Control system for a differential in a transmission

Details Control system for a differential in a transmission Control system for a differential in a transmission

2007-12-05

2010-11-09

Pang, Roger (Department: 3655)

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

C475S231000, C477S175000

Reexamination Certificate

active

07828684

ABSTRACT:
A control system for controlling an axle clutch between two half-axles in a motor vehicle is provided. The control system includes two solenoids and a pressure sensor in communication with a controller and a valve assembly. One of the solenoids provides a flow of fluid to engage the axle clutch. The valve assembly cooperates with another of the solenoids to disengage the axle clutch under certain conditions.

REFERENCES:
patent: 4679463 (1987-07-01), Ozaki et al.
patent: 7025706 (2006-04-01), Katou
patent: 7241247 (2007-07-01), Hunt et al.
patent: 7578765 (2009-08-01), Tabata et al.
patent: 2005/0003921 (2005-01-01), Morise et al.
patent: 2005/0107214 (2005-05-01), Koenig
patent: 2008/0216908 (2008-09-01), Vernacchia et al.
patent: 2008/0220939 (2008-09-01), Vernacchia et al.

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