Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 551 - 600 out of 31,988

Document Document Title
WO/2015/141235A1
This power sensor has a magnetic element that has a magnetic film, which is patterned in an oblique direction at a conductor, a first element terminal, which is connected to one end of the conductor, and a second element terminal, which ...  
WO/2015/141482A1
Provided are a power steering device and a control device for a power steering device with which the amount of power consumption can be reduced. This power steering device comprises a current detection number setting circuit that: when a...  
WO/2015/140867A1
A motor drive control device comprises: a three-phase rectifier (11); a booster circuit (13) having a reactor (21), a switching element (23), and a reverse current prevention element (27) and boosting a DC bus voltage supplied from the t...  
WO/2015/136989A1
The present invention relates to a motor control device provided with multiple power systems, and to a motor control method. Each power system is provided with a winding group configured from windings corresponding to multiple phases and...  
WO/2015/136918A1
Provided is a motor control device capable of more reliably detecting a short-circuit failure of at least one of a motor current cut-off unit and a power supply cut-off unit independently with, for example, the driving status of a motor ...  
WO/2015/136976A1
The present invention relates to a control device, and a control method, of an electric motor which is provided with multiple power supply systems configured from an inverter and windings corresponding to multiple phases. If an abnormali...  
WO/2015/137035A1
In order to control an inverter motor with high efficiency and to stabilize torque at high motor speeds without increasing the amount of microcomputer computation, when a motor is at or above a prescribed rotation speed, an inverter thre...  
WO/2015/137372A1
The present invention relates to a drive device that drives electric apparatus such as synchronous motors and induction motors, and in particular relates to a drive device that performs a vector control on the basis of an inverter output...  
WO/2015/132064A3
The invention relates to a method for determining phase currents (Iu, Iv, Iw) in an electrical multi-phase system, comprising the following steps: generating pulse-width-modulated switching signals (S1...S6) for switching elements (T1......  
WO/2015/134077A1
A method and apparatus for controlling an electric motor. Power is transmitted to windings of the electric motor by wireless magnetic coupling between transmission coils and the windings.  
WO/2015/133520A1
[Problem] To reduce motor vibration and noise to a greater level than achieved in the prior art. [Solution] Provided is: an inverter (5) for driving a motor (2) using output voltages from driving elements (7U, 7V, 7W, 8U, 8V, 8W); a rect...  
WO/2015/133317A1
An inverter controller (3), wherein: a phase current calculating unit (11) calculates, using the results measured by a current sensor, a current in each phase passing through a motor; and a voltage instruction generation unit (12) calcul...  
WO/2015/129271A1
This invention makes it such that even if a malfunction occurs in a motor drive circuit, drive control of a polyphase electric motor can be continued without an electromagnetic brake acting on said electric motor. This invention includes...  
WO/2015/128103A1
The invention relates to an electric drive system with an n-phase electric machine, n>1, having at least two multiphase winding strands; a first inverter, the output connections of which are connected to the phase connections of a first ...  
WO/2015/129590A1
A hybrid supercharger (10) is equipped with: a first power conversion unit (12) having a function for converting direct-current power to alternating-current power and outputting the alternating-current power to a generator motor (30); a ...  
WO/2015/129042A1
A control device (10) converts phase currents (Iu, Iv, Iw) supplied to a permanent magnet rotating electric machine (11) into d-axis current (Id) and q-axis current (Iq) on the dq coordinate axis. Based on a torque command (T), the d-axi...  
WO/2015/129643A1
A control unit (40) controls a first power converter so as to make the speed of a power-generating electric motor coincide with a prescribed speed command. A speed command (N*) set by a high-rank control unit (50) is inputted to a smooth...  
WO/2015/131182A1
An induction motor controller is provided. The induction motor controller includes a first module that derives a commanded stator voltage vector, in a rotor flux reference frame, via a rotor flux regulator loop and a torque regulator loo...  
WO/2015/128104A1
The invention relates to an electric drive system, comprising an n-phase electric machine, n>1, which has at least two single-phase winding strands, a first inverter, the output connection of which is connected to the phase connection of...  
WO/2015/130908A1
Methods, systems and computer readable storage devices for a four quadrant voltage limiter that limits a commanded phase voltage to within a volt second capability of an inverter by maintaining a rotor flux and folding back a torque unde...  
WO/2015/129171A1
A motor drive device comprising: an inverter circuit (40) having a smoothing capacitor (70); a drive circuit unit (102) that outputs an operation signal to the inverter circuit; a control unit (101) that controls the drive circuit unit; ...  
WO/2015/128101A1
The invention relates to an electric drive system, having a 3⋅n-phase electric machine, n>1, which has at least two three-phase winding sections, a first power inverter whose output terminals are connected to the phase terminals of a f...  
WO/2015/128639A1
A motor bridge driver integrated circuit comprises a first set of input ports arranged to receive control signals from a first microprocessor,a second set of input ports arranged to receive control signals from a second microprocessor,an...  
WO/2015/128102A1
The invention relates to an electric drive system, comprising a 3n-phase electric machine, n>l, which has at least two polyphase phase windings, a first inverter of which the output terminals are connected to the phase terminals of a fir...  
WO/2015/125269A1
An AC rotating machine control device has: an AC rotating machine including first and second windings having a phase difference; a first current detection unit for detecting the current flowing through the first winding; a second current...  
