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:
Aug. 26, 2008
Filed:
Sep. 11, 2003
Mitsuhiro Nishina, Ageo, JP;
Yuji Suzuki, Ageo, JP;
Hideaki Gouda, Ageo, JP;
Nissan Diesel Motor Co., Ltd., Saitama, JP;
Abstract
In a hybrid-drive electric vehicle, upon request of gear shifting of a transmission (), a clutch () is first disconnected and the transmission () is set to a neutral position. The rotating electric generatoris then operated in a motor mode or a power generating mode so that a rotational speed of an input shaft of the transmission () reaches a region of a synchronizing rotational speed in accordance with a requested gear position. When the rotational speed of the input shaft of the transmission () reaches the region of the synchronizing rotational speed, the gear position of the transmission () is changed over from the neutral position to the requested gear position. Thus the rotation synchronizing time for the gear shifting in the transmission () is reduced, making it possible to perform the gear shifting for a short period of time.