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Matches 1 - 50 out of 25,098

Document Document Title
WO/2019/013491A1
The present invention relates to a motor driving apparatus and, more specifically, to a motor driving apparatus which allows a maximum torque operation by correcting an angle error occurring during quick acceleration of a motor in a sens...  
WO/2019/013999A1
A system and method (800) for estimating a position and a speed of a rotor (120) of a Switched Reluctance (SR) machine (118) is provided. The SR machine (118) comprises the rotor (120), a stator (122) and at least one winding. The method...  
WO/2019/007694A1
The invention relates to a method and a device for operating an electric motor, wherein: a power output stage has half bridges (4) supplied with operating voltage which each consist of a series circuit of a first and a second semiconduct...  
WO/2019/009644A1
The present invention relates to a motor drive apparatus and, more particularly, to a motor drive apparatus capable of immediately restarting by maintaining sensorless control during a stop operation of a motor. The motor drive apparatus...  
WO/2019/008285A1
The invention relates to a method for estimating the current (Iest) flowing through a winding (1) of an electric motor (M) of the type comprising at least one winding (1) that can be driven by a switching device (2), comprising the follo...  
WO/2019/008846A1
The present invention addresses the problem of providing a magnetic field position detection method that can realize low cost by using simple hardware and software and can detect a rotor position in units of excitation sections in 120° ...  
WO/2019/005673A1
A method is disclosed for mitigating wheel hop of a motor vehicle. The method may involve detecting an oscillation of a wheel speed of a driven wheel of the motor vehicle of the motor vehicle. When oscillation of the wheel is detected, a...  
WO/2019/001915A1
A drive train for an electrically operated vehicle, having an electric motor (20), a first energy store (12) and a second energy store (14) which are each electrically connected to the electric motor (20), a first inverter (16) and a sec...  
WO/2018/233942A1
The invention relates to a method for moving an actuator (115) of an actuator device (100) into a target position (200). The actuator device (100) comprises at least one motor (105), a transmission (110), and the actuator (115). The meth...  
WO/2018/235187A1
A thyristor starting device (100) for accelerating a synchronous machine (20) from a stopped state to a prescribed rotation speed by sequentially executing a first mode for performing inverter (2) commutation by intermittently switching ...  
WO/2018/231331A1
A method and apparatus for quasi-sensorless adaptive control of a high rotor pole switched-reluctance motor (HRSRM). The method comprises the steps of: applying a voltage pulse to an inactive phase winding and measuring current response ...  
WO/2018/229842A1
Provided is a control device which is for a brushless DC servo motor, uses one MR sensor unit, and can control, on the basis of an output signal thereof, a motor in a completely closed loop with high precision. The motor is provided with...  
WO/2018/230142A1
Provided is a control device for an power tool that uses a battery and a DC brushless motor, the control device being provided with: a current detection unit that detects the instantaneous current flowing to the DC brushless motor; a cur...  
WO/2018/228741A1
The invention relates to a method for determining phase currents (ia, ib, ic) of a rotating multiphase electrical machine fed by means of a PWM-controlled inverter. In this case, injection voltages applied in at least one stipulated PWM ...  
WO/2018/226547A1
A control system (200) for a switched reluctance (SR) motor (206) includes a Direct Current (DC) power source (202), and an inverter (204). The control system (200) includes a user interface configured to enable an operator to specify a ...  
WO/2018/214167A1
A servo system, motor, absolute encoder, and signal processing circuit for the same. The servo system comprises a first interface (11), a main control element (12), and a second interface (14). The first interface (11) is used to connect...  
WO/2018/214979A1
The present invention relates to a control method for a brushless DC motor, a control device, and an electric tool, for controlling a brushless DC motor lacking a position sensor and having three phases (A, B, C). The method comprises: s...  
WO/2018/215468A1
The present invention relates to a method and a device for controlling the shutting down of a motor of an occulting device. The motor is a brushless direct current synchronous motor, controlled by a control device through a control circu...  
