Electricity: motive power systems inventions 04/06

20060087263 - Apparatus and method for controlling motor in washing machine: An apparatus for controlling a motor in a washing machine, which includes a speed sensor for measuring speed of the motor, and a controller that compares the measured speed with a target speed to estimate a motor power applied to the motor, adjusts a running rate of the motor according...

20060087264 - Motor control circuit and method thereof: A motor control circuit and method thereof serving a coil for controlling the motor. The motor control circuit comprises a separated signal generating circuit generating a separated signal and a comparator comparing a first phase signal from a Hall element or a second phase signal from a phase signal generating...

20060087265 - Systems for managing electrical power: Certain exemplary embodiments comprise a system comprising a plurality of Active Front End units adapted to be electrically coupled to a direct current (DC) bus. Each of the plurality of Active Front End units can be adapted to be electrically coupled to a separate winding of a transformer of a...

20060087266 - System-on-chip for high voltage applications: A system-on-a-chip (SOC) in CMOS technology capable to support high voltage applications has been achieved. The single chip system of the present invention comprises high-voltage circuitry, a complete micro-controller system including all timing control, interrupt logic, flash EEPROM program memory, RAM, flash EEPROM data memory and I/O necessary to implement...

20060087267 - Motor controller: A DC power supply, a DC motor driven by DC voltage outputted from the DC power supply, and a control unit outputting a drive control signal to drive the DC motor are provided. A motor drive switch is provided between the DC power supply and the DC motor, and a...

20060087269 - Electric power steering apparatus and electricity supply system: A transformer section transforms a primary voltage and outputs secondary voltage. A control section inputs a first signal indicating a state of electricity supply of a primary power source through an in-vehicle network. The transformer section outputs a second signal indicating a state of electricity supply of the transformer section....

20060087268 - System for electrically regulating the movement transmission device for a motor vehicle: The invention concerns a system for electrically regulating a power transmission device between the heat engine and a pair of electrical machines and the drive wheels of a motor vehicle, the heat engine being connected to the two electrical machines via a mechanical assembly, while an electrical connection device located...

20060087270 - Method of controlling an electric motor with oscillating output shaft, particularly for automobile wiper systems, and the arrangement of that electric motor: The stator casing (3) of the motor is part of its gear box (for example its extension) and is in the shape of an open cylinder, into which is inserted the lid (4) of the stator with a bearing (5) for positioning one end of the shaft (1). Into the...

20060087271 - Frequency stabilizer circuit for window covering control chip clock: A logic chip that controls the motor of a motorized window covering or other object includes a clock. A frequency stabilizer circuit is provided to receive input voltage and to output to the clock a current that is a function of the voltage and temperature over a range of input...

20060087272 - Swing door opening/closing detection system: The present invention provides a swing door opening/closing detection system capable of accurately discriminating an opening/closing position of door main bodies to accordingly prevent the malfunction of the door main bodies. The swing door opening/closing detection system includes: door main bodies 12, 14 which are rotatably provided and which rotate...

20060087273 - Robot cleaner system and a method for returning to external recharging apparatus: A robot cleaner system and a method for the robot cleaner to return to an external recharging apparatus. The robot cleaner system has an external recharging apparatus including a charging stand having a charging terminal, and a plurality of transmission parts for sending signals having different codes and strengths; a...

20060087274 - Methods and systems for reducing unintentional collisions: A method for differentiating if a feedback signal is a result of an unintentional collision in a servo system includes injecting a feed forward term in the servo system....

20060087275 - Gain adjusting method for servo control device: An object of this invention is to provide a gain adjusting method in a servo control device to suppress changes according to a place where a machine is located. This invention provides a gain adjusting method for a servo control device providing speed control of inputting a difference between speed...

20060087276 - Stepping motor driving system and stepping motor driving process: A stepping motor driving system and process according to the present invention controls a switching element in such a manner that motor supply current is passed through a motor coil until a coil current detection value reaches an upper limit set point, motor reflux current is passed through the motor...

20060087277 - System and method of restarting a switched reluctance motor after a rapid cycling of power: A system and method of restarting a switched reluctance motor after a cycling of power provided to the motor is provided that includes receiving at the motor a power-off signal followed by a power-on signal, determining a rotational speed of a rotor, and energizing a stator only when the rotational...

20060087278 - Methods for managing electrical power: Certain exemplary embodiments comprise a system comprising a plurality of Active Front End units adapted to be electrically coupled to a direct current (DC) bus. Each of the plurality of Active Front End units can be adapted to be electrically coupled to a separate winding of a transformer of a...

