Patent ID: 8622186

Claim:
Apparatus for controlling a selectable one-way clutch (SOWC) in an automatic transmission, comprising: a ring-shaped control housing located substantially concentrically to the SOWC; an actuation mechanism included within the ring-shaped control housing and effective to actuate a single selector plate configured to control the SOWC in one of a default position and an actuation position, the SOWC partially engaged when in the default position and the SOWC fully engaged when in the actuation position; the single selector plate located between the ring-shaped control housing and the SOWC; a return mechanism including a biasing member configured to act on the single selector plate at a position on the housing that is diametrically opposed to a position of the actuation mechanism; a hydraulic fluid delivery system hydraulically communicating with the actuation mechanism to act on the single selector plate in concert with the return mechanism; the single selector plate configured to control the SOWC in the default position when hydraulic pressure communicated to the actuation mechanism is less than a force of the biasing member and the single selector plate configured to control the SOWC in the actuation position when the hydraulic pressure communicated to the actuation mechanism is greater than the force of the biasing member; the default position effecting operation of the SOWC locked in a first rotational direction and freewheeling in a second rotational direction opposite the first rotational direction; and the actuation position effecting operation of the SOWC locked in the first rotational direction and locked in the second rotational direction.