An eight-speed automatic transmission having a compound planetary gear set,
a second planetary gear set, and a third planetary gear set each driven by
three clutches and fixed to four brakes. A hydraulic control system
actuates the eight-speed transmission by selectively energizing a
plurality of solenoids that in turn engage the three clutches and four
brakes. The hydraulic control system provides electronically modulated
converter clutch control to the eight-speed automatic transmission system
when the hydraulic system is in a drive position, a manual/low position,
and a park/neutral position.
