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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...
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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/2020/239260A1 |
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...
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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/2020/236162A1 |
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...
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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...
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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/2020/231512A1 |
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...
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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) ...
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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 ...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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 ...
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WO/2020/196472A1 |
The present invention is provided with: a power conversion apparatus (10); and a control apparatus (40) that controls the voltage supplied to a motor by the power conversion apparatus. The d-axis inductance in the motor (30) is defined a...
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WO/2020/196380A1 |
A shaft (10) is rotatably supported only on one side in the axial direction with respect to a rotor core (40). The rotor core (40) has a magnetic saturation facilitation means (50). With each magnetic pole (43) divided with respect to th...
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WO/2020/194753A1 |
This motor drive device (2) is provided with: an inverter (11) equipped with switching elements (51-54) and converting the DC power supplied from a battery (10) to an AC power to supply the AC power to a single phase motor (12); a first ...
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WO/2020/195344A1 |
The purpose of the present invention is to provide a power conversion device, a drive device, and a power steering device with a novel structure having good heat dissipation efficiency for a plurality of elements having different heat qu...
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WO/2020/195677A1 |
Provided is a servo DC power supply system which can suppress voltage oscillation in a power supply path. Each motor control device of the servo DC power supply system employs a device comprising a current control loop unit that controls...
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WO/2020/194623A1 |
This motor drive control device (100) is provided with: an inverter circuit (2) composed of switching elements that control conduction to a motor (1); a gate drive circuit (15) that drives the switching elements on the basis of a driving...
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WO/2020/196397A1 |
A motor control device 100-1 comprises: an inverter 23; a current detector 24; a current detection unit 27; a duty cycle setting unit 31 for setting duty cycles for a first PWM signal, a second PWM signal, and a third PWM signal on the b...
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WO/2020/196398A1 |
This motor control device 100-1 comprises an inverter, a current detector, a current detection unit, and a PWM signal generation unit. The PWM signal generation unit: extracts part of a zero vector section in each of a first PWM signal, ...
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WO/2020/194755A1 |
This motor drive device (1) has: an inverter circuit (3) for driving a motor (2); an inverter control device (4) for controlling the inverter circuit (3); a gate drive power supply (5) for supplying a power supply for driving the inverte...
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WO/2020/194754A1 |
This motor drive device (2) comprises: an inverter (11) in which a leg (5A) to which switching elements (51, 52) are connected in series and a leg (5B) to which switching elements (53, 54) are connected in series are connected in paralle...
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WO/2020/195797A1 |
This control device is for controlling the operation of an electric motor configured so that a rotational shaft thereof can be rotated by an external force. The control device is characterized in that: when it is detected that a voltage ...
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WO/2020/196390A1 |
When an energization time equal to or above a threshold value is present in one of an upcount period or a downcount period of a carrier, and an energization time below the threshold value is present in the other of the upcount period or ...
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WO/2020/196719A1 |
A rotating electrical machine control system (100) for controlling an alternating current rotating electrical machine (80) provided with M coil sets (8) is provided with: M inverters (50) which are provided with a plurality of switching ...
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WO/2020/188886A1 |
This power conversion device is provided with a main circuit unit, a control unit (12), a current sensor, and a half-wave rectifier. The control unit (12) is provided with current frequency calculation units (42, 51) and monitoring units...
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WO/2020/189438A1 |
A controller of this motor control device comprises an integral calculation unit 606A (608A) that calculates a d(q)-axis integral value Id **(Iq **) through the integral control of a d(q)-axis current deviation ΔId(ΔIq), and is configu...
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WO/2020/188884A1 |
This electric motor control apparatus has an AC power supply, a converter, an inverter, an electric motor, and a control unit. The AC power supply supplies AC power. The converter converts AC power supplied by the AC power supply into DC...
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WO/2020/189861A1 |
An inverter control device and method are disclosed. A method of one embodiment of the present invention estimates a rotating speed of a motor, determines a slip frequency command by using direct current end capacitor energy and a direct...
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WO/2020/188693A1 |
This power converter comprises a main circuit unit, a control unit (12), a current sensor, and a half-wave rectification unit. The control unit (12) comprises current frequency calculation units (42, 51), and monitoring units (43, 52). T...
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WO/2020/188880A1 |
The present invention improves the operation performance of an electric motor drive system for driving a load via a gear by outputting an appropriate torque in a backlash zone. This backlash control device of an electric motor drive syst...
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