Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2007-08-20
2011-12-13
Badii, Behrang (Department: 3667)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C477S150000, C477S117000, C477S158000, C701S058000, C701S062000, C701S055000
Reexamination Certificate
active
08078370
ABSTRACT:
A hydraulic or pneumatic control device for an automated shift transmission including actuating devices with actuating cylinders (15, 16) having pressure spaces (19a, 19b; 20a, 20b). The pressure spaces (19a, 19b; 20a, 20b) of the actuating cylinders (15, 16) can be connected by a respective control valve (22a, 22b; 32a, 32b) to a pressure line (26), which can be selectively connected to or cut off from a main pressure line (8) by a main shut-off valve (45a). At least one additional main shut-off valve (45b) is arranged in parallel with the first main shut-off valve (45a) between the main pressure line (8) and the pressure line (26) to improve the control characteristics and increase the operational reliability.
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Deeg Markus
Petzold Rainer
Roether Friedbert
Steinborn Mario
Badii Behrang
Davis & Bujold P.L.L.C.
ZF Friedrichshafen AG
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