| VALEO EQUIPEMENTS ELECTRIQUES MOTEUR Patent applications |
| Patent application number | Title | Published |
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| 20120095644 | METHOD OF CONTROLLING AN ENERGY STORAGE UNIT IN A VEHICLE MICRO-HYBRID SYSTEM - A method of controlling a supercapacitor energy storage unit ( | 04-19-2012 |
| 20120092001 | METHOD AND DEVICE FOR DIAGNOSIS OF SENSOR FAULTS FOR DETERMINATION OF ANGULAR POSITION OF POLYPHASE ROTARY ELECTRICAL MACHINE - Disclosed is a method and device for diagnosis of functioning faults caused by the angular position measurement sensors of the rotor of a polyphase rotary electrical machine comprising a stator, in particular of the alternator-starter type. The diagnosis is obtained by carrying out direct measurements of pairs of sine and cosine signals determined on the basis of linear combinations of the polyphase signals provided by these sensors. This measurement therefore does not make it necessary to know the exact value of the speed of the machine. The diagnosis of functioning faults caused by the angular position measurement sensors requires only the execution of elementary logic operations, i.e. the determination of the “true” or “false” logic states of two inequality equations. | 04-19-2012 |
| 20110283524 | ROTOR FOR A ROTARY ELECTRICAL MACHINE COMPRISING GROOVES FOR MAGNETS - A rotor for an electrical machine that comprises two parallel magnet wheels, each of which comprises axial teeth so that each tooth on a wheel is situated in the space existing between two consecutive teeth on the other wheel, and that comprises magnetic elements, each arranged between two adjacent teeth and partly received in a groove produced in each of the opposite lateral faces of the two adjacent teeth. In one embodiment, each of the two adjacent teeth comprises one groove at a maximum, which emerges at the base of the first tooth. | 11-24-2011 |
| 20110232597 | METHOD AND DEVICE FOR CONTROLLING AN ENGINE STOP/RESTART SYSTEM TO BE MOUNTED ON AN AUTOMOBILE - A method and a device ( | 09-29-2011 |
| 20100295300 | METHOD FOR CONTROLLING A REVERSIBLE ELECTRICAL MACHINE COUPLED TO A HEAT ENGINE, ENGINE SUITABLE FOR CARRYING OUT THE METHOD, AND USE THEREOF - The invention relates to a method for controlling a reversible electrical machine ( | 11-25-2010 |
| 20100259124 | METHOD FOR PRODUCING A ROTARY ELECTRIC MACHINE STATOR AND ARRANGEMENT OF CONDUCTORS ON A SUPPORT - A method of producing a stator for a rotary electrical machine comprising a body in which axial recesses are produced and comprising a plurality of conductors arranged in the recesses, which comprises a step of depositing conductors on a linear support that comprises transverse recesses, comprising a first phase of depositing conductors in the recesses in the support in order to form a first layer of conductors, and a second phase of depositing conductors in the recesses, in order to form a second layer of conductors that is arranged vertically above the first layer; the first deposition phase and the second deposition phase consists of depositing one and the same conductor on the linear support. The invention also proposes an arrangement of a set of conductors on a linear support obtained at the end of the deposition step. | 10-14-2010 |
| 20100231145 | METHOD FOR CONTROLLING A POLYPHASE VOLTAGE INVERTER - A method for driving a power bridge ( | 09-16-2010 |
| 20100231082 | METHOD FOR PRODUCING THE COIL OF A ROTARY ELECTRIC MACHINE STATOR AND STATOR THUS OBTAINED - A stator which comprises a core, slots provided in the core and a coil comprising a plurality of windings, in which each winding consists of at least one conductor which is arranged in slots of the core associated with the winding, forming axial ripples and forming overall a spiral coaxial to axis A of the core which consists of a set of turns radially superimposed, wherein each conductor comprises a pair of electrical lead wires which are adjacent and which are arranged at the same radial dimension relative to one another, at each point of the conductor. The invention also proposes a method for constructing the stator. | 09-16-2010 |
| 20100164318 | PHASE WINDING FOR A ROTATING ELECTRICAL MACHINE STATOR AND STATOR EQUIPPED WITH SAME - A rotating electrical machine stator comprising an annular cylindrical body including axial grooves, and at least one phase winding including corrugated turns of wire, the phase winding comprising a first outer half-phase and a second inner half-phase which are radially superimposed, the first outer half-phase including outer leading-out wires projecting from the radial walls of the body and the second inner half-phase including outer leading-out wires projecting from the radial walls of the body. The invention is characterized in that for each phase winding, the wire length of each turn of the inner half-phase is greater than the wire length of each turn of the outer half-phase. The invention also concerns a phase winding designed to be mounted in such a rotor. | 07-01-2010 |
| 20100090561 | PROJECTING POLE ROTOR COMPRISING COIL END SUPPORT PLATES AND ROTARY ELECTRIC MACHINE COMPRISING ONE SUCH ROTOR - A rotor of a rotary electric machine comprising a rotor shaft, a stack of laminations, which is coaxial to the rotor shaft and which comprises at least two radially-projecting poles, a field coil which is wound around each pole, such that the ends of the coil project out axially in relation to each external axial end radial face of the lamination stack and two plates for supporting the lamination stack, which are disposed axially on either side of the stack, housings being provided in the internal radial face of each plate for receiving the coil ends. At least one of the housings comprises a contact surface with the external radial face of the associated coil end. | 04-15-2010 |
