FR2726231A1 - Axle motor with rotary suspension arm for electric or hybrid vehicle - Google Patents

Axle motor with rotary suspension arm for electric or hybrid vehicle Download PDF

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Publication number
FR2726231A1
FR2726231A1 FR9412902A FR9412902A FR2726231A1 FR 2726231 A1 FR2726231 A1 FR 2726231A1 FR 9412902 A FR9412902 A FR 9412902A FR 9412902 A FR9412902 A FR 9412902A FR 2726231 A1 FR2726231 A1 FR 2726231A1
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France
Prior art keywords
vehicle
driving axle
axle according
rotation
wheel
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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.)
Granted
Application number
FR9412902A
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French (fr)
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FR2726231B1 (en
Inventor
Emmanuel Combes
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Automobiles Peugeot SA
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Automobiles Peugeot SA
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Publication date
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Priority to FR9412902A priority Critical patent/FR2726231B1/en
Publication of FR2726231A1 publication Critical patent/FR2726231A1/en
Application granted granted Critical
Publication of FR2726231B1 publication Critical patent/FR2726231B1/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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/026—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected transversally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/06—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
    • B60G21/073—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/02—Resilient suspensions for a single wheel with a single pivoted arm
    • B60G3/12—Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle
    • B60G3/14—Resilient suspensions for a single wheel with a single pivoted arm the arm being essentially parallel to the longitudinal axis of the vehicle the arm being rigid
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/30—In-wheel mountings
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0046—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the vehicle body, i.e. moving independently from the wheel axle
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/46—Wheel motors, i.e. motor connected to only one wheel
    • 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
    • Y02T10/64—Electric machine technologies in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The axle motor (1) drives a non-steered wheel (3) via a speed redn. gear (2) whose casing constitutes both a suspension arm and a wheel bearing, and is rotatable w.r.t. the bodywork (4) about an axis substantially to coincident with a torsion bar (15) through the hollow shaft (11) of the rotor (7). The torsion bar serves as a spring defining the attitude of the vehicle and is fixed at one end to the bodywork while the other end protrudes from the motor casing (9) into a ball or roller bearing (16).

Description

La présente invention concerne un essieu moteur pour véhicule électrique ou hybride comprenant au moins un moteur électrique entraînant une roue non directrice. The present invention relates to a driving axle for an electric or hybrid vehicle comprising at least one electric motor driving a non-steerable wheel.

On connaît un tel essieu moteur comprenant au moins un ensemble à moteur électrique et réducteur de vitesse appelé groupe motopropulseur entraînant la roue non directrice et dont le carter, qui constitue également un bras de suspension et un palier de roue, est mobile en rotation sur la structure du véhicule autour d'un axe de rotation permettant le débattement de la roue. Such a driving axle is known comprising at least one assembly with an electric motor and a speed reducer called a powertrain driving the non-steerable wheel and the casing of which, which also constitutes a suspension arm and a wheel bearing, is movable in rotation on the structure of the vehicle around an axis of rotation allowing the travel of the wheel.

Cependant, la masse du groupe motopropulseur de cet essieu moteur connu influence le comportement dynamique du véhicule dans un sens tendant à affecter la tenue de route et diminuer ainsi le confort du véhicule. However, the mass of the powertrain of this known driving axle influences the dynamic behavior of the vehicle in a direction tending to affect handling and thus reduce the comfort of the vehicle.

La présente invention a pour but d'éliminer l'inconvénient ci-dessus de l'essieu moteur connu. The object of the present invention is to eliminate the above drawback of the known driving axle.

A cet effet, l'invention propose un essieu moteur pour véhicule électrique ou hybride comprenant au moins un ensemble à moteur électrique réducteur de transmission de vitesse ou groupe motopropulseur entraînant une roue non directrice et dont le carter, qui constitue également un bras de suspension et un palier de roue, est mobile en rotation sur la structure du véhicule autour d'un axe de rotation permettant le débattement de la roue, et qui est caractérisé en ce que l'axe de rotation du groupe motopropulseur traversant le carter de celui-ci est confondu avec ou proche de l'axe de rotation du moteur électrique, de telle sorte qu'il y ait un déplacement nul ou limité du centre de gravité de l'ensemble. To this end, the invention provides a driving axle for an electric or hybrid vehicle comprising at least one assembly with an electric motor reducing speed transmission or powertrain driving a non-steerable wheel and including the casing, which also constitutes a suspension arm and a wheel bearing is movable in rotation on the structure of the vehicle about an axis of rotation allowing the travel of the wheel, and which is characterized in that the axis of rotation of the powertrain passing through the casing thereof coincides with or near the axis of rotation of the electric motor, so that there is zero or limited displacement of the center of gravity of the assembly.

