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WO/2023/022116A1 |
A current detection device (150, 250, 350, 450, 550) is applied to a control device for a polyphase AC rotary electric machine and detects a phase current flowing in a power line for supplying power to the rotary electric machine. The cu...
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WO/2023/010881A1 |
Provided are a direct current estimation method and system based on a direct-current bus voltage. The direct current estimation method comprises the following steps: under an experimental environment, outputting a direct-current bus volt...
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WO/2023/000863A1 |
Disclosed in the present invention is a current control method, comprising: a power supply, a first rectifying circuit and a second rectifying circuit connected in parallel between positive and negative electrodes of the power supply, an...
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WO/2023/001417A1 |
The invention relates to a method for optimizing an operation of a dynamoelectric machine (1), comprising the following steps: requesting correction data for the dynamoelectric machine (1) by a client (41) from a server (6); transmitting...
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WO/2023/286592A1 |
This motor control device comprises: an assist torque command value generation unit which uses a steering torque to generate an assist torque command value; a manual steering command value generation unit which uses the steering torque a...
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WO/2023/285095A1 |
In order to monitor the condition of a machine (M), current operating data (BD) relating to the machine (M) are continuously captured and are taken as a basis for continuously simulating a current operating behaviour of a machine compone...
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WO/2023/282133A1 |
A motor drive control device (10) comprises a first current sense unit (105) provided between an intermediate-potential end and a semiconductor switch group. A control circuit (104) recovers phase current information of a three-phase mot...
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WO/2023/274443A1 |
The present invention relates to a method for estimating a torque of an electric machine (1), comprising the following steps: estimating a first torque (M1) using a first method by forming a cross product from an estimated magnetic flux ...
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WO/2023/274664A1 |
The invention relates to a temperature determination method (1) for magnet temperatures on magnets (2) of electric motors (3), having steps in a test mode (4): applying (5) a first voltage (U1) to at least one test winding (6) of a test ...
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WO/2023/276198A1 |
The present invention is a motor control device included in a position control system for performing position control of a machine end connected to a motor. The motor control device is built into the position control system so as to rece...
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WO/2023/273550A1 |
Provided are a busbar (202) current control method, apparatus and system, and a storage medium. The control method comprises the following steps: acquiring a data set, the data set comprising the rotational speed, actual current, and act...
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WO/2023/273130A1 |
An electric motor control circuit and an electric steering engine system, the circuit comprising a driving circuit, a measurement circuit and a control circuit, wherein the driving circuit is used for driving an electric motor; the measu...
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WO/2022/271854A1 |
A variable frequency drive motor system and method with a single variable frequency drive controller controlling multiple synchronous reluctance motors in an open-loop mode using volts-per-Hertz control. Each motor includes a rotor inclu...
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WO/2022/267378A1 |
The present invention relates to a low-speed operation control method for a switched reluctance motor, and a switched reluctance motor. The method comprises: acquiring a real-time rotational speed of a switched reluctance motor; determin...
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WO/2022/267278A1 |
A linear drive and a method for correcting a systematic error of the linear drive. The linear drive comprises a fixed assembly (1), a movable assembly (2), a first force sensor (3) and a second force sensor (4). The movable assembly (2) ...
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WO/2022/272158A1 |
A motor controller integrated circuit (IC) includes a storage device (120) containing software (125). The IC also includes a processor core (110) coupled to the storage device (120). The processor core (110) has an output adapted to be c...
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WO/2022/264315A1 |
This motor drive device comprises an insulation resistance value detection unit for calculating an insulation resistance value of a motor on the basis of: a measurement value of voltage of a smoothing capacitor provided between a rectifi...
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WO/2022/265986A1 |
An electric machine is provided. A polyphase machine is provided. A power inverter is electrically connected to the polyphase machine. A controller is electrically connected to the power inverter, wherein the controller provides switchin...
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WO/2022/264314A1 |
This motor drive device comprises: an insulation resistance value detection unit for detecting the insulation resistance value of a motor on the basis of the measured value of the inter-terminal voltage of a measurement resistor and the ...
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WO/2022/263105A1 |
In order to monitor the temperature of an electromechanical machine (M) using electrical operating data (U, I RPM) of the machine (M), structural data (SD) concerning a geometry, a thermal conductivity and an electrical conductivity of e...
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WO/2022/247127A1 |
A direct torque field weakening control method and apparatus, a storage medium and an electronic device, the method comprising: determining the running state of a current motor, the running state comprising forward rotation and reverse r...
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WO/2022/247328A1 |
A centrifuge rotor identification method and system. The method is based on a centrifuge rotor identification system. The centrifuge rotor identification system comprises an encoding disk having a plurality of pairs of magnetic poles, a ...
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WO/2022/248383A1 |
Electric drive unit having a brushless DC motor and having a switching bridge for the sensor-controlled commutation of the DC motor by means of at least one Hall sensor included in the DC motor, wherein the Hall sensor is connected to th...
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WO/2022/225551A9 |
An image forming apparatus includes a driving source generating power, a drive transmission apparatus to rotate a toner supply auger using the power transmitted from the driving source, the drive transmission apparatus including a drivin...
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WO/2022/245452A1 |
A motor drive receives a position feedback signal from an encoder operatively connected to the motor. The motor drive executes a speed regulator module on a first periodic interval to achieve desired operation of the motor, and the motor...
