Electricity: motive power systems inventions 06/08

20080150454 - Multi-drive motor: The objective is solved by providing a the multi-drive motor comprises: a rotor 101 having an internal gear, a plurality of element motors 11˜14 for rotating a driving gear 102 meshing from the inside with the internal gear and thereby rotating the rotor 101, and a fixing flange 103, to... Agent: Berenato, White & Stavish, Llc

20080150455 - Dual motor drive system, control device for the same, and motor to be used in the same: An inverter having M×N arms is connected to a first motor having N groups of M phase coils and a second motor having M groups of N phase coils. At least one of the first motor and the second motor has as many teeth as the number of phases of... Agent: Squire, Sanders & Dempsey L.l.p.

20080150456 - Apparatus and method for controlling operation of reciprocating compressor: An apparatus and method for controlling an operation of a reciprocating compressor are disclosed. The apparatus for controlling an operation of a reciprocating compressor includes: a current phase delay value generating unit that calculates a current phase delay value by using a current stroke and a detected current and outputting... Agent: Greenblum & Bernstein, P.L.C

20080150457 - Method and apparatus for monitoring an electrical energy storage device: A method and article of manufacture for monitoring an electrical energy storage device adapted to supply electrical power to a selectively actuable electric motor is described. This comprises determining a state of charge and a temperature of the electrical energy storage device subsequent to a stabilization period, and measuring a... Agent: General Motors Corporation Legal Staff

20080150458 - Adjustable brake device: The invention relates to an adjustable brake device that can be used in conjunction with a hinge mechanism of a folding electronic device, e.g. a clamshell mobile phone. The adjustable brake device comprises a brake actuator that is able to generate a braking force responsive to a magnetic flux directed... Agent: Ware Fressola Van Der Sluys & Adolphson, LLP

20080150459 - Safe electric braking device for printing presses and method of electrically braking an electric drive in a machine processing printing material: A method and device for electrically braking an electric drive in a machine for processing printing material, includes a power electronics connected between the electric drive and a DC voltage intermediate circuit. A further electric braking device is switchable between the electric drive and the power electronics. Upon a failure... Agent: Lerner Greenberg Stemer LLP

20080150460 - Drive arrangement for a portable working machine: A drive arrangement for a hand-guided working machine for agriculture, forestry and horticulture applications. The drive arrangement comprises an electric motor, a DC power source for electrical energy, and a control apparatus for the electric motor which is fed from the DC power source. The electric motor has a specific,... Agent: Klarquist Sparkman, LLP

20080150461 - Self-powered assembly for the actuation of a roller blind or awning: An actuation assembly (INST) of a screen (SCR) for closure, solar protection or privacy, comprising, on the one hand, a motorized actuator (ACT) furnished with wireless control command receiving means (RCU) and, on the other hand, a standalone power supply assembly (PWU) furnished with at least one rechargeable accumulator (BAT)... Agent: Frommer Lawrence & Haug

20080150462 - Method and arrangement in connection with motor fed with frequency converter provided with intermediate voltage circuit: Method and arrangement in connection with a motor fed with a frequency converter provided with an intermediate voltage circuit. The method comprises steps of feeding motor voltage to the motor along a motor cable with a frequency converter for controlling the motor, rectifying the voltage of the motor cable and... Agent: Buchanan, Ingersoll & Rooney Pc

20080150463 - Windshield wiper control apparatus: Windshield wiper control apparatus comprises one or more door-open sensors and electronic control circuitry operative to terminate or slow down the operation of the windshield wipers if the door associated with that sensor is opened. The apparatus may further include an inclement weather detector, such that the electronic control circuitry... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20080150464 - Operation of an electrical drive system: An electrical drive system includes an electrical machine controlled by an electronic controller, which requires feedback of signals representing quantities associated with the operation of the electrical machine. These signals may represent, for example, flux, current and/or rotor position. The integrity of these signals is validated by setting suitable thresholds... Agent: Haynes And Boone, LLP

20080150466 - Debris sensor for cleaning apparatus: A piezoelectric debris sensor and associated signal processor responsive to debris strikes enable an autonomous or non-autonomous cleaning device to detect the presence of debris and in response, to select a behavioral mode, operational condition or pattern of movement, such as spot coverage or the like. Multiple sensor channels (e.g.,... Agent: Fish & Richardson P.c.

