Abstract: A system for control of a polyphase rotary electrical machine includes a stator provided with a plurality of phases, a synchronous rectifier bridge with a plurality of branches, each associated with a phase, each branch comprising a high transistor and a low transistor, a circuit for control of the high transistor, which can control a state of the said high transistor according to a difference between the positive potential and a reference voltage relative to the phase, a circuit for control of the low transistor, which can control a state of the said low transistor according to a difference between the phase voltage and a reference voltage relative to the negative potential, and, for each phase, a first protection device which is configured to permit a command for the low transistor to go to the switched-on state only if the phase voltage is lower than a threshold voltage.

Abstract: The invention relates mainly to a rotary electrical machine for a motor vehicle, comprising: a heat dissipater (65); two power modules (50) integrated in the heat dissipater (65), each comprising rectifier elements (53) which form three rectifier bridge arms (52), connection terminals (58) associated with the rectifier bridge arms (52), and a control unit which can control the rectifier bridge arms; and a connector (61) which establishes electrical connections, in particular between the terminals (58) for connection of the power modules (50) and the phase outputs of the rotary electrical machine.

Abstract: The invention mainly relates to a rotating electrical machine (10), in particular for a motor vehicle, comprising: —a heat sink (58) having at least one receptacle, —an electric module positioned in the receptacle and comprising at least one connection terminal, —a connector (55) comprising at least one track (54) electrically connected to the connection terminal and a receptacle (84) for receiving a connecting means, in particular a head (83) of a screw (74), ensuring the mechanical and electrical connection between the track (54) of the connector (55) and the heat sink (58), and —an anti-loopback air flow element (93) inserted between a bearing (18) of the rotating electrical machine (10) and the connector (55), characterised in that the anti-loopback air flow element (93) comprises at least one sealing plug (101) for the receptacle (84) for the connecting means.

Abstract: An electronic assembly (10) for an electrical rotating machine. The electronic assembly comprises a plastic overmoulded casing component (100) comprising housings (101) for receiving power modules (200), a power-conducting part overmoulded in the casing component and comprising a plurality of ground and phase traces (103a, 103b. 102), assembly openings (104?, 104a, 104) for receiving means (114) for mounting each power module on the casing component, the power modules comprising a conductive support whereon power switches (2020) and signal components (2030) are mounted, the conductive support (2010) comprising a power connector (2011) connected to the power-conducting part of the casing component and at least two phase connectors (2012a, 2012b) connected to the phase traces (103a, 103b) of the casing component, and a lower ground plane (300) suitable for receiving the casing component and for being mounted on a dissipation unit of the electrical rotating machine.

Abstract: The invention relates mainly to a rotary electrical machine for a motor vehicle, comprising: a heat dissipater (65); two power modules (50) integrated in the heat dissipater (65), each comprising rectifier elements (53) which form three rectifier bridge arms (52), connection terminals (58) associated with the rectifier bridge arms (52), and a control unit which can control the rectifier bridge arms; and a connector (61) which establishes electrical connections, in particular between the terminals (58) for connection of the power modules (50) and the phase outputs of the rotary electrical machine.

Abstract: An electronic assembly (10) for an electrical rotating machine. The electronic assembly comprises a plastic overmoulded casing component (100) comprising housings (100 for receiving power modules (200), a power-conducting part overmoulded in the casing component and comprising a plurality of ground and phase traces (103a, 103b. 102), assembly openings (104?, 104a, 104) for receiving means (114) for mounting each power module on the casing component, the power modules comprising a conductive support whereon power switches (2020) and signal components (2030) are mounted, the conductive support (2010) comprising a power connector (2011) connected to the power-conducting part of the casing component and at least two phase connectors (2012a, 2012b) connected to the phase traces (103a, 10b) of the casing component, and a lower ground plane (300) suitable for receiving the casing component and for being mounted on a dissipation unit of the electrical rotating machine.

