Patents Assigned to Valeo
  • Device for controlling a polyphase synchronous rotary electrical machine and polyphase synchronous rotary electrical machine containing such a device
    Patent number: 8115435
    Abstract: A control device (2??) for an AC-DC current converter associated with a polyphase synchronous rotary electrical machine. The AC-DC current converter contains, for each phase, a branch of two power switches in series, known as high and low (25). The control device (2??) contains means of generating a signal (?(t)) representing the angular position of the rotor. The control device contains one or more digital tables (20 H, 20 B) addressed by the signal of the angular position of the rotor (?(t)) and delivering at their outputs binary control signals (200 H- 202 H, 200 B- 202 B), each controlling one branch of power switches (25).
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: February 14, 2012
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: François-Xavier Bernard, Christophe Louise, Hugues Doffin
  • METHOD FOR CONTROLLING LIGHT-EMITTING DIODES
    Publication number: 20120025727
    Abstract: A method and a device for gradually controlling the illuminating light intensity of light-emitting diodes by modulating the width of current pulses of defined duty cycle, using a DC-to-DC voltage converter and a control circuit for switching the supply current of the light-emitting diodes. Prior to switching the power supply of the diodes the DC-to-DC converter is initiated (A), so as to generate voltage pulses of defined duty cycle; the steady state of each pulse is determined (B), so as to generate a voltage pulse (CP) calibrated to a voltage level substantially corresponding to the steady-state level; and then the light-emitting diodes are powered (D) by applying each calibrated pulse to the light-emitting diodes by means of the switchable control circuit.
    Type: Application
    Filed: July 12, 2011
    Publication date: February 2, 2012
    Applicant: VALEO VISION
    Inventors: Sebastian KRICK, Loïc FLANDRE
  • Ultrasound sensor with membrane
    Patent number: 8104351
    Abstract: The invention relates to an ultrasonic sensor (2) in particular a motor vehicle ultrasonic sensor, comprising a housing (4), and a diaphragm (6) which is supported in or on a section (12) of the housing (4) and which has a diaphragm base (8) and a substantially cylindrical wall section (18) adjoining the diaphragm base (8), at least one stabilizing and/or attenuating auxiliary element (22, 30, 32) being arranged on or in the wall section (18) of the diaphragm (6).
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: January 31, 2012
    Assignee: VALEO Schalter und Sensoren GmbH
    Inventors: Thomas Jung, Hans-Wilhelm Wehling, Uwe Kupfernagel, Dietmar Gruedl, Heinrich Gotzig
  • Method for adjusting a natural refrigeration cycle rate of an air conditioner
    Patent number: 8104300
    Abstract: A method for adjusting a natural refrigeration cycle rate of an air conditioner includes monitoring a time between at least two sequential refrigeration “off” events or at least two sequential refrigeration “on” events, and determining whether the time is below or above a predetermined time. If the time is below the predetermined time, the method further includes increasing a refrigeration “on” temperature threshold. If, however, the time is above the predetermined time, the method further includes decreasing the refrigeration “on” temperature threshold.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: January 31, 2012
    Assignee: Valeo Climate Control Corp.
    Inventor: Jonathan Trevor Atwater
  • Air control device in particular for a heating ventilation and/or air conditioning installation for automotive vehicles
    Patent number: 8105139
    Abstract: The present invention refers to an air control device (1), in particular for a heating, ventilation and/or air conditioning installation for automotive vehicles, comprising a housing (3) having two apertures (4, 5). It comprises two dampers (6, 7) with at least one portion of sealing. Dampers (6, 7) have a lower part comprising a U-shaped section (22?, 22?) defining a groove (39) operating conjointly with a portion having an inverted U shape (46) of housing (3) to create another portion of sealing. Housing (3) has a lower part (30?, 30?) comprising a groove (47) operating conjointly with a rib (43) disposed on the spiral (13) whereon housing (3) is mounted to define a further portion of sealing.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: January 31, 2012
    Assignee: Valeo Sistemas Automotivos LTDA
    Inventor: Micael Mateus
  • METHOD AND ELECTRIC COMBINED DEVICE FOR POWERING AND CHARGING WITH COMPENSATION MEANS
    Publication number: 20120019173
    Abstract: The invention relates to a combined device and method for powering and charging, that comprises an AC motor (6), a converter (2), storage means (5), and switching means (4) either for enabling the powering of the motor (6) or for enabling the charging of the storage means (5) by the converter. The device includes means for compensating the magnetic fields generated during the charge of the storage means (5) in order to limit or prevent the movements of the motor (6) rotor.
    Type: Application
    Filed: November 17, 2009
    Publication date: January 26, 2012
    Applicant: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: Luis de Sousa, Boris Bouchez
  • Vehicle headlamp control method
    Publication number: 20120022743
    Abstract: A method for controlling at least one component of a motor vehicle provided with energy storage means. The method comprises the steps of determination of an energy reserve value of the vehicle; evaluation of at least one critical energy autonomy threshold; and comparison of the energy reserve value with at least one critical autonomy threshold so as to deduce therefrom a setpoint signal for controlling the component.
