Electricity: motive power systems inventions 11/07

20070273309 - Radio-frequency controlled motorized roller shade: A roller shade structure controlled by radio-frequency (RF) wireless communication from a control device comprises a roller tube and a conductive enclosure. The conductive enclosure is mounted inside the roller tube for enclosing a motor drive system having a motor operable to controllably rotate the roller tube in a direction... Agent: Ostrolenk Faber Gerb & Soffen

20070273310 - Power system comprising several synchronous machines synchronously self-controlled by a converter and control method for such a system: The invention relates to a power system comprising at least two self-controlled synchronous machines (MS1, MS2) operating in parallel synchronously, a central three-phase converter (20; 50) to which all these machines are connected in parallel, at least two rotor position sensors (23, 24; 45, 46, 47, 48), characterised in that... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20070273311 - Electric household food preparation appliance which is designed to be on standby and reactive: The invention relates to an electric household food preparation appliance comprising a control/command device consisting of: means for evaluating the load or resisting torque (C1, C2, C3) applied to the motor; and means for automatically switching the operation of the appliance from a first mode to a second mode when... Agent: Browdy And Neimark, P.l.l.c. 624 Ninth Street, Nw

20070273312 - Semiconductor device for motor driving and motor having the same, motor driving apparatus and air conditioner: A motor driving semiconductor device has: six switching elements for driving a three-phase motor; three output terminals for applying output voltages to three terminals of coils of the three-phase motor; drive circuits for driving the six switching elements; and six control signal input terminals for receiving six control signals for... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070273313 - Wiper control method: [MEANS FOR SOLVING PROBLEMS] A wiper arm is reciprocated for wiping by rotating a motor forward and reversely, and the operation of the wiper arm is controlled according to an absolute position signal outputted when the wiper arm exists at a predetermined position and a motor pulse outputted as the... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070273314 - Method for braking an electromotor and electrical drive: Disclosed is a method for braking or stopping an electromotor which can be operated with direct current, such as a brushless direct current motor. If there is an error in the electromotor or in the electronic or mechanical units connected to the electromotor, the presence of definite error states is... Agent: Craig Hallacher Continental Teves, Inc.

20070273315 - Drive and brake: A drive, including at least a brake and an electromotor, is connected to an output stage with the aid of supply lines, the brake being supplied from a brake control, the brake control being connected to the supply lines for its supply, via capacitors.... Agent: Kenyon & Kenyon LLP

20070273316 - Rotation brake method and device for working machine: To stop, in an emergency, a revolving superstructure quickly from rotating while preventing damage of a mechanical brake. A revolving superstructure is driven swiveling using a permanent magnetic-type swiveling electric motor; in an emergency, such as a malfunction in a drive or control system for the swiveling electric motor, allowing... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20070273318 - Apparatus on a spinning room machine for monitoring an electric drive motor: An apparatus on a spinning room machine, especially a spinning preparation machine, is arranged for monitoring an electric drive motor, which is connected to an electronic speed-setting and/or regulating device, a rotating operating element being connected to the drive motor. In order to monitor the drive motor so that no... Agent: Venable LLP

20070273317 - Control apparatus of electric power steering apparatus: In a control apparatus of an electric power steering apparatus constructed so as to calculate a current command value of a motor for applying steering assist force to a steering mechanism based on steering torque and a vehicle speed and drive and control the motor based on the current command... Agent: Sughrue-265550

20070273319 - Industrial robot: A power supply system for an industrial robot. The power supply includes a transmitting part including a first coil and a first converter for producing an alternating magnetic field from the first coil. The power supply also includes a receiving part including a second coil for providing an alternating current... Agent: Venable LLP

20070273320 - Legged mobile robot: In a legged mobile robot having a body and legs connected to the body, a seating aid is provided at its body so as to enable to sit on a seat. With this, the space occupied by the robot can be decreased to reduce space during storage and transport, and... Agent: Squire, Sanders & Dempsey L.L.P.

