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Patent Searching and Data


Matches 301 - 350 out of 20,095

Document Document Title
WO/2014/148731A1
Disclosed therein is a method of operating a variable magnetic flux motor. The method of operating the variable magnetic flux motor, which includes a rotor and a stator located inside the rotor, the rotor including first magnets and seco...  
WO/2014/149355A3
A load commutated inverter (LCI) drive system for a synchronous electrical machine is provided. The system may include a first supply bridge and a second supply bridge, each of which may include an alternating current to direct current (...  
WO/2014/138757A1
Method for identifying pole slip of an electrical generator (2), in particular synchronous generator, which is electrically connected to a power supply system (1), wherein a rotor (3) of the generator (2) is mechanically connected to a m...  
WO/2014/133750A1
A ground fault protection system (216) is disclosed. The ground fault protection system may include a controller (306) that is configured to receive signals representing a ground fault detection voltage and a DC link voltage of a machine...  
WO/2014/130201A1
An electric motor controller is configured to be coupled to an electric motor. The controller is also configured to control the electric motor to produce torque when direct current (DC) link voltage has a 100% voltage ripple, or when dir...  
WO/2014/128829A1
A vehicular electric motor control device (100) is a vehicular electric motor control device that controls electric motors(MG1, MG2) capable of providing a plurality of characteristics with different torque output upper limits. The vehic...  
WO/2014/128401A3
An electrical architecture (1) for converting DC voltage into AC voltage, and vice versa, comprising: -a DC/AC voltage converter (2), comprising a plurality of arms mounted in parallel, each arm comprising two controllable switching cell...  
WO/2014/128437A2
A method of monitoring an electric motor circuit of the kind comprising an electric motor having a plurality of phases delta configuration, a plurality of electrical switches arranged in a bridge, operable in response to signals from a c...  
WO/2014/128437A3
A method of monitoring an electric motor circuit of the kind comprising an electric motor having a plurality of phases delta configuration, a plurality of electrical switches arranged in a bridge, operable in response to signals from a c...  
WO/2014/126295A1
The present invention relates to a network-based motor control system-on-chip (SoC) and a motor control method. The network-based motor control system related to an example of the present invention includes a network unit; a first proces...  
WO/2014/125604A1
A motor drive circuit comprises: a CPU for controlling the operation of a bridge circuit by controlling the control voltage output from a pre-driver; a voltage detection circuit for detecting the voltage of a battery on the basis of the ...  
WO/2014/118942A1
When a bus bar current detected by a bus bar current detector (11) exceeds a current cutoff value, an overcurrent detector (12) outputs an open signal for turning off switching elements (5 - 10) to a gate driver (14) to cut off the energ...  
WO/2014/115382A1
This motor control device (19) supplies a detection current to a motor (9) at a prescribed time period, detects the voltage between both ends of a smoothing capacitor (13) when the detection current is supplied, and determines from the c...  
WO/2014/115626A1
This induction motor control device, which sets a motor torque command value on the basis of vehicle information and controls an induction motor connected to the drive wheels, calculates a first torque current command value and a first e...  
WO/2014/112178A1
In order to obtain a motor control apparatus for achieving high speed and good response characteristics, the motor control apparatus is provided with: a speed model (21) for calculating the change component of a first state variable (ξ)...  
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...  

Matches 301 - 350 out of 20,095