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WO/2024/029456A1 |
The present invention reduces rotation speed fluctuation associated with phase adjustment. A motor drive control device (1) comprises: a control circuit (2) that generates a drive control signal (Sd) which is a PWM signal for controlli...
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WO/2024/028315A1 |
Disclosed is a device (100) for determining the angular position of a rotor (4) of a rotary electric machine on the basis of only two sensor signals delivered by position sensors (20), this device comprising: - a circuit (103) for estima...
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WO/2024/025982A1 |
An apparatus and method for determining electrical characteristics has an acquisition circuit and a control circuit. The control circuit causes a first modulation circuit to issue a first set of modulated signals to a first source of alt...
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WO/2024/025848A1 |
An electric vehicle power control system and method thereof is described to utilize sinusoidal reference signals to implement multiple modes for using power. In some examples, an electric vehicle power control system couples a sine senso...
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WO/2024/019868A1 |
An electric machine controller arranged to direct a power converter to cause a pulsed operation of an electric machine in selected operational ranges to deliver a desired output and to cause a continuous operation of the electric machine...
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WO/2024/016536A1 |
Disclosed in the present invention are a braking system and method for a brushless direct current motor. In the braking process of a brushless direct current motor, a bus voltage value is controlled by means of a braking control module t...
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WO/2024/017430A1 |
The invention relates to the detection (42) of a rotor position (yEM) of an electric motor (10) which comprises at least one stator (12), at least one rotor (14) that can be rotated relative to the stator, thereby changing the rotor posi...
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WO/2024/011709A1 |
A motor current sampling method, a frequency converter, a terminal device, and a storage medium. The motor current sampling method comprises: acquiring a delay setting parameter (S10); when a preset delay condition is met, executing a sa...
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WO/2024/013589A1 |
A high pressure washer (100) is described comprising: - a pump (40) and an electric motor (50) configured to drive the pump (40), where said pump (40) is connected to an inlet duct (15) of a liquid to be pressurised and to a delivery duc...
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WO/2024/007551A1 |
Disclosed in the present invention are an electric-motor control circuit and a control method. The electric-motor control circuit comprises: a power source, a drive circuit, a PWM signal generation circuit, a controller, and a back elect...
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WO/2024/000954A1 |
Disclosed in the present invention is a rotor position detection apparatus for a primary segmented linear electric motor. The primary stage of the primary segmented linear electric motor comprises two stators, each of which is composed o...
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WO/2024/005116A1 |
This motor control device includes a control circuit that, in a first period, controls a high-side switching element of a first arm to be on, controls a low-side switching element of the first arm to be off, controls high-side and low-si...
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WO/2024/000146A1 |
A closed-loop control isolation switch driving apparatus for a driving electric motor. The closed-loop control isolation switch driving apparatus comprises a control cubicle, a mechanism box and a station power supply, wherein a driving ...
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WO/2024/002992A1 |
The invention relates to a method (S0-S6) for operating a household appliance (1), in which, in order to start up a BLDC drive motor (5) of the household appliance (1), an actual rotational speed (ω) of a rotor (7) of the BLDC drive mot...
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WO/2024/002412A1 |
A method for operating an electric motor having a stator and a rotor is characterized in that injection signals in the entire speed range in which the electric motor is operated are used to estimate the rotor position and/or the speed of...
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WO/2024/004448A1 |
One embodiment of the signal generation device of the present invention comprises: N sensors (N is a multiple of 3) that output N phase signals in accordance with the rotation angle of a rotating body; and a signal processing unit that c...
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WO/2023/247947A1 |
A permanent magnet electric rotating machine and control system is described. A plurality of phase windings may be energized by a single excitation current from a power supply. A commutation circuit, operationally independent of the powe...
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WO/2023/245480A1 |
A fault detection method and apparatus for a phase voltage sampling circuit, and a movable platform, wherein a phase voltage sampling circuit comprises a microcontroller and a resistor circuit connected to the microcontroller: inputting ...
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WO/2023/245304A1 |
An electric rotary machine for controlling power flow between two asynchronous AC grids is disclosed, wherein the electric rotary machine comprises two or three parts, each part being an electric machine able to work in motor or generato...
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WO/2023/242799A1 |
An AC-to-AC converter is described that comprises input terminals for connection to an AC source, output terminals for connection to a load, a transformer having a primary winding and a secondary winding, a primary-side switch, a pair of...
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WO/2023/237086A1 |
An electric control apparatus and an electric control method. The electric control apparatus (10) is used for controlling an inverter (209), which is controlled by a pulse width modulation signal, to provide heating electric energy, whic...
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WO/2023/238329A1 |
This motor control device comprises: a first motor (2) and a second motor (3) mounted on a frame (1); a second controller (13) that determines a second deviation suppression signal, which is for driving the second motor (3), such that a ...
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WO/2023/233045A1 |
The present invention relates to a device intended to be connected to a rotary electric machine comprising a rotor and a stator with one or more phases (1), by means of which device the machine provides maximum torque at all times. The d...
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WO/2023/230754A1 |
Provided is a motor control system for controlling a direct-current brushless motor for an electric tool. The direct-current brushless motor comprises a magnet built-in type rotor, and a stator having three phase windings. The motor cont...
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WO/2023/233104A1 |
One aspect of the invention relates to a device for powering a synchronous motor comprising a control unit (U1) for controlling transistors of a voltage sine wave inverter (1) comprising an inductor (Li) connecting a first and second nod...
