# US 9,751,391 B2 · Transmission assembly for a motor vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,751,391 B2 - Document ID: US9751391B2 - Status: Granted - Kind: B2 - Application number: 14/427,341 - Filed: 2013-09-20 - Published: 2015-08-20 - Granted: 2017-09-05 - Earliest claimed: 2012-09-25 - Assignees: Valeo Equipements Electriques Moteur - Applicants: Valeo Equipements Electriques Moteur - Inventors: Fabien Lebeau; Khadija El Baraka; Svetislav Jugovic; Vicent Cornet; Gilles Lebas - Web page: https://patentgrep.com/patent/US9751391B2 ## CPC - B60K 6/40: characterised by the assembly or relative disposition of components - B60K 6/26: characterised by the motors or the generators - B60K 6/387: Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means - B60K 6/405: Housings - B60K 6/48: Parallel type - B60L 50/16: with provision for separate direct mechanical propulsion - B60W 30/20: Reducing vibrations in the driveline - F16D 13/38: with flat clutching surfaces, e.g. discs - F16F 15/13121: {characterised by clutch arrangements, e.g. for activation; integrated with clutch members, e.g. pressure member} - F16F 15/20: Suppression of vibrations of rotating systems by favourable grouping or relative arrangements of the moving members of the system or systems {(F16F15/24 takes precedence)} - H02K 3/28: Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) - H02K 3/522: {for generally annular cores with salient poles} - H02K 7/006: {Structural association of a motor or generator with the drive train of a motor vehicle} - H02K 7/108: with friction clutches - B60K 2006/4825: {Electric machine connected or connectable to gearbox input shaft} - B60W 2030/206: {related or induced by the engine} - B60Y 2300/58: Engine torque vibration dampers, e.g. flywheels, dual-mass-springs - B60Y 2400/4242: of dry type - B60Y 2400/48: Vibration dampers, e.g. dual mass flywheels - F16F 15/123: Wound springs {(F16F15/1213, F16F15/1216, F16F15/127 take precedence)} - F16F 15/134: Wound springs {(F16F15/1333, F16F15/1337, F16F15/137 take precedence)} - H02K 2203/06: Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations - H02K 2203/09: Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations - H02K 2203/12: Machines characterised by the bobbins for supporting the windings - Y02T 10/62: Hybrid vehicles - Y02T 10/64: Electric machine technologies in electromobility - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y10S 903/951: Assembly or relative location of components - 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 - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A transmission assembly for a motor vehicle having a gearbox including a clutch, a clutch-release device, a reversible rotary electric machine provided with a rotor provided with a central opening, and an intermediate shaft between the clutch and the rotor of the electric machine, the shaft supporting the clutch-release device at the front and being inserted in the central opening of the rotor. The transmission assembly includes a dry friction clutch provided with a reaction plate, and comprises, at the front, a damping double flywheel configured such as to be attached to the crankshaft of the heat engine of the vehicle and to form the reaction plate of the dry friction clutch and, at the rear, a torsion damper configured such as to be rotatably connected to the input shaft of the gearbox, the rotor of the electric machine being attached to the torsion damper. ## Claims ### Claim 1 Transmission assembly (1) for a motor vehicle with a gearbox (53) comprising a clutch (9), a clutch release device (3), a reversible rotary electrical machine (4) provided with a rotor (5) with a central opening, an intermediate shaft (6) between the clutch and the rotor (5) of the electrical machine (4), said intermediate shaft (6) bearing the release device (3) at the front, and penetrating in the central opening in the rotor (5), wherein it comprises a dry friction clutch (9) provided with a reaction plate, and in that it comprises, at the front, a double damping flywheel (7) which is configured to be secured on a crankshaft of a thermal engine (52) of the vehicle, and to form the reaction plate of the dry friction clutch (9), and at the rear, it comprises a torsion damper (8) which is configured to be connected in rotation to an input shaft (54) of the gearbox (53), and in that the rotor (5) of the electrical machine (4) is secured on the torsion damper (8). ### Claim 2 (depends on 1) Assembly according to claim 1, characterized in that it comprises a hybrid module (2) comprising the release device (3), the electrical