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WO/2022/233384A1 |
A method for identifying the magnetic anisotropy of an electric three-phase machine, comprising a rotor and a stator, wherein the three-phase machine is actuated by way of clocked terminal voltages in accordance with the method of pulse-...
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WO/2022/228624A1 |
The invention relates to a method for starting a rotor of a single-phase claw pole motor, said claw pole motor comprising a permanent-magnet rotor which performs a movement in a running direction during operation at nominal value, furthe...
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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/2022/228623A1 |
The invention relates to a method for starting a rotor of a single-phase claw pole motor, said claw pole motor comprising a permanent-magnet rotor which has a plurality of locking positions and performs a movement in a running direction ...
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WO/2022/224559A1 |
A motor control device according to the present invention includes an inverter that supplies an alternating current to a motor installed in a vehicle, a current detecting unit that detects the alternating current, a position detecting un...
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WO/2022/224370A1 |
This motor control device (100) comprises: a speed detector (5) that detects the speed of a motor (2); a speed controller (4) that generates a torque command on the basis of the speed of the motor and a speed command; a correction calcul...
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WO/2022/217811A1 |
Disclosed in the present utility model is a direct-current brushless motor controller having a lightning protection and surge protection circuit, comprising a rectifier module, an inverter circuit, an energy storage capacitor C1, a direc...
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WO/2022/218242A1 |
An electric motor torque control method, comprising: determining, according to a required torque (T9) and an actual torque (T10) of an electric motor, that the electric motor needs to be subjected to torque zero-crossing control; control...
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WO/2022/219795A1 |
A rotary machine control device comprising: a first inverter that, on the basis of a first DC voltage, applies an AC voltage to a 3-phase winding in a first system in a rotary machine; a second inverter that applies an AC voltage to a 3-...
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WO/2022/213674A1 |
The present application provides a dual-motor control system and method. The dual-motor control system comprises: a first fault signal detection circuit, configured to receive first fault detection information fed back by a first driving...
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WO/2022/215872A1 |
The present invention relates to a motor driving control system and a control method thereof. The purpose of the present invention is to provide: a motor driving control system which can change current limiting logic, which is applied to...
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WO/2022/206074A1 |
The present application discloses a motor torque zero-crossing parameter processing method and system, and a vehicle. The motor torque zero-crossing parameter processing method comprises: determining that a torque zero-crossing process n...
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WO/2022/208913A1 |
One embodiment of a position detection device according to this invention comprises three magnetic sensors and a signal processing unit for processing a three-phase signal output from the three magnetic sensors. The signal processing uni...
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WO/2022/206011A1 |
The present invention relates to a circuit structure for implementing lead/lag commutation of an electric motor. The circuit structure comprises: a Hall angle mapping module for receiving three Hall signals generated by a Hall module of ...
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WO/2022/208912A1 |
This motor control device controls a motor. The motor comprises a rotor, a stator, and a Hall sensor. The stator has multi-phase windings. The Hall sensor detects the rotation position of the rotor. The motor control device comprises an ...
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WO/2022/206088A1 |
The present invention relates to a circuit structure for compensating for a Hall deviation of a brushless direct current motor. The circuit structure comprises: a CPU, into which a register value is written; an angle controller, which co...
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WO/2022/207499A2 |
The present invention relates to a method for providing a commutation interval for a three-phase electric motor (10). The method comprises providing an initial commutation interval for operation of the three-phase electric motor (10), th...
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WO/2022/206027A1 |
A motor control method and apparatus and a terminal device. The motor control method comprises: determining a first current component of a first motor current under a two-phase stationary coordinate system α-β, and determining an elect...
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WO/2022/212544A1 |
Systems, methods, and computer-readable media are disclosed for closed-loop control of a motor in a LIDAR system over a wireless power interface using data feedback over a unidirectional data communications interface. An example method m...
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WO/2022/202817A1 |
A synchronous motor control device (100) for controlling driving of a synchronous motor through sensorless control comprises: a DC excitation instruction generation unit (41) that generates an instruction for supplying, to the synchronou...
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WO/2022/198279A1 |
The invention relates to a rotary blood pump including a housing having an internal chamber, a blood inlet port and a blood outlet port, a rotor including a plurality of blades and being adapted to rotate within the chamber. The pump inc...
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WO/2022/202806A1 |
Provided is a control device (100) for a synchronous motor, the control device comprising: a DC excitation command generation unit (55) which generates a command for sending a DC current with a fixed current phase to a synchronous motor,...
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WO/2022/201631A1 |
A motor control device is provided with: a control unit for causing a current to flow under PWM control between two of three terminals of a three-phase motor; a first signal information acquisition unit for acquiring first signal informa...
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WO/2022/201344A1 |
Provided is a magnetic gap length estimating device that does not require an electric current sensor and an electric current load with which the need to measure a voltage at a neutral point of a connection is obviated. This magnetic ga...
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WO/2022/195348A1 |
A brushless DC motor may include an annular rotor including a plurality of annular sectors. Each exemplary annular sector includes a respective array of permanent magnets embedded in and equally spaced circumferentially around each respe...
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WO/2022/193208A1 |
The present invention relates to an electric tool and a system and method for protecting an electric tool to prevent misuse of same. The system comprises: at least one sensor, which detects at least one operating state of an electric too...
