FR2811395A1 - Gearbox for hybrid vehicle includes a principal driving shaft driven by the IC engine and an auxiliary shaft driven by the electric motor, in relation via the synchronizer - Google Patents

Gearbox for hybrid vehicle includes a principal driving shaft driven by the IC engine and an auxiliary shaft driven by the electric motor, in relation via the synchronizer Download PDF

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Publication number
FR2811395A1
FR2811395A1 FR0008820A FR0008820A FR2811395A1 FR 2811395 A1 FR2811395 A1 FR 2811395A1 FR 0008820 A FR0008820 A FR 0008820A FR 0008820 A FR0008820 A FR 0008820A FR 2811395 A1 FR2811395 A1 FR 2811395A1
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France
Prior art keywords
shaft
pinions
driving shaft
electric motor
driven
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Granted
Application number
FR0008820A
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French (fr)
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FR2811395B1 (en
Inventor
Jean Paul Petiot
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PSA Automobiles SA
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Peugeot Citroen Automobiles SA
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Application granted granted Critical
Publication of FR2811395B1 publication Critical patent/FR2811395B1/en
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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • 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
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • 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
    • 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
    • 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
    • F16H3/089—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 all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
    • 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
    • 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)
  • Structure Of Transmissions (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

Gearbox has primary line (XX') including a principal driving shaft (3) driven by the IC engine (1) and an auxiliary shaft (4) driven by the electric motor (2). The primary shaft (3) is surrounded by the secondary shaft (4) and each shaft is carrying pinions (30,31,40,41), to cooperate with the receiving line (YY'). The two driving shafts are in relation via the synchronizer (43). The pinions of both the driving shafts are fixed while the pinions of the receiving line (YY') are mobile in translation and blocked when necessary by the sliding gear (53,63).

Description

La présente invention concerne une boîte de vitesses mécanique, pour unThe present invention relates to a mechanical gearbox, for a

véhicule à propulsion hybride. Par l'expression "propulsion hybride", on entendra  hybrid powered vehicle. The expression "hybrid drive" means

dans la présente description, et dans les revendications  in the present description, and in the claims

qui suivent, une propulsion qui est réalisée à partir d'un moteur thermique et/ou d'un moteur électrique, le  which follow, a propulsion which is carried out from a heat engine and / or an electric motor, the

véhicule étant équipé de ces deux types de moteur.  vehicle being equipped with these two types of engine.

La boîte de vitesses qui fait l'objet de l'invention est du type comportant des lignes primaire et secondaire parallèles, à savoir une ligne primaire motrice et une ligne secondaire réceptrice du mouvement, laquelle entraîne un différentiel qui commande à son tour  The gearbox which is the subject of the invention is of the type comprising parallel primary and secondary lines, namely a primary drive line and a secondary line receiving the movement, which drives a differential which in turn controls

les roues motrices du véhicule.the driving wheels of the vehicle.

L'invention a pour but de proposer une boîte de vitesses du type cidessus indiqué, qui soit d'une conception relativement simple et compacte et qui évite les ruptures de couple lors du passage d'une vitesse à une autre, en utilisant de façon appropriée comme source  The object of the invention is to propose a gearbox of the type indicated above, which is of a relatively simple and compact design and which avoids torque breakdowns when changing from one gear to another, using appropriately as source

motrice l'un et/ou l'autre des deux moteurs.  drive one and / or the other of the two motors.

