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Electricity: motive power systems

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
  
07/10/2014 > 15 patent applications in 13 patent subcategories.

20140191689 - Vehicle driving device: The rear wheel driving device 1 includes: an electric motor 2A connected to a left rear wheel LWr; an electric motor 2B connected to a right rear wheel RWr; and a control device 8 for controlling the electric motors 2A and 2B. The control device 8 controls the electric motors... Agent: Honda Motor Co., Ltd.

20140191690 - Construction machine and method of controlling turning electric motor: A construction machine includes a turning electric motor configured to drive a turning mechanism configured to cause an upper-part turning body to turn relative to a lower-part traveling body and a control unit configured to control driving of the turning electric motor. The control unit is configured to cause the... Agent: Sumitomo Heavy Industries, Ltd.

20140191691 - Control apparatus of vibration-type actuator and control method of vibration-type actuator: Provided is a control apparatus of a vibration-type actuator for generating an elliptical motion of contact portions by a common alternating current including a frequency determining unit for setting a frequency of the alternating current. The frequency determining unit sets the frequency of the alternating current for changing an ellipticity... Agent: Canon Kabushiki Kaisha

20140191693 - Power converter: A power converter includes an inverter, a contactor for connecting a battery to the inverter in order to supply DC power from the battery to the inverter and for disconnecting the battery from the inverter in order to stop an operation to supply the DC power from the battery to... Agent: Hitachi Automotive Systems, Ltd.

20140191692 - Synchronous energy source switching controller and method of operation thereof: The present invention relates to a motor assembly, a method of operation thereof and a transport vehicle provided with the motor assembly. The motor assembly is provided with an energy source switching controller that is in synchronization with motor operation and provides an improved utilization of energy storage sources in... Agent: Atieva, Inc.

20140191694 - Electronically commutated electric motor: The invention relates to an electronically commutated electric motor. The electronically commutated electric motor has a power output stage connected to a stator of the electric motor, and a processing unit connected to the power output stage. The processing unit is designed to drive the power output stage to produce... Agent: Robert Bosch Gmbh

20140191695 - Thermal protection method and system to maximize availability of electric drive system: An electric drive system may include a plurality of heat sensitive components, at least one temperature sensor positioned in or on each of the components and a system controller. The temperature sensors may be interconnected with the system controller to transmit temperature data from their respective heat sensitive components to... Agent: Honeywell International, Inc., Patent Services M/s Ab/2b

20140191696 - Rotating electric machine and method for controlling the rotating electric machine: A rotary electric machine includes a rotor that is arranged such that an axis of rotation of the rotor extends in a horizontal direction, a stator that is provided with an coil end on which coolant is supplied from a position above the coil end in a direction of gravitational... Agent:

20140191697 - Stator winding diagnostic systems and methods: Systems and methods are provided for diagnosing stator windings in an electric motor. An exemplary method for diagnosing stator windings in an electric motor involves determining an input energy imbalance across phases of the stator windings for an electrical period of the electric motor and identifying a fault condition when... Agent: Gm Global Technology Operations LLC

20140191698 - Method for actuating a polyphase machine: A method is described for activating a multiphase machine that has a link circuit equipped with a link circuit capacitor, phase windings, and one high-side switch and one low-side switch per phase. The switches associated with the individual phases have control signals applied to them by a control unit. The... Agent:

20140191699 - Motor control with voltage harmonic shaping: A control system for an electric motor (10) comprises a current sensing means (14) arranged to produce a current sensing output indicative of electric current in the motor, current control means (20) arranged to receive a current demand and to control voltages applied to the motor, and correction means (26)... Agent: Trw Limited

20140191700 - Operating state circuit for inverter and method for setting operating states of an inverter: The invention relates to an operating state circuit for actuating an inverter (3), which supplies an n-phase electrical machine (5) with an n-phase supply voltage via phase connections (4a, 4b, 4c), wherein n≧1, comprising an evaluation device (6) which is connected to the phase connections (4a, 4b, 4c) of the... Agent: Robert Bosch Gmbh

