Invention Grant
- Patent Title: Method for the operation of a drivetrain
- Patent Title (中): 传动系的运行方法
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Application No.: US11811426Application Date: 2007-06-07
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Publication No.: US07658693B2Publication Date: 2010-02-09
- Inventor: Klaus Steinhauser , Christian Popp
- Applicant: Klaus Steinhauser , Christian Popp
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Davis & Bujold, P.L.L.C.
- Priority: DE102006026601 20060608
- Main IPC: F16H31/00
- IPC: F16H31/00 ; B60W10/04

Abstract:
A method for the operation of a drivetrain of a motor vehicle, having an automatic transmission and a drive motor, to improve the shift speed. Successive upshifts or successive downshifts are carried out with overlap during a first upshift or downshift. At least one shift element required for a subsequent second upshift or downshift is prepared during the first upshift or downshift, in progress, when a synchronization point is reached. The subsequent second upshift or downshift are carried out immediately. Two successive upshifts or two successive downshifts are carried out by actuation of four shift elements of the automatic transmission.
Public/Granted literature
- US20070287584A1 Method for the operation of a drivetrain Public/Granted day:2007-12-13
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