WO/2015/124122A1
A novel frequency conversion system for a thermal power station, at least comprising a steam turbine (T) having an adjustable rotation speed, a water-feed pump (P), a generator (G), a speed change gear box (GB), frequency conversion buse...  
WO/2015/125541A1
The present invention relates to a drive control device and a drive control method for driving an electric motor having a plurality of winding sets each corresponding to a plurality of phases. According to the drive control device and dr...  
WO/2015/125543A1
The present invention relates to an electric motor drive control device equipped with a plurality of activation paths consisting of an inverter and windings corresponding to a plurality of phases and also to an electric motor drive contr...  
WO/2015/125586A1
A power converter control apparatus includes a pulse number determining unit 414 configured to determine the number of pulses in one electrical cycle, and a driving signal generator 416 configured to determine a percent modulation and a ...  
WO/2015/125591A3
A motor control system (100) include an inverter (30) configured to convert boosted direct-current electric power output from a boost converter (20) to alternating-current electric power and supply the alternating-current electric power ...  
WO/2015/125591A2
A motor control system (100) include an inverter (30) configured to convert boosted direct-current electric power output from a boost converter (20) to alternating-current electric power and supply the alternating-current electric power ...  
WO/2015/125330A1
The present invention relates to a control device and a control method for controlling an actuator that uses a brushless motor as a driving source, and provides an actuator control device capable of appropriately driving a brushless moto...  
WO/2015/122019A1
The purpose of the present invention is to improve the accuracy of excess temperature protection of an electric motor (1). A control device (7) controls an inverter main circuit (2) for driving the electric motor (1). A power conversion ...  
WO/2015/118767A1
The purpose of the present invention is to reduce surge associated with changing of switching states without increasing the torque ripple of a motor. A first switching signal (Sbp) for controlling the switching of a boost converter is ge...  
WO/2015/115217A1
Provided is an in-wheel motor drive device capable of accurately detecting abnormality in an entire output range of the motor by detecting the temperatures of a lubricating oil and a motor coil. The in-wheel motor drive device comprises ...  
WO/2015/107685A1
A power conversion device that performs variable-speed control of a permanent magnet synchronous electric motor and that is equipped with: a converter; a DC intermediate circuit having a smoothing capacitor; an inverter, which is equippe...  
WO/2015/107596A1
Providing this motor drive device (1) with an overcurrent detector (17) and an overcurrent adjuster (17a) prevents overheating in the drive device when a motor is overloaded. The overcurrent adjuster (17a) is provided with a regulator po...  
WO/2015/105093A1
A control device for electric motors that sets the range for feedback amounts used during control of electric motors, and applies said range as a determination threshold value for determining the presence of errors (such as missteps) in ...  
WO/2015/101370A2
Method of accumulating energy created by the brake resistor, based on the recovery device, connected to the power part of the frequency converter, detecting the excess electric energy, created in the generator mode of the drive, and conv...  
WO/2015/103626A1
A pumping system for use in hydraulic fracturing or fracing of wells. The pumping system is generally self-contained on a transportable system, such as a trailer. The weight and configuration of the trailer mast be sized to be hauled leg...  
WO/2015/097734A1
This power conversion device identifies pull-out from the phase of a command voltage and the phase of a current produced as a result thereof and as such is not affected by either an induced voltage that becomes smaller at low speeds or c...  
WO/2015/098537A1
The present invention relates to an electric motor drive device, and a control method thereof, which supplies one electric motor with power from both a first inverter and a second inverter. A control unit that controls the output of the ...  
WO/2015/097733A1
When acquiring an induced-voltage coefficient for a motor with unknown motor constants, there is the problem that if not enough information regarding said motor is available and it is difficult to estimate approximations for said induced...  
WO/2015/098942A1
The present invention addresses the problem of providing a motor driving device equipped with a compact and low-cost overvoltage protection means that protects the device from momentary overvoltages. In this motor driving device (10), wh...  
WO/2015/097533A1
A motor control system includes a motor, at least one current sensor, and a controller. At least one current sensor is configured to detect a current supplied to the motor and output the detected current as a current signal. The controll...  
WO/2015/096224A1
A motor controller integrated with drive, charging and discharging functions, comprising: a bidirectional DC-DC converter, a three-phase bridge DC-AC bidirectional converter, a drive-charging mode switching device, an AC power supply inp...  
WO/2015/090756A1
The present invention provides a device and a method for changing over an electric machine from the regular operating mode into the open-circuit mode. In order to avoid excessive increases in voltage and associated adverse effects on the...  
WO/2015/093230A1
 The purpose of the present invention is to determine the frequency of AC power, without providing a separate frequency detection section. An air conditioning control device (26) is provided with a voltage detection unit (24) for detec...  
WO/2015/092759A3
An electric motor, comprises a stator (2) provided with stator windings (4), a rotor (3) provided with rotor windings (5) and electronic means for electronic switching (7). Advantageously said rotor windings define inductive elements for...  
WO/2015/093850A1
A pre-charging system for a capacitor in a voltage inverter for an electric motor is provided. The system includes a microprocessor that generates a first control signal, and a pre-charging circuit coupled to the microprocessor. The pre-...  

Matches 551 - 600 out of 31,988