Abstract: An interconnection device for a rotary electric machine provides an electrical connection between a stator and an electronic power-supply and control module. The interconnection device includes an insulating body, connecting members, and a connection terminal. The stator includes coils. The connecting members are arranged on an outer side of the insulating body, and each connecting member includes a body, a connection tongue, and a combined connecting member. The combined connecting member includes a linking lug which electronically connects the coil of the stator to the electronic power-supply and control module. The connection terminal is fixed to the linking lug, and the linking lug is sized to pass through the insulating body, with a free end of the linking lug and a free end of the connection terminal extending from an inner side of the insulating body.

Abstract: An electronic system includes a casing including a first bearing surface, a first busbar attached to the casing and including a first connection end having a first connection surface, and an electronic unit having a second bearing surface and including a second busbar having a second connection end having a second connection surface. The second bearing surface is intended to slide on the first bearing surface when the electronic unit is inserted into the casing. One from among the first bearing surface and the second bearing surface includes a ramp that is inclined relative to the insertion direction for deforming the second busbar so as to bring the second connection surface closer to the first connection surface when the electronic unit is inserted into the casing. An electrical assembly may include such an electronic system and a rotary electric machine.

Abstract: The invention relates to a switch system (1) comprising a power line (2) for supplying a charge from a voltage source (+Vbat), said power line having a main switch (Q1) comprising a first main terminal (D) and a second main terminal (S), between which a main current (Ip) is intended to pass, and a control terminal (G) for selectively placing the main switch (Q1) in a closed, open or semi-closed state, the main switch (Q1) in its semi-closed state being equivalent to a variable resistor controlled by the control terminal and connected between the first and the second main terminal, characterized in that the switch system (1) further comprises a current-limiting device (3) designed to, when the main current (Ip) exceeds a maximum current threshold, decrease a control current (Ig) entering the control terminal (G), so as to cause the main switch (Q1) to transition from the closed state to the semi-closed state, so as to limit the main current.

Abstract: The invention relates to a stator (200) comprising an annular body (210) provided with a plurality of slots (213) and a winding (400) comprising a first series (A) of needles (1) and a second series (B) of needles (1) which are arranged in the slots (213) in a plurality of superimposed layers (C1-C4), each needle (1) comprising a first segment (1A) and a second segment (1B) which are each arranged in different slots (213) and connected by an elbow connector (1C). According to the invention, the first segments (1A) and the second segments (1B) of the first series (A) are respectively arranged in a first layer (C1) and in a second layer (C2) and the first segments (1A) and the second segments (1B) of the second series (B) are respectively arranged in a third layer (C3) and in a fourth layer (C4), the first series (A) being electrically connected to the second series (B).

Abstract: An electronic unit for a voltage converter of a rotating electric machine includes a first busbar including a first plate, a first connection portion projecting from the first plate, on a first side of the first plate. A first connection surface is able to be welded to a second connection surface of a third busbar of a power electronics module by a first laser weld using a first laser beam. A second busbar separate includes a second plate parallel to and located on a second side of the first plate, opposite the first side. The first or second busbar includes a first extension extending in line with the first connection surface, the first extension being able to block the first laser beam. A voltage converter can include the electronic unit, and the electrical assembly can include the voltage converter and a rotating electric machine.

Abstract: A method for discharging an electrical energy storage unit of an electrical circuit includes a first switching system defining a DC/AC voltage converter and interposed between a first electrical sub-circuit, which includes the electrical energy storage unit and the electrical winding of the stator of a rotary electric machine. A second switching system defines a DC/DC voltage converter interposed between the first electrical sub-circuit and a second electrical sub-circuit. At least one electrical consumer forms part of the first electrical sub-circuit. The method includes detecting that the voltage across the terminals of the electrical energy storage unit exceeds a predefined threshold, and controlling at least one of the first switching system, the second switching system and the electrical consumer so as to reduce the voltage across the terminals of the electrical energy storage unit by circulating an additional current in the stator electrical winding, second switching system, or electrical consumer.

