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. 17, 2009
Filed:
Aug. 04, 2006
Kentaro Shishido, Chiyoda-ku, JP;
Hiroshi Kuroiwa, Hitachinaka, JP;
Yoshiyuki Yoshida, Chiyoda-ku, JP;
Tetsuo Matsumura, Chiyoda-ku, JP;
Kinya Fujimoto, Chiyoda-ku, JP;
Kentaro Shishido, Chiyoda-ku, JP;
Hiroshi Kuroiwa, Hitachinaka, JP;
Yoshiyuki Yoshida, Chiyoda-ku, JP;
Tetsuo Matsumura, Chiyoda-ku, JP;
Kinya Fujimoto, Chiyoda-ku, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a torque assisted automated MT, an assist clutch is controlled to ensure that the transmission torque increase rate is reduced when disengaging a dog clutch while engaging the assist clutch. In a twin clutch type automated MT, in stepped speed change, one of the two clutches as the twin clutch is controlled in such a way that the transmission torque increase rate resulting from engagement is reduced with the passage of time, when disengaging the dog clutch prior to speed change while engaging the clutch corresponding to the input shaft in charge of offsetting the torque interruption.