Patents for G05B 5 - Anti-hunting arrangements (1,325)
09/1998
09/29/1998US5813241 Crytallization detection and recovery for two-stage absorption refrigeration machine
07/1998
07/21/1998US5784273 Method and system for predicting limit cycle oscillations and control method and system utilizing same
07/21/1998US5784272 Control system for a process that exhibits periodic disturbances
06/1998
06/16/1998CA2114804C Adaptive error correction control system for optimizing stirling refrigerator operation
06/10/1998CN1184273A Driving control circuit, driving control method and electronic equipment
06/03/1998EP0845722A2 Method and apparatus for estimating and controlling non-linear disturbances in a feedback control system
05/1998
05/19/1998US5754023 Gyro-stabilized platforms for force-feedback applications
03/1998
03/10/1998US5726879 Control apparatus, a stage apparatus and a hard disk servo writer apparatus including a robust stabilizing compensator
03/04/1998EP0826166A1 Process for determining a feedforward control
02/1998
02/17/1998US5719788 Automatic detection of excessively oscillatory feedback control loops.
01/1998
01/07/1998EP0817377A2 Increased bandwidth for plants with resonant modes using nonlinear notch filters
01/07/1998EP0815622A1 Cross-connect method and apparatus
12/1997
12/02/1997US5694015 Hunting suppressor for polyphase electric motors
11/1997
11/20/1997WO1997043701A1 Optimal arbitrary time-delay (oat) filter and method to minimize unwanted system dynamics
09/1997
09/03/1997EP0707718B1 Controlling device
09/03/1997EP0576661B1 Adjusting arrangement
06/1997
06/11/1997EP0682611B1 Device for operating a rain detector
06/10/1997US5638267 Method and apparatus for minimizing unwanted dynamics in a physical system
05/1997
05/14/1997EP0772803A1 Method and apparatus for phase compensation in a vehicle control system
04/1997
04/16/1997CN1034613C Nerve network controller for electromagnetic bearing of flexible rotor system
04/16/1997CN1034612C Nerve network controller for vibration suppression of flexible rotor system
04/02/1997EP0657042B1 Structured multiple-input multiple-output rate-optimal controller
03/1997
03/25/1997US5614801 Apparatus for effectively handling a saturation condition in a digital compensator
11/1996
11/21/1996WO1996036909A1 Process for determining a feedforward control
11/21/1996DE19518113A1 Verfahren zur Bestimmung einer Störgrößenaufschaltung Method for determining a feedforward control
10/1996
10/30/1996EP0739500A1 Control process
10/16/1996EP0737331A1 Control system and control means to be used in such a control system, and a correlation system
09/1996
09/26/1996WO1996029764A1 Cross-connect method and apparatus
09/26/1996CA2214890A1 Cross-connect method and apparatus
09/18/1996EP0731936A1 Adaptive control system for controlling repetitive phenomena
08/1996
08/08/1996WO1996013763A3 Control system and control means to be used in such a control system, and a correlation system
06/1996
06/18/1996US5528119 Method and apparatus for phase compensation in a vehicle control system
05/1996
05/09/1996WO1996013763A2 Control system and control means to be used in such a control system, and a correlation system
04/1996
04/30/1996US5511930 Precision positioning apparatus
04/24/1996EP0707718A1 Controlling device
04/23/1996US5510976 Control system
04/11/1996WO1996010780A1 Adaptive control system for controlling repetitive phenomena
04/02/1996US5504672 Industrial process controller and method of process control
03/1996
03/14/1996DE4428223A1 Measurement value predetermination unit, for use during e.g. measurement of rapidly running process
02/1996
02/06/1996US5490057 Feedback control system having predictable open-loop gain
01/1996
01/16/1996US5485367 Process control apparatus
01/10/1996EP0691600A1 Feedback control
12/1995
12/13/1995EP0595914B1 Adaptive control system input limiting
12/07/1995WO1995033229A1 Method and apparatus for phase compensation in a vehicle control system
10/1995
10/11/1995CN1030013C Feedback system control device and applications in amplifiers and servomechanisms
09/1995
09/27/1995CN1029824C Chlorine-resistant semipermeable membranes
09/19/1995US5451849 Motorized self-correcting automatic convertible top
08/1995
08/30/1995CN1107589A Nerve network controller for vibration suppression of flexible rotor system
08/16/1995CN1106939A Nerve Network controller for electromagnetic bearing of flexible rotor system
08/15/1995US5442510 Control system for tracking nonlinear systems
07/1995
07/25/1995US5436541 Rain detector
07/11/1995US5432697 Technique for controlling the symbolic dynamics of chaotic systems to generate digital communications waveforms
06/1995
06/14/1995EP0657042A1 Structured multiple-input multiple-output rate-optimal controller.
