|
Match
|
Document |
Document Title |
|
|
7208901 |
Control method for jerk-limited speed control of a movable machine element of a numerically controlled industrial processing machine
A control method for controlling a speed of a movable machine element of a numerically controlled industrial processing machine with jerk limitation is described. The processing machine can be, for...
|
|
|
7199548 |
Drive control apparatus and method of alternating current motor
A drive control apparatus, which controls an AC motor subjected to rotational drive by applying a rectangular wave voltage thereto, comprising: an actual torque detection section for detecting an...
|
|
|
7187154 |
Motor drive apparatus and electric power steering apparatus
The present invention provides a motor drive apparatus capable of calculating an angular velocity and a rotation angle accurately in the entire rotation velocity range of a motor using a cheap Hall...
|
|
|
7183738 |
Motor control device
A speed control means 7 for outputting a drive command signal for a motor 1 to make the speed of the motor 1 conform to the speed command signal based on a signal indicating the difference...
|
|
|
7183739 |
Synchronous control device
There is provided a synchronous control device for driving the same control object with two servomotors. The synchronous control device detects the physical quantity that represents the difference...
|
|
|
7173392 |
Switching controller and method for controlling switching position
A second member and a first member are applied with bias force to mechanically engage with each other at one of detent positions defining relative positions therebetween. An electric motor rotating...
|
|
|
7173394 |
Apparatus and method for controlling inverter
An apparatus and method for controlling an inverter are disclosed to allow an inverter to provide a stable output voltage to a motor regardless of a change in a DC input voltage. A difference value...
|
|
|
7170249 |
Electrical phase compensation in BEMF spindle motor control
A method and apparatus for compensating for the asymmetrical phases of a spindle motor in a disc drive are provided. With the apparatus and method, compensation values are learned by sampling speed...
|
|
|
7151354 |
Magnetic noise reduction method for AC rotary electric machine, and motor control apparatus and AC rotary electric machine apparatus using the same
The invention provides techniques for reducing or altering the magnetic noise of an AC rotary electric machine. A magnetic noise reducing harmonic current of order n, whose frequency is n times the...
|
|
|
7148636 |
Motor drive control apparatus
A motor drive control apparatus for driving and controlling a linear vibration motor having a mover supported by a spring, with an AC current. The motor drive control apparatus includes a waveform...
|
|
|
7145307 |
Data storage apparatus and control method thereof with compensation
Embodiments of the invention provide a data storage apparatus and its control method capable of accurately reading/writing data. A data storage apparatus in an embodiment of the invention...
|
|
|
7141951 |
Data storage apparatus with compensation for vibration and control method thereof
Embodiments of the invention provide a data storage apparatus and its control method capable of accurately reading/writing data. In one embodiment, a data storage apparatus comprises: a servo...
|
|
|
7139621 |
Floating deadband control
A control system having a floating deadband control includes an input device moveable from a first position to a second position. In addition, the control system includes a controller configured to...
|
|
|
7138782 |
Motor control system and method of the same
The present invention provides a motor control system and method thereof. The motor control system comprises a motor controller and a compensation device. The motor controller is used for...
|
|
|
7132814 |
Method of calculating correction value and method of manufacturing printer
A correction value calculating method includes: preparing a printer including a motor, a PID control system for controlling the motor, and a memory for storing a correction value, the printer being...
|
|
|
7132815 |
Methods and devices for processing servo control signals
Servo control signals and data content associated with two different devices, such as a hard disc drive magnetic head and a digital video disc laser may both be processed without substantial loss...
|
|
|
7129668 |
Actuator control unit
An actuator control device includes an electrical control unit for detecting the present positions of output shafts of servo motors, and communicating with control circuits for driving the output...
|
|
|
7119507 |
Brushless DC motor and brushless DC motor controller
A brushless DC motor has a stator and a rotor. An angle θ 0 between an edge section of the flux barrier on a magnetic pole center side and an edge section on a side for coming in contact with the...
|
|
|
7120508 |
System and architecture for providing a modular intelligent assist system
A configuration system for an intelligent assist system is provided. The intelligent assist system includes a module, and a computational node on the module. The configuration system includes a...
|
|
|
7102315 |
Robot arm control method and control device
When either a command value or an actually measured value is appropriately selected as an angular velocity used for the frictional torque calculation, the frictional compensation can be made valid...
|
|
|
7098620 |
Minute object manipulating apparatus
A minute object manipulating apparatus includes a tool which manipulates a manipulation target object, an observation unit capable of changing the magnification for observating the manipulation...
|
|
|
7084596 |
Servomotor driving controller
A servomotor driving controller capable of highly accurate machining, which prevents a quadrant projection upon change in the quadrant where machining is made. After the position deviation...
|
|
|
7081730 |
Motor controller system for large dynamic range of motor operation
A motor controller system uses a rotary sensor with a plurality of signal conditioning units, coupled to the rotary sensor. Each of these units, which is associated with a particular range of motor...
|
|
|
7068923 |
Speed control apparatus of motor
A speed control apparatus includes a speed control part 12 for generating a source current command based on a difference between a speed command of a motor 4 and speed detection in which a...
|
|
|
7061714 |
Disk drive modifying estimated seek times for a rotational position optimization algorithm based on change in estimated seek time parameter
A disk drive is disclosed comprising a disk, a head, and a voice coil motor (VCM) for actuating the head over the disk. The disk drive executes a rotational position optimization (RPO) algorithm to...
