Abstract: A method for starting a combustion engine of a hybrid motor vehicle drivetrain, in which there is a connection clutch interposed between the combustion engine and the electric motor for transmitting a torque between the combustion engine and the electric motor, and a main clutch interposed between the gearbox and the electric motor. From an initial state in which the electric motor generates a drive torque and the combustion engine is stopped, the main clutch is kept in a closed state so as to transmit the torque generated by the electric motor to the gearbox, and the connection clutch is controlled so as to transmit a drive torque between the electric motor and the combustion engine and perform a torque-limiting function between the combustion engine and the electric motor in order to limit the transmission of acyclisms between the combustion engine and the electric motor.

Abstract: A propulsion system for an electric vehicle including a first electric propulsion motor comprising a stator and a rotor having a first output shaft able to rotate about a first axis, a second electric propulsion motor comprising a stator and a rotor having a second output shaft able to rotate about a second axis, a first reducer able to receive the torque supplied by the first electric motor, via a first selective or non-selective coupling system, this first reducer having a first reduction ratio, a second reducer able to receive the torque supplied by the second electric motor, via a second selective or non-selective coupling system, this second reducer having a second reduction ratio, a third coupling system, which may or may not be selective, for coupling the first output shaft and the second output shaft, and the first axis and the second axis not being coincident.

Abstract: A propulsion system for an electric vehicle includes a first electric propulsion motor including a stator and a rotor that has a first and second output shafts that are axially opposed and define first and second torque outputs of the first electric motor. The system also includes a second electric propulsion motor including a stator and a rotor having a second output shaft with a torque output. Further, the system includes a first reduction gearbox to receive the torque supplied on the first torque output of the first electric motor where appropriate via a first selective or non-selective coupling system, a second reduction gearbox to receive the torque supplied by the second electric motor where appropriate via a second selective or non-selective coupling system, and a third coupling system for coupling the second torque output of the first electric motor to the torque output of the second electric motor.

Abstract: A vibration damper is provided with two rotating members, i.e. an oscillating inertial flywheel and a member to be damped driven by a torque following a torque path between a driving member and a driven member, wherein the inertial flywheel is connected kinematically to the torque path between the driving member and the driven member solely by way of the member to be damped. Connecting modules between the two rotating members permit a relative angular displacement ? between the two rotating members on the two sides of a reference relative angular position. Each connecting module is provided with a roller associated with a first of the two rotating members and a cam track connected resiliently by a resilient element to a second of the two rotating members.

Abstract: A progressivity device for a friction clutch disc includes a support flange, having a central axis of rotation, in which an annular central part is designed to cooperate with a torsional vibration damper, and an external part bears progressivity blades and friction pads attached to the progressivity blades. The progressivity blades extend circumferentially over at least one of the faces of the support flange. The progressivity blade include one end fixed to the external part, another free end and folds delimiting a support region for the friction pad.

Abstract: Clutch mechanism (10) configured to be driven in rotation about an axis (O) and comprising two assemblies (1, 2), each assembly (1, 2) comprising at least: an outer disk carrier (106, 206) externally delimiting a cavity (C1, C2), a clutch (100, 200) comprising a stack of coupling disks (101, 201) and friction disks (102, 202), the stack being housed in the cavity (C1, C2) and configured to be driven in rotation about the axis (O), a reaction member (103, 203) of the outer disk carrier (106, 206) configured to enable compression of the coupling disks (101, 201) against the friction disks (102, 202) in a clutch engaged position of the corresponding clutch (100, 200), the clutch mechanism (10) comprising at least one device (3) for assembling the two assemblies (1, 2) to one another.

Abstract: The invention concerns a hydraulic pump (6, 7) for a clutch mechanism (1) of a vehicle transmission, the hydraulic pump (6, 7) comprising a body (60, 70) in which there are formed a chamber (61, 71), an inlet opening (62, 72) through which a hydraulic fluid can enter the chamber (61, 71), and an outlet opening (63, 73) through which the hydraulic fluid can leave the chamber (61, 71), the chamber (61, 71) receiving at least one hydraulic wheel of the hydraulic pump (6, 7), the inlet opening (62, 72) and the outlet opening (63, 73) each opening into the chamber (61, 71) of the body (60, 70), the body (60, 70) of the hydraulic pump (6, 7) being delimited by an outer edge (80) on which at least one peripheral groove (81, 82) is formed, configured to receive a gasket (83, 84), the gasket (83, 84) being intended to provide contact sealing between the body (60, 70) of the hydraulic pump (6, 7) and a hydraulic connection interface (4) of the clutch mechanism (1).

Abstract: A torsion damping device for a vehicle transmission including a first rotary element and a second rotary element which are able to move in rotation relative to one another about an axis against the action of a spring acting circumferentially between these, a seat being positioned on one end of the spring, this seat comprising a first axial guidance arrangement providing axial guidance between the first rotary element and the seat, and a second axial guidance arrangement providing axial guidance between the second rotary element and the seat.

Abstract: A torque transmission device for a vehicle includes a torque input element coupled to a crankshaft of a combustion engine, a first torque output element coupled to a first input shaft of a gearbox, a rotating electric machine including a stator and a rotor arranged in the direction of the transmission of torque, between the input element and the first output element, a rotor support radially supporting the rotor of the rotating electric machine, the rotor support selectively connected to the input element by an input clutch, a fixed distributor fastened to the gearbox and supporting the rotor support, a fixed wall including a first radial end fastened to the gearbox, and a second radial end connected to the torque input element, a first rolling member arranged between the rotor support and the fixed distributor, and a second rolling member arranged between the rotor support and the fixed wall.

