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Electricity: motive power systems September class, title,number 09/09

20090237012 - Cordless power tool and battery device used for same: A power tool, having attached thereto a battery device including one or a plurality of cell assemblies, includes a motor which is supplied with a DC current from the battery device, a switching element which controls a drive and a stop of the motor, means which detects a number of... Agent: Mattingly & Malur, P.C.

20090237013 - Control apparatus and method for motor drive system: In the rectangular-wave voltage control mode, torque feedback control, in which the voltage phase of the rectangular-wave voltage is adjusted based on the deviation of the torque estimated value from the torque command value, is performed. A torque estimation portion calculates the torque estimated value using the motor currents calculated... Agent: Oliff & Berridge, PLC

20090237015 - Motor control device: To prevent a step-out of a permanent magnet synchronous type motor (1), a motor control device (3a) is provided to include a flux control unit (16) for deriving an excitation current command value (iγ*) according to the rotation speed (ωe) of the motor, and a voltage shortage determination unit (30)... Agent: Ndq&m Watchstone LLP

20090237014 - Synchronous motor control device and method for optimizing synchronous motor control: A synchronous motor control device, includes a coordinate transformation portion for coordinate transforming motor currents applied to respective three phases of a synchronous motor into a d-axis, corresponding to a direction of a magnetic field generated by a permanent magnet arranged at a rotor of the synchronous motor, and a... Agent: Sughrue Mion, PLLC

20090237018 - Drive unit and manufacturing method thereof: A drive unit includes a rotating electrical machine; a rotation sensor that detects a rotational position of a rotor of the rotating electrical machine, and a storage medium. In an inspecting step of measuring a counter electromotive force by mechanically driving the rotating electrical machine after the rotating electrical machine... Agent: Oliff & Berridge, PLC

20090237019 - Motor drive control apparatus, vehicle equipped with motor drive control apparatus, and motor drive control method: When a target operation point of either a motor MG1 or a motor MG2 is included in a resonance range specified by operation points of the motor MG1 or the motor MG2 in the occurrence of resonance in a booster converter, a hybrid vehicle controls the booster converter to make... Agent: Kenyon & Kenyon LLP

20090237020 - Driving device for synchronous motors: A driving device for three-phase alternating current synchronous motors controls state of charge of a capacitor, and a three-phase alternating current synchronous motor is started prior to the operation of the synchronous motor. Prior to control by a normal operation control unit, the state of charge of the capacitor is... Agent: Posz Law Group, PLC

20090237021 - Apparatus for carrying out improved control of rotary machine: In an apparatus, a norm setter sets, based on a request torque for a rotary machine and a rotational velocity of a rotor, a norm of a vector of an a output voltage in a two-phase rotating coordinate system defined in the rotor. A phase setter sets, based on a... Agent: Nixon & Vanderhye, PC

20090237022 - Apparatus for carrying out improved control of rotary machine: In an apparatus, a phase setter sets, based on a deviation between a generated torque and a request torque for a rotary machine, a phase of a vector of a variable output voltage of a power converter in a two-phase rotating coordinate system defined in a rotor of the rotary... Agent: Nixon & Vanderhye, PC

20090237017 - Circuit unit for driving an electronically commutated fan motor: The invention relates to a circuit unit for driving an electronically commutated fan motor with a power stage for driving windings of the fan motor and with a control stage for driving the power stage. The circuit unit is distinguished in that an operating voltage of the control stage is... Agent: Slater & Matsil, L.L.P.

20090237016 - Motor controller: A motor controller capable of effectively utilizing electrical energy accumulated in a capacitor and achieving a reduction in capacitance of the capacitor. The motor controller includes a converter that receives an input AC voltage and performs AC-to-DC power conversion thereon, an inverter that receives DC power and performs DC-to-AC conversion... Agent: Drinker Biddle & Reath (dc)

20090237023 - Device for controlling opening/closing body for vehicle: The rotating speed of an output shaft of a door opening and closing motor actuating a sliding door is monitored, and whether a fluctuation value of the rotating speed is equal to or more than a first determination threshold value is determined (step S310). A second determination threshold value having... Agent: Buchanan, Ingersoll & Rooney PC

