Invention Grant
- Patent Title: Hydraulic control systems for dual clutch transmissions
- Patent Title (中): 双离合器变速箱液压控制系统
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Application No.: US12685489Application Date: 2010-01-11
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Publication No.: US08402855B2Publication Date: 2013-03-26
- Inventor: Philip C. Lundberg , Bret M. Olson
- Applicant: Philip C. Lundberg , Bret M. Olson
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F16H59/00
- IPC: F16H59/00

Abstract:
Hydraulic control systems for a dual clutch transmission include a regulated source of pressurized hydraulic fluid including an electric pump, a filter and an accumulator, a pair of pressure control valves and a branching hydraulic circuit including pressure or flow control valves, spool or logic valves and two position valves which collectively supply and exhaust hydraulic fluid from a plurality of shift actuators. The actuators are connected to shift rails which include shift forks and are slidable to engage synchronizers and positive clutches associated with the various gear ratios.
Public/Granted literature
- US20110168510A1 HYDRAULIC CONTROL SYSTEMS FOR DUAL CLUTCH TRANSMISSIONS Public/Granted day:2011-07-14
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