Invention Grant
US08255135B2 Control method of shifting gear in an automatic manual transmission having a twin-clutch gearbox
有权
具有双离合器变速箱的自动手动变速器中的变速齿轮的控制方法
- Patent Title: Control method of shifting gear in an automatic manual transmission having a twin-clutch gearbox
- Patent Title (中): 具有双离合器变速箱的自动手动变速器中的变速齿轮的控制方法
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Application No.: US12755274Application Date: 2010-04-06
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Publication No.: US08255135B2Publication Date: 2012-08-28
- Inventor: Francesco Marcigliano , Davide Montosi
- Applicant: Francesco Marcigliano , Davide Montosi
- Applicant Address: IT
- Assignee: Ferrari S.p.A.
- Current Assignee: Ferrari S.p.A.
- Current Assignee Address: IT
- Agency: Schwegman, Lundberg & Woessner, P.A.
- Priority: ITB02009A0222 20090406
- Main IPC: G06F17/00
- IPC: G06F17/00 ; B60W10/00

Abstract:
A control method of shifting gear in an automatic manual transmission having a twin-clutch gearbox to pass from a current gear to a successive gear, the control method including the steps of receiving a command of gear shifting, opening a first clutch associated with current gear, closing a second clutch which is associated with successive gear and starts transmitting a torque after a delay time interval from the start of the closing, and starting the opening of first clutch, thus decreasing the torque transmitted by first clutch itself before second clutch starts transmitting a torque, such that first clutch decreases the torque transmitted to the driving wheels before the second clutch starts transmitting a torque to the driving wheels.
Public/Granted literature
- US20110087412A1 CONTROL METHOD OF SHIFTING GEAR IN AN AUTOMATIC MANUAL TRANSMISSION HAVING A TWIN-CLUTCH GEARBOX Public/Granted day:2011-04-14
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