20090237024 - Method and apparatus for pinch protection for a motor-driven closure system: The invention relates to a pinch protection method and device for a motor-driven closing system. The method comprises the following steps: detecting a reduced motor speed, switching off the motor, analyzing a sensor signal for detecting a pinch situation, deciding whether a pinch situation is present, and controlling the motor... Agent: Michael J. Striker

20090237025 - Bipedal walking robot: Provided is a bipedal walking robot which includes a linear actuator, which connects a crus link and a foot of each leg away from an ankle joint, for driving the foot to rock around the ankle joint with respect to the crus link according to a telescopic motion thereof. The... Agent: Rankin, Hill & Clark LLP

20090237026 - System and method for drive controller anti-backlash control topology: Method and system for backlash control in gear trains that are driven by electric drives controlled by a drive controller. The drive controller causes the drives to generate continuously opposing torques and adjusts torque rotational offsets so as to maintain desired backlash and gross motion of the driven gear.... Agent: Siemens Corporation Intellectual Property Department

20090237027 - Induction motor control device: An induction motor control device includes an inverter circuit for driving an induction motor by outputting a command voltage, a current detector for detecting an output current, a magnetic flux estimation observer for generating an estimated magnetic flux, an estimated current, and a phase command for the motor using the... Agent: Ditthavong Mori & Steiner, P.C.

20090230897 - Electric motor: An electric motor for a textile machine can be operated as a generator if the supply voltage fails. The electric motor comprises a rotor configured as the motor armature and a motor phase control circuit comprising a plurality of semiconductor components wherein the electric motor can be short-circuited if a... Agent: K&l Gates LLP

20090230898 - Servo amplifier with regenerative function: A servo amplifier for a robot capable of avoiding an excessive capacity for dealing with a regenerative power to achieve downsizing, cost reduction and energy saving of the device. A servo amplifier for driving servomotors of a robot to perform an operation using an electric power from a power source.... Agent: Drinker Biddle & Reath (dc)

20090230899 - Control apparatus for power conversion apparatus and power conversion system: The control apparatus for a power conversion apparatus having chopper circuits and a capacitor, each of which includes a switching circuit and a coil, the switching circuit being on/off-controlled in accordance with specific timings determined in accordance with a current flowing through the coil to create required voltage in the... Agent: Nixon & Vanderhye, PC

20090230900 - Current regulator and current control method and system for ac motors: Methods and systems are provided for controlling an AC motor via an inverter. The method includes determining a delay-compensated offset based on a synchronous frame current, producing a current error based on a synchronous frame current and a commanded current, producing a voltage error based on an anti-windup offset and... Agent: Ingrassia Fisher & Lorenz, P.C. (gm)

20090230904 - Noise suppression for hall sensor arrangements: A method and apparatus is provided for processing signals from a Hall-effect device arrangement coupled to a monolithic brushless DC motor where the motor is driven by a PWM circuit providing PWM drive signals.... Agent: Knobbe Martens Olson & Bear LLP

20090230905 - Back electro-motive force (bemf) commutation and speed control of a three-phase brushless dc (bldc) motor: A DC motor comprises a stator having at least three windings coupled to a neutral point; a first pair of upper and lower switches for driving a first winding of the at least three windings to a first voltage or in tristate; a second pair of upper and lower switches... Agent: Squire, Sanders & Dempsey L.L.P.

20090230906 - Mos transistor control: The invention concerns a method for controlling a switching assembly comprising a plurality of transistors connected in parallel, having a linear operating mode, a closed-switch operating mode and an off operating mode including a first operating phase during which a current flows from a source terminal to a drain terminal... Agent: Matthew R. Jenkins, Esq.

