Invention Grant
US07862474B2 Speed change control device for automatic transmission and control method thereof
有权
用于自动变速器的变速控制装置及其控制方法
- Patent Title: Speed change control device for automatic transmission and control method thereof
- Patent Title (中): 用于自动变速器的变速控制装置及其控制方法
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Application No.: US11727706Application Date: 2007-03-28
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Publication No.: US07862474B2Publication Date: 2011-01-04
- Inventor: Yusuke Kimura , Atsufumi Kobayashi , Tatsuo Ochiai , Shuichi Wakabayashi , Akihiro Makiyama , Ryoji Kadono
- Applicant: Yusuke Kimura , Atsufumi Kobayashi , Tatsuo Ochiai , Shuichi Wakabayashi , Akihiro Makiyama , Ryoji Kadono
- Applicant Address: JP Fuji-shi JP Yokohama-shi
- Assignee: JATCO Ltd,Nissan Motor Co., Ltd.
- Current Assignee: JATCO Ltd,Nissan Motor Co., Ltd.
- Current Assignee Address: JP Fuji-shi JP Yokohama-shi
- Agency: Foley & Lardner LLP
- Priority: JP2006-090318 20060329
- Main IPC: F16H61/16
- IPC: F16H61/16
Abstract:
A speed change control device for an automatic transmission according to this invention determines whether or not a request to downshift a gear position of the transmission exists during traveling in a manual speed change mode (S1, S2), and calculates an input shaft rotation speed of the transmission following a downshift based on the downshift request (S4). When it is determined that the calculated rotation speed is higher than a rotation speed limit value (S5), the speed change control device performs a downshift to a gear position at which the input shaft rotation speed of the transmission is lower than the calculated rotation speed (S6, S8).
Public/Granted literature
- US20070232443A1 Speed change control device for automatic transmission and control method thereof Public/Granted day:2007-10-04
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