Ce but est atteint, conformément à l'invention, grâce au fait que: + la ligne primaire est constituée d'un arbre menant principal entraîné en rotation par le moteur thermique par l'intermédiaire d'un embrayage, et d'un arbre menant auxiliaire tubulaire qui entoure coaxialement l'arbre menant principal et qui est entraîné en rotation par le moteur électrique, ces deux arbres étant mutuellement libres en rotation, - l'arbre menant principal et l'arbre menant auxiliaire portent chacun au moins deux pignons, ces pignons présentant tous des diamètres différents, répartis selon un ordre de diamètre croissant et alternativement sur les deux arbres menants, - un système est prévu pour lier en rotation l'arbre menant principal et l'arbre menant auxiliaire, et - la ligne secondaire comprend un arbre mené qui porte au moins quatre pignons qui sont chacun en prise avec l'un des pignons de l'arbre menant principal ou de  This object is achieved, in accordance with the invention, thanks to the fact that: + the primary line consists of a main driving shaft rotated by the heat engine via a clutch, and a driving shaft tubular auxiliary which coaxially surrounds the main driving shaft and which is rotated by the electric motor, these two shafts being mutually free to rotate, - the main driving shaft and the auxiliary driving shaft each carry at least two pinions, these pinions all having different diameters, distributed in increasing order of diameter and alternately on the two drive shafts, - a system is provided for rotating the main driving shaft and the auxiliary driving shaft, and - the secondary line comprises a driven shaft which carries at least four pinions which are each engaged with one of the pinions of the main driving shaft or

l'arbre menant auxiliaire.the auxiliary drive shaft.

De préférence, l'arbre menant principal porte un pignon correspondant à la première vitesse, les pignons correspondant aux rapports de vitesses impairs étant portés par l'arbre menant principal, tandis que les pignons correspondant aux rapports de vitesses pairs sont  Preferably, the main driving shaft carries a pinion corresponding to the first speed, the pinions corresponding to the odd speed ratios being carried by the main driving shaft, while the pinions corresponding to the even speed ratios are

portés par l'arbre menant auxiliaire.  carried by the auxiliary drive shaft.

Le système permettant de lier en rotation les deux arbres menants peut notamment être constitué par un  The system allowing the two driving shafts to be linked in rotation can in particular be constituted by a

synchroniseur ou un crabot.synchronizer or dog clutch.

Enfin, et de façon préférée, les pignons portés par les arbres menants sont solidaires de ces arbres, tandis que les pignons portés par l'arbre mené sont des pignons fous, des baladeurs permettant de solidariser  Finally, and preferably, the pinions carried by the drive shafts are integral with these trees, while the pinions carried by the driven shaft are idler gears, sliding gears making it possible to secure

sélectivement l'un de ces pignons fous avec l'arbre mené.  selectively one of these idler gears with the driven shaft.

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

plus clairement de la description qui suit et qui est  more clearly from the description which follows and which is

faite en référence à la figure annexée.  made with reference to the appended figure.

Cette figure unique est une vue générale, très schématique, d'un exemple de réalisation de la boîte de  This single figure is a general view, very schematic, of an exemplary embodiment of the box

vitesses selon l'invention.speeds according to the invention.

Les références XX' et YY' désignent les lignes primaire et, respectivement, secondaire de la boîte de vitesses. Ces deux lignes sont parallèles, disposées à  References XX 'and YY' denote the primary and, respectively, secondary lines of the gearbox. These two lines are parallel, arranged at

proximité l'une de l'autre.close to each other.

Dans l'exemple illustré, la ligne primaire XX' est  In the example illustrated, the primary line XX 'is

placée au-dessus de la ligne secondaire YY'.  placed above the secondary line YY '.

Le moteur thermique, qui est par exemple un moteur à quatre temps, à essence ou du type diesel, porte la  The heat engine, which is for example a four-stroke engine, petrol or diesel type, carries the

référence 1.reference 1.

Le moteur électrique est référencé 2. Il comporte un stator central et un rotor annulaire référencés  The electric motor is referenced 2. It comprises a central stator and an annular rotor referenced

respectivement 20 et 21.20 and 21 respectively.

La ligne primaire XX' est constituée d'une paire d'arbres menants, à savoir un arbre principal 3 et un  The primary line XX 'is made up of a pair of drive shafts, namely a main shaft 3 and a

arbre auxiliaire tubulaire 4.tubular auxiliary shaft 4.

