Electricity: motive power systems inventions 06/07

20070145917 - Rechargeable vacuum with reduced ac voltage: A motor is disclosed that operates on either AC outlet power or DC battery power with decreased power drop when switching between AC and DC power. The AC power to the motor may be stepped down by using a clipper circuit, while the DC power supplied to the motor may... Agent: Marshall, Gerstein & Borun LLP

20070145918 - Hybrid energy off highway vehicle propulsion circuit: A system and method for retrofitting a propulsion circuit of an existing Off Highway Vehicle to enable the propulsion circuit to operate as a hybrid energy Off Highway Vehicle propulsion circuit. The hybrid propulsion circuit includes a primary power source, and a traction motor for propelling an Off Highway Vehicle... Agent: Senniger Powers (gets)

20070145919 - Driving method and driver of brushless dc motor: A method of driving a brushless DC motor includes operations of rectifying an AC voltage of an AC power source by a rectifier circuit to which a capacitor is coupled between its output terminals and the AC voltage of the AC power source is input; driving the motor by an... Agent: Ratnerprestia

20070145920 - Fan system and speed detecting device thereof: A fan system includes a driving device, a speed detecting device and a logic device. The driving device generates a speed detecting signal and a predetermined alarm signal. The speed detecting device, which is electrically connected with the driving device, receives the speed detecting signal, and generates a low speed... Agent: Birch Stewart Kolasch & Birch

20070145921 - Systems and methods for regulating electrical adjusting mechanisms in motor vehicles: Driver-related electrical adjusting components in motor vehicles are regulated. An operator signal is generated based on a user actuating operator elements, to affect a desired movement of a vehicle component. The operator signal is processed in a control unit. An effect of the operator signal on movement of the vehicle... Agent: Crowell & Moring LLP Intellectual Property Group

20070145922 - Semiconductor integrated circuit: In order to set with a high precision the value of rush current flowing in the power switch circuit at the time of turning “on” the power, the internal circuit Int_Cir of the LSI is supplied with the internal source voltage Vint from the output transistor MP1 of the regulator... Agent: Miles & Stockbridge PC

20070145923 - Fan system and real-time stopping device thereof: A fan system includes a stator magnetic pole, a driving unit and a real-time stopping unit. The driving unit is coupled with the stator magnetic pole and controls a polarity change of the stator magnetic pole in accordance with a driving signal. The real-time stopping unit is electrically connected with... Agent: Birch Stewart Kolasch & Birch

20070145924 - Control apparatus for motor generator of hybrid vehicle: According to the invention, there is provided a control apparatus for a motor generator of a hybrid vehicle. The control apparatus includes a determiner, a comparator, and a controller. The determiner works to determine values of a first and a second parameter, which are defined in the same unit and... Agent: Oliff & Berridge, PLC

20070145926 - Control apparatus for electric vehicles: A control apparatus for a vehicle controls the input power of an AC motor to reduce the difference between a target value and detected value of the system voltage. When a rotation speed of the AC motor increases to be higher than a predetermined value or when a command value... Agent: Nixon & Vanderhye, PC

20070145927 - Control apparatus for electric vehicles: In an electric vehicle having a plurality of MG units each including an AC motor and an inverter, a control apparatus executes system voltage stabilization control to suppress variations in a system voltage by adjusting an input power of a first MG unit or a second MG unit so as... Agent: Nixon & Vanderhye, PC

20070145925 - Method and apparatus for providing torque limit feedback in a power drill: A battery-powered tool indicates to an operator that a torque limit has been reached. The tool comprises a driver circuit for generating motor interface driving signals, a motor interface circuit coupled to a motor to selectively couple power to the motor in accordance with the motor driving signals, a torque... Agent: Maginot, Moore & Beck, LLP Chase Tower

20070145928 - Electronic commutator circuits: The present invention provides an electronic commutator circuit for use with a stator winding of an electrical machine. The stator winding of the electrical machine includes a number of coils linked by the same number of points of common coupling. The electronic commutator circuit comprising the same number of switching... Agent: Kirschstein, Ottinger, Israel & Schiffmiller, P.C.