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WO/2023/232446A1 |
The invention relates to a method for sensorless block commutation of a brushless DC motor, in which method a current sensor for detecting a current flowing through the DC motor, a detection circuit for detecting the zero crossings of th...
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WO/2023/232447A1 |
The invention relates to a method for operating a circuit assembly in the context of a BEMF zero crossing identification which serves as the basis for a sensor-free commutation of a brushless DC motor, wherein the circuit assembly has at...
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WO/2023/228945A1 |
The present invention improves the stability of the operation of a motor when a commutation mode is switched. This motor drive control device (3) comprises: a control circuit (1) that generates a drive control signal (Sd); and a drive ...
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WO/2023/228885A1 |
According to the present invention, an estimator: sets, to Ts(=2×Tc=Th), a control period in which a process pertaining to a sensorless vector control is executed; applies a high frequency voltage of a period Th corresponding to a frequ...
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WO/2023/228928A1 |
The present invention improves the drive efficiency of a motor. A motor drive control device (1) includes: a target point determination unit (12) that is synchronized to the induced voltage of a U-phase coil (Lu) of a motor (5) and det...
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WO/2023/228944A1 |
The present invention suppresses an increase in power consumption of a motor. A control circuit (1) comprises: a commutation mode setting unit (11) that selects and sets as a commutation mode a first commutation mode in which a coil (4...
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WO/2023/226253A1 |
Disclosed in the present invention are a permanent-magnet electric motor system and a soft start method. The permanent-magnet electric motor system comprises a electric motor unit and an electric motor controller. The electric motor cont...
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WO/2023/223071A1 |
A motor control method for domestic appliances for reducing noise during use of the domestic appliances including laundry machines and kitchen machines. The method obtains a cancellation signal configured to reduce the noise of the domes...
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WO/2023/222026A1 |
The present disclosure relates to a power tool system and a control method therefor. The system comprises: a motor, which is connected to a tool body; a driving circuit, which comprises a power switch transistor, the power switch transis...
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WO/2023/222152A1 |
The invention relates to a method for operating an electric machine (1), comprising a stator (2) and a rotor (3), which is rotatable relative to said stator with variation of a rotation position at a rotor rotational speed n, wherein the...
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WO/2023/225363A1 |
A method includes, at a controller: directing current through a set of coil assemblies in an electric motor based on a first commutation technique; in response to an operating speed of the electric motor exceeding a first operating speed...
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WO/2023/222285A1 |
An encoder device (8) of a rotary electrical drive (1) having a stator (2) and a rotor (3) mounted rotatably relative to the stator (2) communicates a first binary signal profile (Sa) via a first signal line (9a), a second binary signal ...
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WO/2023/221531A1 |
The present invention relates to the field of switched reluctance motors. Disclosed are a winding switching type switched reluctance motor power circuit and a control method therefor. The circuit comprises a power converter for implement...
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WO/2023/221740A1 |
Provided in the present invention are an efficiency optimization control method and system for a permanent magnet synchronous motor. The method comprises the following steps: step 1, solving an approximate optimal d-axis current of a per...
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WO/2023/222980A1 |
The invention relates to a permanent-magnet synchronous three-phase rotating machine (40), provided with a control device comprising a computer (100) for controlling an inverter (30) that drives the phases of said machine, for which purp...
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WO/2023/213701A1 |
The invention relates to a method and a device for monitoring the operation of a transport device (1) in the form of a longitudinal stator linear motor having a transport section (2) along which a multiplicity of drive coils (3) are arra...
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WO/2023/214150A1 |
A method of determining a position of a rotor of a brushless permanent magnet motor includes exciting a phase winding of the motor for an excitation period by applying a voltage to the phase winding using an inverter of the motor, and tu...
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WO/2023/214148A1 |
A method of controlling a brushless permanent magnet motor includes exciting a phase winding of the motor by applying a voltage to the phase winding using an inverter of the motor, and turning off the inverter for a first time interval. ...
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WO/2023/213967A1 |
A method for operating a position-sensor-free BLDC motor of an oil pump (19) is proposed. During start-up and a run-up of the oil pump (19), the BLDC motor is operated with feedforward-controlled excitation in order to heat an oil convey...
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WO/2023/214149A1 |
A method of controlling a brushless permanent magnet motor includes exciting a phase winding of the motor for an excitation period, wherein exciting the phase winding comprises applying a voltage to the phase winding, and freewheeling th...
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WO/2023/209349A1 |
A method of controlling a brushless permanent magnet motor includes sequentially exciting and freewheeling a phase winding of the motor over a time interval between successive commutations of the phase winding. Exciting the phase winding...
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WO/2023/206931A1 |
Disclosed in the present invention are a BLDC motor with a networking communication function, and an electrical device. The BLDC motor comprises a motor body and a motor controller, wherein the motor body comprises a stator assembly and ...
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WO/2023/208945A1 |
The aim of the invention is to provide a method for position measurement and position control for an electromagnetic transport system (1) comprising a stator (2), a rotor (3) and a position-control circuit (200), which method is improved...
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WO/2023/208271A1 |
The invention relates to a controller (1) for controlling and/or regulating the supply of energy to an electric machine (2) comprising a rotor (3). The controller (1) has a first processor (4) and a second processor (5), wherein the firs...
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WO/2023/203398A1 |
A device for magnetic descaling of the fluid of thermal facilities by a brushless pump with a direct magnetic core and the capability of selective conduction on the claimed filter, which is composed of the following parts, the central se...
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