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WO/2024/000712A1 |
A control method for a direct drive system (100). The method comprises the following steps: S1, outputting a current to a winding (23) of a corresponding stator (2) by means of a driver (4), and enabling the winding to drive a rotor (3) ...
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WO/2024/002315A1 |
Disclosed in the present application are a global control method and apparatus for a permanent magnet synchronous motor and a permanent magnet synchronous motor. The global control method comprises: acquiring a three-dimensional current ...
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WO/2024/000713A1 |
Provided in the present invention is a linear drive device, comprising a stator; a plurality of movers which are all slidably arranged on the stator; a drive assembly, the drive assembly being used for driving the plurality of movers to ...
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WO/2024/000714A1 |
A multi-mover direct drive transmission system (100), comprising a stator unit (1), mover units (2), and drivers; the stator unit (1) comprising a frame (11), coil windings (12) and Hall elements (13); the direct-drive transmission syste...
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WO/2023/246481A1 |
The present application discloses a driving circuit having EMI suppression and a vehicle motor driving system. The driving circuit having EMI suppression comprises: a first filtering unit, a second filtering unit, a third filtering unit,...
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WO/2023/243320A1 |
A drive device according to the present disclosure comprises: a three-phase motor having a stator provided with stator windings; and first and second inverters. First to third stator windings are electrically separated from other stator ...
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WO/2023/241825A1 |
The present invention pertains to a method for detecting an onset of a pole slip in a generator as well as a corresponding control unit and generator, in particular to predict a pole slip prior to an actual occurrence of a pole slip in o...
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WO/2023/243361A1 |
Provided is a work machine capable of controlling a connection switching unit at an appropriate timing. A computing unit 50 is capable of performing connection switching control for switching the coil connection scheme of a motor 340 fro...
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WO/2023/237501A1 |
Disclosed are an electric machine control circuit (100), an electric drive assembly system and a vehicle, the electric machine control circuit (100) comprising: a three-phase AC electric machine (111); a three-phase inverter (112), where...
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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/2023/237018A1 |
Disclosed in the present invention is a nonlinear predictive position control method suitable for a dual-axis permanent magnet servo system. Considering that uncertainty disturbance is present in a dual-axis permanent magnet synchronous ...
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WO/2023/238672A1 |
An actuator 120 includes a movable element 124 including a magnet 122, and a plurality of voice coils L1-L3 arranged along the movement direction of the movable element 124. A controller 230 generates a control signal ctrl. A drive unit ...
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WO/2023/232336A1 |
In a method for monitoring a synchronous motor, in particular for monitoring an excitation device of the synchronous motor, an individual value dependent on the power factor of the synchronous motor is measured, wherein a monitoring valu...
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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/2023/228583A1 |
The present invention provides a transport device that, when a container carrier is being driven, can improve the sensitivity with which the position of the container carrier is detected while suppressing any increase in heat loss due to...
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WO/2023/229439A1 |
An electronic device according to one embodiment may comprise a housing, a lens assembly disposed along an optical axis, and an AF actuator. The AF actuator can include: a first AF magnet disposed on a first side, oriented in a first dir...
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WO/2023/223374A1 |
This power conversion device comprises: a voltage application means that converts DC voltage to AC voltage and that supplies the converted AC voltage to a three-phase motor; a current detection means for detecting current flowing through...
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WO/2023/223631A1 |
This motor control device comprises temperature detection elements (45a, 46a) that are mounted on a circuit substrate (70) on which a first power conversion circuit (42a) and a second power conversion circuit (42B) are mounted, and that ...
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WO/2023/223840A1 |
This electric drive device causes vehicles (10, 300, 400) to travel and comprises drive units (20, 20R, 20L) for rotating the drive wheels (12, 12R, 12L, 330, 410, 420) of the vehicles. The drive units have: a plurality of system devices...
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WO/2023/221600A1 |
The present application discloses a motor controller, a power system, and an electric apparatus. The motor controller comprises a box body, a first power device, and a plurality of second power devices. The box body is provided with a co...
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WO/2023/223630A1 |
This motor control device comprises: an abnormality determination unit (51) which determines whether a temperature detection circuit is abnormal; a first temperature estimation unit (52) which, when the temperature detection circuit has ...
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WO/2023/221386A1 |
The present invention aims to reduce the requirement of a variable-frequency drive system for the withstand voltage of a single power unit, and also aims to avoid the shutdown of the variable-frequency drive system caused by the damage o...
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WO/2023/221763A1 |
The present application discloses a method and apparatus for controlling output torque of a motor, and an electronic device. The control method comprises: obtaining a dq-axis voltage control value of a motor; determining a resolver angle...
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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/2023/222523A1 |
The invention relates to a synchronous electric machine (10) for aircraft, which comprises a stator (13) and a wound rotor (38) inserted into the stator, the stator comprising two sets of stator coils (47, 49) intended to be connected to...
