Method for controlling a drivetrain in a motor vehicle

Details Method for controlling a drivetrain in a motor vehicle Method for controlling a drivetrain in a motor vehicle

2007-07-24

2007-07-24

Rodriguez, Saul (Department: 3681)

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

C477S107000

Reexamination Certificate

active

10522363

ABSTRACT:
A method for controlling a drivetrain (1) in a motor vehicle is disclosed, in particular in an off-road vehicle with a drive unit (2), a multi-group transmission (4) and an output. The multi-group transmission (4) comprises at least an automatic gearbox (8) and a subsequent range transfer box (9) which may be switched by means of switching elements (24, 25). On changing the ratio in the range transfer box (9), a synchronisation of the switching element (24or25), for switching in the range transfer box (9), is carried out by means of a controller of switching elements in the automatic gearbox (8).

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