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:
Jun. 09, 2020
Filed:
Jul. 19, 2017
Jatco Ltd, Fuji-shi, Shizuoka, JP;
Soyoung Lee, Gwangmyeong-si, KR;
Hajime Tasaka, Seoul, KR;
Kokan Boku, Sagamihara, JP;
Kosuke Abe, Isehara, JP;
Tomoyuki Suwabe, Okazaki, JP;
JATCO LTD, Fuji-Shi, JP;
Abstract
Pressure regulation valve control device has line pressure regulation valve () having line pressure solenoid () and line pressure spool valve () and CVT control unit () controlling secondary pressure (Psec) by actuating the line pressure spool valve () by solenoid pressure (Psol) produced by controlling current command value (I) to the line pressure solenoid (). CVT control unit () has abnormality control unit (). The abnormality control unit () is configured to, when decrease in secondary pressure (Psec) is detected during travel, execute, during travel, abnormality control that increases solenoid pressure (Psol), supplied to line pressure spool valve () from line pressure solenoid (), more than solenoid pressure (Psol) of a time when the decrease in secondary pressure (Psec) is detected. With this, even when the decrease in the pressure is detected during travel, the decrease in the pressure is suppressed during travel while reducing influence on vehicle travel.