Electricity: motive power systems inventions 04/07

20070090779 - Frequency control circuit, motor drive apparatus, frequency control method, control method of motor drive apparatus, and program allowing computer to execute control method: A frequency control circuit including a control circuit for setting a set value, an adding circuit for adding the set value per unit time and effecting counting based on the adding result, and a signal output circuit for outputting an alternating signal of a cycle corresponding to the time necessary... Agent: Canon U.s.a. Inc. Intellectual Property Division

20070090780 - Series motor and method of controlling the same: A circuit for a series motor for a power tool is disclosed, wherein reliable switching is achieved by means of two electronic switches, without the use of a mechanically disconnecting switch. To this end, two electronic switches, preferably triacs, are preferably connected in series to each other, the voltage drop... Agent: St. Onge Steward Johnston & Reens, LLC

20070090781 - Barrier movement operator having obstruction detection: A barrier movement operator includes an A.C. motor having a rotatable rotor connected to a barrier for movement thereof. A sensing apparatus generates motor signals representing an operational variable of the motor. The movement of the barrier is controlled by a controller, which responds to the motor signals by selectively... Agent: Fitch Even Tabin And Flannery

20070090782 - Control apparatus of electric power steering apparatus: The invention relates to a control apparatus of an electric power steering apparatus structured such as to apply a steering assist force generated by a n-phase motor to a steering system of a vehicle, the control apparatus is provided with at least (n−1) numbers of current detecting means for detecting... Agent: Sughrue Mion, PLLC

20070090783 - Method for braking a synchronous machine: A method is proposed for braking a synchronous machine 1, with the armature windings (u, v, w) of the synchronous machine 1 being short-circuited, optionally by interposing at least one braking resistor. In order to keep the braking moment constant over virtually the entire speed range it is proposed that... Agent: William Collard Collard & Roe, P.C.

20070090784 - Method and control circuit for controlling phase splitting start single-phase induction motor: After a power source is turned on, the motor stars by feeding a current to the auxiliary wiring for a first predetermined period. Then, a voltage induced in the auxiliary wiring is detected. Whether or not the detected inducted voltage is lower than a predetermined voltage is judged. The detected... Agent: Mark D. Saralino (general) Renner, Otto, Boisselle & Sklar, LLP

20070090785 - Audible noise reduction for single current shunt platform: A method and system for reducing audible motor noise in a system for reconstructing motor phase current from a DC bus current comprising current pulses on a DC bus in a PWM inverter motor drive system having a PWM cycle, and for controlling the motor, which forms a command voltage... Agent: Ostrolenk Faber Gerb & Soffen

20070085495 - Vibrator and protable terminal device mounted with the vibrator: In order to improve the reliability of an electrical connection between a power supply terminal of a vibrator and an electrode of a circuit board and to improve the efficiency of mounting the vibrator on the circuit board, the power supply terminal is made from a torsion coil spring and... Agent: Nixon Peabody, LLP

20070085497 - Method for operating drive train side components of a motor vehicle: A method for operating power train side components of a motor vehicle. Using a control device of a motor, at least one motor parameter is issued and delivered via a databus to at least one control device of one other power drive side component working independently of the motor control... Agent: Davis & Bujold, P.l.l.c.

20070085496 - Powered surgical tool with control module that contains a sensor for remotely monitoring the tool power generating unit: A powered surgical tool with a housing that contains a power generating unit such as a motor. A control module is disposed in a shell that is mounted in the housing. The control module contains a control circuit for regulating the actuation of the power generating unit. The power generating... Agent: Intel. Prop./ Rnd Stryker Corporation

20070085500 - Apparatus and method for controlling brushless dc motor: Disclosed is a control apparatus for a brushless DC motor, which has a rotor with n poles (where n is a natural number) that rotates due to a supply current with m phases (where m is a natural number) applied to a stator, controlling the number of output rotations of... Agent: Staas & Halsey LLP