20090230907 - Method and circuit arrangement for continously supplying power to a brushless electric motor: The invention relates to a method for controlling a brushless electric motor comprising a plurality of winding branches (21, 22, 23) and a circuit arrangement (1) suitable therefor. The temporal progression of the clamping potential (Uu, Uv, Uw) is produced respectively by clocked switches between a low and a high... Agent: Manelli Denison & Selter

20090230903 - Inverter controller and method for operating the same: An inverter controller (20) equipped with a voltage detection circuit (5) for detecting the terminal voltage of the smoothing capacitor (2) and a speed command selection circuit (6) for detecting an instantaneous power failure in an AC power source has a power calculation circuit (36) for calculating the power output... Agent: Sughrue-265550

20090230902 - Inverter system for vehicle-mounted air conditioner: The object is to provide an inverter system for a vehicle-mounted air conditioner capable of reducing standby power requirements during nonuse. The voltage supply from a communication power source 80 is turned on and off on the basis of a signal from a communication driver 27a and an electric switch... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20090230901 - Power source apparatus for vehicle, vehicle and method of controlling power source apparatus: A vehicle (100) includes a motor generator (MG) and an inverter (14) driving the motor generator (MG). A power source apparatus for the vehicle includes a battery (B) as an electric storage device, a step-up converter (12) stepping up a voltage of the electric storage device and supplying it to... Agent: Oliff & Berridge, PLC

20090230908 - Drive device for vehicle: An object of the present invention is to suppress reverse of a vehicle on an up-hill road against an intention of a driver. A drive device for a vehicle according to the present invention includes: an estimator for estimating whether or not reverse of the vehicle occurs on an up-hill... Agent: Oliff & Berridge, PLC

20090230909 - Redundant dc bus discharge for an electric motor system: Methods and apparatus are provided for discharging a direct current (DC) bus providing power to a motor control circuit in an electric motor system. The method includes the steps of detecting a predetermined discharge signal and generating operational control signals comprising phase currents for dissipating energy from the DC bus... Agent: Ingrassia Fisher & Lorenz, P.C. (gm)

20090230910 - Numerical controller having function to switch between pressure control and position control: The numerical controller has function to switch between pressure control and position control, and comprises a numerical control unit and a servo control unit. While the servo control unit is controlling pressure, a servo position deviation amount corresponding to current actual speed of a control axis is set in the... Agent: Drinker Biddle & Reath (dc)

20090230911 - Optical apparatus: An optical apparatus ensuring smooth driving control of an optical member is disclosed. The optical apparatus includes an optical member, a stepping motor configured to drive the optical member, a driving commander configured to generate driving pulses supplied to the stepping motor, a pulse count generator configured to count the... Agent: Canon U.s.a. Inc. Intellectual Property Division

20090230912 - Motor controller: A motor controller includes a command part that generates a command signal, a control part that drives a control object through an output filter when the command signal is input, an operating amount detector that detects an operating amount of the control object, a frequency response characteristic measurement part that... Agent: Ditthavong Mori & Steiner, P.C.

20090230913 - Dc bus discharge in an electric motor system: Methods and apparatus are provided for improved discharge of a DC bus which provides power to an inverter. An electric motor system provided with the improved discharge method for discharge of the DC bus includes an electric motor, the inverter which provides electric control for the permanent magnet electric motor,... Agent: Ingrassia Fisher & Lorenz, P.C. (gm)

20090230914 - Motor start circuit with capacitive discharge protection: A motor start circuit for an AC induction motor employs a DC relay whose NC contacts are placed in series with the start capacitor. A half full-wave rectifier arrangement has an AC input connected to the junction of the relay switch and the start capacitor, and DC outputs applied across... Agent: Bernhard P. Molldrem, Jr.

20090224702 - Brushless d.c. motor with rfid rotor magnet position sensing: A brushless D.C. motor has a rotor with a plurality of magnets secured to a mounting surface. Each magnet has an RFID tag secured to a magnet surface, with each RFID tag having stored therein a unique identification character serving to identify the magnet. A stator has a plurality of... Agent: Warren P. Kujawa

20090224703 - Control and protection methodologies for a motor control module: A motor control module designed to control operation of a plurality of different motors in a plurality of different tools a power tool uses an electronic clutch in the module in conjunction with a mechanical clutch in the tool to protect the tool against an overload event. The module is... Agent: The Black & Decker Corporation

20090224704 - Power transducer: The performance of a power transducer is improved while efficiently using a power semiconductor also by managing the permissible duty factor of the power semiconductor in the regenerative braking circuit provided in the power transducer. The user is allowed to set, through an operation panel provided on the power transducer,... Agent: Mattingly & Malur, P.C.