Le rotor du moteur électrique est monté sur l'arbre qui supporte le pignon d'entrée du réducteur de transmission précité. The rotor of the electric motor is mounted on the shaft which supports the input pinion of the aforementioned transmission reducer.

Le stator du moteur est pris en sandwich entre deux carters articulés autour de l'axe de rotation précité permettant le débattement de la roue. The stator of the motor is sandwiched between two casings articulated around the aforementioned axis of rotation allowing the travel of the wheel.

Le réducteur de transmission comprend un premier couple de roues coniques dont l'une constitue le pignon d'entrée précité, un arbre intermédiaire monté à rotation dans le bras de suspension du groupe motopropulseur entre le premier couple de roues coniques et un second couple de roues coniques d'entraînement de la roue non directrice. The transmission reduction gear comprises a first pair of bevel wheels, one of which constitutes the aforementioned input pinion, an intermediate shaft rotatably mounted in the suspension arm of the powertrain between the first pair of bevel wheels and a second pair of wheels non-steerable drive wheels.

Le cas échéant, un ou plusieurs trains d'engrenages parallèles ou épicycloïdaux sont disposés entre le moteur et le premier couple de roues coniques. If necessary, one or more parallel or planetary gear trains are arranged between the motor and the first pair of bevel wheels.

Le ressort définissant l'assiette du véhicule est un ressort hélicoïdal ou un ressort à lames ou à gaz. The spring defining the attitude of the vehicle is a helical spring or a leaf or gas spring.

Selon une variante de réalisation, le ressort définissant l'assiette du véhicule est une barre de torsion traversant l'arbre creux supportant le rotor du moteur et ayant l'une de ses extrémités solidaire de la structure du véhicule et son extrémité opposée solidaire de l'un des deux carters du moteur en faisant saillie de ce carter pour être supportée à rotation par la structure du véhicule. According to an alternative embodiment, the spring defining the attitude of the vehicle is a torsion bar passing through the hollow shaft supporting the rotor of the motor and having one of its ends secured to the structure of the vehicle and its opposite end secured to the 'one of the two motor casings projecting from this casing to be rotatably supported by the vehicle structure.

Avantageusement, l'essieu moteur comprend deux groupes motopropulseurs disposés tête-bêche dont chaque carter constitue un bras de suspension et un palier de roue. Advantageously, the drive axle comprises two powertrains arranged head to tail, each casing of which constitutes a suspension arm and a wheel bearing.

Les deux carters respectivement des deux groupes motopropulseurs sont reliés par un moyen permettant d'assurer la stabilité antiroulis du véhicule. The two casings respectively of the two powertrains are connected by a means making it possible to ensure the anti-roll stability of the vehicle.

Le moyen assurant la stabilité antiroulis est un ressort hélicoïdal ou un ressort à lames. The means ensuring anti-roll stability is a coil spring or a leaf spring.

Selon une autre variante de réalisation, le moyen assurant la stabilité antiroulis comprend des membrures radiales portées par les deux carters des groupes motopropulseurs de façon à définir des cavités décalées dont au moins certaines reçoivent respectivement des blocs de caoutchouc. According to another alternative embodiment, the means ensuring anti-roll stability comprises radial members carried by the two casings of the powertrains so as to define offset cavities, at least some of which respectively receive blocks of rubber.

Les blocs de caoutchouc garnissent les cavités de réception de façon symétrique à l'axe longitudinal de rotation des groupes motopropulseurs. The rubber blocks line the receiving cavities symmetrically to the longitudinal axis of rotation of the powertrains.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant plusieurs modes de réalisation de l'invention et dans lesquels
- la figure 1 est une vue schématique de dessus d'un essieu moteur conforme à l'invention;
- la figure 2 est une vue schématique de côté suivant la flèche II de la figure 1;
- la figure 3 représente en vue de dessus un mode de réalisation de l'essieu moteur conforme à l'invention;
- la figure 4 représente en vue de dessus deux groupes motopropulseurs de l'essieu moteur de l'invention;;
- la figure 5 est une vue en coupe suivant la ligne V-V de la figure 4 d'un mode de réalisation d'un moyen permettant d'assurer la stabilité antiroulis du véhicule;
- la figure 6 est une vue en perspective en bout de l'un des carters des deux groupes motopropulseurs de la figure 4; et
- la figure 7 est une vue en coupe suivant la ligne
VII-VII de la figure 5.The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating several modes. of the invention and in which
- Figure 1 is a schematic top view of a drive axle according to the invention;
- Figure 2 is a schematic side view along arrow II of Figure 1;
- Figure 3 shows a top view of an embodiment of the drive axle according to the invention;
- Figure 4 shows a top view of two powertrains of the drive axle of the invention;
- Figure 5 is a sectional view along line VV of Figure 4 of an embodiment of a means for ensuring the anti-roll stability of the vehicle;
- Figure 6 is a perspective end view of one of the casings of the two powertrains of Figure 4; and
- Figure 7 is a sectional view along the line
VII-VII of figure 5.