20070085498 - Method and apparatus to control a variable speed motor: A thermostat transducer module includes a processor, at least one A/D conversion circuit interfaced to the processor, and at least one output level conversion circuit interfaced to the processor. The processor is configured to receive signals originating at a thermostat through the at least one A/D conversion circuit, analyze the... Agent: Patrick W. Rasche Armstrong Teasdale LLP

20070085499 - Rotor position detection of a brushless dc motor: A method of determining the angular position of the rotor of a brushless direct current motor having a stator with multi-phase windings, control circuitry that provides excitations switched after one another to the motor phases such that the excitations produce stator flux vectors lying in different directions in the full... Agent: Crowell & Moring LLP Intellectual Property Group

20070085501 - Compressor and a driving method thereof: A compressor having a sensorless motor and a driving method thereof. The compressor includes a sensorless motor having a rotation shaft connected to a rotator, a piston for performing a compression stroke and an intake stroke between a top dead center and a bottom dead center thereof, and a crank... Agent: Staas & Halsey LLP

20070085502 - Braking system and method: The present invention provides a system and method for stopping equipment. The system is an automatic dynamic braking system using color recognition. The automatic braking system comprises a color recognition sensor coupled to a control system. In use, the control system is operably connected to potentially hazardous equipment. The color... Agent: Cargill, Incorporated

20070085503 - Circuit for driving an appliance for treating laundry: A circuit for driving an appliance for treating laundry, includes a motor circuit having an AC motor, and a door-locking circuit. The motor circuit and the door-locking circuit may be driven by a single common electronic switching element.... Agent: Lerner Greenberg Stemer LLP

20070085504 - Method and device for controlling wiper: A wiper control method and a wiper control device which adjusts a wiping determining condition for determining the wiping state of a wiper according to a driving scene are provided. The driving scene is determined based on comprehensive situation determination from vehicle state information such as driving, stop, etc. and... Agent: Ratnerprestia

20070085505 - Drive control apparatus: A drive control apparatus including a feed-forward operation amount generation device, a feed-back operation amount generation device, a feed-forward correction amount generation device and a feed-forward operation amount correction device is provided. The drive control apparatus is configured to input an input operation amount, which is obtained by adding a... Agent: Banner & Witcoff, Ltd. Attorneys For Client Nos. 0166889, 006760

20070085506 - Servo control system: A servo control system having a proportional (P) or a proportional plus integral (PI) position controller, which output signal represents an input speed reference signal for a speed close loop system with a speed controller detecting a speed deviation, derived from a speed feedback loop, which output signal represents an... Agent: Vladimir Oks

20070085507 - Field weakening vector controller for permanent magnet synchronous motor and control module: A stable motor control characteristics can be accomplished by correcting a q-axis current command value by a product of a d-axis current command value (or a detected current value) calculated by field weakening control and a sine signal which is a phase difference between the reference axis of control and... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070085508 - Method of estimating magnetic pole position in motor and apparatus of controlling the motor based on the estimated position: A magnetic pole position in a synchronous motor having salient poles is estimated from an instructed voltage applied to the motor, a current generated from the instructed voltage and parameters. To estimate the position substantially matching with a true magnetic pole position, a phase matching voltage having a phase matching... Agent: Oliff & Berridge, PLC

20070085509 - Method for distributing current to the rectifier valves in inverting converters: A method is proposed for distributing current to the existing current directing valves or switches in the inverting converter of adjustment drives with synchronous servo-motors when the end position of the adjustment drive is reached at a time when the torque or force load is high in which the current... Agent: Davis & Bujold, P.l.l.c.

20070080653 - Heat dissipation system: A heat dissipation system includes a fan module and a client device. The fan module includes at least two fans, each of which has a controller and a sensor. The client device is electrically connected to the controllers of the fans and generates a first control request and a second... Agent: Birch Stewart Kolasch & Birch

20070080654 - Brushless dc motor control apparatus and control method thereof: The invention relates to a brushless DC motor control apparatus controlling the number of revolutions of a brushless DC motor having a rotor with n poles (where n is a natural number) that rotates due to a supply current with m phases (where m is a natural number) supplied to... Agent: Stanzione & Kim, LLP