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WO/2023/217698A1 |
The invention relates to an electric motor unit (1), in particular a permanent magnet synchronous machine, comprising a rotor (10) and a stator (20), a control unit (30), a plurality of coil units (22), a plurality of switch units (24) a...
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WO/2023/214453A1 |
In the present invention, a drive device (100) comprises: a boost converter (3); an inverter (4); a connection switching device (20) that alternatingly switches the windings of an electric motor (1) between a Y connection and a ∆ conne...
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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/2023/208272A1 |
The invention relates to a method for determining an initial rotor position of a rotor (1) of an electric machine (2), in particular a synchronous electric machine.
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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/2023/203027A1 |
Device (2) for operating an electromotive axle drive unit (4), having an inverter (6) for supplying high-voltage power to an electric motor (8) of the electromotive axle drive unit (4), wherein the inverter (6) has a first pole (10) and ...
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WO/2023/205513A1 |
Embodiments of the disclosure provide an electric drive motor system that includes a stationary-side and a rotating-side. The stationary-side includes an only-stationary-side (OSS) compensation network. A first OSS compensation element o...
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WO/2023/201634A1 |
A moving armature segmented permanent magnet synchronous linear motor and a driving control method, solving the problems of how to effectively reduce the thrust fluctuation of motors and increase the thrust density of the motors, and rel...
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WO/2023/203746A1 |
A motor driving device according to the present disclosure comprises: a digital control unit that executes digital control for driving a motor; an analog control unit that outputs an analog signal which is used for control of the motor; ...
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WO/2023/201412A1 |
The current profile of excitation current provided to the electrical coils of a switched reluctance machine is controlled to reduce acoustic noise. A plurality of potential current waveforms can be evaluated to select a desired waveform ...
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WO/2023/205514A1 |
Embodiments of the disclosure provide an electric drive motor system that includes a stationary-side, a rotating-side, and a stationary-side sensor system operable to detect current on the stationary-side and send current-based sensor re...
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WO/2023/195411A1 |
Provided is a linear motor drive device which has a plurality of half-bridges (11-17) and a stator in which a plurality of coils (1-6) connected in series are arranged so as to be lined up, both ends of the serial body of the coils and c...
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WO/2023/195069A1 |
This linear motor drive device includes a stator in which multiple coils (1-6) connected in series are arranged side by side, and multiple half bridges (11-17), and is configured so that the two ends of a coil series body and connection ...
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WO/2023/189920A1 |
If non-contact support of a shaft (20) is not being carried out by a support part (11), touchdown bearings (50) rotatably support the shaft (20) by contacting the shaft (20). In an activation process performed prior to non-contact suppor...
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WO/2023/186182A1 |
Embodiments of the present invention provide a linear resonant motor driving device and method. The device comprises a detection module, an electromotive force calculation module, a phase calculation module, a signal processing module, a...
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WO/2023/183171A1 |
An electric machine is provided. A power converter is coupled between a power supply and a wound field synchronous machine. The power converter is arranged to provide a pulsed operation by providing a pulsed DC current to field windings ...
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WO/2023/182111A1 |
Disclosed is a drive device for winding-field-type rotary electrical machines, said drive device comprising: a first switching element between one end of a rotor winding and a high-potential-side line of a power source; a second switchin...
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WO/2023/180942A1 |
The present invention relates to a pedal-assisted light land vehicle (10) comprising - an electric motor (21), configured to function as a motor and as a generator associated with a wheel (12) of the light land vehicle (10), comprising a...
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WO/2023/181521A1 |
A controller (31) controls the generative force of a magnetic actuator (7, 10) serving as a force generation mechanism. The controller (31) is provided with a thrust command correction value calculation unit (33) that obtains the correct...
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WO/2023/180675A1 |
The invention relates to a method for controlling a synchronous electric motor, the method comprising: generating (400) a torque reference based on a mechanical setpoint; measuring (405) the position and determining the speed of the moto...
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WO/2023/175893A1 |
A drive device (100) includes: a converter (3) that rectifies AC voltage supplied from an AC power supply (2); an inverter (4) that generates, from the rectified voltage obtained by the converter (3) AC voltage corresponding to a set rot...
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WO/2023/173601A1 |
Provided are a discrete space vector modulation-based permanent-magnet synchronous motor predicted torque control method, system and apparatus, and a computer readable storage medium. The method comprises: first selecting a target small ...
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WO/2023/174359A1 |
An electric valve and an alternating current asynchronous electric motor therefor. The electric valve comprises a valve, a transmission device, the alternating current asynchronous electric motor and a driver. The alternating current asy...
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WO/2023/172780A1 |
Innovative techniques to design and generate haptics waveforms are proposed. The proposed techniques reduce or eliminate audible noises being generated by a haptic actuator during operation. A haptic controller may compose a voltage wave...
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WO/2023/160023A1 |
The present application provides a permanent magnet synchronous motor static initial position estimation method. The permanent magnet synchronous motor static initial position estimation method comprises: sequentially injecting a rated p...
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