公开(公告)号：US20230222901A1

公开(公告)日：2023-07-13

申请号：US17575017

申请日：2022-01-13

Applicant: GM Global Technology Operations LLC

Inventor： Fan Bai ,  Donald K. Grimm ,  Paul E. Krajewski ,  Jiang-Ling Du ,  Mason David Gemar

IPC: G08G1/01 ,  G08G1/048

CPC classification number: G08G1/0145 ,  G08G1/048 ,  G08G1/0133 ,  G08G1/0141

Abstract: A computer is provided for a system for detecting, characterizing, and mitigating road network congestion. The system includes a plurality of motor vehicles. Each motor vehicle includes a telematics control unit (TCU) for generating one or more location signals for a location of the associated motor vehicle and one or more event signals for an event related to the associated motor vehicle. The computer includes one or more processors for receiving the location signal and/or the event signal from the TCU of the associated motor vehicles. The computer further includes a non-transitory computer readable storage medium (CRM) including instructions, such that the processor is programmed to identify a location of the road network congestion at a current time step. The processor is further programmed to track the road network congestion and predict the road network congestion at a next time step.

公开(公告)号：US20250035463A1

公开(公告)日：2025-01-30

申请号：US18359017

申请日：2023-07-26

Applicant: GM Global Technology Operations LLC

Inventor： Bo Yu ,  Gui Chen ,  Fan Bai ,  Shuqing Zeng ,  Joon Hwang ,  Mason David Gemar

IPC: G01C21/00 ,  B60W60/00

Abstract: A method for crowd-sourcing lane line map data for a vehicle includes receiving a plurality of observations. The method also includes classifying the plurality of observations into a plurality of observation categories. Each of the plurality of observation categories includes at least one of the plurality of observations. The method also includes determining a plurality of aligned point clouds based at least in part on the plurality of observations. One of the plurality of aligned point clouds corresponds to each of the plurality of observation categories. The method also includes determining a plurality of lane line maps based at least in part on the plurality of aligned point clouds. One of the plurality of lane line maps corresponds to each of the plurality of aligned point clouds. The method also includes updating a map database based at least in part on the plurality of lane line maps.

公开(公告)号：US11845443B2

公开(公告)日：2023-12-19

申请号：US17463698

申请日：2021-09-01

Applicant: GM Global Technology Operations LLC

Inventor： Mubassira Khan ,  Najah Ghalyan ,  Mason David Gemar ,  Kaydee Hartmann

IPC: B60W40/10 ,  G08G1/07

CPC classification number: B60W40/10 ,  G08G1/07 ,  B60W2420/42 ,  B60W2552/30 ,  B60W2552/53 ,  B60W2554/4049

Abstract: A system, map server and method of navigating a vehicle through an intersection. The map server includes a remote processor and a communication device. The remote processor determines a first road edge for a first road entering an intersection and a second road edge for a second road entering the intersection. The remote processor constructs an intersection edge that connects a first point on the first road edge to a second point on the second road edge. The communication device communicates the intersection edge to the vehicle. A vehicle processor at the vehicle navigates the vehicle through the intersection using the intersection edge.

公开(公告)号：US12039862B2

公开(公告)日：2024-07-16

申请号：US17575017

申请日：2022-01-13

Applicant: GM Global Technology Operations LLC

Inventor： Fan Bai ,  Donald K. Grimm ,  Paul E. Krajewski ,  Jiang-Ling Du ,  Mason David Gemar

IPC: G08G1/00 ,  G08G1/01 ,  G08G1/048

CPC classification number: G08G1/0145 ,  G08G1/0133 ,  G08G1/0141 ,  G08G1/048

Abstract: A computer is provided for a system for detecting, characterizing, and mitigating road network congestion. The system includes a plurality of motor vehicles. Each motor vehicle includes a telematics control unit (TCU) for generating one or more location signals for a location of the associated motor vehicle and one or more event signals for an event related to the associated motor vehicle. The computer includes one or more processors for receiving the location signal and/or the event signal from the TCU of the associated motor vehicles. The computer further includes a non-transitory computer readable storage medium (CRM) including instructions, such that the processor is programmed to identify a location of the road network congestion at a current time step. The processor is further programmed to track the road network congestion and predict the road network congestion at a next time step.