20070273321 - Stepping-motor control apparatus and method of controlling the apparatus: An excitation phase pattern used to manage only the number of phases being excited in W1-2 phase excitation, and an excitation phase pattern used to manage only the number of phases being excited in 2W1-2-phase excitation are generated. The excitation phase patterns thus generated are monitored on the monitor.... Agent: SocalIPLaw Group LLP

20070273322 - Method, apparatus, and system for drive control, power conversion, and start-up control in an srm or pmbdcm drive system: A power converter for a switched reluctance motor or a permanent magnet brushless direct current (dc) motor may include first and second partial circuits for forming multiple conduction circuits in cooperation with first and second phase windings of the motor. The controller also includes a switch operable to open and... Agent: Stevens Davis Miller & Mosher, LLP

20070273323 - Drive circuit for a synchronous electric motor: The drive circuit (10) includes a processing and control circuit (14) comprising a protection circuit (16), designed to generate at its output inhibiting signal (C) starting from every zero crossing of the motor supply volts (V), the inhibiting signal (C) having a predetermined duration (t0) which is less than a... Agent: Harness, Dickey, & Pierce, P.l.c

20070273324 - Peak hold circuit, motor drive control circuit having the peak hold circuit and motor apparatus having the motor drive control circuit: A peak hold circuit is provided that operates stably even if a peak voltage to be held of a motor-drive-current detection voltage is minute. The peak hold circuit (14) includes: a level shift circuit (50) shifting the motor-drive-current detection voltage by a given voltage; a differential amplifier circuit (60) receiving... Agent: Fish & Richardson P.C.

20070267986 - Multiple control device for electric motors: The system relates to electric motors for operating accessories in a motor vehicle for combining the commands of several electric motors. Each combination comprises electric power supply means, relays for controlling the motors and means for controlling the relays. Switch means are provided for cutting off the power supply to... Agent: Foley & Lardner LLP

20070267987 - Tandem battery powered inverter and method of implementing same: AC inverters that are electrically connected to a direct current source to convert the direct current source such that the transistor power module of an inverter can power a plurality of AC motors wherein the motors can be located remote from the inverters or within the inverter housings.... Agent: Zarley Law Firm P.L.C

20070267988 - Electronic braking and energy recycling system associated with dc brushless motor: An electronic braking and energy recycling system associated with a direct current (DC) brushless motor, characterized in that when an electronic braking task is launched, a phase voltage occurred in an inverse mode is applied onto a motor coil corresponding thereto and a gate voltage signal with positive and negative... Agent: Sinorica, LLC

20070267989 - Apparatus, optical disc drive, and method of controlling the optical disc drive: An apparatus includes a motor that is rotatable; a lead screw including a thread part, the lead screw being rotatably coupled to the motor so that the lead screw rotates when the motor rotates; a moving member reciprocatably coupled to the thread part of the lead screw; and a control... Agent: Stein, Mcewen & Bui, LLP

20070267990 - Electronically commutated motor and control system employing phase angle control of phase current: A power tool may include an electronically commutated motor such as, for example, a brushless DC permanent magnet motor with a rotor having internally mounted magnets and/or cavities filled with air or other non-magnetic materials. A control system may be used to control the motor in a manner that implements... Agent: Harness, Dickey & Pierce, P.L.C

20070267991 - Overload protection system: An overload protection system and method of protecting a drive unit includes a torque arm assembly mounted to a fixture and a gear reducer. The reducer includes a bracket mounted to an axle of the reducer which is positioned adjacent to a measuring device. The torque arm assembly includes a... Agent: Dickinson Wright PLLC

20070267992 - Switch-based door and ramp interface system: An interface system is presented, which prevents operational interference between a vehicle power door and a ramp of an access system by interrupting power to the motors and actuators responsible for operating the door. The interface system includes a relay system that does not interrupt, read, signal, or otherwise interfere... Agent: Michael Best & Friedrich LLP

20070267993 - Method for detecting rain on a windscreen: A method for detecting raindrops on a windscreen, which uses a camera, which is fitted inside the vehicle opposite the windscreen and which is focused at infinite. The method comprises steps of acquiring images by a camera through the windscreen, camera preferably focused at infinite, retrieving the contours of the... Agent: Matthew R. Jenkins, Esq.

