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公开(公告)号:US20240280376A1
公开(公告)日:2024-08-22
申请号:US18171848
申请日:2023-02-21
Applicant: GM Global Technology Operations LLC
Inventor: Gui Chen , Bo Yu , Brent Navin Roger Bacchus , Shu Chen , Joon Hwang , Michael Alan Losh
CPC classification number: G01C21/3881 , G01C21/32 , G01C21/3815 , G06T7/38 , G06T17/005 , G06T17/05 , G06T2207/10028
Abstract: A method for quantifying map errors includes receiving first map data and second map data. The method includes receiving a road topographic map. The method further includes dividing the road into road segments. The method further includes creating a plurality of bounding boxes for each of the plurality of road segments. The method includes creating a first map tile and a second map tile by filtering out the bounding boxes. The method includes executing point cloud registration to align the plurality of first data points in the first map tile with the plurality of second data points in the second map tile to determine a plurality of absolute offsets between the plurality of first data points and the plurality of second data points. The method includes determining a relative map error between the first map and the second map based on the absolute offsets.
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公开(公告)号:US20240085210A1
公开(公告)日:2024-03-14
申请号:US17930503
申请日:2022-09-08
Applicant: GM Global Technology Operations LLC
Inventor: Bo Yu , Fan Bai , Gui Chen , Joon Hwang , Carl P. Darukhanavala , Vivek Vijaya Kumar , Shu Chen , Donald K. Grimm
IPC: G01C21/00
CPC classification number: G01C21/3822 , G01C21/3841 , G01C21/3867
Abstract: A method of creating a high-definition (HD) map of a roadway includes receiving a multi-layer probability density bitmap. The multi-layer probability density bitmap represents a plurality of lane lines of the roadway sensed by a plurality of sensors of a plurality of vehicles. The multi-layer probability density bitmap includes a plurality of points. The method further includes recursively conducting a hill climbing search using the multi-layer probability density bitmap to create a plurality of lines. In addition, the method includes creating the HD map of the roadway using the plurality of lines determined by the hill climbing search.
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公开(公告)号:US20240068836A1
公开(公告)日:2024-02-29
申请号:US17821898
申请日:2022-08-24
Applicant: GM Global Technology Operations LLC
Inventor: Bo Yu , Joon Hwang , Gui Chen , Carl P. Darukhanavala , Vivek Vijaya Kumar , Shu Chen , Donald K. Grimm , Fan Bai
IPC: G01C21/00
CPC classification number: G01C21/3822 , G01C21/3841 , G01C21/3878
Abstract: A method includes receiving sensor data from a plurality of sensors of a plurality of vehicles. The sensor data includes vehicle GPS data and sensed lane line data of the roadway. The method further includes creating a plurality of multi-layer bitmaps for each of the plurality of vehicles using the sensor data, fusing the plurality of the multi-layer bitmaps of each of the plurality of vehicles to create a fused multi-layer bitmap, creating a plurality of multi-layer probability density bitmaps using the fused multi-layer bitmap, extracting lane line data from the plurality of multi-layer probability density bitmaps, and creating the high-definition (HD) map of the roadway using the multi-layer probability density bitmaps and the lane line data extracted from the plurality of multi-layer probability density bitmaps.
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公开(公告)号:US11865891B2
公开(公告)日:2024-01-09
申请号:US17085637
申请日:2020-10-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Robert G. Izak , Nojan Medinei , Larry G. Gepfrey , Bo Yu
IPC: B60G21/055
CPC classification number: B60G21/0553 , B60G2400/104 , B60G2400/204 , B60G2400/25 , B60G2400/40 , B60G2400/80
Abstract: A system for active roll control for a vehicle body is provided and includes a sensor operable to monitor a tilt of the body and a suspension system. The suspension system includes an active sway bar including a first bar portion, a second bar portion, and an active roll control motor disposed between the first bar portion and the second bar portion. The active roll control motor is operable to turn the first bar portion in relation to the second bar portion. The system further includes a computerized active roll control controller which is operative to monitor a driving mode including one of straight-line driving and rounding a curve on a road, monitor an output of the sensor, determine a desired roll moment based upon the driving mode and the output of the sensor, and control the active roll control motor based upon the desired roll moment.
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85.
公开(公告)号:US11827293B2
公开(公告)日:2023-11-28
申请号:US17171005
申请日:2021-02-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Wen-Chiao Lin , Ibrahim A. Badiru , Alexander M. Allan , Bo Yu , Qi Zhang , Christopher C. Au
CPC classification number: B62D5/049 , B62D3/126 , B62D5/0484 , B62D5/0487
Abstract: A system comprises a processor and a memory storing instructions which when executed by the processor configure the processor to estimate a rack force for a steering system of a vehicle based on current driving and environmental conditions and estimate a health of an actuator of the steering system of the vehicle. The instructions configure the processor to estimate maximum achievable angle, velocity, and acceleration for the actuator of the steering system based on the estimated rack force and the estimated health of the actuator. The instructions configure the processor to provide to the steering system a path planned for the vehicle based on the estimated maximum achievable angle, velocity, and acceleration for the actuator of the steering system.
