Patents Assigned to Valeo Equipements Electriques Moteur
  • ELECTRIC MOTOR BRUSH HOLDER FOR A MOTOR VEHICLE STARTER
    Publication number: 20180212389
    Abstract: An electric motor brush holder for a motor vehicle starter includes a mounting plate, at least one cage mounted on the mounting plate, where the cage has a housing and at least one opening, at least one brush positioned inside said housing of the cage, and a conductive braid connected to the brush, said conductive braid passing through the opening of the cage, where the conductive braid is supported at least on the portion thereof passing through said opening.
    Type: Application
    Filed: July 19, 2016
    Publication date: July 26, 2018
    Applicant: Valeo Equipements Electriques Moteur
    Inventors: Laurent Odin, Alain Bost, Marie-Ange Nalin
  • Electrical machine with damper to resist vibratory stresses mechanically, and corresponding damper
    Patent number: 10020708
    Abstract: An electrical rotating machine includes a stator (11) provided with teeth (14) around which a group of coils (19) is wound, an annular interconnector (22) resting on a stator lamination stack (11) provided with tongues (36) to which ends (191, 192) of the coils (19) are welded for the formation of phases (U, V, W) of the electrical machine, and a closure flange (74) for closing a housing (70) for receiving the stator (11). The machine also includes at least one damper (83) consisting of a deformable material, configured to be mounted so as to be compressed between the interconnector (22) and the closure flange (74) of the machine. The invention also relates to the corresponding damper.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: July 10, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Michel Le Douarin, Didier Selosse, Michael Hanquez, Hugues Gervais, Svetislav Jugovic, Frederic Palleschi, Mathieu Alapetite
  • Rotor with permanent magnets
    Patent number: 10008891
    Abstract: A rotor with permanent magnets comprising: a stack of laminations forming the core of the rotor having an axis, housings spaced evenly apart on the circumference of the rotor and located in the core of the rotor, some of which receive at least one element in the form of a permanent magnet held radially and axially inside the housing between an inner axial part of the housing and an outer axial part, the inner axial part of the housing comprising two concave portions and a protruding portion extending axially according to the axis, the protruding portion being radially closer to the inner axial face of the magnet than the two concave portions. Moreover, recesses are provided in the core and positioned between the housings on a trajectory successively linking the protruding portions of consecutive housings.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: June 26, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Khadija El Baraka, Svetislav Jugovic, Frederic Palleschi, Jerome Legranger
  • Contractor with micro-solenoid and device for retention of core of micro-solenoid for motor vehicle starter, and corresponding starter
    Patent number: 10002734
    Abstract: The invention essentially relates to a contact-breaker (1) for a heat engine starter, comprising: —a cap (30); and —a micro-solenoid (41) that comprises a coil (42) which is stationary relative to the cap (30), and a core (43) which is translationally movable relative to the cap (30) between a starting position and an end position. The contact-breaker (1) comprises a means (51) for retaining the core (43) of the micro-solenoid (41) in the end position.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: June 19, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Jean Sébastien Metral, Tristan Guesney, José Sanchez
  • Claw rotor provided with an excitation winding insulator, and rotary electrical machine equipped with the claw rotor
    Patent number: 9960651
    Abstract: A claw rotor (2) provided with an insulator (11) for a field coil (10) and a rotary electric machine equipped with such a rotor, the insulator comprising a plurality of projecting petals (121, 131) intended to engage with the inner inclined periphery of a claw (9). Each of the petals (121, 131) includes: a base (122, 132) solidly connected to an associated cheek (120, 130), side edges (123, 133), and an end (124, 134). The claw-pole rotor (2) is wherein each petal (121, 131) has a thickness (e) at the side edges (123, 133) which increases from the base (122, 132) to the end (124, 134).
