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WO/2022/036769A1 |
Provided are an alternating-current chopper circuit and a single-phase alternating-current electric motor drive system. The alternating-current chopper circuit comprises a switch circuit, a synchronization signal generation circuit, a sw...
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WO/2022/034665A1 |
An electric motor (1) comprises a rotor (2), a stator (3), and a connection switching unit (60). The stator (3) has a stator core (31) which has 6×n (n is an integer of 1 or more) slots (311) and a three-phase coil (32) which forms 2×n...
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WO/2022/032098A1 |
A system for controlling a capacity of a compressor includes a motor of the compressor including a main winding connected at a connection point to an auxiliary winding and a drive configured to control a speed of the motor. The system in...
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WO/2022/028238A1 |
Provided is a power conversion system. The system comprises: a rectifier module, which converts an alternating-current input voltage into a direct-current bus voltage; an inverter module, which converts the direct-current bus voltage int...
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WO/2022/030419A1 |
A first circuit (68) energizes a steering assist actuator (800). A second circuit (67) energizes a lock actuator (710) that drives a lock device (20) to perform a locking operation or an unlocking operation. The first circuit (68) and th...
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WO/2022/022733A1 |
Disclosed are a radio excitation system, a detection method and an electric vehicle, which relate to the field of electronic power technology. The input end of a first power conversion circuit of the system is connected to a power source...
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WO/2022/026957A1 |
An electric machine includes a stator defining multiple stator poles with associated stator windings configured to receive a stator current. The electric machine also includes a rotor defining multiple fixed rotor poles with associated r...
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WO/2022/020226A1 |
A variable reluctance stepper motor comprises a stator (11) and a rotor (41) that is rotatable relative to the stator. The stator comprises an annular outer yoke (20) with a set of circumferentially spaced stator poles (13) at equal angu...
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WO/2022/018174A1 |
The invention relates to a method for operating a drive device (10) having a rotating electric machine (20) which has a stator (22) having a magnetic unit (24) and a rotor (28), wherein the magnetic unit (24) has grooves (30), a first wi...
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WO/2022/019083A1 |
A rotating electric machine drive device (10) is applied to a rotating electric machine having a plurality of windings corresponding to a plurality of phases and comprises: a first inverter (INV1) connected to a DC power supply and provi...
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WO/2022/019043A1 |
An electronic control device (33, 33A, 33B) equipped with a plurality of computation blocks (41-44, 51-54, 61-63) for computing floating-point data, said device being equipped with: a storage unit (36, 36A, 36B) for storing the computed ...
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WO/2022/018675A1 |
An electric motor comprises a plurality of phases and a switching device (106). The phases extend between respective terminals and are divided into a plurality of distinct groups, in particular at least a first group and a second group (...
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WO/2022/013367A1 |
In order to provide improved overvoltage protection for a voltage converter (2) for converting an input voltage (ue, Ue) into an output DC voltage (Ua), a first shut-off unit (11) is provided which is designed such that, when a first vol...
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WO/2022/012130A1 |
Disclosed is an active heave compensation control method for a marine winch driven by a switched reluctance electric motor. The method comprises: calculating a rotation speed deviation of a switched reluctance electric motor according to...
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WO/2022/007583A1 |
An electric motor parameter determination method and apparatus, an electrical appliance system, a storage medium and a processor. The method comprises: insofar as an electric motor is stationary, applying a set pulse voltage to the elect...
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WO/2022/000649A1 |
The present application provides a method and an apparatus for correcting an equalizing electrical signal of a motor, and a computer-readable storage medium. The correction method comprises: acquiring a theoretical equalizing electrical ...
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WO/2022/002491A1 |
The invention relates to a drive system. The drive system comprises an electric machine, which is set up in the manner of a synchronous machine. The machine comprises a rotor, which is designed so as to be rotatable about an axis of rota...
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WO/2021/258484A1 |
The present invention provides a motor protection method and device in a vibration system, and a computer-readable storage medium. The motor protection method comprises: acquiring a time-frequency curve of an original excitation voltage ...
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WO/2021/258528A1 |
The present invention relates to the technical field of linear motors, and discloses a short primary linear motor winding magnetomotive force analysis method. Compared with a traditional analysis method, the effect of an end part of a pr...
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WO/2021/256312A1 |
A motor control device (80) comprises: a first inverter (120) connected to a first winding set (180) and a first power supply unit (191); a second inverter (220) connected to a second winding set (280) and a second power supply unit (291...
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WO/2021/257835A1 |
A power tool including a housing, a brushless direct current (DC) motor, an impact mechanism including a hammer and an anvil, an output drive device, a position sensor, and a controller. The position sensor is adjacent to a relief featur...
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WO/2021/257433A1 |
Gas-engine replacement devices described herein include a housing that includes battery receptacle configured to removably receive a battery pack, a motor located within the housing, a power take-off shaft receiving torque from the motor...
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WO/2021/254530A1 |
Provided are a compressor variable-frequency speed regulation system and a direct-current bus voltage overvoltage protection method, comprising: during the process of motor speed regulation, setting a direct-current bus voltage given val...
