 11. We also recognize two synchronizers 10 and 11, integral with the secondary shaft 2, for the secondary pinions 1.2, 2.2 and 3.2, 4.2, respectively, and a secondary reverse gear 6.2 integral with the synchronizer 11.
On n'a pas représenté sur cette figure l'arbre intermédiaire de marche arrière, les moyens d'actionnement de l'embrayage 8 et de la boîte, les roulements, les carters de fermeture, le système central de pilotage et le calculateur de la transmission. This intermediate shaft for reverse gear, the means for actuating the clutch 8 and the gearbox, the bearings, the casings for closure, the central control system and the computer of the transmission.
La figure 2 illustre l'architecture générale de la transmission suivant l'invention. La transmission suivant la figure 2 diffère de la transmission suivant la figure 1, du point de vue architecture générale, par le fait que l'arbre primaire est composé de deux arbres coaxiaux, à savoir d'un arbre primaire extérieur 12 creux relié à la sortie de l'embrayage 8, et d'un arbre primaire intérieur 13 traversant l'arbre 12 axialement de part en part et prolongé au-delà de l'embrayage d'entrée 8, à travers ce dernier, jusqu'à l'arbre de sortie du moteur non représenté. FIG. 2 illustrates the general architecture of the transmission according to the invention. The transmission according to FIG. 2 differs from the transmission according to FIG. 1, from the general architecture point of view, by the fact that the primary shaft is composed of two coaxial shafts, namely of a hollow external primary shaft 12 connected to the output of the clutch 8, and of an internal primary shaft 13 passing through the shaft 12 axially right through and extended beyond the input clutch 8, through the latter, to the shaft motor output not shown.
Les pignons primaires 1.1, 2.1, 3.1, 4.1 et 6.1 sont solidaires de l'arbre primaire extérieur 12, tandis que le pignon primaire 5.1 est solidaire de l'arbre primaire intérieur 13 à son extrémité dépassant de l'arbre primaire extérieur du côté de la seconde extrémité de la boîte. The primary pinions 1.1, 2.1, 3.1, 4.1 and 6.1 are secured to the outer primary shaft 12, while the primary gear 5.1 is secured to the inner primary shaft 13 at its end projecting from the outer primary shaft on the side of the second end of the box.
Le pignon primaire 5.1 qui correspond au rapport le plus élevé de la boîte sert de prise de mouvement à une pompe hydraulique 14 qui The primary pinion 5.1 which corresponds to the highest gear ratio of the gearbox serves as a power take-off for a hydraulic pump 14 which
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alimente les actionneurs non représentés de la boîte et de l'embrayage de répartition de couple 7. La pompe qui peut être une pompe classique, par exemple une pompe à engrenages externes ou internes, comporte un pignon d'entrée 15 qui peut engrener directement avec le pignon 5.1, grâce au diamètre réduit de ce dernier. supplies the actuators, not shown, of the gearbox and of the torque distribution clutch 7. The pump, which can be a conventional pump, for example an external or internal gear pump, comprises an input pinion 15 which can mesh directly with the pinion 5.1, thanks to the reduced diameter of the latter.
Cette implantation de la pompe 14, à l'intérieur de la boîte, peut se faire sans augmentation de la longueur de la boîte par rapport à celle d'une boîte cinq vitesses manuelle. This implantation of the pump 14, inside the box, can be done without increasing the length of the box relative to that of a manual five-speed box.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0112781A FR2830592B1 (en) | 2001-10-04 | 2001-10-04 | ROBOTIZED GEARBOX TRANSMISSION WITH TORQUE DISTRIBUTOR CLUTCH AND HYDRAULIC PUMP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0112781A FR2830592B1 (en) | 2001-10-04 | 2001-10-04 | ROBOTIZED GEARBOX TRANSMISSION WITH TORQUE DISTRIBUTOR CLUTCH AND HYDRAULIC PUMP |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2830592A1 true FR2830592A1 (en) | 2003-04-11 |
| FR2830592B1 FR2830592B1 (en) | 2004-07-30 |
Family
ID=8867923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0112781A Expired - Fee Related FR2830592B1 (en) | 2001-10-04 | 2001-10-04 | ROBOTIZED GEARBOX TRANSMISSION WITH TORQUE DISTRIBUTOR CLUTCH AND HYDRAULIC PUMP |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2830592B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534034A (en) * | 2014-12-24 | 2015-04-22 | 重庆青山工业有限责任公司 | Transmission for automatic double-clutch gearbox |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497222A (en) * | 1982-01-05 | 1985-02-05 | Mazda Motor Corporation | Clutch control in a multiple clutch type gear transmission for automobile |
| US4660441A (en) * | 1984-05-25 | 1987-04-28 | Automotive Products Plc | Transmission control system |
| FR2786842A1 (en) | 1998-12-04 | 2000-06-09 | Renault | Process and gearbox for changing gear with drive under load for a motor vehicle |
-
2001
- 2001-10-04 FR FR0112781A patent/FR2830592B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497222A (en) * | 1982-01-05 | 1985-02-05 | Mazda Motor Corporation | Clutch control in a multiple clutch type gear transmission for automobile |
| US4660441A (en) * | 1984-05-25 | 1987-04-28 | Automotive Products Plc | Transmission control system |
| FR2786842A1 (en) | 1998-12-04 | 2000-06-09 | Renault | Process and gearbox for changing gear with drive under load for a motor vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534034A (en) * | 2014-12-24 | 2015-04-22 | 重庆青山工业有限责任公司 | Transmission for automatic double-clutch gearbox |
| CN104534034B (en) * | 2014-12-24 | 2017-10-17 | 重庆青山工业有限责任公司 | A kind of double-clutch automatic gearbox transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2830592B1 (en) | 2004-07-30 |
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Effective date: 20130628 |