Abstract: A device for damping torsional oscillations, the device including at least one support capable of rotational displacement around an axis, at least one pendulum assembly, including at least one pendulum mass, the pendulum assembly being movable with respect to the support, at least one rolling member, each rolling member interacting with at least one first raceway defined by the support and with at least one second raceway defined by the pendulum assembly, the displacement of the pendulum assembly with respect to the support being guided by at least one of those rolling members, the device further including at least one friction member, carried by the pendulum assembly, for generating hysteresis in all or parts of the relative displacements of the pendulum assembly and the support.

Abstract: The invention relates to a vibration damping system for a motor vehicle transmission, comprising: a support member (1) capable of being driven rotationally around an axis X and having a plurality of outer raceways (16); and a plurality of pendulum flyweights (2) distributed circumferentially around the axis X; each of the pendulum flyweights (2) being mounted oscillatingly with respect to the support member (1) by means of two rolling bodies (12, 13) that interact respectively with one and the other of the two inner raceways (14, 15) of the pendulum flyweight (2) and each interact with one of the outer raceways (16) of the support member (1), the outer raceways (16) being juxtaposed one after another continuously around the axis X, so that the rolling bodies (12, 13) are each capable of passing freely from a first outer raceway (16) to a second outer raceway (16).

Abstract: A vehicle transmission system component including a first subassembly having an input and an output, between which a torque can be transmitted. A second subassembly forms a pendulum-type damping device, and disposed outside the path of the torque transmitted by the first subassembly. The first and the second subassemblies are connected to one another by at least one connecting element capable of being elastically deformed circumferentially.

Abstract: A support (4) for a pendulum damping device (2), comprising: a first portion (7) capable of being connected to a component (1) of a motor vehicle transmission system; and a second portion (8) in which is configured at least one first raceway capable of interacting with a bearing member (21) in order to guide the displacement of a pendulum assembly (5), the first portion (7) and the second portion (8) being rigidly connected to one another, and the first portion (7) being obtained by cutting out the central zone of the second portion (8).

Abstract: The invention relates to a vibration damping system for a motor vehicle transmission, comprising: a support member (1) capable of being driven rotationally around an axis X and having a plurality of outer raceways (16); and a plurality of pendulum flyweights (2) distributed circumferentially around the axis X; each of the pendulum flyweights (2) being mounted oscillatingly with respect to the support member (1) by means of two rolling bodies (12, 13) that interact respectively with one and the other of the two inner raceways (14, 15) of the pendulum flyweight (2) and each interact with one of the outer raceways (16) of the support member (1), the outer raceways (16) being juxtaposed one after another continuously around the axis X, so that the rolling bodies (12, 13) are each capable of passing freely from a first outer raceway (16) to a second outer raceway (16).

Abstract: A method and system for managing a set of traffic lights at an intersection, measuring the Doppler Effect of a signal emitted by a vehicle, where such Doppler Effect being a function of the vehicle movement with respect to said intersection, and deciding as a function of such measure a new state for each traffic light at the intersection so as to facilitate passage of the approaching vehicle.

Abstract: A method and system for managing a set of traffic lights at an intersection, measuring the Doppler Effect of a signal emitted by a vehicle, where such Doppler Effect being a function of the vehicle movement with respect to said intersection, and deciding as a function of such measure a new state for each traffic light at the intersection so as to facilitate passage of the approaching vehicle.

Abstract: A torsion damping device (10) of an automotive temporary coupling system, comprising: a torque input element (12A, 12B) and a torque output element (18); an upstream circumferentially acting elastic member (36A) capable of being loaded by or of loading the input element (12A, 12B); a downstream circumferentially acting elastic member (36B) capable of loading or of being loaded by the output element (18); a radial phase washer (40A, 40B) arranged so that the two elastic members (36A, 36B) are mounted in series; each elastic member (36A, 36B) is received circumferentially between a phasing face (50A, 50B) and an oppositely located radial retention face (52B, 52A) of the phase washer (40A, 40B), the circumferential distance (D) between said faces (50A, 50B, 52B, 52A) being equal at most to the circumferential length of the elastic member at rest.

