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公开(公告)号:US20230366997A1
公开(公告)日:2023-11-16
申请号:US17742886
申请日:2022-05-12
Applicant: GM Global Technology Operations LLC
Inventor: Kothamasi Sumithra Raju , Sudipto Ray , Yuchuan Liu , Julien P. Mourou
CPC classification number: G01S7/497 , B05B1/005 , B05B1/08 , B60S1/54 , G01S2007/4977
Abstract: A vehicle having a Lidar system includes a cleaning apparatus that performs a method of cleaning the Lidar system. The cleaning apparatus includes a nozzle for spraying a gas onto a window of the Lidar, a pump for controlling a flow of the gas through the nozzle, and a processor. The processor is configured to control the pump to control the flow of the gas through the nozzle at a variable flow rate.
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公开(公告)号:US10954996B2
公开(公告)日:2021-03-23
申请号:US16455061
申请日:2019-06-27
Applicant: GM Global Technology Operations LLC
Inventor: Louis P. Begin , Dingfeng Deng , Yuchuan Liu
IPC: H02K7/08 , H02K5/16 , F16C17/02 , F16C17/10 , F16C17/18 , F16C33/10 , F01D25/18 , F01D25/16 , F04D29/057 , F16C17/26
Abstract: A fluid bearing for operably connecting a shaft to a center housing of a turbocharger is provided. The fluid bearing includes a single-piece bearing sleeve defining a bore between first and second ends that each form a thrust face. The sleeve includes first and second bearing portions proximal to an associated one of the first and second ends, and a shank connecting the first and second bearing portions. Each of the first and second bearing portions includes an outer bearing surface defining a maximum outer diameter, and each of the first and second bearing portions includes an inner bearing surface defining a minimum inner diameter for radially supporting the shaft in the bore. The inner bearing surface is a continuous surface free of grooves. The sleeve has a wall thickness defining oil passages spaced from the inner bearing surface and configured to supply oil to the thrust face.
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公开(公告)号:US20140318494A1
公开(公告)日:2014-10-30
申请号:US13871117
申请日:2013-04-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Dale Edward Murrish , Yuchuan Liu , Thomas George Halka
IPC: F16C7/02
CPC classification number: F16C7/023 , F16C9/04 , F16C17/047 , F16C17/10 , F16C33/1075 , F16C2360/22 , Y10T74/2162
Abstract: A connecting rod for a device includes a rod having a large end, and a cap attached to the large end. The large end of the rod and the cap cooperate to define a first side surface and a second side surface disposed opposite to each other. The large end of the rod and the cap further define a crankshaft bore that extends along a crank axis between the first side surface and the second side surface. A thrust surface is defined by at least one of the first side surface or the second side surface, and is disposed on a thrust plane. The thrust surface includes at least one recessed region that extends inward away from the thrust plane of the thrust surface. Each of the thrust surfaces include ramps that extend between the recessed regions and the flat regions at the thrust plane of the thrust surface.
Abstract translation: 用于装置的连杆包括具有大端的杆和附接到大端的帽。 杆和盖的大端协作以限定彼此相对布置的第一侧表面和第二侧表面。 杆和帽的大端部还限定了曲柄轴孔,该曲轴孔沿第一侧表面和第二侧表面之间的曲柄轴线延伸。 推力表面由第一侧表面或第二侧表面中的至少一个限定,并且设置在推力平面上。 推力表面包括至少一个从推力表面的推力平面向内延伸的凹陷区域。 每个推力表面包括在凹陷区域和在推力表面的推力平面处的平坦区域之间延伸的斜面。
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公开(公告)号:US12099147B2
公开(公告)日:2024-09-24
申请号:US17742886
申请日:2022-05-12
Applicant: GM Global Technology Operations LLC
Inventor: Kothamasi Sumithra Raju , Sudipto Ray , Yuchuan Liu , Julien P. Mourou
CPC classification number: G01S7/497 , B05B1/005 , B05B1/08 , B60S1/54 , G01S2007/4977
Abstract: A vehicle having a Lidar system includes a cleaning apparatus that performs a method of cleaning the Lidar system. The cleaning apparatus includes a nozzle for spraying a gas onto a window of the Lidar, a pump for controlling a flow of the gas through the nozzle, and a processor. The processor is configured to control the pump to control the flow of the gas through the nozzle at a variable flow rate.
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5.
