Automatic transmission
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United States of America Patent
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Aug 6, 2002
Grant Date -
N/A
app pub date -
Feb 17, 2000
filing date -
Feb 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic transmission, especially for a motor vehicle, having a plurality of torque transmission paths which can be selectively activated for torque transmission. The torque transmission paths have different transmission characteristics and, based on their transmission characteristics, can be ordered in a sequence of torque transmission paths has a clutch arrangement by which at least one of the torque transmission paths can be activated. It is provided that the clutch arrangement has a clutch unit which is associated with a group of torque transmission paths and by which a torque transmission path of a group of torque transmission paths can be selectively activated. A plurality of groups of torque transmission paths are provided, each group having only one individual torque transmission path, or a plurality of groups of torque transmission paths are provided, at least one group having a plurality of torque transmission paths, or a plurality of groups of torque transmission paths are provided, at least one group having an individual torque transmission path and at least one additional group having a plurality of torque transmission paths. At least one group of torque transmission paths, insofar as it includes a plurality of torque transmission paths, has only torque transmission paths which do not immediately follow one another in sequence.
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