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WO/2021/065954A1 |
This motor drive method is a method in which a motor drive device drives a motor, the motor drive device comprising: an inverter that adjusts supply power to the motor, which is a synchronous machine; and a controller that controls the i...
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WO/2021/064308A1 |
The invention relates to a multi-star multi-phase synchronous machine with disconnected neutrals, in which a current regulator (20) is provided for each of the stars, which delivers direct ud and quadratic uq voltage values from differen...
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WO/2021/067059A1 |
A drain cleaning machine includes a brushless direct current (DC) motor configured to rotate a snake about the snake axis. An electronic processor is configured to control power switching elements to drive the brushless DC motor. In a fi...
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WO/2021/065938A1 |
Provided is a method by which a motor driving device drives a motor, the motor driving device comprising an inverter that adjusts the power supplied to the motor, which is a synchronous motor without position sensors, and a controller th...
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WO/2021/056344A1 |
Disclosed are a detection method and apparatus, a control method and apparatus, a power component, a movable platform and a storage medium. The detection method comprises: determining measured value information of an electric motor at th...
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WO/2021/061407A1 |
Methods and apparatus to control a three-phase BLDC motor with a curve transformer having an index value for each stored input value and output value for providing stored corner points for outputs of the curve transformer. The curve tran...
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WO/2021/058067A1 |
The invention relates to a control unit for controlling a motor of an oil pump. The control unit comprises a receiver unit which is configured to receive a setpoint pressure; a first determining unit which is configured to determine a to...
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WO/2021/051193A1 |
Brushless direct current (BLDC) motors are becoming more common, such as in cars and other vehicles. Unreliable BLDC motors or control systems can lead to risk of people's safety. A redundant BLDC control system is provided to control tw...
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WO/2021/048388A1 |
Method for determining the voltage UL generated by the inductive portion (6) of a measuring resistor (2) present in an electronic circuit comprising a signal generator (1), at least one stator winding (3) that is connected to the signal ...
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WO/2021/047949A1 |
The invention relates to a method for monitoring a motor unit (2), said method comprising at least the following steps: - detecting a starting rotor position (Start-RP), - determining or specifying at least one non-safety-critical positi...
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WO/2021/044717A1 |
A composite sensing device (130) is provided with: a plurality of sensing devices (131_1 to 131_n) that detect different state quantities; a plurality of signal conversion circuits (132_1 to 132_n) that convert detection signals of the r...
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WO/2021/044325A1 |
It is disclosed a method for sensorless estimation of a position error signal (ϵθ) for a synchronous reluctance machine (5), said synchronous reluctance machine (5) comprising a stator and a rotor, said method comprising: receiving an ...
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WO/2021/042184A1 |
The present invention patent describes a control device for brushless permanent-magnet motors, pertaining to the field of articles for the generation, conversion or distribution of electrical energy, and more specifically to the branch o...
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WO/2021/044758A1 |
This rotation detector is for detecting the rotation amount of a rotary shaft of a motor, and is provided with: a power generation magnet which is integrally mounted to the rotary shaft and which has four or more magnetic poles arranged ...
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WO/2021/037533A1 |
The invention relates to a method for operating an electric machine (100) which is supplied with voltage by a converter with which a DC voltage is converted into an AC voltage, wherein phase voltage values (Ua, Ub, Uc) to be applied to t...
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WO/2021/036794A1 |
Provided in the present invention are a control method and a controller. The method comprises: collecting the rotor position of a permanent magnet synchronous motor, the rotational speed of the motor, a quadrature-axis current, a direct-...
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WO/2021/033432A1 |
The present invention addresses the problem of providing an electric power tool in which it is possible to raise, if necessary, the upper limit for the working torque of an electric motor. This electric power tool (1) is provided with: a...
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WO/2021/031511A1 |
Disclosed is a vertical lighting bladeless variable-frequency fan, comprising: a machine body (100), a wind power system (200), an air outlet stand column (300), a lighting device (400), and a silencing structure (500), wherein the wind ...
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WO/2021/032349A1 |
The invention relates to a control device (8) for operating an electrical machine (1), wherein the machine (1) comprises a rotor (2), a stator (4) and power electronics (7), wherein the rotor (2) is non-rotatably mounted on a shaft (3) r...
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WO/2021/031138A1 |
Provided is an AC power tool, comprising a brushless motor (21); a power supply module (20), arranged connected to AC power so as to supply power to a stator winding; a voltage conversion module (23), arranged connected to the AC power t...
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WO/2021/028123A1 |
A method for managing a torque to be supplied on a shaft of an electric motor comprising the following steps: - creating and initialising a correction data table; - acquiring a torque instruction; - determining a torque command; - measur...
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WO/2021/028166A1 |
The invention relates to a method for determining a rotor position of an electric motor (2) of a power tool (10), in particular of a screwdriving power tool, comprising the steps: testing (S4) whether a first electric motor current (I1) ...
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WO/2021/023746A1 |
Acquiring and control system for a vehicle comprising an electric motor, the system comprising: - at least one first sensor of angular position able to indicate an estimate of the relative position of a rotor of the electric motor with r...
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WO/2021/016782A1 |
Provided in embodiments of the present disclosure are a commutation control method and device for a brushless direct current motor, and a storage medium. The method comprises: performing detection on a position of a rotor in a brushless ...
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WO/2021/019250A1 |
A flight control system (20) comprising: • at least one drive unit (4); • at least one wing (5) operatively connected to the at least one drive unit; and • a controller (21) configured to: • send a control signal to the at least ...