L'arbre 3 est entraîné en rotation par le moteur thermique 1, ceci par l'intermédiaire d'un embrayage 10  The shaft 3 is rotated by the heat engine 1, this by means of a clutch 10

de type connu.of known type.

Dans sa portion d'extrémité qui est opposée à l'extrémité comportant l'embrayage 10, cet arbre 3 possède une paire de pignons de diamètres différents 30, 31. L'axe du moteur électrique 2 coïncide avec la ligne XX', le rotor 21 entourant le stator 20 qui lui-même  In its end portion which is opposite the end comprising the clutch 10, this shaft 3 has a pair of pinions of different diameters 30, 31. The axis of the electric motor 2 coincides with the line XX ', the rotor 21 surrounding stator 20 which itself

entoure coaxialement l'arbre 3 qui le traverse.  coaxially surrounds the shaft 3 which passes through it.

Avantageusement, le stator 20 est solidaire d'une  Advantageously, the stator 20 is integral with a

partie fixe 200 constitutive du carter de l'embrayage 10.  fixed part 200 constituting the clutch housing 10.

Le moteur électrique 2 est donc contenu dans ce carter. L'arbre creux auxiliaire 4 est traversé par l'arbre principal 3 et il est libre en rotation par rapport à ce  The electric motor 2 is therefore contained in this casing. The auxiliary hollow shaft 4 is crossed by the main shaft 3 and it is free to rotate relative to this

dernier.latest.

L'arbre 4 est notablement plus court que l'arbre 3, celui-ci dépassant largement à ses deux extrémités, d'un côté par la portion équipée de l'embrayage 10, de l'autre  The shaft 4 is significantly shorter than the shaft 3, the latter extending well at its two ends, on one side by the portion equipped with the clutch 10, on the other

par la portion munie des pignons 30, 31.  by the portion provided with pinions 30, 31.

L'arbre tubulaire 4 est solidaire à l'une de ses  The tubular shaft 4 is integral with one of its

extrémités du rotor 21.rotor ends 21.

Dans sa portion d'extrémité opposée, cet arbre 4 porte une paire de pignons 40, 41 de diamètres différents. Chacun des pignons 30, 31, 40, 41 est immobilisé sur son arbre porteur, aussi bien en rotation qu'en  In its opposite end portion, this shaft 4 carries a pair of pinions 40, 41 of different diameters. Each of the pinions 30, 31, 40, 41 is immobilized on its carrier shaft, both in rotation and in

translation.translation.

Les pignons sont répartis sur l'arbre menant principal 3 et sur l'arbre menant auxiliaire 4, de telle sorte que leur diamètre va dans un ordre croissant et alternativement sur l'un et l'autre des deux arbres  The pinions are distributed on the main driving shaft 3 and on the auxiliary driving shaft 4, so that their diameter goes in an increasing order and alternately on one and the other of the two shafts

menants.menants.

Ainsi, dans l'exemple illustré sur la figure unique, les pignons 30 et 31 portés par l'arbre principal 3 correspondent à des rapports de première et de troisième vitesses, tandis que les pignons 40 et 41 portés par l'arbre auxiliaire 4 correspondent à des  Thus, in the example illustrated in the single figure, the pinions 30 and 31 carried by the main shaft 3 correspond to first and third gear ratios, while the pinions 40 and 41 carried by the auxiliary shaft 4 correspond Has

rapports de deuxième et quatrième vitesses.  second and fourth gear ratios.

Le pignon correspondant à la première vitesse est de préférence porté par l'arbre principal 3 qui est un  The pinion corresponding to the first speed is preferably carried by the main shaft 3 which is a

arbre plein.solid tree.

