Class 318/610 - With rate (P. I. D.) (e.g., reset windup prevention)

Subclass of Class 318 - Electricity: motive power systems
Definition: Subject matter in which a third error detector is provided
No. of applications: 22
Last issue date: 01/05/2012

Application No.	Application Title	Issue Date
20120001582	CONTROLLER FOR ACTUATION SYSTEM EMPLOYING KALMAN ESTIMATOR INCORPORATING EFFECT OF SYSTEM STRUCTURAL STIFFNESS A controller for an electro-mechanical actuation system such as a missile fin actuator includes a Kalman estimator circuit which generates an estimate of operating state including position and velocity of motor, position and velocity of a position-controlled element (PC...	01/05/2012
20100156336	LOW SPEED CONTROL METHOD AND APPARATUS FOR SERVO MOTOR A low speed control method and an apparatus for a servo motor. The control apparatus comprises: an encoder capable of acquiring a speed signal from a servo motor and encoding the speed signal to output a low-resolution encoded signal; an insertion calculation unit capab...	06/24/2010
20100066296	METHOD FOR ADAPTING CONTROLLER PARAMETERS OF A DRIVE TO DIFFERENT OPERATING STATES A method is provided for adapting controller parameters of a drive to different operating states. A control loop includes a PID controller whose I gain factor is adapted to a drive velocity and/or whose D gain factor is adapted to a drive current, and consequently to a ...	03/18/2010
20090265992	Door Operator for Controlling a Door and Method of Same A door operator for controlling operation of a door, the door operator having a motor to open the door against a spring force, the door operator further comprising a door position sensor for transmitting a signal indicative of door position; and among other things, calc...	10/29/2009
20090224717	Operating apparatus An operating apparatus including a main body, a movable member, a drive unit having a drive source, and a control unit controlling the drive source to control the position of the movable member relative to the main body. The control unit including a position control sys...	09/10/2009
20090167231	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 differential, including a pure differential, a limited slip differential, and/or a...	07/02/2009
20090143908	Balancing device A balancing device includes an active balancing mechanism. The active balancing mechanism maintains the balancing device in an actively balanced state within a range of the active balancing mechanism. An auxiliary balancing mechanism is configured to support the balanci...	06/04/2009
20090108793	METHOD FOR CONTROLLING A HOLDING FORCE AGAINST, AND LIMITING IMPACT WITH TRAVEL LIMIT POSITIONS An actuator includes a motor operated by a controller through a pulse width modulation drive signal applied to a drive circuit that drives the motor. The actuator has an output shaft connected to a coupling structure for manipulating a device such as a variable geometry...	04/30/2009
20080147252	Motor Controller This application describes the software invented to control a dual electric motor system. The dual electric motor system is a Chorus Motor system applied to electric drive for aircraft taxi. The software uses closed-loop control together with several other control laws ...	06/19/2008
20080116834	Methods and Apparatus for an Active Front Steering Actuator An active front steering system includes a motor controller configured to compute a position error from a commanded position value and an actual position value, and then enter one of two modes—a commutation enable mode and a commutation freeze mode—depending upon th...	05/22/2008
20070003258	Anti-Trap Protection Detection Based on Comparing the Duty Cycle of a PWM Control System In order to create a method and an apparatus for anti-trap protection detection for displaceable window and door elements by means of which faster and more stable adjustment to current physical conditions can be achieved during system actuation, in the system the motor ...	01/04/2007
20060250103	Method and apparatus for adaptive motor speed control A different adaptive control method is used to control a motor during each of two or more phases of motor operation. Thus, in a first phase of motor operation the motor is controlled using a first adaptive control method, in a second phase of motor operation the motor i...	11/09/2006
20060108962	Adaptive controller for PC cooling fans A system and method for controlling a fan is disclosed. In one embodiment, a fan controller is integrated in silicon and uses an embedded microcontroller to implement a digital fan control algorithm. The microcontroller may continually monitor temperature and sample the...	05/25/2006
20060087274	Methods and systems for reducing unintentional collisions A method for differentiating if a feedback signal is a result of an unintentional collision in a servo system includes injecting a feed forward term in the servo system. ...	04/27/2006
20050237021	Rotatingly driving device of construction machinery In a construction machine comprising an electric motor 6 for driving a rotational system, an operating member for instructing an operation of the electric motor 6, and a controller 9 for controlling the electric motor 6 according to an operat...	10/27/2005
20050225279	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 configured to calculate a value of a current flowing through the motor b...	10/13/2005
20050206337	System and method for conditioning a signal A method of conditioning a signal being communicated between a system to be controlled and a controller may include monitoring an actual output signal and conditioning the actual output signal. The method also includes determining the difference between the actual outpu...	09/22/2005
20050140324	Method and device for identifying a faulty rotor position angle signal A method and a system for identifying a faulty rotor position angle signal of a synchronous motor powered by a converter, wherein a first flux angle is determined from the rotor position angle signal, wherein from the motor currents of the synchronous motor a current po...	06/30/2005
20050116677	Control constant adjusting apparatus A control constant adjusting apparatus in a control apparatus of a robot or a machine tool, etc. is disclosed. This control constant adjusting apparatus includes a speed control part (12), an estimation part (13), an identification part (14) and an ...	06/02/2005
20050088132	Methods and systems for reducing unintentional collisions A method for detecting collisions between an obstacle and an electromechanical system having a mechanical output controlled by a servo system includes inputting a forcing function x_ito the servo system to direct the mechanical output to move in an intended m...	04/28/2005
20050073277	Motor control system and method fast-adaptable to operation environment A method and an apparatus to control a motor includes calculating N control algorithms for respective controllers to correspond to N motor driving conditions, driving the motor under N motor driving environments by using at least one controller of the respective control...	04/07/2005
20050067997	SERVO LOOP PID COMPENSATOR WITH EMBEDDED RATE LIMIT This invention describes a reconfigured form of the PID compensator such that the rate of change of the position error is inherently limited without affecting the performance of the servo loop when the position error is small. The technique described here maintains the ...	03/31/2005

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Class 318/610 - With rate (P. I. D.) (e.g., reset windup prevention)