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WO/2022/243812A1 |
A method for estimating the magnet temperature in an electrical machine carried out by means of an electronic computer involves estimating a value of a total magnetic flux (Fc) of the electrical machine (EM) and estimating a value of a f...
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WO/2022/244343A1 |
This motor control device controls the driving of an AC motor that is connected to a power converter which carries out power conversion from DC power into AC power and that outputs via a speed reducer a rotation drive force which is gene...
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WO/2022/241269A1 |
A reconfigurable electric motor (or machine) that may be reconfigured to improve performance given particular motor conditions. The motor is part of a motor system including a stator, a rotor, a microinverter network including a pluralit...
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WO/2022/155350A9 |
Methods and systems for estimating force and motor torque in a mechatronic system are provided herein. Such methods and system are suited for improved control of small-scale mechatronic system, particularly a syringe, valve, and cartridg...
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WO/2022/232434A1 |
Power tools described herein include a housing, a motor supported by the housing, a battery pack configured to provide electrical power to the power tool, a user input configured to provide an input signal corresponding to a target speed...
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WO/2022/226579A1 |
A method of electronic commutation of a sensorless brushless DC motor, the motor having a plurality of driving power transistors, the method including the steps of: (a) measuring the open phase voltages across at least one of the driving...
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WO/2022/228923A1 |
The present invention relates to a method for determining the torque (Te) of an electric machine, in which the currents and voltages are measured (MES), and the electrical rotation speed of the rotor of the machine is determined. Next, u...
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WO/2022/226089A1 |
An induction motor assembly includes an induction motor, and one or more switches coupled to selectively inhibit the supply of power from a power source to at least one of a main winding and an auxiliary winding of the motor. A control c...
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WO/2022/217597A1 |
A fault early-warning method and apparatus for a motor driver, being used for achieving fault early-warning of the motor driver. Embodiments of the present application provide a fault early-warning method for a motor driver, comprising: ...
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WO/2022/217699A1 |
Disclosed in the present invention is a resistance-encountering stop control method for a single-phase asynchronous electric motor. The single-phase asynchronous electric motor comprises a controller and an electric motor, wherein the el...
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WO/2022/208911A1 |
The power conversion device converts DC power into n-phase AC power. The power conversion device, when a first voltage and a second voltage lower than the first voltage are applied thereto, outputs an n-phase output voltage on the basis ...
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WO/2022/208022A1 |
The invention relates to a method for selecting a chopping frequency for application thereof to an inverter controlling a rotating electric machine, wherein the chopping frequency is chosen from among multiple predetermined frequencies d...
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WO/2022/200011A1 |
The invention relates to a method for monitoring the operating mode of an electric asynchronous machine with a variable rotational speed, said asynchronous machine being used for driving and braking purposes in a rail vehicle. The asynch...
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WO/2022/194805A1 |
An automatic door operator (10) for use in an entrance system (100) is disclosed herein. The automatic door operator (10) comprises an electric motor (20); a power electronics arrangement (50); a controller (40) being operatively connect...
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WO/2022/197742A1 |
A method of controlling an electric motor includes receiving a duty cycle for the electric motor for delivering a target torque from the electric motor, generating a pulse train, and pulsing the electric motor with the generated pulse tr...
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WO/2022/196007A1 |
This power conversion device comprises: an inverter circuit that converts DC power supplied to a DC terminal to AC power and supplies the AC power to an AC machine, and that converts regenerative power produced by the AC machine to DC po...
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WO/2022/192704A1 |
A portable fan having a power supply, a motor coupled to a plurality of fan blades and powered by the power supply, and a battery pack coupled to the portable fan and configured to provide power to the power supply. The portable fan furt...
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WO/2022/188950A1 |
A method for generating a set of pulse-width modulation control signals for a multi-level power converter. The method includes generating a base reference signal for each of three or more reference phases and determining a maximum refere...
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WO/2022/188926A1 |
The invention relates to an electric machine (1) comprising a stator (2) and a rotor (3), the stator (2) generating a magnetic field that allows a motor torque and/or a motor power to be introduced into the rotor (3), and comprising an a...
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WO/2022/163066A1 |
Provide is a motor control device capable of stabilizing the rotation of a motor even when an encoder pulse temporarily varies upward.　This motor control device comprises a position signal counter (41); a periodic signal generation uni...
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WO/2022/161679A1 |
The invention relates to a method for determining values of a physical parameter of an electric motor, in particular the efficiency of the electric motor, assigned to different working points of the electric motor. In a first method step...
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WO/2022/162720A1 |
This control device (2) controls the operation of a power conversion device (1) comprising a converter (10), a smoothing capacitor (12), and an inverter (14). The control device (2) comprises a voltage command calculation unit (23), a to...
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WO/2022/164530A1 |
Pulsed control of electric motors, and more particularly, to selectively adjusting one or more of a pulsing frequency, an amplitude of the pulses and/or a duty cycle of the pulses for reducing Noise, Vibration and Harshness (NVH) while m...
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WO/2022/158240A1 |
A control device (50) is used in a system (10) that comprises: a rotary electrical machine (30) which includes a rotor (33) having a permanent magnet (34) and a stator (32) having coils (31U, 31V, 31W); and an inverter (40) which has upp...
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WO/2022/151775A1 |
Disclosed in the present application are a motor control method and apparatus. The method comprises: obtaining a first waveform parameter and a second waveform parameter, wherein the first waveform parameter is a waveform parameter of a ...
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