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Patent Searching and Data


Matches 251 - 300 out of 20,095

Document Document Title
WO/2015/004885A1
A control device for a motor according to the present invention comprises a position detector (107), a feed-forward controller (101), a predistorter (102), a feedback controller (103), a vibration suppression controller (104), a torque c...  
WO/2015/002122A1
In this system, an acceleration region (SU) and a deceleration region (SD) are provided between the operation start position and the operation end position of a wiper arm (1), and in the acceleration region/deceleration region, the targe...  
WO/2015/000930A1
The invention relates to a method for actuating a multiphase frequency converter for actuating an electric machine 8, said electric machine 8 being suitable as a traction drive of a vehicle. The frequency converter comprises power switch...  
WO/2014/209741A1
A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system i...  
WO/2014/207242A1
A circuit board (36) having a temperature sensor arranged thereon for producing a temperature signal is associated with an electronically commutated motor (32), and a first assembly for continuously determining the service life of the mo...  
WO/2014/202908A1
Eddy current retarder equipment (1) able to be carried on board a vehicle, comprising: a stator assembly (2), comprising inductor windings (23) forming a circuit (4), a rotor assembly (3) designed to be mounted on a transmission shaft of...  
WO/2014/203097A1
A method of controlling a motor drive having a normal mode wherein a DC link voltage is charged using an AC (e.g. mains) power supply and an emergency mode wherein the DC link voltage is charged using a DC supply (e.g. from a battery) is...  
WO/2014/203429A1
This motor selection device retrieves the following, which are stored in a storage means: the maximum output torque (T), the dynamic friction torque (Ti), the constant load torque (Tm), the acceleration interval (ta), the constant speed ...  
WO/2014/202370A1
The invention relates to a method for recognising a wire-break fault during operation of a brushless DC motor (2). A switch-on delay duration (td_ONx) of a transition of an electrical phase potential (SHx) that rests on the stator windin...  
WO/2014/203430A1
This method for selecting an optimal movement pattern selects a plurality of selectable motors and suggests an optimal movement pattern from among the motor movement patterns defined by the position-determining interval during which the ...  
WO/2014/198461A3
A control unit for an electric motor comprises a protective circuit for limiting current or for polarity-reversal protection, the protective circuit comprising a field effect transistor having a gate. The protective circuit further compr...  
WO/2014/199142A1
A method of controlling a brushless motor. The method comprising measuring a temperature of the motor, adjusting a control value in the event that the measured temperature is lower than a threshold, and exciting a winding of the motor. T...  
WO/2014/198374A1
The invention relates to a method and a device for operating a closed-loop or open-loop speed-controlled electric motor (EM) of a fan drive, which motor is connected to an on-board system voltage (UB) of a motor vehicle and the motor spe...  
WO/2014/199994A1
When a feed forward table is used to suppress a torque pulsation of a device which has a battery as a main power source, the internal resistance of the battery causes a voltage fluctuation in accordance with a load power, thereby generat...  
WO/2014/199143A1
A method of controlling a brushless motor. The method comprises storing a power lookup table that comprises a control value for each of a plurality of voltages or speeds, measuring the magnitude of a supply voltage or the speed of the mo...  
WO/2014/198461A2
A control unit for an electric motor comprises a protective circuit for limiting current or for polarity-reversal protection, the protective circuit comprising a field effect transistor having a gate. The protective circuit further compr...  
WO/2014/198374A9
The invention relates to a method and a device for operating a closed-loop or open-loop speed-controlled electric motor (EM) of a fan drive, which motor is connected to an on-board system voltage (UB) of a motor vehicle and the motor spe...  
WO/2014/195706A1
A motor control circuit for an electric motor of an electric power assisted steering system comprises a switching circuit comprising a plurality of electrical switches, a current demand signal generator which converts the torque demand s...  
WO/2014/194104A1
A system that improves on known systems for reducing output torque by a motor in the event of a jam may include an electromechanical actuator (EMA), a motor configured to drive the EMA and a controller. The controller may be coupled to t...  
WO/2014/185123A1
The purpose of the present invention is to provide a motor control device for controlling a motor drive device which employs a regeneration resistance scheme, said motor control device allowing for accurate measurement of power consumpti...  
WO/2014/185489A1
This drive apparatus is provided with: a motor having a drive part that rotates a first shaft member; a transmission part that transmits the rotation of the first shaft member to a second shaft member that is different than the first sha...  
WO/2014/185292A1
Provided is an electric linear actuator with low power consumption. Said electric linear actuator has an electric motor (10), a motion conversion mechanism (11) that converts rotational torque from said electric motor (10) to linear forc...  
WO/2014/184833A1
Provided is a resolver malfunction detection method that can promptly detect malfunctions without requiring complex computations, an angle detection device, a motor, and a transport device. A circuit is provided that supplies a sinusoida...  
WO/2014/185040A1
An electrically raisable/lowerable storage device provided with a storage shelf (2) to be raised and lowered between an upper-limit position and a lower-limit position, a raising/lowering unit (3) for raising and lowering the storage she...  
WO/2014/180636A3
The invention relates to a circuit arrangement (1) for operating an electric machine (2, 2a), which has a plurality of lines (U, V, W), each for one phase of an alternating current to the electric machine, each line (U, V, W) having a pl...  