20060082334 - Energy conversion systems: This invention relates to apparatus for the conversion of massfree energy into electrical or kinetic energy, which uses in its preferred form a transmitter and a receiver both incorporating Tesla coils, the distal ends of whose secondary windings are co-resonant and connected to plates of a chamber, preferably evacuated or...

20060082336 - Drive control device of motor and a method of start-up: A drive control device of motor capable of starting up even a motor of such a type that the polarity of induced voltage does not switch every 180° of electrical angle or the polarity, positive or negative, does not occur with accuracy without causing a reverse rotation is provided. In...

20060082335 - Method for detecting rotor angle of dc brushless motor and controller of dc brushless motor: A method and an apparatus accurately detect a rotor angle of a DC brushless motor by using a first-order difference of a detected value of a phase current. A periodic signal causing the total sum of output voltages in three control cycles to become zero is superposed over a drive...

20060082337 - Delay-based access control apparatus and method: An access control mechanism such as a movable barrier operator (70) has a first time window unit (72) that is responsive to one or more triggers (71) (such as a delayed-closure button). An event detector (73) then monitors for one or more events of interest during a corresponding first time...

20060082338 - Window anti-pinch system activating method: A method for activating an anti-pinch system for a vehicle window regulator, sunroof or driving mechanism includes the steps of starting a motor of the driving mechanism, waiting for a given rotation of the motor and a given time period, and then activating the anti-pinch system. This allows for close...

20060082339 - Brushless dc motor driving method and apparatus for it: A rectangular wave or a waveform similar to the rectangular wave is output with an conductive angle no less than 120° but no more than 150° during low-speed operation, but output a rectangular wave, a sine wave or a waveform similar to them with an conductive angle no less than...

20060082340 - Robot with learning control function and method for controlling the robot: A robot with a learning control function for improving the accuracy of the trajectory of an end effector and a method for controlling the robot. An acceleration sensor and a vision sensor are attached to the end effector of the robot. In this state, the motion of the end effector...

20060082341 - Split phase polyphase inverter: A split phase DC to AC polyphase inverter having M phases for driving an M-phase load includes, for each phase, N subphases for producing N PWM signals at a carrier frequency. Associated with each of the M phases is one of M averaging transformers. The N PWM signals associated with...

20060082342 - Control magnetic bearing device: A control magnetic bearing device comprises a plurality of control magnetic bearings for contactlessly supporting a rotor, an electric motor for rotating the rotor, a magnetic bearing drive circuit for driving the magnetic bearings, an inverter for driving the electric motor, a main control circuit for controlling the magnetic bearing...

20060076911 - Motor driving apparatus and motor driving method: A motor driving apparatus includes a comparator, a threshold controller, a position determining unit, a phase-switching controller, and a current output unit. While the rotor is stopped, the phase-switching controller supplies a predetermined phase of winding with a current pulse having a predetermined pulse width so as not to cause...

20060076910 - Sensorless motor driving device: In a sensorless motor driving device for driving a motor by controlling the energization of the coils of individual phases of the motor according to the result of detecting the position of the rotor of the motor without using an external sensor, before the motor is started, which phase to...

20060076912 - Start-up circuit for dc fan: A start-up circuit which decreases a start-up current and stabilizes running of a DC fan. The start-up circuit includes a digital-analog converter for convert a digital control signal from a control chip to an analog control signal, a voltage sampling device connected to an output terminal of the digital-analog converter,...

20060076913 - Method and apparatus for controlling a dc motor by counting current pulses: A system includes a motor for producing motion when current is supplied to the motor and a motor controller coupled to the motor for receiving a motor current signal indicative of the current supplied to the motor. The motor controller has an analog-to-digital converter for converting the motor current signal...

20060076915 - Method for steering and regulating the driving dynamics in vehicles with hybrid drive: A method for steering and regulating a driving mechanism in motor vehicles having hybrid drive. A drive torque (M) desired by the driver is distributed to at least one electric motor (Em) and a combustion engine (Vm) so that therewith the driving mechanism of the vehicle can be steered, together...

20060076914 - Motor drive apparatus having oscillation-reducing control function for output torque: Under oscillation-reducing control executed while PWM control is performed, an oscillation-reducing torque that is opposite in phase to a varying component of the motor revolution number is generated and, a final torque command value that is the sum of the oscillation-reducing torque and a torque command value is used to...

