|Electricity: motive power systems patents - Monitor Patents|
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Electricity: motive power systems June invention type 06/09Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application. 06/25/2009 > patent applications in patent subcategories. invention type
20090160371 - Electric power tool: An electric power tool includes a motor, a reduction mechanism, a driving unit, a bearing unit, a housing, a speed changing unit, a power switch, and an operation detecting unit which detects a reduction ratio changing operation performed by the speed changing unit to control electric power supplied to the... Agent: Bacon & Thomas, PLLC
20090160372 - Driving device: In order to provide a driving device that is capable of eliminating sticking of a movable member due to nonuse, the driving device includes a drive shaft that reciprocates in axial directions with expansion and contraction of an electromechanical transducer element, a movable member that frictionally engages with the drive... Agent: Sidley Austin LLP
20090160373 - Electric power tool: An electric power tool “A” operates a working part 5 by repeating rotation of a motor 4 in a normal direction and in a reverse direction one or more times. The motor 4 includes a brushless motor. Sensors H for detecting a position of a rotor 15 are provided on... Agent: Drinker Biddle & Reath (dc)
20090160374 - Motor control device: A motor control device operable to rotate a motor based on an actuated direction of an operation knob of an operation switch in a direction corresponding to the actuated direction has direction selector switches provided corresponding to respective actuated directions of the operation knob, and open/close elements provided between the... Agent: Osha Liang L.L.P.
20090160375 - Motor controller for radio control: Provided is a motor controller for controlling a motor installed at an object such as an electric car operated using a transmitter. A manipulation of a manipulation tool of the transmitter is allocated for brake and reverse modes. A specific value of brake power contained in a signal demodulated by... Agent: Brundidge & Stanger, P.C.
20090160376 - Control system for multiphase rotary machines: In a control system designed to use a plurality of voltage vectors expressing a switching mode for a switching circuit to thereby control a difference between a current actually flowing through a multiphase rotary machine and a command current value therefor within an allowable range, a calculating unit calculates a... Agent: Nixon & Vanderhye, PC
20090160377 - Control system for multiphase rotary machines: A control system is designed to use a plurality of voltage vectors expressing a switching mode for a switching circuit to thereby control a difference between a current actually flowing through a multiphase rotary machine and a command current value therefor within an allowable range. The plurality of voltage vectors... Agent: Nixon & Vanderhye, PC
20090160381 - Apparatus for controlling torque of electric rotating machine: The apparatus is for controlling a torque of an electric rotating machine at a command torque by supplying command voltages in accordance with the command torque to a power conversion circuit driving the electrical rotating machine. The apparatus includes a detecting function of detecting an input voltage of the power... Agent: Nixon & Vanderhye, PC
20090160379 - Method for controlling a vehicle drive unit: A method for controlling a vehicle drive unit, the vehicle drive unit having at least two individual motors. A total actual torque is continuously compared with an allowable total torque, the total actual torque being calculated from individual actual torque values of the at least two individual motors, and the... Agent: Kenyon & Kenyon LLP
20090160380 - Motor drive device and control method thereof: A torque command (Tht) used in the calculation of a voltage command (Vht) of a voltage-up converter is generated by adding an upper limit value value (Tc_max) of damping control that can be set by a motor drive device with a target drive torque (Tbt). Accordingly, the torque command (Tht)... Agent: Oliff & Berridge, PLC
20090160382 - Motor controller of air conditioner: The present invention relates to a motor controller of an air conditioner, including a converter for converting a commercial AC power into a DC power, an inverter including a plurality of switching elements, the inverter receiving the DC power, converting the DC power into an AC power through a switching... Agent: Mckenna Long & Aldridge LLP
20090160378 - Motor controller of air conditioner: The present invention relates to a motor controller for air conditioner including a converter converting AC utility power into DC power; an inverter for compressor having a plurality of switching elements for inverter, the inverter converting the DC power into predetermined AC power by a switching operation to drive a... Agent: Mckenna Long & Aldridge LLP
20090160383 - Electric machine: A two-phase electric motor includes first and second coil groups and a magnet group. In the magnet group, N poles and S poles are disposed alternatively opposite the first and second coil groups. The first and second coil groups are disposed at positions that are out of phase with each... Agent: Harness, Dickey & Pierce, P.L.C
20090160384 - Electrical machine and method of controlling the same: An electrical machine having a stator and a rotor. The stator includes a core and a plurality of windings disposed on the core in a multiple-phase arrangement. The rotor is disposed adjacent to the stator to interact with the stator. A method of operating the motor includes applying a pulsed... Agent: Michael Best & Friedrich LLP
20090160385 - Motor controller: A motor controller that outputs a drive signal to a direct-current brush motor to drive the motor is provided. The motor controller includes a drive signal generating section that generates the drive signal. The drive signal generating section generates the drive signal by superimposing on a direct-current voltage a compensation... Agent: Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.
