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WO/2024/078700A1 |
A method (400) for safely starting an alternating-current, AC, motor from a pre-loaded stationary condition, the method comprising: applying (402) a brake to immobilize the AC motor's axle; feeding (404) the AC motor with a predefined dr...
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WO/2024/078146A1 |
The present invention provides a motor starting method and a motor starting circuit. The motor starting method comprises: 1) obtaining the current position of a rotor; 2) asynchronously dragging a motor on the basis of the current positi...
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WO/2024/076298A1 |
There is provided a system and a method of controlling two or more electrical fans, the system comprising, a first electrical fan having blades configured to rotate upon provision of electrical power; a second electrical fan having blade...
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WO/2024/068908A1 |
A synchronous machine (1) has a stator (3) and a rotor, wherein the rotor has a rotor winding (5), wherein a first power semiconductor (6) is provided for short circuiting the rotor winding (5), wherein the first power semiconductor (6) ...
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WO/2024/068870A1 |
A synchronous machine (1) has a starting resistor, wherein the starting resistor comprises an electrical conductor the specific electric resistance of which is different from that of copper, and wherein the starting resistor particularly...
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WO/2024/054320A1 |
A pulsed control of an Externally Excited Synchronous Machines (EESM), including a boost circuit and method for (1) harvesting the field energy stored in rotor winding when the EESM is transitioning to the off state following an on pulse...
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WO/2024/044109A1 |
A boost circuit and method is described for supplying a boost voltage to a rotor of the electric machine, just as the electric machine is pulsed on, the boost voltage aids the rotor in quickly overcoming its start-up inductance, rapidly ...
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WO/2024/041838A1 |
The invention relates to an assembly (1) of an electric motor (2) for propelling an aircraft and a control device (5), the electric motor (2) comprising a stator (21) and a rotor (22) and at least one cooling channel (CR) configured to b...
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WO/2024/039089A1 |
This electronic device may comprise: a first housing; a second housing which is arranged to be slid with respect to the first housing; a rollable display which has a display area reduced or expanded on the basis of a slide-in or slide-ou...
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WO/2024/032988A1 |
The invention relates to a method for generating thermal losses in a powertrain (2) that comprises a synchronous electric machine (3) comprising a stator and a wound rotor, the method comprising: - a step of acquiring a temperature in or...
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WO/2024/027871A1 |
A method of operating a direction-of-rotation sensorless electric motor comprising a stator and a rotor, injected signals being used to determine rotational speeds of the electric motor, is characterized in that the rotational direction ...
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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/2024/010894A1 |
The disclosure relates to a solar power system for induction motor soft-starting and power compensation. The system includes an induction motor, a solar microinverter, and a relay system electrically coupling the induction motor and the ...
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WO/2024/002248A1 |
The present invention relates to a solid-state motor starter, comprising three electronic switch modules. An input end of each electronic switch module is connected to one phase of an alternating-current power supply, and an output end t...
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WO/2023/240644A1 |
A method for controlling an electric motor (210), and a ship (200), a device and a storage medium. The method for controlling an electric motor (210) comprises: receiving a steering instruction and driving, according to the steering inst...
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WO/2023/236855A1 |
The present application relates to a control circuit for realizing power balance of a plurality of synchronous motors, and a control method therefor. The control circuit comprises a power frequency synchronous motor, n variable frequency...
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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/2023/222152A1 |
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/2023/202624A1 |
Embodiments of the present disclosure relate to a method and apparatus for operating a conduction assembly, a starting apparatus and a computer readable medium. The conduction assembly is coupled between an alternating-current power supp...
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WO/2023/192695A1 |
A motor drive system for use with a motor comprising a first high-side switch coupled to a high voltage bus and the motor. A first low-side switch coupled to the motor and a return, a turn ON and turn OFF of the first high-side switch an...
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WO/2023/182643A1 |
According to an embodiment, an electronic device may comprise: a first housing; a second housing slidably coupled to the first housing; and a flexible display disposed on one surface of the second housing. The electronic device may compr...
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WO/2023/164882A1 |
A tooth winding-based multi-pole multi-speed direct current stator, which consists of a stator iron core and armature windings, can form a motor together with components such as a rotor, an electrode, a supporting component, a housing, a...
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WO/2023/164871A1 |
A tooth winding few-pole multi-speed direct current stator, which consists of a stator core and an armature winding, can constitute a motor with components such as a rotor, electrodes, a support component, a motor casing and a control me...
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WO/2023/164278A1 |
A power tool including a housing, a trigger, a motor coupled to an output member, and a motor drive circuit coupled to the motor. The power tool further includes a motor controller coupled to the motor drive circuit. The motor control ci...
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WO/2023/151167A1 |
Provided are a current control method, a current control system, a boom control system, and a vehicle. The current control method comprises: obtaining an actual current value for controlling rotation of a boom; obtaining a target current...
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WO/2023/151744A1 |
The invention relates to a method for rotational speed build-up (10) of an encoderlessly operated electric motor (12), comprising a stator (14) and a rotor (16) that can be rotated at a rotational speed (n) relative to said stator by cha...
