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9035594 Boost converter control apparatus  
A boost converter control apparatus for controlling a motor drive system which is provided with a boost converter disposed between an electric power converter and a direct current power supply,...
8866430 Apparatus for controlling boost converter  
An apparatus for controlling a boost converter is provided with: an operating device provided with a proportional element, an integral element and a derivative element, the derivative element...
8823314 Energy saving system and method for devices with rotating or reciprocating masses  
A system and method are provided for reducing the energy consumed by a pump jack electric motor by reducing the supply voltage to the motor when the motor would be generating energy in open loop...
8704478 Motor drive circuit  
A motor-drive circuit includes: a filter circuit to attenuate a frequency band including a resonance frequency of an actuator in a target-current signal, which is a digital signal indicating a...
8698447 Energy saving system and method for devices with rotating or reciprocating masses  
A system and method are provided for reducing the energy consumed by a pump jack electric motor by reducing the supply voltage to the motor when the motor would be generating energy in open loop...
8698446 Method to save energy for devices with rotating or reciprocating masses  
A system and method are disclosed for turning off the voltage to a pump jack electric motor during predetermined periods of time to save energy. In the method, the motor's response to closed-loop...
8653780 Integrated upsampler and filtering for multi-rate controller for electro-mechanical flight actuation system  
Presented is a system and method for controlling an actuator in a multirate control system using an integrated upsampler and filter, comprising an incremental command limiter for changing a...
8629642 Closed-loop motor driver compensation  
A control loop circuit for use in a closed-loop control system that controls a system such as a linear motor is presented. The control loop circuit includes a lead-lag compensator that features a...
8427117 Electromechanical arrangement  
Electromechanical arrangements are utilized widely whereby a prime mover in the form of a mechanical assembly such as a gas turbine engine is utilized to drive an electrical machine as an...
8274252 Motor control apparatus  
A motor control apparatus includes a sub-controller including a two-degree-of-freedom repetitive compensator and a shaping filter. The two-degree-of-freedom repetitive compensator includes a...
8138708 Closed-loop motor driver compensation  
A control loop circuit for use in a closed-loop control system that controls a system such as a linear motor is presented. The control loop circuit includes a lead-lag compensator that features a...
8120302 Servo control apparatus  
A servo control apparatus capable of suppressing adverse effects of disturbance, load variation and the like, and realizing robust and high-performance speed control. The apparatus includes both...
7956567 Motor drive control device and image forming apparatus  
A motor drive control device for controlling a rotational speed of a motor includes: a motor driver for rotationally driving a motor; a correction amount calculating section for detecting a...
7957844 Device and a method for power balancing  
A method for stabilization of the power balance in an electric power system including a number of nodes. An instantaneous value of the mains frequency of the electric power system is sensed. In...
7911173 Open loop method for controlling power  
A method of power control for an electrical motor using open-loop principles is disclosed. The method employs a desired control line function that determines hold-off time based on a detected...
7911172 Machine position control device  
An accurate load position control is made possible even when rigidity of a load drive system using a motor is relatively low. Load position signal xl is a present-position measurement value of a...
7902786 Motor controller  
A motor controller includes a command part that generates a command signal, a control part that drives a control object through an output filter when the command signal is input, an operating...
7847509 System and method for controlling electric motors to simulate a mechanical differential  
System and methods of controlling a plurality of motors based on a motor motion attribute, such as rotor position, velocity, or acceleration, which simulate the properties of a mechanical...
7808199 Control apparatus  
A control apparatus of the present invention comprising a control unit outputting a control signal controlling a servo motor and suppressing natural vibration of a controlled object including a...
7733041 Method and device for driving rotating-body, process cartridge, image forming apparatus, and computer program product  
A plurality of detection target portions are arranged around a rotating shaft of a rotating-body, one of which causes a detector to generate a first detection signal different from a second...
7725201 Feedback control device  
In a feedback control apparatus comprising a controller, a control object to be controlled by the controller, and an observer for inputting a control output from the control object and an output...
7715964 Very low speed vehicle control algorithm operating in the spatial domain  
A method of operating a vehicle at a substantially low speed based on change in the vehicle position. The method comprises the following steps: (A) transforming a steering control algorithm into a...
7589484 Closed loop acceleration control for a data storage device motor  
Method and apparatus for accelerating a multi-phase motor having a rotatable rotor are disclosed. A first commutation state in which the rotor resides is identified, after which a Proportional,...
7528566 Method for controlling voltage of DC link for electric vehicle  
Disclosed is a method for controlling a voltage of a DC link for an electric vehicle, which can reduce a capacitance of the DC link interposed between an inverter and a DC/DC converter. The method...
7498760 Drive control apparatus  
A drive control apparatus including a feed-forward operation amount generation device, a feed-back operation amount generation device, a feed-forward correction amount generation device and a...
7495409 Method and apparatus for eliminating stall and cogging in multi-phase stepping motors  
The lead or lag relationship between the stator and rotor of a stepper motor is monitored on a continuing basis by an incremental encoder, in feed-back relation, and adjusts the lead or lag to...
