Invention Grant
US07993241B2 Method for controlling an upshift process in a dual-clutch gearbox
有权
用于控制双离合器变速箱中的升档过程的方法
- Patent Title: Method for controlling an upshift process in a dual-clutch gearbox
- Patent Title (中): 用于控制双离合器变速箱中的升档过程的方法
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Application No.: US12691548Application Date: 2010-01-21
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Publication No.: US07993241B2Publication Date: 2011-08-09
- Inventor: Reinhard Schaarschmidt , Joachim Buerkle , Mathias Himmelsbach , Roland Pfister , Oliver Ottinger , Andreas Schaefer , Uwe Leibbrand , Raphael Ahne , Tobias Kalisch
- Applicant: Reinhard Schaarschmidt , Joachim Buerkle , Mathias Himmelsbach , Roland Pfister , Oliver Ottinger , Andreas Schaefer , Uwe Leibbrand , Raphael Ahne , Tobias Kalisch
- Applicant Address: DE Untergruppenbach
- Assignee: GETRAG Getriebe-und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG
- Current Assignee: GETRAG Getriebe-und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG
- Current Assignee Address: DE Untergruppenbach
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: DE102007036545 20070726
- Main IPC: B60W10/02
- IPC: B60W10/02

Abstract:
A method for controlling shift process in dual-clutch gearbox having dual-clutch gearbox input shaft connected to a drive engine, having two friction clutches and two partial gearboxes, comprising detecting demand for a shift from source gear into target gear, the source gear and target gear assigned to first partial gearbox; opening friction clutch assigned to first partial gearbox and closing friction clutch assigned to other partial gearbox to transmit drive power via intermediate gear of other partial gearbox; disengaging source gear and temporarily conducting a pressure-exertion process in friction clutch assigned to the first partial gearbox before engagement of target gear, with rotational speed of first partial gearbox being reduced due to the pressure-exerting operation according to drag torque, opening friction clutch assigned to other partial gearbox and closing friction clutch assigned to first partial gearbox to transfer drive power to the target gear without an interruption in tractive force.
Public/Granted literature
- US20100184561A1 METHOD FOR CONTROLLING AN UPSHIFT PROCESS IN A DUAL-CLUTCH GEARBOX Public/Granted day:2010-07-22
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