L'essieu moteur pour véhicule électrique ou hybride tel que représenté schématiquement aux figures 1 et 2 est du type comprenant un ensemble à moteur électrique 1 et réducteur de transmission de vitesse 2, ensemble également appelé groupe motopropulseur, entraînant une roue non directrice 3. The driving axle for an electric or hybrid vehicle as shown diagrammatically in FIGS. 1 and 2 is of the type comprising an assembly with an electric motor 1 and a speed transmission reducer 2, an assembly also called powertrain, driving a non-steerable wheel 3.

Le carter de ce groupe motopropulseur, notamment celui du réducteur de transmission de vitesse 2 constitue également un bras de suspension et un palier de la roue 3. Ce carter est mobile en rotation sur la structure 4 du véhicule autour d'un axe de rotation A-A' permettant le débattement de la roue 3. The casing of this powertrain, in particular that of the speed transmission reduction gear 2 also constitutes a suspension arm and a bearing of the wheel 3. This casing is movable in rotation on the structure 4 of the vehicle around an axis of rotation AA '' allowing the travel of the wheel 3.

Ce groupe motopropulseur est ainsi du type à bras tiré et de par sa disposition et son architecture fait également office d'essieu à bras oscillant déjà mentionné ci-dessus. Ce groupe motopropulseur cumule les fonctions de propulsion électrique (traction, freinage) et les fonctions de liaison au sol à savoir guidage de la roue 3 par rapport à la structure 4 du véhicule en respectant les degrés de liberté nécessaires à un bon confort et une tenue de route sûre du véhicule; ressort 5 interposé entre la partie formant bras oscillant du groupe motopropulseur et la structure 4 du véhicule; amortissement par un élément d'amortissement 6 monté articulé entre le groupe motopropulseur et la structure 4 du véhicule; et effet stabilisateur antiroulis par des moyens qui seront décrits ultérieurement. This powertrain is thus of the trailing arm type and by virtue of its arrangement and architecture also acts as an axle with a swinging arm already mentioned above. This powertrain combines the electric propulsion functions (traction, braking) and the ground connection functions, namely guiding the wheel 3 relative to the structure 4 of the vehicle while respecting the degrees of freedom necessary for good comfort and holding. safe route of the vehicle; spring 5 interposed between the part forming the oscillating arm of the powertrain and the structure 4 of the vehicle; damping by a damping element 6 mounted articulated between the powertrain and the structure 4 of the vehicle; and anti-roll stabilizing effect by means which will be described later.

Selon l'invention, l'axe de rotation A-A' de l'ensemble constitué par le groupe motopropulseur et la roue 3 est confondu ou proche de l'axe de rotation du moteur électrique 1 de sorte que la masse de ce moteur peut être considérée comme suspendue. Cette masse est alors sans incidence sur le comportement dynamique du véhicule, c'est-à-dire que le moteur électrique 1 suit en rotation les mouvements de la roue 3, mais sa masse réduite non suspendue est faible. According to the invention, the axis of rotation AA ′ of the assembly constituted by the powertrain and the wheel 3 is coincident or close to the axis of rotation of the electric motor 1 so that the mass of this motor can be considered as suspended. This mass has no effect on the dynamic behavior of the vehicle, that is to say that the electric motor 1 rotates the movements of the wheel 3, but its reduced unsprung mass is low.

La figure 3 représente un mode de réalisation de l'essieu moteur de l'invention où l'axe de rotation du groupe motopropulseur et de la roue 3 est sensiblement confondu à l'axe de rotation du moteur électrique 1. FIG. 3 represents an embodiment of the drive axle of the invention where the axis of rotation of the powertrain and of the wheel 3 is substantially coincident with the axis of rotation of the electric motor 1.