20080150465 - Lower half body module of bipedal walking robot: It is an object of the present invention to provide a lower half body module of a bipedal walking robot which is excellent in practicality in the point that it is possible to transport a heavy load, and which is excellent in the degree of freedom in designing in the... Agent: Sughrue Mion, Pllc

20080150467 - Robot system able to secure worker safety: A robot of a robot system performs a desired operation by an operation motor and moves along a route by a movement motor. The robot system includes a robot power cutoff device for cutting off the power supply to the operation motor when making the robot move from one station... Agent: Lowe Hauptman Ham & Berner, LLP

20080150468 - Method for position and/or speed control of a linear drive: The invention relates to a method and a circuit layout for the position and/or speed control of a linear drive, in particular a servo drive for a linear robot. An electric motor is supplied via a converter (3) with a control unit (4) and the motor position is determined, in... Agent: Greenblum & Bernstein, P.L.C

20080150469 - Feedforward controller for synchronous reluctance machines: The present invention provides an electro-mechanical energy exchange system with a variable speed synchronous reluctance motor-generator having an all-metal rotor. A bi-directional AC-to-DC electric power converter interconnects the motor-generator with a DC bus. First and second hybrid controllers provide current regulation for the motor-generator and voltage regulation for the DC... Agent: Jackson, Demarco, Tidus & Packenpaugh

20080150470 - Controller for synchronous machine: A controller for a synchronous machine includes: a power converter; a synchronous machine driven by the power converter; a PWM modulation section for controlling the synchronous machine; a current detection section which detects a current conducted to the synchronous machine; a voltage detection section which detects a voltage applied to... Agent: Foley And Lardner LLP Suite 500

20080150471 - Motor starting and switching: A method of starting and apparatus for starting a multiphase electrical machine is disclosed. The aim is to reduce oscillatory pulsation in torque generated by the motor and inrush current that occurs shortly after start-up. The starting method comprises the steps of first connecting at least one, but less than... Agent: Baker Botts L.l.p.

20080143279 - Electric drive system: An electric drive system includes a multi-phase electric machine, multiple electrical power output stages, and devices for controlling and/or regulating the electric machine, which are connected to the electrical power output stages. At least two control units are provided for control and/or regulation, at least one power output stage group... Agent: Crowell & Moring LLP Intellectual Property Group

20080143280 - Wireless liftgate control system: A wireless control system can be used to selectively adjust the position of a liftgate platform with respect to a vehicle cargo hold. The wireless control system includes a transmitter for use in transmitting a wireless control signal, a receiver that receives the wireless control signal transmitted by the transmitter... Agent: Timothy D. Bennett Brouse Mcdowell, Lpa

20080143281 - Secondary battery control apparatus and secondary battery control method: When it is determined that a battery temperature is lower than a threshold value, an inverter control circuit alternately switches an operation point of an AC motor between an optimum operation point and a motor loss increase point. At the motor loss increase point, an increase in the amplitude of... Agent: Oliff & Berridge, Plc

20080143282 - Inductive sense spindle start algorithm: A control circuit for a hard drive or sensorless DC spindle motor is provided. The control circuit includes a spindle driver generating a spindle motor control output. A spindle controller coupled to the spindle driver causes the spindle driver to vary the spindle motor control output during an inductive sense... Agent: Texas Instruments Incorporated

20080143283 - System, method, and computer software code for controlling performance of a dynamic braking system: A method for controlling a performance of a dynamic braking system to maintain a dynamic braking tractive effort current plateau and/or improve the dynamic braking tractive effort current plateau, the method including sensing the traction motor field current and regulating the traction motor field current to maintain at least one... Agent: Beusse Wolter Sanks Mora & Maire, P.a.