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: May 1, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Henri Delianne, David Margueritte
  • Rotary electrical machine for motor vehicle
    Patent number: 9960657
    Abstract: A rotating electrical machine, in particular to an alternator (A) or to an alternator-starter, for a motor vehicle, comprising: a rotor (2) supporting a front fan (23) at the front and a rear fan (24) at the rear, the rotor being rotatable about an axis of rotation, a stator (4) comprising a stator body and at least one winding placed on the stator body, the winding forming front and rear chignons on either side of the stator body, and a casing (1) in which the stator and the rotor are placed.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: May 1, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Michel Fakes, Jeremie Lutun, Dominique Caubert
  • Control loop of a digital control device of a rotary electrical machine with excitation for a motor vehicle
    Patent number: 9960718
    Abstract: The invention relates to a control loop (10) which is installed in a voltage regulator of a motor vehicle alternator and controls an output voltage of the latter by adjusting an excitation current of the alternator. The control loop includes, at the input, means for measuring (31) the output voltage by sampling, generating a measurement signal (Um), error-calculation means (13) generating an error signal (e) equal to a difference between the measurement signal (Um) and a set value (Uo), means for processing the error signal (e) including an amplifier (14) and generating a control signal (Ysat) and, at the output, means (35) for generating a control signal (PWM) controlling excitation control means in accordance with the control signal (Ysat). According to the invention, the processing means also include a phase-advance filter (24).
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: May 1, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Pierre Tisserand, Pierre Chassard
  • STARTER STATOR FOR A MOTOR VEHICLE WITH AN OPTIMISED REMANENCE RANGE
    Publication number: 20180115203
    Abstract: The invention mainly relates to a motor vehicle starter stator (3) comprising: —a cylinder head (4); and —a set of permanent magnets (5) mounted against an inner face (41) of the cylinder head (4). Each permanent magnet (5) from the set is magnetically oriented in a radial manner. The stator is characterized in that the mean remanence of the permanent magnet set (5) is within a range of between 0.73 and 0.87 Tesla, in particular between 0.78 and 0.83 Tesla, and preferably between 0.79 and 0.81 Tesla.
    Type: Application
    Filed: April 7, 2016
    Publication date: April 26, 2018
    Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Jean-Marc DUBUS, Nicolas LABBE, Raphaël ANDREUX, Aymeric DERVILLE
  • STATOR OF A MOTOR VEHICLE STARTER PROVIDED WITH A PERMANENT MAGNET FORMING A PLURALITY OF POLES
    Publication number: 20180097410
    Abstract: The invention relates to a starter for a motor vehicle heat engine. The starter includes a rotary electric machine provided with a stator (3). The stator (3) includes a magnetic pole assembly wherein a permanent magnet (5) forms at least two poles of the magnetic pole assembly. The permanent magnet may have a cylindrical shape and be molded from a combination of magnetic particles embedded within a non-magnetic binder. Using this structure, the number of magnets used to create the stator may be limited in number, thereby limiting the necessary assembly steps to create the stator.
    Type: Application
    Filed: April 7, 2016
    Publication date: April 5, 2018
    Applicants: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR, VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Jean-Marc DUBUS, Nicolas LABBE
  • Brush box for electric machine brush-holder and corresponding brush-holder
    Patent number: 9935415
    Abstract: A brush box (23) for a brush-holder, which is useful as a housing for an electric machine brush (25). The brush box (23) comprises a lower portion (56) for guiding the brush, connected to a mounting (60), and an upper portion (58) for guiding the brush, the lower (56) and upper (58) guiding portions being open on the side of a front surface (35) and a rear surface of the brush (25). The lower (56) and upper (58) guiding portions are separated from one another by a space (61) enabling a braid of the brush (25) to pass through.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 3, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Maximilien Gentil, Alexandre Saltel
  • Electronic assembly for a rotary electric machine for a motor vehicle
    Patent number: 9935520
    Abstract: The present invention relates to an electronic assembly (10) for a rotary electric machine (1) for a motor vehicle. Said electronic assembly is characterized by comprising: blocks (100, 200, 300) of electronic components, the blocks having different heat dissipation needs, the blocks being: a power block (100), a filter block (200), a control block (300), and a device (10?) for cooling said blocks (100, 200, 300); said cooling device (10?) comprising: a protective cover (400) suitable for covering the power, filter and control blocks (100, 200, 300), said protective cover comprising openings (401, 402, 403, 404) suitable for generating cooling air flows which differ according to the heat dissipation needs of each of the power (100), control (200) and filter (300) blocks; and cooling elements (101, 201) coupled with said protective cover (400).
