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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 5691894 B1

PDFFull Text
Date of Patent:
Nov. 25, 1997

Filed:

Nov. 29, 1995

Cylinder positioning control apparatus

Applicant:
Inventors:

Kenji Fukushima, Yawara-mura, JP;

Hitoshi Yamamoto, Yawara-mura, JP;

Nobuhiro Fujiwara, Yawara-mura, JP;

Hiroyuki Shimono, Yawara-mura, JP;

Assignee:

SMC Corporation, Tokyo, JP;

Attorney:

Brumbaugh, Graves, Donohue & Raymond

Primary Examiner:

Emanuel T Voeltz

Assistant Examiner:

Demetra R Smith

Int. Cl.
CPC ...
F01B / ; F01B / ; F15B / ;
U.S. Cl.
CPC ...
364148 ; 91361 ; 91196 ; 9117 / ; 91171 ;
Abstract

A cylinder positioning control apparatus designed to effect positioning of a cylinder by learning control that uses not only an overrun distance but also a cylinder speed as input data for control. The apparatus has a device for taking in a displacement x and speed V of a cylinder, a device for calculating a predicted overrun distance y.sub.i for the present drive from a predicted overrun distance y.sub.i-1 in the preceding drive, a cylinder speed V.sub.i-1 at the time of outputting a braking signal during the preceding drive, and a speed V.sub.i of the cylinder being driven, a device for judging whether or not a condition to be satisfied to output a braking signal is satisfied, and for outputting a braking signal when the condition is satisfied, a device for taking in a displacement x.sub.bp and speed V.sub.bp of the cylinder when the braking signal is output, a device for taking in a displacement x.sub.stop of the cylinder when it has stopped, and a device for calculating a predicted overrun distance y.sub.1-1 and a cylinder speed V.sub.i-1 at the time of outputting a braking signal, which are to be used in calculation for the subsequent drive, from the displacement x.sub.bp and speed V.sub.bp of the cylinder when the braking signal was output, and the displacement x.sub.stop of the cylinder stopped.

Find Patent Forward Citations

Fukushima, Kenji. (1997). Cylinder positioning control apparatus (U.S. Patent No. 5691894). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5691894

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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