Comme représenté en figure 3, le moteur électrique 1 est constitué d'un rotor 7 et d'un stator 8 (circuit magnétique et bobinages) pris en sandwich entre deux carters 9, 10 du moteur 1 articulés autour de l'axe A-A' sur la structure 4 du véhicule. Le rotor 7 du moteur 1 est monté sur un arbre creux 11 traversant les carters 9, 10 et monté à rotation dans ceux-ci respectivement par l'intermédiaire de deux roulements à billes ou à aiguilles 12, 13. Le carter 10 du moteur 1 constitue à la fois le carter moteur, le carter réducteur, le bras de suspens ion de la roue 3 ainsi que le palier de celle-ci. Le carter 10 est de plus monté à rotation sur la structure 4 du véhicule par l'intermédiaire d'un roulement à billes ou à aiguilles 14 pour permettre le débattement de la roue 3. As shown in FIG. 3, the electric motor 1 consists of a rotor 7 and a stator 8 (magnetic circuit and coils) sandwiched between two casings 9, 10 of the motor 1 articulated around the axis AA 'on the structure 4 of the vehicle. The rotor 7 of the motor 1 is mounted on a hollow shaft 11 passing through the casings 9, 10 and rotatably mounted therein respectively by means of two ball or needle bearings 12, 13. The casing 10 of the motor 1 constitutes at the same time the motor housing, the reduction housing, the suspension arm of the wheel 3 as well as the bearing of the latter. The casing 10 is also mounted for rotation on the structure 4 of the vehicle by means of a ball or needle bearing 14 to allow the travel of the wheel 3.

L'arbre creux 11 est traversé par une barre de torsion 15 confondue sensiblement avec l'axe de rotation A-A' du groupe motopropulseur. Cette barre de torsion 15 fait office de ressort définissant l'assiette du véhicule et la position réciproque groupe motopropulseur/structure 4 du véhicule et remplace ainsi le ressort 5 de la figure 2. La barre de torsion 15 est fixée à l'une de ses extrémités à la structure 4 du véhicule tandis que son extrémité opposée est solidaire du carter 9 et fait saillie de celui-ci en étant montée à rotation sur la structure 4 du véhicule par l'intermédiaire d'un roulement à billes ou à aiguilles 16. The hollow shaft 11 is crossed by a torsion bar 15 substantially coincident with the axis of rotation A-A 'of the powertrain. This torsion bar 15 acts as a spring defining the attitude of the vehicle and the reciprocal position powertrain / structure 4 of the vehicle and thus replaces the spring 5 of FIG. 2. The torsion bar 15 is fixed to one of its ends to the structure 4 of the vehicle while its opposite end is integral with the casing 9 and projects therefrom by being mounted for rotation on the structure 4 of the vehicle by means of a ball or needle bearing 16.

Le réducteur de transmission 2 est du type comprenant un premier couple de roues coniques 17, 18, dont l'une 17 est supportée par l'extrémité correspondante de l'arbre creux 11 et un second couple de roues coniques 19, 20 entraînant la roue non directrice 3 et lié cinématiquement au premier couple de roues coniques par un arbre intermédiaire 21 monté à rotation dans le carter 10 par l'intermédiaire de deux roulements opposés à billes ou à aiguilles 22, 23. L'arbre intermédiaire 21 porte à ses deux extrémités respectivement la roue conique 18 du premier couple et la roue conique 19 du second couple.Dans le cas où le moteur électrique 1 est du type à régime de rotation élevé et que le rapport de réduction possible par les deux couples de roues coniques (environ 1/25 maximum) est trop faible, un ou plusieurs trains d'engrenages parallèles ou épicycloïdaux, ou une boite de vitesses, peuvent être disposés entre le moteur 1 et le premier couple de roues coniques 17, 18 ou en aval, près du moyeu de roue. The transmission reduction gear 2 is of the type comprising a first pair of bevel wheels 17, 18, one of which 17 is supported by the corresponding end of the hollow shaft 11 and a second pair of bevel wheels 19, 20 driving the wheel non-directing 3 and kinematically linked to the first pair of bevel wheels by an intermediate shaft 21 rotatably mounted in the casing 10 by means of two opposite ball or needle bearings 22, 23. The intermediate shaft 21 carries two ends respectively the bevel wheel 18 of the first couple and the bevel wheel 19 of the second couple. In the case where the electric motor 1 is of the high rotation speed type and that the reduction ratio possible by the two pairs of bevel wheels (approximately 1/25 maximum) is too low, one or more parallel or planetary gear trains, or a gearbox, can be arranged between motor 1 and the first pair of bevel wheels 17, 18 or downstream, near the wheel hub.

La figure 4 représente un essieu complet selon lequel deux groupes motopropulseurs la, 2a; lb, 2b sont disposés tête-bêche et dont chaque carter 9a, 10a; 9b, 10b constitue un bras de suspension et un palier de roue 3. Les deux carters 9a, 10a; 9b, 10b des deux groupes motopropulseurs sont reliés par un moyen permettant d'assurer la stabilité antiroulis du véhicule et constitué comme représenté en figure 4 par un ressort hélicoïdal 24. Le moyen permettant d'assurer cette stabilité antiroulis du véhicule peut également être constitué par un ressort à lames.  FIG. 4 represents a complete axle according to which two powertrains la, 2a; 1b, 2b are arranged head to tail and each of which casing 9a, 10a; 9b, 10b constitutes a suspension arm and a wheel bearing 3. The two casings 9a, 10a; 9b, 10b of the two powertrains are connected by a means making it possible to ensure the anti-roll stability of the vehicle and constituted as shown in FIG. 4 by a helical spring 24. The means making it possible to ensure this anti-roll stability of the vehicle can also be constituted by a leaf spring.