20090224705 - Rheostatic safety braking device having a bipolar resistive assembly with permanent magnet motor: It is characterised in that the braking torque production device (22) comprises, on the one hand, a bipolar assembly (122) of at least one dissipative resistor, the assembly having two single connection terminals and forming a common terminal bipolar electric output load for all the terminals (13, 14, 15) of... Agent: Davidson, Davidson & Kappel, LLC

20090224706 - Safety device for detecting inadequate electric braking and commutation to a safety brake: The device includes a member for commutation from the first brake to the second brake, a device for monitoring the braking performance of the first brake using data for measurement of the intensity of a current, a decision device for commutating from the first brake to the second brake when... Agent: Davidson, Davidson & Kappel, LLC

20090224707 - Electric motor control: A control system for an electric motor is arranged to determine the position of the motor from at least one electrical parameter by means of a position determining algorithm. It is further arranged to monitor at least one algorithm parameter defined by the algorithm and if the monitored parameter meets... Agent: Macmillan, Sobanski & Todd, LLC

20090224708 - Split brushless motor driving controller for ceiling fan: A driving controller uses with a ceiling fan, which has a brushless motor. The driving controller including: a microprocessor unit having control programs and ROM units. The ROM units save the departure parameter data of the brushless motor inside. The microprocessor can read a designate departure parameter from the ROM... Agent: Browdy And Neimark, P.l.l.c. 624 Ninth Street, Nw

20090224709 - Time delay logic of motor control: Circuitry for controlling a motor, such as a brushless motor (BLM), is disclosed. The circuitry may comprise one or more inputs for receiving rotor position signals from one or more Hall effect sensors that detect the position of, for example, a BLM rotor. The circuitry may also comprise an input... Agent: Knobbe Martens Olson & Bear LLP

20090224710 - System and methods involving dynamic closed loop motor control and flux weakening: A method for controlling motor, the method including, receiving a motor torque command, calculating a first current associated with the motor torque command, calculating an estimated first current responsive to receiving a first regulated voltage associated with the first current and a motor speed signal, subtracting the estimated first current... Agent: Cantor Colburn, LLP

20090224711 - Rotating electrical machine with decoupled phases: A rotating electrical machine comprising an electromechanical group with n phases which is adapted in such a way as to convert electrical power into mechanical power, and a static converter circuit which is used to supply the electrical power and comprises n pairs of switching circuits mounted in series. Each... Agent: Matthew R. Jenkins, Esq.

20090224712 - Heat-exchange cooling device and power supply circuit driver used therefore: A heat exchange cooler capable of eliminating continuous radiation of high-frequency noise waves and reducing the man hour for the installation work, and a power circuit driving device used for it are provided. A commercial power transformer (311), which transforms commercial AC power (307) supplied from a heat generating element... Agent: Mcdermott Will & Emery LLP

20090224713 - Method for operating a parallel hybrid drive: In a method for operating a parallel hybrid drive of a vehicle, in particular of a motor vehicle, having an electric machine and an internal combustion engine, the internal S combustion engine is started in the driving state of the vehicle with the aid of the electric machine by engaging... Agent: Kenyon & Kenyon LLP

20090224714 - Fuel pump control apparatus: A control apparatus for controlling a fuel pump includes: an electronic switch provided in a circuit for connecting a power supply to a motor for driving the fuel pump; a current detector which detects a current which flows through the motor; and a controller which controls the electronic switch in... Agent: Sughrue-265550

20090224715 - Cooling system for a vehicle drive assembly: A cooling system for use in a vehicle drive assembly having an electric drive with a rotor and a stator is disclosed. The cooling system is adapted to cool the rotor via a liquid coolant or by directing a cooling air flow between the rotor and stator using an independent... Agent: Timothy A. Nathan

20090224716 - Self-calibration algorithms in a small motor driver ic with an integrated position sensor: A motion control device for controlling a motor is presented. The motion control device is operable to scale or adjust an input relative to an input range that is based on calibration values and to use that scaled input to produce a drive signal to drive the motor. The motion... Agent: Daly, Crowley, Mofford & Durkee, LLP

20090224717 - Operating apparatus: An operating apparatus including a main body, a movable member, a drive unit having a drive source, and a control unit controlling the drive source to control the position of the movable member relative to the main body. The control unit including a position control system and an acceleration control... Agent: Oliff & Berridge, PLC