20070267994 - Legged robot, method for controlling legged robot, and device and method for generating gait data: A technique is presented for allowing a legged robot to walk with leg links (in particular legs contacting the ground) extended naturally. The legged robot comprises a torso and a plurality of leg links. A base end of each leg link is swingably connected to the torso and a tip... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070267995 - Six degree-of-freedom stage apparatus: Methods and apparatus for providing a fine stage with up to six degrees of freedom are disclosed. According to one aspect of the present invention, a stage apparatus includes a first stage assembly, a second stage assembly, and a countermass arrangement. The first stage assembly including a first component of... Agent: Aka Chan LLP

20070267996 - Method of controlling stepping motor, apparatus for controlling stepping motor, and printer: A method of controlling a stepping motor, comprising: performing a driving control of driving a rotor at a predetermined step angle; and performing a stop control of giving a driving circuit of the stepping motor a stop instruction for stopping the rotor at a position that is before or beyond... Agent: Edwards Angell Palmer & Dodge LLP

20070262735 - System and method for regenerative energy control when multiple motors share a common power supply: When multiple motors (40) share a common DC power supply (10) via a bus (20), a system and method is provided for managing the effect of regenerative energy caused by a motor. The regenerative energy may be sensed, e.g., by a power electronics controller (50, 50′). In response, one or... Agent: Honeywell International Inc.

20070262736 - Actuator driving apparatus: An actuator driving apparatus comprises the following. A start signal generator generates a start signal having a frequency substantially equal to the resonance frequency of the movable portion of an actuator. A rock detector detects rock of the movable portion. A drive timing signal generator generates a drive timing signal... Agent: Scully Scott Murphy & Presser, PC

20070262737 - Circuit device for increasing the useable motor voltage in a long stator drive and method for operating a magnetically levitated vehicle provided with said type of circuit device: A circuit device is disclosed which is used to increase useable motor voltage in a long stator drive. Further, suitable methods for operating a magnetically levitated vehicle provided with the circuit device are also disclosed. In one embodiment of the present invention, the stator section of the long stator drive... Agent: Siemens Corporation Intellectual Property Department

20070262738 - Motor driving device, image forming apparatus, and motor driving method: A motor driving device includes an amplifying unit, a noise removing unit, an analog-to-digital converter, a calculating unit, and a motor driving unit. The amplifying unit amplifies an analog frequency signal corresponding to a rotation speed of a direct-current brushless motor. The noise removing unit removes noise from the analog... Agent: Harness, Dickey & Pierce, P.L.C

20070262739 - Vertically-mounted garage door operator: Embodiments of the invention provide a control system for a garage door. The control system can include a motor, a pulley, a synchronous drive member, a carriage, and an operator. The pulley can be coupled to and driven by the motor. The synchronous drive member can be coupled to the... Agent: Michael Best & Friedrich LLP

20070262740 - Antilock system for a permanently excited electric motor drive: As an antilock system for a permanently excited electric motor drive, especially for a steering booster servo drive of a motor vehicle, in the event of a winding short-circuit, an interruption of at least one winding phase (MP1 or MP2 or MP3) of the winding affected by the short circuit... Agent: Baker Botts L.L.P. Patent Department

20070262741 - Method of and apparatus for evaluating the performance of a control system: A method of evaluating the performance of a control system using a computerized device includes calculating a ratio of a first area and a second area associated with a peak value of a signal associated with the control system, comparing the ratio with a predetermined value for the ratio, determining... Agent: Foley & Lardner LLP

20070262742 - Servo device: A servo device is provided which includes a drive source made of a brushless motor. A DC motor driving integrated circuit produces output signals and controls the output of a three-phase brushless motor driving integrated circuit to drive the brush less motor. A selection switching section detects information regarding the... Agent: Quarles & Brady LLP