20090160386 - Electric drive device control system and method: An electric drive device control system includes an electric drive device and an electric control unit. The electric control unit stores a control-side correction current for compensating for a current deviation of the electric control unit and a drive-side correction current for compensating for an operation deviation of the electric... Agent: Nixon & Vanderhye, PC
20090160387 - Processing unit: The invention relates to a processing unit of a measuring signal related to conditions of an object controlled by power electronics. The processing unit comprises an interface with digital terminals, wherein the interface is provided with at least one terminal for a sensor which generates the measuring signal. Further, the... Agent: Swanson & Bratschun, L.L.C.
20090160388 - Machine tool or production machine with signal generation by means of direct drive and method for generating signals in such a machine: Machine (10) with an NC control unit (11) and at least one motor (12) which can be triggered by said control unit (11) and which forms an oscillatory system with its bearing and/or parts of the machine (10). The control unit (10) injects control variables (S1) into the motor (12)... Agent: Mccormick, Paulding & Huber LLP
20090160389 - Method and device for guiding the movement of a moveable machine element of a machine: The invention relates to a method for guiding the displacement of a displaceable machine element (18) in a machine, comprising the following steps: a) specification of a guide target variable (xtarg) that describes the desired displacement operation of the machine element (18); b) determination of a pilot actual variable (Mpilot)... Agent: Henry M Feiereisen, LLC Henry M Feiereisen
20090160390 - Method and apparatus for stepper motor stall detection: A detector device and a method for detecting a stall condition in a stepper motor, wherein the characteristics of the back EMF are identified directly from a waveform of the back EMF, specifically a first peak of the back EMF, a valley of the back EMF, and a second peak... Agent: Fraser Clemens Martin & Miller LLC
20090160391 - Hybrid permanent magnet motor: An electro-mechanical device that functions as a motor or a generator and methods for constructing and using such electro-mechanical device are provided. The electro-mechanical device features permanent magnets placed in a magnetically attracting manner and inter-dispersed between control coils. The control coils are energized to create a flux opposing the... Agent: Wilmerhale/new York
20090160392 - Virtual moving air gap for an axial flux permanent magnet motor with dual stators: An axial flux electric motor comprising a rotor and a first and second stator. The first and second stators have a first and second air gap located between the first and second stators and the rotor, respectively, and the second air gap is greater than the first gap. In one... Agent: Polster, Lieder, Woodruff & Lucchesi
20090160393 - Starting control apparatus and method for motor: Entry of a synchronous speed of a rotor can be facilitated by increasing a starting torque by adjusting a magnetization application time for magnetizing the rotor according to whether or not a starting capacitor is used. The present invention includes: a control unit that outputs a control signal for controlling... Agent: Mckenna Long & Aldridge LLP
20090160394 - Sensorless control apparatus and method for induction motor: A control apparatus for an induction motor is provided and includes a rotating-speed locked loop and a feed-forward magnetizing-axis angular position emulator. The rotating-speed locked loop emulates a speed control loop of the induction motor for producing an emulated torque current and an emulated rotor angular speed. The feed-forward magnetizing-axis... Agent: Volpe And Koenig, P.C.06/18/2009 > patent applications in patent subcategories. invention type
20090153080 - Ac power driving apparatus: An AC power driving apparatus includes at least a DC input end, a DC motor, a plurality of AC output coils, a plurality of AC motors, a power chargeback device and a plurality of wires. The DC input end is connected to one side of the DC motor through the... Agent: Frenkel & Associates, P.C.