20070080655 - Method, apparatus and article for detecting rotor position: A system, method and article for detecting a polarity of a rotor in a motor and/or a generator. In one embodiment, a rotor polarity detection signal is applied and a response thereto is evaluated to determine whether an estimated position of the rotor is correct.... Agent: Seed Intellectual Property Law Group PLLC

20070080656 - Wheelchair with motor speed and torque control: A method varies motor torque inversely as a function of speed.... Agent: Macmillan Sobanski & Todd, LLC

20070080657 - Vehicle seat arrangement with an electric adjustment mechanism: Vehicle seat arrangement includes an electric adjustment mechanism, a direct current motor for adjusting a vehicle seat component, with direct current terminals configured to receive a motor current. a control device for controlling or regulating direct current motor, which applies direct current to the direct current terminals based upon adjustment... Agent: Shlesinger, Arkwright & Garvey LLP

20070080658 - Robot for surgical applications: The present invention provides a micro-robot for use inside the body during minimally-invasive surgery. The micro-robot includes an imaging devices, a manipulator, and in some embodiments a sensor.... Agent: Dorsey & Whitney LLP Intellectual Property Department

20070080659 - Motor driving apparatus: A motor driving apparatus makes a carrier signal of an inverter be synchronized with a carrier signal of a DC/DC converter, and determines a phase difference between both the carrier signals based on a ratio of an input voltage inputted to the DC/DC converter and an input voltage inputted to... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070075655 - Constant speed barrier operator: A constant speed barrier operator comprises a controller, a memory unit, a potentiometer, a pulse counter, and a motor control. The potentiometer and pulse counter monitor the position and speed of an access barrier. As the access barrier is moved between open and closed positions the controller samples the position... Agent: Renner, Kenner, Greive, Bobak, Taylor & Weber

20070075657 - Method of selectable simultaneous/sequential motor drive in a multiple drive circuit including failure detection: A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the motors, motor position sensing circuitry, and motor control circuitry. The system and method provide for improved motor current waveform sensing that... Agent: Delphi Technologies, Inc.

20070075656 - Position detection and external driver multiplexing system for dc motors: A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the motors, motor position sensing circuitry, and motor control circuitry. The system and method provide for improved motor current waveform sensing that... Agent: Delphi Technologies, Inc.

20070075658 - Motor control apparatus: A motor control apparatus includes a first FG pattern for generating a first induced voltage attendant upon rotation of the rotor of a motor; a second FG pattern for generating a second induced voltage due to noise; a differential amplifier for differentially amplifying the first and second induced voltages, which... Agent: Rossi, Kimms & Mcdowell LLP.

20070075659 - Control apparatus for electrically-powered vehicle: A control apparatus for an electrically-powered vehicle that includes an electrical motor, a motor control unit, and a traction control unit that controls a drive force so as to suppress spinning of driving wheels based on an operation request, includes: a driver requesting torque calculation unit that calculates a driver... Agent: Lahive & Cockfield, LLP

20070075662 - Method for controlling hydraulic brushless motor and controlling device: The method for controlling the hydraulic brushless motor operates the hydraulic brushless motor by switching the conduction timing to a plurality of switching elements. The method for controlling the hydraulic brushless motor includes detecting the oil temperature and advancing the conduction start timing when the oil temperature is lower than... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070075660 - Voltage-sensitive oscillator frequency for rotor position detection scheme: A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the motors, motor position sensing circuitry, and motor control circuitry. The system and method provide for improved motor current waveform sensing that... Agent: Delphi Technologies, Inc.

20070075661 - Winding control improvement of drive motor for hybrid electric vehicle: This invention uses winding connection control and bidirectional on/off switches to supply reasonable level voltage to a motor without a booster. This invention also can raise the speed of the motor to double (or higher) of its original speed in order to free up the rooms in the slots for... Agent: Ut-battelle, LLC Office Of Intellectual Property

20070075663 - Method for controlling fan: A method for controlling a fan is provided for adjusting the rotational speed of a fan. The method includes adjusting the rotational speed of the fan from a first mode value to a range of rotational speed variation, wherein the upper bound of the range of rotational speed variation is... Agent: Jianq Chyun Intellectual Property Office

