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Patent Searching and Data


Matches 501 - 550 out of 12,213

Document Document Title
WO/2015/050616A2
A method and apparatus for controlling operation of an electric motor. A controller is configured to identify a position of a disc relative to a plate with coils physically associated with the plate. The controller is further configured ...  
WO/2015/045529A1
Provided is a power conversion device that can be restarted by estimating the rotor position and frequency during idling when current does not flow when a coil is short-circuited during idling of an AC electric motor and also when a rota...  
WO/2015/046286A1
The present invention addresses the problem of periodic disturbances occurring in current, etc., due to offset error and gain error of a current sensor which is used in a control device. In the present invention, a voltage command value ...  
WO/2015/045169A1
A motor drive control device (1) according to the present invention comprises: a three-phase rectifier (10) for rectifying an AC voltage supplied from a three-phase AC power supply (6); a booster circuit (20) having a reactor (21), a swi...  
WO/2015/045013A1
The purpose of the present invention is to improve the shape of AC voltage waveform, in an energy conversion system capable of performing conversion between DC power and AC power, and conversion between AC power and mechanical force. Acc...  
WO/2015/033885A1
This invention provides an electric brake device that makes it possible to improve responsiveness and minimize increases in power consumption. Said electric brake device is provided with a brake disc, brake pads, an electric motor (2), a...  
WO/2015/028477A1
A vehicle system (10) is provided. The vehicle system comprises an electrical DC motor (11) driving a load (12), such as a hydraulic pump, and a control system (100) for controlling the speed of the electrical motor (11). The control sys...  
WO/2015/019653A1
The present invention relates to a motor control device for a vehicle used, for example, for an electric power steering control device which generates an assistive force with an electric motor as a driving source in accordance with a ste...  
WO/2015/012576A1
The present invention relates to a driving apparatus for a motor. The driving apparatus for the motor is provided with a rotor position detection unit for detecting position information of a rotor of the motor, a motor driving unit for d...  
WO/2015/011242A1
The invention pertains to a modular power bay intended for an aircraft comprising a plurality of electric machines (11), a plurality of inverters (10), and a control member (13b) configured to assign at least one machine (11) one or more...  
WO/2014/209360A1
A variable magnetization machine controller (100) comprises a current command module (102), a magnetization module (104) and a reducing current module (106). The current command module (102) computes a vector current command in a dq axis...  
WO/2014/209741A1
A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system i...  
WO/2014/199878A1
Provided is an electric-vehicle control device capable of effectively controlling a drive motor of an electric vehicle, without any delay in control timing during sudden acceleration and sudden deceleration of said motor. This electric-v...  
WO/2014/193551A2
A system for controlling a motor may include a motor driver circuit for driving a camera motor. A memory capable of storing a plurality of parameters for controlling the camera motor may also be included. A set of parameters from the mem...  
WO/2014/188264A2
An electronic control unit includes calculating a slip frequency of a rotating electric machine from a torque instruction value to the rotating electric machine and a target value of output efficiency to the rotating electric machine, ca...  
WO/2014/174865A1
Since rotational energy stemming from the inertial moment of a load and an induction motor when the induction motor decelerates is generated at a power conversion device, there is a need for a semiconductor switch for regenerated energy ...  
WO/2014/171233A1
Even given periodically steep changes in a command value (id*, iq*), which is the target value of a compensating current (Ic), this control device allows the voltage command value (Vid, Viq), and by extension the compensating current (Ic...  
WO/2014/171009A1
This control device for an AC rotary machine is provided with the following: an AC-rotary-machine control means that uses AC-rotary-machine position information to create a voltage-command vector so as to make a detected-current vector e...  
WO/2014/168797A1
In one example embodiment, a device for controlling an alternating current (AC) machine is disclosed. The device includes a processor configured to determine a plurality of instantaneous voltages (S550) corresponding to a plurality of ph...  
WO/2014/147111A1
The invention relates to a method for controlling a three-phase alternating-current machine, in particular for an electrically driven vehicle or a vehicle roller test stand. Optimal use of the alternating-current machine can be achieved ...  
WO/2014/135885A2
A motor drive circuit comprises a motor having a plurality of phases, a switching circuit comprising a plurality of electrical switches, a motor current controller that generates voltage demand signals to be passed to a drive circuit for...  
WO/2014/136166A1
Provided are: a motor control device capable of continuing drive control of an electric motor even if an open fault or short circuit fault has arisen in a motor drive circuit; an electric power steering device using the motor control dev...  
WO/2014/137432A1
A sensor (11) comprises an inductor (18) for sensing an alternating current signal component of an observed signal. The inductor (18) comprises a substrate, conductive traces associated with different layers of the substrate, and one or ...  
WO/2014/132395A1
A control device for an AC rotating machine having a permanent magnet comprises: a current detection means for detecting the rotating machine current flowing in the AC rotating machine; a current command setting means for setting and out...  
WO/2014/119492A1
Provided is a highly practical synchronous motor control device for an electric automobile that is capable of suppressing a torque ripple through simple arithmetic operations. A synchronous motor control device (1) for controlling a sync...  
WO/2014/109057A1