20080143284 - Two-phase permanent magnet motor: The invention relates to a two-phase permanent magnet motor which is controlled by a frequency converter. The frequency converter is advantageously provided with a three-phase inverter having six switches that are controlled in such a manner as to minimize switching losses.... Agent: Panitch Schwarze Belisario & Nadel LLP

20080143285 - Rfi/emi filter for variable frequency motor drive system: An RFI/EMI filter for a variable frequency motor drive system includes a variable frequency drive; a common mode choke; a motor; a cable including a plurality of power leads interconnecting the motor with the variable frequency drive and passing through the choke; a ground shield surrounding the cable and connected... Agent: Iandiorio & Teska Intellectual Property Law Attorneys

20080143286 - Control apparatus for electric vehicles: In a hybrid vehicle control apparatus, a motor control unit executes the input power control on a MG unit independently from a torque control on an AC motor so that the input power control and the torque control are stabilized. The motor control unit further executes a torque difference reduction... Agent: Nixon & Vanderhye, Pc

20080143287 - Method for extracting maximum gain of servo controller: In a method for extracting a maximum gain of a servo controller for driving a servo motor, a simulated disturbance torque is applied to a torque command by a vibrating unit while a control gain is raised and the vibration of a control system is detected by a vibration detecting... Agent: Sughrue Mion, Pllc

20080143288 - Synchronous motor control device: Control technique of a synchronous motor capable of suppressing rotation pulsation caused by individual difference without complicating control algorithm is provided. A pulsation generator superimposing a pulsation component anticipated in advance to a current command for the synchronous motor and a correction current generator superimposing a correction signal substantially having... Agent: Townsend And Townsend And Crew, LLP

20080143289 - Sensorless control systems and methods for permanent magnet rotating machines: Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a plurality of phase windings and a rotor that rotates relative to the stator. A drive is connected to the phase windings for... Agent: Harness, Dickey, & Pierce, P.l.c

20080136357 - Machine status interlock for reversing fan control: The air circulation fan associated with a radiator of some machines may include an automatic reversing purge cycle that is utilized to dislodge material from the radiator and/or intake screen of the cooling system housing. The purge cycle is locked out when a person may be in the vicinity of... Agent: Caterpillar C/o Liell, Mcneil & Harper

20080136358 - Vehicle panel control system: A system includes a controller and a sensor. The controller transmits a panel control signal to a motor for the motor to move a movable panel of a vehicle along a path between opened and closed positions while the motor receives power from a power source. The motor receives power... Agent: Brooks Kushman P.c.

20080136359 - Regenerative braking system of fuel cell vehicle using super capacitor: A regenerative braking system includes a capacitor which is electrically connected to a stack and is charged by the stack, a traction motor, a motor control unit which control electric power input to the traction motor and electric power output from the traction motor, a chopper which is connected to... Agent: Morgan, Lewis & Bockius LLP (sf)

20080136360 - Apparatus, system, and method for detecting an electrical short condition in a dynamoelectric machine: A system, apparatus, and method (10) for detecting an electrical short condition in a dynamoelectric machine are described. The method includes determining an operating parameter of a dynamoelectric machine (14) responsive to at least one output signal of the dynamoelectric machine and providing a transfer function (16) for predicting a... Agent: General Electric Company Global Research

20080136361 - Raindrop detecting device and method of determining raindrop amount: A raindrop detecting device includes a raindrop sensor, and a controller. The raindrop sensor is disposed in a wiping area of a wiper blade on a front windshield, and outputs a detection signal regarding a raindrop amount. The controller activates the wiper blade based on the detection signal, and sets... Agent: Nixon & Vanderhye, Pc

20080136362 - Drive system: The invention relates to a drive system comprising a control unit (1), which is connected to drive units (3a, 3b, 3c, 3d, 3e, 3f, 3g) via a data bus (2) for the exchange of data. According to the invention, one drive unit (3a, 3b) is connected to the drive motor... Agent: Henry M Feiereisen, Llc

20080136363 - Method, apparatus and article for load stabilization: A system, method, and article for protecting a power source for a machine from sudden changes in load. In one embodiment, energy is wasted in a winding of a motor in response to a decrease in a load presented to the power source.... Agent: Siemens Corporation Intellectual Property Department

20080129230 - Vehicle gearbox with an integrated electric motor: The invention relates to an electromechanically activated motor vehicle transmission (31, 14) such as an automated manual transmission (31) or a transfer case (14). This transmission comprises at least a transmission housing (11), an electromagnetic selecting or shifting device (1) and an electric motor (2, 8, 22) by means of... Agent: Davis Bujold & Daniels, P.l.l.c.