20070145929 - Vacuum pump: A vacuum pump includes at least one magnetic body located on a circle about a rotor rotational axis and having a Curie temperature within a rotor temperature monitoring range; an inductance detecting portion facing the circle so as to establish a gap between the circle and the inductance detecting portion,... Agent: Kanesaka Berner And Partners LLP

20070145930 - Robot controller: Motions of a robot are defined by a plurality of frames P0 to P11 at a plurality of different time points. The frames include a plurality of reference frames. In the reference frames, the robot stands alone without falling. The data of the other frames, i.e., frames other than the... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070145931 - Numerical controller: When a servomotor (control axis) is coasting and rotating in a servo-off state in which no current is applied to the servomotor, this servo-off state is switched over to a servo-on state in which current is applied to the servomotor, and a position control and a speed control are started.... Agent: Staas & Halsey LLP

20070145932 - Controller for machine tool: A controller for a machine tool, capable of performing ultraprecision machining with high accuracy by performing correction allowing for a displacement of a spindle produced depending on a rotational speed. When the spindle is rotated at high speed, the cutting position of a tool attached to the spindle varies due... Agent: Staas & Halsey LLP

20070145933 - Self-propelled apparatus: An object of the present invention is to provide a self-propelled apparatus that can conduct efficient performance by avoiding an obstacle in a more suitable manner. Concerning the self-propelled apparatus, rotation direction determination section determines rotation direction randomly, when obstacle that exists in a direction that is substantially the same... Agent: Crowell & Moring LLP Intellectual Property Group

20070145934 - Dynamic hysteresis for autofan control: A control signal value, such as a duty cycle value for a Pulse Width Modulated (PWM) generator output, for controlling and/or powering a fan may be calculated using an autofan function configured with dynamic hysteresis control (DHC). As part of the DHC, the PWM duty cycle value may be determined... Agent: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.

20070145935 - Method and apparatus for estimating the position of a moving part of a linear actuator: A method and an apparatus for estimating the position of a moving part of a linear actuator are provided. The method comprises the following steps. Move the moving part towards a target position. Receive magnetic signals generated by the magneto-resistive sensor of the linear actuator, which include a sine signal... Agent: Jianq Chyun Intellectual Property Office

20070145936 - Load and system: A load, including an electric motor and electronic circuit for powering the electric motor, the load being inductively powered.... Agent: Kenyon & Kenyon LLP

20070145937 - Braking system for electric step motors: The present invention concerns a braking system for electric step motors, which step motors operate in conjunction with a light assembly comprising a moving head for pan or tilt of the light assembly or operating in the lamp for moving internal optical components, which step motors during operation are connected... Agent: Roberts, Mlotkowski & Hobbes

20070145938 - Excitation system for synchronous machine: A synchronous machine regulator is provided to simplify an adjustment work of current distribution to thyristors, the synchronous machine regulator having a circuit board 32 mounting a gate drive circuit 33 for supplying a gate pulse to each of thyristor bridges constituting a plurality of thyristor rectifiers 44 connected in... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070145939 - Method for controlling ac motor: An inverter that supplies a desired primary voltage (v1) to an induction motor, a current detector that detects a primary current (i1) from the inverter to the induction motor, a voltage designation value calculating unit that generates a voltage designation value (v1*) for generating the voltage v1, an idling-time speed... Agent: Rabin & Berdo, PC

20070145941 - Motor driving apparatus of washing and drying machine: With the use of three inverter circuits controlled by a single processor, the controller of the motor-driving apparatus provides a rotation drum-driving motor, a compressor-driving motor and a blow fan-driving motor with a simultaneous sinusoidal-wave control. The configuration above offers stable sinusoidal-wave drive, reducing vibration noise of the rotation drum,... Agent: Ratnerprestia