20070075664 - Device and method for controlling motor: A motor control method/device is provided in which a speed change during a deceleration period is stabilized in performing a speed feedback control of a motor. In the motor control method/device, the speed feedback control is performed such that a speed of a body driven by the motor is consistent... Agent: Banner & Witcoff, Ltd. Attorneys For Client Nos. 0166889, 006760

20070075665 - Motorized closure operating device with electronic control system: An operating device for an overhead closure which comprises a motor, operatively connected to the closure for opening and closing the closure, and at least one sensor unit mountable either the closure or a support surface bordering the closure. The sensor unit is operable to detect the presence of an... Agent: Ogilvy Renault LLP

20070075667 - Belt driven centrifugal separator with multi-stage, belt deterioration alerting display: In a centrifugal separator of the type in which driving power of a motor is transmitted to a rotor via a power transmission mechanism, such as a belt, a motor-rotation signal frequency fm and a rotor-rotation signal frequency fr are computed, on the basis of which a frequency ratio A... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070075666 - Rotation drive system having a speed reduction device with elastic bodies: An input shaft speed signal for rotating a motor at a predetermined rotational speed is output from a rotation control unit to the motor. A rotational speed reduced by a speed reduction device with elastic bodies is detected by an output rotation sensor. A CPU obtains slippage by calculating a... Agent: Ditthavong & Mori, P.C.

20070075668 - Method for power control of an electric motor: The invention relates to a method for power control of an electric motor, in particular a motor for driving the suction fan of a vacuum cleaner connected to an AC mains power supply. The power control is effected by varying the phase angle of the electric alternating quantity supplied to... Agent: Pearne & Gordon LLP

20070075669 - System and method for determining barrier motor parameters without using sensors: A barrier operator comprises a first measuring apparatus for measuring a current used by a direct current (dc) motor to move a barrier and a second measuring apparatus for measuring a generated voltage of the dc motor. A controller is coupled to the first measuring apparatus and the second measuring... Agent: Fitch Even Tabin And Flannery

20070075670 - Apparatus and method for generating acceleration profile for controlling object using optimized waveform shaping: A technique is disclosed for generating an acceleration profile indicative of a time history of an acceleration of a controlled object, to thereby generate at least one of a target velocity profile indicative of a time history of a target velocity of the controlled object and a target position profile... Agent: Banner & Witcoff, Ltd. Attorneys For Client Nos. 0166889, 006760

20070075671 - Method and apparatus for detecting excitation position of srm by comparsion of detected current: Disclosed is a method and apparatus for detecting an excitation position of an SRM by comparison of detected currents. The method includes detecting a current by applying a first test voltage to each phase of the SRM, detecting a current by applying a second test voltage to each phase, determining... Agent: J.c. Patents

20070075672 - Rotor position detection in an electrical machine: An electrical machine is controlled with a combination of a physical rotor position transducer and a software position detection algorithm. The physical transducer has a reduced number of sensors, so that it will only give accurate information at high speeds. The software algorithm is executed by a low-cost processor which... Agent: Haynes And Boone, LLP

20070075673 - Brushless synchronous motor and driving control apparatus therefor: A brushless synchronous motor is provided in a simple configuration and at a low cost. The brushless synchronous motor comprises a rotor having salient magnets arranged in a circumferential direction, a stator having driving magnetic poles arranged in the circumferential direction, and an exciting coil wound around each driving magnetic... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070075674 - Motor control apparatus, motor control circuit, and method thereof: A motor control apparatus for controlling a motor based on an output from a sensor includes a storage unit storing a value according to an excitation power supply to excite the sensor, a PWM output unit outputting a PWM output signal having a pulse width modulated to have a duty... Agent: Mcginn Intellectual Property Law Group, PLLC

20070075675 - Control circuit of rotational speed of a fan: A control circuit of rotational speed of a fan is provided, wherein by a switching of a switch unit, a PWM (Pulse Wide Modulation) unit can output a sampling pulse whose period is changing. A voltage is also changing following the period after taking a sample to an AC voltage... Agent: Troxell Law Office PLLC