20090153081 - Method for adjusting a piston in a linear compressor: A method for operating a linear compressor including a linear drive with a stator and a rotor configured for displacement by a magnetic field of the stator against a spring force, and a compression chamber which is delimited by a displaceable piston coupled to the rotor during the operation of... Agent: Bsh Home Appliances Corporation Intellectual Property Department
20090153082 - Interlocking device for controlling clockwise and counterclockwise rotation of a motor: An interlocking device for controlling clockwise and counterclockwise rotation of a motor is connected with a clockwise rotation module and a counterclockwise rotation module at both ends thereof to form a loop by cooperating with a power-supply terminal and an earth terminal. The clockwise rotation module includes a clockwise rotation... Agent: Dr. Banger Shia
20090153083 - Method of operating a brushless motor wherein open loop and closed loop controllers utilize different commutation methods: A motor control is provided with both open loop and closed loop controllers. The open loop and closed loop controllers provide commutation signals back to gate drives for an inverter, wherein the commutation signals utilize sinusoidal signals in open loop control, and utilize six step commutation in closed loop control.... Agent: Carlson, Gaskey & Olds, P.C.
20090153084 - Motor drive device, method, and cooling device using the same: In the motor drive apparatus, a Hall element outputs a first sinusoidal signal and a second sinusoidal signal, of mutually opposite phases, in accordance with rotor position. A hysteresis comparator compares the first sinusoidal signal and the second sinusoidal signal outputted from the Hall element, and outputs a rectangular wave... Agent: Cantor Colburn, LLP
20090153085 - Multi-phase, multi-frequency controller: Reference signals are combined with a chop frequency signal in a pulse width modulator (PWM) to provide plural inputs to a multi-phase H-bridge amplifier. Also provided to the bridge amplifier is a high voltage DC input which is converted by the pulsed inputs to the bridge amplifier to a variable... Agent: Evan Law Group LLC And The Boeing Company
20090153086 - Motor drive apparatus: The present invention provides a motor drive apparatus which improves a trade-off relation between a stable position detection and noise at its driving. A sensorless drive operation circuit calculates by operation a zero cross point (point p) of a voltage of a position detection phase at the next interval, using... Agent: Miles & Stockbridge PC
20090153087 - Method for controlling motor torque in hybrid electric vehicle: The present invention provides a method for controlling motor torque in a hybrid electric vehicle, which can reduce current control mapping time and simplify control algorithm by providing a torque control compensation logic against a change in temperature of a motor (interior permanent magnet synchronous motor) of the hybrid electric... Agent: Edwards Angell Palmer & Dodge LLP
20090153088 - Method and device for temperature limitation according to current and/or voltage: The invention relates to a method for temperature limitation according to the current and/or voltage, for an actuating device (10) associated with an electric motor (M), especially a fan regulator (12) of a motor vehicle, the temperature limitation being carried out according to at least one operating parameter of the... Agent: Michael J. Striker
20090153089 - Apparatus for monitoring of brushes, in particular slipring or commutator brushes, on electrical machines: An apparatus is disclosed for monitoring brushes, such as slipring or commutator brushes, on electrical machines. At least one electronic sensor is configured to be arranged in or on a brush apparatus of an electrical machine such that an electrical supply power can be locally drawn directly from an electromagnetic... Agent: Buchanan, Ingersoll & Rooney PC
20090153090 - Motor controller: A motor controller that outputs a drive signal to a direct-current motor to drive the motor is provided. The motor controller includes a drive circuit that generates the drive signal. The drive circuit superimposes on a direct-current voltage an alternating-current component having a frequency in the audible frequency range of... Agent: Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.