Les figures 5 à 7 représentent un autre mode de réalisation du moyen assurant la stabilité antiroulis du véhicule. Figures 5 to 7 show another embodiment of the means ensuring the anti-roll stability of the vehicle.

Comme représenté, ce moyen comprend des membrures radiales 25a; 25b portées respectivement par les deux carters 9a; 9b des deux groupes motopropulseurs de façon à définir entre elles des cavités décalées 26 dont au moins certaines reçoivent respectivement des blocs de caoutchouc 27 formant ressorts. Les membrures 25a; 25b ont leurs extrémités opposées à celles solidaires des carters 9a; 9b raccordées à une bague centrale 28a; 28b traversée par la borne de torsion 15 de la figure 3. Les blocs de caoutchouc 27 peuvent être reliés entre eux pour des raisons de facilité de montage et leur forme et raideur influencent l'efficacité et la progressivité de l'antiroulis du véhicule. Les blocs de caoutchouc 27 garnissent les cavités 25 de façon à reprendre les efforts dans les deux sens et de façon symétrique à l'axe longitudinal de rotation des groupes motopropulseurs pour éviter les efforts non compensés. As shown, this means comprises radial members 25a; 25b carried respectively by the two casings 9a; 9b of the two powertrains so as to define between them offset cavities 26, at least some of which respectively receive rubber blocks 27 forming springs. The frames 25a; 25b have their ends opposite to those secured to the casings 9a; 9b connected to a central ring 28a; 28b crossed by the torsion terminal 15 of FIG. 3. The rubber blocks 27 can be connected together for reasons of ease of assembly and their shape and stiffness influence the efficiency and the progressiveness of the anti-roll of the vehicle. The rubber blocks 27 line the cavities 25 so as to take up the forces in both directions and symmetrically to the longitudinal axis of rotation of the powertrains to avoid uncompensated forces.

D'autres modifications peuvent être apportées à l'essieu moteur sans sortir du cadre de la présente invention. Ainsi, le ressort définissant l'assiette du véhicule au lieu d'être du type hélicoïdal peut être du type à lames. Other modifications can be made to the drive axle without departing from the scope of the present invention. Thus, the spring defining the attitude of the vehicle instead of being of the helical type can be of the leaf type.

L'essieu moteur de l'invention est ainsi conçu de façon que le groupe motopropulseur correspondant soit rigide et sans articulation interne tout en permettant efficacement le débattement de la roue non motrice autour de l'axe de rotation A-A'.  The drive axle of the invention is thus designed so that the corresponding powertrain is rigid and without internal articulation while effectively allowing the movement of the non-driving wheel around the axis of rotation A-A '.

Claims (14)

