发明名称 Hydraulic or pneumatic control of an automated shift transmission
摘要 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.
申请公布号 US8078370(B2) 申请公布日期 2011.12.13
申请号 US20070438278 申请日期 2007.08.20
申请人 PETZOLD RAINER;STEINBORN MARIO;DEEG MARKUS;ROETHER FRIEDBERT;ZF FRIEDRICHSHAFEN AG 发明人 PETZOLD RAINER;STEINBORN MARIO;DEEG MARKUS;ROETHER FRIEDBERT
分类号 G06F19/00;F16H61/12 主分类号 G06F19/00
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