Patents
Patents for G05D 17 - Control of torque; Control of mechanical power (1,130)
04/1996
04/02/1996US5503241 Electrically power-assisted steering apparatus
02/1996
02/20/1996US5493192 For a machine having a movable part
01/1996
01/16/1996US5484351 Arrangement for controlling the torque to be supplied by a drive unit of a motor vehicle
10/1995
10/24/1995US5460581 Automatic transmission control apparatus
09/1995
09/27/1995CN1029824C Chlorine-resistant semipermeable membranes
09/13/1995CN1108188A Method and apparatus for robust automatic clucth control
08/1995
08/30/1995EP0455685B1 System to control a motor for the assembly or dis-assembly of two members
08/17/1995DE19504287A1 AC motor torque measurement with hum reduction circuit
06/1995
06/28/1995EP0659132A1 Method of establishing reference braking torques.
06/21/1995EP0658698A2 Method and apparatus for robust automatic clutch control
06/21/1995CN1103839A Method and apparatus of vehicle transmission control by assured minimum pulse width
06/01/1995WO1995014550A1 Mobile precision boring tool
05/1995
05/31/1995EP0655554A1 Method of correction of torque jerks of an internal combustion engine
05/18/1995DE4339099A1 Speed regulation and torque control of electrical machine for vehicle testing
04/1995
04/27/1995DE4335726A1 Process and apparatus for controlling the output power of a vehicle
04/13/1995WO1995010135A1 Electric motor with torque detecting means
04/04/1995US5404301 Method and apparatus of vehicle transmission control by assured minimum pulse width
04/04/1995US5403249 Method and apparatus for robust automatic clutch control
03/1995
03/15/1995EP0643290A1 Device for checking, monitoring and control of mechanical brakes
02/1995
02/23/1995DE4327539A1 Method and device for determining the moment of inertia of a rotor, referred to its axis of rotation
02/02/1995DE4424619A1 Method for regulating a winding speed of thread-like material
01/1995
01/24/1995US5384525 Method of controlling a servomotor
01/17/1995US5381996 Valve operator
12/1994
12/14/1994EP0628742A1 Method and apparatus of vehicle transmission control by assured minimum pulse width
11/1994
11/22/1994US5366026 Impact type clamping apparatus
11/10/1994WO1994025911A1 Process and device for monitoring an adjusting movement of an adjuster operated by an electric adjusting drive
11/08/1994CA1332970C Nut runner control system and method of monitoring nut runners
10/1994
10/27/1994WO1994024621A1 Method of force control by disturbance load estimation
10/25/1994US5359269 Torque oscillation compensation using torque transducer feedback
10/13/1994DE4412051A1 Electric power steering device
07/1994
07/19/1994US5330423 Drive system
06/1994
06/01/1994EP0447393B1 Method and apparatus for controlling the torque of an engine
05/1994
05/25/1994EP0598386A2 Control apparatus and method for holding a workpiece in a machine tool
05/24/1994US5315501 Power tool compensator for torque overshoot
05/04/1994CN1086177A Closed loop launch and creep control for automatic clutch with robust algorithm
03/1994
03/17/1994WO1994005534A1 Method of establishing reference braking torques
03/10/1994DE4230101A1 Verfahren zur Einstellung von Sollbremsmomenten Method for setting target braking torques
03/09/1994EP0585845A2 Cutting-off control
03/08/1994CA1327640C Apparatus and method for determining torque presenting digital torque readout and automatic cycling and termination of wrench operation in a torque wrench system
03/02/1994EP0292575B1 Servo motor controller
03/02/1994EP0292574B1 Numerical controller
02/1994
02/08/1994US5284217 Apparatus for tightening threaded fasteners based upon a predetermined torque-angle specification window
02/03/1994DE4214354A1 Producing screw connection between two parts - measuring torque or angle of rotation until switch=off point is attained
01/1994
01/11/1994US5278775 Method of tightening threaded fasteners
01/11/1994US5277378 Numerically controlled tape takeup system having device for automatic calibration of conversion formula
01/04/1994US5275267 Closed loop launch and creep control for automatic clutch with robust algorithm
12/1993
12/23/1993DE4304779A1 Drive torque control for motor vehicle - monitors drive train operating condition and feeds signals to electronic controller to maintain correct condition
10/1993
10/27/1993EP0566741A1 Abnormal load detecting method
09/1993
09/30/1993DE4210273A1 Power driver, for nut running, with torque limiting function - uses comparison of motor load with preset reference as input to phase gate control circuit of motor