20080129231 - Electric motor car drive control apparatus: To provide an electric motor car drive control apparatus enabling, in a train drive system having permanent magnetic synchronous motors employed as drive motors, such a configuration that allows a similar control to a centralized control like the case of induction motors, allowing for a reduced cost and a minimized... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20080129232 - Method and apparatus for controlling stopping of vibration generating stepping motor: A method for controlling stopping of a vibration generating stepping motor is a method for controlling the stopping of an vibration generating stepping motor by a control unit, characterized in that the method includes: stopping a supply of a driving pulse to the vibration generating stepping motor while applying a... Agent: Foley And Lardner LLP Suite 500

20080129233 - Barrier operator with panic control override mode and related method: In one embodiment, the present invention describes a gate closure system having a barrier or gate operator for moving a gate between a gate fully opened position and a gate fully closed position. The gate closure system preferably further includes, among other things, a master control board with input and... Agent: J. Mark Holland And Associates

20080129234 - Activation current for dc motor having brake and emergency operation supply unit: The present invention relates to an activation circuit and a method for operating such an activation circuit for a DC motor (04) having electrically actuated stopping brake (07), in particular for adjusting a rotor blade of a wind or water power facility. The activation circuit comprises an emergency operation supply... Agent: Quarles & Brady LLP

20080129235 - Ceiling fan with illumination: A ceiling fan with electrical illumination has a fan casing and a connection casing for connection of a fan motor and at least one light source to a power supply system. An electronic control device integrated in the ceiling fan automatically limits the electrical power drawn from the power supply... Agent: Lerner Greenberg Stemer LLP

20080129236 - Motor control device: A control unit learns at least one limit position in a movable range of an object to be controlled which is driven by a motor, and reduces learning time of a limit position. The control unit rotates the motor until the motor strikes the object against at least one limit... Agent: Nixon & Vanderhye, Pc

20080129237 - Motor control method and motor control apparatus: A motor control method that includes the steps of: rotationally driving a motor that is provided with a rotor having permanent magnet pieces, and a stator; and short circuiting a plurality of phases of the motor when the rotational frequency of the motor is equal to or greater than a... Agent: Arent Fox LLP

20080129238 - Method for detecting earth-fault conditions in a motor controller: The present invention relates to a method for determining the existence of an earth-fault on-the-fly and thereby protecting a motor controller having a high- and a low-side DC-link, and having high- and low-side switching elements, the high- and low-side switching elements being operatively connected to the high- and low-side DC-link... Agent: Mccormick, Paulding & Huber LLP

20080129239 - Joinable robot component for robot toy, modifiable robot toy using the joinable robot components, and control method thereof: A robot component is provided as assembly units for assembling a robot toy with a great variety of configuration. The robot component has three connectors, i.e., a rotatable connector of a gear shaft, a laterally protruding connector of the gear shaft, and a receivable connector of a middle housing. These... Agent: Ipla P.a.

20080129240 - Apparatus and method of controlling injection in electric injection molding machine: An apparatus and method of controlling injection in an electric injection molding machine including a motor and a screw. The apparatus has an encoder detecting a current position of the screw and outputting the detected position as an encoding signal, a memory storing reference positions of the screw according to... Agent: Mcdermott Will & Emery LLP

20080129241 - Methods for electric vehicle motor control and rotor position detection fault-tolerant processing: This invention provides methods for electric vehicle motor control and rotor position detection and fault-tolerant processing. The rotor position signal sampled by the system is compared with the previous rotor position θ0. When there is a sudden change, the current position signal acquired is discarded. Instead, a fault-tolerant processing strategy... Agent: Emil Chang Law Offices Of Emil Chang

20080129242 - Scale factor calibration and compensation for angular position resolver: In accordance with an embodiment of the present invention, a resolver system has at least one resolver and at least one amplifier in electrical communication with each resolver. A reference circuit is in electrical communication with the amplifiers. The reference circuit provides reference signals to the amplifiers. A non-linearity calibration... Agent: Macpherson Kwok Chen & Heid LLP

20080129244 - Control of a switched reluctance machine: The windings of a switched reluctance machine are supplied from a converter which is capable of providing bipolar energisation. The energisation pattern supplied to the windings is dependent on the number of stator and rotor poles in the machine and is selected to produce unipolar energisation in the rotor poles.... Agent: Haynes And Boone, LLP

20080129243 - System and method for controlling motor using parameter associated with magnetic flux: A control method for a motor that rotates based on flux linkages to a winding member of the motor when the winding member is energized by a drive current is provided. The method includes storing magnetic-state information indicative of a relationship between each of a plurality of predetermined operating points... Agent: Oliff & Berridge, Plc