|
|
|
7057367 |
Two-leg walking humanoid robot
It is a biped (two-footed) walking humanoid robot, which is provided with drive motors ( 11 d, 11 e , 18 L, 18 R- 24 L, 24 R, 28 L, 28 R- 33 L, 33 R, 35, 36 ) to pivotally move respective...
|
|
|
7053581 |
Electrically operated drive controller, electrically operated drive control method and its program
An electrically operated drive controller includes first and second electric current command value calculation processors, for calculating first and second electric current command values from a...
|
|
|
7053582 |
Control magnetic bearing device
A control magnetic bearing device comprises a plurality of control magnetic bearings for contactlessly supporting a rotor, an electric motor for rotating the rotor, a magnetic bearing drive circuit...
|
|
|
7049775 |
Servo motor control unit for press-forming machine
A servo motor for driving a die is provided with position and speed detectors. Further, a pressure sensor for detecting the pressure applied to a workpiece is provided. In the servo motor control...
|
|
|
7049782 |
Electrically operated drive controller, electrically operated drive control method and its program
An electrically operated drive controller includes first and second electric current command value calculation means which calculate first and second electric current command values based on a...
|
|
|
7034491 |
Numerical controller
For outputting an amount of backlash compensation according to the direction of reversal in the reversal motion of the moving axis, three output modes are prepared: (a) a mode in which a preset...
|
|
|
7026779 |
Motor control apparatus for controlling operation of mover of motor
A motor control apparatus of the present invention comprises a velocity detector for detecting a rotation velocity of a mover of a motor, a position detector for detecting a position of the mover,...
|
|
|
7015670 |
Method of controlling a high-friction electro-mechanical servo-mechanism to minimize the power needed to hold a loaded output member
The invention provides a method for controlling an electromechanical servomechanism ( 20 ) for moving an output member relative to a variable load ( 38 ). The servomechanism includes: a motor ( 37...
|
|
|
7009358 |
Electric power steering device and method for controlling the same
The present invention provides an electric power steering device enabled to compensate for the influence of the inertia of a steering-assisting-force generating motor on steering with accurate...
|
|
|
7005826 |
Method for enhancing the control response of a drive train having backlash and/or elasticity of a machine tool or production machine
A method for increasing the control response of a drive train of a machine tool or production machine with backlash and/or elasticity is described. A combined signal comprised of the motor speed...
|
|
|
7005823 |
Positioning system and positioning method
A positioning system for moving an object to a target position is presented. In an embodiment, the system includes a first actuator configured to exert a force on the object in a first direction in...
|
|
|
6998811 |
Compensation method for current-sensor gain errors
A method of compensation for current-sensor gain errors in an electric machine drive 14 includes a high frequency carrier signal electrically injected into the electric machine 14. A...
|
|
|
6998809 |
Robot apparatus, and load absorbing apparatus and method
To appropriately detect overload which may break a motor or deform a body and reduce the overload in the motor. The DC component of a load torque is derived from the sum of absolute values of a...
|
|
|
6998810 |
Position controller of feed shaft
A position controller for controlling a position of a feed shaft of a machine having a motor and the feed shaft driven by the motor is provided. A subtractor calculates a difference between a speed...
|
|
|
6995945 |
Head positioning system, disk drive apparatus using the same, and head positioning method
A head positioning system includes: a positioning mechanism section 1 for positioning a head 12 ; a position controller 2 for detecting a head position signal x to output a position control...
|
|
|
6992453 |
Actuator control system
An actuator control system restrains hindrance to an object under control by an interfering substance that exists on its traveling path when the object is moved toward a target position on one axis...
|
|
|
6984960 |
Methods and apparatus for current control of a three-phase voltage source inverter in the overmodulation region
A drive system that is suitable for high bandwidth current control of a three-phase voltage source inverter in the overmodulation region includes a feedback path that has a harmonic decoupling...
|
|
|
6982536 |
Device and method for apportioning a movement of a machine element along a drive axis of a machine tool or production machine
A device and method for apportioning a movement of a machine element driven by at least two drives for movement along a drive axis of a machine tool or production machine are described. A low-pass...
|
|
|
6983102 |
Motor control device for vehicular power mirror
When a signal level of a motor brush switching signal is low and thus dropouts or omission of the pulse signals converted by a waveform shaping part take place, so that an interval between a pulse...
|
|
|
6979971 |
Control device-built-in cylinder servo motor
An operation command for constructing compensation data is generated in a control device, and measurement data obtained from an external length measuring device is input to an input unit. The...
|
|
|
6967460 |
Error-correction apparatus for step-motor transmission system and a method for the same
An error-correction method and apparatus are used for a step motor transmission system. The step motor has a plurality of inductor coils therein for rotating an internal shaft thereof. A rotational...
|
|
|
6949905 |
Servo control system and method of setting
A servo control system which comprises an original cam pattern generator 11 for generating a first pattern of a cam shape relative to a phase corresponding to one revolution of a cam mechanism; a...
|
|
|
6943522 |
Servo controller
A servo controller includes a mechanical characteristic compensation unit for attenuating components having predetermined frequencies and corresponding to characteristics of a machine, which are...
|
|
|
6936990 |
Method for controlling electric motor and apparatus for controlling the same
An apparatus and method for controlling an electric motor is disclosed. The apparatus includes an instruction inputting section for transmitting an instruction for an electric motor or a control...
|
|
|
6928336 |
System and architecture for providing a modular intelligent assist system
An intelligent assist system having a modular architecture, coordinated by electronic communication links between the modules, is provided. Motion modules provide an assist upon actuation, and are...
|