Invention Grant
- Patent Title: Automatic transmission control device and method of controlling automatic transmission
- Patent Title (中): 自动变速器控制装置及自动变速箱控制方法
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Application No.: US12205223Application Date: 2008-09-05
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Publication No.: US07987956B2Publication Date: 2011-08-02
- Inventor: Kohei Dodo
- Applicant: Kohei Dodo
- Applicant Address: JP Aichi-ken
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-232798 20070907
- Main IPC: F16H61/00
- IPC: F16H61/00 ; F16D43/284 ; F16D25/12
Abstract:
A transmission ECU calculates a differential rotation, which is the rotational speed difference between a friction plate and a separator plate, when it is determined that a second brake is not engaged. If it is determined that the differential rotation is equal to or above a predetermined value, the transmission ECU narrows the pack clearance of the second brake. If it is determined that the differential rotation is less than the predetermined value, the transmission ECU widens the pack clearance of the second brake.
Public/Granted literature
- US20090065321A1 AUTOMATIC TRANSMISSION CONTROL DEVICE AND METHOD OF CONTROLLING AUTOMATIC TRANSMISSION Public/Granted day:2009-03-12
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