REVENDICATIONS 1. Essieu moteur pour véhicule électrique ou hybride comprenant au moins un ensemble à moteur électrique (1) et réducteur de transmission de vitesse (2) ou groupe motopropulseur entraînant une roue non directrice (3) et dont le carter, qui constitue également un bras de suspension et un palier de roue (3), est mobile en rotation sur la structure (4) du véhicule autour d'un axe de rotation (A-A') permettant le débattement de la roue (3), caractérisé en ce que l'axe de rotation (A-A') du groupe motopropulseur (1, 2) traversant le carter de ce groupe motopropulseur est confondu avec ou proche de l'axe de rotation du moteur électrique (1). 1. Driving axle for an electric or hybrid vehicle comprising at least one assembly with an electric motor (1) and speed transmission reducer (2) or powertrain driving a non-steerable wheel (3) and including the casing, which also constitutes an arm suspension and a wheel bearing (3), is movable in rotation on the structure (4) of the vehicle around an axis of rotation (A-A ') allowing the travel of the wheel (3), characterized in that the axis of rotation (A-A ') of the powertrain (1, 2) passing through the casing of this powertrain is coincident with or near the axis of rotation of the electric motor (1). 2. Essieu moteur selon la revendication 1, caractérisé en ce que le rotor (7) du moteur électrique (1) est monté sur l'arbre (11) qui supporte le pignon d'entrée (17) du réducteur de transmission (2) précité. 2. Driving axle according to claim 1, characterized in that the rotor (7) of the electric motor (1) is mounted on the shaft (11) which supports the input pinion (17) of the transmission reducer (2) cited above. 3. Essieu moteur selon la revendication 1 ou 2, caractérisé en ce que le stator (8) du moteur électrique (1) est pris en sandwich entre deux carters (9, 10) articulés autour de l'axe de rotation (A-A') précité permettant le débattement de la roue (3). 3. Driving axle according to claim 1 or 2, characterized in that the stator (8) of the electric motor (1) is sandwiched between two housings (9, 10) articulated around the axis of rotation (A-A ') above allowing the movement of the wheel (3). 4. Essieu moteur selon l'une des revendications précédentes, caractérisé en ce que le réducteur de transmission (2) comprend un premier couple de roues coniques (17, 18) dont l'une (17) constitue le pignon d'entrée (17) précité, un arbre intermédiaire (21) monté à rotation dans le bras de suspension du groupe motopropulseur entre le premier couple de roues coniques (17, 18) et un second couple de roues coniques (19, 20) d'entraînement de la roue non directrice (3). 4. Driving axle according to one of the preceding claims, characterized in that the transmission reducer (2) comprises a first pair of bevel wheels (17, 18) one of which (17) constitutes the input pinion (17 ) mentioned above, an intermediate shaft (21) rotatably mounted in the suspension arm of the powertrain between the first pair of bevel wheels (17, 18) and a second couple of bevel wheels (19, 20) for driving the wheel non-directing (3). 5. Essieu moteur selon la revendication 4, caractérisé en ce qu'un ou plusieurs trains d'engrenages parallèles ou épicycloïdaux sont disposés entre le moteur (1) et le premier couple de roues coniques (17, 18).  5. Driving axle according to claim 4, characterized in that one or more parallel or planetary gear trains are arranged between the engine (1) and the first pair of bevel wheels (17, 18). 6. Essieu moteur selon l'une des revendications précédentes, caractérisé en ce que le ressort définissant l'assiette du véhicule est un ressort hélicoïdal (5). 6. Driving axle according to one of the preceding claims, characterized in that the spring defining the attitude of the vehicle is a helical spring (5). 7. Essieu moteur selon l'une des revendications 1 à 5, caractérisé en ce que le ressort définissant l'assiette du véhicule est un ressort à lames. 7. Driving axle according to one of claims 1 to 5, characterized in that the spring defining the attitude of the vehicle is a leaf spring. 8. Essieu moteur selon l'une des revendications 1 à 5, caractérisé en ce que le ressort définissant l'assiette du véhicule est une barre de torsion (15) traversant l'arbre creux (11) supportant le rotor (7) du moteur (1) et ayant l'une de ses extrémités solidaire de la structure (4) du véhicule et son extrémité opposée solidaire de l'un (9) des deux carters (9, 10) du moteur (1) en faisant saillie de ce carter (9) pour être supportée à rotation par la structure (4) du véhicule. 8. Driving axle according to one of claims 1 to 5, characterized in that the spring defining the attitude of the vehicle is a torsion bar (15) passing through the hollow shaft (11) supporting the rotor (7) of the engine (1) and having one of its ends secured to the structure (4) of the vehicle and its opposite end secured to one (9) of the two casings (9, 10) of the engine (1) projecting from this casing (9) to be rotatably supported by the structure (4) of the vehicle. 9. Essieu moteur selon l'une des revendications précédentes, caractérisé en ce qu'il comprend deux groupes motopropulseurs (la, 2a; lb, 2b) disposés tête-bêche dont chaque carter (9a, 10a; 9b, 10b) constitue un bras de suspension et un palier de roue (3). 9. Driving axle according to one of the preceding claims, characterized in that it comprises two powertrains (la, 2a; lb, 2b) arranged head to tail, each casing (9a, 10a; 9b, 10b) constituting an arm suspension and a wheel bearing (3). 10. Essieu moteur selon la revendication 9, caractérisé en ce que les deux carters (9a, 10a; 9b, 10b) respectivement des deux groupes motopropulseurs sont reliés par un moyen (24) permettant d'assurer la stabilité antiroulis du véhicule. 10. Driving axle according to claim 9, characterized in that the two casings (9a, 10a; 9b, 10b) respectively of the two powertrains are connected by means (24) making it possible to ensure the anti-roll stability of the vehicle. 11. Essieu moteur selon la revendication 10, caractérisé en ce que le moyen assurant la stabilité antiroulis est un ressort hélicoïdal (24). 11. Driving axle according to claim 10, characterized in that the means ensuring anti-roll stability is a helical spring (24). 12. Essieu moteur selon la revendication 10, caractérisé en ce que le moyen assurant la stabilité antirouli est un ressort à lames. 12. Driving axle according to claim 10, characterized in that the means ensuring anti-roll stability is a leaf spring. 13. Essieu moteur selon la revendication 10, caractérisé en ce que le moyen assurant la stabilité antiroulis du véhicule comprend des membrures radiales (25a; 25b) portées respectivement par les deux carters (9a; 9b) des groupes motopropulseurs de façon à définir des cavités décalées (26) dont au moins certaines reçoivent respectivement des blocs de caoutchouc (27). 13. Driving axle according to claim 10, characterized in that the means ensuring the anti-roll stability of the vehicle comprises radial members (25a; 25b) carried respectively by the two casings (9a; 9b) of the powertrains so as to define cavities staggered (26) at least some of which respectively receive rubber blocks (27). 14. Essieu moteur selon la revendication 13, caractérisé en ce que les blocs de caoutchouc (27) garnissent les cavités de réception (26) de façon symétrique à l'axe longitudinal de rotation des groupes motopropulseurs.  14. Driving axle according to claim 13, characterized in that the rubber blocks (27) line the receiving cavities (26) symmetrically with the longitudinal axis of rotation of the powertrains.
FR9412902A 1994-10-27 1994-10-27 MOTOR AXLE FOR ELECTRIC OR HYBRID VEHICLE Expired - Fee Related FR2726231B1 (en)