公开(公告)号:US20230391291A1
公开(公告)日:2023-12-07
申请号:US17834610
申请日:2022-06-07
Applicant: GM Global Technology Operations LLC
Inventor: Kothamasi Sumithra Raju , Julien P. Mourou , Sudipto Ray , Yuchuan Liu
CPC classification number: B60S1/0848 , B60S1/0862 , B60W60/001 , B60W2420/52 , B60W2555/20
Abstract: A Lidar system, a cleaning apparatus for the Lidar system and a method of operation. The cleaning apparatus cleans a surface of the Lidar system. The cleaning apparatus includes a nozzle and a processor. The nozzle discharges a gas at a surface of the Lidar system. The processor is configured to identify a type of debris on the surface, identify a cleaning mode for cleaning the surface based on the type of debris, select a nozzle velocity of the gas from the nozzle based on the cleaning mode, and operate the nozzle to discharge the gas at the nozzle velocity.
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6.
公开(公告)号:US11453370B2
公开(公告)日:2022-09-27
申请号:US17182666
申请日:2021-02-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Zhe Li , Yuchuan Liu , Bo Yang , Julien P. Mourou
Abstract: A sensor assembly includes a sensor and a cover disposed adjacent to the sensor to protect the sensor. The cover has an inner cover surface and an outer cover surface opposite the inner cover surface. The inner cover surface faces the sensor, and the outer cover surface faces away from the sensor. The cover has a first end wall and a second end wall apart from the first end wall along a first direction. The sensor assembly includes a cleaning system having a wiper movable along the outer cover surface of the cover in the first direction to clean to the outer cover surface. The wiper is at least partly made of a wiper material, and the wiper material includes a hydrophilic material to facilitate removal of water from the outer cover surface of the cover.
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公开(公告)号:US20250145118A1
公开(公告)日:2025-05-08
申请号:US18501133
申请日:2023-11-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Kothamasi Sumithra RAJU , Yuchuan Liu , Julien P. Mourou , Zhe Li
Abstract: A vehicle camera lens cleaning system includes a camera configured to be mounted to a vehicle and including a lens; an ultrasonic cleaning system adapted to vibrate the lens; a source of pressurized air; an air flow passage connected to the source of pressurize air; an annular duct connected to the air flow passage and surrounding the lens, the annular duct having a non-uniform cross section taken in a radial direction from a center of the lens; a plurality of nozzles extending from the annular duct and pointed at the lens; and a controller configured to supply pressurized air from the source of pressurized air to the plurality of nozzles simultaneous with operating the ultrasonic cleaning system.
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公开(公告)号:US20230366996A1
公开(公告)日:2023-11-16
申请号:US17741740
申请日:2022-05-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Zhe Li , Bo Yang , Yuchuan Liu , Julien P. Mourou , Rachit Garg
CPC classification number: G01S7/497 , G01S7/027 , G01S17/931
Abstract: An apparatus for protecting a sensor device includes a cover mounted on the sensor device, the cover including a cover portion made from a transparent material that is transparent to sensor signals, the cover portion including an external surface having a wettability that varies according to a wettability gradient in a selected direction along the surface.
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公开(公告)号:US20230159004A1
公开(公告)日:2023-05-25
申请号:US17534810
申请日:2021-11-24
Applicant: GM Global Technology Operations LLC
Inventor: Bo Yang , Yuchuan Liu , Julien P. Mourou , Zhe Li
IPC: B60S1/56 , G01S17/931 , G02B27/00
CPC classification number: B60S1/56 , G01S17/931 , G02B27/0006
Abstract: A Lidar system, window of the Lidar system and a method of moving a fluid along a window. The window includes a first electrode disposed on a first side of a outermost layer of the window, a second electrode disposed on the first side of the outermost layer, and a processor. The processor is configured to activate the first electrode to draw a fluid to a first location on a second side of the outermost layer opposite the first electrode, deactivate the first electrode, and activate the second electrode to draw the fluid to a second location on the second side of the outermost layer opposite the second electrode.
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公开(公告)号:US20190277159A1
公开(公告)日:2019-09-12
申请号:US15916331
申请日:2018-03-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Yuli Huang , Fanghui Shi , Yuchuan Liu , Bo Yang , Louis P. Begin
Abstract: A turbocharger assembly includes a center housing which defines a bore, a journal bearing, and a rotating assembly. The bore further defines primary and secondary annular grooves. The journal bearing may be disposed within the bore such that the annular groove encircles the journal bearing and feeds the fluid thereto. The rotating assembly includes a shaft, a turbine wheel and a compressor wheel. The turbine wheel is configured to be driven by the post-combustion gasses while the compressor wheel pressurizes the airflow for delivery to a combustion chamber. The shaft may be supported by one or more journal bearings for rotation within the bore about a longitudinal axis. The shaft includes a shaft surface which defines a standard region and a feature in a feature region. The feature is configured to generate a plurality of fictitious forces which stabilizes the turbocharger shaft.
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