WO/2018/216149A1
The present invention is provided with: a rotation angle sensor; an input circuit which outputs a rotation angle signal and an abnormal signal; a calculation processing unit which, at a preset calculation timing and on the basis of a det...  
WO/2018/214801A1
A control system (2) and a control method, used for controlling a motor (31). The control system (2) comprises a central processing module (22) and a drive control module (23). In a period in which a voltage is not applied to any phase c...  
WO/2018/211666A1
Provided is an electric power steering apparatus which comprises a steering torque detection unit for detecting the steering torque of a driver, a motor for assisting the driver's steering power, an estimated speed calculation unit for c...  
WO/2018/209605A1
A brushless electric tool. The brushless electric tool comprises a main control circuit (30), a power drive circuit (20), and a brushless motor (10). The main control circuit and the power drive circuit are disposed on the same circuit b...  
WO/2018/210531A1
The invention relates to a permanent magnet synchronous machine (1) comprising a rotor (R) and a stator (S) designed with connection terminals (2) for applying a feed alternating voltage with a feed frequency (fo), wherein the permanent ...  
WO/2018/205489A1
A method for adjusting rotating speed of a motor, comprising: sampling the rotating speed of the motor (S1); performing butterfly calculation on the sampled rotating speed to obtain Fourier analysis data of the rotating speed (S2), the F...  
WO/2018/207943A1
Provided is an image forming device that comprises: a motor 15 that causes a rotary multi-plane mirror 15a, which is provided on a rotor 15b having a plurality of magnetic poles 15b, to rotate; a Hall element 16 that detects magnetic flu...  
WO/2018/207944A1
This image formation device is provided with: a rotary polygon mirror 15a that deflects a light beam emitted from a semiconductor laser 12 such that the light beam scans over the surface of a photoconductor drum 25; a motor 15 that rotat...  
WO/2018/205452A1
Disclosed is a control circuit for a high-speed fan. A first resistor (R11) is connected to a second resistor (R12) in series. A third resistor (R14) is connected to a fourth resistor (R15) in series. A fifth resistor (R17) is connected ...  
WO/2018/202508A1
The invention relates to a method and device for determining the position angle of a rotor (2) in an electric synchronous machine (1). The device is designed to comprise: a voltage generator (12) for generating electrical voltage pulses ...  
WO/2018/203393A1
A control device for a motor, comprising: a power converter 4 for performing ON/OFF control on an upper switching element and a lower switching element in accordance with a drive command from a current controller 3, and thereby supplying...  
WO/2018/196177A1
A limit sensing method. The method comprises the steps of: providing a first contact block and a second contact block on a mobile device and a zero point position of a fixed equipment respectively; running a motor driving the mobile devi...  
WO/2018/198673A1
Provided is an electric tool capable of continuing work by making the electrical advance angle of a brushless motor variable even when a load is heavy. The electric tool is provided with: a brushless motor 1; a controller 30 for controll...  
WO/2018/198405A1
A motor control device provided with a rotation position detector capable of detecting the rotation position of a motor every 180° by electric angle, wherein a configuration is obtained having high responsiveness at the start of rotatio...  
WO/2018/198725A1
In the present invention, at least one of the following is satisfied: the directions of vectors (VV1a, VV2a) of N sets of a first pulse voltage are different from each other; the directions of vectors (VV1c, VV2c) of N sets of a second p...  
WO/2018/198406A1
The purpose of the present invention is to provide a motor control apparatus provided with a rotation position detector capable of detecting the rotation position of the motor every 90° by electric angle, wherein the phase at the start ...  
WO/2018/198734A1
Provided is a motor drive device for driving a motor, wherein: the motor drive device includes a control unit for outputting a drive signal that causes the motor to be driven, a drive unit for supplying the motor with a current supplied ...  
WO/2018/190453A1
A method and a device for controlling a sensorless BLDC motor are disclosed. The device for controlling a sensorless BLDC motor comprises: a memory for storing a command; and a processor executing the command and having a counter loaded ...  
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...  

Matches 1 - 50 out of 25,098