Motor vehicles – Having four wheels driven – Including separate mechanical assemblies for transmitting...
Reexamination Certificate
2004-11-24
2009-08-18
Ellis, Christopher P (Department: 3611)
Motor vehicles
Having four wheels driven
Including separate mechanical assemblies for transmitting...
C701S051000
Reexamination Certificate
active
07575084
ABSTRACT:
An automobile is equipped with a gear type transmission having a first torque transfer path between input and output shafts formed by mesh type clutches and a second torque transfer path between input and output shafts formed by transfer torque variable systems, and actuators for selecting the torque transfer path. When a wheel slips while the automobile is driving using the first torque transfer path, the actuators are controlled so that at least part of the torque being transferred via the first torque transfer path is instead transferred via the second torque transfer path.
REFERENCES:
patent: 4848508 (1989-07-01), Smirl et al.
patent: 7080707 (2006-07-01), Kirkwood
patent: 2-305333 (1990-12-01), None
Fujimoto Kinya
Kuroiwa Hiroshi
Matsumura Tetsuo
Ozaki Naoyuki
Crowell & Moring LLP
Ellis Christopher P
Hitachi , Ltd.
Scharich Marc A
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