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WO/2021/245985A1 |
This motor control device comprises: a storage unit which stores, in advance, an abnormal pattern indicating an abnormality of output values of Hall sensors expressed by a combination of output values of a plurality of Hall sensors, a pr...
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WO/2021/248155A1 |
Systems and methods for reducing current imbalance in a motor, where one embodiment comprises a system having an ESP installed in a well, an electric drive, and a power cable coupled between the drive and the ESP's motor. The electric dr...
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WO/2021/240893A1 |
This synchronous electric motor drive device is provided with: a power converter for driving a synchronous electric motor by sequentially applying positive and negative voltages to each phase of the synchronous electric motor; a current ...
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WO/2021/237603A1 |
A motor controller (120) applied on an electrical vehicle (1000), a microprocessor (10) in the motor controller (120), and a sampling triggering method applied to the microprocessor (10). The microprocessor (10) is connected to a drive m...
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WO/2021/239757A1 |
The invention relates to a planar drive system. The planar drive system comprises a stator and a rotor. The stator has a plurality of energizable stator conductors. The rotor comprises a magnet device having at least one rotor magnet. A ...
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WO/2021/237272A1 |
Energy saving and sustainability have become hot topics nowadays. Electric transportation applications, such as electric vehicles, always pursue higher energy efficiency other than applications with secured power sources. Therefore, lots...
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WO/2021/239406A1 |
The invention relates to a vehicle drive train and to a method for operating a drive train with electromotive drive (4), wherein a rotational speed and a drive torque of the drive (4), which are convertible via a toothed transmission sta...
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WO/2021/239717A1 |
The invention relates to a planar drive system. The planar drive system has a stator and a rotor. The stator has a plurality of stator conductors which can be energized. The rotor has a magnet device with at least one rotor magnet. A mag...
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WO/2021/235206A1 |
The present invention reduces unstable motion of a motor during deceleration of the motor revolution speed. The present invention has: a plurality of sensors that each detect the rotary position of a rotor and output a position detection...
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WO/2021/235548A1 |
This motor system comprises: a permanent magnet motor (18) including a stator having N-phase windings (N is a natural number greater than or equal to three) and a rotor having a permanent magnet; an inverter (16) that supplies N-phase dr...
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WO/2021/232615A1 |
The present application provides a motor rotor position detection method, a device, and a motor controller. The method comprises: after a first interference signal having a frequency f is injected into a motor drive loop, acquiring, from...
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WO/2021/229892A1 |
A fan control system according to the present disclosure is provided with a control unit for selecting a control mode from among a plurality of control modes including a first mode and a second mode. The first mode is a control mode for ...
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WO/2021/230472A1 |
The present invention relates to a haptic feedback system, and in particular to a device and method for rapidly removing residual vibration in a linear resonant actuator, the method being characterized by comprising the steps of: applyin...
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WO/2021/225660A1 |
A variety of methods, controllers and electric machine systems are described that facilitate pulsed control of electric machines to improve the energy efficiency of the electric machine when conditions warrant. Selected transitions betwe...
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WO/2021/219657A1 |
The invention relates to an electric circuit (1) for an electric motor (2), the electric motor (2) having at least one stator (3) with at least three coils (4, 5, 6) and a rotor (7) with at least two magnetic poles (8, 9); the motor (2) ...
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WO/2021/220025A1 |
An ECU (40) controls a motor (31) including a first coil group (52) and a second coil group (53). The ECU calculates a first torque command value and a second torque command value. The ECU uses a first differential torque, which is the d...
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WO/2021/212618A1 |
A control system for a flexible permanent magnet brushless direct current motor (4) comprises a direct current power supply, a filter capacitor (1), a voltage source inverter (3), a permanent magnet brushless direct current motor (4), an...
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WO/2021/216228A1 |
Modulated pulse control of electric machines to deliver a desired output in a more energy efficient manner by either (a) operating the electric machine in a continuous mode when a requested torque demand is greater than the peak efficien...
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WO/2021/212520A1 |
A control method and apparatus for a motor, a motor device, and a storage medium, wherein the motor does not have a position sensor. The method comprises: before a motor starts up, acquiring the current electric angular velocity of the m...
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WO/2021/204353A1 |
Method of regulating a speed of a first torque device (3, 31) coupled to a load system (4), comprising a feedforward step of compensating for a disturbance torque, transmissible at least in part to an output shaft of the first torque dev...
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WO/2021/205997A1 |
A control unit (50) has a rotation speed computation unit (52), a target current computation unit (53), an energization command unit (54), and a switch control unit (55). The rotation speed computation unit (52) computes a motor rotation...
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WO/2021/205804A1 |
A single phase brushless DC motor has: a rotor rotatable about the central axis; a stator provided with a stator core and windings and facing the rotor with an air gap interposed therebetween, said stator core having a plurality of salie...
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WO/2021/205690A1 |
This power conversion device comprises a power converter having a switching element, and a control unit that controls the power converter to drive a motor. The control unit calculates a phase error estimated value, which is the deviation...
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WO/2021/203589A1 |
Provided are a permanent magnet direct-current electric motor commutation control apparatus and method based on a sliding mode observer. The apparatus comprises a processor module, a voltage sampling module, a current sampling module, a ...
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WO/2021/200209A1 |
A motor control method carried out by a motor control device, in which a portion of all of the arms of an inverter, said portion differing for each energization pattern, is turned on, thereby energizing a motor having a rotor, wherein th...