06/13/1995US5424950 Vehicle control surface position feedback compensator for reducing vehicle oscillation
04/1995
04/04/1995US5404298 Chaos feedback system
03/1995
03/16/1995WO1995007502A1 Industrial process controller and method of process control
03/09/1995WO1995002212A3 Control process
02/1995
02/23/1995DE4435663A1 Device for compensation for the eddy-current influences in electromagnetic actuators
01/1995
01/24/1995US5384698 Structured multiple-input multiple-output rate-optimal controller
01/19/1995WO1995002212A2 Control process
01/19/1995WO1995002211A1 Controlling device
01/19/1995DE4423871A1 Control method
01/03/1995USH1410 H-infinity controller for an electro-mechanical actuator
12/1994
12/28/1994EP0631212A1 Chaos feedback system
12/21/1994CN1096604A Chaos feedback system
11/1994
11/22/1994US5367237 Electromechanical actuator controller
10/1994
10/25/1994US5359520 Adaptive error correction control system for optimizing mirror positioning in a spatial chopping or scanning telescope
07/1994
07/19/1994CA1330836C Control loop instability detection and correction apparatus
05/1994
05/25/1994CN1087184A Process controlling unit
05/18/1994EP0597086A1 Adaptive error correction control system for optimizing stirling refrigerator operation
04/1994
04/13/1994EP0592245A2 Process control apparatus
03/1994
03/29/1994US5298845 Anti-windup proportional plus integral controller
03/17/1994WO1994006063A1 Structured multiple-input multiple-output rate-optimal controller
03/17/1994WO1993024871A3 Adaptive error correction control system for optimizing stirling refrigerator operation
03/01/1994US5291390 Control apparatus for mechanical devices which regulates control system operation speed to prevent hunting and overshooting and thereby optimizes the control signal
01/1994
01/26/1994EP0580344A2 Process for detecting and dampening oscillatory reactive behavior
01/25/1994US5282129 Control basic building block (CBBB)
01/05/1994EP0576661A1 Adjusting arrangement.
12/1993
12/14/1993US5270916 Apparatus and method for preventing runaway of the integral term of a proportional plus integral controller
12/09/1993WO1993024871A2 Adaptive error correction control system for optimizing stirling refrigerator operation
11/1993
11/10/1993EP0568712A1 Speed control device of an electric machine comprising torque limiting means
10/1993
10/26/1993US5256952 Magnetic bearing control method and apparatus
09/1993
09/28/1993US5249119 Apparatus for and method of detecting a malfunction of a controller
09/21/1993US5245830 Adaptive error correction control system for optimizing stirling refrigerator operation
09/08/1993EP0559397A2 Precision positioning apparatus
08/1993
08/05/1993WO1993015447A1 Adjusting arrangement
07/1993
07/29/1993DE4238833A1 Closed loop control for workpiece or tool drive - establishes control regulator functions for accurate command following while suppressing periodic disturbance
07/27/1993US5231341 Limiter circuit of servo motor control apparatus
07/27/1993CA2024199C Negative feedback system servo control and its application to amplifiers and servomechanisms
07/14/1993EP0550952A1 Single-button actuated self-correcting automatic convertible top
07/06/1993US5225747 Single-button actuated self-correcting automatic convertible top
07/06/1993US5224664 Adaptive control system input limiting
05/1993
05/13/1993DE4237810A1 Operating microprocessor closed loop control regulator - adding main control action output to feedforward action determined by examination of characteristic to determine correction
03/1993
03/24/1993EP0533148A1 Limiter circuit of servo motor control apparatus
03/18/1993DE4130849A1 Suppressor of limit cycles due to deadband in closed loop systems - has additional positive and negative voltage components introduced into loop to modify torque error signal
03/02/1993US5190020 Automatic control system for IC engine fuel injection
02/1993
02/04/1993WO1993002405A1 Adaptive control system input limiting
01/1993
01/20/1993EP0523252A1 Oscillation damper
12/1992
12/24/1992DE4120000A1 Limiting control action particularly for vehicle engine speed - having error signal integrated to generate signal that limits output if signal exceeds current error signal level
12/22/1992US5173649 Method and apparatus for improving dynamic response of a feedback control loop by generating a common-mode gain
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