WO/2014/180737A3
The invention relates to a motor (1) for driving a pump (2), in particular a coolant pump, - having an electromagnet (3) for generating a first magnetic field by means of an electric current flowing through the electromagnet (3), - havin...  
WO/2014/181109A1
A method of controlling a motor of an electric power assisted steering system, the motor (14) having a plurality of phases (21), the method comprising taking as an input an input signal (12) indicative of a desired assistance torque and ...  
WO/2014/177802A1
Method and corresponding system for verifying the operation of a motor propulsion plant fitted to an automotive vehicle with electric or hybrid traction, the motor propulsion plant comprising an electric motor furnished with a permanent-...  
WO/2014/178331A1
The purpose of the present invention is to facilitate determining a load rate without an extra burden of managing a rated value for a motor driven by a drive device while reliably avoiding error in selecting the rated value. Provided is ...  
WO/2014/177907A1
An electronic device (410) is for controlling motor drive circuits for driving a multi-phase motor (460) in a force assisted system. Each motor drive circuit (420,420',420") selectively permitting current to flow into or out of a respect...  
WO/2014/178255A1
Provided is a controller capable of flexibly handling addition, modification and deletion of data to be read out or updated, and enabling an operator to intuitively designate the data desired for read out or update without imposing extra...  
WO/2014/173792A2
The invention relates to a method for operating a three-phase brushless DC motor (2) with a pulse-width modulation controlled electronic commutation in the event of a malfunction. A maximum number (n) of commutation steps, a direction of...  
WO/2014/174682A1
A magnet temperature estimation device for a permanent magnet motor comprises: a voltage detection unit (1) for detecting a voltage when a winding is energized; a high-order component detection unit (2) for detecting a high-order compone...  
WO/2014/173411A1
The invention relates to a method for monitoring drive engines, particularly for aircraft or the like, particularly in the start-up phase, wherein a detection of abnormal start-up behaviour, particularly elevated torque, is provided, or ...  
WO/2014/173792A3
The invention relates to a method for operating a three-phase brushless DC motor (2) with a pulse-width modulation controlled electronic commutation in the event of a malfunction. A maximum number (n) of commutation steps, a direction of...  
WO/2014/175628A1
The present invention relates to a servo motor controller for controlling a servo motor having a current limiting unit, and a non-tuning nonlinear control method therefor. According to the present invention, the servo motor controller co...  
WO/2014/173411A4
The invention relates to a method for monitoring drive engines, particularly for aircraft or the like, particularly in the start-up phase, wherein a detection of abnormal start-up behaviour, particularly elevated torque, is provided, or ...  
WO/2014/171191A1
The purpose of the present invention is to provide a motor control device capable of adjusting a gain parameter for pressure control, which can improve the control performance of the motor control device while ensuring a stable control s...  
WO/2014/167852A1
This motor drive device (30) is provided with an operation pattern generating unit (1), a position and speed control unit (23), a load characteristic compensation unit (24) and a load characteristic measurement unit (7). For each operati...  
WO/2014/168055A1
The present invention provides a technical means for improving the precision of tuning through which the parameters of an electric motor are adjusted to optimal values, the parameters being set in an electric motor drive apparatus. A con...  
WO/2014/167851A1
This motor drive device (2) is provided with a command response setting unit (22), a position and speed control unit (23), a load characteristic compensation unit (24), a servo adjustment unit (6), a command response setting function (22...  
WO/2014/167808A1
A motor drive device according to the present invention drives a motor while carrying out feedback control so that an actual operation follows a command. The motor drive device comprises: a feedback control unit for carrying out feedback...  
WO/2014/167690A1
A cooling control device and cooling control method for an electric-vehicle motor whereby damage to said motor can be reduced without making the user feel as though something is wrong are obtained. A vehicle control unit has the followin...  
WO/2014/159157A1
A system and method for monitoring and controlling the amount of electrical current provided to a motor used to actuate a field device within a control system.  
WO/2014/156164A1
The motor drive device according to the present invention is provided with a basic servo-control function and an automatic-adjustment function. The servo-adjustment method according to the present invention is for such a motor drive devi...  
WO/2014/154290A1
The present disclosure relates to a method for controlling a chain-link converter, said converter comprising three phase legs, each of which phase legs comprising a plurality of series-connected converter cells, each of which cells compr...  
WO/2014/155112A1
A drive system for a brushless DC motor having a rotor including at least one permanent magnet and a stator including at least one phase winding, the system comprising a drive circuit including switch means associated with the winding fo...  
WO/2014/158379A3
A motor driver includes at least two terminals suitable for being coupled to a motor controller and to receive a motor command signal and transmit a motor status signal when the motor driver is controlling a motor. A serial data communic...  
WO/2014/157508A1
[Problem] To provide an electric-powered vehicle that enables a pedaling feeling similar to that in a vehicle in which a pedal rotation mechanism and a driving wheel are mechanically connected to be obtained. [Solution] A vehicle in whic...  
WO/2014/147757A1
A motor drive system according to an embodiment of the present invention is provided with a motor having a strain area in which mechanical strain occurs due to excitation current, a motor controller for controlling driving of the motor, ...  

Matches 251 - 300 out of 20,095