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公开(公告)号：US11718264B1
公开(公告)日：2023-08-08
申请号：US17941548
申请日：2022-09-09
IPC分类号： B60R21/18 , B60R21/2338 , B60R21/233 , B60R21/231
CPC分类号： B60R21/231 , B60R21/18 , B60R21/233 , B60R21/2338 , B60R2021/23107 , B60R2021/23308
摘要： Systems and methods of a seatbelt with head restraint are provided. A seatbelt assembly for a vehicle may include a plurality of airbags and an electrostatic clutch to control a deployment of the plurality of airbags. The electrostatic clutch may be operable to limit a movement of the plurality of airbags relative to each other to define a deployment shape of the airbags. Associated vehicles including the seatbelt assembly are provided. Associated methods are also provided.
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公开(公告)号：US20220356312A1
公开(公告)日：2022-11-10
申请号：US17307611
申请日：2021-05-04
发明人： Yuyang Song , Umesh N. Gandhi , Piran R. Kidambi
摘要： A non-woven carbon fiber reinforced thermoplastic (CFRTP) composite object is formed by the variable frequency microwave (VFM) irradiation of a mixed fiber sheet of thermoplastic fibers, carbon fibers and wavy carbon nanotubes (CNTs). The mixed fiber sheets are prepared from a slurry of the thermoplastic fibers, carbon fibers, and wavy CNTs such that the wavy CNTs contact the carbon fibers and thermoplastic fibers. Upon irradiation with VFM radiation, the wavy CNTs generate heat and transfer the heat to the thermoplastic fibers, causing melting of the thermoplastic to form the matrix of the CFRTP composite object. The mixed fiber sheets can be combined alone or with other sheets to form laminar composites that are molded into objects and heated by VFM irradiation.
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公开(公告)号：US20220314211A1
公开(公告)日：2022-10-06
申请号：US17218345
申请日：2021-03-31
发明人： Yuyang Song , Shailesh N. Joshi , Piran R. Kidambi , Peifu Cheng
摘要： A method of fabricating a carbon nanotube (“CNT”) array includes providing a substrate with a CNT catalyst disposed on a surface of the substrate, heating the CNT catalyst to an annealing temperature, exposing the CNT catalyst to a CNT precursor for an exposure period to pre-load the CNT catalyst, and exposing the pre-loaded CNT catalyst to a carbon source for a growth period to form the CNT array. The formed CNT array comprises a plurality of CNT bundles that are aligned with one another in an alignment direction. At least one of the plurality of bundles comprises an average structural factor of 1.5 or less along an entirety of the length thereof.
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公开(公告)号：US10207665B2
公开(公告)日：2019-02-19
申请号：US15474423
申请日：2017-03-30
发明人： Umesh N. Gandhi , Yuyang Song , Shardul S. Panwar
摘要： A variable shear control energy absorption system for a vehicle is provided. The system may include a vehicle frame component and a primary deformable impact absorber located adjacent the vehicle frame component. The vehicle frame component may be a bumper reinforcement member. The system may include a plurality of secondary deformable impact chambers located within the primary deformable impact absorber, each secondary deformable impact chamber including a shear thickening fluid that exhibits an increasing or decreasing viscosity responsive to an impact force. At least one elastic relief chamber is provided in fluid communication with the plurality of secondary deformable impact chambers. The elastic relief chamber is configured to temporarily accept the shear thickening fluid from the plurality of secondary deformable impact chambers during low force impacts, and to redirect the shear thickening fluid back to the secondary deformable impact chambers after the low impact force recedes.
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公开(公告)号：US20240326733A1
公开(公告)日：2024-10-03
申请号：US18128741
申请日：2023-03-30
发明人： Phouvadol P. Khouphongsy , Yuyang Song , Danil V. Prokhorov , Umesh N. Gandhi , Mizuho Takayama , Shinnosuke Shimokawa
IPC分类号： B60R21/235
CPC分类号： B60R21/235 , B60R2021/23542
摘要： Various embodiments of an airbag system provide a hollow body that is constructed of a textile material having a first tear resistance value prior to application of a dilatant material onto the hollow body. The dilatant material may be present on less than an entirety of the hollow body and provide the hollow body with a second tear resistance value that is greater than the first tear resistance value after application of the dilatant material.
