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公开(公告)号：US12122462B2
公开(公告)日：2024-10-22
申请号：US17543216
申请日：2021-12-06
申请人： JTEKT CORPORATION
发明人： Yoshio Nakada
CPC分类号： B62D5/0403 , B62D1/20 , B62D3/12 , B62D5/0421
摘要： A vehicle steering system includes a rack shaft, a pinion shaft, a housing including a rack shaft receiving portion and a pinion shaft receiving portion, and a cover member disposed above the pinion shaft receiving portion. A part of the pinion shaft projects upward from an upper end opening of the pinion shaft receiving portion. The cover member includes a hood portion and an annular side wall portion. The pinion shaft is inserted through the hood portion. The side wall portion includes a valve portion capable of coming into abutment with an outer circumferential surface of the pinion shaft receiving portion.
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2.发明公开公开(公告)号：US20240336300A1
公开(公告)日：2024-10-10
申请号：US18627577
申请日：2024-04-05
CPC分类号： B62D6/008 , B62D3/12 , B62D5/0472
摘要： A method for rack force effort-based damping includes: receiving a handwheel velocity signal associated with rotational motion of a handwheel of a vehicle; determining a vehicle speed; identifying, in a rack force look-up table, a rack force value based on the handwheel velocity signal and the vehicle speed; generating a modified rack force signal by adding the rack force value to a rack force signal; identifying, in an effort look-up table, an effort value based on the modified rack force signal; and selectively controlling at least one aspect of a steering system based on the effort value.
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公开(公告)号：US20240255539A1
公开(公告)日：2024-08-01
申请号：US18419329
申请日：2024-01-22
申请人： Proterial, Ltd.
CPC分类号： G01P3/505 , B62D3/12 , G01R33/091
摘要： A position detection device for detecting a position of a moving member moving forward and backward in a predetermined moving direction is provided with a detection object attached to the moving member, a substrate provided with an excitation coil for generating a magnetic field in an area including the detection object and a detection coil being interlinked with a magnetic flux of the magnetic field, a power supply unit for supplying an alternating current to the excitation coil, and a calculation unit that calculates the position of the moving member based on an output voltage of the detection coil. The detection coil is shaped as a combination of a pair of curved portions that are symmetrical across a symmetry axis parallel to the moving direction of the moving member. Each of the curved portions is shaped as a sinusoidal fundamental wave component superimposed with a harmonic component of a third or higher order multiplied by each of coefficients corresponding to the order. The coefficients are adjusted in such a manner that a peak value of a voltage induced in the detection coil changes sinusoidally when the detection object moves at a constant speed relative to the substrate while facing a part of the substrate.
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公开(公告)号：US20240157997A1
公开(公告)日：2024-05-16
申请号：US18222165
申请日：2023-07-14
申请人： HL MANDO CORPORATION
发明人： Seunghyun BAE
摘要： A dust cap for a steering system, the dust cap including a main body formed to provide an accommodation hole through which a shaft of the steering system passes, a bottom part disposed at an upper portion of the main body to support a dust packing to be in close contact with a vehicle part, and a vent member inserted into an opening at the bottom part, wherein the vent member is shaped to define a vent hole providing communication between an inner space of the bottom part and an outside of the vent member, and wherein a cross-sectional width of the vent hole gradually decreases along a downward direction.
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公开(公告)号：US11980929B2
公开(公告)日：2024-05-14
申请号：US16764251
申请日：2018-11-15
申请人： NETUREN CO., LTD.
摘要： A manufacturing method is provided for a hollow rack bar made of a hollow shaft material and including a toothed section which has a rack on an outer surface and a shaft section which is thinner than the toothed section. The manufacturing method includes: (i) drawing the hollow shaft material using a die and a plug, and preforming regions of the hollow shaft material including a toothed section formation region configured to become the toothed section and a shaft section formation region configured to become the shaft section so as to have thicknesses according to the respective regions; and (ii) forming the rack at the toothed section formation region of the hollow shaft material which is preformed.
