Machine element or mechanism – Gearing – Interchangeably locked
Reexamination Certificate
2008-12-16
2011-10-25
Pang, Roger (Department: 3655)
Machine element or mechanism
Gearing
Interchangeably locked
C074S336001, C701S064000
Reexamination Certificate
active
08042420
ABSTRACT:
A twin clutch type speed-change apparatus for detecting the engagement state of a dog clutch by use of the rotational speed difference between an inner main shaft and an outer main shaft and of a signal outputted from a gear position sensor. A rotational speed difference between an inner main shaft and an outer main shaft is detected by use of inner and outer rotational speed sensors. When the engagement of the dog clutch is to be released, it is judged to complete the release if the signal outputted from the gear position sensor indicates a speed step number after shifting and the rotational speed difference is zero. It is judged as a dog-tip caught state if the signal outputted from the gear position sensor indicates a speed step number before or after shifting and the rotational speed difference is a transmission gear ratio difference.
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Kanno Yoshihisa
Kojima Hiroyuki
Tsunashima Kousuke
Birch & Stewart Kolasch & Birch, LLP
Honda Motor Co. Ltd.
Pang Roger
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