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Matches 1 - 50 out of 24,931

Document Document Title
WO/2018/185668A1
The present invention relates an electric machine of a vehicle (100), and more particularly, the present invention relates to a controller equipped with switches for the electric machine of a vehicle (100). The rotating magnetic field is...  
WO/2018/186061A1
A pump control device according to the present invention is provided with: a temperature information acquisition unit for acquiring temperature information indicating the temperature of oil to be circulated in an electric pump when the e...  
WO/2018/185061A1
The invention relates to a permanent-magnet electric machine driven by an electronic circuit that controls an adjustment of the mean value of the voltage applied by an inverter to the electric machine, proportional to the duty cycle (D) ...  
WO/2018/176720A1
A method and system for correcting a zero point of a rotary transformer of a permanent magnet synchronous motor. The method comprises: S100. sampling a counter-electromotive force and a rotary transformer signal of a line voltage of a mo...  
WO/2018/180087A1
This method for correcting the detected rotation angle of a PM motor includes: a step (S3) of imparting, to a PM motor, a command value of a prescribed rotation speed and a prescribed torque command value; a step (S4) of driving the PM m...  
WO/2018/180083A1
Provided is a rotary tool in which, when a switch is turned off to stop a tip tool, a fixture that fixes the tip tool is prevented from being loosened. This rotary tool, in which a tip tool rotated by a fixture is mounted on a spindle, a...  
WO/2018/179620A1
A control device for a rotating electric machine (1) is characterized by being provided with: a current detector (2) for detecting rotating electric machine current flowing through the rotating electric machine (1); a position estimator ...  
WO/2018/179780A1
The present invention addresses the problem of reducing torque pulsation. The rotating electric machine control device according to the present invention is provided with: a sine-wave generation circuit for generating a sinusoidal signal...  
WO/2018/183783A1
A multispeed alternating current (AC) machine circuit is for an AC power source having a first side and a second side. The AC machine circuit includes two or more pairs of power switches, one or more windings, and a control circuit to cl...  
WO/2018/179410A1
An electric motor control device (1) has: a speed ripple component extraction unit for extracting a speed ripple component from the difference between a command angular frequency and a speed feedback angular frequency; a phase synchroniz...  
WO/2018/180203A1
According to the present invention, in position sensorless control for switching between a 120-degree energization scheme for a low-speed region and a 180-degree energization scheme for a mid-to-high-speed region, stable and highly accur...  
WO/2018/179418A1
The motor control device 2 according to the present disclosure is configured so as to control motors #1 to #3. The motor control device 2 is configured so as to automatically obtain identification information of a plurality of encoders #...  
WO/2018/173587A1
The motor control method includes a step for obtaining a component BEMFα on the α axis and a component BEMFβ on the β axis of the counter electromotive force of the motor, a step for differentiating the BEMFα component and the compo...  
WO/2018/172489A1
A method for starting an energy generation network, in particular a farm network of a wind farm, wherein the energy generation network is connected at least at one network connection point to an electrical supply network, and wherein the...  
WO/2018/173102A1
A magnetic pole position detection device of a motor control device comprising a computation unit for estimating the position of a magnetic pole. The computation unit: generates a three-phase connection voltage pulse command for operatin...  
WO/2018/173503A1
Provided are a drive device and drive method of a brushless motor in which it is possible to suppress a decrease in rotational accuracy and controllability by pulse shift control. The drive device detects an open phase voltage during an ...  
WO/2018/175057A1
Method and apparatus for providing error compensation for a magnetic field sensing element in a three-phase motor. In embodiments, a driving angle is determined from zero-crossings of the magnet pole-pairs and error compensation levels f...  
WO/2018/162195A1
The invention relates to the regulation of an electric machine, wherein an interference variable is compensated for and simultaneously a target value is set. In the process, two mutually independent control loops are provided. A first co...  
WO/2018/162191A1
The invention relates to a system, and to a corresponding method for regulating a drive by specifying a drive torque value. Based on a rotational speed difference between an actual and a target rotational speed of the drive, a torque cor...  
WO/2018/163789A1
This shift range control device (40) switches a shift range by controlling an on/off operation of a plurality of switching elements (411-416, 421-426) of driver circuits (41, 42) and driving a motor (1). An abnormality determination unit...  
WO/2018/159100A1
This motor control method includes: a step in which the combined magnetic flux, the stator current, and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate system a...  
WO/2018/159102A1
This motor control method includes: a step in which the combined magnetic flux and the stator current are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate system as a reference; a step...  
WO/2018/159099A1
This motor control method includes: a step in which the armature magnetic flux, the combined magnetic flux, the stator current, and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a d...  
WO/2018/159101A1
This motor control method includes: a step in which the stator current and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate system as a reference; a step in whic...  
WO/2018/159104A1
This motor control method includes: a step in which the combined magnetic flux, the stator current, and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate system a...  
WO/2018/158222A1
The invention relates to a drive system for a work machine comprising an electrical main drive (104); a switchgear for connecting the main drive to an electrical mains; an electrical auxiliary drive (106); a frequency converter for contr...  