20140191701 - High performance electric machine without a collector: A high performance electric pulse motor without a collector, with an electronic control circuit, capable of performing either with direct current or with alternating current. The motor includes a magnetic circuit at its stator including a pair of stator polar pieces, an induction coil at each polar piece, and a... Agent:

20140191702 - Motor controlling device, motor controlling method and machinery system: A motor controlling device is provided. The device includes a position controller for generating a speed reference based on a positional reference and a motor position, a speed controller for generating a torque reference based on the speed reference and a motor speed, a motor drive for driving a motor... Agent: Kabushiki Kaisha Yaskawa Denki

20140191703 - Drive control device, electrical apparatus and drive control method: A drive control device is provided with a physical amount detection unit which detects the physical amount pertaining to the output of a motor, a rotational frequency determination unit for determining whether the rotational frequency of the motor is equal to or greater than a base rotational frequency, a threshold... Agent: Matsui Mfg.co.,ltd.

  
07/03/2014 > 30 patent applications in 28 patent subcategories.

20140184106 - Clamping device with an electric motor: The invention relates to a clamping device (1), for example swing tensioners (1), bracing elements, machine vises or block cylinders, with a movable clamping element (2) for clamping a workpiece with a defined clamping force, and with an electric motor (10) for mechanically driving the clamping element (2), also with... Agent: Ludwig Ehrhardt Gmbh

20140184107 - Switch driving circuit, inverter apparatus and power steering apparatus: A switch driving circuit electrically opens and closes a switch circuit including two N-channel type semiconductor switching elements series connected in a reverse direction, thereby electrically opening and closing a path between a DC power supply and an inverter circuit. The switch driving circuit has a reference potential point in... Agent: Kabushiki Kaisha Toshiba

20140184108 - Motor driving system: A motor driving system includes a first switch, a second switch, a third switch, a fourth switch, a first motor, a second motor, a third motor, and a fourth motor. The interconnections between all the switches allows the detection of any one of a number of motors as being unconnected,... Agent: Hong Fu Jin Precision Industry (wuhan) Co., Ltd.

20140184109 - Drive control circuit for linear vibration motor and method: A drive signal generating unit generates a drive signal used to alternately deliver a positive current and a negative current to a coil. A driver unit generates the drive current in response to the drive signal generated by the drive signal generating unit and supplies the drive current to the... Agent: Semiconductor Components Industries, LLC

20140184110 - Container with touch control arrangement: A touch control arrangement is arranged for a container having a foldable cover being folded between an opened position and a closed position via an actuation unit. The touch control arrangement includes a power source and a touch actuator electrically linked to the power source, wherein the touch actuator is... Agent:

20140184111 - Electric motor drive system capture and control apparatus for energy savings: An electric motor drive system capture and control apparatus for energy savings has an alternating current power source electrically connected to a direct current motor. A power rectifier diode rated for the alternating current power source and the direct current motor is electrically connected in a reverse bias mode between... Agent:

20140184112 - Method and apparatus of controlling driving of two-phase switched reluctance motor: Disclosed herein are a method and apparatus of controlling driving of a two-phase switched reluctance motor (SRM). The apparatus includes: a target speed arrival judging unit judging whether or not a current speed of the SRM has arrived at a target speed; a zero volt switching (ZVS) achievement judging unit... Agent: Samsung Electro-mechanics Co., Ltd.

20140184113 - Braking and auxiliary power converter: An integrated power converter includes first and second auxiliary switch modules, and one or more braking switch modules. The first auxiliary switch module is mounted at a first location of a laminated bus bar, and connects a first auxiliary lead with a first power layer and a second power layer... Agent: General Electric Company

20140184114 - Control apparatus for ac motor: An apparatus for controlling an AC motor driven by an inverter includes a two-phase calculator for calculating a two-phase control current value based on a first-phase current, a second-phase current, and a rotation angle of the motor, a one-phase calculator for calculating a one-phase control current value based on the... Agent: Denso Corporation

20140184115 - Apparatus for integrated circuit interface and associated methods: An apparatus includes an integrated circuit (IC) adapted to be powered by a positive supply voltage. The IC includes a charge pump that is adapted to convert the positive supply voltage of the IC to a negative bias voltage. The IC further includes a bidirectional interface circuit. The bidirectional interface... Agent: Silicon Laboratories Inc.

