Abstract: An electric driving apparatus includes: a housing; an electric machine comprising a motor shaft rotatably supported by the housing; a speed shifting unit for reducing a rotation speed of a rotational driving force of the motor shaft; and a double clutch unit configured to selectively rotationally drive a pair of output shafts by receiving rotational driving force of the speed shifting unit. The speed shifting unit includes: an input gear receiving the rotational driving force of the motor shaft; a speed shifting shaft rotatably supported by the housing; an output gear provided on the speed shifting shaft to rotate together with the speed shifting shaft; and a clutch unit operative to selectively achieve a rotationally constrained engagement between the input gear and the speed shifting shaft.

Abstract: An electric driving apparatus according to an embodiment of the present invention includes: a housing; an electric machine comprising a motor shaft rotatably supported by the housing; a first speed reduction portion comprising a first speed shifting shaft capable of being rotationally driven by the motor shaft and configured to shift and transmit a rotational driving force of the motor shaft at a predetermined first speed shifting ratio; a second speed reduction portion comprising a second speed shifting shaft capable of being rotationally driven by the motor shaft and configured to shift and transmit the rotational driving force of the motor shaft at a predetermined second speed shifting ratio; and a double clutch unit configured to receive the rotational driving force of the first speed shifting shaft or the second speed shifting shaft and is configured to selectively rotationally drive at least one of a first output shaft and a second output shaft by the transmitted rotational driving force.

Abstract: An electric driving apparatus includes: a housing; an electric machine; a speed shifting unit; and a double clutch unit. The double clutch unit includes: a clutch housing; a first clutch hub and a second clutch hub; a first clutch plate package; and a second clutch plate package. The speed shifting unit comprises a first output gear and a second output gear that can be independently rotationally driven by the motor shaft, and the clutch housing comprises a first gear and a second gear configured to be engaged with the first and second output gears to implement rotational driving force at different rotational speeds.

Abstract: An electric power steering system includes: a housing defining a receiving space therein; a worm shaft disposed in the receiving space to be engaged with a worm wheel; a tilt plug coupled to an inner surface of the housing to be fastened to a predetermined position, and coupled to the worm shaft which is inserted into the receiving space to support the worm shaft; and an elastic supporter which is installed to the housing to elastically support the tilt plug toward the worm wheel. The tilt plug is provided with a coupling protrusion which is protruded from an end portion of the tilt plug in a center axis of the tilt plug and slides into an inner surface of the housing, and the inner surface of the housing is provided with a coupling indentation into which the coupling protrusion slides to restrict rotation of the tilt plug.

Abstract: A tilting structure for providing a force for tilting a worm shaft of an electrically powered steering apparatus to a worm wheel includes: a guide block which is inserted into an insertion space of a housing of the electrically powered steering apparatus; an elastic member which is disposed within the guide block; and a plug which is movably disposed within the guide block and is elastically supported by the elastic member to exert a tilting force to a bearing which supports the worm shaft.

Abstract: A tilting structure for providing a force for tilting a worm shaft of an electrically powered steering apparatus to a worm wheel includes: a guide block which is inserted into an insertion space of a housing of the electrically powered steering apparatus; an elastic member which is disposed within the guide block; and a plug which is movably disposed within the guide block and is elastically supported by the elastic member to exert a tilting force to a bearing which supports the worm shaft.