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Matches 1 - 50 out of 24,593

Document Document Title
WO/2018/068369A1
A permanent magnet brushless motor having a high winding factor, and design and fault-tolerant control methods thereof. The motor comprises a stator, an armature winding (1), a rotor, and a permanent magnet (5). The stator is provided wi...  
WO/2018/069637A1
The invention concerns the field of powering and controlling electrical actuators (32A, 32B, 32C) installed in an aircraft. In particular, it concerns a system (31) for powering and controlling a plurality of electrically controlled actu...  
WO/2018/068988A1
The invention relates to a method for operating an inverter (10, 48, 50) for coupling an electric machine (12, 46) which is designed for operation on AC voltage, with an AC voltage network (16), comprising the steps: - determining a torq...  
WO/2018/066423A1
A motor drive device (12) equipped with a waveform generation unit (10) that generates a rectangular wave having a conduction angle of 120 degrees or less, or a waveform equivalent thereto, by means of PWM, and a drive unit (11) that out...  
WO/2018/066566A1
This control device and control method of a brushless motor has multiple conduction modes for selection, by a pulse modulation operation, of a phase of conduction from among multiple phases of the brushless motor, and controls the rotati...  
WO/2018/066065A1
A starter generator device according to an embodiment of the present invention is provided with: a starter generator having a field portion and an armature portion, said field portion comprising a permanent magnet, said armature portion ...  
WO/2018/062096A1
When an estimated rotational speed becomes lower than or equal to a predetermined rotational speed, a control unit 76 of a motor control device 70 increases the voltage to be applied to a coil 53 on the basis of a control signal for incr...  
WO/2018/059326A1
An aircraft motor control method, apparatus and system, the method comprises: acquiring current posture information of an aircraft; determining a motor to be adjusted according to the current posture information, and generating an adjust...  
WO/2018/062083A1
Disclosed is a control device 70 that controls a motor unit 20 including a stator 50 that includes a coil 53, and a rotor 40 that includes a permanent magnet 44. The control device comprises: a detection unit 71 that detects the rotation...  
WO/2018/054581A1
The present invention relates to a gear motor (101), in particular for a wiper system, comprising: - a brushless DC electric motor (103) including: - a rotor; - a stator having coils for electromagnetically exciting the rotor; - a device...  
WO/2018/054423A1
The invention relates to an adjusting unit (1) of an internal combustion engine, comprising an electric motor (2) and a transmission (11) interacting therewith, an adjusting shaft (6) of the transmission (11) being coupled to the rotor (...  
WO/2018/056394A1
Provided is a motor driving device capable of suppressing load vibration as well as reducing motor loss. This motor driving device (50) is provided with a control unit (51) which adjusts the range of the allowed variation in the rotating...  
WO/2018/056397A1
Provided is a motor control device comprising a control unit. The control unit comprises: a gate control voltage output unit that outputs a drive signal on the basis of corrected Hall edges that constitute each of six Hall stages; a coun...  
WO/2018/056435A1
Provided are an electric motor device and an electric brake device that realize a reduction in cost and that enable a motor angle to be stably and accurately estimated. A stator (4a) of an electric motor (4) has first and second excitati...  
WO/2018/054942A1
A converter (1) comprises a negative DC terminal (7) and a positive DC terminal (8); at least three AC terminals (11, 12, 13), each AC terminal being arranged for an associated AC current (iv, iu, iw) to flow through the terminal; a conv...  
WO/2018/047664A1
A rotational angle estimation device applied to a system equipped with a rotary electric machine (40) having one or more sets of star-connected armature windings (43U - 43W) of multiple phases. This rotational angle estimation device is ...  
WO/2018/047746A1
If B, L, M, N, and X denote natural numbers, S denotes the number of slots (15), P denotes the number of magnetic poles of a magnet (9), and A denotes the smallest value among values of L that satisfy X = 90(2L-1)/{(360/S)×(P/2)}, the n...  
WO/2018/045806A1
The present invention relates to a motor speed adjustment system for a multi-rotor aerial vehicle, and a multi-rotor aerial vehicle. The motor speed adjustment system comprises a flight control unit, and further comprises a motor speed a...  
WO/2018/047524A1
This motor control method comprises: a step in which an α-axis component BEMFα and a β-axis component BEMFβ of the back electromotive force of a motor in an αβ fixed coordinate system are acquired; a step in which the α-axis compo...  
WO/2018/048129A1
The present invention relates to a motor rotor controlling apparatus and method which can reduce noise due to the arrangement of a motor rotor and can ensure stability of motor starting. A motor rotor controlling apparatus according to a...  
WO/2018/047924A1
A shift range switching device (40) that: controls the driving of a motor (10) and thereby switches shift range; and comprises a feedback control unit (60), a fixed-phase electrification control unit (70), and a switching control unit (7...  
WO/2018/043501A1
This inverter control device according to one embodiment provides an electric motor driving system and an inverter control device that can achieve stable activation, the inverter control device comprising: a current detector 3 that detec...  
WO/2018/042920A1
In order to stably operate a car in the absence of magnetic pole position signals from a magnetic pole position sensor, this elevator system comprises: a synchronous motor which drives the car; a brake; and a drive control device for the...  
WO/2018/042389A1
Techniques for limiting electrical current provided to a motor for an electric power steering system are provided. A first estimated temperature of the motor is determined for a first time step. The first estimated temperature of the mot...  