20140184116 - Apparatus for motor control system and associated methods: A motor control apparatus to control a motor external to the motor control apparatus includes a microcontroller unit (MCU). The MCU includes mixed signal motor control circuitry adapted to perform back electromotive force (EMF) motor control in a first mode of operation. The mixed signal motor control circuitry is further... Agent: Silicon Laboratories Inc.

20140184117 - Method and device for operating a brushless motor: A method and device for operating a brushless electric motor, having windings controlled by an inverter using six switches. The inverter includes three outputs that are associated with the windings of the electric motor. A respective power semiconductor switch is arranged between the outputs of the inverter and the windings,... Agent: Continental Automotive Gmbh

20140184118 - Low switch count ac-to-ac power converter: A load control device to control current flow to an AC load includes a circuit having line-side switches and floating-neutral side switches, along with a controller connected to the circuit that is programmed to control the circuit so as to cause each of the line-side switches and each of the... Agent: Eaton Corporation

20140184119 - Brushless direct contact motor driving device and method of controlling the same: There is provided a method of controlling a BLDC motor driving device, including aligning a rotor; storing alignment information of the rotor, determining whether the alignment of the rotor is correct or incorrect, and realigning the rotor based on the alignment information.... Agent: Samsung Electro-mechanics Co., Ltd.

20140184120 - Method and apparatus for estimating angles in a synchronous machine: The invention relates to an apparatus for estimating angles in a synchronous machine (11), having an angle sensor device (15) which is designed to determine event-discrete measured values for a rotor angle (φ) of a rotor of the synchronous machine (11) and to output a measurement signal dependent on the... Agent: Robert Bosch Gmbh

20140184121 - Motor torque control apparatus and method: A motor torque control apparatus and method are provided for reducing jolting and noise caused by an acceleration or tip-in operation in an electric or fuel cell vehicle and for improving response to acceleration by the acceleration or tip-in operation. The motor torque control apparatus includes a limiter operative to... Agent: Hyundai Motor Company

20140184122 - Construction machine: A construction machine includes: a swing structure (1d); an electric motor (16) that drives the swing structure; an operating device (4b) that outputs an operating signal according to an operating amount and an operating direction; an inverter device (13) that controls the electric motor based on a control signal generated... Agent: Hitachi Construction Machinery Co., Ltd.

20140184123 - Device for moving a movable furniture part, and piece of furniture: In a device for moving a furniture part, in particular a shutter, door or drawer, which is accommodated in a movable manner on a basic furniture structure, having an actuating drive, which, in a drive mode, is connected to the movable furniture part and drives the movable furniture part, and... Agent: Grass Gmbh

20140184124 - Computing device and method for protecting fan of computing device: In a method for protecting a fan of a computing device, firstly, a current supplied to the fan is read. Secondly, if the current supplied to the fan is more than or equal to a predefined current, a baseboard management controller(BMC) is controlled to send a pulse width modulation (PWM)... Agent:

20140184125 - Method and device for monitoring a torque of an electric motor: The invention relates to a method (40) for monitoring a torque of an electric motor (10), in particular for application in a motor vehicle, wherein the electric motor (10) is supplied with electric current (IS1, IS2, IS3) in multiple phases. A first torque value (M2) of the torque generated by... Agent: Robert Bosch Gmbh

20140184126 - Fan control circuit: A fan control circuit includes a hardware controller, a rectifier circuit, first to third electronic switches, and a fan. When the hardware controller outputs a pulse width modulation (PWM) signal to the rectifier circuit and the fan, the rectifier circuit transforms the PWM signal into a direct current (DC) voltage... Agent: Hong Fu Jin Precision Industry (shenzhen) Co., Ltd