20070145940 - Pwm signal generation apparatus and method thereof and motor control apparatus and method thereof: A PWM signal generation of the present invention includes a counter, a compare register, a comparator comparing a compare value of the compare register with a count value of the counter and outputting an identity signal, a PWM signal generation circuit determining a pulse width of a PWM signal according... Agent: Mcginn Intellectual Property Law Group, PLLC

20070138981 - Apparatus and method for controlling an energy flow between a solar energy source and an electric motor: The invention relates to an apparatus for controlling an energy flow between a solar energy source and an electric motor. An electrical circuit having an energy flow control device is arranged between the input side and the output side. In accordance with one aspect of the invention, the circuit has... Agent: Henneman & Associates, PLC

20070138982 - Device for the feeding of auxiliary operating facilities for a fuel-electrically driven vehicle: A device for the feeding of auxiliary operating facilities for a fuel-electrically driven vehicle with a combustion engine is stated, which device comprises a generator driven by the combustion engine and a rectifier connected with a generator on the AC voltage side, wherein the rectifier on the DC voltage side... Agent: Buchanan, Ingersoll & Rooney PC

20070138987 - Apparatus and method for driving motor: An oscillation frequency selecting section selects any of a first oscillation section and a second oscillation section, depending on whether a signal of a current-passage direction switching section is a forward rotation signal or a brake signal. When the second oscillation section has an oscillation frequency lower than that of... Agent: Mcdermott Will & Emery LLP

20070138986 - Control apparatus for electric motor and abnormality detection method for electric motor control: A high-level ECU generates a torque command value T1 according to an output request to an electric motor. A low-level ECU calculates a torque command value T2 for correcting the original torque command value T1 according to the operational state of the electric motor and, according to a final torque... Agent: Oliff & Berridge, PLC

20070138984 - Driving circuit of a fan: A driving circuit of a fan includes a magnetic pole sensor for generating a magnetic pole sensing signal, a first waveform generator coupled to the magnetic pole sensor for generating a first waveform according to the magnetic pole sensing signal, a second waveform generator for generating a second waveform, a... Agent: North America Intellectual Property Corporation

20070138983 - Method and inverter for controlling a direct current motor: A three-phase direct-current motor is controlled by cyclically repeating three first switching states. In each of the three first switching states, one of the three phases of the direct-current motor is periodically switched over between a first and a second input voltage, whereas the two other phases are continuously connected... Agent: Lerner Greenberg Stemer LLP

20070138985 - Method and system for selectively operating an electric motor: A method for selectively operating an electric motor in one of a first pole configuration and a second pole configuration is provided. The first pole configuration has a first phase winding structure, a second phase winding structure and a third phase winding structure. The method includes energizing each of the... Agent: Patrick W. Rasche (12552)

20070138988 - Centrifuge: A centrifuge including: a rotor rotating with a sample contained therein; a rotating shaft rotatably engaged with the rotor; a motor rotating the rotor and the rotating shaft; a belt transmitting rotational force of the motor to the rotating shaft; a rotor speed detecting unit detecting a rotation speed of... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070138989 - Fixed-position stop control apparatus for rotation shaft: A fixed-position stop control apparatus (10) includes: a move-instruction generating means (22) for generating a move instruction for each control cycle; a position loop control means (25) for position controlling a rotation shaft (61) for each control cycle according to the move instruction generated by the move-instruction generating means; and... Agent: Lowe Hauptman Berner, LLP

20070138990 - Multiple motor position control: A controller for motor activation providing accurate and repeatable position changes by pressing and releasing a push button switch. Repeatable position changes are made in an advance direction by triggering a digital counter for a predetermined number of cycles of a reference clock signal. Backlash in retard motion of the... Agent: Hamilton, Brook, Smith & Reynolds, P.C.