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WO/2021/018104A1 |
A power tool includes: a housing (72), a brushless motor (56) disposed inside the housing (72), and a controller (230). The controller (230) is configured to receive power-off signals and power-on signals. Upon receiving a power-on signa...
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WO/2021/012866A1 |
A motor overvoltage protection circuit, an undervoltage protection circuit, a voltage protection circuit and a motor, wherein the motor overvoltage protection circuit comprises: a first controllable switch, a control terminal of the firs...
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WO/2021/015183A1 |
This rotary electric machine comprises a rotor (21) and a stator (31). The rotor (21) includes permanent magnets (23). The permanent magnets (23) provide a plurality of field magnetic poles (26) and at least one reference magnetic pole (...
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WO/2021/005725A1 |
A driving device (100), provided with a power converter (2), a magnetic-pole-position-specifying unit (5a), a magnetic-pole-position-specifying unit (5b), a subtractor (8), and a current control unit (6). The power converter (2) supplies...
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WO/2021/002002A1 |
This electric motor drive device is provided with an inverter (30) for driving an electric motor (7) for driving a load element having a periodic variation in the load torque. When stopping the electric motor (7) by controlling the inver...
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WO/2021/001850A1 |
The present invention relates to efficient Direct Current fans or in short ( SEDC Fans), that run on 12/24 volts DC power source. These fans take power in the form of pulses at regular intervals there by increasing the overall efficiency...
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WO/2021/001087A1 |
The invention relates to a position detection device for determining the position of the diaphragm or the drive piston of an electric-motor-driven diaphragm pump, in particular detecting the upper and lower reversal point (Po, Pu) in the...
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WO/2020/260564A1 |
The invention relates to a method for moving a rotor (20) in a planar drive system (1). The planar drive system (1) has a first stator module (11), a second stator module (12), and a rotor (20), and the first stator module (11) and the s...
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WO/2020/260037A1 |
The present invention provides a control system (10) for an electrical machine (EM) for generating a braking torque by means of the electrical machine (EM) at a traction drive, comprising a control device (SE), wherein the control device...
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WO/2020/253821A1 |
Provided is a ride-on lawnmower, comprising: a travel component, a power output component, a power supply device, a drive circuit, an operating device, and a control module; the travel component comprises a travel wheel and a first motor...
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WO/2020/255322A1 |
This electric device (1) comprises: a motor (11b) that has a plurality of coils (111); and a detachable power supply device (15) that has a connection unit (15a) electrically connected to the plurality of coils (111), and a DC power supp...
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WO/2020/249313A1 |
A method for determining the angle (ϕ) of the rotor (18) of an electric motor (12) comprises the following steps: receiving a first rotor position signal (P1) from a rotor position sensor (15) by means of a control unit (14), the first ...
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WO/2020/248412A1 |
Disclosed are a motor controller and a motor applying same. The motor controller comprises a control box and a control board mounted within the control box. The control box is provided therein with at least two cavities, one of which is ...
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WO/2020/249557A1 |
The invention relates to an assembly for detecting the direction of rotation of a multi-phase electric motor (1), comprising multiple single-phase converters (3), each supplying a phase of the electric motor (1) with current (1.1, 1.2, 1...
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WO/2020/249329A1 |
The invention relates to a method for determining a rotor position of an electric rotating machine (10) which is fed by means of a PWM-controlled inverter (40). Specific injection voltages (uinj), which are composed of predefined voltage...
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WO/2020/245997A1 |
This motor control device (100) has: an excitation command preparing unit (103) for exciting an excitation position of any one phase of a motor (200) having a plurality of phases; and a polarity estimating unit (104) for estimating the p...
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WO/2020/239326A1 |
The invention relates to a system (1) comprising a control device (10) with central electronics (11) designed for the intended connection and operation of differently coded electric motors (En) with different motor characteristics (Mn) a...
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WO/2020/243549A1 |
A motor drive system and method for determining an optimized efficiency of the motor drive system are provided. The motor drive system includes a system controller, a motor drive having includes an inverter configured to generate the AC ...
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WO/2020/239385A1 |
The invention relates to a commutation method and to a single-strand EC motor with a winding strand with two winding connections, comprising a current regulating device in the winding strands between the winding connections, wherein the ...
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WO/2020/236163A1 |
An example of an apparatus with an input connection to receive an input tachometer signal. The input tachometer signal may include a frequency to indicate a fan speed. A pulse width modulator may be coupled to the input connection and ge...
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WO/2020/230339A1 |
Provided is a rotating electrical machine control device with which it is possible to suppress an increase in the frequency of a switching frequency resulting from an estimating voltage command, while reducing a delay in estimating a pol...
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WO/2020/232199A1 |
The present invention provides, in one aspect, a router including a motor unit and a base configured to selectively receive the motor unit to support the router on a work piece surface. The motor unit includes a motor and a spindle confi...
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WO/2020/230495A1 |
The present invention addresses the problem of appropriately controlling a motor by ensuring speed calculation accuracy even when the motor is frequently switched between forward rotation and backward rotation. The present invention is p...
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WO/2020/225024A1 |
The invention relates to a regulated brushless electric motor (100), in particular to a brushless DC motor, preferably for driving a compressor (300) for generating compressed air, in particular for a compressed-air consumer of a vehicle...
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WO/2020/224645A1 |
A speed regulation control system for a windshield wiper, comprising an electric motor (3), a connecting rod structure, a control module (1) and a sensing module (2), wherein the connecting rod structure converts a unidirectional movemen...
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