WO/2018/039988A1
A method of controlling a motor is disclosed. The method may include determining a first motor controlling parameter measurement based on a signal received from a position sensor (28), determining a second motor controlling parameter mea...  
WO/2018/040700A1
An intelligent integrated high-speed brushless motor controller, comprising a central processing module, a brushless motor control circuit, a temperature measurement and control circuit, a liquid level measurement circuit, a key circuit,...  
WO/2018/043405A1
A brushless motor equipped with: a stator having three-phase windings; a rotor having permanent magnets; an inverter that supplies AC current to the three-phase windings by turning on or off multiple switching elements; and a control uni...  
WO/2018/037500A1
A motor control device (10a) of the present invention provided with a master shaft drive device (1a) that drives a master shaft motor (2), and a slave shaft drive device (3) that drives a slave shaft motor (4), wherein the motor control ...  
WO/2018/036687A1
The invention relates to a method for heating a device driven with a brushless direct current motor, in which method a voltage is applied to stator coils of the brushless direct current motor during a heating phase. The invention further...  
WO/2018/037830A1
To constitute a motor control device with which it is possible to perform proper starting in a short time irrespective of rotor attitude. A rotation control unit for controlling the rotor R of a brushless motor M energizes, for a set tim...  
WO/2018/038111A1
Provided are an inverter control device and a drive system for enhancing the accuracy of rotation sensorless control of an electrical motor. An inverter control device 1 according to an embodiment is provided with: a current command gene...  
WO/2018/032386A1
A single closed-loop control device for controlling a brushless direct current electric motor comprises: a controller (1); a tachometer (2); a commutation device (3); a first position sensor (4); a second position sensor (5); a speed con...  
WO/2018/032432A1
Provided is a brushless DC motor control system capable of implementing speed and current double closed-loop control, comprising a controller (1), a tachometer (2), a commutation device (3), a first position sensor (4), a second position...  
WO/2018/032352A1
An optical sensor for estimating positions of rotors in a motor comprises an optical source (21) and a plurality of photo detectors (22), the motor further has stators and is used for e-machines, the optical source (21) is mounted on the...  
WO/2018/030209A1
Provided is a motor control method that comprises: a step for acquiring at least one measurement torque angle and two estimation torque angles; a step for finding all combinations of two torque angles that can be combined with respect to...  
WO/2018/030362A1
Provided is a motor driving circuit which is provided with an upper switching element and a lower switching element serially connected to the upper switching element, and which drives a brushless DC motor. This motor driving circuit is p...  
WO/2018/029888A1
Obtained is a motor control device that makes it possible to perform abnormality determination of a switching element, etc., without losing the effectiveness of using a shunt resistor. The motor control device is provided with: a high-si...  
WO/2018/024989A1
Actuator (2) for vehicle transmission system (3), comprising: - an electric machine (6) comprising a rotor and a stator, the machine (6) being such that the relationship between a quantity that is representative of the electromagnetic to...  
WO/2018/027170A1
Systems and methods for determining dynamic viscosity and density in fluids are provided. The system can include a motor assembly configured to support or pulls a wire having a sphere of a desired weight attached to one end up through a ...  
WO/2018/025319A1
The present invention obtains an error correction quantity reference value for correcting an error of an estimation position of a rotor of a rotating electric machine, said error correction quantity reference value being obtained on the ...  
WO/2018/024569A1
The present invention relates to an electrical household appliance with a power module with dynamically controlled switching frequency. The present invention more particularly relates to an electrical household appliance comprising an el...  
WO/2018/024280A1
The present invention relates firstly to a method for controlling an electric machine. The electric machine is in particular an electric motor or a generator. The electric machine comprises a rotor with at least one permanent magnet. The...  
WO/2018/024963A1
The invention relates to a means for detecting the blocking of a brushless synchronous motor for a motor vehicle, comprising a stator fitted with a plurality of coils and a rotor, said motor being devoid of any position sensor of the rot...  
WO/2018/025331A1
This motor driving apparatus is used for driving a motor 5 that has a first winding group 6 and a second winding group 7 to which a three-phase AC voltage is applied, and is provided with a first inverter 3 and a second inverter 4, where...  
WO/2018/020731A1
In this vacuum pump (motor with crank mechanism), a rotor and a crank part are assembled so that the rotor is set in an initial position when a moving member has moved to a prescribed position in the crankcase due to stoppage of rotation...  
WO/2018/021043A1
A brushless DC motor (2) equipped with: a stator (5) on which three-phase windings are arranged; a magnetic rotor (6) that is rotated when power is supplied to the stator; an inverter circuit (11) having multiple switching elements and c...  
WO/2018/020245A1
A brushless bi-directional electric machine comprises a housing mounting exciting coils, a rotor and a stator, the exciting coils and the stator being stationary with respect to the housing and the rotor mounted for rotation with respect...  
WO/2018/019140A1
A motor starting state recognition method and device, and a motor. The method comprises the following steps: sampling the counter electromotive forces of any two phases of a motor, and calculating a linear counter electromotive force of ...  
WO/2018/021983A1
The present invention relates to a rotor (2) alignment method which enables the rotor (2) to be aligned with the A phase axis for Permanent Magnet Synchronous Motors (PMSM) (1) using incremental angle encoder, and which comprises the ste...  
WO/2018/016559A1
[Problem] To provide an electric power steering device of the vector control type which compensates for inverter dead time without requiring a tuning operation, improves current waveform distortion and improves current control responsive...  

Matches 1 - 50 out of 24,593