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WO/2008/045624 |
A DC motor mechanical shock protection system monitors the motor current to determine the torque the motor is applying to the gearbox, and takes mitigating action if the torque approaches a level that can damage the driven device and/or ...
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WO/2008/041395 |
An algorithm for increasing a powering torque outputted when a target torque To is outputted in the same direction as the operating direction as the controlled variable X of an operating lever (2) increases and for decreasing the powerin...
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WO/2008/035176 |
A system for sensing short circuits and open circuits prior to operation of a motor (i.e., while the motor is in a static state), thereby sparing the electrical system from destructive effects of these electrical problems. In addition, t...
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WO/2008/032542 |
A motor control device, in which the temperature of a heat source generating heat when the motor control device is driven can be moderated, and of which the size can be miniaturized and the cost can be lowered. In the motor control devic...
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WO/2008/029636 |
To provide a motor control device the size of and the cost for which can be easily reduced by miniaturizing a heat sink without increasing the number of parts. The motor control device comprises a heat sink, power semiconductor modules f...
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WO/2008/029524 |
A slip ratio estimating device for measuring the slip ratio without using the speed of a vehicle body and a slip ratio control device using the slip ratio estimating device are provided. A motor torque measured by a torque measurer is in...
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WO/2008/029638 |
An inexpensive motor controller having high cooling performance obtained by using an extrusion heat sink (1) and reducing the number of components and the assembling man-hours. In the motor controller comprising the extrusion heat sink (...
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WO/2008/029637 |
To provide a small-sized motor control device at a low cost by realizing miniaturization of a heat sink used for the motor control device and reduction of the number of all the parts of the device. The motor control device comprises a he...
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WO/2008/020640 |
The present invention may be applied to a drive device, a travel device, and a drive device control method which can be appropriately used, for example, for a robot arm and a twin cycle. By eliminating (reducing) the use of changes excee...
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WO/2008/017211 |
A surface motor direct-drive sucker-rod screw pump device is driven by a vertical three-phase permanent magnet brush-less DC motor, and comprises a motor controller (6), a rectifying circuit, an inversion circuit, a CPU and a driving cir...
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WO/2008/007120 |
An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A s...
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WO/2008/007120 |
An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A s...
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WO/2008/002344 |
An electric drivetrain (10) for a mobile machine (18) is disclosed. The electric drivetrain has at least one power consuming device (36-40), a sensor (54-58) associated with the at least one power consuming device, and a controller (62) ...
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WO/2007/144431 |
The invention is concerned with converters (inverters, pulse or frequency converters) and with the driving of “magnetically active” operating means. An effective switching frequency of the converter should not be reduced, but neverth...
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WO/2007/138758 |
A servo controller realizing robust speed control of high performance by avoiding adverse influence such as of disturbance or load fluctuation. The servo controller comprises a disturbance observer (5) which adds a disturbance compensati...
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WO/2007/136828 |
The present invention is a novel device, system, and method for simultaneous selection of filters and loop proportional gain for a closed loop system. According to an exemplary embodiment of the present invention, a method provides an au...
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WO/2007/136828 |
The present invention is a novel device, system, and method for simultaneous selection of filters and loop proportional gain for a closed loop system. According to an exemplary embodiment of the present invention, a method provides an au...
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WO/2007/125743 |
When a motor temperature (T) exceeds a threshold value, a torque control unit (204) reduces a torque control value for a motor generator. A torque limitation control unit (202) determines from torque control value (TR) and vehicular spee...
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WO/2007/126024 |
Provided is a servo motor control device capable of improving current control loop response and preventing vibration of a servo motor. The servo motor control device includes: current detection means for detecting an output current value...
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WO/2007/121889 |
The invention relates to a control system for a permanent-field electric motor (1) and corresponding method. When a function computer (3) and/or a monitoring computer (4) recognises an error in the control system, the electric motor (1) ...
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WO/2007/122904 |
Provided are a motor control device, which can retain the stability of a control line simply without measuring the frequency characteristics of a mechanical unit and which can set a torque command filter suited for the characteristics of...
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WO/2007/104285 |
Disclosed is a transverse flux machine in which the rotor comprises several axially adjacent permanent magnet rings that are formed by individual magnets whose magnetic orientation alternates in a radial direction. The stator concentrica...
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WO/2007/104285 |
Disclosed is a transverse flux machine in which the rotor comprises several axially adjacent permanent magnet rings that are formed by individual magnets whose magnetic orientation alternates in a radial direction. The stator concentrica...
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WO/2007/099635 |
The drive controller (1) of an actuator (2) previously measures positioning error of an actuator output shaft (7) caused by the angle transmission error of a wave motion reduction gear (5) and stores it as correction data (C). In a feedb...
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WO/2007/099629 |
A motor controller capable of suppressing a variation in output from a motor where the variation in output depends on the magnitude of output. The motor controller comprises a memory storing a correction data group for suppressing a vari...
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WO/2007/094190 |
A device for preventing sway of a suspended load, which does not require complex calculation for removing a frictional resistance component. The device has a speed control device (14) for outputting a torque command based on a speed comm...