09/14/1993US5245265 System to control a motor for the assembly or dis-assembly of two members
07/1993
07/20/1993US5229931 Nut runner control system and method of monitoring nut runners
07/01/1993DE4243045A1 Controller form cold strip rolling system - matches stage roller forces, roller speed and strip tension to achieve constant strip thickness, with low axial force on strip
06/1993
06/08/1993US5216938 Control apparatus with fail-safe faculty
06/02/1993EP0544003A1 Method of servomotor control
06/01/1993US5216622 Ultrasonic drive/sense circuitry for automated fastener tightening
06/01/1993US5215270 Method for tightening a fastener
05/1993
05/25/1993US5212862 Torque-angle window control for threaded fasteners
05/16/1993CA2082974A1 Drive system
05/13/1993WO1993008958A1 Abnormal load detecting method
05/11/1993US5209203 Method and apparatus for controlling the torque of an engine
04/1993
04/14/1993EP0536933A2 Closed loop launch and creep control for automatic clutch
04/14/1993EP0536806A1 Device for measuring the torque of an armature movable by an actuator
03/1993
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
03/09/1993US5191953 Electronically controlled automatic transmission
02/1993
02/11/1993DE4126032A1 Motor-powered finishing machine esp. grinder, polisher or milling machine - has sensor unit for force and/or torque with sensor shaft coupled to drive shaft of drive mechanism
01/1993
01/26/1993US5181575 Impact wrench having torque controlling faculty
11/1992
11/26/1992WO1992021078A1 Method of servomotor control
11/25/1992EP0462967B1 Chlorine-resistant semipermeable membranes
10/1992
10/13/1992US5154242 Power tools with multi-stage tightening torque control
09/1992
09/09/1992EP0502748A1 Impact Wrench having Torque Controlling Faculty
09/09/1992EP0502451A1 Electronic torque wrench and overshoot compensation circuit therefor
09/05/1992CA2062215A1 Electronic torque wrench and overshoot compensation circuit therefor
07/1992
07/21/1992US5131130 Torque-angle window control for threaded fasteners
07/14/1992US5130700 Electronic torque wrench and overshoot compensation circuit therefor
06/1992
06/02/1992CA1302127C Method of and apparatus for controlling nut runner
04/1992
04/21/1992US5107213 Method and apparatus for signal evaluation of zero-axis crossings
04/21/1992US5105519 Tension control method for nutrunner
04/15/1992EP0480380A2 Torque-angle window control for threaded fasteners
11/1991
11/13/1991EP0455685A1 System to control a motor for the assembly or dis-assembly of two members.
11/13/1991EP0397675B1 Drive slippage control system
11/05/1991US5062491 Apparatus for controlling nut runner
10/1991
10/30/1991EP0453650A1 Ultrasonic drive/sense circuitry for automated fastener tightening
10/28/1991CA2032326A1 Ultrasonic drive/sense circuitry for automated fastener tightening
09/1991
09/25/1991EP0447393A1 Method and apparatus for controlling the torque of an engine.
09/19/1991WO1991014219A1 Process and device for controlling a motor-driven actuator
09/19/1991DE4008002A1 Verfahren und vorrichtung zur steuerung eines motorbetriebenen stellantriebes Method and device for controlling a motorized actuator
09/17/1991US5050082 System for controlling automotive automatic transmission
08/1991
08/14/1991EP0441769A2 Control device for an automobile
08/07/1991CN2082433U Device being able to control output speed and torque of electric drill simultaneosly
07/1991
07/24/1991CN1013298B Electric actuator for control valve
07/17/1991EP0436843A1 Reduction of relaxation induced tension scatter in fasteners
07/12/1991CA2007715A1 Method for controlling a chip refiner
06/1991
06/13/1991DE3940375A1 Effective inertial torque control for rotary mass - has drive system subjected to additional input torque to vary effective inertia
03/1991
03/19/1991CA1281796C Electric actuator for a control valve
02/1991
02/26/1991US4995145 Reduction of relaxation induced tension scatter in fasteners
02/26/1991US4995139 Torque control system for engine performance test machine for internal combustion engines
02/21/1991DE3927476A1 Drive torque and power measurement of electric motor - comprising drive train mechanical rotation frequency with motor stator field rotation frequency
02/13/1991EP0412684A1 Electromagnetic control apparatus for varying the driver steering effort of a hydraulic power steering system
02/12/1991US4992715 Torque control apparatus for rotating motor machine
01/1991
01/29/1991US4987669 Method of tightening screw
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