An energy assist system selection support device for supporting the selection of an energy assist system that includes a step-up and step-down chopper unit, an electricity storage unit, and a motor and drives a machine, the energy assist...  
WO/2014/097918A1
A control device (50) for controlling the drive of a brushless motor (3) configured with four poles and 24 slots, the control device (50) having: a fundamental-current calculation unit (52) for calculating a fundamental-wave current indi...  
WO/2014/090886A2
The present invention relates to the technical field of controlling converters. The invention relates to a control system (2) and a method for controlling a converter (1) in particular used for single-phase traction applications. The con...  
WO/2014/083833A1
[Problem] To make it such that the speed and temperature of a heater fan device can be controlled as desired. [Solution] A magnetism generation unit (10) is connected to an AC power supply and generates a magnetic field. A rotor (20) has...  
WO/2014/079658A1
The invention relates to a method for dispensing lubricating grease by means of a lubricant dispenser (1) in a metered manner, said lubricant dispenser having a lubricant cartridge (3) which is filled with lubricating grease (2) and has ...  
WO/2014/078607A2
A divided phase windings circuit includes motor divided phase windings, a power switch circuit comprising at least one power switch and a direct current (DC) supply circuit all at a midpoint of the divided motor phase windings, and a non...  
WO/2014/073365A1
Provided is a control device for an electric compressor capable of suitably controlling a motor in response to load variations having a complex frequency component even when controlling a motor using a sensorless system. The control devi...  
WO/2014/069188A1
Provided is a technique for driving a rotating electrical machine at an efficient operation point in accordance with a torque by appropriately controlling the current phase with a primary magnetic flux command value modified in accordanc...  
WO/2014/064981A1
A power conversion device comprises: a switching circuit for converting DC power to AC power; a current detector for detecting current flowing from the switching circuit to an AC electric motor; a coordinate convertor for converting the ...  
WO/2014/049694A1
[Problem] To suppress the effects of disturbances such as parameter fluctuations. [Solution] A motor controller comprises: a proportional-integral (PI) compensator (11) that generates a voltage command on the basis of a deviation between...  
WO/2014/049693A1
[Problem] To provide a current control system with high gain and wide band width. [Solution] A motor controller comprises: a proportional-integral (PI) compensator (11) that generates a voltage command on the basis of a deviation between...  
WO/2014/049867A1
A heat pump that has a compressor equipped with a motor for which sensorless vector control is possible even at a low rotation speed or under a low load is obtained while the cost thereof is suppressed. This heat pump device is equipped ...  
WO/2014/045760A1
A motor control device includes a switching element for controlling a motor, a current control unit for outputting a PWM signal to drive the switching element, and a setting unit for setting a carrier frequency for the PWM signal. Furthe...  
WO/2014/044526A2
The invention relates to a method for determining the phase currents of an electric machine having a current converter (20) and a stator having a phase count of four or more, wherein the phase currents of a measurement quantity of measur...  
WO/2014/041422A2
A control device (16) for a rotating electrical machine (12) having a stator coil and a rotor magnet (24), and a rotating electrical machine drive system including the control device are provided. The control device includes: a counter-e...  
WO/2014/037683A1
This invention relates to methods and devices for motor speed control. The invention has particular application in the control of motors over packet networks. In embodiments of the invention, phase-locked loop principles are used to remo...  
WO/2014/033201A2
A variable speed drive system employing an electric motor and a frequency converter arranged between an AC power source and the electric motor is operated. The frequency converter functions to convert AC power obtained from the AC power ...  
WO/2014/024059A2
A method of determining electromagnetic characteristics of an asynchronous motor system is described. A DC sequence is applied comprising DC vectors applied to different phases of the motor in turn. An AC sequence is also applied to diff...  
WO/2014/023736A2
Apparatus and method for dynamically adjusting an operating voltage for an electric motor (9), which operating voltage is provided by a modular voltage source (1), wherein, depending on a speed (n) of the electric motor (9), modules (2â€...  
WO/2014/019128A1
The present invention relates to a method for staring a permanent magnet synchronous motor, and comprises: a speed detection unit detecting a state of the motor when being started; if the motor is in a stationary state when being started...  
WO/2014/014642A2
A system and method for controlling an AC motor drive includes a control system programmed with an algorithm configured to optimize operation of the motor drive. Specifically, the control system is programmed to input an initial voltage-...  
WO/2014/013614A1
A voltage control unit (13) generates a d-axis voltage command value and a q-axis voltage command value on the basis of an operation command signal and a three-phase current. When the state in which the absolute value of the resultant ve...  
WO/2014/010020A1
Provided are a motor control device (100) and a motor system (10) that allow a robust control system to be constructed. This motor control device (100) is equipped with: a position/speed estimation unit (120) that outputs an estimated mo...  
WO/2014/006820A1
A motor driving device comprises: an inverter circuit having switching elements; and a control device for controlling the switching of the switching elements. The control device sets a carrier frequency to f1 when a two-phase modulation ...  
WO/2014/005749A2
The invention relates to a control device (1) for controlling an electronically commutated motor (3). The control device (1) is designed to supply the electronically commutated motor (3) with energy. The control device (1) is further des...  

Matches 501 - 550 out of 12,213