Abstract: A built-in equipment for a micro-hybrid device for an automotive vehicle, and to a micro-hybrid device comprising the same. The built-in equipment for a micro-hybrid device for an automotive vehicle of the present invention can be electrically connected to operational components of the micro-hybrid device and comprises a pack of super-capacitors provided with voltage balancing means and electronic circuits. The equipment comprises a housing containing a first compartment for receiving the pack of super-capacitors, and a second for receiving the electronic circuits and the voltage balancing means.

Abstract: A method for braking the thermal engine of an automobile using a multiple-phase rotary electric machine (1) connected to the thermal engine and including a stator and a rotor (4) having at least one excitation winding (41). A shortcut of at least one phase of the multiple-phase rotary machine is included during the stop phase of the thermal engine. The multiple-phase rotary electric machine is capable of braking the thermal engine of an automobile during the stop phase thereof due to the fact that a shortcut is induced, during the stop phase of the thermal engine, of at least one of the phases thereof.

Abstract: The micro-hybrid system for a transport vehicle comprises a rotary electric machine suitable for being coupled mechanically to an engine of the vehicle, an AC-to-DC converter, a DC-to-DC converter, first and second electrical energy reservoirs suitable for storing an electrical energy produced by the rotary machine and for returning the electrical energy to consumer devices equipping the vehicle, and a controller for controlling the operation of the micro-hybrid system. The controller comprises piloting strategies module suitable for autonomously piloting the operating modes of the micro-hybrid system according to a plurality of strategies depending on information provided to said piloting means regarding an internal state of the micro-hybrid system and of a state of the vehicle.

Abstract: A micro-hybrid system (27) is connected to an on-board electrical network (V+) of a first heat engine (28) of a vehicle, whereby the first heat engine having a first cubic capacity which is greater than or equal to a first predetermined value. The system (27) comprises a number equal to two or more of identical starter-alternator devices (1) which are mechanically coupled to the first heat engine (28). The torque and power characteristics of each of the starter-alternator devices (1, 16), while not being adapted to the first heat engine (28), are adapted to a second heat engine having a second cubic capacity which is less than or equal to a second predetermined value equal to a fraction of the first predetermined value. The system is adapted to an application to large heat engines and allows a certain degree of standardization of starter-alternator devices.

Abstract: A triphase rotating electric machine includes three coils evenly distributed around a rotational axes of the machine, and at least one first sensor, capable of generating a periodic signal to represent the position of the machine around the axle and a control circuit capable of controlling, when in the first mode, the conduction of a switch (KUH), linked to at least one of the three coils based on the periodic signal generated by the first sensor (U), such that the conduction phases of the switch (KUH) have a duration in the order of half the signal period (U). The control circuit is capable of controlling switch (KUH), based on a second mode in which the conduction phases of the switch (KUH) have a duration in the order of a third of the signal period (U).

Abstract: A device for controlling a polyphase rotating machine comprising a stator, a rotor, and sensors, the device being capable of receiving at least one first sensing signal (V, W, U) representing a position of the rotor relative to the stator and outputted from a first sensor (16; 18; 14), and a second sensing signal representing the position and phase-shifted relative to the first signal (V, W, U). The second signal is outputted from a second sensor. The control device comprises: means (K, R) for combining the first and the second sensing signals (U, V, W) into a combined signal (Ku; Kv; Kw) including at least one controlled switching signal with a variable cyclic ratio. The combined signal (Ku; Kv; Kw) is based on the cyclic ratio and enables the machine to be controlled.

Abstract: A method for managing a power supply system with a variable voltage comprising the following steps: according to an instantaneous rotational speed of a rotating electrical machine, a power supply system output voltage with a variable voltage is set to an optimum output voltage between first and second service voltages in such a way as to maximize the electric power delivered by the electrical machine to an energy storage system; when the instantaneous rotational speed is slower than the nominal rotational speed, the output voltage is set to a first value which is substantially equal to the first service voltage in such a way as to maximize the yield of the transfer of energy from the electrical machine to a load; and when the instantaneous rotational speed is faster than the nominal rotational speed, the output voltage (U) is set to a second value substantially equal to the second service voltage in such a way as to maximize the yield of the transfer of energy from the electrical machine towards the load.