Abstract: An electric drivetrain including an electric machine and at least one output pinion intended to be connected to an axle differential, and at least one speed reduction device including a first gear train and a second gear train intended to drive the output pinion in rotation in a first rotational direction or a second rotational direction.

Abstract: A pendulum damping device including a support that rotates about an axis, at least one pendulum body and at least one rolling member guiding the movement of the pendulum body relative to the support, the rolling member engaging with at least one rolling track rigidly connected to the support and with at least one rolling track rigidly connected to the pendulum body. The rolling member includes a first part defining a first axial end, a second part defining a second axial end, and a resilient element arranged in the rolling member so as to axially separate these two parts so that the rolling member exerts an axial clamping force on one of the pendulum body and the support during the movement of the pendulum body relative to the support.

Abstract: A method of making a turbine assembly for a hydrokinetic torque converter includes providing a first turbine component including a polymeric first turbine shell element and first turbine blades connected to the first turbine shell element, providing a second turbine component including a second turbine shell element and second turbine blades connected to the second turbine shell element, and connecting the first turbine shell element to the second turbine shell element to collectively provide a turbine shell of the turbine assembly and fixedly secure the first and second turbine components to one another in a coaxial relationship about the rotational axis. The connecting involves welding and/or adhesive bonding the first turbine shell element to the second turbine shell element. A turbine assembly, a hydrokinetic torque converter, and a method of making a hydrokinetic torque converter are also provided.

Abstract: A device for damping torsional oscillations, including: a pendulum-type torsional oscillation damper, a supplementary torsional oscillation damper including an input element, an output element, wherein both are configured to rotate around one axis rotation, and at least one mechanical energy accumulator device disposed between the input and output elements, a torque limiter, including at least one friction coating fixed on a disk, configured to be displaced around the axis. The disk is connected to rotate with the input element of the supplementary torsional oscillation damper and the friction coating is fixed to the disk of the torque limiter by an adhesively bonded surface-to-surface joint.

Abstract: A pendulum damping device including a mounting to rotate about an axis; at least one pendulum body that includes first and second pendulum masses axially spaced relative to each other and movable relative to the mounting, the first pendulum mass being axially placed on a first side of the mounting and the second pendulum mass being axially placed on a second side of the mounting, and at least one member to connect the first and second pendulum masses and couple the masses; and at least one rolling member that guides the movement of the pendulum body relative to the mounting. The rolling member engages with a rolling track secured to the mounting and with a rolling track secured to the pendulum body and defined by the connecting member. The rolling member exerts an axial clamping force on one of the pendulum masses during movement of the one pendulum mass relative to the mounting.

Abstract: A torsional damping device (110) includes a movable torque input element (130, 140), a movable torque output element (150), at least one phasing member (320,340) and at least one group of elastic members (250, 260) mounted between the torque input element and torque output element. The at least one group of elastic members acts against rotation of the torque input element and the torque output element with respect to one another. The elastic members of the at least one group of elastic members are arranged in series by the at least one phasing member (320, 340) so that the elastic members of the at least one group of elastic members deform in phase with one another. The torque input element having at least one stop member (620) limiting rotation of the torque input elememt relative to the output element and relative to the at least one phasing member.

Abstract: A torque transmission assembly including a hydrodynamic torque convener able to be coupled to a crankshaft on the one hand, and able to be coupled to a gearbox input shaft on the other, the torque converter including a primary element and a secondary element which are rotationally mobile about an axis of rotation, and damping means including a transmission member and a bearing element, the transmission member including an elastic leaf rotating as one with the primary element or with the secondary element, and the bearing element being home by the secondary element or by the primary element respectively, the elastic leaf being capable of flexing and of transmitting a rotational torque between the primary element and the secondary clement, the flexing of the elastic leaf being accompanied by a relative rotation between the primary and secondary elements.

Abstract: A torsion damping device for a vehicle transmission line including a first rotating element, a second rotating element, a main damper, a third rotating element and an additional damper, so that: when the angular displacement between the first and second rotating elements is greater than zero and less than said first threshold, the at least one main spring is compressed while the third rotating element is rotated by the first rotating element via the uncompressed additional spring; and when the angular displacement between the first and second rotating elements is greater than said first threshold, the at least one main spring is compressed and the at least one additional spring is compressed in parallel, the compression of the additional spring being accompanied by the relative rotation of the first rotating element and the third rotating element.

Abstract: A torsion damping device for a vehicle drivetrain including a first rotary element, a second rotary element, an elastic device, a friction device comprising an actuating washer mounted to rotate as one with a friction washer and comprising an actuating tab interposed circumferentially between a first end of a spring and the first rotary element so as to allow relative rotation between the actuating washer and the second rotary element when the first end of the spring is compressed by the first rotary element in the direction of a second end of the spring opposite to the first end.

Abstract: A clutch device including a reaction plate, a pressure plate, at least two friction disks coupled to an output component by means of damping device, the damping device including an annular web, guide washers, at least one resilient component mounted between the guide washers and the annular web, a first support rotationally coupled to the friction disks and to the guide washers, at least one of the guide washers and the first support being formed by a single support and guide part.

Abstract: A clutch mechanism that is configured to be driven in rotation about an axis and includes two assemblies, each assembly including at least an outer disc carrier externally delimiting a cavity, a clutch comprising a stack of coupling discs, and friction discs, the stack being housed in the cavity and configured to be driven in rotation about the axis, a reaction member configured to allow compression of the coupling discs against the friction discs in an engaged position of the clutch, the clutch mechanism comprising at least one device for assembling the two assemblies, the clutch mechanism including at least one device for adjusting an axial distance between the two clutches.