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:
Jan. 29, 2002
Filed:
Apr. 27, 2000
Applicant:
Inventors:
James C. Potter, Novi, MI (US);
Larry P. Bennett, Franklin, MI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 1/3044 ;
U.S. Cl.
CPC ...
F15B 1/3044 ;
Abstract
A self-calibrating method and system for controlling a hydraulically operated device, such as a clutch actuator in an automatic power transmission, provides a pressure switch in the hydraulic circuit that provides feed-back to the controller when the hydraulic fluid pressure has reached a set point level. Pressure switch provides a signal to controller that allows the controller to compare the control signal at the pressure set point level with that of the calibrated curve for adjusting the calibration curve.