Invention Grant
US08443688B1 Method of learning an initial capacity point of a clutch in a dual clutch transmission
有权
学习双离合器变速器中的离合器的初始容量点的方法
- Patent Title: Method of learning an initial capacity point of a clutch in a dual clutch transmission
- Patent Title (中): 学习双离合器变速器中的离合器的初始容量点的方法
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Application No.: US13558656Application Date: 2012-07-26
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Publication No.: US08443688B1Publication Date: 2013-05-21
- Inventor: Matthew D. Whitton , Brandon E. Hancock
- Applicant: Matthew D. Whitton , Brandon E. Hancock
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: B60W10/02
- IPC: B60W10/02

Abstract:
A method of learning an initial capacity point of a clutch in a dual clutch transmission includes identifying when the dual clutch transmission is operating in a steady state gear condition with a first clutch continuously transmitting torque to a first shaft. When the dual clutch transmission is operating in a steady state gear condition, a second clutch is sequentially positioned in each of a plurality of application positions (Pn, Pn+1, Pn+2, . . . , Pn+i). The second clutch is configured to transmit torque to a second shaft. The second shaft is positioned in a geared state in each of the plurality of application positions. The first application position (Pn+i) in the sequence of application positions in which the second shaft is not successfully positioned in the geared state is defined as the initial capacity point of the second clutch.
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