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WO/2022/195921A1 |
This device for driving a synchronous electric motor comprises a current detection unit that detects a phase current flowing into the synchronous electric motor, and a magnetic pole position estimation unit that estimates a magnetic pole...
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WO/2022/189310A1 |
Linear electric motor (1) comprising a stator (3) comprising a plurality of stator segments (3a, 3b, …3n) and a drive system comprising at least one pair of drive units (4), a first drive unit (4a) of said pair connected to a first sta...
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WO/2022/191607A1 |
In an electronic device comprising at least one servo motor, the servo motor comprises: a communication circuit; a driving circuit; a motor; a sensor; and a control circuit, wherein the control circuit may: control the at least one servo...
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WO/2022/185343A1 |
The embodiments herein provide a multitude of single-phase Switch Reluctance Motor (SRM) arranged in a suitable fashion in order to achieve uniform torque with complete material utilization. The embodiment herein also provides a series o...
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WO/2022/185381A1 |
Provided is a rotating machine control device capable of reducing the effective value of a bus AC component by taking advantage of flexibility that two sets of armature windings and two sets of inverters are provided, without the necessi...
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WO/2022/185547A1 |
The purpose of the present invention is to solve the problem in which a motor no longer follows a control signal during high-speed rotation if high-precision positioning accuracy is achieved in a low-speed rotation range. A rotary enco...
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WO/2022/180368A1 |
A method is described for controlling a three-phase permanent-magnet motor. The method comprises sequentially exciting and freewheeling phases of the motor. The phases are freewheeled when a magnitude of phase current rises to an upper t...
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WO/2022/180366A1 |
A method is described for determining an initial position of a rotor of a brushless motor. The method comprises determining a rise time difference for each of three different pairs of voltage vectors, and determining the initial position...
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WO/2022/180367A1 |
A method of controlling a brushless permanent magnet motor having a plurality of phase windings and an inverter for applying voltage vectors to the plurality of the phase windings, the method including monitoring phase current flowing th...
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WO/2022/180365A1 |
A brushless permanent magnet motor has a phase winding, an inverter for applying voltage vectors to the phase winding, and a controller for controlling the inverter. The inverter has a plurality of high side switches and a plurality of l...
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WO/2022/180286A1 |
The mechanism enables torque protection in a brushless motor without the need to use measurement of the current drawn, establishing the torque level based on measurement of the brushless motor rotation speed. The rotation speed correspon...
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WO/2022/176614A1 |
Disclosed is a motor drive device (13) for driving a brushless DC motor (5). A motor drive device (13) comprises: switching elements (4a-4f) connected to a brushless DC motor; a position detection unit (6) which detects a magnetic pole p...
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WO/2022/176507A1 |
One aspect of this position detection device comprises: a first sensor group including N (N is a multiple of 3) first magnetic sensors that face a magnet rotating synchronously with the rotation axis of a motor and that are positioned at...
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WO/2022/178014A1 |
A motor control determines if a motor is rotating at steady state velocity and then populates a table with information about each individual motor sector. At steady state velocity, the duration of the motor within an electrical sector is...
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WO/2022/175473A1 |
Disclosed is a method for controlling an operating device (2) for operating a screen (3) of a home automation shading system (1) between at least a first position and a second position, the operating device comprising: - a first actuator...
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WO/2022/176615A1 |
A motor drive (13) is provided which drives a brushless DC motor (5). The motor drive (13) is provided with: a position detection unit (6) which detects the position of the brushless DC motor (5) from the induced voltage of the brushless...
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WO/2022/174284A1 |
An electronic clutch for a sensorless brushless DC motor, wherein the clutch does not utilise any rotor position sensors in determining its operation. Preferably the clutch utilises a voltage measurement across a series of power transist...
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WO/2022/170548A1 |
Provided is a motor braking device for a N-phase brushless motor. The motor braking device includes a switching circuit adapted to connect the N-phase brushless motor to a power supply, the switching circuit comprising a high side switch...
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WO/2022/172472A1 |
The present invention is a motor control device having a feedback system including a plurality of controllers to which a feedback signal related to the operation of a motor for a control shaft configured to bear a prescribed unbalanced l...
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WO/2022/172473A1 |
A motor control device drive-controls a motor for a control shaft that is configured to have a predetermined unbalanced load applied thereto. The motor control device comprises: a control unit having a feedback system that includes a plu...
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WO/2022/169575A1 |
A multiphase motor control system and method of operation. Discloses embodiments comprise receiving multiphase reference commands, transforming the multiphase reference commands into corresponding reference symmetrical components, receiv...
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WO/2022/168340A1 |
This motor control device comprises a feedback system including a plurality of controllers to which feedback signals relating to operation of a motor are inputted, and the device executes, in a state where the motor is halted by a contro...
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WO/2022/159164A1 |
A method includes determining a vector state of an alternating current (AC) electrical machine. The method includes, when the vector state is a zero-vector state, obtaining a plurality of phase current samples of the AC electrical machin...
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WO/2022/159638A1 |
A controller for a winch may include a speed input configured to receive a speed signal corresponding to a speed of a motor of a winch, and a current sense input configured to receive a signal corresponding to a current of the motor. The...
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