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:
Mar. 20, 2007
Filed:
Sep. 30, 2003
Masahiro Yamamoto, Kanagawa, JP;
Yoshihisa Kodama, Yokahama, JP;
Shigeki Shimanaka, Kanagawa, JP;
Katsumi Doihara, Kanagawa, JP;
Masahiro Yamamoto, Kanagawa, JP;
Yoshihisa Kodama, Yokahama, JP;
Shigeki Shimanaka, Kanagawa, JP;
Katsumi Doihara, Kanagawa, JP;
Jatco Ltd, Fuji, JP;
Abstract
A system for controlling a V-belt type CVT is constructed to change a first position of a step motor to a second position of the step motor corresponding to a second target shift ratio if it is determined that the primary-pulley pressure fails to reach a predetermined value. The second target shift ratio is on the high-speed side with respect to a third position of the step motor corresponding to a third target shift ratio to be achieved if it is determined that the primary-pulley pressure reaches the predetermined value.