Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Reexamination Certificate
2006-07-25
2006-07-25
Ho, Ha (Department: 3681)
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
C477S135000
Reexamination Certificate
active
07081068
ABSTRACT:
A transmission system for a work vehicle, which is capable of reliably mitigating, with relatively simple arrangement, shocks caused by speed changes even in a work vehicle such as a bulldozer in which almost all operations are performed with the engine operating at full load. In the transmission system which converts the output torque of an engine into torque according to work load by operations for shifting speed gears through disengagement/engagement of friction clutches, if a downshift from a higher speed gear to a lower speed gear is effected while the engine operating at full load, the friction clutch controlling valves, controller and friction clutches allows the friction clutch corresponding to the higher speed gear to slide so as to enable power transmission and the engine controlling fuel injection system and controller allows the engine to perform high power operation (overload operation) during the sliding of the friction clutch.
REFERENCES:
patent: 5505670 (1996-04-01), Inuzuka et al.
patent: 5976055 (1999-11-01), Sasaki
patent: 6066072 (2000-05-01), Adachi
patent: 6319170 (2001-11-01), Hubbard et al.
patent: 6554741 (2003-04-01), Saito
patent: 6656087 (2003-12-01), Runde et al.
patent: 05-229368 (1993-09-01), None
patent: 6-94119 (1994-04-01), None
patent: 10-141487 (1998-05-01), None
patent: 2002-188713 (2002-07-01), None
Nakagawa Tomohiro
Okada Toshikazu
Yamamoto Shigeru
Ho Ha
Komatsu Ltd.
Rader & Fishman & Grauer, PLLC
LandOfFree
Transmission system for work vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission system for work vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission system for work vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3561385