20060076916 - Position-dependent friction compensation for steering systems: A method is for compensating for a rotor angle deviation of a motor, which may be used as an actuator, e.g., as a servo actuator, in a steering system. The rotor angle deviation is compensated for by a piecewise linearized control of the difference between a desired rotor angle, which...

20060076917 - Method compensating gyro sensor for robot cleaner: A method of compensating a gyro sensor of a robot cleaner is provided. The method includes changing to a compensation mode if a robot cleaner travels greater than a compensation reference, and compensating an output value of the gyro sensor by use of an upper camera....

20060076918 - Servo system for a two-dimensional micro-electromechanical system (mems)-based scanner and method therefor: A servo control system micro-electromechanical systems (MEMS)-based motion control system (and method therefor), includes a motion generator having an inherent stiffness component....

20060076919 - 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...

20060076920 - Evaluation device and method for rotary drive, corrective manipulated variable setting device and method, control device and method, and program: An evaluation device for a rotary drive that evaluates periodic velocity fluctuation of the rotary drive is provided. The evaluation device includes a rotational velocity fluctuation detector, a reference signal generator, and a multiplier-accumulator. The rotational velocity fluctuation detector detects rotational velocity fluctuation relative to a reference velocity of the...

20060071618 - Power supply controller apparatus for detecting welding of contactors: A power supply controller apparatus is provided for use in a power supply apparatus including a battery assembly. The power supply controller apparatus includes a controller that controls supplying power to a load from said battery assembly through a capacitor connected between first and second contactors by turning on and...

20060071619 - Modular motor converter for window covering systems: A window covering system includes a window covering, a motor having a housing and a power supply inlet, for opening or closing the window coverings, and a modular motor converter. The modular motor converter includes a low voltage interface for functional attachment to the motor, a housing for the low...

20060071620 - Model train direction control device: A model train on-board microprocessor provides basic lighting and motor operation and control. A socket provides a seamless instant remote control upgrade using industry standard remote control devices. The device provides new and useful functions and features for more prototypical operation by augmenting the industry standard remote control device capabilities....

20060071621 - Motor driving device, motor to be driven by the same device, and apparatus using the same motor: A motor driving device includes a motor having three-phase driving coils, a power feeder for powering the coils, and a power feeding controller for controlling a power feeding method. The controller controls electrical potentials of the coils in a period of applying a voltage to the coils to be a...

20060071622 - Ultra-compact, high-performance motor controller and method of using same: Featured is a controller for a motor that is ultra-compact, with a power density of at least about 20 watts per cubic cm (W/cm3). The controller utilizes a common ground for power circuitry, which energizes the windings of the motor, and the signal circuitry, which controls this energization responsive to...

20060071623 - Method and apparatus for controlling a variable speed fan in an image forming device: An improved variable speed fan controller for use in devices such as laser printers. The controller automatically adjusts its output signal to fans such that a fan quickly settles into an appropriate operating speed, even if the fan has been newly installed into the equipment. The controller can store values...

20060071624 - System and method for using a capacitive door edge sensor: A system and method for sensing capacitance at the edge of a movable barrier and for detecting an obstruction includes positioning a conductive member within or about a holder. A sensed capacitance between the conductive member and ground. A controller is coupled to the sensor. The controller determines whether an...

20060071625 - Robot arm control method and control device: When either a command value or an actually measured value is appropriately selected as an angular velocity used for the frictional torque calculation, the frictional compensation can be made valid at all times in both the case in which a robot is actively operated according to an angular velocity command...

20060071626 - Direct current and alternating current motor and generator utilizing a periodic transformation system: In an AC or DC motor operation and power generation system, a periodic transformation system reduces or prevents harmonic distortion, reduces resistance or impedance, and improves energy efficiency in a signal either consumed, such as in a motor, or produced, such as in a generator. In one embodiment, the TruScale...

20060071628 - Motor and drive control device therefor: The invention provides a motor for a brushless DC motor, which has small torque ripple even if a trapezoidal wave current is supplied and has a small size and reduced motor noise, and a drive control device for the motor as well as an electric power steering device using the...

20060071629 - Motor controller: A system and method for controlling an electric motor is disclosed. The method comprises determining the operating load of the electric motor and then calculating the voltage to be applied to the electric motor in response to the operating load. The voltage to be applied operates the motor in...

20060071627 - Motor current reconstruction via dc bus current measurement: A technique for reconstructing phase currents based on measurements of a DC bus current. Non-observable regions of DC bus current samples to reconstruct phase currents are reduced in size by using two phase space vector modulation. The non-observable regions can be further reduced by omitting deadtime insertions for switch actuations...