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:
May. 24, 2005
Filed:
Apr. 16, 2003
David R. Sosnowski, Lake Orion, MI (US);
David R. Sosnowski, Lake Orion, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A method of calibrating a solenoid operated pressure control valve by sweeping the solenoid with increasing current from a minimum to a maximum and measuring and recording the signal pressure output and current at selected increments of current and storing the data pairs in a first table. The solenoid is similarly swept with decreasing current from the maximum to a minimum and the signal output pressure measured at selected increments of current and the data pairs stored in a second table. Upon installation of the valve in an hydraulic system to be controlled, the commanded signal pressure output P, if greater than the instantaneous signal pressure output Pis compared with the closest data pairs in the first table and, by interpolation, the required solenoid energization current Idetermined. If the commanded signal pressure output Pis less than the instantaneous signal pressure Pis compared with the closest data pair in the second table and, by interpolation, the required solenoid energization current Idetermined.