20140184127 - Systems and methods for continuous adjustment of reference signal to control chip: The present disclosure is directed to a solution that provides for continuous adjustment of a reference signal to a control chip to facilitate controlling the average output power. In some aspects, a system may facilitate continuous adjustment of power provided to a device by providing a reference signal with a... Agent: I2systems Inc

20140184128 - Method and system for controlling gait of robot: A method includes determining whether a robot is walking and a direction in which the robot is walking; measuring an amount of time taken for a sole of a foot of the robot to step on the ground; calculating an imaginary reaction force applied to the sole using a trigonometric... Agent:

20140184129 - Multi-axis motor driving system and motor driving apparatus: A multi-axis motor driving system, including a plurality of motor driving apparatuses respectively connected to motors and each provided with a regenerative power consumption unit for consuming regenerative power generated from the corresponding motor. The plurality of motor driving apparatuses are connected to a common DC bus. The plurality of... Agent: Kabushiki Kaisha Yaskawa Denki

20140184130 - Mechanical equipment: The present invention discloses a mechanical equipment. The sensing member and the sensed member are mounted on the power device, and one of the sensing member and the sensed member is mounted on the output mechanism to move periodically as the output mechanism moving periodically. When each time the sensing... Agent: Shenzhen China Star Optoelectronics Technology Co., Ltd

20140184131 - Method and apparatus of controlling switched reluctance motor: Disclosed herein are a method and apparatus of controlling a switched reluctance motor (SRM). The method of controlling driving of an SRM, the method includes: sensing a variation of a load of the SRM; and controlling both of a dwell angle and a PWM duty ratio of the SRM according... Agent: Samsung Electro-mechanics Co., Ltd.

20140184132 - Switching process and associated control device: A method for switching the voltage supply for an alternating current electric engine between a supply from an ASD and a supply from an electrical network, the method comprises a stage for determining an ideal speed of rotation for the electric engine and for synchronising the phase and the amplitude... Agent:

20140184133 - Variable-flux motor drive system: A variable-flux motor drive system including a permanent-magnet motor including a permanent magnet, an inverter to drive the permanent-magnet motor, and a magnetize device to pass a magnetizing current for controlling flux of the permanent magnet. The permanent magnet is a variable magnet whose flux density is variable depending on... Agent: Kabushiki Kaisha Toshiba

20140184134 - Electric power control system and efficiency optimization process for polyphase synchronous machine: A system and process includes continuously determining an applied armature voltage supplied to a polyphase synchronous machine for which a maximum mechanical load is characterized by a pull-out torque. The armature voltage is supplied from a power source via one of many taps of a regulating transformer. The armature voltage... Agent: Utilidata, Inc.

20140184135 - System and method for compensating for high frequency application of ripple correlation to minimize power losses in induction machines: A method for minimizing power losses in an alternating current (AC) machine is provided. The method includes determining a first rotor flux signal based on signals of voltage and current inputs to the AC machine, and extracting a ripple component of the rotor flux signal. The method further includes determining... Agent: The Board Of Trustees Of The University Of Illinois

  
06/26/2014 > 18 patent applications in 17 patent subcategories.

20140176023 - Motor driving apparatus and system: A motor driving system includes a first driving controller, a second driving controller, a first motor, a second motor, a third motor, and a fourth motor. The first motor is electrically connected to the first output terminals of the first and the second driving controllers. The second motor is electrically... Agent: Hong Fu Jin Precision Industry (wuhan) Co., Ltd.

20140176024 - Battery system having an intermediate circuit voltage which can be set in a variable fashion: A battery system includes a battery, a DC voltage intermediate circuit connected to the battery, an inverter connected to the DC voltage intermediate circuit and an electric motor connected to the inverter. The DC voltage intermediate circuit includes a capacitor, and the battery includes a battery module line having a... Agent: Robert Bosch Gmbh

20140176025 - Energy retrieving device: An energy retrieving device includes a first rectifier circuit, a direct current (DC) link circuit, a second rectifier circuit, an energy retrieving unit, a motor controller, and a micro control unit (MCU). The MCU includes an energy retrieving control module, to control the energy retrieving unit to work according to... Agent: Foxnum Technology Co., Ltd.