7432681 Scanner system  
A scanner system includes a servo control unit. A rotation angle of a rotating shaft supporting a mirror is detected, and an error of the detected value with respect to a commanded value is...
7376063 Control circuit of optical storage device and method thereof  
A control circuit of an optical storage device includes a loop phase calculation unit for calculating a closed loop phase of a servo system according to at least one error signal of the servo...
7345442 Device for controlling electric-motor power steering device  
Distortions of motor voltage and current and a torque ripple of the motor are generated by dead band compensation for preventing an arm short circuit of an inverter, and a feeling of physical...
7345448 Adaptive command filtering for servomechanism control systems  
Preferred embodiments of the invention implement techniques for modifying the command trajectory, the architecture of a servomechanism control system, or both, to reduce the servo error during...
7265507 Angular position and velocity estimation for synchronous machines based on extended rotor flux  
A method of correcting the determination of extended rotor flux using a lag function and a correction algorithm that closely approximates a pure integrator function to correct for lag function...
7245975 Skew compensation  
A system and method for generating master and slave reference signals is disclosed, wherein at least one axis of the plurality of axes is a master section and at least one axis of the plurality of...
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,...
7184847 Method and system for controlling a process in a plant  
A method and system are disclosed for controlling a process by establishing a control factor for a proportional-integral-derivative (PID) controller used to control a parameter of a process...
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...
7042186 Decoupling a harmonic signal from a signal path  
A method for decoupling a harmonic signal from an input signal wherein the harmonic signal is harmonic relative to a signal other than the input signal. An angular position of the other signal is...
6914404 Motor controller  
A motor controller, comprising a first simulation control unit (8) and a second simulation control unit (9) as a feed forward control means for inputting a command to an actual control unit (10)...
6861816 Positional control of a controlled object during movement initiation  
In a positional control device for controlling a position of a controlled object using a motor, when generating a torque command value τc which serves as the command value for the servo motor of...
6859006 POSITION CONTROL SYSTEM FOR USE IN DRIVING SYSTEM TRANSMITTING DRIVING FORCE OF DRIVING SOURCE TO DRIVEN MEMBER THROUGH POWER TRANSMISSION MECHANISM, IMAGE FORMING APPARATUS, POSITION CONTROL METHOD, PROGRAM FOR PERFORMING THE POSITION CONTROL METHOD, AND STORAGE MEDIUM HAVING THE PROGRAM STORED THEREON  
A position control method for accurate position control of a driving source is disclosed. The method of the present invention comprises the steps of comparing a remaining driving amount of the...
6825633 Method for adapting jerk profiles through jerk limitation for minimizing excitations of oscillations during movement of a machine element  
The excitation of an oscillation in a mechanical system, such as a machine element, subjected to a jerk can be suppressed or at least attenuated by rounding a corresponding jerk curve and/or by...
6812668 Apparatus, method and program for controlling an electric motor  
Apparatus, method and program for controlling electric motors to drive movable objects, wherein an input-rectifying device is operable, when a control signal to be applied to one of the electric...
6713978 Method and system for determining induction motor speed  
A non-linear, semi-parametric neural network-based adaptive filter is utilized to determine the dynamic speed of a rotating rotor within an induction motor, without the explicit use of a speed...
6696809 Robot, servo circuit, actuator, robot control method, and actuator driving method  
Based on a control object, a result of the detection of driving of an actuator and a response from a standard mathematical model of the actuator, the actuator is controlled, or in a servo system...
6566837 Position controller for motor  
A position controller for motors for increasing the position loop gain of a full-close control system without causing recurrence of vibration. The controller where a position signal representing...
6507165 Controller for machine  
A controller for a machine such as a robot and a machine tool having an electric motor as a driving source of the machine, capable of suppressing a natural vibration of the machine and/or an...
6477445 Method and apparatus for controlling an industrial robot  
An equipment for controlling an industrial robot, which robot has a plurality of rotation and/or translation axles (ax 1-6), comprising a motor (15) at each of said axles for generating desired...
6323614 System and method for controlling suspension using a magnetic field  
A system for controlling the position of a rotating member suspended using a magnetic field includes at least one sensor that is operable to detect the position of the rotating member, the sensor...
6255794 Procedure for the digital evaluation of analogue resolver output signals  
In a procedure for the digital evaluation of the analogue output signals from a resolver with at least two stator windings, arranged perpendicular to each other on a stator, and at least one rotor...
6252369 Motor speed controller and gain setting method of the controller  
A motor speed controller with high speed response characteristics. The controller comprises a proportional operating means, a means (1) which controls the angular velocity of a motor, an...
6084371 Apparatus and methods for a human de-amplifier system  
A human de-amplifier system for interfacing a human operator and a physical object through a physical plant, wherein the physical object has dimensions in the range of 1 micrometer to 1 mm. The...

Matches 1 - 50 out of 288 1 2 3 4 5 6 >