20070138991 - Pivoting apparatus of industrial robot: There is provided a pivoting apparatus of an industrial robot including: a brake 40 that is fixed to a motor shaft 30s of a motor 30 to halt the motor 30; an encoder 50 that is fixed to the motor shaft 30s to detect the pivoting angle of the motor... Agent: Sughrue Mion, PLLC

20070138992 - Medical robotic system with sliding mode control: A medical robotic system has a joint coupled to medical device or a slave manipulator or robotic arm adapted to hold and/or move the medical device for performing a medical procedure, and a control system for controlling movement of the joint according to user manipulation of a master manipulator. The... Agent: Patent Dept Intuitive Surgical, Inc

20070138993 - Drive circuit of direct-current voltage-driven magnetic contactor and power converter: In a direct-current voltage-driven magnetic contactor, a main contact is in an open circuit condition in an attraction period of an initial period of excitation by an operating coil, and in a closed circuit condition in a subsequent holding period, and a drive circuit includes a direct-current power supply voltage... Agent: Sughrue Mion, PLLC

20070138994 - Ac fan motor driving circuit having detecting current wave capability: A driving circuit of an AC fan motor has an AC to DC converter, a current detecting unit, a step-down divider, a motor driving unit, two windings each having many coils and a harmonic wave elimination unit. The AC to DC converter converts AC power to high voltage DC power.... Agent: Posz Law Group, PLC

20070138995 - Method for maintaining a direct voltage at the input of a dc/ac voltage converter, recording medium for this method, and electric vehicle: d

20070132409 - Field winding synchronous generator-motor: A field winding synchronous generator-motor includes: a power conversion section that is connected to an electric rotating machine and operating as a generator-motor, and that controls the electric rotating machine; a compensation amount storage section that stores a compensation capable of improving characteristics of the electric rotating machine from a... Agent: Sughrue Mion, PLLC

20070132410 - Control electronics for brushless dc motors: An electronic control circuit controls a brushless DC motor. It includes an input power supply control circuit. A microcontroller integrated circuit has control functions to control a brushless DC motor. Additional control functions are provided by software program instructions, which when executed, cause the microcontroller integrated circuit to perform additional... Agent: Lackenbach Siegel, LLP

20070132412 - Control systems and switch devices thereof: A control system for a motor. The control system and the motor receive an external power. The control system comprises a driver and a switch device. The driver is electrically connected to the motor. The switch device is electrically connected between the external power and the driver and turned on... Agent: Birch Stewart Kolasch & Birch

20070132411 - Multi-stage contactless switch: A multi-stage contactless switch, in particular for an operating element in a motor vehicle, has a movably arranged magnet and several Hall sensor elements spaced apart from each other. Each Hall sensor element is capable of activating a particular switching state depending on a magnetic field of the magnet as... Agent: Tarolli, Sundheim, Covell & Tummino L.L.P.

20070132413 - Speech activated door operator system: A barrier operator system, such as a garage door operator system, includes one or more remote control units, such as an inside remote control unit, an external wall mounted remote control unit and portable vehicle disposed remote control units which include speech recognition modules for recognizing spoken command signals to... Agent: Ip Section, Kenneth R. Glaser Gardere Wynne Sewell LLP

20070132414 - Control unit for electric power steering apparatus: In the present invention, only an abnormality of detection of a rotating direction of a motor is detected and therefore, with simple processing and by using a table for judging the abnormality of the detection of a rotating direction of a motor and the rotating direction of the motor, the... Agent: Sughrue Mion, PLLC

20070132415 - Method and apparatus for sensorless position control of a permanent magnet synchronous motor (pmsm) drive system: Methods and apparatus are provided for generating zero-sequence voltages based on voltage commands and a motor output signal. At least one of the methods includes, but is not limited to, receiving a torque command and generating three-phase voltage commands based on the torque command. The method also includes, but is... Agent: General Motors Corporation Legal Staff

20070132416 - Sprayer thermal protection: In an electric airless sprayer (16), as the motor (14) temperature approaches allowable limits, several performance cutbacks can be used to prevent overheating. The preferred method is to gradually reduce the controlled pressure. If the temperature continues to rise, the control (20) switches to on/off or deadband control. If the... Agent: Graco Minnesota Inc