En effet, le pignon correspondant à la première vitesse est le pignon de plus petit diamètre. Pour limiter la taille du pignon correspondant situé sur la ligne secondaire, il est donc préférable que ce pignon soit porté par l'arbre plein 3 plutôt que par l'arbre tubulaire 4 qui entoure l'arbre 3 et a donc un plus grand diamètre. Ainsi, dans l'exemple de réalisation illustré sur la figure, les pignons correspondant à des rapports de vitesses impairs sont portés par l'arbre principal 3, tandis que les pignons correspondant à des rapports de vitesse pairs sont portés par l'arbre auxiliaire 4. Des organes appropriés, tels que des paliers de roulement référencés 300, 400, assurent le guidage en  Indeed, the pinion corresponding to the first speed is the pinion of smaller diameter. To limit the size of the corresponding pinion located on the secondary line, it is therefore preferable for this pinion to be carried by the solid shaft 3 rather than by the tubular shaft 4 which surrounds the shaft 3 and therefore has a larger diameter. Thus, in the embodiment illustrated in the figure, the pinions corresponding to odd speed ratios are carried by the main shaft 3, while the pinions corresponding to even speed ratios are carried by the auxiliary shaft 4 Appropriate members, such as rolling bearings referenced 300, 400, provide guidance in

rotation des deux arbres 3, 4 de la ligne primaire.  rotation of the two shafts 3, 4 of the primary line.

Dans l'exemple illustré, le palier 300 réalise le guidage d'une extrémité de l'arbre 3, du côté opposé à l'embrayage, tandis que le palier 400 assure le guidage de l'arbre tubulaire 4 dans sa portion comprise entre le  In the example illustrated, the bearing 300 guides one end of the shaft 3, on the side opposite to the clutch, while the bearing 400 guides the tubular shaft 4 in its portion between the

moteur électrique 2 et les pignons 40, 41.  electric motor 2 and the pinions 40, 41.

L'arbre 4 est lui-même guidé en rotation sur l'arbre central 3, si bien que les deux arbres 3, 4 sont  The shaft 4 is itself guided in rotation on the central shaft 3, so that the two shafts 3, 4 are

parfaitement guidés en rotation.perfectly guided in rotation.

Des moyens appropriés, non représentés, assurent également l'immobilisation axiale de chacun des deux arbres. Un système permettant de lier les deux arbres  Appropriate means, not shown, also ensure the axial immobilization of each of the two shafts. A system to link the two trees

menants 3 et 4 est prévu sur la ligne primaire XX'.  leading 3 and 4 is planned on the primary line XX '.

Ce système de liaison peut notamment prendre la forme d'un baladeur 43 qui est solidaire en rotation de  This connection system can in particular take the form of a walkman 43 which is integral in rotation with

l'arbre menant principal 3.the main tree 3.

La ligne secondaire YY' comprend un arbre 5, dit mené. Des paliers d'extrémité appropriés 500, 501  The secondary line YY ′ comprises a shaft 5, said to be driven. Suitable end bearings 500, 501

assurent le guidage en rotation de cet arbre 5.  guide this shaft in rotation 5.

L'arbre 5 porte deux paires de pignons 50-51 et 60-  Shaft 5 carries two pairs of sprockets 50-51 and 60-

61, ces pignons étant de diamètres différents.  61, these pinions being of different diameters.

Les pignons 50, 51 sont en prise, respectivement,  The pinions 50, 51 are in engagement, respectively,

avec les pignons 30, 31 de l'arbre 3.  with the pinions 30, 31 of the shaft 3.

Les pignons 50, 51 sont normalement montés fous sur l'arbre 5. Cependant, il est prévu un baladeur 53, interposé entre ces deux pignons et solidaire en rotation  The pinions 50, 51 are normally mounted idly on the shaft 5. However, there is a sliding gear 53, interposed between these two pinions and integral in rotation

de l'arbre 5.from the tree 5.

Par déplacement du baladeur 53, dans un sens ou dans l'autre, suivant la direction longitudinale YY', il est possible de solidariser en rotation ce baladeur 53 et, corrélativement, l'arbre 5 avec l'un des deux pignons  By displacement of the player 53, in one direction or the other, in the longitudinal direction YY ', it is possible to secure this player 53 in rotation and, correspondingly, the shaft 5 with one of the two pinions

ou 51, ceci de manière sélective.or 51, this selectively.