20090224718 - Control system for oscillatory actuator: A drive unit (1) includes a stage (3), a first ultrasonic actuator (4A) for driving the stage (3) in an X direction and a second ultrasonic actuator (4B) for driving the stage (3) in a Y direction. When the stage (3) is driven only in one of the X direction... Agent: Mark D. Saralino (pan) Renner, Otto, Boisselle & Sklar, LLP

20090224719 - Image sensing apparatus: An image sensing apparatus, which has a constant-voltage driven stepping motor, comprises a PWM waveform generation part (4) that generates pulse signals to be applied to switching devices (Q1 to Q4); and a PWM waveform determination section (3) that determines a PWM waveform to be generated by the PWM waveform... Agent: Fish & Richardson P.C.

20090224720 - Ac voltage output apparatus and hybrid vehicle including the same: A first inverter control unit includes a harmonic generation unit. The harmonic generation unit generates a harmonic voltage instruction having a phase opposite to a harmonic generated at a neutral point of a motor-generator when the motor-generator revolves, based on motor revolution number of the motor-generator. A PWM signal generation... Agent: Oliff & Berridge, PLC

20090224721 - Varying flux versus torque for maximum efficiency: A motor in an electric vehicle can be controlled by receiving a torque command value, calculating a first flux value corresponding to a determinable efficiency of the electric vehicle at the torque command value, calculating a first torque-producing current value as a function of the torque command value and of... Agent: Schwegman, Lundberg & Woessner, P.A.

20090218962 - Connection of an electric motor to a supply network: Method and arrangement for connecting an AC electric motor (M1, M2, . . . MN) to an AC electricity network (L) in a system which comprises a frequency converter (FC), with which the motor is started, and contactors (S11, S12, S21, S22, SN1, SN2), in which method the supply source... Agent: Birch Stewart Kolasch & Birch

20090218964 - Driving apparatus, industrial instrument, exposure apparatus, and device manufacturing method: A driving apparatus which electrically drives a component built in an industrial instrument, comprises a housing including a supply inlet and an exhaust outlet, a fan configured to form an air current so that air is taken into the housing through the supply inlet and exhausted from inside the housing... Agent: Fitzpatrick Cella Harper & Scinto

20090218963 - Linear motor automatic control circuit assembly for controlling the operation of a 3-phase linear motor-driven submersible oil pump of an artificial oil lift system: Connected to a 3-phase linear motor of a submersible oil pump of a crude oil production system, a linear motor automatic control circuit assembly is disclosed to include a linear motor power supply circuit, a CPU, an insulated gate bipolar transistor driving circuit, a current detection circuit, a temperature sensor,... Agent: Rosenberg, Klein & Lee

20090218965 - Electric motor control: A control system for an electric motor is arranged to determine the position of the motor from at least one electrical parameter by means of a position determining algorithm which is reliant on movement of the motor to determine the motor position, and to start up the motor from rest... Agent: Macmillan, Sobanski & Todd, LLC

20090218966 - Electric drive system for vehicle, electric control system for vehicle, electric drive method for vehicle: In an electric drive system for a vehicle, an alternator is driven by an engine to generate electric power which is used to drive a motor to generate a driving force. During a retardation of the vehicle, the motor is operated as an alternator to convert kinetic energy to electric... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090218968 - Control system for controlling motors for heating, ventilation and air conditioning or pump: The present invention discloses a control system for controlling a motor for a heating, ventilation and air conditioning (HVAC) or a pump comprising: an opto-isolated speed command signal processing interface into which a signal for controlling a speed of the motor is inputted and which outputs an output signal for... Agent: Knobbe Martens Olson & Bear LLP

20090218969 - Motor drive control device and motor drive control system: A motor drive control device for controlling the driving of a brushless motor includes position detecting units (e.g. sensors or Hall elements), a drive signal determining unit and a drive signal outputting unit (an output circuit). The position detecting units are disposed in positions apart from each other by an... Agent: GlobalIPCounselors, LLP

