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WO/1998/003900A1 |
A servomotor control method by which, when the position of a mechanical movable part is controlled by fully-closed loop control, overshoot at the time of positioning the movable part is avoided. When the output P1 of a first acceleration...
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WO/1998/001796A1 |
A superposition control method which uses a numerical controller and with which the waiting is not necessary, the superposition can be started and canceled even in motion and, further, quick acceleration and quick deceleration can be avo...
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WO/1998/000334A1 |
The actuation system of the present invention is based upon sensing relatively small delta errors over relative short strokes as opposed to absolute travel error. An actuation system in accordance with the invention includes an actuator ...
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WO/1997/043703A1 |
A machine tool is controlled through a process incorporating the steps of measuring geometric and thermal errors (102) with accurate instruments, creating a global differential wet model of machine tool position (104) and using this mode...
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WO/1997/039216A1 |
A device for operating an adjusting drive uses a reference curve to determine a displacement between two predetermined positions and provide a basis for a data set selection (14).
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WO/1997/034206A1 |
A multi-rate, multi-head positioner (150) receives and processes unpanelized positioning commands to actuate slow stages (56, 58) and multiple fast stages (154) that are mounted on one of the slow stages to simultaneously position multip...
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WO/1997/032102A1 |
The invention concerns a variable drive with protection against jamming for movable parts, such as in particular windows and sliding roofs in motor vehicles. According to the invention, the number of revolutions or speed of the drive is ...
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WO/1997/031271A1 |
The invention concerns a device for precisely positioning a measuring probe along a probe axis (A) and in a circular manner relative to this axis. The device has a compact structure owing to the coaxial arrangement of the adjusting units...
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WO/1997/031270A1 |
The device is designed to position a measuring sensor, especially a sensor head at an angle to the sensor shaft, precisely at the point of measurement and in the direction of a fluid flowing in a test tube, in which there is an adjuster ...
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WO/1997/026681A1 |
The invention relates to a composite piezoelectric multilayer element of which, in operation, only a part is piezoelectrically active, and to a method of manufacturing such an element. In accordance with the invention, the piezoelectrica...
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WO/1997/023873A1 |
The drive system (210) comprises an electronically commutated motor (220) having three windings (225, 226 and 227). The motor (220) is energized by energizing means (270). The energizing means (270) are controlled by three Hall elements ...
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WO/1997/023028A1 |
The invention relates to an electrical synchronous linear motor comprising a secondary component which has a plurality of permanent magnets arranged in a particular pole grid and comprising a primary component which can be moved in relat...
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WO/1997/020260A1 |
A method of accurately estimating a disturbance load on a servomotor, even when a voltage is saturated. An effective current component Iq contributing to the torque generated by a servomotor is determined (Item 4) by carrying out DQ conv...
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WO/1997/015743A1 |
A temporarily holding device for temporarily holding an opening/closing body such as a sliding door for a vehicle in such a manner as to allow it to be moved from a halted state with a required operating force, comprising, in order not t...
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WO/1997/008599A1 |
A method for a switching control mode of a servo control system which reduces a shock generated when switching from a torque control mode to a position/velocity control mode, the method comprising the steps of, in a torque control mode, ...
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WO/1997/006362A1 |
An electrical actuator (11) comprises energizing means (29) for exerting an electromagnetic torque (TEM) on a rotor body (19) and a control unit (75) for controlling the angle of rotation ('phi'). The control unit (75) has a cascade cont...
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WO/1997/005000A1 |
An electromagnetic actuating device has a magnet coil (3) to which a control current can be applied and an armature (4) allocated to the magnet coil which is arranged to perform movements which depend on a control current flowing through...
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WO/1997/004512A1 |
A control system for controlling a plurality of electrical devices (6) the system including a central controller (2) for controlling functions of the devices, a network (4) coupled between the central controller (2) and the devices, the ...
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WO/1997/003386A1 |
A controlled system is preset as a controlled model having mechanical looseness between an actuator and a movable section. The value of a frequency weight function by which the sensitivity function expressing the target position follow-u...
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WO/1997/001805A1 |
A method of acceleration/deceleration control of a servomotor, which reduces errors resulting from a command delay due to a command time constant of an acceleration/deceleration filter. A movement command subjected to interpolation is pr...
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WO/1997/000760A1 |
An initial condition data is stored in a storage means (5) before a robot (10) is operated. Then, the robot (10) is started to be operated at a predetermined low speed. While the robot (10) is operated at this low speed and when a return...
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WO/1996/041409A1 |
A magnetic bearing apparatus and a method for providing at least one stabilizing force in a magnetic bearing structure with a superconducting magnetic assembly (12, 42, 82, 102) and a magnetic assembly (30, 60, 92, 112), by providing a s...
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WO/1996/039580A1 |
In order to disassemble and separate two parts, for example, on a spacecraft such as a satellite or a probe, the invention provides a single actuation push-button (10), driven by a unit (36) and disposed in a housing (12) between a wall ...
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WO/1996/035154A1 |
The invention relates to a process for the scanning detection of measurements and a scanning microscope for implementing the process with corresponding means. A measuring probe is moved in a scanning pattern and values are measured at th...
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WO/1996/033347A1 |
A double-acting hydraulic cylinder is controlled by a pair of three-way solenoid valves respectively fluid connected to the two ends of the cylinder and energized in parallel with a continuous stream of pulse width modulated (PWM) pulses...
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WO/1996/030896A1 |
A method and apparatus involving the application of an algorithm used for finding the time optimal trajectory for torque limited Industrial Robots, to achieve the operation of Cluster Tool Robots in an improved manner by modifying the ap...