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公开(公告)号:US20230230423A1
公开(公告)日:2023-07-20
申请号:US17579821
申请日:2022-01-20
Applicant: GM Global Technology Operations LLC
Inventor: Bo Yu , Ashok Yendluri , Vivek Vijaya Kumar , Guangyu Jeff Zou , Kamran Ali
IPC: G07C5/00 , B60W40/105 , B60W40/114
CPC classification number: G07C5/008 , B60W40/105 , B60W40/114 , B60W2554/4049 , B60W2420/42 , B60W2552/53
Abstract: A system for associating a physical identity and a virtual identity of a target vehicle includes a data processor, including a wireless communication module, positioned within an ego vehicle, and a plurality of perception sensors, positioned within the ego vehicle and adapted to collect data related to a physical identity of the target vehicle and to communicate the data related to the physical identity of the target vehicle to the data processor via a communication bus, the data processor adapted to receive, via a wireless communication channel, data related to a virtual identity of the target vehicle and to associate the physical identity of the target vehicle with the virtual identity of the target vehicle.
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公开(公告)号:US20230230422A1
公开(公告)日:2023-07-20
申请号:US17578834
申请日:2022-01-19
Applicant: GM Global Technology Operations LLC
Inventor: Mohamed A. Layouni , Bo Yu , Markus Jochim
IPC: G07C5/00 , H04W4/46 , H04W56/00 , B60R16/023 , G07C5/04
CPC classification number: G07C5/008 , H04W4/46 , H04W56/002 , B60R16/023 , G07C5/04 , H04L63/0435
Abstract: A system within an ego vehicle for robust association of a physical identity and a virtual identity of a target vehicle includes a data processor, including a wireless communication module and a visible light communication module, positioned within an ego vehicle, and a plurality of perception sensors, positioned within the ego vehicle and adapted to collect data related to a physical identity of the target vehicle and to communicate the data related to the physical identity of the target vehicle to the data processor via a communication bus, the data processor within the ego vehicle adapted to receive, via a wireless communication channel, data related to a virtual identity of the target vehicle, associate the physical identity of the target vehicle with the virtual identity of the target vehicle, and initiate, via the wireless communication channel and a visible light communication channel, a challenge-response protocol between the ego vehicle and the target vehicle.
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88.
公开(公告)号:US20230162602A1
公开(公告)日:2023-05-25
申请号:US17534721
申请日:2021-11-24
Applicant: GM Global Technology Operations LLC
Inventor: Vivek Vijaya Kumar , Bo Yu , Hariharan Krishnan , Kamran Ali , Fan Bai
IPC: G08G1/0967 , G08G1/01 , B60W60/00 , G06V20/54 , H04W4/44
CPC classification number: G08G1/096708 , B60W60/001 , G06V20/54 , G08G1/0116 , H04W4/44 , B60W2520/06 , B60W2554/4041 , B60W2554/4042 , B60W2554/4045 , B60W2556/45 , G06V2201/08
Abstract: A communication system that determines a context and an intent of a specific remote vehicle located in a surrounding environment of a host vehicle includes one or more controllers for receiving sensed perception data including sensed perception data. The one or more controllers execute instructions to determine a plurality of vehicle parameters related to the specific remote vehicle. The the one or more controllers execute instructions to associate the specific remote vehicle with a specific lane of travel of a roadway based on map data. The one or more controllers determines possible maneuvers, possible egress lanes, and a speed limit for the specific remote vehicle for the specific lane of travel based on the map data, and determines the context and the intent of the specific remote vehicle based on the plurality of vehicle parameters, the possible maneuvers, the possible egress lanes for the specific remote vehicle, and the speed limit related to the specific remote vehicle.
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89.
公开(公告)号:US11631325B2
公开(公告)日:2023-04-18
申请号:US16550808
申请日:2019-08-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Fan Bai , Bo Yu , David A. Craig , Ashok Yendluri
Abstract: Systems and methods are provided for interpreting traffic information. A method includes: receiving, by a processor, visual data from vehicles, wherein the visual data is associated with an intersection of a roadway having one or more lanes; receiving, by the processor, vehicle data from the vehicles, wherein the vehicle data is associated with the intersection of the roadway; determining, by the processor, a first state of a traffic light associated with the intersection based on the visual data; determining, by the processor, a second state of the traffic light associated with the intersection based on the vehicle data; correlating, by the processor, the first state and the second state based on a time synchronization; assigning, by the processor, the traffic light to a lane of the roadway based on the correlating; and communicating, by the processor, the traffic light to lane assignment for use in controlling a vehicle.
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公开(公告)号:US11521398B2
公开(公告)日:2022-12-06
申请号:US16696152
申请日:2019-11-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Bo Yu , Ashok Yendluri , Donald K. Grimm , Fan Bai , Jonathan Wilson , Quan Zhang
Abstract: A system and method for locating a traffic light at a host vehicle. A probe vehicle obtains image data on an intersection that includes the traffic light when the probe vehicle is at the intersection and identifies the traffic light in the intersection from the data. A remote processor creates an observed node in a digital map corresponding to the traffic light and updates a mapped position of a mapped node within the digital map based on an observed position of the observed node. The host vehicle uses the mapped node of the digital map to locate the traffic light when the host vehicle is at the intersection.
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