Vehicle transmission system

Details Vehicle transmission system Vehicle transmission system

2008-10-30

2011-11-01

Le, David D (Department: 3655)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C074S335000

Reexamination Certificate

active

08050827

ABSTRACT:
A vehicle has an engine, an accelerator for controlling the rotary speed of the engine, an axle and a multi-speed transmission for transmitting power from the engine to the axle. The multi-speed transmission includes an odd-numbered speed drive train for an odd-numbered speed level, a first clutch for the odd-numbered speed drive train, an even-numbered speed drive train for an even-numbered speed level, and a second clutch for the even-numbered speed drive train. In correspondence to operation of the accelerator and an actual speed of the axle, either the odd-numbered speed drive train or the even-numbered speed drive train is selected so as to transmit power from the engine to the axle. A shift-up or shift-down timing between the odd-numbered speed level and the even-numbered speed level relative to variation of the actual speed of the axle is changed according to detection of a tilt angle of the vehicle or a weight of the vehicle.

REFERENCES:
patent: 4485687 (1984-12-01), Burke et al.
patent: 5079965 (1992-01-01), Leber et al.
patent: 5385064 (1995-01-01), Reece
patent: 5390560 (1995-02-01), Ordo
patent: 5599247 (1997-02-01), Matsufuji
patent: 5890392 (1999-04-01), Ludanek et al.
patent: 6086510 (2000-07-01), Kadota
patent: 6345224 (2002-02-01), Schumacher et al.
patent: 6793604 (2004-09-01), Kobayashi
patent: 6932735 (2005-08-01), Kao et al.
patent: 7066043 (2006-06-01), Kim et al.
patent: 7080567 (2006-07-01), Hatakeyama
patent: 7127961 (2006-10-01), Bradford et al.
patent: 7225696 (2007-06-01), Gitt
patent: 7529607 (2009-05-01), Aubert
patent: 2003/0226416 (2003-12-01), Umemoto et al.
patent: 2005/0000307 (2005-01-01), Gumpoltsberger
patent: 2006/0293149 (2006-12-01), Landes
patent: 0029711 (1981-06-01), None
patent: 2000038042 (2000-02-01), None
U.S. Appl. No. 12/562,551, Hasegawa et al., “Vehicle,” filed Sep. 18, 2009.

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