Patents
Sitemap › G05 - Controlling; Regulating › G05B - Control or regulating systems in general; Functional elements of such systems; Monitoring or testing arrangements for such systems or elements › G05B 11 - Automatic controllers
Patents for G05B 11 - Automatic controllers (10,398)
07/1992
07/01/1992EP0335957A4 Expert system with process control
06/1992
06/23/1992US5124626 Sinusoidal signal amplitude and phase control for an adaptive feedback control system
06/09/1992US5121332 Control system for sheetmaking
06/04/1992DE4038857A1 Regulating path for DC motor armature current regulation - uses inverse transmission function component across PI regulator to compensate for nonlinearity
06/02/1992US5119304 Method and apparatus for controlling engine in engine characteristics test
06/02/1992US5119288 Controlling apparatus utilized in process instrumentation system
05/1992
05/20/1992CN1016745B Universal process control device and method
05/19/1992US5115395 Pulse width modulation technique
05/05/1992US5111124 Continuous deadbeat control system with feedback control
04/1992
04/29/1992CN1016469B Process control with improved prefixed feedback arrangment
04/22/1992CN1060540A Two degrees of freedom type control system
04/22/1992CN1060490A Method for observing and controlling depth of catallst-cracking reaction
04/16/1992WO1992006421A1 Process for reducing hysteresis effects, and an electromagnetic transducer in which hysteresis effects are reduced in this way
04/14/1992US5105138 Two degree of freedom controller
04/08/1992EP0479136A1 Digital servo-control apparatus
04/01/1992EP0477413A1 Method for reducing hysteresis and electromechanical converter with hysteresis reduction
04/01/1992CN1016114B Explosion-proof method and apparatus for installations, pipe and similar device by monitoring pressures
03/1992
03/24/1992US5099183 Proportional-integral process controller having a comparator with a variable slope ramp generator and a constant threshold generator
03/18/1992EP0474888A1 Method of regulating gain of motor control
03/11/1992EP0474492A2 Two degrees of freedom type control system
03/11/1992EP0474033A2 State oriented control method
03/11/1992EP0473914A2 Control system for an actuator in an internal combustion engine
03/03/1992US5093609 Servomotor control method
02/1992
02/25/1992US5091919 Transmitter arrangement for digitally modulated signals
02/25/1992US5091844 Preemptive constraint control
02/05/1992EP0469771A2 Method and apparatus for process control
02/05/1992EP0469617A1 Closed-loop feedback control system having an adaptive filter
02/05/1992EP0469151A1 Method of learning feed-forward gain in motor control
02/04/1992US5085190 Error-corrected automatic control system
01/1992
01/28/1992US5084825 Process control with guard band and fault limit
01/23/1992DE4115716A1 Quantitative measurement values offset eliminator - uses register of precise values for set conditions for motor vehicle steering angle detectors
01/22/1992EP0467519A1 Pulse width modulation technique
01/22/1992EP0247206B1 Speed control system
01/20/1992CA2043916A1 Pulse width modulation technique
01/15/1992EP0465857A2 Stepper motor throttle controller
12/1991
12/17/1991US5073747 Feedback system control device and applications in amplifiers and servomechanisms
12/11/1991EP0460676A2 Set-and-display system associated with control component units
11/1991
11/21/1991EP0457230A2 Selectable control function injection molding controller
11/20/1991CN1056355A 2 dof controller
11/13/1991EP0455938A1 Adaptive two-step controller
11/13/1991CN1056204A Parts efficient memory based functional circuit having selectable transfer characteristics
11/12/1991US5065152 Two-wire loop electric circuit arrangement
11/12/1991US5065080 Control system
11/06/1991EP0455426A2 Circuit having selectable transfer characteristics
11/06/1991CN2088062U Full-automatic safety means of switch of central control lock for vehicles
10/1991
10/30/1991EP0454132A1 Periodic disturbance compensating process control device
10/23/1991EP0453259A1 2Dof controller
10/22/1991US5059880 Digital control system
10/17/1991WO1991015893A1 Method of regulating gain of motor control