20090153091 - Image formation apparatus: An error detector determines whether or not there is a frequency error. In a case where it is determined that there is the frequency error, the error detector further determines whether or not the frequency error stays within a targeted error range. In a case where it is determined that... Agent: Morrison & Foerster LLP
20090153092 - Numerical controller having control mode switching function: A pulse distribution unit notifies a mode control/instruction unit of an output start signal Sa that notifies of the start of output of a position command signal. The mode control/instruction unit outputs a mode setting signal, a speed command signal, and a compensation pulse Sc to an axis control unit.... Agent: Drinker Biddle & Reath (dc)
20090153093 - Method and controller for detecting a stall condition in a stepping motor during micro-stepping: A method is provided for detecting a stall condition in a stepping motor. The stepping motor has two coils and a rotor, and is micro-stepped by substantially continuously driving both of the two coils with out-of-phase time varying voltages. The method includes stepping the stepping motor to a next micro-step.... Agent: Freescale Semiconductor, Inc. Law Department
20090153094 - Drive: The invention relates to a drive for simmering apparatus comprising an electric motor and a power converter arrangement which arrangement includes a rectifier unit, an intermediate circuit unit, an inverter unit and an electronic control unit wherein the inverter unit, the electronic control unit and the electric motor are combined... Agent: Patent Central LLC Stephan A. Pendorf
20090153095 - Driving circuit for single-phase switched reluctance motor and driving method thereof: Disclosed are a driving circuit for a single-phase SRM and a driving method thereof. The driving circuit for the single-phase SRM includes a switched reluctance motor, a voltage source which supplies energy to the switched reluctance motor, and an inverter circuit which is connected to the switched reluctance motor in... Agent: John W Renner Renner Otto Boisselle & Sklar06/11/2009 > patent applications in patent subcategories. invention type
20090146588 - Booster converter circuit for vehicles: An object of the invention is to limit a current flowing in a booster converter circuit for a vehicle within a predetermined range. In the booster converter circuit for a vehicle including a battery that outputs a DC voltage; a switching unit having a switching element to be controlled to... Agent: Kenyon & Kenyon LLP
20090146590 - Controller of multi-phase electric motor: A controller of a multi-phase electric motor includes a drive section for driving the multi-phase electric motor; a single current detection section for detecting a current value of the multi-phase electric motor, a PWM signal generation section for generating plural PWM signals of each phase within one control period based... Agent: Osha Liang L.L.P.
20090146589 - Motor control device and vehicle including the same: A current instruction generation unit generates a d-axis current instruction and a q-axis current instruction based on a torque instruction for an AC motor, using a map in which a current instruction capable of lowering noise (vibration and sound noise) (low-noise current instruction) generated from the AC motor is determined... Agent: Oliff & Berridge, PLC
20090146591 - Motor controller of air conditioner: The present invention relates to a motor controller of an air conditioner, including an inverter including a plurality of switching elements and adapted to convert a DC voltage, input through switching operations of the switching elements, into an AC voltage and supply the converted voltage to a motor, a power... Agent: Mckenna Long & Aldridge LLP
20090146592 - Position sensorless controller for permanent magnet motor: In a calculation for estimating axis error in a permanent magnet motor, a d-axis commanded voltage value is added to the product of three signals, which are a q-axis detected current value or commanded current value, an inductance value, and an estimated speed value, and then the resulting value is... Agent: Antonelli, Terry, Stout & Kraus, LLP
20090146593 - Motor controller of air conditioner: The present invention relates to a motor controller for air conditioner including a converter having at least one switching element for converter, the converter converting AC utility power into DC power by a switching operation of the switching element; an inverter having at least one switching element for inverter, the... Agent: Mckenna Long & Aldridge LLP
20090146594 - Inverter system for vehicle-mounted air conditioner: The present invention has an object to provide an inverter system for a vehicle-mounted air conditioner that prevents noise from entering a control circuit and allows high speed communication. A motor control microcomputer 24 is isolated from a gate circuit 22, and communication therebetween is performed via a photocoupler 80.... Agent: Westerman, Hattori, Daniels & Adrian, LLP
20090146595 - Device for supplying a plurality of multiphase electric loads: The present invention relates to a device for supplying a plurality of multiphase electric loads, wherein the device includes at least one multilevel pulse-controlled inverter which comprises at least one decided and at least one multiple semiconductor switch.... Agent: Dilworth & Barrese, LLP
20090146596 - Voltage clamping and energy recovery circuits: A circuit for use with a stator winding of a rotating or linear electrical machine, the stator winding having a number of coils linked by the same number of points of common coupling, includes an electronic commutator circuit having the same number of switching stages, each connected between a respective... Agent: Kirschstein, Israel, Schiffmiller & Pieroni, P.C.
