Invention Grant
US08489295B2 Up-shift control in an automatic transmission with negative input torque
有权
具有负输入转矩的自动变速器中的上变速控制
- Patent Title: Up-shift control in an automatic transmission with negative input torque
- Patent Title (中): 具有负输入转矩的自动变速器中的上变速控制
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Application No.: US12335900Application Date: 2008-12-16
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Publication No.: US08489295B2Publication Date: 2013-07-16
- Inventor: Kevin L. Kluemper , Brett R. Caldwell , Jeffrey K. Runde , Robert M. Merrion
- Applicant: Kevin L. Kluemper , Brett R. Caldwell , Jeffrey K. Runde , Robert M. Merrion
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/00 ; G06F19/00
Abstract:
A transmission control module including a shift control module that generates an enable signal when an up-shift is requested and the engine torque is below a threshold torque value. A turbine speed profile determination module that selectively generates a desired turbine speed profile. The shift control module controls a clutch pressure of an off-going clutch based on a measured turbine speed and the desired turbine speed profile when the enable signal is generated.
Public/Granted literature
- US20090319143A1 UP-SHIFT CONTROL IN AN AUTOMATIC TRANSMISSION WITH NEGATIVE INPUT TORQUE Public/Granted day:2009-12-24
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