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WO/2023/151316A1 |
An electric pedal having a locking function, comprising an electric pedal body, an electric pedal motor connected to the electric pedal body, a four-connecting-rod mounting base (1) and a locking mechanism which are mounted on the electr...
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WO/2023/143754A1 |
The invention relates to a method for determining an advance control angle (W) of a synchronous motor (10), comprising the following method steps: actuating a winding system (14) of the synchronous motor (10) to set a defined operating p...
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WO/2023/143714A1 |
The invention relates to a method for determining a load angle (LW) of a synchronous motor (10; 110), having the following steps: actuating a winding system (14) of the synchronous motor (10; 110) in order to set a defined working point ...
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WO/2023/137257A1 |
An example converter for a switched reluctance (SR) generator (108) includes one or more gate driver circuits (112) that are not only used to synchronously control switches, such as insulated gate bipolar transistors (IGBTs) (Q7,Q8, Q9, ...
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WO/2023/118735A1 |
A smart converter (C) for a synchronous motor (M) comprising transistors (t1-t6) for converting DC current into AC current (i1-i3) on each phase line (P1-P3), one current sensor (IP1-IP3) per phase line and a smart control unit (U1) cont...
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WO/2023/100354A1 |
A component mounting machine 10 comprises: a housing 11; a plurality of exhaust fans 15e-15k that exhaust heat in the housing 11 to the outside; an AC/DC power source 81 that supplies power to each of the plurality of exhaust fans 15e-15...
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WO/2023/069131A9 |
Methods, systems, and mechanical and electromechanical arrangements for field-weakening of an electric machine that utilizes permanent magnets are disclosed herein. One rotor assembly for an electric motor includes a rotor body that move...
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WO/2023/087516A1 |
A fracturing apparatus and an activation method therefor, and a fracturing apparatus set. The fracturing apparatus (100) comprises a fracturing pump (110), an electric motor (120), and an activation device (130), wherein the fracturing p...
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WO/2023/072763A1 |
Device (45) for controlling an inverter/rectifier (9) of an electrical circuit of a hybrid or electric vehicle, the electrical circuit comprising: - a polyphase stator winding; - a battery (31); at least one electrical energy storage uni...
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WO/2023/073317A1 |
Method for automatically setting an angular position sensor One aspect of the invention relates to a method for automatically setting an angular position sensor (2) of a magnet rotor in relation to a stator of a synchronous machine, comp...
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WO/2023/055067A1 |
According to various embodiments, an electronic device may comprise: a first housing; a second housing which is slidably coupled to the first housing; a flexible display which is expanded or reduced on the basis of the slide-out or slide...
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WO/2023/046997A1 |
The invention relates to a DC motor (5) which comprises at least one switch (3) of a turning unit (4) which is adapted to switch the DC motor (5), wherein a circuit breaker (2) is mounted in series with the at least one switch (3) of the...
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WO/2023/038760A1 |
Methods, systems, and devices for electric machine torque adjustment based on waveform integer multiples are disclosed herein. One electric machine controller arranged to direct pulsed operation of an electric machine includes utilizing ...
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WO/2023/023807A1 |
An impact rotor (10a) for a material processing system (40) and capable of rotating about a rotation axis (12). The impact rotor (10a) has a base plate (14) and a first circular array (16a) of hollow impact bars (18) disposed about the r...
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WO/2023/027739A1 |
A system and method for controlling the operation of a vehicle radiator fan motor is provided. One embodiment receives one of a low-speed radiator fan control signal or a high-speed radiator fan control signal from an engine control modu...
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WO/2023/018333A1 |
As first aspect provides, in an electronic control circuit, a method of controlling an electromotor of an actuator for controlling a position of an actuatable object of a vehicle. The method comprises receiving an instruction to hold pos...
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WO/2023/283029A1 |
Methods and apparatus for open loop startup of a three-phase motor that reduces acoustic noise. During rotor alignment of the motor, there is a maximum level for a phase current to the motor. After the rotor alignment, open loop motor st...
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WO/2022/255715A1 |
Disclosed are: a gobo lighting apparatus which may be used for roadways or digital signage apparatuses; and manufacturing method thereof. The gobo lighting apparatus comprises: a light source module having an LED light source and a colli...
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WO/2022/252364A1 |
A cold-start circuit and an excavator, which are applied in the application in the technical field of electronic circuits, and can reduce the risk of engine start failure. The cold-start circuit comprises: a power supply, a drive circuit...
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WO/2022/242708A1 |
Provided are a motor starting method and a readable storage medium. A three-phase starting method comprising a rotor pre-positioning phase, an external synchronous open-loop acceleration phase, and an operation state switching phase is u...
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WO/2022/227515A1 |
Disclosed in the present invention is a soft switching control method for a parking actuator, comprising: obtaining a position of an output shaft of the parking actuator, performing difference calculation on said position and a target po...
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WO/2022/230073A1 |
The present invention provides a motor drive device comprising a means for restarting, with a simple configuration, a fan motor that is stuck due to dirt, and a method for controlling said motor drive device.　This motor drive device 10...
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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/2022/218736A1 |
A device for controlling an inverter/rectifier (20) able to be electrically connected to the stator electric winding (10) of a rotary electric machine (7) also comprising a rotor, especially for a vehicle, the device comprising: at least...
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