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Patent Searching and Data


Matches 1 - 50 out of 34,326

Document Document Title
WO/2021/002445A1
This power converter (10, 11) comprise: a dynamo electric machine (30) having armature windings (31 to 33); a first inverter (20) that connects a first end of the armature winding and a first storage battery (100); a second inverter (40)...  
WO/2020/219955A4
A motor assembly having an inverter with a plurality of transistor assemblies. Each of the transistor assemblies can include a surface mount MOSFET, a heat sink, and a solder material. The MOSFET has a plurality of blade terminals and a ...  
WO/2021/001966A1
An inverter device (1-1), provided with: an inverter circuit (3) for converting a DC voltage into an AC voltage; a phase current detection unit (5) for detecting the phase current of the inverter circuit (3); and an inverter control unit...  
WO/2020/259232A1
A magnetic bearing and a high-performance servo motor. The magnetic bearing comprises a housing, and is characterized by further comprising a fixed ring provided in the housing and a plurality of magnetic rollers provided circumferential...  
WO/2020/262269A1
According to the present invention, among control periods of an electric motor (M), which are formed of first to third periods, in the first period in which a peak of a first AC voltage (Vv) exists, a V-phase modulation wave (Vv*) accord...  
WO/2020/259104A1
The present application discloses a switch control device and method, a motor controller, and a battery pack heating control system, which relate to the field of battery power. The switch control device comprises: a processing module con...  
WO/2020/255988A1
This rotating electric machine control system 100 controls an AC rotating electric machine in which two N-phase coil sets (8) are disposed in the same stator core, the rotating electric machine control system being provided with: a first...  
WO/2020/256181A1
The present invention relates to a power conversion device, and a vehicle having same. A power conversion device and a vehicle having same according to an embodiment of the present invention comprise: a switching element; a gate driving ...  
WO/2020/255385A1
The present invention comprises: an inverter circuit (2) that converts a direct-current voltage output from a direct-current voltage power supply (1) into a sinusoidal pseudo alternating-current voltage, and outputs the voltage to a moto...  
WO/2020/250561A1
This three-phase AC motor drive device is provided with: a load; an inverter device 1 for driving the load; an MCOK_A_4 connected between the inverter device 1 and the load and electrically connecting or disconnecting the inverter device...  
WO/2020/251838A1
Apparatus and method for motor braking using selectively connectable resistance. The method includes controlling, using a motor controller of the power tool, a power switching network to drive a motor of the power tool in response to act...  
WO/2020/250483A1
This clutch engagement electric oil pump for an automobile transmission is provided with: a temperature sensor that measures the temperature of oil supplied to an oil supply destination relating to clutch engagement for the automobile tr...  
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/2020/250429A1
A power conversion device of one aspect of an embodiment comprises: a diode converter, an inverter, a smoothing capacitor, a resistor, a current sensor, an estimation unit, and a control unit. The diode converter rectifies the alternatin...  
WO/2020/246868A1
The present invention relates to the structure of an electronic control unit (ECU) in a brake system, in which an ECU board that constitutes redundancy is additionally arranged in a symmetrical or asymmetric structure and a plurality of ...  
WO/2020/244276A1
Provided in the present application is an electric motor control apparatus, comprising: a first drive module and a second drive module, which are used for driving different coils in a multi-phase coil of an electric motor respectively ac...  
WO/2020/246038A1
This motor drive device (100) comprises a converter circuit (3) that converts AC voltage outputted from an AC power supply (1) to DC voltage and outputs the resulting DC voltage to DC buses (16a, 16b), an inverter circuit (18) that conve...  
WO/2020/240686A1
A heat pump device (100) is provided with a compression mechanism (7) for compressing a refrigerant, a motor (8) for driving the compression mechanism (7), an inverter (9) for applying a voltage to the motor (8), and an inverter control ...  
WO/2020/241140A1
This electric work machine comprises an inverter circuit, a power-supply-side switching element, a power-supply-side resistor, at least one circuit-side resistor, and a fault assessment unit. The power-supply-side switching element is pr...  
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...  
WO/2020/239260A1
The invention relates to a drive system and to a method for operating a drive system, having - an inverter, - an electric motor, - a first series circuit - a main module having a first accumulator, in particular a first capacitor, wherei...  
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 ...  
WO/2020/236162A1
An example of an apparatus may include an input connection to receive a pulse-width-modulated signal. The pulse-width-modulated signal may control a speed of a fan. An output connection may provide a tachometer signal to indicate the spe...  
WO/2020/234943A1
According to the present invention, a DC bus power supply (4), which is a power supply device, supplies power to a load capable of switching a state thereof between a driving state in which the load is driven by receiving power and a sta...  
WO/2020/209517A3
The present invention relates to a high voltage inverter system and a method for synchronizing the size and phase of a high voltage inverter using same, and particularly to a high voltage inverter system which synchronizes the size and p...  
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...  
WO/2020/231512A1