De la même manière, les pignons 60, 61 sont tous deux montés fous sur l'arbre 5. Un baladeur 63 disposé entre les deux pignons permet de solidariser sélectivement l'un ou l'autre d'entre eux avec cet arbre 5. De façon générale, la somme des rayons de deux pignons mutuellement en prise correspond bien entendu à  In the same way, the pinions 60, 61 are both mounted idly on the shaft 5. A sliding rod 63 disposed between the two pinions makes it possible to selectively secure one or the other of them with this shaft 5. From in general, the sum of the radii of two pinions mutually engaged of course corresponds to

la valeur d'entraxe des deux lignes XX', YY'.  the center distance value of the two lines XX ', YY'.

L'arbre 5 porte également un pignon 70 dont il est solidaire aussi bien en rotation qu'en translation. Dans l'exemple illustré sur la figure, ce pignon 70 est situé  The shaft 5 also carries a pinion 70 of which it is integral both in rotation and in translation. In the example illustrated in the figure, this pinion 70 is located

entre le pignon 60 et le palier 501.  between the pinion 60 and the bearing 501.

Le pignon 70, dit " pignon d'attaque " engrène avec  The pinion 70, called "drive pinion" meshes with

la couronne 71 du différentiel 8.crown 71 of differential 8.

De manière connue, le différentiel 8 entraîne deux demi-essieux 81, 82 qui portent chacun l'une des roues  In known manner, the differential 8 drives two half-axles 81, 82 which each carry one of the wheels

motrices du véhicule.driving the vehicle.

Le fonctionnement de cette boîte de vitesses est le suivant. Au démarrage du véhicule, on pilote le débrayage de  The operation of this gearbox is as follows. When the vehicle starts, the clutch is controlled.

l'embrayage 10.clutch 10.

Le système de liaison 43 entre les deux arbres  The connection system 43 between the two shafts

menants 3 et 4 est activé.leading 3 and 4 is activated.

Le moteur électrique 2 est mis en marche, ce qui permet de démarrer le véhicule en première, grâce au  The electric motor 2 is started, which allows the vehicle to start first, thanks to the

moteur électrique.electric motor.

Le moteur thermique 1 est ensuite démarré et on pilote l'activation de l'embrayage 10. Ensuite, les deux arbres 3 et 4 peuvent être décrabotés, l'arbre 3 étant entraîné uniquement par le  The heat engine 1 is then started and the activation of the clutch 10 is piloted. Then, the two shafts 3 and 4 can be declutched, the shaft 3 being driven only by the

moteur thermique 1.heat engine 1.

A partir d'une certaine vitesse du véhicule, on change le rapport de vitesses en déplacant le baladeur 63 vers le moteur électrique 2 pour solidariser le pignon 60  From a certain vehicle speed, the gear ratio is changed by moving the player 63 towards the electric motor 2 to secure the pinion 60

et l'arbre 5.and tree 5.

Le moteur électrique 2 est mis en route pour entraîner le pignon 40 qui est en prise avec le pignon 60  The electric motor 2 is started to drive the pinion 40 which is engaged with the pinion 60

de la ligne secondaire.of the secondary line.

Lors de ce passage de la première vitesse à la deuxième vitesse, la puissance du moteur thermique est  During this change from first speed to second speed, the power of the heat engine is

augmentée afin de ne pas avoir de rupture de couple.  increased so as not to have a break in torque.

L'entraînement du véhicule en seconde est ensuite assuré par le moteur électrique 2, l'embrayage 10 étant débrayé. Lorsque la vitesse du véhicule augmente encore et qu'un nouveau changement de vitesse doit interve4ir, l'embrayage 10 est activé et on actionne le système de liaison 43, de telle sorte que l'arbre menant 3 est entraîné à la fois par le moteur électrique 2 et par le  The vehicle is driven in seconds by the electric motor 2, the clutch 10 being disengaged. When the vehicle speed increases further and a new gear change must take place, the clutch 10 is activated and the linkage system 43 is actuated, so that the drive shaft 3 is driven both by the engine electric 2 and by the

moteur thermique 1.heat engine 1.

