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Patent Searching and Data


Matches 251 - 300 out of 19,538

Document Document Title
WO/2014/109057A1
An energy assist system selection support device for supporting the selection of an energy assist system that includes a step-up and step-down chopper unit, an electricity storage unit, and a motor and drives a machine, the energy assist...  
WO/2014/103693A1
A motor torque command value is inputted into a filter with a characteristic Gm(s)/Gp(s), which is composed of a model Gp(s) of transmission characteristics from the torque input to the vehicle to the motor speed output and of an ideal m...  
WO/2014/103601A1
A motor control device having a lock mechanism (11) for locking the rotation of a wheel, and a motor, comprises: a detection means for detecting the release of the lock mechanism (11); a damping control means for controlling torsion vibr...  
WO/2014/105737A1
An electronic overload relay includes a microcontroller having an internal random-access memory (RAM) in which a motor thermal model is stored. The microcontroller is coupled to a power supply having a bulk storage capacitor. In response...  
WO/2014/098008A1
[Problem] To reduce the weight and size of the tooth skipping detection structure of a speed reducer in a rotational drive device. [Solution] A rotational drive device detects the occurrence of tooth skipping of the speed reducer on the ...  
WO/2014/098218A1
The purpose of the present invention is to reduce the weight and size of the tooth skipping detection structure of a speed reducer in a rotational drive device. The rotational drive device detects the occurrence of tooth skipping of the ...  
WO/2014/097959A1
[Problem] To suppress a decline in the control accuracy of an applied voltage associated with an increase in quantum noise, and increase the control accuracy of a motor speed. [Solution] When forming a drive voltage signal supplied to a ...  
WO/2014/098217A1
When forming a drive voltage signal supplied to a motor from a drive command signal, a motor drive voltage control device reduces the gradation level and performs noise-shaping modulation before performing PWM modulation. Reducing the gr...  
WO/2014/091152A2
The invention relates to a mechatronic assembly for positioning a member including a control unit and an actuator, the control unit including a control algorithm and a power bridge, said algorithm controlling said power bridge, the power...  
WO/2014/091152A3
The invention relates to a mechatronic assembly for positioning a member including a control unit and an actuator, the control unit including a control algorithm and a power bridge, said algorithm controlling said power bridge, the power...  
WO/2014/087813A1
Provided is an electric linear actuator having superior responsiveness and that is such that it is difficult for overshooting to arise. The electric linear actuator has: an electric motor (15); a linear motion member (A) provided in a ma...  
WO/2014/085888A2
The present invention relates to a circuit and device for protecting bivolt motors, preferably for induction motors used in refrigerator hermetic compressors. Provision is also made for an induction motor and a control and protection sys...  
WO/2014/085888A3
The present invention relates to a circuit and device for protecting bivolt motors, preferably for induction motors used in refrigerator hermetic compressors. Provision is also made for an induction motor and a control and protection sys...  
WO/2014/083963A1
In order to provide a motor capable of detecting the temperature of a magnet (21) embedded in a rotor (20), the motor comprises: a stator (25) having a coil (24); a case (22) for fixing the stator (25); a rotor (20) supported by the case...  
WO/2014/084009A1
Provided is a control device capable of operating a PMSM with high efficiency and capable of adjusting output torque at high accuracy even when the PMSM operates at a low rotational angular speed. When rotational angular speed (ω) is a ...  
WO/2014/083946A1
[Problem] To provide an electromagnetic rotating device and a vacuum pump equipped with the electromagnetic rotating device whereby it is possible to reduce the size and costs by consuming power during regeneration through an electromagn...  
WO/2014/082766A2
The invention relation to a device for increasing fault clearing time, with load resistors (14, 18, 21) connectable in the event of a fault, the turbine power transmitted to the shaft being electrically absorbed by the generator (5) and ...  
WO/2014/082766A3
The invention relation to a device for increasing fault clearing time, with load resistors (14, 18, 21) connectable in the event of a fault, the turbine power transmitted to the shaft being electrically absorbed by the generator (5) and ...  
WO/2014/080456A1
The purpose of the present invention is to provide a motor drive system which has excellent environmental resistance performance and can be configured at low costs, and a motor control device used for the motor drive system. The motor dr...  
WO/2014/079453A3
A method is provided for reducing an impact of an unbalanced short circuit event that occurs in a polyphase permanent magnet generator of a wind turbine. According to the method, an unbalanced short circuit event is detected in the gener...  
WO/2014/076787A1
This variable speed apparatus for driving an electric motor is provided with: a first acquiring unit, which acquires a first parameter relating to an operation state of the electric motor; a second acquiring unit, which acquires a second...  
WO/2014/072409A2
The invention relates to a system with a first electric motor (12) and a second electric motor (14) which are mechanically coupled to each other via a common line section (17) of the system. The line section (17) exhibits a natural torsi...  
WO/2014/073365A1
Provided is a control device for an electric compressor capable of suitably controlling a motor in response to load variations having a complex frequency component even when controlling a motor using a sensorless system. The control devi...  
WO/2014/072409A3
The invention relates to a system with a first electric motor (12) and a second electric motor (14) which are mechanically coupled to each other via a common line section (17) of the system. The line section (17) exhibits a natural torsi...  
WO/2014/067806A3
The invention relates to a method for operating an electronically commutated electric machine (2), having the following steps: Activating a driver circuit (3) in accordance with a commutation schema by switching power semiconductor switc...  