Abstract: A rotary electric machine includes a stator including a rotor body and a winding, the winding passing through slots of the rotor body, the slots having an isthmus. A rotor includes a rotor body with cavities and permanent magnets, arranged in the cavities, forming magnetic poles having a central axis (d), a quadrature axis (q) being equidistant from two successive central axes (d). The ratio between the width of the isthmus and the width of the slot being greater than or equal to 0.40 and less than or equal to 0.7, and the ratio between an air gap at the central axis and an air gap at the quadrature axis being greater than or equal to 0.8 and less than or equal to 1.5. An electrical assembly includes such a rotary electric machine and an inverter.

Abstract: A rotor for a rotary electric machine having an axis of rotation includes a body having cavities includes a first end and a second end that are opposite to each other in the direction of the axis of rotation, and magnets received in the cavities. Also provided is a shaft on which the body is mounted, and a first end disk including a first number of first blades that are able to move a fluid, notably air, from a first radially inner position to a second radially outer position. The first end disk prevents the magnets from exiting the cavities via the first end of the body, and a clamping means presses the first end disk directly or indirectly against the first end of the body.

Abstract: Device for determining the angular position of a rotor of a rotary electric machine on the basis of signals delivered by a plurality of position sensors, including a circuit producing a control loop for estimating position of the rotor, delivering at output a signal representative of the position, and a circuit for dynamic normalization by the amplitude of the first harmonic of each signal originating from a position sensor. The circuit receives as input each signal originating from a position sensor, and at least one image of the signal representative of the position of the rotor and is configured to demodulate each signal by the image of the signal, determine, at the end of this demodulation, amplitude of the first harmonic of this signal originating from a position sensor, and normalize each signal by dividing it by the amplitude of the first harmonic of the previously determined signal.

Abstract: The invention relates mainly to a rotary electric machine for a motor vehicle, having: —a casing (11), —an electronic assembly (47) mounted on the casing, —a protective cover (50) positioned around the electronic assembly (47), and —a screw (55) that extends along an axis (X?) and allows the cover (50) to be fastened to the casing (11) and/or electronic assembly (47). The protective cover (50) has at least one opening that forms a fastening zone into which there extends at least one tongue (56) delimiting a central opening (57) for the screw (55) to pass through. The screw (55) has a screw head (70) and a retaining groove (71) such that the tongues (56) are housed in said groove (71).

Abstract: A regulating module for a rotary electric machine having an operating mode in which a battery of the vehicle is disconnected. The regulating module includes a rotor module and a stator module. The rotor module is arranged to generate a first intermediate setpoint (I_RotRef) on the basis of which is generated the first output quantity (V_Rot) for controlling the rotor, said first intermediate setpoint being determined on the basis of a power potential reference signal (Pdc_MaxRef) and of a speed of rotation (W) of the rotor and being independent of a power or of a control torque of the machine. The stator module is arranged to generate a second intermediate setpoint on the basis of which is generated the second output quantity for controlling the stator, said second intermediate setpoint being determined on the basis of the output voltage of the machine.

Abstract: A device for determining the angular position of a rotor of a rotary electric machine on the basis of signals delivered by a plurality of position sensors. The device includes a circuit that applies a control loop to estimate the position of the rotor, and that delivers as output a signal representative of the position of the rotor. Also included is at least one circuit for performing dynamic processing of an odd-order harmonic of a signal resulting from the signals delivered by the position sensors.

Abstract: The invention mainly concerns a rotating electrical machine, in particular for a motor vehicle, comprising a bearing (15) comprising a recess (17) for receiving a shaft bearing guiding the rotation of the shaft, characterised in that the bearing (15) comprises: —a first part (15. I) produced from a first material comprising: —the recess (17) for receiving the shaft bearing, —an interface (51) for mounting a bearing (50) of a pinion (49) external to the rotating electrical machine, and —a second part (15.2) produced from a second material comprising: —a transverse wall (53), and —a skirt (54) extending from the transverse wall (53) at least partially surrounding the stator (11), —the second part (15.2) being overmoulded on the first part (15.1) so as to form a strong bearing (15).