20070262743 - Linking mechanism of interlock members for robot: A linking interlock mechanism in a biped robot is provided that prevents the reduction gears in the servo device from being damaged due to an external impulsive force. A servo horn is fit to the output shaft protruded from a servo device housing, which includes a motor, reduction gears, and... Agent: Quarles & Brady LLP

20070262744 - Linking mechanism of interlock members for robot: A method for controlling an electric motor includes the step of determining multi-phase voltage demand values. The method also includes the steps of determining a star voltage (vstar) of the electric motor and determining multi-phase voltage output command values as a function of the star voltage (vstar) and the multi-phase... Agent: Macmillan, Sobanski & Todd, LLC

20070257626 - Apparatus for controlling high speed operation of motor and method thereof: An apparatus and method for controlling high speed operation of a motor for controlling high speed operation of a motor by estimating the position and the speed of the rotor of a synchronous motor without a PI regulator to eliminate the users' inconvenience and to secure the reliability of the... Agent: Greenblum & Bernstein, P.L.C

20070257627 - System for controlling and/or regulating an electric machine of a motor vehicle: A system for controlling and/or regulating an electric machine, particularly a crankshaft starter generator, of a motor vehicle is provided. The system has prioritization devices by which different priorities can be assigned to demands on the electric machine. Coordinating devices are provided for coordinating the prioritized demands. When several demands... Agent: Crowell & Moring LLP Intellectual Property Group

20070257628 - Controlled solenoid drive circuit: A method and system for proving a solenoid drive circuit. An exemplary solenoid drive circuit comprises a solenoid drive circuit input coupled to a primary switch. The primary switch comprises a first set of contacts residing in a first stable position. A remote control switch is coupled to an output... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20070257630 - Adaptive current control system for a stepper motor: A method and a system are disclosed for adaptively controlling a stepper motor to produce a required torque output based on selection information provided by a sensor or a user/user interface which, in combination with a selector, selects a torque-related value. The selection information provided to the selector for selecting... Agent: Pitney Bowes Inc. 35 Waterview Drive

20070257629 - Safety interlock system and method for disrupting stepper motor control signals: A method and a system are disclosed for preventing stepper motor control signals from being applied to a stepper motor drive circuit in order to stop a stepper motor when an interlock situation is present. A sequence of one or more control signals is generated by a motion control system... Agent: Pitney Bowes Inc. 35 Waterview Drive

20070257631 - Electromotive power steering: Disclosed is an electromotive power steering for a motor vehicle, in which a special type of reluctance motor or series wound motor is used while such an electric motor is electronically commutated. In order to recognize an error condition in the electronic control device and the electric motor, adequate mechanisms... Agent: Stevens Davis Miller & Mosher, LLP

20070257632 - Apparatus and method for reducing the current drawn during starting of a single-phase ac asynchronous motors: Current consumption during the starting process of a single-phase a.c. asynchronous motor is reduced by an apparatus including a thermistor which can be mounted in series with the main winding of the motor. A starting capacitor can be mounted in series with an auxiliary winding, and current and voltage peaks... Agent: Shoemaker And Mattare, Ltd

20070257633 - Apparatus and method of controlling synchronous reluctance motor: An apparatus for driving a motor includes a rectifier which rectifies input alternating current (AC) power, a power converter which converts the rectified AC power into direct current (DC) power, an inverter which converts the DC power into AC power of a predetermined frequency that drives the motor, a position... Agent: Greenblum & Bernstein, P.L.C

20070252538 - Safety unit for use on vehicles: A safety unit for use on vehicles such as school buses. In one embodiment, a housing is provided for the drive motor and related elements for moving a stop sign on the side of the bus between its retracted and extended positions. The housing has a removable cover to provide... Agent: Kennedy Covington Lobdell & Hickman, LLP

20070252539 - Method of controlling two or more commutator dc permanent magnet motors in driving mechanisms for setting a position of furniture parts and a device for carrying out the method: The invention relates to a method of controlling two or more commutator DC motors with permanent magnets in driving mechanisms for setting a position of furniture parts such as tables, beds, chairs etc., where particular driving mechanisms must maintain mutually defined speed independently on their different load. The invention consists... Agent: Ostrolenk Faber Gerb & Soffen

20070252541 - Brushless dc motor actuator having remote commutation sensing apparatus: A brushless DC motor and Hall Effect commutation sensors are mounted on a common circuit board, and ferromagnetic elements partially embedded in the motor stator in proximity to the periphery of the rotor magnetically couple the rotor magnet to the Hall Effect sensors. Preferably, the ferromagnetic elements are embedded in... Agent: Delphi Technologies, Inc.