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公开(公告)号：US12092134B2
公开(公告)日：2024-09-17
申请号：US18086305
申请日：2022-12-21
发明人： Masato Tanaka , Yuyang Song
CPC分类号： F15B15/103 , A47C27/081 , B32B3/085 , B32B3/10 , B32B5/02 , B32B5/26 , B32B27/08 , B32B27/12 , B32B2307/54 , B32B2479/00 , Y10T137/3584
摘要： An inflatable includes an inflation chamber. The inflation chamber has an outer surface, a first end, and a second end substantially opposite the first end. The inflation chamber is configured to be inflated from a deflated state to an inflated state. The inflation chamber is loadable and bendable in the inflated state. The inflatable also includes a reinforcement. The reinforcement has reinforcement sections corresponding to high-stress regions of the outer surface when the inflation chamber is in the inflated state. The reinforcement is attached to the outer surface and is configured to improve at least one of a loading strength and a bending capability of the inflation chamber when the reinforcement sections are placed on the high-stress regions of the outer surface. The reinforcement is shaped according to a Turing pattern that is based on the high-stress regions of the outer surface.
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公开(公告)号：US11965491B2
公开(公告)日：2024-04-23
申请号：US17941079
申请日：2022-09-09
CPC分类号： F03G7/0612 , B25J9/1075 , B25J9/142 , B25J18/02 , B25J18/06 , F03G7/06143 , F03G7/0616 , F03G7/062
摘要： A soft actuator includes an origami structure with an inflatable hollow body formed from at least one of Dyneema fabric or Kevlar fabric, and a plurality of TCPAs formed from at least one of polyethylene terephthalate, spandex, and nylon. The soft actuator also includes a plurality of heating wires disposed on the plurality of TCPAs and a controller configured to selectively heat the plurality of heating wires such that the plurality of TCPAs are selectively actuated by being heated by the plurality of heating wires.
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公开(公告)号：US20230419938A1
公开(公告)日：2023-12-28
申请号：US17851422
申请日：2022-06-28
发明人： Taehwa Lee , Yuyang Song , Xiaopeng Li , Ziqi Yu
IPC分类号： G10K11/168
CPC分类号： G10K11/168
摘要： A sound absorbing device includes a chamber with an opening and at least one fabric layer extending across the opening. The at least one fabric layer extending across the opening is at least two fabric layers stacked relative to and in direct contact with each other, at least two fabric layers stacked relative to and spaced apart from each other by a predefined distance, at least one elastic fabric layer configured to vibrate independently from the chamber, or a three dimensional fabric layer. The at least two fabric layers stacked relative to and in direct contact with each other and the at least two fabric layers stacked relative to and spaced apart from each other by a predefined distance are configured to move relative to each other, and the at least one elastic fabric layer is configured to vibrate independently from the chamber.
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公开(公告)号：US11241842B2
公开(公告)日：2022-02-08
申请号：US16256569
申请日：2019-01-24
发明人： Umesh N. Gandhi , Michael Paul Rowe , Yuyang Song
摘要： Methods for microwave melting of fiber mixtures to form composite materials include placing the fiber mixture in a receptacle located in a microwave oven. The methods further include microwave heating the mixture, causing a heat activated compression mechanism to automatically increase compressive force on the mixture, thereby eliminating air and void volumes. The heat activated compression mechanism can include a shape memory alloy wire connecting first and second compression brackets, or one or more ceramic blocks configured to increase in volume and thereby increase compression on the mixture.
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公开(公告)号：US20200263980A1
公开(公告)日：2020-08-20
申请号：US16280546
申请日：2019-02-20
发明人： Umesh N. Gandhi , Taewoo Nam , Yuyang Song , Ryohei Tsuruta
摘要： Systems, methods, and other implementations described herein relate to a manner of detecting kinking or other bend on a bendable structure. In one implementation, a bendable structure is configured to kink at different locations. First and second sensors surface-mounted antiparallel along the bendable structure have bending responses that increase with increasing amounts of bending, and that are increasingly sensitive along their lengths. The bending responses from first and second sensors are received at a first time and a second time subsequent to the first time. The formation of a kink is identified in response to identifying that the bending responses are indicative of unkinked bending at the first time and indicative of kinked bending at the second time. In response to identifying the formation of the kink, the location of the kink is identified based on the bending responses at the first time.
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