Abstract: A torsion damping device (10), in particular for a motor vehicle transmission, wherein the damping device (10) comprises at least two pendulum oscillators, a first washer (24A) having at least one first pendulum oscillator (P1) and a second washer (24B) having at least one second pendulum oscillator (P2).

Abstract: A torsion damping device (10), in particular for a motor vehicle transmission, wherein the damping device (10) comprises at least two pendulum oscillators, a first washer (24A) having at least one first pendulum oscillator (P1) and a second washer (24B) having at least one second pendulum oscillator (P2).

Abstract: A torsion damping device (10) of an automotive temporary coupling system, comprising:—a torque input element (12A, 12B) and a torque output element (18);—an upstream circumferentially acting elastic member (36A) capable of being loaded by or of loading the input element (12A, 12B);—a downstream circumferentially acting elastic member (36B) capable of loading or of being loaded by the output element (18);—a radial phase washer (40A, 40B) arranged so that the two elastic members (36A, 36B) are mounted in series; each elastic member (36A, 36B) is received circumferentially between a phasing face (50A, 50B) and an oppositely located radial retention face (52B, 52A) of the phase washer (40A, 40B), the circumferential distance (D) between said faces (50A, 50B, 52B, 52A) being equal at most to the circumferential length of the elastic member at rest.

Abstract: A method and system for managing a set of traffic lights at an intersection, measuring the Doppler Effect of a signal emitted by a vehicle, where such Doppler Effect being a function of the vehicle movement with respect to said intersection, and deciding as a function of such measure a new state for each traffic light at the intersection so as to facilitate passage of the approaching vehicle.

Abstract: A method and system for managing a set of traffic lights at an intersection, measuring the Doppler Effect of a signal emitted by a vehicle, where such Doppler Effect being a function of the vehicle movement with respect to said intersection, and deciding as a function of such measure a new state for each traffic light at the intersection so as to facilitate passage of the approaching vehicle.

Abstract: A double flywheel vibration damper including two coaxial masses free to rotate relative to each other and acting against elastic parts, in which one of the masses, referred to as the first mass, is intended to be fastened to a drive shaft, whereas the other mass, referred to as the second mass, includes a reaction plate assuring rotational connection to a driven shaft, and in which the first mass has a central hub projecting axially and carrying bearing member operating between the second mass and the central hub to enable the second mass to rotate on the first mass, wherein the central hub comprises two aligned coaxial parts, namely a first hub supporting the second mass rotationally via the bearing member fitted on this first hub, and a second hub intended to be fastened to the drive shaft, and wherein the second hub constitutes an axial spacer between the drive shaft and the first hub. The invention is applicable to motor vehicle transmission systems.

Abstract: A double damping flywheel for a motor vehicle, comprising two coaxial masses mounted movably in relation to one another in opposition to a resilient member and a friction member (51-55). A bearing part (60) is provided between the masses, integral with one of the said masses, and for the most part receives the friction means. The bearing part (60) comprises a shoulder engaging (60B) with teeth (62) designed to be edged so as to keep a stack of washers (51-55) in position, each tooth (62) being framed by stabilising lugs (70) allowing the bending operation to be assisted by a matrix of tools.

Abstract: A flywheel comprising a first and second coaxial body (1, 2) movably mounted in relation to one another against an elastic member (8) and friction device (50, 150). The first body (1) is mounted to a drive shaft while the second body (2) includes a reaction plate (21) for a friction clutch. The first body (1) includes a member (60) on its outer periphery, a stiffener, extending close to the second body (2). The friction devices (50, 150) are inserted between the member (60) and the second body (2). The flywheel is adapted for use with a motor vehicle.

Abstract: A polarised manual gearchange lever for a motor vehicle gearbox or the like comprises an upstream part having a knob and carried by a downstream part of the lever, with a slight misalignment between the two parts occurring on manipulation of the knob, together with a force threshold detector which includes electrical sensor means. The force threshold detector comprises a resiliently deformable, or elastic, bar having a head portion, which is fixed with respect to the knob, and a foot portion which is fixed against deflection in a female element that is itself fixed to the downstream part of the lever.