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.:
Date of Patent:
Jul. 22, 2014
Filed:
Sep. 01, 2010
Yoichiro Shirai, Shinshiro, JP;
Masahiko Nagasaka, Shinshiro, JP;
Yoichiro Shirai, Shinshiro, JP;
Masahiko Nagasaka, Shinshiro, JP;
Sintokogio, Ltd., Nagoya-shi, JP;
Abstract
The invention realizes a method for controlling an electric cylinder and a control system for the cylinder that can prevent a load for pressurizing from significantly exceeding a target load and can shorten the time for the pressurization. A servo controllercan set the speed of the rodand a load for stopping Ps that is used for determining whether the rodshould be stopped so that the load for pressurizing Pm does not significantly exceed the target load Pt. The servo controllerdrives the rodunder the position control mode and determines whether the load for pressurizing Pm that is detected by a load detectoris bigger than or equal to the load for stopping Ps. If it determines that the load for pressurizing Pm is bigger than or equal to the load for stopping Ps, the servo controllerprovides a reverse command pulse signal to a servo amplifierand causes stored pulses in the servo amplifierto decrease, to thereby stop the rod at the load that does not significantly exceed a target load Pt.