WO/2014/069281A1
This control device controls an electric vehicle driven by a drive motor unit (6) configured from an electric motor (4) and a mechanical unit (5), and is provided with: an equivalent efficiency estimation means (15) which estimates an eq...  
WO/2014/063926A3
A tracking circuit and method are disclosed for tracking an orientation of a rotor of a motor, such as a three-phase sensorless, synchronous, sine wave permanent-magnet motor, during a loss of source power to a motor drive. The circuit c...  
WO/2014/064836A1
A computation circuit different from a CPU is configured to perform a prescribed computation for consolidating information sampled during one cycle of a carrier frequency by variably controlling a sampling cycle for information in accord...  
WO/2014/057533A1
[Problem] To more accurately detect the overload state of a motor while achieving maximum motor performance. [Solution] A serial converter (3) has: an overload determination unit (35) for comparing, against a threshold, the detection val...  
WO/2014/057558A1
In order to accurately estimate the temperature of a permanent magnet used in the rotor of a motor, a motor control device of a vehicle provided with a motor as a power source includes: an estimation mode setting unit that makes an elect...  
WO/2014/056799A3
The invention relates to a motor control system and a method for the field-oriented control of an electric motor for driving a vehicle. The motor control system comprises a current setpoint creator (1), which is designed to receive a tor...  
WO/2014/055639A1
An active suspension system for a sprung mass. The suspension system has an electromagnetic motor that produces force on the sprung mass and that is powered by power from a power source. The motor has an armature, and a stator with coils...  
WO/2014/054142A1
[Problem] To easily execute selection processing of motor equipment in a multi-axis drive system provided with a plurality of mechanisms to be driven. [Solution] An equipment selection device for selecting motor equipment displays an ope...  
WO/2014/050854A1
Provided is a device capable of reducing power consumption. An actuator drive device (30) includes a DC voltage generation unit (31), a voltage detection unit (34), a drive voltage generation unit (37), and a switching unit (35). The DC ...  
WO/2014/050404A1
A motor control device (1) comprises: a communication unit (11) which receives a control command including a motor type identification signal representing the type of a motor (2) to be controlled and a signal designating the target rotat...  
WO/2014/045705A1
An audio signal which is outputted from a sound source circuit (14) is passed through a coil (16) within a transducer which oscillates a sound board, and a sound signal is emitted by the oscillation of the sound board. A microcomputer (3...  
WO/2014/041720A1
This motor control device (110), which controls a motor (105) that drives a fan (104), is equipped with: an air volume calculation unit (113) that calculates the air volume (Q) supplied by a fan (104); and a torque command generation uni...  
WO/2014/032718A1
The invention relates to a switchgear (1) which comprises a control unit (2), a supply connection (7) and a first current path (15), the first current path (15) comprising a first electromechanical switch (11) and, connected in series to...  
WO/2014/033201A2
A variable speed drive system employing an electric motor and a frequency converter arranged between an AC power source and the electric motor is operated. The frequency converter functions to convert AC power obtained from the AC power ...  
WO/2014/033201A3
A variable speed drive system employing an electric motor and a frequency converter arranged between an AC power source and the electric motor is operated. The frequency converter functions to convert AC power obtained from the AC power ...  
WO/2014/024360A8
Provided are a motor control device and a motor control method with which control can be implemented to accurately achieve a constant air quantity without relying upon pressure loss conditions and electrostatic pressure variation, while ...  
WO/2014/024359A1
Provided is a motor control device, a motor control method, and an air-blowing device with which control can be implemented to achieve a constant air quantity without relying upon pressure loss conditions and electrostatic pressure varia...  
WO/2014/023888A2
System for controlling the electromagnetic torque of an electric machine in particular for motor vehicle. System for control (1) of the electromagnetic torque of a permanent-magnet three-phase electric machine (10), comprising means (2) ...  
WO/2014/024360A1
Provided are a motor control device and a motor control method with which control can be implemented to accurately achieve a constant air quantity without relying upon pressure loss conditions and electrostatic pressure variation, while ...  
WO/2014/019882A1
The present invention relates to a method for detecting a fault in an electrical machine, in particular a synchronous motor, and to a motor control unit for controlling an electrical machine. In addition, the invention relates to a motor...  
WO/2014/017487A1
A main control circuit (11) for driving a motor is configured so as to have: a Pch FET (T11), which is provided in series with a diode (D1), and the source (S) of which is connected to a secondary-side contact (MC2) of a main contactor (...  
WO/2014/017019A1
A method for determining irregularity in an industrial machine driven using a motor. An irregularity is determined to be occurring in the industrial machine when the current difference between the motor current command value and the moto...  
WO/2014/017444A1
An audio signal that is output from an audio source circuit (14) is passed to a coil (16) in a transducer that vibrates a soundboard, and thereby generates an audio signal by vibration of the soundboard. A microcomputer (30) inputs the a...  
WO/2014/016767A1
An electric motor (1) with onboard inverter, comprising a motor body (2) which is associated with at least one output shaft (3) and supports an inverter (4) for adjusting the speed of the output shaft (3); the electric motor (1) comprise...  
WO/2014/017146A1
Provided is a technology of detecting not only a main direct current voltage, but also a sub-direct current voltage, thereby contributing to protection of a main rectifying circuit and a sub-rectifying circuit. A main power supply circui...  

Matches 251 - 300 out of 19,538