Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 26,269

Document Document Title
WO/2021/083590A1
The invention relates to a method for calibrating the control of an electrical machine, comprising the steps of: applying at least one electrical test signal having a specified direction in a d-q coordinate system to the electrical machi...  
WO/2021/079577A1
[Problem] To increase the torque of a permanent magnet type motor. [Solution] Provided is a permanent magnet type motor having a concentrated winding, the motor being configured to output a large torque, wherein: a circumferential-dire...  
WO/2021/074094A1
The invention relates to a method for operating a brushless and sensorless multi-phase electric motor (4), wherein at least two phase voltages (UU, UV, UW) and at least two phase currents (IU, IV, IW) of the electric motor (4) are determ...  
WO/2021/073934A1
A method for Controlling a drive System (1) including a synchronous motor (3) having several phases comprises the steps: providing appropriate operating Parameters for the synchronous motor (3) by processing input of the drive System (1)...  
WO/2021/068241A1
The present invention relates to a brushless direct current motor Hall sensor fault-tolerant control device and a control method therefor, comprising a Hall sensor unit, a brushless direct current motor three-phase stator winding, an inv...  
WO/2021/068446A1
A brushless direct-current electric motor system control method based on a hybrid energy storage unit. The method comprises: constructing a hybrid energy storage unit, wherein an output of the hybrid energy storage unit is connected to a...  
WO/2021/069479A1
A motor system comprises a motor comprising: a stator with a plurality of subwindings each having a plurality of phase connections for receiving phase voltages, wherein each of the subwindings is electrically insulated from each of the o...  
WO/2021/069895A1
There is described a method of controlling an inverter supplying power to a permanent magnet AC, PMAC, motor having a plurality of phase windings, The method comprises: selecting a first phase winding of the PMAC motor; electrically conn...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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 ...  
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...  
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-...  
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...  
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 ...  
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...  
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...  
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...  
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) ...  
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...  
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 ...  
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 ...  
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...  
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...  
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 (...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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 ...  
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...  
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...  
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...  
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...  

Matches 1 - 50 out of 26,269