20140176026 - System and method for system-level power point control of a photovoltaic device: Controlling a photovoltaic system includes providing a photovoltaic device having a variable DC voltage output and a variable DC current output. The photovoltaic device has a combination of a voltage output level and a current output level corresponding to a predetermined, desired power point. A DC power supply is connected... Agent:

20140176028 - Motor control device and work machine using the same: The controller estimates torque output by the motor and controls the current supplied to the motor in such a manner that a torque estimate of the motor obtained by the estimation corresponds to the torque command value. A torque estimation calculator 120 estimates the torque output by the motor. A... Agent:

20140176030 - Motor drive apparatus: A motor drive apparatus comprises: a position signal generation portion that generates a position signal corresponding to a rotor position of a brushless DC motor; and a logic portion that when starting the brushless DC motor, disposes a non-energizing period immediately after starting forced commutation at a phase switchover timing... Agent: Rohm Co., Ltd.

20140176031 - Back electromotive force detection circuit and motor driving control apparatus using the same: There are provided a back electromotive force detection circuit and a motor driving control apparatus using the same. The back electromotive force detection circuit includes a duty determining unit and a delay compensation unit. The duty determining unit outputs a differential level according to a duty of a driving control... Agent: Samsung Electro-mechanics Co., Ltd.

20140176027 - Control system for three-phase rotary machine: In a system, a triangular carrier wave is compared in magnitude with first and second two-phase modulated command signals. Based on a result of the comparison, on-off operations of the high- and low-side switching elements of two phases of a three-phase inverter corresponding to the first and second two-phase modulated... Agent: Denso Corporation

20140176029 - Vehicle and control device for vehicle: On a vehicle, a converter converting and outputting a voltage, an inverter converting DC power output from the converter to AC power, and a motor driven by AC power supplied from the inverter are mounted. A control device for this vehicle controls the inverter in a control mode selected in... Agent: Toyota Jidosha Kabushiki Kaisha

20140176032 - Back electromotive force detection circuit, and motor driving control apparatus and motor using the same: There are provided a back electromotive force detection circuit, and a motor driving control apparatus and a motor using the same. The back electromotive force detection circuit includes: a voltage generating unit generating a voltage in inverse proportion to a duty ratio of a pulse width modulation (PWM) signal; a... Agent: Samsung Electro-mechanics Co., Ltd.

20140176033 - Driving circuit, driving module, and motor driving apparatus: There is provided a driving circuit including: a signal delay unit including a first delay unit delaying a high level input signal in a case in which an input signal has a high level, and a second delay unit delaying a low level input signal when the input signal has... Agent: Samsung Electro-mechanics Co., Ltd.

20140176034 - Motor drive system: A motor drive system includes a first interlock mechanism configured to be activated in response to transition to an operable state of an interruption device, to open an open/close device, a second interlock mechanism configured to be activated in response to transition to an openable state of a case containing... Agent: Toyota Jidosha Kabushiki Kaisha

20140176035 - Motor driving control apparatus, motor driving control method, and motor using the same: There are provided a motor driving control apparatus, a motor driving control method, and a motor using the same. The motor driving control apparatus includes a controller, a duty ratio calculation unit, and a driving signal generation unit. The controller generates a speed control signal by using at least one... Agent: Samsung Electro-mechanics Co., Ltd.

