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:
Nov. 14, 2017
Filed:
Jun. 02, 2015
Denso Corporation, Kariya, Aichi-pref., JP;
Ryo Ishibashi, Kariya, JP;
Akira Takagi, Obu, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
In a method for setting a command-response characteristic of an oil pressure control apparatus for each oil temperature, the command-response characteristic actually measured at a reference oil temperature is treated as a reference I-P characteristic. Then, a stroke-response characteristic is calculated based on the reference I-P characteristic, a thrust-force correlation and a restoring-force correlation. An overlapping length and a clearance width of overlapping areas between a sleeve and a spool of the oil pressure control apparatus are estimated based on the reference I-P characteristic and the stroke-response characteristic. Finally, the command-response characteristics for each oil temperature are decided and set based on the overlapping length and the clearance width.