Endless belt power transmission systems or components – Pulley with belt-receiving groove formed by drive faces on... – Fluid pressure actuator for adjustment of member
Reexamination Certificate
2005-10-05
2008-11-04
Wright, Dirk (Department: 3681)
Endless belt power transmission systems or components
Pulley with belt-receiving groove formed by drive faces on...
Fluid pressure actuator for adjustment of member
Reexamination Certificate
active
07445572
ABSTRACT:
In hydraulic pressure control apparatus and method for a continuously variable transmission, a line pressure of the continuously variable transmission is developed with a working oil supplied from an oil pump as an original pressure, and a command pressure is set to develop a line pressure target value of the target value in such a manner that the command pressure is maintained at a predetermined small value for a constant time and, thereafter, the value of the command pressure is raised up to the target value when a shift range of the continuously variable transmission is switched from a neutral range to a running range, the command pressure being raised at a rate lower than a step input to suppress an overshoot developed in the actual line pressure.
REFERENCES:
patent: 6379278 (2002-04-01), Eguchi et al.
patent: 6736753 (2004-05-01), Endo et al.
patent: 6767309 (2004-07-01), Fujimoto et al.
patent: 6916269 (2005-07-01), Yamamoto et al.
patent: 6997831 (2006-02-01), Kanda et al.
patent: 7371204 (2008-05-01), Reuschel et al.
patent: 2004/0063523 (2004-04-01), Jozaki et al.
patent: 7-224914 (1995-08-01), None
patent: 8-210449 (1996-08-01), None
patent: 9-264411 (1997-10-01), None
patent: 2000-199562 (2000-07-01), None
patent: 2001-027316 (2001-01-01), None
patent: 2004-124959 (2004-04-01), None
Kodama Yoshihisa
Nobu Hisao
Wakida Kouhei
Yamaguchi Midori
Foley & Lardner LLP
JATCO Ltd
Wright Dirk
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