Abstract: The present invention relates to a device (10) for powering a rotating electrical machine (13) of a motor vehicle, comprising: —an amplifier (15) capable of being electrically powered by the first electrical energy storage unit (11) and capable of electrically powering the second electrical energy storage unit (12), characterised in that the amplifier (15) comprises an oscillating circuit (16), the oscillating circuit (16) comprising a capacitance (C) of value C? and an inductive assembly comprising an inductance (L) of value L? and a resistance (R) of value R?, —the oscillating circuit (16) having a specific angular frequency ? such that ?=I/?(L?×C?) and a natural frequency f such that f=?(2?), and in that the value of the inductance (L) is variable in a predetermined manner, in particular so as to increase an electric current, supplied by the first electrical energy storage unit (11) to the oscillating circuit (16), into an amplified current supplied by the oscillating circuit (16) to the second electrical

Abstract: A position measuring device intended for a rotary electric machine. The position measuring device includes a position sensor and a fixing arm projecting with respect to the sensor compartment, wherein the fixing arm has an orifice exhibiting a central axis. The fixing arm has at least one slot made in the periphery of the orifice, the slot exhibiting a depth, in the direction of the central axis as far as a bottom wall, greater than or equal to 2 mm, the slot being configured to receive a tooth of a calibration tool. The invention also relates to the calibration tool cooperating with the position measuring device.

Abstract: A method for controlling a rotating electrical machine of a motor vehicle is disclosed. The motor vehicle includes a thermal drive chain including a heat engine connected to a gearbox by means of a clutch. The electrical machine is integrated in the thermal drive chain or in a drive chain independent of the heat engine. When the clutch is open and the rotating electrical machine operates in motor mode in order to ensure the electrical operation of the motor vehicle, the method includes: generating a setpoint torque corresponding to a desire of the driver to accelerate; determining a pulsed compensation torque for torque oscillations generated by the drive chain; combining the setpoint torque and the previously determined pulsed compensation torque in order to obtain a resulting modified setpoint torque; and applying the resulting modified setpoint torque to the rotating electrical machine.

Abstract: A permanent magnet rotor (100) for an electric motor comprises a bell housing (110) comprising an annular wall (112) and at least one permanent magnet (120) fixed to the annular wall by adhesive means (126) sited between a rear face (124) and the annular wall (112). The rear face (124) of the permanent magnet (120) has a receiving zone (134) accepting said adhesive means (126) and defined by a radius of curvature (R?, R2) which is greater than the radius of curvature (R) of the annular wall (112).

Abstract: A cover for a rotating electric machine includes an axis of rotation (X), the cover being designed to be arranged on an inverter of the machine. The cover includes a skirt extending in a radial direction and forming a perimeter of the cover, the perimeter defining an inner portion of the cover and an open area arranged in the inner portion and comprising at least one axial opening. The open area extends over at least 50% of the inner portion of the cover.

Abstract: A rotor for a rotary electric machine that rotates with respect to an axis of rotation, includes a body and permanent magnets. The body includes a plurality of rotor teeth defining cavities in which the permanent magnets are accommodated, each rotor tooth including at least one holding part. The holding part includes a holding portion having a holding face against which a radially outermost face of the permanent magnet bears, a wing remote from the radially outermost face and in the circumferential continuation of the holding portion.

Abstract: The present disclosure relates to an undervoltage protection circuit for a DC/DC converter of an electrified vehicle. The DC/DC converter generally operates in a first precharge stage, a second precharge stage and a buck mode. The undervoltage protection circuit comprises a threshold value switching unit which is connected with a controller and configured for receiving a control signal from the controller and switching among at least two predetermined undervoltage protection threshold values based on the control signal as received. The undervoltage protection circuit also comprises an undervoltage protection unit configured for outputting a signal indicating whether to activate an undervoltage protection based on a comparison between the switched undervoltage protection threshold value and a sampled voltage value from a high voltage side of the DC/DC converter.