20070132417 - Wiper control method and wiper control device: A wiper control method and a wiper control device are provided which can smoothly respond to rapid change of a rainfall situation at passage of a rainfall shutoff environment such as a tunnel. A wiping state control part 42 determines entry of a vehicle into the rainfall shutoff environment, sets... Agent: Ratnerprestia

20070132418 - Brushless motor control apparatus for pump: A brushless motor controller for use in a fuel pump detects a rotor phase based on an induced voltage in each phase coil of a brushless motor, and controls energization of the each phase coil based on the detected rotor phase. A control circuit of the controller is arranged to... Agent: Oliff & Berridge, PLC

20070132420 - Apparatus for moving center of gravity of robot, and system and method using the same: An apparatus for moving the center of gravity of a robot, and a system and method using the apparatus are provided. The apparatus includes a weight conveyor with a conveyed weight weighing a predetermined amount and disposed within the main body of the robot. The conveyed weight is conveyed in... Agent: Ladas & Parry LLP

20070132419 - Wheeled moving robot: A wheeled moving robot including a main body; wheels provided at least at opposite sides of the main body and configured to move the main body; an actuator configured to generate torque which rotates the wheels; a detector configured to detect whether the main body moves when the wheels rotates... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070132421 - Time constant automatic estimation method, time constant automatic estimation apparatus and servo motor control system: A time constant automatic estimation apparatus for automatically estimating a time constant at a time of acceleration of a servo motor including: an electric current value detection section for detecting a peak electric current value when the servo motor is operated in acceleration using a provisional time constant provided in... Agent: Drinker Biddle & Reath (dc)

20070132422 - Stepper motor stop and stalling detection method, and stop-detector-equipped stepper motor: A stop-detection method intended for a multi-phase synchronous geared motor that is controlled in a stepping mode, which measures the sum of the currents circulating in each of the N phases of the geared motor. In the method the stop detection threshold is calculated in relation to the change in... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070132423 - Position detecting device and synchronous motor driving device using the same: A position detecting device which can increase accuracy in detecting the pole position of a motor used to perform quick acceleration and deceleration over the range from a zero speed to a high rotation speed, and a synchronous motor driving device using the position detecting device. A position detector detects... Agent: Crowell & Moring LLP Intellectual Property Group

20070132424 - Motor driving control device: In a motor driving control device, a high-frequency alternating voltage or rotation voltage (having a frequency of ωh) is applied to a motor so that magnetic saturation occurs in the motor, thereby extracting, from a γ-axis current, a high-frequency second-harmonic component (a frequency component of 2×ωh) that is obtained by... Agent: Ndq&m Watchstone LLP

20070126377 - Method and system for supplying electrical power to a supply bus for an electric vehicle, recording medium, and vehicle for this method: P

20070126378 - Motor drive device: A motor drive device, for driving an electric motor having a bearing for rotatably supporting an output shaft, has a drive circuit which drives the motor when a voltage level at a signal input terminal of the drive circuit becomes greater than a threshold value. The voltage level at the... Agent: Harness, Dickey & Pierce, P.L.C

20070126379 - Manually operated brushless direct current motor: A manually operated brushless DC motor is disclosed herein, which is an educational electric motor and can overcome the shortcoming hard to visualize the movement of a motor due to the high-speed rotation of the motor. The manually operated brushless DC motor according to the present invention provides two switches... Agent: Birch Stewart Kolasch & Birch

20070126380 - Methods and systems for controlling an electronically commutated motor: A method for controlling the operation of an electronically commutated motor (ECM) is described. The method includes providing a pulse width modulated signal to an ECM controller and adjusting a duty cycle of the pulse width modulated signal to cause the ECM controller to regulate at least one of a... Agent: Patrick W. Rasche Armstrong Teasdale LLP