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WO/2007/091428 |
An ECU (60) activates a breaking permission signal (RG) and outputs it to an AND gate (50) when a breaking signal (DWN) is inactivated. That is, when no error is detected by an error detection device (40), the ECU (60) normally activates...
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WO/2007/086377 |
Provided is a rotation control device for more accurately controlling rotation of an optical disk at the time of recording information on a label surface and the like of the optical disk where recording tracks and like do not exist. The ...
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WO/2007/085346 |
The invention relates to a method for storing operational status data of an electric motor (1), comprising a processor (4) for control thereof and a non-volatile memory (7), said non-volatile memory having a flash memory (7) embodiment w...
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WO/2007/083605 |
An electrically-driven device system (A) is composed of an electrically-driven device main body (1) which operates by motor power, and a control unit (2) for controlling the electrically-driven device main body (1). The control unit (2) ...
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WO/2007/083447 |
An electric circular saw (A) having a soft start function with which the rotational speed of a motor (9) reaches a preset speed in a constant speed operation region after a predetermined soft start time after the start of the motor. Resp...
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WO/2007/081676 |
Systems and methods of detecting an overload condition. In one embodiment, a method of monitoring a load of a DC motor includes intermittently de-energizing the motor; monitoring a first voltage; and measuring a first interval of time be...
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WO/2007/079950 |
The invention relates to a method for testing the brake function of a robot drive (10), wherein the robot drive is operated in a position-controlled manner. The brake is actuated during the running of the robot drive. After a predetermin...
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WO/2007/079924 |
The invention relates to a control circuit used for the control of safety-critical functions of a consumer with an inductive load portion, and to a malfunction monitoring method. The consumer is intended for connection to a direct voltag...
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WO/2007/081676 |
Systems and methods of detecting an overload condition. In one embodiment, a method of monitoring a load of a DC motor includes intermittently de-energizing the motor; monitoring a first voltage; and measuring a first interval of time be...
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WO/2007/074097 |
The invention relates to a method for determining the magnet temperature in a permanent magnet electrical machine (1). The magnet temperature (T) can be determined in a particularly simple and precise manner if a phase voltage (Uind) and...
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WO/2007/062612 |
The invention relates to a monitoring unit for monitoring the load of an electric motor. The monitoring unit provides for the motor load to be monitored over the entire torque range. For this purpose, the monitoring unit uses linearizing...
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WO/2007/051670 |
The invention relates to a pulse-width modulation rectifier for operating an electric machine (1) in the engine or generator mode, comprising a connection (7) for a control device (6) that communicates with the pulse-width modulation rec...
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WO/2007/051690 |
In order to operate an electrical appliance, particularly an electrical household appliance, by means of an appliance control device (GS) which is designed for operating a drive system comprising a universal electric motor and feeds supp...
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WO/2007/046257 |
There are provided a motor control device and method for deciding velocity instruction shape within the limit of a movement range, a velocity, and an acceleration of an object device while maintaining the acceleration as high as possible...
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WO/2007/042179 |
A load monitor for monitoring the load of a motor comprises a Central Processing Unit (CPU) and a memory. During normal operation of the motor, the load monitor is arranged to repeatedly measure the torque and registering the speed of th...
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WO/2007/042159 |
The invention relates to an electric machine control system comprising a control unit (1) and a monitoring unit (2) independent therefrom, wherein said control unit (1) is provided with a device (4, 5, 22, 15, 16) for converting one or s...
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WO/2007/029825 |
A position control device includes: position control means for subjecting a position deflection to proportional calculation and outputting a speed instruction; speed control means for subjecting the speed deflection to proportion and int...
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WO/2007/023839 |
There is provided a drive circuit for a fan motor. In the drive circuit (100), a first PWM comparator (22) compares a temperature detection voltage Vth to a cyclic voltage Vosc and outputs a first PWM signal Vpwm1. A second PWM comparato...
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WO/2007/018045 |
Provided is a system identification device capable of identifying the inertial moment and the viscous friction of an electric motor exclusively with minute actions. The system identification device comprises a position amplitude operator...
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WO/2007/006472 |
The invention relates to a blown film manufacturing installation (15) that has the following characteristics: a blow head (2) from which a tubular film (1) can be extruded; at least one fan (20, 23, 27), with the aid of which air can be ...
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WO/2007/005629 |
A control system, method and article allows a monitoring module (50) to monitor operation of a main controller (20) in an electric drive, by providing questions and evaluating the accuracy and/or timeliness of responses from the main con...
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WO/2007/005629 |
A control system, method and article allows a monitoring module (50) to monitor operation of a main controller (20) in an electric drive, by providing questions and evaluating the accuracy and/or timeliness of responses from the main con...
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WO/2007/001079 |
An electric vehicle, comprising a drive shaft outputting a drive force and at least two motors outputting a power to the drive shaft. The electric vehicle further comprises a control means which, when either of the motors is brought into...
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WO/2007/000285 |
The invention relates to a control system for a permanently-excited electric machine, wherein each phase thereof is associated with a half-bridge device by first and second switch elements for supplying power by means of an intermediate ...
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