Patent ID: 8056690

Claim:
A selectable one-way clutch (SOWC assembly) for a vehicle comprising: a rotatable pocket plate; a rotatable notch plate; a rotatable slide plate having an axial knob portion, said slide plate being positioned between said pocket plate and said notch plate, wherein said axial knob portion is moveable between a first position and a second position to thereby select a corresponding first and second operating mode of the SOWC assembly; an annular piston having a ramped surface feature adapted to engage said knob portion of said slide plate when said annular piston is applied in a first axial direction, such that a rotation of said slide plate with respect to said ramped surface portion moves said axial knob portion to said second position to thereby select said second operating mode; and a biasing spring adapted to move said axial knob portion to said first position when said annular piston is released in a second axial direction to thereby select said first operating mode.