Three mode selection mechanism for a selectable one way clutch assembly

A mode selector mechanism for moving a slide plate of a selectable one way clutch assembly between a first mode position, a second mode position and a third mode position, the mode selector mechanism comprising:

• a base;
• a lever slideably coupled to the base and moveable relative to the base between a first position configured for locating the slide plate in the first mode position, a second position configured for locating the slide plate in the second mode position, and a third position configured for locating the slide plate in the third mode position;
• a lever biasing device biasing the lever in a first direction;
• a piston acting in opposition against the lever biasing device for moving the lever in a second direction opposite the first direction, wherein the piston is actuated by a variable hydraulic signal;
• wherein the lever is disposed in the second position when the variable hydraulic signal includes a fluid pressure between a first fluid pressure and a second fluid pressure, the lever is disposed in the third position when the variable hydraulic signal includes a fluid pressure greater than the second fluid pressure, and the lever is disposed in the first position when the variable hydraulic signal includes a fluid pressure less than the first fluid pressures;
• a detent configured for engaging the lever and securing the lever in the second position when the variable hydraulic signal is between the first fluid pressure and the second fluid pressure;
• wherein the detent includes a rolling element for engaging an outer edge of the lever;
• and
• wherein the rolling element is rotatable relative to the outer edge of the lever during movement of the lever between the first position, the second position and the third position.

A mode selector mechanism for moving a slide plate of a selectable one way clutch assembly between a first mode position, a second mode position and a third mode position, the mode selector mechanism comprising:

• a base;
• a lever having a first end and a second end disposed opposite the first end along a longitudinal axis of the lever, wherein the lever includes an outer edge defining a notch and is slideably coupled to the base and moveable relative to the base between a first position configured for locating the slide plate in the first mode position, a second position configured for locating the slide plate in the second mode position, and a third position configured for locating the slide plate in the third mode position;
• a detent configured for engaging the notch in the outer edge of the lever to secure the lever in the second position when the variable hydraulic signal is between the first fluid pressure and the second fluid pressure, wherein the detent includes a rolling element for engaging the outer edge of the lever, with the rolling element rotatable relative to the outer edge of the lever during movement of the lever between the first position, the second position and the third position;
• a detent biasing device interconnecting the detent and the base, with the detent biasing device configured for biasing the detent against the outer edge of the lever;
• a lever biasing device disposed against and engaging the first end of the lever for biasing the lever in a first direction;
• and
• a piston disposed against and engaging the second end of the lever for acting in opposition against the lever biasing device to move the lever in a second direction opposite the first direction, wherein the piston is actuated by a variable hydraulic signal;
• wherein the lever is disposed in the second position when the variable hydraulic signal includes a fluid pressure between a first fluid pressure and a second fluid pressure, the lever is disposed in the third position when the variable hydraulic signal includes a fluid pressure greater than the second fluid pressure, and the lever is disposed in the first position when the variable hydraulic signal includes a fluid pressure less than the first fluid pressure;
• and
• wherein the detent engages the notch to secure the lever in the second position when the variable hydraulic signal is between the first fluid pressure and the second fluid pressure.