20140176036 - Motor control apparatus and motor control method: A motor control apparatus includes a state quantity detector configured to output a detection signal in correspondence with a state quantity of a motor, a vibration detection unit configured to detect a disturbance vibration component of the motor based on a torque instruction and the detection signal and output a... Agent: Kabushiki Kaisha Yaskawa Denki

20140176037 - Control unit of actuator: A control unit is configured to control driving of an actuator using an output of a rotary encoder having a rotator with a pattern row. The control unit includes a memory configured to store correcting information used to correct an arrangement error of the pattern row, and a controller configured... Agent: Canon Kabushiki Kaisha

20140176038 - Positioning method and positioning device: The present disclosure provides a positioning method and a positioning device. The positioning device includes: an emitter for emitting light beams to a to-be-positioned point and auxiliary positioning points; a receiver for receiving reflected light beams reflected by the to-be-positioned point and the auxiliary positioning points; a judging module for... Agent: Shenzhen China Star Optoelectronics Technology Co., Ltd.

20140176039 - Motor control device and control method of stepping motor: There is provided a motor control device controlling an energizing state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a detecting unit configured to detect whether the stepping motor is out of step, and a reverse rotating unit... Agent: Minebea Co., Ltd.

20140176040 - System and method for saving energy when driving masses having periodic load variations: A system and method are described for conserving energy by decoupling a supply voltage to an electric motor operating under periodic load variations. A time segment value corresponding to a duration of periodic load variations is obtained and the supply voltage is adjusted to maintain an observed phase angle for... Agent:

  
06/19/2014 > 21 patent applications in 16 patent subcategories.

20140167657 - Battery system, battery control device, electric vehicle, mobile body, and power source device: A battery module group includes a plurality of battery groups. Each battery group includes a plurality of battery modules. Cell information is supplied from each battery module of the battery module group to a charge/discharge controller. The charge/discharge controller controls the turning on and off of a plurality of switching... Agent: Sanyo Electric Co., Ltd.

20140167656 - Battery system, electric vehicle, movable body, power storage device, and power supply device: Provided is a battery system capable of accurately calculating a state of charge of a battery cell, an electric vehicle, a movable structure, an electricity storage device, and a power supply device. A current-based SOC calculation unit calculates a current-based SOCi on the basis of current flowing in a battery... Agent: Sanyo Electric Co., Ltd.

20140167654 - Circuit arrangements and methods for operating an electrical machine: A circuit arrangement is described comprising a first battery; a second battery; an electrical machine connected between the first battery and the second battery wherein the electrical machine is connected to the first battery via a first switching arrangement and the electrical machine is connected to the second battery via... Agent: Infineon Technologies Ag

20140167655 - Secure battery element: A battery element includes series-connected electrochemical accumulators applying a difference in potential between first and second poles, two power output terminals, and a securing device. The securing device comprises first and second switches connected in series between the first and second poles. The first switch is a normally-closed switch, and... Agent:

20140167658 - Method of controlling air blower of fuel cell vehicle: A system and a method of controlling a blower of a vehicle. The method includes detecting, by a controller, a turning of a key to an off position of the vehicle. In addition, the controller is configured to detect whether a high voltage DC-DC converter and a high voltage battery... Agent: Hyundai Motor Company

20140167659 - Motor control device and motor control method: In an αβ coordinate system, vectors of currents flowing in three-phase AC motor are set in directions fixed relative to a zero vector current according to a voltage applied in six non-zero vector switching modes of an inverter. A current vector closest to a command current value is specified from... Agent: Denso Corporation

20140167662 - Inverter device: An inverter device that controls a motor using a signal from a position sensor for detecting a rotor rotational position of the motor includes an initial adjustment unit that outputs a phase of current for designating a motor rotational position by rotating the motor in a clockwise direction of the... Agent: Hitachi Automotive Systems, Ltd.

20140167663 - Load drive control system for hybrid vehicle and method of controlling hybrid vehicle: A load drive control system for a hybrid vehicle includes a zero current control execution device and an error compensating device. The zero current control execution device is configured to control a converter to output a substantially constant raised voltage that is higher than an inductive voltage generated in an... Agent: Honda Motor Co., Ltd.

