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JPS6261801B2 |
The dynamic performance of hydraulic apparatus including a fluid-operated actuator controlled by a servo-controller, is improved by providing phase lead compensation to the controller in response to movement of the movable element of the...
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JPS62292595A |
PURPOSE:To enhance the accuracy of steering angles, by computing a variation in angle for starting the neutral position recovery operation of a solenoid control valve in accordance with a detected steering angle, and by computing the ang...
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JPS62292901A |
PURPOSE:To ease the control over the amount of movement of a cylinder rod in a cylinder device for industrial machinery, by optically detecting the moving position of the cylinder rod in order to control the amount of movement. CONSTITUT...
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JPS62199507U |
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JPS62199506U |
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JPS62288705A |
PURPOSE:To increase stability of a control system, by perallelly providing two 0 rings spacing a required distance in the axial direction on the periphery of a piston and providing a fixed pressure chamber between the 0 rings to communic...
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JPS62196955U |
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JPS62190101U |
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JPS62190103U |
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JPS62187932U |
A vehicle seat assembly includes an actuator controlled by a three-position spool valve which is connected by an adjustable two-link linkage to the seat. The valve is directly responsive to the geometry of the linkage to urge the seat, r...
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JPS62274102A |
PURPOSE:To heighten an operating speed by regulating the air pressure in a drive-pressure chamber based on an air pressure signal whose pulse width is always modulated, and communicating the drive-pressure chamber with an air pressure so...
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JPS62274101A |
PURPOSE:To insure a fixed positioning precision without relation to the change of a load by using, as a position command signal, a signal which is a present position signal with a position-deviation-correction signal added to, when a pos...
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JPS62184202U |
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JPS6244263Y2 |
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JPS6254933B2 |
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JPS6253723B2 |
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JPS62246602A |
PURPOSE:To enhance the performance of the captioned motor, by connecting the tip ends of the rods of a plurality of air cylinders, and detecting the rotation of a crank shaft in order to input the data into a computer, thereby controllin...
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JPS62167906U |
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JPS6248082B2 |
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JPS6246723B2 |
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JPS62218676A |
PURPOSE: To reduce hysteresis following the movement of a spool by providing in the oil path of a pilot chamber, a resonance means for amplifying pulsation taking place in pilot oil so as to apply high frequency fluctuation pressure to t...
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JPS6243121B2 |
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JPS62204001A |
PURPOSE:To improve control stop precision by calculating an overrun quantity which exceeds moving target coordinates from a fixed formula and braking an air motor at a velocity below fixed velocity. CONSTITUTION:Residual migration length...
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JPS62196404A |
PURPOSE:To effectively prevent a shock generated at the starting time of an actuator of an agricultural tractor or the similar vehicle by processing an error between a target position to be moved to and a current position at said startin...
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JPS62196402A |
PURPOSE:To enable improvement of the operating precision of a hydraulic cylinder despite of simple construction thereof by forming a bottomed spool hole inside both a piston and a piston rod which are engaged inside a cylinder housing an...
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JPS62196405A |
PURPOSE:To improve the braking stop precision by calculating an air motor driving enumerated data on the bases of a current positional coordinates and a target movement position coordinates, compensating the enumerated data using the bra...
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JPS62136602U |
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JPS62136603U |
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JPS6240222B2 |
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JPS62194004A |
A power drive unit has a hydraulic motor 10 for use in controlling bi-directional movement of a member which can operate with either an opposing load or an aiding load. The power drive unit has a variable displacement hydraulic motor 10 ...
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JPS6239295B2 |
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JPS6238725B2 |
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JPS62188803A |
PURPOSE:To reliably accomplish onload and unload of pump liquid pressure by interposing a poppet type closing valve and circuit switching means in a passage connecting a spring chamber of a pressure compensating valve and a tank. CONSTIT...
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JPS62130202U |
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JPS62184203A |
PURPOSE:To heighten adaptability and flexibility by adding a positive feedback to the outside of a displacement feedback control system of a driving mechanism, and interlocking the gain of the above with gain of displacement set point ad...
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JPS62184202A |
PURPOSE:To keep favorable positioning accuracy by providing a feedback circuit with means for adjusting gain of displacement feedback means, interlocking with gain of set point adjusting means. CONSTITUTION:A displacement feedback gain s...
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JPS62184204A |
PURPOSE:To keep favorable positioning accuracy by detecting internal pressure in plural elastic tube structures and adjusting gain of set point adjusting means according to the pressure values. CONSTITUTION:Pressure detectors 9A, 9B are ...
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JPS62184205A |
PURPOSE:To keep favorable positioning accuracy by adjusting gain of displacement set point adjusting means and gain of rigidity setting means, interlocking with each other by the rigidity setting means. CONSTITUTION:There is provided rig...
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JPS62184201A |
PURPOSE:To improve the function of a load system by providing changeover switches for changing circuits from positioning operation to rigidity setting and feedback gain setting means in a feedback circuit. CONSTITUTION:A feedback circuit...
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JPS62126601U |
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JPS6237242B2 |
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JPS62180101A |
PURPOSE:To enable a biaxial action to be carried out so as to improve workability, by providing two orthogonally disposed pistons for a cylinder body, and enabling separate pressure oils to be supplied respectively at desired phases. CON...
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JPS62180102A |
An energy-conserving servo-actuator comprises at least one valve operatively associated with a double-acting, fluid-powered, actuator. When a load is applied to the double-acting actuator, the pressure in one chamber thereof will be high...
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JPS62122904U |
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JPS62177301A |
A tool, in particular a lapping wheel, is to be positioned by a hydraulic drive cylinder and subsequently pressed against a workpiece. For this purpose a position control and a pressure or force control is provided. The weight change of ...
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JPS62167905A |
The point at which pump out pressure exceeds load is sensed to provide a point for scheduling flow to an actuator in a hydraulic system. Flow is controlled by a stepper motor (28) that moves a flow control valve (27). The steps needed to...
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JPS62167902A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS62159801A |
PURPOSE:To enable a high-speed response by driving the threaded shaft of a stepping cylinder by means of a general purpose motor having a rotation control function. CONSTITUTION:A spool 3a is moved by rotation of a threaded shaft 4 insid...
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JPS6229642B2 |
A combined feedback control system for a servo actuator including a ram that produces a mechanical displacement output of the system as directed by a position command signal. In the combined feedback control system a lever arrangement me...
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JPS6291005U |
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