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WO/2021/255956A1 |
Provided is a motor control device capable of realizing highly accurate abnormality diagnosis. A PWM controller 15 controls a plurality of switching elements in a power converter 2 on the basis of a PWM signal. A current controller 11 ac...
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WO/2021/256045A1 |
In the present invention, in a first control state, it is determined whether there is a malfunction pattern (FT), which is either a first malfunction pattern (FP1) or a second malfunction pattern (FP2), in a second control state, it is d...
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WO/2021/255837A1 |
This motor drive device (50) that drives a motor (10) having three-phase windings comprises an inverter (13) that applies a desired voltage to the motor (10), and an inverter control unit (14) that controls the operation of the inverter ...
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WO/2021/250376A1 |
A method of actuating an article using a servo actuation system is disclosed. The system comprises a motor, a controller and an inverter. The controller comprises a position controller, a velocity controller and a current controller; the...
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WO/2021/250077A1 |
The invention relates to a method (100) for controlling a planar drive system (200), comprising: controlling the rotor along a control path starting from a first position (P1) on the stator module (300), in a control step (101); determin...
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WO/2021/246229A1 |
Provided are: a motor capable of more stably rotating a needle in non-contact by a simpler structure; and a device using the motor. This motor has: a first portion that includes a plurality of permanent magnets; and a second portion that...
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WO/2021/244669A1 |
A compressor variable-frequency speed adjusting system and a control method for a direct-current bus voltage, comprising: a rectifier module, for converting an alternating-current input voltage into a direct-current bus voltage; an inver...
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WO/2021/237964A1 |
A self-adaptive full-order displacement observer-based linear oscillating motor control method, relating to the field of linear oscillating motor frequency control and position sensor-less control. The method comprises: constructing a fu...
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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/2021/242117A1 |
The present invention discloses a counter-rotating (CR) aerial propulsion system that includes two oppositely rotating propellers,wherein the propellers are fixed to the respective rotational members.Each of the rotational members accomm...
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WO/2021/241520A1 |
An electric motor device equipped with an armature (110), a magnetic pole (120), a current control unit, and a voltage-boosting unit. The armature (110) has a plurality of armature coils (111) for receiving current and generating a magne...
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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/2021/232472A1 |
An excitation signal generation method, comprising: acquiring an expected vibration waveform, and according to the expected vibration waveform, acquiring a vibration parameter thereof at each moment (S11); testing a motor, and acquiring ...
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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/2021/234802A1 |
This electric motor control device obtains voltage command values on the dq axis to control the rotation of an AC electric motor having two three-phase windings and equipped with a resolver (2) having two systems, wherein: dq conversion ...
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WO/2021/230165A1 |
Provided is a control device for a multiphase rotary machine in which a multiphase rotary machine (80) has two systems of multiphase winding sets (801, 802) magnetically coupled to each other, the torques generated by energizing the mult...
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WO/2021/228064A1 |
A control method based on the vibration intensity of a toothbrush electric motor. The method comprises: obtaining a first length of time, wherein the first length of time is the length of time a key is pressed (S110); obtaining a first p...
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WO/2021/229723A1 |
This linear motor system is provided with stators (11, 12), a mover (3), and control devices (21, 22) for performing energization to the stators (11, 12). The control device (21) calculates a current command value to the stator (11) on t...
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WO/2021/224958A1 |
Provided is a motor control device with which it is possible to reduce unpleasant sensation caused by vibration or noise generated in a motor. This motor control device (100) is provided with a first control unit (1a) for driving a first...
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WO/2021/225434A1 |
An autonomous vehicle (1) comprises a frame (2), displacement means for moving the frame, and a container (3) for animal feed provided on the frame, in which container is an auger (5) for chopping and/or mixing animal feed in the contain...
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WO/2021/224322A1 |
There is provided an induction machine (100) comprising a rotor (120); a stator (140); and a phase-shift oscillator (160). The stator comprises: a first winding (141); and a second winding (142), arranged at a first angle (101) relative ...
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WO/2021/212838A1 |
A vibrating drive signal generation method and apparatus, and an electronic device. The method comprises: obtaining a user vibration touch parameter matching the haptic experience application scenario requirement and/or the user haptic e...
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WO/2021/214925A1 |
This electric motor drive device (1) includes a connection switching unit (60) having a mechanical relay, an inverter (30), and a current detection unit (70), wherein a control device (50): outputs, to the connection switching unit (60),...
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WO/2021/214980A1 |
This electric motor drive device comprises: a connection switching device (60) that includes a plurality of switches (61, 62, 63), and switches the connection state of windings (71, 72, 73) of an electric motor (7) by performing switchin...
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WO/2021/213499A1 |
Disclosed in the present invention are a quasi-differential lock control system, a differential rate control system and method, and an automobile. The system comprises n three-phase motor windings connected in series by means of three-ph...
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WO/2021/215158A1 |
This electric brake device includes: an electric motor having a plurality of drive circuits; an electric mechanism for pressing a braking member against a braked member as a result of driving of the electric motor; and a control device f...
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WO/2021/208121A1 |
Disclosed in embodiments of the present application is a method for quickly stopping a vibration system, comprising: obtaining an initial vibration waveform to be processed; determining a balancing voltage signal of the initial vibration...
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