20140167664 - Method and device for synchronizing a rotation speed of a rotor with a rotation field of a stator: A method for synchronizing a rotation speed of a permanently excited rotor of an electric motor with a frequency of a rotation field of a sensorless commutated stator of the electric motor during a run-up procedure of the electric motor includes determining a phase position of the rotation field and... Agent: Robert Bosch Gmbh

20140167665 - Safety circuit and emergency power supply for gate control circuit: A power supply circuit can be used to provide an alternating-current supply voltage to an electric motor. The power supply circuit is supplied by line power. The power supply circuit includes a inverter including at least one pair of transistor for generating a corresponding phase of the plurality of power... Agent: Infineon Technologies Austria Ag

20140167666 - Systems and methods for reduction of motor jitter while driving an electric motor: An apparatus for driving a motor comprises a drive signal generation circuit configured to produce pulses on a pulse-width modulated drive signal in response to a control signal. A detection circuit is coupled to receive a commutation signal from the motor to monitor the speed of the motor. A control... Agent:

20140167660 - Inverter device: In the inverter device that receives DC power from the DC common bus and drives a load, the configuration is such that the switching element is arranged on the first current path in which current flows through the positive-side DC terminal during powering, the reverse-connected diode is arranged on the... Agent: Mitsubishi Electric Corporation

20140167661 - Power conversion system: This disclosure relates to a power conversion system to power a variable impedance load with a variable power source, the power conversion system comprising a power converter including input terminals adapted to receive variable power from the variable power source and output terminals providing a converted power to the variable... Agent:

20140167667 - Motor driving apparatus and method: There are provided a motor driving apparatus and method, the motor driving apparatus including a current detecting unit detecting a level of a driving current applied to a motor for each predetermined period, a current comparing unit comparing the level of the driving current detected by the current detecting unit... Agent: Samsung Electro-mechanics Co., Ltd.

20140167668 - Motor driving control apparatus, motor driving control method, and motor using the same: There are provided a motor driving control apparatus, a motor driving control method, and a motor using the same. The motor driving control apparatus includes a driving signal generation unit, a back electromotive force detection unit, and a frequency controller. The driving signal generation unit may generate a driving control... Agent: Samsung Electro-mechanics Co., Ltd.

20140167669 - Offset compensation method of current sensor and motor driving system: An offset compensation method of a current sensor is provided for determining whether an offset compensation of the current sensor is abnormal, and a motor driving system includes the current sensor. The offset compensation method includes: compensating for an offset of the current sensor, and determining whether the offset compensation... Agent: Hyundai Motor Company

20140167670 - Method and device for the cyclic digital transmission of a position value of a moving object with inertial mass: In a method and device for the cyclic digital transmission of a position value of a moving object with inertial mass, the value range of the transmitted position value is restricted such that no complete rotation or, in the case of a linear motion, other complete period caused by mechanical... Agent: Sew-eurodrive Gmbh & Co. Kg

20140167671 - Motor position controller: A motor position controller includes a temporary setting portion, a position command generating device, a motor controlling part, and a second conformity determination portion. The motor position controller drives a motor based on an input of a command pulse signal and a setting of a desired pulse form. The temporary... Agent: Kabushiki Kaisha Yaskawa Denki

20140167672 - Servo controller for correcting position error when moving member reverses: A servo controller (10) includes a reversal change calculating part (24) which uses the position of a moving member (19) as the basis to calculate the amount of change of the position of the moving member, a distance calculating part (25) which uses a position of the moving member as... Agent: Fanuc Corporation

20140167673 - Power saving driving circuit including power factor correction for an induction motor: A power saving driving circuit for a motor including power factor correction comprises an induction motor; a power factor correction capacitor; a first switching element allowing the motor to operate in a positive sine wave period of an power supply voltage; a diode allowing the power factor correction capacitor to... Agent:

20140167674 - System for determining a magnetizing curve and rotor resistance of an induction machine and method of making same: A system for identifying magnetizing inductance and rotor resistance of an induction machine comprises an induction machine comprising a rotor and a stator, a DC voltage bus, and a DC-to-AC voltage inverter coupled to the DC voltage bus and to the induction machine. The system also comprises a controller configured... Agent: Eaton Corporation

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