20070126381 - Fan system and stopping method for motor thereof: A fan system and a stopping method for the fan system are provided. The fan system is electrically connected to a power supply and receives the power therefrom. The fan system includes an energy storage apparatus, a motor and a start-up device. The energy storage apparatus receives and stores the... Agent: Birch Stewart Kolasch & Birch

20070126383 - Motor drive device and drive method: A reverse current detection unit detects the direction of the motor current during the synchronous rectifier period based on the polarity of the on voltage of a switching device contained in the motor current path, and outputs a reverse current detection signal representing the result of this detection to the... Agent: Ratnerprestia

20070126382 - Regenerative braking method for vehicle having electric motor: A regenerative braking method for a vehicle having an electric motor. During an initial stage of a regenerative braking operation related to the vehicle having the electric motor, a flow rate of brake liquid as much as the amount of regenerative braking is delivered into a reservoir through opened exit... Agent: Richard P. Berg C/o Ladas & Parry

20070126385 - Control apparatus for electric vehicles: In a control apparatus for an electric vehicle, an input power operation quantity that reduces the difference between a target value of a system voltage and a detected value of the voltage is computed, and a duty ratio of a rectangular waveform applied to an inverter is set at a... Agent: Nixon & Vanderhye, PC

20070126384 - Motor drive device and drive method: A rise in the power supply voltage as a result of a sudden speed reducing command causing the motor current to flow to the power supply is prevented. The motor drive device has a drive signal generating unit for generating a drive signal by an energizing control unit, PWM control... Agent: Ratnerprestia

20070126386 - Method and apparatus for movable element position detection in an electrically commutated machine: A method and circuit for detecting the position of the movable element of an electrically commutated machine. The method and apparatus allow detection of the back electromagnetic force (BEMF) waveform with all legs of the machine energized by mathematically removing the applied voltage from the measured voltage across the phases.... Agent: Mark J. Burns Haugen Law Firm Pllp

20070126387 - Control device for mobile body: A control system for a mobile robot is provided with a base body 53 and a plurality of link mechanisms 52 and 54 connected thereto. A sensor 90 for detecting external forces is provided on a predetermined portion (knee) between the base body 53 and a distal portion (foot) 58... Agent: Rankin, Hill, Porter & Clark LLP

20070126388 - Method and apparatus for adaptive motor speed control: A different adaptive control method is used to control a motor during each of two or more phases of motor operation. Thus, in a first phase of motor operation the motor is controlled using a first adaptive control method, in a second phase of motor operation the motor is controlled... Agent: Brinks Hofer Gilson & Lione/marvell

20070126389 - Positioning device: A positioning device for positioning a positioning element has a motor (18) that drives the positioning element (10) and has a measuring device that directly measures the positioning travel of the positioning element for controlling the motor (18). For this, a traction cable (32) is joined to the positioning element... Agent: Nath & Associates, PLLC

20070126390 - Control method for a synchronous motor, particularly for circulation pumps: The present invention relates to a control method for a synchronous electric motor with permanent-magnet rotor, particularly for fluid circulation pumps in conditioning systems and/or household appliances, wherein the application of predetermined voltage values to each of the windings (L1, L2) of the motor is provided, by means of a... Agent: Akerman Senterfitt

20070126391 - Vector controller for a permanent magnet synchronous motor, inverter module, and permanent magnet synchronous motor constant display system: A vector controller for a permanent magnet synchronous motor uses current command values and detected currents of the d-axis and q-axis, a calculated frequency, and motor constant settings to control the output voltage of a power converter; the motor constants are identified by use of active or reactive power obtained... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070126392 - Motor control apparatus and vehicle steering apparatus using the same: This invention provides a motor control apparatus and vehicle steering apparatus capable of determining whether the motor control CPU is normal or abnormal with an inexpensive structure. A monitor circuit 70 of an ECU 50 outputs a trigger signal trg based on an excitation signal of a motor resolver 42... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.