Borg-warner Automotive Gmbh

David C Mills

Howard Saxon

Bradley C Erickson

Ryan M True

Jerry A Sowik

A control module for a vehicle transmission. The control module includes an electronic transmission control unit attached to a cooling plate. Control solenoids are attached to the cooling plate. The cooling plate is operably secured over a &ldquo;worm trail&rdquo; manifold in a transmission for controlling the transmission.

Electro-hydraulic module for automatic transmission control

A solenoid operated control valve (10) including a housing (16) that defines an internal chamber (34) therein, where an electromagnetic coil (44) is coaxially mounted within the internal chamber (34). A tubular shaped movable armature (60) is positioned within the internal chamber (34). An armature spring (72) biases the armature (60) to a first position within the internal chamber (34) when the coil (44) is not energized, and the armature (60) moves to a second position against the bias of the spring (72) when the coil (44) is energized. The armature (60) contacts a first armature stop (76) when it is in the first position and contacts a second armature stop (92) when it is in the second position. Both the first and second armature stops (76, 92) include radially extended protrusions (100) in order to minimize hydraulic tension. A valve body (64) is disposed within a center bore (62) of the armature (60) and includes openings (122, 124) that align with a side aperture (106) in the armature (60) to control fluid pressure between a supply port (30), a control port (136), and an exhaust port (30).

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Clinton Township, MI, United States of America

David C Mills