Patent attributes
A clutched joint module comprising an output member and an input member rotatable relative to each other about an axis of rotation; a primary actuator operable to apply a primary torque to rotate the output member about the axis of rotation; and a clutch mechanism operable between an engaged state and a disengaged state to facilitate application of the primary torque. The clutch mechanism can comprise a plurality of plates and an actuator operable to compress the plurality of plates to cause the clutch mechanism to function in the engaged state. The actuator can be a ball-ramp clutch device. A quasi-passive elastic actuator can be coupled to the input member and can be operable, via the clutch mechanism, to release stored energy to apply an augmented torque to assist rotation of the output member. Associated methods and systems are disclosed.