WO/2018/159103A1
This motor control method includes: a step in which a combined magnetic flux vector, the stator current, and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate sys...  
WO/2018/155073A1
In order to provide an electric tool capable of suppressing harmonics, a portable cutting machine (1) as an electric tool is provided with: a motor (6); a diode bridge (42) that converts AC to DC; an inverter circuit (43) that supplies a...  
WO/2018/155332A1
A shift range control device (40) that switches shift ranges by controlling the drive of a motor (10) and comprises a first switching control unit (71), an inversion control unit (76), and a second switching control unit (77). The first ...  
WO/2018/149041A1
A permanent magnet synchronous motor drive system power converter that does not employ an electrolytic capacitor, and a control method thereof. The power converter comprises a single-phase rectifier circuit unit (A) connected to a power ...  
WO/2018/150908A1
A motor control device for performing energization control on three-phase coils of a brushless motor and performing rotation control of a rotor, the motor control device being provided with: a plurality of switching elements disposed so ...  
WO/2018/152394A1
A method of controlling operation of a furnace having a pre-mixed burner, a heat exchanger, and an inducer blower downstream of the heat exchanger includes monitoring a pressure drop across the heat exchanger. The speed of the inducer bl...  
WO/2018/147256A1
Provided is a brushless DC motor comprising: a stator; a magnet rotor; a position detection unit for detecting the positional relationship between the magnet rotor and windings; a speed instruction unit for outputting a voltage in accord...  
WO/2018/148272A1
A BLDC motor drive system may be configured to provide a programmable PWM current waveform, e.g., a sinusoidal PWM current, to the motor. The drive system may include control electronics configured to generate a series of PWM control sig...  
WO/2018/146957A1
The present invention addresses the problem of proposing a method for driving a sensorless motor, wherein the method is different from a conventional rotor position estimation method according to a time axis and performs rotor position e...  
WO/2018/146604A1
The present subject matter provides electric machine (16) with an auxiliary coil (20) wound around a stator tooth and voltage induced in the auxiliary coil 5 (20) is used to control one or more switches (s101, s102) used for winding reco...  
WO/2018/142835A1
A motor control device, comprising: an energization-pattern-determining unit that determines an energization pattern that specifies a coil to be energized from a multiphase coil; and a current supply unit that supplies current to the coi...  
WO/2018/141784A1
The invention relates to a method for operating an electric machine (100) with a permanently and/or separately excited rotor (120) and a plurality of phase windings (111, 112, 113) for a stator (110), the electric machine (100) being ope...  
WO/2018/141394A1
The present invention relates to an electrical household appliance with a brushless DC motor sensorless control scheme. The present invention more particularly relates to an electrical household appliance comprising at least one electric...  
WO/2018/142836A1
A motor control device, provided with: an energization-pattern-deciding unit for deciding an energization pattern designating a coil to energize; and a current supply unit for supplying, during an energization period, a current to the co...  
WO/2018/142157A1
Apparatus is provided comprising an electrical motor comprising a rotor and a stator, the rotor comprising a plurality of rotor teeth and the stator comprising a plurality of stator teeth. The apparatus has a driver circuit to drive the ...  
WO/2018/142828A1
[Problem] Provided is a motor drive device that is advantageous in terms of reliability of control that delays the timing for interrupting the connection of a motor and an inverter circuit compared to the timing for interrupting the conn...  
WO/2018/137858A1
The invention relates to a refrigerator fan device, in particular for ultra-low temperature freezers, having a fan motor (10) which comprises a fan rotor (12) and can be provided in an air duct between an air inlet (16), a refrigerator h...  
WO/2018/138807A1
A motor drive device (2) is provided with: a single phase inverter 11 for applying an AC voltage to a single phase motor (12); a position sensor 21 attached to the single phase motor (12) and detecting the rotor rotational position of th...  
WO/2018/135218A1
A wiper device includes: a wiper motor that is equipped with a rotor and a coil generating a rotating magnetic field, and causes a wiper blade to perform a wiping operation by means of a rotation of the rotor in accordance with the rotat...  
WO/2018/135620A1
According to an embodiment of the present invention, a control circuit of this motor driving circuit activates a first timer according to the rotational position of a motor, controls, on the basis of the measurement time of the timer, th...  
WO/2018/134266A1
A method for operating a sensorless-commutation DC machine, in particular a bipolar stepper motor or a brushless DC motor, wherein the DC machine comprises a rotor and a stator having a stator winding, wherein the stator winding comprise...  
WO/2018/135007A1
When driving a synchronous electric motor by a load commutated inverter, it has been often difficult for a conventional control device to restart the synchronous electric motor when the synchronous electric motor is idling at high speed....  
WO/2018/133581A1
Disclosed is a method for testing the initial position angle of an electric motor rotor, solving the technical problems of the high demand on conditions for testing the initial position angle of the electric motor rotor and the difficult...  
WO/2018/130244A1
The invention relates to a method for determining the position of the rotor of a multiphase electric machine with pole windings (4), the inductances of which are uniquely connected to the rotational angular position of the rotor (2) in t...  

Matches 1 - 50 out of 24,931