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FR2763284A1 (en) * 1997-05-16 1998-11-20 Conception & Dev Michelin Sa PACKAGE INCLUDING A WHEEL AND INTEGRATED WHEEL SUSPENSION
EP1336525A2 (en) * 2002-02-15 2003-08-20 ArvinMeritor Technology, LLC Drive system
GB2389085B (en) * 2002-05-30 2005-09-07 Agco Gmbh & Co Vehicle suspension
WO2006062125A1 (en) * 2004-12-09 2006-06-15 Equos Research Co., Ltd. Wheel supporting and driving device
US7077409B2 (en) 2003-10-20 2006-07-18 Agco Gmbh Vehicle suspension
WO2006094740A1 (en) * 2005-03-08 2006-09-14 Zf Friedrichshafen Ag Individual wheel drive for individually suspended wheels of a motor vehicle
EP2021200A2 (en) * 2006-05-01 2009-02-11 American Axle & Manufacturing, Inc. Vehicle with hybrid power train providing part-time all-wheel drive
FR2923752A3 (en) * 2007-11-16 2009-05-22 Renault Sas Rear suspension device for terrestrial vehicle e.g. four wheel motor vehicle, has protective case for rear wheel incorporating transmission belt and forming suspension arm on which part of associated shock absorbing system is fixed
EP2199137A1 (en) * 2008-12-18 2010-06-23 Klingelnberg AG Lateral wheel motor assembly
CN101804774A (en) * 2009-02-17 2010-08-18 株式会社万都 The regenerative damping apparatus that is used for vehicle
EP2332760A1 (en) * 2009-12-09 2011-06-15 Kanzaki Kokyukoki Mfg. Co., Ltd. Electric transaxle unit
DE102009054821A1 (en) * 2009-12-17 2011-06-22 ZF Friedrichshafen AG, 88046 Gear arrangement e.g. wheel drive, for wheel of motor vehicle, has gear units comprising intermediate shaft and pivotably arranged relative to each other around common intermediate shaft, where arrangement is connected to drive motor
FR2958227A1 (en) * 2010-04-06 2011-10-07 Akka Ingenierie Produit MOTOR POWERS
WO2011148098A1 (en) 2010-05-27 2011-12-01 Peugeot Citroën Automobiles SA Device for attaching a unit having an electric motor
DE102011005618A1 (en) * 2011-03-16 2012-09-20 Zf Friedrichshafen Ag Drive device for driving a wheel for an electrically driven vehicle
US8701806B2 (en) 2009-03-18 2014-04-22 Kanzaki Kokyukoki Mfg. Co., Ltd. Electric transaxle unit
FR3028807A1 (en) * 2014-11-26 2016-05-27 Renault Sa SUSPENSION DEVICE FOR MOTOR VEHICLE FIT TO TRANSMIT MOTOR TORQUE
FR3050151A1 (en) * 2016-04-13 2017-10-20 Renault Sas ELECTRIFIC RIGID AXLE FOR REAR AXLE OF MOTOR VEHICLE
FR3052110A1 (en) * 2016-06-03 2017-12-08 Peugeot Citroen Automobiles Sa STANDARDIZED MOTOR AXLE FOR MOTOR VEHICLE HAVING ELECTRICAL MACHINES
WO2020216749A1 (en) * 2019-04-24 2020-10-29 Valeo Embrayages Housing assembly for powertrain and vehicle powertrain, range of housing assemblies for powertrains and range of vehicle powertrains