Le baladeur 53 est déplacé vers le palier 500 pour solidariser le pignon 51 et l'arbre 5 et, en même temps, la puissance du moteur électrique est augmentée pour éviter une rupture de couple lors du décrabotage du  The player 53 is moved to the bearing 500 to secure the pinion 51 and the shaft 5 and, at the same time, the power of the electric motor is increased to avoid a break in torque when the clutch is clutched.

baladeur 63 et du crabotage du baladeur 53.  player 63 and the clutch of the player 53.

L'entraînement du véhicule en troisième est ensuite  The vehicle drive in third is then

assuré par le moteur thermique.provided by the heat engine.

Le passage de la troisième à la quatrième vitesse s'effectue de manière similaire à celui du passage de la première à la seconde vitesses, ou de la seconde à la troisième. De même, lorsque la vitesse du véhicule diminue, le passage à une vitesse inférieure peut être effectué de  The transition from third to fourth gear takes place in a similar way to that from the first to the second gear, or from the second to the third gear. Similarly, when the vehicle speed decreases, the change to a lower speed can be made from

manière similaire, pour éviter toute rupture de couple.  similarly, to avoid torque breakdown.

Ainsi, la boite de vitesses selon l'invention permet, avec une structure très simple et compacte, d'assurer le passage d'une vitesse à une autre sans rupture de couple, en pilotant de façon appropriée le moteur électrique et le système de liaison entre les deux  Thus, the gearbox according to the invention makes it possible, with a very simple and compact structure, to ensure the passage from one gear to another without breaking the torque, by appropriately controlling the electric motor and the connection system. between the two

arbres menants.leading trees.

On peut encore noter que, grâce au crabotage des deux arbres menants 3 et 4, tous les rapports de vitesse prévus dans la boite de vitesses selon l'invention peuvent fonctionner avec le moteur thermique seul ou encore avec le moteur électrique seul, ce qui contribue encore à la souplesse d'utilisation de cette boite de vitesses. Enfin, I les pignons portés par les arbres menants pourraient aussi être montés fous, les pignons portés par  It can also be noted that, thanks to the interconnection of the two driving shafts 3 and 4, all the gear ratios provided in the gearbox according to the invention can operate with the heat engine alone or even with the electric motor alone, which contributes still the flexibility of use of this gearbox. Finally, I the pinions carried by the drive shafts could also be mounted idly, the pinions carried by

l'arbre mené étant alors solidaires de cet arbre.  the driven shaft then being integral with this tree.

Les signes de référence insérés après les caractéristiques techniques figurant dans les  The reference signs inserted after the technical characteristics appearing in the

revendications ont pour seul but de faciliter la  claims are intended only to facilitate the

compréhension de ces dernières et ne sauraient en limiter  understanding of these and cannot limit them

la portée.the scope.

Claims (4)

