Invention Grant
US08272288B2 Double-clutch transmission with a device for controlling a plurality of hydraulic shift cylinders
有权
具有用于控制多个液压变速缸的装置的双离合器变速器
- Patent Title: Double-clutch transmission with a device for controlling a plurality of hydraulic shift cylinders
- Patent Title (中): 具有用于控制多个液压变速缸的装置的双离合器变速器
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Application No.: US12220318Application Date: 2008-07-23
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Publication No.: US08272288B2Publication Date: 2012-09-25
- Inventor: Felix Dreher , Dietmar Lang , Martin Staudinger
- Applicant: Felix Dreher , Dietmar Lang , Martin Staudinger
- Applicant Address: DE Herzogenaurach
- Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee Address: DE Herzogenaurach
- Agent Alfred J. Mangels
- Priority: DE102007034200 20070723
- Main IPC: B60K3/00
- IPC: B60K3/00
Abstract:
A double-clutch transmission having at least three and preferably four, hydraulic shift cylinders, and a control device to actuate the hydraulic shift cylinders. To improve the speed of operation when selecting a gear, the shift cylinders needed for gear shifting are actuated with the aid of at least three electromagnetically shiftable directional valves.
Public/Granted literature
- US20090065322A1 Double-clutch transmission with a device for controlling a plurality of hydraulic shift cylinders Public/Granted day:2009-03-12
Information query
