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:
Oct. 05, 2010
Filed:
Oct. 02, 2006
Tetsuya Izumi, Yokohama, JP;
Hironori Nihei, Zama, JP;
Seonjae Kim, Seoul, KR;
Naohiro Hoshi, Okazaki, JP;
Kwang-ho Lee, Seoul, KR;
Tetsuya Izumi, Yokohama, JP;
Hironori Nihei, Zama, JP;
Seonjae Kim, Seoul, KR;
Naohiro Hoshi, Okazaki, JP;
Kwang-ho Lee, Seoul, KR;
JATCO Ltd, Fuji-shi, JP;
Abstract
A positional deviation ERRstep of a step motoris calculated on the basis of a reference model step StepMdl, an actual speed ratio-corresponding step Bstep, and an added value obtained by adding together a target deviation GTstep, calculated in accordance with a transmission input torque Ti, and a starting learned value Gstep. When the transmission input torque Ti is large, the target deviation GTstep is increased in accordance with the transmission input torque Ti. A line pressure PL is then controlled on the basis of the positional deviation ERRstep obtained as a result.