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. 18, 2011
Filed:
Aug. 06, 2008
Kinya Fujimoto, Hitachinaka, JP;
Yoshiyuki Yoshida, Hitachi, JP;
Tetsuo Matsumura, Hitachinaka, JP;
Masashi Seimiya, Hitachinaka, JP;
Kinya Fujimoto, Hitachinaka, JP;
Yoshiyuki Yoshida, Hitachi, JP;
Tetsuo Matsumura, Hitachinaka, JP;
Masashi Seimiya, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A shift control apparatus for an automatic transmission includes a pre-shift device that operates a predetermined synchromesh, based on a prediction by a predicting device. It thereby couples together a transmission input shaft (with a friction transfer mechanism that has not been used to effect a current gear position) and a transmission output shaft, through a predetermined gear train, and brings them into a standby state. The time when it is determined that the friction transfer mechanism that has not been used to effect of the current gear position has been disengaged is taken as the timing with which the synchromesh coupling operation by the standby control is started, regardless of the completion of the achievement of the current gear position.