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公开(公告)号：US11879508B2
公开(公告)日：2024-01-23
申请号：US18071319
申请日：2022-11-29
发明人： Sang Woo Hwang , Youngil Sohn , Sehyun Chang , Min Jun Kim
IPC分类号： F16D41/04 , F16D27/01 , F16D43/202
CPC分类号： F16D41/04 , F16D27/01 , F16D43/2028
摘要： A clutch for preventing backdrive, includes a housing: a cover portion positioned on one end portion of the housing; an external shaft, at least one portion of which is positioned inside the housing, the other end portion thereof passing through the housing; a rocker positioned between the housing and the cover portion and fastened to the external shaft; an input shaft, one end portion thereof being inserted into an opening portion in the locker, and the other end portion thereof passing through the cover portion; and a gear portion positioned on the housing or the cover portion so that a serrated portion positioned on the locker is selectively brought into contact with the gear portion, wherein rotation of the rocker is restricted so that the external shaft is rotated along a rotation direction of the input shaft.
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公开(公告)号：US20230287947A1
公开(公告)日：2023-09-14
申请号：US18078625
申请日：2022-12-09
发明人： Sang Woo Hwang , Youngil Sohn , Sehyun Chang , Min Jun Kim
IPC分类号： F16D65/18
CPC分类号： F16D65/18 , F16D2121/24
摘要： An automotive electro-mechanical brake apparatus includes a clamping unit provided to be able to axial move forwards and rearwards thereof along a torque member and configured to press a disc through a friction pad by moving rearward in braking, a pressing unit accommodated in the clamping unit, selectively moving forward or rearward when rotation is input thereto, and configured to move forward, press the disc through the friction pad, and guide rearward movement of the clamping unit in braking, a gear unit engaged with the pressing unit, and a clutch unit connected to the gear unit, configured to transmit rotational driving force for inputting the rotation to the pressure unit to the gear unit, and configured to prevent displacement against reverse rotation input from the gear unit in driving.
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公开(公告)号：US11713050B2
公开(公告)日：2023-08-01
申请号：US17346140
申请日：2021-06-11
发明人： Sang Woo Hwang , Young Dae Park , Byung Rim Lee , Min Jun Kim , Se Hyun Chang , Hyeon Seok Cho
IPC分类号： B60W50/08 , B60W50/035 , B60W50/12 , B60W60/00 , B60W50/00
CPC分类号： B60W50/082 , B60W50/035 , B60W50/12 , B60W60/0015 , B60W60/0053 , B60W2050/0008 , B60W2510/202 , B60W2710/207
摘要： A method for controlling switching of steering control rights of an autonomous vehicle, may include: performing a control to synchronize a steering angle of a steering wheel and a steering angle of a road wheel, when switching of the steering control rights from an automated driving mode to a manual driving mode is requested. The method further includes: detecting an error value between the steering angle of the steering wheel and the steering angle of the road wheel, when a hands-on state in which the steering wheel is gripped is detected in the synchronization process. In addition, the method further includes: performing a control to switch the mode of the autonomous vehicle to the manual driving mode, when the error value is less than a preset value.
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公开(公告)号：US11504890B2
公开(公告)日：2022-11-22
申请号：US16881414
申请日：2020-05-22
发明人： Hyun Kyung Kim , Dong Eun Cha , Jin Young Yoon , Byung Kyu Yoon , Hwi Sung Jung , Sang Hyeon Park , Ju Hyun Kwon , Seung Ryeol Lee , Yong Woo Jung , Min Jun Kim , Eon Yeon Jo
摘要： An insert molding apparatus includes: a lower mold including a seating part on which an insert member including a through-hole is seated; an upper mold mounted on the lower mold to receive the insert member seated on the seating part; and a first fixing part including a first head provided in the lower mold and inserted into the through-hole of the insert member when the insert member is seated, and a first drive unit that moves the first head. The first drive unit is moved to adjust a length by which the first head is inserted into the through-hole.
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公开(公告)号：US20200088596A1
公开(公告)日：2020-03-19
申请号：US16179423
申请日：2018-11-02
发明人： Sang Woo Hwang , Young Dae Park , Byung Rim Lee , Min Jun Kim , Se Hyun Chang , Hyeon Seok Cho
摘要： The present disclosure relates to a technology of estimating rack force using force that is transmitted from a steering motor of a Steer-By-Wire (SBW) system to a rack bar. The present disclosure provides a method for estimating rack force of an SBW system, the method calculating restoring force that is applied to a reducer on the basis of the difference between position values of the rack bar that are obtained at the front end and the rear end of the reducer when the position of the rack bar is changed by operation of a steering motor; and calculating rack force by reflecting the restoring force to a motion equation including inertia force of the SBW system.
