Invention Grant
- Patent Title: Control device of automatic transmission 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.: US14423148Application Date: 2013-07-08
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Publication No.: US09347553B2Publication Date: 2016-05-24
- Inventor: Katsuhiro Matsuo , Masami Suzuki , Hiroki Matsui
- Applicant: NISSAN MOTOR CO., LTD.
- Applicant Address: JP Yokohama-shi, Kanagawa
- Assignee: NISSAN MOTOR CO., LTD.
- Current Assignee: NISSAN MOTOR CO., LTD.
- Current Assignee Address: JP Yokohama-shi, Kanagawa
- Agency: Drinker Biddle & Reath LLP
- Priority: JP2012-191536 20120831
- International Application: PCT/JP2013/068630 WO 20130708
- International Announcement: WO2014/034280 WO 20140306
- Main IPC: G06F17/00
- IPC: G06F17/00 ; F16H61/12 ; F16H61/02 ; F16H59/72 ; F16D48/06 ; F16H59/40 ; F16H59/42 ; F16H59/14
Abstract:
A control device of an automatic transmission that controls the automatic transmission including a friction engagement element capable of continuously changing a transmission torque includes: a first heat load estimation unit configured to estimate a heat load state in the friction engagement element based on an indication value of the transmission torque; and an estimation stop unit configured to stop the estimation of the heat load state based on a state where the indication value of the transmission torque differs from an actual value of the transmission torque actually transmitted by the friction engagement element.
Public/Granted literature
- US20150226322A1 CONTROL DEVICE OF AUTOMATIC TRANSMISSION AND METHOD OF CONTROLLING AUTOMATIC TRANSMISSION Public/Granted day:2015-08-13
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