machine (4) and the torsion damper (8). ### Claim 3 (depends on 2) Assembly according to claim 2, characterized in that the intermediate shaft (6) extends overhanging at the front of the module (2). ### Claim 4 (depends on 2) Assembly according to claim 2, characterized in that the hybrid module (2) comprises a support (10) comprising first securing means (13) to be secured on a housing of the gearbox (53), and second securing means (16) to be secured on a housing of the thermal engine (52), and in that, in its interior between the first and second securing means (13, 16), the support (10) bears a stator (11) of the electrical machine (5). ### Claim 5 (depends on 4) Assembly according to claim 4, characterized in that the support (10) comprises an inner separation flange (27) between the electrical machine (4) and the friction clutch (9), and in that the flange (27) has at its inner end an axial sleeve (28) which penetrates in the interior of the rotor (5) of the electrical machine (4) and through which the intermediate shaft (6) passes. ### Claim 6 (depends on 5) Assembly according to claim 5, characterized in that the sleeve (28) has a base (29) which is perforated centrally for the passage of the shaft (6). ### Claim 7 (depends on 6) Assembly according to claim 6, characterized in that the release device (3) is controlled hydraulically, and comprises a body (40) supported on the base (29) and a stop (35) for action on the friction clutch (9). ### Claim 8 (depends on 4) Assembly according to claim 4, characterized in that the support (10) bears a magnetic stopper (59) at the rear of an interconnector (22), in order to receive metal particles derived from the torsion damper. ### Claim 9 (depends on 4) Assembly according to claim 4, characterized in that an annular form is arranged in the support in order to form a hydraulic circuit (55). ### Claim 10 (depends on 4) Assembly according to claim 4, characterized in that an opening (1702) is arranged in the support (10) in order to permit the passage of the air. ### Claim 11 (depends on 5) Assembly according to claim 5, characterized in that it comprises a ring (37) for retention of the release device (3) which penetrates in the sleeve (28) and is provided with at least one lug (38) for securing on the flange (27). ### Claim 12 (depends on 5) Assembly according to claim 5, characterized in that fins (1703) are provided in a portion (286) of the sleeve (28). ### Claim 13 (depends on 1) Assembly according to claim 1, characterized in that it comprises a rotor support hub (48) which is secured at the rear end of the intermediate shaft (6) on the torsion damper (8). ### Claim 14 (depends on 13) Assembly according to claim 13, characterized in that the rotor support hub (48) comprises an inner rim (49) with globally transverse orientation for its securing on the rear end of the intermediate shaft (6). ### Claim 15 (depends on 13) Assembly according to claim 13, characterized in that the intermediate shaft (6) has at its rear end a centring support surface (50) for the inner rim of the hub and an axial stop (51) for the inner rim (49). ### Claim 16 (depends on 15) Assembly according to claim 15, characterized in that the axial stop (51) and the inner rim (49) are perforated for the passage of units for securing of the inner rim (49) on the intermediate shaft (6). ### Claim 17 (depends on 13) Assembly according to claim 13, characterized in that the torsion damper (8) comprises at the front a first guiding washer (83) and at the rear a second guiding washer (82) which are integral with one another, in that the first and second guiding washers (82, 83) are disposed on both sides of a hub flange (81) which is configured to be connected to an output hub (84) integral in rotation with the input shaft (54) of the gearbox (53), and in that the first guiding washer (83) is secured at its inner periphery on the inner rim (49) of the rotor (5) hub (48). ### Claim 18 (depends on 13) Assembly according to claim 13, characterized in that the rotor (5) hub (48) is prolonged at the rear by a flange (63). ### Claim 19 (depends on 18) Assembly according to claim 18, characterized in that an opening (1701) is arranged in the flange (63) in order to permit the passage of the air. ### Claim 20 (depends on 1) Assembly according to claim 1, characterized in that the double damping flywheel (7) comprises primary and secondary engine flywheel units which are substantially coaxial, mobile in rotation relative to one another, and coupled by means of first and second damping means which are arranged in series by means of a connection flange.