20090218970 - Starting and generating multiplying cotnrol system,and method for using the system, and an electromotion mixed dynamic vehicle: A starting and generating multiplying control system and a method for using the system. The system comprises a motor drive controller, a motor and a magneto-electric change-over switch. The motor comprises a starting winding and a motor assistant winding. Both outputs of the starting winding and the motor assistant winding... Agent: Merek, Blackmon & Voorhees, LLC

20090218971 - Phase logic circuits for controlling motors: Circuitry for controlling motors, such as a brushless motor (BLM), is disclosed. The circuitry may comprise one or more inputs for receiving rotor position signals from one or more Hall effect sensors that detect the position of, for example, a BLM rotor. The circuitry may also comprise an input for... Agent: Knobbe Martens Olson & Bear LLP

20090218972 - Method and apparatus for detecting reverse current, and method and apparatus for driving motor: A reverse current detection apparatus determines whether an electrical conduction control to a motor coil of a motor is in a predetermined state based on a timing signal representing a timing at which to conduct a source current or a sink current through the motor coil and a control signal... Agent: Mcdermott Will & Emery LLP

20090218967 - Motor drive circuit: A motor drive circuit comprises positive and negative input terminals for connection of the motor circuit to a DC supply, a DC link filter connected between the input terminals: an electric motor having at least two phases, a plurality of motor drive sub-circuits, each connected to a respective phase of... Agent: Macmillan, Sobanski & Todd, LLC

20090218973 - Control of switched reluctance machines: A flux switching electric motor (102) is disclosed. The motor comprises a rotor (104), a stator (106), field windings (124, 126) and armature windings (128, 130). #A microcontroller (134) controls supply of electrical current to the field and armature windings. A rotor position sensor includes a divider for (i) receiving... Agent: The Black & Decker Corporation

20090218974 - Driving brushless dc (bldc) motors: The driving system for a tri-polar electric motor (100) comprises three phase windings (101u-101w). The winding drivers (102u-102w) drive each winding 101u-101w with a driving waveform (200) of the type shown in FIG. 2. The driving waveform (200) has a non-zero driving phase and intervals wherein the input is equal... Agent: Townsend And Townsend And Crew, LLP

20090218975 - actuator system: An actuator system, preferably for patient lifters, comprises at least one actuator (4) driven by an electric motor, a control unit having a power limiting circuit, and at least one handset having a plurality of keys. The actuator system is arranged such that the threshold value of the maximum permissible... Agent: Dykema Gossett PLLC

20090218976 - Motor driving apparatus: A motor driving apparatus comprises a charge/discharge control circuit for controlling charge to or discharge from a capacitor connected in parallel in a link section between a converter and an inverter, and a current control means for controlling discharge current from the charge/discharge control circuit. The current control means controls... Agent: Drinker Biddle & Reath (dc)

20090218977 - Electric drive system with redundancy: Circuit configurations for controlling an AC motor drive system wherein the control systems include redundancy features to compensate for possible failed system components.... Agent: Irving Keschner

20090218978 - Contact detection apparatus and pinch prevention apparatus: The contact detection apparatus includes a first electrode (430) made of a flexible conductive material and extending throughout a contact detection range, a second electrode (440) apart from the first electrode and extending on the back side of the first electrode, and detection means for detecting contact of an object... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090218979 - Optical head moving control apparatus and optical head moving control method: According to one embodiment, an optical head moving control apparatus according to one embodiment of the invention includes a stepping motor configured to be rotationally driven by a two-phase excitation scheme to move an optical head in a first direction and in a second direction opposite to the first direction,... Agent: Knobbe Martens Olson & Bear LLP

20090218980 - Ac motor controller: A system, method, and device for monitoring an AC induction motor are disclosed. The exemplary system provides the architecture of an intelligent motor controller. On one hand, the controller has self-commission and adaptive tuning capability and can provide smooth start and stop for motor driven systems. On the other hand,... Agent: Siemens Corporation Intellectual Property Department

20090218981 - Controlling switching of thyristors to reduce power loss in variable speed motor: Systems and/or methods that facilitate efficiently controlling speed of an induction motor are presented. An optimized control component controls respective switching of an auxiliary switch component associated with an auxiliary winding of the motor, a main switch component associated with a main winding of the motor, and a capacitance adjuster... Agent: Turocy & Watson, LLP