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.

Abstract: A winding for an active portion of a rotary electric machine has at least one phase system including a plurality of phases each including a first energizing pin and a second energizing pin each forming a phase input or output. Each energizing pin includes an energizing end that extends out of the slot and each energizing end that forms a phase output being electrically connected to an energizing end that forms a phase input of a different phase, in order to achieve a delta configuration. The winding includes a first set including at least one energizing end forming a phase input and at least one other energizing end forming a phase output, and a second set including at least one energizing end forming a phase input and at least one other energizing end forming a phase output.

Abstract: A stator for a rotary electric machine includes a stator body having an axis (X), and a winding including at least one overhang projecting axially from the stator body and winding ends extending axially beyond the overhang from the stator body. Also included is an interconnector mounted on the overhang of the winding, including an insulating body and at least one track having track ends. At least two winding ends are each assembled with one of the corresponding track ends, and the track ends are symmetrical relative to a plane containing the axis and relative to a plane transverse to the axis.

Abstract: The invention relates to a rotary electric machine, in particular for a motor vehicle, including: a stator (100) comprising a stator body (110) and an electrical coil, said electrical coil including a plurality of phase windings (120) forming a bundle (125) that protrudes from an axial end face of the stator body, each phase winding including an end forming a coil connection point (122); and at least one electrical connection member (150) positioned in continuation of the stator (100) and comprising at least one electrically conductive element (155) which is overmolded with an electrically insulating material (126) and extends radially out of the electrically insulating material to form at least two connection outputs (153, 154) to which the connection points are connected.

Abstract: A method for inserting conductive pins from a transfer device to a body of a wound part in order to form an electrical winding of a wound part of a rotary electric machine. The method includes a preparation step, in which the conductive pins are arranged in the spindle body, and a step of positioning the spindle body relative to the body of the wound part. A guide step arranges a guide device to guide the conductive segments in a circumferential and/or radial direction, and a transfer step inserts conductive segments into the corresponding slots.

Abstract: The invention relates primarily to a rotating electrical machine for a motor vehicle including: —a rotor, and—a stator (11) including a winding (17) having a plurality of phases, each phase comprising a plurality of groups of coils (G1-G4), characterized in that said stator (11) is configured such that currents in the groups of coils (G1-G4) are able to flow selectively: —in one and the same direction so as to maximize a number of poles of the rotating electrical machine, or—in opposite directions so as to minimize a number of poles of the rotating electrical machine.

Abstract: Rotary electric machine for a motor vehicle includes a stator, extending along an axis, the stator including a body and a winding provided with lead-out wires extending axially on either side of the stator body. At least one end shield includes a plate extending transversely and a skirt extending axially from the plate, the plate having an inner face oriented towards a lead-out wire of the winding. The inner face includes a main recess which increases the minimum axial distance separating the lead-out wire from the inner face, the main recess having a bottom extending radially.

Abstract: Electronic control system for electric machine and electric assembly. The electronic system includes an electronic power module for converting a DC current into an AC current, and an electronic control module configured to generate a control signal for the electronic power module. The electronic control module includes a first electronic sub-assembly including at least a first trace and at least one electronic control component, the at least one electronic control component being electrically connected to the at least one first trace. A second electronic sub-assembly, separate from the first electronic sub-assembly, includes an electronic control device for generating the control signal and/or an electronic measuring device for measuring an operating parameter of the electronic power module. The second electronic sub-assembly being connected to the first electronic sub-assembly by a first control pin. An electric assembly includes the electronic system and a rotating electric machine.

Abstract: A bearing for a rotating electric machine. The bearing includes a plastic body and at least one electrical conductor fixed to the plastic body in a non-detachable manner.

Abstract: An assembly for an interconnector of an electric machine includes an interconnector housing having a recess opening and one track per phase. Each track includes a connection end to be connected to a phase output, a gasket mounted on the interconnector housing and including a dividing wall partially closing the connection recess opening, and at least one sealing grommet extending from the dividing wall toward the connection recess opening. The grommet includes a conduit extending toward the connection recess opening, a phase output sealing opening passing through the conduit to lead a phase output into the connection recess opening, and a gaiter extending from the dividing wall to the conduit.

Abstract: A permanent-magnet synchronous rotary electric machine for a self-propelled mobile device includes a stator having slots and a winding including at least three phases. The winding is of the type in which the number of turns N in the stator per phase is equal to the number of conductors in a slot, multiplied by the number P of pole pairs multiplied by the number of slots per pole and per phase, all divided by the number of parallel electrical paths of the conductors in a slot and/or divided by the square root of three if the winding is delta-coupled. The number of turns N per phase in the stator is between 9 and 20.

Abstract: The invention pertains primarily to a rotary electric machine, in particular for a motor vehicle, including: —a stator comprising a body provided with teeth delimiting slots and a winding that is housed in the slots of the stator body; —a rotor (12) comprising a body (21) and poles (22) that are formed by permanent magnets (23), characterized in that —two successive polar angles, each corresponding to a circumferential extent of a pole (22), or —two successive dual polar angles (A0-A4), each corresponding to a circumferential extent of two adjacent poles (22), —exhibit an angular difference in relation to one another that is dependent on an angular offset parameter (6) related to a stator pitch.

Abstract: A device for controlling an inverter/rectifier capable of being electrically connected to the electrical stator winding of a rotary electric machine also including a rotor, in particular for a vehicle. The device includes at least one temperature sensor, capable of providing a measurement representative of the temperature of the rotor and/or stator of the rotary electric machine, and a temperature estimator module, capable of providing an estimate representative of the temperature of this rotor and/or this stator. A control device generates, in a main mode of operation, setpoints for the inverter/rectifier by using, as a signal representative of the temperature, the measurement provided by the temperature sensor, and the estimate provided by the temperature estimator module, for all or some of the rotation speeds of the rotor.

Abstract: Method for heating a coolant of an electrical traction machine of a motor vehicle, the electrical machine including, in addition to the coolant, a stator including a polyphase winding, the stator being in heat exchange with the coolant, a rotor, and an inverter/rectifier supplying power to the polyphase winding. The inverter/rectifier includes a plurality of switching cells controlled by a control device. The control device of the inverter/rectifier is configured to control the switching cells so as to short-circuit the polyphase winding in predetermined conditions for the purpose of heating the coolant.

Abstract: A control system for a voltage converter includes a first module for measuring a voltage of the DC voltage source, a module for comparing the measured voltage with a first safety threshold, and a second measurement module for measuring a speed of rotation of the rotary electric machine. A control module generates an open-circuit command which is made up of a command to open the first group of switches and a command to open the second group of switches. If a variation over time of the measured voltage of the DC voltage source is less than a first safety variation. If the speed of rotation measured by the second measurement module is less than a first safety speed.

Abstract: Transmitter or receiver resonant circuit for carrying out contactless power transmission via resonant inductive coupling to a receiver or transmitter resonant circuit, comprising a first capacitance and a first winding, the first winding comprising an inductance and a first resistance, the transmitter resonant circuit comprising a second capacitance of value C2? and a second winding, the second winding comprising a second inductance of value L2? and a second resistance of value R2?, the transmitter resonant circuit having a natural angular frequency u>2 such that w2=1/V(L2?×C2?) and a natural frequency f2 such that f2=w2/(2?), characterized in that the value of the second inductance varies in a predetermined manner.

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: 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: 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.