10/17/1991CA2014616A1 Well booster system
10/15/1991US5057720 Output buffering H-bridge circuit
10/09/1991EP0450195A1 Multi-variable regulator having at least four mechanical ports and system provided with such a regulator
10/09/1991CN1055248A Servo amplifier
10/02/1991EP0449550A2 Thermostat with means for disabling PID control
10/02/1991CN1014195B Two-wire loop electric circuit arrangement
09/1991
09/28/1991CA2039096A1 Thermostat with means for disabling pid control
09/25/1991EP0447646A1 Error-corrected control system
09/25/1991EP0309515B1 Two-wire loop electric circuit arrangement
09/25/1991CN1054856A Differential current protection circuits
09/19/1991DE4105740A1 IC engine fuel injection control system - performs error correction function using error signals provided at centre and end of regulation range
09/18/1991EP0446367A1 Control device
09/18/1991CN1054676A 过程控制系统 Process Control System
09/17/1991US5050063 Method for controlling the characteristics of an aqueous solution
09/11/1991EP0445940A1 Process control system
09/05/1991WO1991013489A1 Method of learning feed-forward gain in motor control
08/1991
08/28/1991CA2034474A1 Apparatus and method for preventing runaway of the integral term of a proportional plus integral controller
08/14/1991DE4038212C1 PID regulator based on microprocessor - has P-, I- and D-elements in parallel channels with switch unit in I-channel
08/14/1991DE4004183A1 Stepping regulator for motor control - has input fed to tri state switching stage with feedback to integrator stages
07/1991
07/30/1991US5036265 Method and device for eliminating the effect of periodic disturbance variable having a known, variable frequency
07/23/1991US5034312 Controlling the formation of silver halide emulsions by adding silver nitrate and alkali metal halide
07/16/1991US5032992 Electronic temperature control system
07/11/1991WO1991010177A1 Method and device for the consideration of varying volume and flow in the control of a continuous flow process
07/10/1991EP0436209A2 Harmonization control system for plural shafts
07/09/1991US5030847 Pulse-width modulator and driving circuit
07/02/1991US5029066 Process control system
06/1991
06/26/1991CN1013005B Multifunctional automatic controller convenient to extend its functions
06/12/1991EP0432138A2 A control panel
06/12/1991CN1052153A Single-tank control cabinet for electrolysis of aluminium
06/11/1991US5023535 High resolution pulse width modulation
06/05/1991EP0430753A2 Method for determining the optimal variable/properties relation in a process or a composition
06/04/1991US5021990 Output pulse generating apparatus
05/1991
05/29/1991CN2078017U Controlled circuit of digital preplacing of multiplexing upper and lower limit
05/22/1991EP0428505A2 A control apparatus
05/21/1991US5018043 Removable modular control device for a contactor apparatus
05/21/1991US5017089 Propeller speed governor having a derivative inhibit at high flight speeds
05/08/1991CN1051253A Regulating and controlling circuit for switching power supply
05/07/1991WO1991006918A1 Preemptive constraint control
05/07/1991US5014157 Apparatus for controlling and testing an electric installation
05/01/1991CN1051094A Method for correcting operation control detection data of an electric equipment and apparatus therefor
04/1991
04/18/1991WO1991005297A1 Process for regulating a setting system subject to friction
04/18/1991WO1991005292A1 Control device
04/17/1991CN2075359U 复合调节器 Composite regulator
04/10/1991EP0421793A2 Method of control rule generation and method of fuzzy control using the same, and apparatus for automatic control rule generation and fuzzy control apparatus using the same
04/10/1991CN1050622A Feedback system control device and applications in amplifiers and servomechanisms
04/03/1991EP0419656A1 Speed controller
04/03/1991CN2074472U Deviation-controlled anti-integral-saturation pid regulator
04/03/1991CN2074432U Feedback-type energy-saving heating controller
04/03/1991CN1012290B Di-directional reversible inversion circuit
04/02/1991US5003948 Stepper motor throttle controller
03/1991
03/27/1991EP0418832A2 Control method and apparatus
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