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公开(公告)号：US10549771B2
公开(公告)日：2020-02-04
申请号：US15808123
申请日：2017-11-09
发明人： Sang Woo Hwang , Hyeon Seok Cho , Byung Rim Lee , Young Dae Park , Min Jun Kim
摘要： A steering apparatus for a steer-by-were system includes a driving member rotating in conjunction with a steering wheel and having a first stopper protruding from the driving member; a change gear receiving rotational force from the driving member, changing a rotational speed, and outputting a changed rotational speed; and a driven member receiving the rotational force output from the change gear, rotating at a rotational speed different from that of the driving member, and having a second stopper, which protrudes from the driven member, disposed within a rotation radius of the first stopper. The second stopper comes into contact with the first stopper at a predetermined steering angle during rotation of the driving member.
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公开(公告)号：US10464596B2
公开(公告)日：2019-11-05
申请号：US15811343
申请日：2017-11-13
发明人： Sang Woo Hwang , Hyeon Seok Cho , Byung Rim Lee , Young Dae Park , Min Jun Kim
摘要： A steering system for a vehicle may include first and second steering motors providing torque; a rack bar to which torques of the first and second steering motor are simultaneously applied, and configured to change steering angles of wheels by being displaced by the rotation of the first and second steering motors; first and second motor position detectors detecting rotation angles of the first and second steering motors, respectively; and a controller deriving an absolute position of the rack bar based on a difference between the rotation angles of the first and second steering motors detected by the first and second motor position detectors, wherein an amount of displacement of the rack bar according to an amount of rotation of the first steering motor is different from an amount of displacement of the rack bar according to an amount of rotation of the second steering motor.
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公开(公告)号：US11884343B2
公开(公告)日：2024-01-30
申请号：US17028529
申请日：2020-09-22
发明人： Sang Woo Hwang , Young Dae Park , Byung Rim Lee , Min Jun Kim , Se Hyun Chang , Hyeon Seok Cho
CPC分类号： B62D6/008 , B62D5/006 , B62D5/0421 , B62D15/0215
摘要： A steering feel assisting apparatus of a steer-by-wire (SBW) system, may include a disk configured to rotate together with a steering shaft; a cam engaged to an actuator and configured to receive a rotational force of the actuator to be eccentrically rotated; and a brake arm configured to selectively friction-contact with an external peripheral surface of the disk to provide a predetermined frictional force in a forward rotation direction of the disk as the brake arm rotates in conjunction with rotation of the cam.
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公开(公告)号：US11124229B2
公开(公告)日：2021-09-21
申请号：US16193196
申请日：2018-11-16
发明人： Min Jun Kim , Young Dae Park , Byung Rim Lee , Sang Woo Hwang , Se Hyun Chang , Hyeon Seok Cho
摘要： A steering apparatus of a steer-by-wire (SBW) system includes a structure for changing the frictional force of the system and a structure for limiting the rotation range of a steering wheel. The steering apparatus includes: a shaft rotatably interlocked with a steering wheel, a friction member surrounding the shaft and contacting the shaft, a frictional force provision device for narrowing and widening the friction member in the radial direction of the shaft to change the frictional force of the friction member that contacts the shaft, and a steering limitation device for regulating the rotation of the shaft using a stopper provided at the friction member during the rotation of the shaft to limit the steering of the steering wheel.
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公开(公告)号：US11104379B2
公开(公告)日：2021-08-31
申请号：US16167671
申请日：2018-10-23
发明人： Sang Woo Hwang , Young Dae Park , Byung Rim Lee , Min Jun Kim , Se Hyun Chang , Hyeon Seok Cho
摘要： A travel control system and a method for an autonomous vehicle is provided to easily determine a rotating position of a steering wheel when an autonomous travel mode is switched to a driver's travel mode. The travel control system includes: a display mechanism provided in a central portion of a steering wheel to display a rotating position of the steering wheel; and a controller to controls the display mechanism to display the rotating position of the steering wheel based on a steering angle of a tire when the steering angle of the tire is input and the autonomous travel mode is switched to the driver travel mode.
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