| 20090230906 | MOS TRANSISTOR CONTROL - The invention concerns a method for controlling a switching assembly comprising a plurality of transistors connected in parallel, having a linear operating mode, a closed-switch operating mode and an off operating mode including a first operating phase during which a current flows from a source terminal to a drain terminal and a second operating phase during which no current flows. The method includes the following successive steps; (a) controlling the switching assembly in closed-switch mode during part of the first phase; (b) controlling the switching assembly in linear mode; (c) controlling the assembly in off mode during part of the second phase. | 09-17-2009 |
| 20090218901 | ROTOR FOR A ROTARY ELECTRICAL MACHINE COMPRISING GROOVES FOR MAGNETS - A rotor for an electrical machine that comprises two parallel magnet wheels, each of which comprises axial teeth so that each tooth on a wheel is situated in the space existing between two consecutive teeth on the other wheel, and that comprises magnetic elements, each arranged between two adjacent teeth and partly received in a groove produced in each of the opposite lateral faces of the two adjacent teeth In one embodiment, each of the two adjacent teeth comprises one groove at a maximum, which emerges at the base of the first tooth. | 09-03-2009 |
| 20090216430 | AUTOMATIC VEHICLE START/STOP CONTROL METHOD - A method of managing the degraded modes of a system for the automatic starting/stopping of a heat engine of a vehicle, whereby the system receives information supplied by measurement and detection sensors and by a bus for the communication of vehicle operating data. The method comprises the following steps consisting in verifying the presence and validity of the information supplied by the sensors and, in the event of a negative result, defining a first degraded mode in which any stopping phase of the automatic start/stop mode is forbidden until an end-of-restriction condition has been fulfilled, and, in the even of a positive result, testing the communication with the data communication bus and, in the event of a negative result, defining a second degraded mode in which the automatic start/stop mode is inhibited until an end-of-inhibition condition has been fulfilled. | 08-27-2009 |
| 20090206786 | METHOD OF CONTROLLING A REVERSIBLE ELECTRIC MACHINE - A method of preparing a reversible electric machine with a phase for starting a heat engine of a vehicle that is equipped with an automatic start/stop system, whereby said machine comprises a rotor which is connected to the heat engine. The method comprises the following steps consisting in detecting an action prior to a heat engine start command and applying a magnetizing electric current to the rotor of the machine upon detection of the action. | 08-20-2009 |
| 20090121576 | METHOD FOR INSERTING A COIL IN A POLYPHASE ROTATING ELECTRICAL MACHINE STATOR, AND ASSOCIATED STATOR - A method for inserting a corrugated coil in an alternator stator, the coil comprising a number of wires, each designed to form around the inner surface of an assembly of plates a spiral including a number of turns corresponding each to one turn of the inner surface. The method includes forming each wire, the latter being configured into a succession of recesses comprising two lateral branches designed to be inserted each into a slot; and inserting the turns of each wire into a series of slots of the stator, the turns of the various wires being radially superimposed in a predetermined sequence. | 05-14-2009 |
| 20090096311 | METHOD FOR MAKING STATORS OF POLYPHASE ROTATING ELECTRICAL MACHINES, STATORS OBTAINED BY SAID METHOD - A method for making a polyphase rotating electrical machine stator, comprising an assembly of plates, slots, and a corrugated coil including a plurality of phase windings each formed with at least one continuous electrically conductive wire configured in successive recesses comprising a plurality of branches extending in a series of slots and a plurality of linking segments connecting the branches. The invention is characterized in that the method includes at least one first step during which the wires of the phase windings are arranged simultaneously on a dummy rotor and are during that same process configured into recesses, and a second step during which the dummy rotor is used for transferring the coil into the assembly of plates or for forming the stator. | 04-16-2009 |
| 20080315823 | Control and Power Device for a Rotating Electrical Machine - A control and power device for a rotating electrical machine comprising a management circuit and a power circuit including a number of power transistors and driver circuits associated with the power transistors. The invention is characterized in that it comprises connection means between the management circuit and the driver circuits for switching on the driver circuits and transmitting at least one transit potential between the management circuit and the driver circuits. The invention is applicable to alternator-starter. | 12-25-2008 |
| 20080315714 | Electrical Rotating Machine Comprising an Intermediate Sleeve Interposed Between the Shaft and the Polar Wheels and Method for Making the Rotor - An electrical rotating machine rotor, in particular for a motor vehicle, comprising a central shaft, an annular core coaxial with the shaft and two polar wheels which are axially arranged on either side of the core, of the type wherein the shaft includes at least one drive section which is axially force-fitted into a fixing bore of at least one component of the rotor so as to secure in rotation at least one of the two polar wheels of the rotor to the shaft, an intermediate sleeve being radially interposed between each polar wheel and the central shaft, and on which sleeve is mounted said polar wheel. The invention also concerns a method for making such a rotor. | 12-25-2008 |
| 20080312854 | Method for Measuring Electric Current in a Plurality of Conductors - A method and system for measuring electric current in a plurality (n) of conductors. According to the invention, the method comprises the following steps: an electric current transducer is place substantially opposite to each conductor (I, i=1, . . . , n); a decorrelation matrix ([G]), which is a function of the position of the transducers in relation to the conductors, is constructed; the current (I | 12-18-2008 |