20070252543 - Electric drive for a vehicle: Disclosed is an electric drive for a vehicle, which is used as a main drive or a hybrid drive. The electric motor of said drive is embodied as a special type of reluctance motor or series wound motor. The rotor of the reluctance motor and the inverse speed motor is... Agent: Stevens Davis Miller & Mosher, LLP

20070252542 - Method and apparatus for controlling brushless dc motors in implantable medical devices: Methods and apparatus for controlling a polyphase motor in implantable medical device applications are provided. In one embodiment, the polyphase motor is a brushless DC motor. The back emf of a selected phase of the motor is sampled while a drive voltage or the selected phase is substantially zero. Various... Agent: Cooper & Dunham, LLP

20070252540 - Systems for brushless dc electrical drive control: A controller for brush less DC motors includes an angular position sensor and control logic to detect the phase difference between a target position signal and a current angular position signal. The detected phase difference is the basis for generating motor drive control signals to position the rotor of the... Agent: Townsend And Townsend And Crew, LLP

20070252544 - Method and apparatus for thermal control of electronic components: A method and system are provided for thermal management of a CPU. Both hardware and software data are used to periodically calculate a power consumption index. An internal database is provided to convert power consumption data to rotational speed of an associated cooling fan for the CPU. Based upon a... Agent: Lieberman & Brandsdorfer, LLC

20070252545 - Drive motor reversal for a barrier operator or the like: Methods and apparatus for reversing a drive motor for a barrier movement operator are disclosed. The operator senses the nature of a request for reversal and based on the nature of the sensed request performs one of a plurality of processes to reverse the motor.... Agent: Fitch Even Tabin And Flannery

20070252547 - Motor control apparatus: A motor control apparatus can protect circuit elements in an appropriate manner while preventing an incorrect abnormality determination when a motor is in regeneration operation, etc. The apparatus includes a target current calculation section (51), a drive control section (52) that generates a drive signal based on a current deviation... Agent: Sughrue Mion, PLLC

20070252546 - Power variation control system for cyclic loads: A method and apparatus for managing power demand of a motor in a cyclic load system having a rotational mass is provided. Flat power draw is achieved through continuous manipulation of the motor torque as a function of feedback velocity while using the rotational mass of the cyclic load as... Agent: Reinhart Boerner Van Deuren P.C.

20070252548 - Method of protecting power device of inverter during stall of motor: A method of protecting a power device of an inverter from overheating when a motor stalls or is operated in a low-speed range, including detecting and then performing an operation on a maximum tolerable temperature at a junction of the power device of the inverter and a casing temperature between... Agent: Morgan, Lewis & Bockius LLP (sf)

20070252549 - Robot having an obstacle detection unit and method of controlling the same: A robot having an obstacle detection unit and a method of controlling the robot. The robot includes a main body, a driving unit, an auxiliary body, and a control unit. The driving unit drives the main body along a given surface. The auxiliary body projects from the main body and... Agent: Staas & Halsey LLP

20070252550 - Head position control method, head position control device, and disk device: A positioning control device based on an observer control has a disturbance suppression function to which a disturbance suppression function is added without affecting the control characteristics of the observer. Models of an actuator and a disturbance model are separated, and for the disturbance model, state information is generated using... Agent: Greer, Burns & Crain

20070252551 - Control of electrical machines: An electrical machine, such as a switched reluctance motor, has a rotor and at least one electrically energizable phase winding. A control map is derived during production that includes a predetermined advance angle profile representing the energization of the phase winding with respect to the angular position of the rotor... Agent: Morrison & Foerster LLP