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: April 3, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Manuel Falguier, Alexis Hosni, Michel Fakes, Fabien Guerin, Yannick Le-Meitour, Philippe Baudesson
  • VOLTAGE REGULATOR OF A MOTOR VEHICLE ALTERNATOR, REGULATOR BRUSH-HOLDER, AND CORRESPONDING ALTERNATORS
    Publication number: 20180083560
    Abstract: The invention relates to a voltage regulator (43) for a motor vehicle alternator (44). The device comprises a control module (I) for controlling an excitation current (lexc) in an excitation winding (3) of the alternator (44) according to a difference (5) between a setpoint voltage (DO) and a control voltage (Dbat) of an on-board network (9). The on-board network (9) of the vehicle is powered by a battery (10) to which the alternator (44) is connected. According to the invention, the voltage regulator (43) further comprises a safety module (30) that monitors the control voltage (Ubat) and which is separate from the control module (I). In a particular embodiment, the control module (I) and the safety module (30) are connected electrically by external bonding interconnections.
    Type: Application
    Filed: April 19, 2016
    Publication date: March 22, 2018
    Applicants: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR, VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Pierre CHASSARD, Pierre TISSERAND
  • STATOR FOR AN ALTERNATOR OR AN ELECTRICAL MACHINE
    Publication number: 20180083498
    Abstract: The invention relates to a stator (13) for an alternator or an electric machine, which comprises: a cylindrical hub (14) in which a plurality of slots (201) that extend in the axial direction are formed, and a coil (12) mounted in the slots; in which the stator core (14) comprises: a cylindrical base portion (203) forming a cylinder head (203), a plurality of teeth (202) arranged such as to extend from the base portion towards an axial center (X-X), the plurality of slots (201) being defined by the base portion and by an adjacent pair of the teeth (202). For each notch (201) the width at the opening of the notch (l_eo) is smaller than the width (l_ec) at the cylinder head (203).
    Type: Application
    Filed: October 30, 2015
    Publication date: March 22, 2018
    Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Eric SIMON, Matthieu BONNICI, Olivier SAVINOIS, Bruno DANDRE, Vincent RAMET, Stéphane DE CLERCQ, Xavier DUNESME, Jean-Francois GAUTRU, Pierre FAVEROLLE
  • Excitation current-limited power generator
    Patent number: 9887655
    Abstract: An excitation current-limited power generator includes a digital interface configured to be coupled to an engine control unit (ECU), a regulator coupled configured to be coupled to an excitation current input of an alternator, the excitation current controlling current generated by the alternator, a frequency sensor configured to measuring rotation speed of the alternator, and memory storing a communicated limit received by the digital interface and a first permanent limit, the regulator configured to limit the excitation current to the lesser of the first permanent limit and the communicated limit.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: February 6, 2018
    Assignees: INFINEON TECHNOLOGIES AG, VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Frank Auer, Christoph Seidl, Robert Hartmann, Ludovic Doffe, Cédric Agneray
  • Method and device for controlling an alternator-starter of a motor vehicle, and corresponding alternator-starter
    Patent number: 9874192
    Abstract: The method according to the invention is implemented in an alternator-starter (1) comprising phase windings (u,v,w) connected to an inverter (3) linked to an onboard electrical network (2) powered by a battery for operation as a starter. The invention involves controlling the inverter in a chopped full-wave control mode when the rotational speed (?) of the alternator-starter is lower than at least a threshold speed and in a full-wave control mode when the rotational speed is higher than the threshold speed. According to a specific embodiment, the switching between the chopped full-wave control mode and the full-wave control mode takes place according to a hysteresis cycle using two predefined threshold speeds.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: January 23, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Christophe Louise, Gael Blondel, Ronald Malbranque
  • Rotor for a rotary electric machine and rotary electric machine comprising such a rotor
    Patent number: 9871420
