Abstract: The invention relates to a rotor assembly which is mounted such as to rotate around an axis of rotation (X-X?) and which comprises two magnet wheels with claws (10). The aforementioned magnet wheels are separated by an axial space and are disposed opposite one another. Moreover, each wheel (10) comprises an end shield (11) which is essentially perpendicular to the aforementioned axis (X-X?), and claws (12) extended axially from said end shield (11) towards the other wheel (10). The claws (12) of one wheel (10) are solidly connected to the end shield (11) by respective bases (121) which are separated from one another by peripheral spaces (13). The inventive assembly comprises at least one fan (30) which is positioned on an axial face of the end shield (11) of one of the wheels (10) opposite the other wheel (10), such that the fan (30) axially seals at least part of one of the peripheral spaces (13).

Abstract: A hybrid drive of a compressor (3) for an air conditioning unit in an automotive vehicle with a thermal engine, which is implemented by a coupling assembly including a rotating electric machine (2) adapted to be mechanically coupled to the thermal engine and to the compressor. First disengageable coupling assembly (6) are provided for connecting the rotating electric machine to the thermal engine, and second coupling assembly (8) are provided for coupling the rotating electric machine to the compressor.

Abstract: The covering element has a visible face and an invisible face opposite the visible face. It includes a weakening line which is formed on the invisible face and defines a gate zone which is to open under the pressure of the deployment of the airbag when the motor vehicle is subjected to an impact. The weakening line includes a groove which has a given total length and is delimited by a bottom and at least one transverse rib which projects relative to the bottom and closes the groove at least partially. The covering element has a thickness of material between the visible face and the bottom which is between predetermined minimum and maximum limits over most of the total length of the groove. The groove includes at least one zone of lesser strength in which the thickness of material between the visible face and the bottom is less than the minimum limit.

Abstract: A method for managing a torque applied to an output shaft of a combustion engine, the combustion engine including combustion chambers, in each of which there is mounted a piston connected to the output shaft in order to apply a torque to it, the output shaft being connected to a rotary machine associated with a management member. The method involves detecting conditions of deactivation of one combustion chamber and controlling the rotary machine so as to apply to the output shaft, prior to the deactivation of one combustion chamber, a compensating torque which tends to cause a resultant torque applied to the output shaft to tend towards a deactivation torque applied by the combustion engine to the output shaft after deactivation of the combustion chamber.

Abstract: A method for controlling, during temporary stoppage, a four-stroke combustion engine including a block delimiting cylinders which define combustion chambers equipped with pistons into which opens an intake pipe and an exhaust pipe, both provided with valves that can move between open and closed positions. The method involves detecting conditions of a temporary stoppage of the engine and commanding the exhaust valves to be kept in the closed position once the engine has gone through an intake phase during the last engine cycle prior to the stoppage.

Abstract: The invention concerns a ventilation system for a rotary electrical machine of the type comprising a rotor mounted so as to rotate in a stator and a device for cooling by forced flow of a cooling fluid, such as air, provided with at least one fan fixed to the rotor and an independent fan disposed so as to be decisive for cooling at relatively low speeds of rotation of the rotor.

Abstract: A trim element (1) of the invention comprises: a first wall (2) enabling the passage of light with an outer surface (3) intended to be visible from the passenger compartment (4) of the motor vehicle; a second wall (8) defining a space (9) with the first wall (2) and one surface (7) of which is capable of reflecting light rays; and a luminous element (6) positioned inside the space (9) so as to backlight the first wall (2). The luminous element (6) sends a beam of light rays (L) to the second wall (8). The surface (7) diffusely reflects light rays. An inner surface (11) of the first wall (2) has light-reflecting properties such that the incident light rays on said inner surface (11) are partially reflected to the second wall (8) and partially emitted across the first wall (2).

Abstract: The covering element has a visible face and an invisible face opposite the visible face. It includes a weakening line which is formed on the invisible face and defines a gate zone which is to open under the pressure of the deployment of the airbag when the motor vehicle is subjected to an impact. The weakening line includes a groove which has a given total length and is delimited by a bottom and at least one transverse rib which projects relative to the bottom and closes the groove at least partially. The covering element has a thickness of material between the visible face and the bottom which is between predetermined minimum and maximum limits over most of the total length of the groove. The groove includes at least one zone of lesser strength in which the thickness of material between the visible face and the bottom is less than the minimum limit.

Abstract: A heat pipe device (6) for cooling a voltage regulator (2) of a rotating electric machine. The heat pipe device (6) comprises an evaporating part (7) situated respectively in a hot zone and connected to the voltage regulator (2) of the machine, and condensation part situated in a cold zone. The heat pipe device (6) is suitable for an alternator or an alternator-starter. The heat pipe is provided to discharge the heat from the hot zone to the cold zone.