20090146597 - Method for detecting the position of a rotor: The invention relates to a method for determining the position of a rotor (11) of an electric motor (9) comprising several stator blocks, in particular an EC motor (10), whereby several magnetic axes (d, q) are assigned to said rotor. According to the invention, a voltage is applied alternately to... Agent: Michael J. Striker
20090146598 - Brushless motor: A brushless motor driven by a sensorless driving circuit includes a rotating body capable of being rotated about a center axis; a rotor magnet arranged coaxially with the rotating body; a stator disposed opposite the rotor magnet; and at least one coil wound around the stator. The brushless motor is... Agent: Nidec Corporation C/o Keating & Bennett, LLP
20090146599 - System and method for motor fault detection using stator current noise cancellation: A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating... Agent: Ziolkowski Patent Solutions Group, Sc (eaton)
20090146600 - Intelligent foot of humanoid robot: An intelligent foot of a humanoid robot, which enables the robot to safely walk in balance even on the irregular ground, is disclosed. The walking robot's foot includes a backpart unit with a leg which is rotatably installed at the center thereof, and a forepart unit which is rotatably connected... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.
20090146601 - Automation systems diagnostics and predictive failure detection: The present invention discloses a system and method for monitoring and diagnosing a robot mechanism. This requires adding intelligence to the diagnostics by parameters of physical robot arm linkages respecting component relative rotation or load transfer; storing rotation or translation relationship parameters characteristic of resonant frequencies between at least one... Agent: Walt Froloff
20090146602 - Driving apparatus: [Means for Solving Problems] An automatic focus camera unit 10, comprises; a piezoelectric element 13a; a driving shaft 13b to be driven by the piezoelectric element 13a; a moving unit 13c to be moved with respect to the driving shaft 13b by a friction force caused by the driving shaft... Agent: Pearne & Gordon LLP
20090146603 - Mvdc power transmission system for sub-sea loads: A system for the transmission of a direct current (DC) at a medium voltage level includes a system DC link configured to carry power from a source to a load module. The load module includes a DC-to-DC voltage step-down converter, a DC-to-AC inverter coupled downstream to the DC-to-DC voltage step-down... Agent: General Electric Company Global Research06/04/2009 > patent applications in patent subcategories. invention type
20090140673 - Electric power steering system: In a power supply apparatus 40, a power supply circuit is formed by a primary power supply circuit 50 which includes a high-voltage battery 51 and a step-down circuit 55 for stepping down the voltage of the high-voltage battery 51, and a secondary power supply circuit 60 which includes a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.
20090140674 - Control apparatus for ac motor: It is attained by being provided with a motor constant calculation unit for calculating electric constants of a motor, and by correcting setting values of electric constants defined on one of the axes of two orthogonal axes, by a functional expression using a state variable defined on the same axis,... Agent: Antonelli, Terry, Stout & Kraus, LLP
20090140676 - Method and system for sensorless control of an electric motor: Methods and systems for controlling an electric motor are provided. A signal comprising at least first and second cycles is provided to the electric motor. A first flux value for the electric motor associated with the first cycle of the signal is calculated. A second flux value for the electric... Agent: Ingrassia Fisher & Lorenz, P.C. (gm)
20090140677 - Motor drive circuit, fan motor, electronic device, and notebook personal computer: A motor drive circuit comprising: a first transistor and a second transistor connected in series, a voltage of a connection point between the first transistor and the second transistor being a drive voltage applied to one end of a motor coil; an operational amplifier configured to control the first transistor... Agent: SocalIPLaw Group LLP
20090140678 - Torque ripple suppressor of engine: A torque ripple suppressor (50) includes: an SR motor (20) coupled to an engine; a rotary position detector (24) that detects a rotary position of the SR motor (20); a pulse interval calculator (41) that calculates output interval of pulses output from the pulse interval calculator (24); an average pulse... Agent: Frishauf, Holtz, Goodman & Chick, PC
20090140675 - Door drive: The present invention relates to a door drive comprising electrically operated components which are supplied with electrical energy via a mains connection. In accordance with the invention, a control and an electrical energy store are provided, with the control separating the door drive from the mains and the electrical energy... Agent: Dilworth & Barrese, LLP
20090140679 - Tertiary lock system power unit: A system for moving an aircraft thrust reverser component includes a power drive unit, a thrust reverser actuator assembly, and a tertiary lock system. The power drive unit is operable to rotate and supply a rotational drive force. The thrust reverser actuator assembly receives the rotational drive force from the... Agent: Honeywell International Inc.