    Abstract: A rotor (1) comprising a plurality of alternating magnetic poles formed by permanent magnets (3) distributed regularly between a circumferential portion (5) and a central portion (6) of the magnetic body (2) of the rotor and defining circumferential pole sections (7). The pole sections have a pre-determined pole pitch (Thetarho) and comprise a lobe-forming radial section (8). The lobe-forming radial section partially covers the magnets, such as to maximize a useful magnetic flux (PhiU) flowing radially through each of the pole sections and to minimize a leakage magnetic flux flowing through the circumferential portion. The pole sections can have a pre-determined pole overlap angle (Thetar) such as to maximize the useful magnetic flux (PhiU) and to minimize the leakage magnetic flux (PhiL), said overlap angle (Thetar) being a viewing angle of the lobe (8) from a point on the axis of the rotor.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: January 16, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Lilya Bouarroudj, Jean-Claude Matt, Jean-Claude Labrosse
  • Excitation circuit of a motor vehicle alternator, voltage regulator, and alternator which incorporates it
    Patent number: 9866162
    Abstract: The excitation circuit according to the invention controls an excitation current (lexc) in an excitation winding (2) of an alternator by means of an on-board network voltage control loop (Vbat+, 3) of the vehicle, and comprises a first MOS power transistor (9) which is connected between a first positive supply terminal Vbat+ (6), and a first excitation terminal (7), and is controlled by the control loop by means of a first control circuit (10), a second MOS power transistor (11), which is connected between the first excitation terminal and a second excitation terminal (8) which is connected to a ground terminal (5) and acts as a free wheel diode, whilst being controlled by means of a second control circuit (12). According to the invention, the circuit additionally comprises a control loop (15) of a drain-source voltage (Vds) of the second transistor.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: January 9, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Laurent de Lamarre, Pierre Tisserand, Pierre Sardat, Laurent Labiste, Pierre Chassard, Guillaume Duthilleul, Pierre-François Ragaine, Romuald Morvany, Jeremy Lagrange
  • METHOD OF CONTROLLING A DEVICE FOR REGULATING AN AUTOMOTIVE VEHICLE ALTERNATOR, CORRESPONDING REGULATING DEVICE AND ALTERNATOR
    Publication number: 20170346428
    Abstract: The method of control according to the invention slaves a DC voltage generated by the alternator to a predetermined setpoint value by controlling an excitation current flowing in an excitation circuit comprising an excitation winding of a rotor of the alternator. The excitation current is controlled by means of a semiconductor switch, in turn controlled by a control signal having a predetermined period. The method comprises a detection of a failure of the excitation circuit. At least one short-circuit of the excitation winding is detected. According to another characteristic of the method, the control signal is generated on the basis of a combination of a setpoint signal formed by pulses of the predetermined period exhibiting a duty ratio representative of the setpoint value and of a detection signal indicative of the short-circuit.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 30, 2017
    Applicants: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR, VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Pierre TISSERAND, Pierre CHASSARD, Thibault ARROU, Giuseppe PASETTI, Francesco TINFENA, Alexandre SCHMITT
  • Rotor of rotary electrical machine with interpolar structures
    Patent number: 9787146
    Abstract: A rotary electrical machine rotor having claw-shaped poles. The machine comprising a plurality of interpolar magnetic assemblies having at least two magnetic assemblies comprising different magnet grades.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: October 10, 2017
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Mostafa Kadiri, Stéphane Desenclos
  • Starter motor with drive assembly fitted with a coupling system for coupling a pinion mounted freely on its rotor shaft, and associated method
    Patent number: 9765744
    Abstract: A starter comprises an electric motor which drives a rotor shaft, a drive shaft that can be rotationally coupled to the rotor shaft, and a pinion mounted on the drive shaft and movable in a translational movement between a rest position and an active position by a movement system. The starter comprises a coupling system that couples a rotary movement in one direction of rotation of the rotor shaft to the pinion. The coupling system moves from an uncoupled state into a coupled state and vice versa. In the coupled state, the rotor shaft is firmly attached to the pinion in the starting direction of rotation. In the uncoupled state, the pinion is disconnected from the rotor shaft in both directions of rotation. The starter further comprises a movement system for moving the pinion from the coupling system into the uncoupled state as it moves the pinion into active position.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: September 19, 2017
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Jean-Sébastien Metral, Guillaume Seillier, Vincent Villard