Abstract: A hybrid drive of a compressor (3) for an air conditioning unit in an automotive vehicle with a thermal engine, which is implemented by a coupling assembly including a rotating electric machine (2) adapted to be mechanically coupled to the thermal engine and to the compressor. First disengageable coupling assembly (6) are provided for connecting the rotating electric machine to the thermal engine, and second coupling assembly (8) are provided for coupling the rotating electric machine to the compressor.

Abstract: A cooling device comprising a heat pipe (6) which is provided with an electrically-isolating part (15) between the evaporating (8) and condensing (7) parts thereof, such that the hot and cold areas are isolated electrically from one another. The evaporating part (7) of the heat pipe (6, 60, 61) is connected to a voltage regulator (2) or to a current rectifier belonging to a rotating electric machine. The invention is suitable for an alternator or an alternator-starter.

Abstract: A method and a device for starting a diesel engine with no heater plugs, comprising pistons and cylinders defining combustion chambers into which gases intended to participate in combustion are admitted, in which method a strategy is adopted whereby the gases present in the chambers are heated up in such a way as to raise them to a minimum temperature within the entire volume defined by the chambers when the pistons are in the position of maximum compression or close to that position. The gases are heated by compressing the air in the cylinders using an electrical machine, or using a heating system in the intake.

Abstract: A method for controlling, during temporary stoppage, a four-stroke combustion engine including a block delimiting cylinders which define combustion chambers equipped with pistons into which opens an intake pipe and an exhaust pipe, both provided with valves that can move between open and closed positions. The method involves detecting conditions of a temporary stoppage of the engine and commanding the exhaust valves to be kept in the closed position once the engine has gone through an intake phase during the last engine cycle prior to the stoppage.

Abstract: A method for managing a torque applied to an output shaft of a combustion engine, the combustion engine including combustion chambers, in each of which there is mounted a piston connected to the output shaft in order to apply a torque to it, the output shaft being connected to a rotary machine associated with a management member. The method involves detecting conditions of deactivation of one combustion chamber and controlling the rotary machine so as to apply to the output shaft, prior to the deactivation of one combustion chamber, a compensating torque which tends to cause a resultant torque applied to the output shaft to tend towards a deactivation torque applied by the combustion engine to the output shaft after deactivation of the combustion chamber.

Abstract: A deflector for an electromagnetic retarder including a rotary shaft with a fan for circulating a cooling gas to the induction coils which are intended, upon command, to generate Foucault currents in a stator surrounding the rotary shaft and the induction coils. The inventive deflector (1) includes a body (2) which is provided with at least one return face (3), known as the radial return face, which is intended to release the gas radially from the retarder, said body (2) being shaped such that the deflector (1) can be disposed non-rotatably and coaxially in relation to the shaft of the retarder.

Abstract: The invention relates to a heat pipe device (6) for cooling a voltage regulator (2) of a rotating electric machine, comprising an evaporating part (7) which is connected to the voltage regulator (2) of the machine. The invention is suitable for an alternator or an alternator-starter.

Abstract: A power supply device for a motor vehicle, comprising a housing containing at least one unit for storing electrical energy and cooling means of the unit consisting of at least two cooling devices which can be selectively controlled by control means for regulating the quantity of heat to be dissipated by the cooling means.

Abstract: The invention concerns a system for driving electrical appliances and accessories via a generating function associated with a heat engine comprising a crankshaft, wherein all the consuming appliances (31-34) usually driven by a belt passing on a pulley fixed to the crankshaft are electrically powered and connected to an electric power system including one or more electric generators (11) mechanically driven by the heat engine.

Abstract: The invention relates to a rotor assembly which is mounted such as to rotate around an axis of rotation (X-X?) and which comprises two magnet wheels with claws (10). The aforementioned magnet wheels are separated by an axial space and are disposed opposite one another. Moreover, each wheel (10) comprises an end shield (11) which is essentially perpendicular to the aforementioned axis (X-X?), and claws (12) extended axially from said end shield (11) towards the other wheel (10). The claws (12) of one wheel (10) are solidly connected to the end shield (11) by respective bases (121) which are separated from one another by peripheral spaces (13). The inventive assembly comprises at least one fan (30) which is positioned on an axial face of the end shield (11) of one of the wheels (10) opposite the other wheel (10), such that the fan (30) axially seals at least part of one of the peripheral spaces (13).

Abstract: A cooling device comprising a heat pipe (6) which is provided with an electrically-isolating part (15) between the evaporating (8) and condensing (7) parts thereof, such that the hot and cold areas are isolated electrically from one another. The evaporating part (7) of the heat pipe (6, 60, 61) is connected to a voltage regulator (2) or to a current rectifier belonging to a rotating electric machine. The invention is suitable for an alternator or an alternator-starter.