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WO/2021/200236A1 |
This method causes a motor having a rotor to be conductive by turning ON a portion of arms which differ for each conductive pattern among all arms of an inverter, wherein: PWM signals of each phase are all generated with a duty cycle of ...
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WO/2021/200845A1 |
The present invention is provided with: an inverter which energizes a motor having a rotor by turning on some arms among all arms in accordance with PWM signals in respective phases; a current detector which is connected to the direct cu...
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WO/2021/200123A1 |
This motor control device is provided with: an inverter that energizes, in accordance with an energization pattern, a motor in which a rotor is in a stopped or extremely low-speed state by turning on some of arms; a current detector that...
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WO/2021/201856A1 |
A method for operating a motor control system to dynamically compensate for low-frequency and/or high-frequency torque ripple. Embodiments include receiving an input command, receiving drive feedback signals representative of drive curre...
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WO/2021/196466A1 |
A method for controlling a full-field DC motor system: when rotor magnetic poles are in the process of being close to overlapping with stator magnetic poles, the polarities of a magnetic field generated by a stator winding current and a ...
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WO/2021/198264A1 |
In order to capture a rotor position of a rotor (2) of a permanently excited synchronous machine (1), voltages (27) are applied to stator windings of the synchronous machine (1), wherein higher-frequency additional signals (16) are super...
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WO/2021/195436A1 |
An inverter assembly for an electric vehicle. The inverter assembly includes three inverters driving at least one wheel of the vehicle. Each inverter has a different phases angle relative to the other inverters in order to minimize curre...
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WO/2021/193243A1 |
This motor driving device (10), comprising a power supply device (30) that supplies a driving current to a motor (20) and a control unit (110) that controls the power supply device (30), further comprises a measuring unit (100) which mea...
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WO/2021/186086A1 |
The present invention relates to an electric synchronous motor and to a system comprising the same. The invention further relates to a method of manufacturing an electric synchronous motor. According to the present invention, a sensor un...
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WO/2021/186818A1 |
There have been cases in which a conventional position estimation method cannot estimate the rotational position of a rotor in the range in which a rotor angle is less than one turn. Therefore, it has been difficult for the method to be ...
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WO/2021/186820A1 |
A state detection device according to one aspect of the present invention comprises: at least three detection units that have a first magnetic sensor facing a permanent magnet in an axial direction of a rotor of a motor and a second magn...
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WO/2021/184581A1 |
A fuzzy/master-slave/feedback cooperation-based multi-motor closed-loop coupling cooperative control system and method, relating to the technical field of motor control. According to the system, a plurality of motors form an end-to-end c...
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WO/2021/181435A1 |
Control apparatus (10) and corresponding method for controlling a high power (P) electric motor (12), preferably of the order of megawatts (MW), preferably of or associated with a shredding plant (11) which is preferably usable for shred...
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WO/2021/176981A1 |
This control device comprises: a first input terminal and a second input terminal to which a direct-current voltage for driving a motor is input; and a control unit. The control unit sets the rotation direction of the motor by using the ...
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WO/2021/175508A1 |
The invention relates to an levator system (1) comprising: a car (5) which is movably received inside an elevator shaft (52); a linear drive (3) for driving the car (5); the linear drive (3) comprises rotors (35), each of which is attach...
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WO/2021/175668A1 |
A drug delivery device comprising a reservoir containing a fluid to be delivered from the device by advancing a piston in the reservoir at an advancement speed defining a delivery rate for the medicament. An electric motor drives the del...
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WO/2021/171323A1 |
A measuring circuit (100) is described, for the voltage of an electric machine comprising a first operational amplifier (20) having its non-inverting input (5) connected to a non-inverting input (10) of at least one second operational am...
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WO/2021/171324A1 |
A measuring circuit (100) is described, for the voltage of an electric machine comprising a first operational amplifier (20) having its non-inverting input (5) connected to a non-inverting input (10) of at least one second operational am...
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WO/2021/171679A1 |
Provided are a motor drive device capable of effectively suppressing an induced voltage distortion caused by a motor and torque ripples due to an output voltage distortion caused by an inverter, an outdoor unit of an air conditioner usin...
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WO/2021/172275A1 |
Provided is a magnetic pole position detection device with which it is possible to shorten the detection time of the initial magnetic pole position of the rotor of a synchronous motor. A magnetic pole position detection device 1 that d...
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WO/2021/165439A1 |
In order to reduce the cabling complexity of an electric motor having an encoder, an electric motor (10) which can be connected to a regulating unit (3) in order to receive an actuating signal (u) from the regulating unit (3) has an enco...
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WO/2021/166682A1 |
The present invention includes: rotating a motor shaft to a predetermined rotation stop position by exciting coils of two phases from among coils of three phases of a stator coil; acquiring a detection value of a rotation angle sensor at...
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WO/2021/165742A1 |
A synchronous electric generator (1) comprising: a stator (2) provided with a stator winding (7); a rotor (3) provided with a rotor winding (15) which is configured to be crossed by a rotor electric current (iex,ind) adapted to generate ...
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WO/2021/161762A1 |
The present invention provides a motor driving control device capable of determining the driving status of a motor. A motor driving control device (1) is characterized by comprising: a plurality of motor driving circuits (10_1, 10_2) w...
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WO/2021/161650A1 |
This phase adjustment method of a rotation angle sensor (10) for detecting the rotation angle of a rotor of a brushless motor (2) involves: measuring a first rotation speed and a second rotation speed when the brushless motor (2) is driv...
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