20090140680 - Motor controller of air conditioner: The present invention relates to a motor controller, including a converter for converting commercial AC power into DC power, an inverter including a plurality of switching elements, the inverter receiving the DC power, converting the DC power into AC power of a specific frequency through switching operations, and supplying the... Agent: Mckenna Long & Aldridge LLP
20090140681 - Sensorless measurement of the rotation frequency of a rotor of an asynchronous machine: The present invention relates to a device (20) and a method for sensorless measuring a mechanical rotor frequency of a rotor (6) of an asynchronous machine (40), wherein the rotor (6) has a predetermined defect and the asynchronous machine (40) has a fixed number of pairs of poles. The asynchronous... Agent: Philips Intellectual Property & Standards
20090140682 - Motor control unit, motor control method and image forming apparatus: Time information indicates time required for reflecting a speed control indicating value actually on the rotation speed of the motor, the speed control indicating value being read by a motor driving part and then, being reflected on the rotation speed of the motor by the motor driving part. the speed... Agent: Harness, Dickey & Pierce, P.L.C
20090140683 - Rehabilitation robot and tutorial learning method therefor: The present invention relates to a rehabilitation robot and a tutorial learning method for the rehabilitation robot. The rehabilitation robot comprises a robotic device, a rehabilitation mode control unit, and a driving unit. The robotic device comprises at least a motor capable of controlling the joints of the robotic device.... Agent: Wpat, PC
20090140684 - Numerical controller for controlling a five-axis machining apparatus: A numerical controller capable of moving a tool end point position to an accurate position in a five-axis machining apparatus. Compensation amounts are set, which correspond to respective ones of a linear axis-dependent translational error, a rotary axis-dependent translational error, a linear axis-dependent rotational error, and a rotary axis-dependent rotational... Agent: Drinker Biddle & Reath (dc)
20090140685 - Method and device for positioning a movable part in a test system: The invention relates to a method and a device for the positioning of a displaceable component in an examining system, particularly a measuring or an analytic system wherein, during the process, the displaceable component is displaced with the support of an actuating element coupled to the displaceable component from a... Agent: Smith Patent Office
20090140686 - Method for controlling an electric motor, control unit and electric motor: For ensuring high-precision control of a planar motor (1) comprising a magnet (2) and j coils (3), j=1 . . . N, wherein currents T7 can flow through the coils (3) such that a force and a moment are generated that interact with the magnet (2), it has been proposed... Agent: Philips Intellectual Property & Standards
20090140687 - Hobby service having enhanced operational performance: An apparatus is disclosed for enhancing the operational performance of a servo. The apparatus comprises an auxiliary shaft that is independent and displaced from the servo and an actuation sensor that is operably coupled to the auxiliary shaft. The auxiliary shaft is configured to be driven by a motor associated... Agent: Westman Champlin & Kelly, P.A.
20090140688 - Inverter device: This invention provides an inverter device that can detect a step-out state of an AC motor by a simple process without depending on a rotation speed of the AC motor and also surely hold an abnormal state in the step-out state of the AC motor. The inverter device 1 includes... Agent: Sughrue-265550Previous industry: Electric lamp and discharge devices: systems
Next industry: Electricity: battery or capacitor charging or discharging
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