Abstract: A device for controlling a polyphase rotating machine, the machine comprising a stator, a rotor, and sensors, the device being capable of receiving: at least one first sensing signal (U; V; W) representing a position of the rotor relative to the stator and output by a first sensor; and a second sensing signal (V; W; U) representing the position and phase-shifted relative to the first signal and output by a second sensor. The control device comprises: means (K, R) for combining the first and second sensing signals into a combined signal, the means including at least one controlled switching element capable adopting at least in two states, the combined signal being based on a state of the first element and enabling the machine to be controlled.

Abstract: A method for controlling a reversible polyphase rotating electrical machine, wherein at least one coil circuit is supplied through a bridge of switches, including the following steps: controlling (P1) the bridge to deliver to the coil circuit a periodic voltage with a phase shift (d) relative to an electromotive force induced in the coil circuit, such that an operating torque is generated, the phase shift having initially a first value (d0); controlling (P2) the bridge to deliver to the coil circuit a periodic voltage with the phase shift (d) producing a torque ranging between the operating torque and the opposite of the operating torque, the phase shift taking on a plurality of values upon the control; flipping (T2) the bridge in rectifying mode.

Abstract: A machine comprising a rotor, a stator (12), a control bridge (10) with controlled switches, and a control device (20, 30) supplying control signals (C) to the control bridge (10), wherein the control device comprises means (30) for applying to at least one switch of the control bridge a control signal with a phase-lead relative to a signal representing the position of the rotor relative to the stator. According to the invention, the applying means comprise means (30) for adjusting the phase lead (d) from a plurality of values for a given rotational speed of the rotor.

Abstract: The micro-hybrid system for a transport vehicle comprises a rotary electric machine (10) suitable for being coupled mechanically to an engine (5) of the vehicle, an AC-to-DC converter (11), a DC-to-DC converter (13), first (12) and second (2) electrical energy reservoirs suitable for storing an electrical energy produced by the rotary machine and for restoring the latter for consumer devices equipping the vehicle, and control means (14) for controlling the operation of the micro-hybrid system. In accordance with the invention, the control means (14) comprise piloting means (140) suitable for autonomously piloting the operating modes of the micro-hybrid system according to a plurality of strategies according to at least their own knowledge of an internal state of the micro-hybrid system and of a state of the vehicle.

Abstract: A method for braking the thermal engine of an automobile using a multiple-phase rotary electric machine (1) connected to the thermal engine and including a stator and a rotor (4) having at least one excitation winding (41). A shortcut of at least one phase of the multiple-phase rotary machine is included during the stop phase of the thermal engine. The multiple-phase rotary electric machine is capable of braking the thermal engine of an automobile during the stop phase thereof due to the fact that a shortcut is induced, during the stop phase of the thermal engine, of at least one of the phases thereof.

Abstract: A triphase rotating electric machine includes three coils evenly distributed around a rotational axes of the machine, and at least one first sensor, capable of generating a periodic signal to represent the position of the machine around the axle and a control circuit capable of controlling, when in the first mode, the conduction of a switch (KUH), linked to at least one of the three coils based on the periodic signal generated by the first sensor (U), such that the conduction phases of the switch (KUH) have a duration in the order of half the signal period (U). The control circuit is capable of controlling the switch (KUH), based on a second mode in which the conduction phases of the switch (KUH) have a duration in the order of a third of the signal period (U).

Abstract: A device for controlling a polyphase rotating machine comprising a stator, a rotor, and sensors, the device being capable of receiving at least one first sensing signal (V, W, U) representing a position of the rotor relative to the stator and outputted from a first sensor (16; 18; 14), and a second sensing signal representing the position and phase-shifted relative to the first signal (V, W, U). The second signal is outputted from a second sensor. The control device comprises: means (K, R) for combining the first and the second sensing signals (U, V, W) into a combined signal (Ku; Kv; Kw) including at least one controlled switching signal with a variable cyclic ratio. The combined signal (Ku; Kv; Kw) is based on the cyclic ratio and enables the machine to be controlled.