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公开(公告)号：US11933406B2
公开(公告)日：2024-03-19
申请号：US17943946
申请日：2022-09-13
申请人： Robert Bosch GmbH
发明人： Nicholas LaGana
摘要： One aspect of this disclosure is directed to a steering system comprising a housing in which a steering rack is movably arranged and extends out of the housing on at least one side of the housing, the steering rack being connected with a tie rod via a ball joint, wherein the connection is covered by a protective bellows defining a central axis and the bellows further comprising a first end defining a first opening around the central axis, a second end defining a second opening around the central axis, and several annular folds arranged along the central axis between the first end and second end, and wherein the bellows comprises a plurality of skirts arranged along the central axis and extending away from the bellows.
Another aspect of this disclosure is directed to a protective bellows defining a central axis and comprising a first end defining a first opening around the central axis, a second end defining a second opening around the central axis, and several annular folds arranged along the central axis between the first end and second end, and the bellows comprises a plurality of skirts arranged along the central axis.-
公开(公告)号：US11904949B2
公开(公告)日：2024-02-20
申请号：US17925906
申请日：2020-06-16
申请人： Hitachi Astemo, Ltd.
发明人： Satoshi Enomoto
CPC分类号： B62D3/126 , F16H19/04 , F16H2019/046
摘要： A vehicular steering device includes a turning shaft, a housing storing therein the turning shaft, a stopper provided at a shaft end of the turning shaft, and an annular elastic body. An opening of the housing is formed in a U-shaped cross-sectional shape and in an annular shape opened toward the stopper by an external cylinder portion and an internal cylinder portion. The elastic body includes a first elastic portion and a second elastic portion. The first elastic portion is supported by an inner circumferential surface of the external cylinder portion and the bottom surface, and is provided with a first clearance from an outer circumferential surface of the internal cylinder portion. The second elastic portion extends toward the stopper from the first elastic portion, and is provided with a second clearance larger than the first clearance from the inner circumferential surface of the external cylinder portion.
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公开(公告)号：US11891129B2
公开(公告)日：2024-02-06
申请号：US17166720
申请日：2021-02-03
CPC分类号： B62D5/0427 , B62D3/12 , B62D5/0412 , B62D5/0448
摘要： A rack bar assembly for a rack electric power steering system is provided. The rack bar assembly includes a first rack bar extending axially. The rack bar assembly also includes a second rack bar extending axially, wherein the first rack bar and the second rack bar are spaced a radial distance from each other and oriented parallel to each other.
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公开(公告)号：US11891123B2
公开(公告)日：2024-02-06
申请号：US17502866
申请日：2021-10-15
申请人： Sandcraft LLC
CPC分类号： B62D3/12 , B62D7/163 , B60G2200/314 , B60G2200/44 , F16H19/04
摘要： A steering rack support assembly with a support shaft and a sleeve. The support shaft has a first end, a second end, and at least two mounting members. The cross section of the support shaft may be substantially the same along the length of the support shaft. A first of the at least two mounting members may be affixed to the first end of the support shaft, while a second of the at least two mounting members may be affixed to the second end. Each of the at least two mounting members may be configured to couple to the frame of the vehicle. The sleeve is disposed around an outer surface of the support shaft and is slidably coupled to the support shaft. A bracket affixed to the sleeve may be configured to couple to a rack and pinion assembly, a first tie rod, and a second tie rod.
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公开(公告)号：US20240035533A1
公开(公告)日：2024-02-01
申请号：US17876783
申请日：2022-07-29
申请人： Robert Bosch GmbH
发明人： Max Mitchell
CPC分类号： F16F1/3835 , B62D3/126 , F16F1/3732 , F16F2224/025
摘要： A multi-strata radial damper configured to dampen forces exerted in a radial direction between a rack bar of an automobile and a bushing sleeve protecting the rack bar. The radial damper may include a stratum made of a polymer material. The radial damper may additionally dampen forces exerted in an axial direction between the tie rod and the bushing sleeve.
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