| 20080311763 | Power Interconnecting Part for Electrical Rotating Machine - A power interconnection piece for a rotary electrical machine, wherein the power interconnection piece comprises at least one power track provided with electrical power terminals intended to cooperate with a power track of at least one electronic module so as to distribute electrical power to the electronic module, the electronic module being integrated on the rotary electrical machine and wherein the power interconnection piece comprises a base plate made from insulating material that at least partially overmolds the power track. | 12-18-2008 |
| 20080309271 | Control and Power Module for a Rotating Electric Machine - A control and power module for a rotating electric machine comprising a bridge of switches, a plurality of driver circuits for driving a bridge of switches, a control circuit and a plurality of communication connections between driver circuits and a control circuit. When the machine is in a rest mode, at least one connection of the plurality of communication connections is used for transmitting signals between the control circuit and the driver circuits for carrying out a function related to the rest mode of the machine, and when the machine is in the operational mode, all connections of the plurality of communication connections are used for transmitting signals between the control circuit and the driver circuits. | 12-18-2008 |
| 20080309266 | Device for Controlling a Rotating Electrical Machine - A device for determining the position of the rotor of a rotating electrical machine. The invention is characterized in that the device comprises a plurality of magnetic field sensors stationary relative to the stator and adapted to deliver multiphase electric signals representing a magnetic field detected by the sensors, and means for processing the multiphase electric signals by an operator capable of providing diphase signals depending on the position of the rotor. The invention is applicable to rotating electrical machines used in the automotive industry. | 12-18-2008 |
| 20080306698 | Method and Device for Estimating the Current Output By an Alternator for a Motor Vehicle - A method and device for estimating the current output by an alternator for a motor vehicle provide the calculation of an output value (IALT) that represents the current output by the alternator based on a first input value (lex) that represents an excitation current of the alternator, and based on a second input value (ROT) that represents the rotational speed of the alternator. | 12-11-2008 |
| 20080244892 | Method For Producing a Shaft Pertaining to a Starter - A method for producing a shaft comprising a first section, a second channelled section, and a third section provided with an abutment shoulder surface for the starter, the method comprising the following steps: a) the three sections are machined; b) external grooves are produced in the second section; and c) at least one axial part of the starter shaft is subjected to a surface heating treatment. The invention is characterised in that the method comprises an additional step, prior to the heating treatment step, for reducing the residual mechanical stresses resulting from steps preceding the heating treatment. The additional step is a step for annealing, especially by induction heating, at least one axial part of the starter. | 10-09-2008 |
| 20080224563 | Method of Inserting an Undulating Winding Into a Stator of a Polyphase Rotating Electrical Machine, and Associated Stator - A method of inserting an undulating winding into an alternator stator. The method comprises the following steps consisting of shaping each phase winding into a succession of crenels comprising two lateral branches which are intended to be attached at a position for reception in a slot, positioning the windings on an insertion tool and inserting the turns into the slots of the stator in the reverse order to the winding order. The windings are wound around the insertion tool simultaneously, and the turns that succeed one another in a determined winding order belong alternatively to different windings. | 09-18-2008 |
| 20080211331 | Electronic Module for Rotating Electrical Machine - An electronic module for a rotary electrical machine which applies to any type of polyphase rotary electrical machine, synchronous or asynchronous, such as alternators or alternator starters, and also whether it is a case of electrical machines for motor vehicles and driven for example by belt, with cooling by air, liquid or any other solution that can be envisaged. | 09-04-2008 |
| 20080197727 | Heat Sink For Electronic Components of a Rotating Electric Machine - A dissipator for discharging heat from electronic components, the electronic components being intended for the functioning of a rotary electrical machine, the rotary electrical machine comprising a rear bearing, the dissipator comprising a top face and a bottom face integrating fins, wherein the dissipator is disposed between the rear bearing of the rotary electric machine and the electronic components, the bottom face integrating the fins coming opposite the rear bearing when the dissipator is disposed between the rear bearing of the rotary electrical machine and the electronic components. | 08-21-2008 |
| 20080197726 | Assembly of Electronic Components for Electrical Rotating Machine - An assembly of electronic components for a rotary electrical machine and power and signal interconnection pieces cooperating with the electronic components in order respectively to distribute power to the electronic components and convey control signals between electronic components for the functioning of the rotary electrical machine, wherein the electronic components are disposed in at least one module disposed on a first plane, the at least one module comprising a housing defined by a top face and a bottom face and at least three lateral faces, the signal interconnection piece is disposed on a second plane parallel to the first plane, and the power interconnection piece is disposed on a third plane parallel to the first plane, the power and signal interconnection pieces being independent of each other and independent of the at least one module. | 08-21-2008 |
