Invention Grant
- Patent Title: Automatic transmission and learning method thereof
- Patent Title (中): 自动传输和学习方法
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Application No.: US12879302Application Date: 2010-09-10
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Publication No.: US08457850B2Publication Date: 2013-06-04
- Inventor: Yukiyoshi Inuta , Hideki Oshita , Morimasa Yamawaki , Kazuo Tomioka , Masayuki Mannen , Tatsuya Hayashi
- Applicant: Yukiyoshi Inuta , Hideki Oshita , Morimasa Yamawaki , Kazuo Tomioka , Masayuki Mannen , Tatsuya Hayashi
- Applicant Address: JP Fuji-shi
- Assignee: Jatco Ltd
- Current Assignee: Jatco Ltd
- Current Assignee Address: JP Fuji-shi
- Agency: Foley & Lardner LLP
- Priority: JP2009-216752 20090918
- Main IPC: G06F7/00
- IPC: G06F7/00 ; B60W10/02
Abstract:
When an inertia phase of an upshift of the transmission is started during a lockup clutch engagement operation, a following command oil pressure to be used during a following lockup clutch engagement operation is learned on the basis of a slip rotation speed, which is a rotation speed difference between an input side rotation speed of the torque converter and an output side rotation speed of the torque converter, at or after a start point of the inertia phase.
Public/Granted literature
- US20110071742A1 AUTOMATIC TRANSMISSION AND LEARNING METHOD THEREOF Public/Granted day:2011-03-24
Information query