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FR2763284A1 (en) * 1997-05-16 1998-11-20 Conception & Dev Michelin Sa PACKAGE INCLUDING A WHEEL AND INTEGRATED WHEEL SUSPENSION
US6113119A (en) * 1997-05-16 2000-09-05 Conception Et Developpement Michelin S.A. Assembly comprising a wheel and a suspension integrated into the wheel
EP1336525A2 (en) * 2002-02-15 2003-08-20 ArvinMeritor Technology, LLC Drive system
EP1336525A3 (en) * 2002-02-15 2005-12-14 ArvinMeritor Technology, LLC Drive system
GB2389085B (en) * 2002-05-30 2005-09-07 Agco Gmbh & Co Vehicle suspension
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WO2006062125A1 (en) * 2004-12-09 2006-06-15 Equos Research Co., Ltd. Wheel supporting and driving device
WO2006094740A1 (en) * 2005-03-08 2006-09-14 Zf Friedrichshafen Ag Individual wheel drive for individually suspended wheels of a motor vehicle
US7708293B2 (en) 2005-03-08 2010-05-04 Zf Friedrichshafen Ag Individual wheel drive for individually suspended wheels of a motor vehicle
EP2021200A2 (en) * 2006-05-01 2009-02-11 American Axle & Manufacturing, Inc. Vehicle with hybrid power train providing part-time all-wheel drive
EP2021200A4 (en) * 2006-05-01 2009-09-02 American Axle & Mfg Inc Vehicle with hybrid power train providing part-time all-wheel drive
FR2923752A3 (en) * 2007-11-16 2009-05-22 Renault Sas Rear suspension device for terrestrial vehicle e.g. four wheel motor vehicle, has protective case for rear wheel incorporating transmission belt and forming suspension arm on which part of associated shock absorbing system is fixed
EP2199137A1 (en) * 2008-12-18 2010-06-23 Klingelnberg AG Lateral wheel motor assembly
CN101804774A (en) * 2009-02-17 2010-08-18 株式会社万都 The regenerative damping apparatus that is used for vehicle
US8701806B2 (en) 2009-03-18 2014-04-22 Kanzaki Kokyukoki Mfg. Co., Ltd. Electric transaxle unit
EP2332760A1 (en) * 2009-12-09 2011-06-15 Kanzaki Kokyukoki Mfg. Co., Ltd. Electric transaxle unit
DE102009054821A1 (en) * 2009-12-17 2011-06-22 ZF Friedrichshafen AG, 88046 Gear arrangement e.g. wheel drive, for wheel of motor vehicle, has gear units comprising intermediate shaft and pivotably arranged relative to each other around common intermediate shaft, where arrangement is connected to drive motor
FR2958227A1 (en) * 2010-04-06 2011-10-07 Akka Ingenierie Produit MOTOR POWERS
WO2011148098A1 (en) 2010-05-27 2011-12-01 Peugeot Citroën Automobiles SA Device for attaching a unit having an electric motor
FR2960480A1 (en) * 2010-05-27 2011-12-02 Peugeot Citroen Automobiles Sa DEVICE FOR FIXING AN ELECTRIC MOTOR ASSEMBLY
DE102011005618A1 (en) * 2011-03-16 2012-09-20 Zf Friedrichshafen Ag Drive device for driving a wheel for an electrically driven vehicle
FR3028807A1 (en) * 2014-11-26 2016-05-27 Renault Sa SUSPENSION DEVICE FOR MOTOR VEHICLE FIT TO TRANSMIT MOTOR TORQUE
WO2016083707A1 (en) * 2014-11-26 2016-06-02 Renault S.A.S. Motor vehicle suspension device which can transmit engine torque
FR3050151A1 (en) * 2016-04-13 2017-10-20 Renault Sas ELECTRIFIC RIGID AXLE FOR REAR AXLE OF MOTOR VEHICLE
FR3052110A1 (en) * 2016-06-03 2017-12-08 Peugeot Citroen Automobiles Sa STANDARDIZED MOTOR AXLE FOR MOTOR VEHICLE HAVING ELECTRICAL MACHINES
WO2020216749A1 (en) * 2019-04-24 2020-10-29 Valeo Embrayages Housing assembly for powertrain and vehicle powertrain, range of housing assemblies for powertrains and range of vehicle powertrains
FR3095410A1 (en) * 2019-04-24 2020-10-30 Valeo Embrayages Vehicle powertrain and powertrain housing kit, range of powertrain housing kits and vehicle powertrain range.
CN114007882A (en) * 2019-04-24 2022-02-01 法雷奥离合器公司 Housing assembly for a drive train, and vehicle drive train, series of housing assemblies for a drive train, and series of vehicle drive trains

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