A fast charging battery system and method for charging battery systems can be applied to most battery types in use for electric vehicles (EVs), electronic devices, and wireless electrical machines. The system could employ industry proven...  
WO/2020/225860A1
This heat pump device (100) is provided with: a compressor (1) that compresses a refrigerant; a motor (8) that drives the compressor (1); an inverter (9) that applies a desired voltage to the motor (8); and an inverter control unit (10) ...  
WO/2020/226156A1
The present invention provides a motor control device (40) for controlling the driving of a motor (10) having a coil (11), the motor control device (40) being provided with a drive circuit (41) and a control unit (50). The drive circuit ...  
WO/2020/226029A1
[Problem] To provide an inverter device with which it is possible to reduce a non-operating time by causing the internal temperature of an electrolytic capacitor to increase more rapidly, within a permissible range of ripple voltage. [So...  
WO/2020/225059A1
The invention relates to a method for measuring the dead time of circuit breakers in a motor output stage, wherein the motor output stage comprises at least one half bridge (14) having a high-side FET (12) and a low-side FET (13), wherei...  
WO/2020/222953A1
A motor control system for reducing or eliminating current ripple error during current sampling comprises a motor having a plurality of phase coils, a motor driver circuit having a plurality of switches coupled to the plurality of phase ...  
WO/2020/217626A1
The purpose of the present disclosure is to provide an electric tool capable of increasing the number of rotations of an electric motor. An electric tool (1) is provided with an AC motor (15) (electric motor), and a control unit (4). The...  
WO/2020/217853A1
An electric device is provided which can reduce risk of malfunction. This electric device is provided with a motor (32), an inverter circuit (30) which has switching elements (S1-S6) and which drives the motor (32), and a charge pump c...  
WO/2020/216548A1
The invention relates to an electric machine (10, 16) having a stator (4) and a rotor (14) which is arranged in a movable manner, wherein the stator (12) and/or the rotor (14) have/has an at least two-phase machine winding (26). The elec...  
WO/2020/219857A1
A motor drive system for an electrified vehicle includes a DC source, such as a battery, and an inverter, which includes one or more phase drivers, each configured to switch current from the DC source to generate AC power upon one or mor...  
WO/2020/217926A1
The present invention determines a failure phase of an AC current sensor without providing a DC current sensor. This control device controls a motor via an inverter circuit which supplies power converted from a direct current into a thre...  
WO/2020/217310A1
This electric motor control device includes: a power conversion device for supplying a three-phase voltage to two electric motors that are connected to each other in parallel; three-phase power lines for connecting one electric motor amo...  
WO/2020/217879A1
A machine learning device (10) is configured to carry out machine learning on the basis of a current command value and a current detection value detected by a current detection unit, or a voltage command value which are all included in t...  
WO/2020/219955A1
A motor assembly having an inverter with a plurality of transistor assemblies. Each of the transistor assemblies can include a surface mount MOSFET, a heat sink, and a solder material. The MOSFET has a plurality of blade terminals and a ...  
WO/2020/213285A1
[Problem] To provide a vehicle steering apparatus that makes it possible to easily attain a steering torque equivalent to a steering angle or the like independently of the state of a road surface and without being affected by changes in ...  
WO/2020/212058A1
The invention relates to a method for controlling a multi-phase electric machine (2), wherein: a stator (3) of the electric machine (2) comprises a first sub-system (4a) and a second sub-system (4b) having the same number of phases (Ph1a...  
WO/2020/213045A1
The purpose of the present invention is to obtain an inverter device that can increase the accuracy with which the current of a DC bus is detected, and suppress phase current ripple. An inverter control unit (7) included in this inverter...  
WO/2020/213124A1
This control device for a dynamo-electric machine controls, for individual phase windings of the dynamo-electric machine, the current used to electrify the phase windings by controlling an inverter that applies voltage to the phase windi...  
WO/2020/213664A1
Provided is a motor control device capable of high-precision speed control of an opening/closing body. A PWM control unit 58 has a two-phase complementary PWM control unit and performs PWM control of three-phase upper and lower switching...  
WO/2020/208980A1
A motor drive device, provided with: an inverter circuit for generating AC power to be fed to a servo motor; a positive-side electrical power line and a negative-side electrical power line for feeding DC electrical power from a DC power ...  
WO/2020/208829A1
The purpose of the present invention is to provide a power conversion device capable of suppressing the increase of current flowing through an electric motor even if a voltage command exceeds the amplitude of a carrier wave. In order t...  
WO/2020/206004A1
The system determines that a multiphase electric motor is in a low-speed operating range, near stall. The system determines a duty cycle for each phase of the multiphase electric motor. The duty cycle includes a nominal component and a z...  
WO/2020/202655A1
A drive device for a permanent-magnet synchronous machine has a power converter 102 that drives a permanent-magnet synchronous machine 103, and a controller 101 that controls the power converter 102. The controller 101 comprises: a torqu...  
WO/2020/196310A1
This electric motor system (2) is provided with: a drive shaft (30) rotatable about the axial center; a first electric motor (60) and a second electric motor (70) each rotationally driving the drive shaft (30); a first inverter (91) for ...  

Matches 1 - 50 out of 34,326