A transmission control unit for a wedge clutch, comprising a controller configured to send one or more signals to a switch connected to the wedge clutch, the switch being configured to demagnetize the wedge clutch by sending current in a first direction to a coil of the wedge clutch.

A transmission control unit for a wedge clutch, comprising a controller configured to send one or more signals to a switch connected to the wedge clutch, the switch being configured to demagnetize the wedge clutch by sending current in a first direction to a coil of the wedge clutch.

An end effector is disclosed for use with a surgical robotic manipulator and a cutting accessory. The end effector comprises a nose tube for receiving the cutting accessory and an actuator for driving the cutting accessory. The end effector may also comprise a mounting fixture for coupling the end effector to the surgical robotic manipulator and a handle for gripping by the user. The handle may be coupled to the nose tube and configured to rotate about the axis of the nose tube. The end effector may also comprise a lever coupled to the handle and moveable between depressed and released positions. The end effector may further comprise an activator coupled to the lever and configured to interact with a sensor for sensing the position of the lever.

An end effector is disclosed for use with a surgical robotic manipulator and a cutting accessory. The end effector comprises a nose tube for receiving the cutting accessory and an actuator for driving the cutting accessory. The end effector may also comprise a mounting fixture for coupling the end effector to the surgical robotic manipulator and a handle for gripping by the user. The handle may be coupled to the nose tube and configured to rotate about the axis of the nose tube. The end effector may also comprise a lever coupled to the handle and moveable between depressed and released positions. The end effector may further comprise an activator coupled to the lever and configured to interact with a sensor for sensing the position of the lever.

A power actuation system for a motor vehicle closure panel includes a motor configured to rotate an input gear member that is configured to rotate an output gear member. The output gear member being coupled with a lever that is coupled to the closure panel. A clutch assembly configured for movement between a lever driving position whereat the lever is caused to pivot in response to rotation of the input gear member and a lever releasing position whereat the lever can pivot independent of the input gear member. The clutch assembly being biased into the lever driving position and having at least one roller configured to move out of a detent of the clutch assembly to move the clutch assembly from the lever driving position to the lever releasing position in response to a force applied to the closure panel.

A power actuation system for a motor vehicle closure panel includes a motor configured to rotate an input gear member that is configured to rotate an output gear member. The output gear member being coupled with a lever that is coupled to the closure panel. A clutch assembly configured for movement between a lever driving position whereat the lever is caused to pivot in response to rotation of the input gear member and a lever releasing position whereat the lever can pivot independent of the input gear member. The clutch assembly being biased into the lever driving position and having at least one roller configured to move out of a detent of the clutch assembly to move the clutch assembly from the lever driving position to the lever releasing position in response to a force applied to the closure panel.

A clutch unit includes: a first housing which is provided with a groove recessed inwards; a second housing which is inserted to the groove of the first housing and is provided with one or more arc portions to protrude along a circumference thereof on one surface thereof; one or more first roller portions which are positioned between the first arc portions; and a first rotation transfer portion which is inserted to the second housing and is rotated in accordance with rotation of a motor, wherein rotation of the first housing is controlled by the first rotation transfer portion and the first housing is not rotatable by external force when the first housing is attached to the first roller portions, and is freely rotatable by external force when the first housing is detached from the first roller portions.

A clutch unit includes: a first housing which is provided with a groove recessed inwards; a second housing which is inserted to the groove of the first housing and is provided with one or more arc portions to protrude along a circumference thereof on one surface thereof; one or more first roller portions which are positioned between the first arc portions; and a first rotation transfer portion which is inserted to the second housing and is rotated in accordance with rotation of a motor, wherein rotation of the first housing is controlled by the first rotation transfer portion and the first housing is not rotatable by external force when the first housing is attached to the first roller portions, and is freely rotatable by external force when the first housing is detached from the first roller portions.

A three-mode clutch, including: an inner ring; an outer ring including a pocket; a cage radially disposed between the inner and outer rings, rotatable with respect to the outer ring, and including a ramp sloping radially inwardly; and a pawl including a portion disposed in the pocket. In a locked mode of the clutch, the ramp is in contact with the pawl and the inner and outer rings are non-rotatably connected. In a one-way mode of the clutch, the cage is in contact with the pawl and relative rotation of the inner ring with respect to the outer ring is enabled only in a first rotational direction. In a freewheel mode of the clutch, the ramp is in contact with the pawl and the inner ring is rotatable with respect to the outer ring in the first rotational direction and in a second rotational direction opposite the first rotational direction.

A clutch unit, which transmits an operational force input to an operating lever to an output shaft member via an input-side clutch and an output-side clutch and outputs the operational force to a vehicle seat, includes a rotation suppressing member is provided which applies a rotational resistance force larger than a co-rotating force to between an input-side outer-ring member and a housing which is not rotated at a time of the returning operation of the operating lever, so as to suppress that the input-side outer-ring member is co-rotated by an input-side inner-ring member of the input-side clutch at the time of the returning operation of the operating lever.