    Type: Application
    Filed: July 22, 2011
    Publication date: January 26, 2012
    Applicant: VALEO VISION
    Inventors: Martin GRIMM, Pierre ALBOU
  • Method for the anticipated ascertainment of a bend on a portion of road, and associated system
    Patent number: 8103422
    Abstract: A system and method for the anticipated detection of a bend on a portion of road taken by a motor vehicle comprising the following steps: establishing, by means of a first system, called as the navigation system, a first set of information on the bend in question, the first set of information being associated with a first confidence index; establishing, by means of a second system, called as the image processing system, a second set of information on the bend in question, the second set of information being associated with a second confidence index; and establishing, from the first set of information and the second set of information and by taking into account the first confidence index and the second confidence index, a third set of information on the bend in question.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: January 24, 2012
    Assignee: Valeo Vision
    Inventors: Benazouz Bradai, Anne Herbin, Michel Basset, Jean-Philippe Lauffenburger
  • Light module for signaling
    Patent number: 8096690
    Abstract: A light source or signaling module for the emission of an illuminating or signaling beam along a main direction, of the type including a light source, a luminous flux recovery mirror made up of a set of reflecting tiles, each reflecting tile being formed of a conical segment with two focal points, the first of which is located on the light source and a second focal point which is located, with respect to the reflecting tile, in a direction parallel to the main direction, each reflecting tile forming an image of the light source. The parameters of the conical segments with two focal points made up of the reflecting tiles are adjusted to confer upon the second focal points pre-determined photometric characteristics, and the images from the light source are directly visible.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: January 17, 2012
    Assignee: Valeo Vision
    Inventors: Whilk Goncalves, Otavio-Henrique Reis
  • FLAT WIPER BLADE
    Publication number: 20120005855
    Abstract: Flat wiper blade for use in windscreen wiper modules of vehicles, essentially consisting of a wiping rubber in addition to two spring rails, extending in the longitudinal direction of the wiper blade, spaced apart from one another and receiving the wiping rubber in a subsection between them, which each respectively project over the wiping rubber on the wiper blade longitudinal sides and with at least one jet or injection strip provided on one longitudinal side of the wiper blade, having at least one injection or washing duct with a large number of jet or injection openings for application of a washing and cleaning fluid to a vehicle windscreen and which, with use of clip-like fixtures spanning the wiper blade on the upper side of the wiper blade, is retained on the external peripheries of the spring rails.
    Type: Application
    Filed: April 14, 2010
    Publication date: January 12, 2012
    Applicant: Valeo Systemes d'Essuyage
    Inventors: Bruno Egner-Walter, Michael Schäuble
  • Method for recovering electrical energy in vehicle with regenerative braking
    Patent number: 8092338
    Abstract: Method for recovering electrical energy in a vehicle with regenerative braking is used in a vehicle equipped for this purpose with an electrical capacitance device to store electrical energy supplied by a rotary electrical machine of the vehicle during regenerative braking operation. A choice is made, on the basis of the initial rotational speed of the rotary electrical machine to apply an energy recovery stratagem from at least the following two: —a first energy recovery strategy that favors high power supplied by the rotary electrical machine; and—a second energy recovery strategy that favors high efficiency of the rotary electrical machine.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: January 10, 2012
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Julien Masfaraud, Hugues Doffin
  • ELECTRIC POWER ASSISTED DRIVE, IN PARTICULAR A WIPER DRIVE
    Publication number: 20120000303
    Abstract: Electromotive auxiliary drive, particularly a wiper drive, with an electric motor and a downstream gear forming an output shaft of the auxiliary drive, presenting at least two gear stages arranged in series in a drive train between the electric motor and the output shaft, of which one first gear stage is designed in the manner of a worm gear consisting of a worm and of a gearwheel or worm wheel interacting with this worm.
