An electric power steering system. The system includes a steering rack having a first end and a second end and at least one damper coupled to one of the first end and the second end. The system also includes an electronic controller configured to determine if the damper has been destroyed based upon a sensed steering angle being above a maximum steering angle threshold or based upon a received signal from an electrical circuit enclosed within the at least one damper.

Provide is a steering device capable of absorbing great impact force, a damper applicable to the steering device, and a flow control valve applicable to the damper. The steering device 100 includes a damper 120 between a rack bar 103 and a rack end 106. In the damper 120, an inner chamber 121 is formed at an outer peripheral portion of a socket main body 107, and an integral displacement body 130 is slidably fitted onto the outer peripheral portion. The integral displacement body 130 is, at an inner peripheral portion thereof, formed with a circular ring-shaped flow control valve 140. The flow control valve 140 is provided with a first flow control valve 150. The first flow control valve 150 includes a second flow body 156 that approaches or separates from a first flow body 153. In the second flow body 156, a second flow hole 157 is formed at a position shifted from a first flow hole 154 formed at the first flow body 153, and a second hole diameter restriction portion 158 is formed so as to close the first flow hole 154.

Provide is a steering device capable of absorbing great impact force, a damper applicable to the steering device, and a flow control valve applicable to the damper. The steering device 100 includes a damper 120 between a rack bar 103 and a rack end 106. In the damper 120, an inner chamber 121 is formed at an outer peripheral portion of a socket main body 107, and an integral displacement body 130 is slidably fitted onto the outer peripheral portion. The integral displacement body 130 is, at an inner peripheral portion thereof, formed with a circular ring-shaped flow control valve 140. The flow control valve 140 is provided with a first flow control valve 150. The first flow control valve 150 includes a second flow body 156 that approaches or separates from a first flow body 153. In the second flow body 156, a second flow hole 157 is formed at a position shifted from a first flow hole 154 formed at the first flow body 153, and a second hole diameter restriction portion 158 is formed so as to close the first flow hole 154.

A steering device includes: a housing including a first planar surface, the housing being configured to accommodate a part of a rack shaft; an electric motor including a second planar surface facing the first planar surface, the electric motor including a bracket configured to support a rotary shaft; a tightening member configured to tighten the housing and the bracket in a state where the first planar surface and the second planar surface are mated; and a sealing member configured to provide sealing between the housing and the bracket at a position that is closer to the rotary shaft than the tightening member is. At least one of the first planar surface and the second planar surface is formed with a recess located between the tightening member and the sealing member and depressed from the at least one of the first planar surface and the second planar surface.

The disclosure relates to an apparatus for pressing a rack onto a pinion, with a pressure piece. The pressure piece being arranged within a housing and to be displaceable in an axial direction of a center longitudinal axis. A bearing element is fixed on the housing in the axial direction with respect to the center longitudinal axis. A prestressing element acts in the axial direction. The pressure piece is loaded by the prestressing element which is arranged between the pressure piece and the bearing element with a prestressing force in the axial direction with respect to the center longitudinal axis and directed away from the bearing element. An adjusting ring which is arranged between the bearing element and the pressure piece. At least two inclined faces of the adjusting ring and an adjusting section bear against one another. In order to be able to reduce the production outlay and/or realize a more compact overall design, a force application disk is arranged between the adjusting ring and the adjusting section.

A steer by wire type steering apparatus comprises a first guide member formed in an axial shape, a second guide member coupled to or integrally formed with the first guide member and having a helical guide groove that gradually decreases in diameter from the outer periphery to the center, a housing in which the first guide member and the second guide member are built in, and a radial slot is formed in a portion facing the guide groove, and a moving member having one end supported by the slot and the other end supported by the guide groove and radially moving along the slot.

A steer by wire type steering apparatus comprises a first guide member formed in an axial shape, a second guide member coupled to or integrally formed with the first guide member and having a helical guide groove that gradually decreases in diameter from the outer periphery to the center, a housing in which the first guide member and the second guide member are built in, and a radial slot is formed in a portion facing the guide groove, and a moving member having one end supported by the slot and the other end supported by the guide groove and radially moving along the slot.

A damping stopper is interposed between two members axially displaced relative to each other and is provided with an elastic body which, when the interval between the two members decreases, is axially compressed by the two members and expands radially outward. In the elastic body, a second member suppressing the expansion is located in one axial region and attached to the outer periphery. When axially compressed by the two members, the elastic body expands while receiving resistance by the second member. The expanding elastic body contacts the side wall of one of the two members.

A damping stopper is interposed between two members axially displaced relative to each other and is provided with an elastic body which, when the interval between the two members decreases, is axially compressed by the two members and expands radially outward. In the elastic body, a second member suppressing the expansion is located in one axial region and attached to the outer periphery. When axially compressed by the two members, the elastic body expands while receiving resistance by the second member. The expanding elastic body contacts the side wall of one of the two members.

A steering system for a vehicle includes a housing section, a rack section configured to penetrate the housing section, a case section mounted in the housing section, and a sensor section, mounted in the case section, configured to engage the rack section and sense an amount of movement of the rack section while being rotated.