Invention Grant
- Patent Title: Method of cooling a dual clutch transmission
- Patent Title (中): 冷却双离合器变速器的方法
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Application No.: US12892013Application Date: 2010-09-28
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Publication No.: US08634996B2Publication Date: 2014-01-21
- Inventor: Larry D. Diemer , Scott William Heitzenrater , James M. Partyka , Victor M. Roses
- Applicant: Larry D. Diemer , Scott William Heitzenrater , James M. Partyka , Victor M. Roses
- 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: G06F7/00
- IPC: G06F7/00

Abstract:
A method of cooling a dual clutch transmission is provided. The transmission has first and second input clutches alternately engagable to transfer torque to an output member along first and second input shafts, respectively, at various speed ratios dependent upon engagement of synchronizers. The method includes determining a currently established speed ratio by determining which of the input clutches and synchronizers are currently engaged and which of the input clutches and synchronizers are currently open. One of the open synchronizers is then engaged during the currently established speed ratio to cause the open input clutch to rotate at a speed greater than the speed of rotation of the engaged input clutch, thereby creating a fan cooling effect.
Public/Granted literature
- US20120078480A1 METHOD OF COOLING A DUAL CLUTCH TRANSMISSION Public/Granted day:2012-03-29
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