    Type: Application
    Filed: March 22, 2010
    Publication date: January 5, 2012
    Applicant: VALEO SYSTEMES D'ESSUYAGE
    Inventor: Siegfried Stefani
  • ELECTRIC DEVICE COMPRISING AN ALTERNATING CURRENT ELECTRIC MOTOR AND A CONTROL INVERTER AND A METHOD FOR MEASURING THE ELECTROMOTIVE FORCE OF THIS DEVICE
    Publication number: 20110316464
    Abstract: The invention relates to an electric device (1) comprising an alternating current electric motor (3) and a control inverter (5) for controlling the phase or phases of the motor (3). The motor (3) comprises, on at least one winding of at least one phase (PA, PB, PC), a point (Ma, Mb, Mc) for measuring a voltage relative to a predefined potential (M), the measurement point (Ma, Mb, Mc) being chosen so that it divides the winding into a first (Za1; Zb1; Zc1) and a second (Za2; Zb2; Zc2) portion such that the electromotive forces (ea1, ea2) induced in the two portions are phase-shifted relative to one another and means (11A; 11B; 11C) for measuring the voltage between the measurement point and the predefined potential. The invention also relates to an associated method for measuring electromotive forces.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 29, 2011
    Applicant: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: BORIS BOUCHEZ, LUIS DE SOUSA
  • METHOD FOR CLOSED-LOOP CONTROL OF A DC-DC VOLTAGE CONVERTER COMPRISING A PLURALITY OF INTERLACED CELLS OPERATING IN ZERO-VOLTAGE SWITCHING MODE
    Publication number: 20110316497
    Abstract: A method for closed-loop control of a DC-DC voltage converter operating in zero-voltage switching mode (ZVS) with a switching threshold (Z) is disclosed. The converter includes a plurality of interlaced cells, each cell having at least two controlled switches, which are alternately closed and open, and an inductor (L) in which an output current flows from the cell, and a clock with a given switching period configured for triggering the switching of the switches between upper (+M) and lower (?M) control thresholds, the control threshold (+M, ?M) with the value nearest to the switching threshold (Z) being denoted as an associated control threshold.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 29, 2011
    Applicant: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: Pierre Sardat, Luis de Sousa, Stephane Fontaine
  • METHOD FOR CONTROLLING SWITCHES OF SWITCHING ARMS, IN PARTICULAR IN VIEW OF CHARGING ACCUMULATION MEANS, AND CORRESPONDING CHARGING DEVICE
    Publication number: 20110316481
    Abstract: A method for charging accumulation means configured by an electric charging device is disclosed. The charging device includes switching arms respectively including a first switch and a second switch. The method involves ordering a predetermined number of first switches to close respectively for an associated closure time, and on each opening of a first switch that was previously closed, another first switch is ordered to close for an associated closure time, so that a constant number of first switches are closed at a same time.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 29, 2011
    Applicant: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: Boris Bouchez, Luis De Sousa
  • ALTERNATING-CURRENT ELECTRIC MOTOR OF A COMBINED ELECTRIC DEVICE FOR POWERING AND CHARGING
    Publication number: 20110316454
    Abstract: The present invention relates to an alternating-current electric motor of a combined electric device for powering and charging, the said electric motor being formed by a stator connected to an electricity network of which the number of phases is lower than the number of phases of the said motor, the said charging current of the said network being injected via a connection point dividing each phase of the said stator connected to a phase of the said network into two half-windings, the said motor being characterized in that each half-winding of a phase comprises a plurality of coils wired together so as to reduce the magnetic linkage of each half-winding at the said connection point so that there exists an apparent non-zero inductance at the said connection point in charging mode of the said device.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 29, 2011
    Applicant: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: Boris Bouchez, Luis de Sousa
  • MULTIFUNCTIONAL INTERNAL LIGHTING DEVICE FOR A MOTOR VEHICLE
    Publication number: 20110317446
    Abstract: The present invention relates to a multifunctional internal lighting device for a motor vehicle. A single internal lighting device comprises various LED-type light sources which are capable of performing at least one first internal lighting function and a second internal lighting function. The various LEDs are distributed into at least two separate sets, a first set being dedicated to the performance of the first internal lighting function and a second set being dedicated to the performance of a second internal lighting function. In particular, it is proposed to use axial emission LEDs or through-emission LEDs and lateral emission LEDs to perform the first function and the second function respectively.
    Type: Application
    Filed: September 9, 2011
    Publication date: December 29, 2011
    Applicant: VALEO VISION
    Inventors: Eric Geoffroy, Jérôme Monnot, Michel Andrieu
  • HEAT EXCHANGE DEVICE, ESPECIALLY FOR AN AUTOMOTIVE VEHICLE
    Publication number: 20110315342
    Abstract: A heat exchange device, especially for an automotive vehicle, One embodiment comprises at least one metal foam and a thermal member, in direct contact with the metal foam, enabling heat exchange between the thermal member and the metal foam.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 29, 2011
    Applicant: VALEO VISION
    Inventors: Eric MORNET, Christine ROUCOULES
  • ELECTRIC DEVICE FOR DRIVING MECHANICAL EQUIPMENT AND ASSOCIATED METHOD
    Publication number: 20110316462
    Abstract: The present invention relates to an electric device for driving mechanical equipment comprising an alternating current motor and an inverter, the said inverter comprising, for each phase of the said motor, an H bridge structure comprising four switching elements distributed over two branches connecting two terminals of the said H bridge structure and intended to supply the winding of the said at least one phase of the motor, the said winding being a winding with a mid point and the said electric device being characterized in that it also comprises, for each phase of the said motor, an energy storage unit, in particular a supercondenser, connected, on the one hand, to the mid point of the winding of the concerned phase of the motor and, on the other hand, to a terminal of the H bridge structure supplying the said winding.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 29, 2011
    Applicant: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: Boris Bouchez, Luis De Sousa
  • Lamp for a vehicle
    Patent number: D653370
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: January 31, 2012
    Assignee: Valeo Vision S.A.S.
    Inventors: Olivier Grebert, Cyril Herbin, Benony Grigorescu, Nicolas Simmet