Dog Clutch Actuator and a Dog Clutch System Including the Same

Abstract

A dog clutch actuator includes: a pull sleeve mounted on a shaft and movable in an axial direction to push or pull a dog clutch moving portion movably connected to the shaft in the axial direction; a base plate movably mounted to the pull sleeve; wedge blocks mounted on and radially movable relative to the base plate; a shape memory alloy wire connecting the base plate and the wedge blocks and configured to contract and expand depending on whether electric power is supplied to move the wedge blocks; a slider that is movably mounted to the pull sleeve and having cam contact with the wedge blocks so as to push the dog clutch moving portion and that is disposed between the wedge blocks and the dog clutch moving portion; and at least one actuator spring that elastically connects the base plate and the slider.

Dependencies are inferred from the claim text.