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WO/1996/029634A1 |
A multi-rate positioner system (50) receives unpanelized positioning commands from a database storage subsystem (64), profiles the commands (72) into a half-sine positioning signal, and further processes the signal into a low-frequency p...
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WO/1996/026473A1 |
A method of adjustable-flexibility servo control, which provides software floating servo for the individual axes of an orthogonal coordinate system. A force (Fx, Fy, Fz) acting on the distal point of a tool on the orthogonal coordinate s...
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WO/1996/019836A1 |
A piezoelectrically actuated driving or adjusting element can be used to transmit both pure translation movements and rotation movements. The object of the invention is to develop a piezoelectrically actuated driving or adjusting element...
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WO/1996/016360A1 |
In the movement of objects, especially benches (11) or robot arms, on a programmed path, the object must be moved into a new position as fast and smoothly as possible. To this end, the control device of the invention has a compensating u...
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WO/1996/015131A1 |
This invention provides a process for producing a macrocyclic lactone compound, which comprises cultivating Actinoplanes sp. FERM BP-3832, in the presence of L-proline, L-hydroxyproline or L-nipecotic acid, and then isolating a macrocycl...
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WO/1996/013670A1 |
A mechanical control power transmission device including a driver stage (25) consisting of a low-capacity hydraulic linear slide valve (1) with two outlets connected via ducts (41, 42) to two chambers (39, 40) at the ends of a high-capac...
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WO/1996/012828A1 |
A pseudo-mechanical system in accordance with the invention comprises an electrical generator (1) which converts mechanical energy into electrical energy to power the resistive heating of an ohmic electromechanical component (5), whose c...
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WO/1996/007074A1 |
A fine positioning apparatus is provided which comprises inductive actuators (2, 3). A positioning accuracy of well below 1 nm is achieved compared to 1 'mu'm provided by known inductive actuators. In preferred embodiments, the motion of...
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WO/1996/005542A1 |
By the use of actuators, e.g., for servo controlled adjustment of movable parts of hospital beds, it is desirable to make use of a remote indication of the actuator positions or of adjustment to predetermined positions. The position of a...
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WO/1996/005543A1 |
A control system is disclosed for hydraulic drives, in particular hydraulic cylinders, in which the valve that controls the hydraulic medium flow paths between the drive, the hydraulic medium source and a tank may be controlled by an ele...
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WO/1996/000934A1 |
In a tandem control method in which one shaft is driven by a main motor and a submotor, the difference in speed between the main motor and submotor is calculated to obtain a corrective torque, and the corrective torque is added to the to...
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WO/1995/029433A1 |
A valve positioner (26) controls operation of a valve (32) in a process control system. The valve positioner (26) is coupled to a process control loop (24a, 24b) over which it receives a signal representative of a desired valve position ...
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WO/1995/028667A1 |
First and second robots (R1, R2) are placed apart from each other on a track (2) and caused to grab a component on supply conveyor lines (SP1, SP2) by hand at respective positions. Then, the robots (R1, R2) are moved to approach each oth...
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WO/1995/023496A1 |
A device for regulating the distance from the ground of a working unit of an agricultural machine is proposed which comprises a position sensor (11) and a pressure sensor (10) for detecting the position of the working unit (2) relative t...
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WO/1995/018272A1 |
A construction machine comprising a first boom (1) rotatably mounted on a vehicle frame, a second boom (4) rotatably mounted on said first boom, a first boom cylinder (2) for connecting said vehicle frame (3) to said second boom (4) and ...
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WO/1995/018271A1 |
A controller for working machines capable of controlling the moving of a tool continuously over a wide range, and capable of moving it accurately along a desired path. Out of not less than three control shafts (3a, 4a, 5a), a first combi...
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WO/1995/014241A1 |
A system for tracking a moving person or object with spotlights comprises at least one transponder (15), a plurality of receivers (1), a controller (7), and at least one spotlight (11). In response to a periodic signal from the controlle...
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WO/1995/008677A1 |
The present invention provides an apparatus (102) for controllably actuating a work implement. The work implement (104) includes at least a first linkage (106) and a second linkage (108). The apparatus (102) produces a control signal, se...
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WO/1995/006276A1 |
In this invention, a valve positioner (50) receives a setpoint from a master (62) and provides a control pressure to a valve actuator (70) for controlling a valve (72). A sensing circuit (102) in the positioner (50) senses the position o...
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WO/1995/005703A1 |
A method for controlling a servomotor when reversing the direction of a feed shaft of a machine tool using said servomotor including the steps of estimating a friction torque by providing disturbance torque estimating means for estimatin...
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WO/1995/002214A1 |
A method of controlling a servomotor by a control system having a position control loop and a speed control loop. The flexibility designated on the work coordinates at which the servomotors are located are converted into servo gains Kp a...
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WO/1995/001850A1 |
A welding robot control method for suitably setting a path to be followed by a welding robot when a tool point thereof passes a tack welded portion. A laser beam (S) from a laser sensor (4) supported on a robot arm (1) scans a region whi...
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WO/1994/029774A1 |
Method and device for calibration of a mobile object in a determined space by means of a video camera (20) or similar mounted on the mobile object (14), the camera (20) being positionable to sight targets (22) placed around the mobile ob...
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WO/1994/028473A1 |
The optimal time constants of the acceleration and deceleration of a servo motor are determined by the amount of movement, load, and others, thereby to shorten the operating time of a robot. A method for controlling the operation of a ro...
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