REVENDICATIONS 1. Boite de vitesses mécanique, pour véhicule à propulsion hybride, réalisée à partir d'un moteur thermique (1) et/ou d'un moteur électrique (2), qui comporte une ligne primaire (XX') et une ligne secondaire (YY') parallèles, à savoir une ligne primaire (XX') motrice et une ligne secondaire (YY') réceptrice du mouvement, caractérisée en ce que: - la ligne primaire (XX') est constituée d'un arbre menant principal (3) entraîné en rotation par le moteur thermique (1) par l'intermédiaire d'un embrayage (10), et d'un arbre menant auxiliaire tubulaire (4) qui entoure coaxialement l'arbre menant principal (3) et qui est entraîné en rotation par le moteur électrique (2), ces deux arbres (3, 4) étant mutuellement libres en rotation, - l'arbre menant principal (3) et l'arbre menant auxiliaire (4) portent chacun au moins deux pignons (30, 31; 40, 41), ces pignons présentant tous des diamètres différents, répartis selon un ordre de diamètre croissant et alternativement sur les deux arbres menants (3, 4), - un système (43) est prévu pour relier en rotation l'arbre menant principal (3) et l'arbre menant auxiliaire (4) et - la ligne secondaire (YY') comprend un arbre mené (5) qui porte au moins quatre pignons (50, 51; 60, 61) qui sont chacun en prise avec l'un des pignons (30, 31; , 41) de l'arbre menant principal (3) ou de l'arbre  1. Mechanical gearbox for a hybrid propulsion vehicle, produced from a heat engine (1) and / or an electric motor (2), which comprises a primary line (XX ') and a secondary line ( YY ') parallel, namely a primary line (XX') driving and a secondary line (YY ') receiving the movement, characterized in that: - the primary line (XX') consists of a main driving shaft (3 ) driven in rotation by the heat engine (1) by means of a clutch (10), and a tubular auxiliary drive shaft (4) which coaxially surrounds the main drive shaft (3) and which is driven in rotation by the electric motor (2), these two shafts (3, 4) being mutually free to rotate, - the main driving shaft (3) and the auxiliary driving shaft (4) each carry at least two pinions (30, 31; 40, 41), these pinions all having different diameters, distributed in an order of increasing diameter and alternately on the two driving shafts (3, 4), - a system (43) is provided for connecting in rotation the main driving shaft (3) and the auxiliary driving shaft (4) and - the secondary line (YY ') comprises a driven shaft (5) which carries at least four pinions (50, 51; 60, 61) which are each engaged with one of the pinions (30, 31;, 41) of the main driving shaft (3) or of the shaft menant auxiliaire (4).auxiliary drive (4). 2. Boîte de vitesses selon la revendication 1, caractérisée en ce que l'arbre menant principal (1) porte un pignon (30) correspondant au premier rapport de vitesses, les pignons (30, 31) correspondant aux rapports de vitesses impairs étant portés par l'arbre menant principal (3) , tandis que les pignons (40, 41) correspondant aux rapports de vitesses pairs sont portés par l'arbre menant auxiliaire (4).  2. Gearbox according to claim 1, characterized in that the main driving shaft (1) carries a pinion (30) corresponding to the first gear ratio, the pinions (30, 31) corresponding to the odd gear ratios being worn by the main drive shaft (3), while the pinions (40, 41) corresponding to the even gear ratios are carried by the auxiliary drive shaft (4). 3. Boîte de vitesses selon la revendication 1 ou 2, caractérisée en que le système (43) pour lier en rotation les deux arbres menants (3, 4) est constitué par un3. Gearbox according to claim 1 or 2, characterized in that the system (43) for rotationally linking the two driving shafts (3, 4) consists of a synchroniseur ou un crabot.synchronizer or dog clutch. 4. Boite de vitesses selon l'une des revendications  4. Gearbox according to one of claims 1 à 3, caractérisée en ce que les pignons (30, 31; 40, 41) portés par les deux arbres menants (3, 4) sont solidaires de ces arbres, tandis que les pignons (50, 51, , 61) portés par l'arbre mené (5) sont des pignons fous, des baladeurs (53, 63) permettant de solidariser  1 to 3, characterized in that the pinions (30, 31; 40, 41) carried by the two driving shafts (3, 4) are integral with these trees, while the pinions (50, 51,, 61) carried by the driven shaft (5) are idler gears, sliding gears (53, 63) used to secure sélectivement l'un de ces pignons fous avec l'arbre mené.  selectively one of these idler gears with the driven shaft.
FR0008820A 2000-07-06 2000-07-06 GEARBOX FOR HYBRID VEHICLE Expired - Fee Related FR2811395B1 (en)

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