公开(公告)号：US20240219201A1

公开(公告)日：2024-07-04

申请号：US18149427

申请日：2023-01-03

Applicant: GM Global Technology Operations LLC

Inventor： Fan Bai ,  Mason David Gemar ,  Vivek Vijaya Kumar ,  Joon Hwang ,  Bo Yu

IPC: G01C21/00 ,  G06V20/56

CPC classification number: G01C21/3859 ,  G01C21/3841 ,  G06V20/56

Abstract: A method and system of map data reconciliation in connected vehicles. The method includes processing information to detect a same object; determining an identification of the same object; determining a confidence level of the identification of the same object; determining a probability mass function (PMF) of the identification of the same object using Dempster-Shafer Theory; determining a most probably identification of the same object based on the PMF; and communicating the most probably identification of the same object to a vehicle to implement a vehicle function. The system includes a conflict resolution module configured to receive confidence levels from multiple vehicles detecting the same object and to determine a reconciled identification of the same object using an algorithm based on Dempster-Shafer Theory, and a weight calculation module configured to apply a weight function based on a scene context weight function and on a historical score of the vehicles.

公开(公告)号：US20240385010A1

公开(公告)日：2024-11-21

申请号：US18318247

申请日：2023-05-16

Applicant: GM Global Technology Operations LLC

Inventor： Gui Chen ,  Bo Yu ,  Shuqing Zeng ,  Fan Bai ,  Joon Hwang ,  Vivek Vijaya Kumar ,  Mason David Gemar ,  Carl P. Darukhanavala

IPC: G01C21/00

Abstract: A system for fusing two or more versions of map data together includes one or more central computers that receive road network data representing a road network for a predefined geofenced area. The central computers compute a plurality of points that are each positioned at a predetermined distance from one another. The central computers create a plurality of bounding boxes for the road network based on the plurality of points and create a set of closest matched map data points for each bounding box that is part of the road network by executing a map-matching registration algorithm to align the two or more versions of map data with one another. The central computers execute a maximum likelihood estimation algorithm to determine probability distribution parameters of the set of closest matched map data points compared to the ground truth map data.

公开(公告)号：US11893882B2

公开(公告)日：2024-02-06

申请号：US17581528

申请日：2022-01-21

Applicant: GM Global Technology Operations LLC

Inventor： Fan Bai ,  Donald K. Grimm ,  Paul E. Krajewski ,  Jiang-Ling Du ,  Mason David Gemar

IPC: G08G1/01

CPC classification number: G08G1/0112 ,  G08G1/0129 ,  G08G1/0133

Abstract: A system is provided for mitigating a road network congestion. The system includes a plurality of motor vehicles positioned in associated locations in a road network. Each vehicle has one or more sensors generating an input and a Telematics Control Unit (TCU) for generating at least one location signal for a location of the associated motor vehicle and at least one event signal for an event related to the associated motor vehicle, with the location signal and the event signal corresponding to a High Speed Vehicle Telemetry Data (HSVT data) based on the input from the sensors. The system further includes a computer, which communicates with a display device and the TCUs. The computer includes a processor and a computer readable medium including instructions, such that the processor is programmed to identify the congestion and determine that the congestion is a recurring or a non-recurring congestion.

公开(公告)号：US20230066167A1

公开(公告)日：2023-03-02

申请号：US17463698

申请日：2021-09-01

Applicant: GM Global Technology Operations LLC

Inventor： Mubassira Khan ,  Najah Ghalyan ,  Mason David Gemar ,  Kaydee Hartmann

IPC: B60W40/10 ,  G08G1/07

Abstract: A system, map server and method of navigating a vehicle through an intersection. The map server includes a remote processor and a communication device. The remote processor determines a first road edge for a first road entering an intersection and a second road edge for a second road entering the intersection. The remote processor constructs an intersection edge that connects a first point on the first road edge to a second point on the second road edge. The communication device communicates the intersection edge to the vehicle. A vehicle processor at the vehicle navigates the vehicle through the intersection using the intersection edge.

公开(公告)号：US20250137815A1

公开(公告)日：2025-05-01

申请号：US18494097

申请日：2023-10-25

Applicant: GM Global Technology Operations LLC

Inventor： Gui Chen ,  Bo Yu ,  Shuqing Zeng ,  Joon Hwang ,  Mason David Gemar ,  Fan Bai ,  Vivek Vijaya Kumar

IPC: G01C21/00

Abstract: A system for resolving discrepancies in map data includes one or more central computers in wireless communication with one or more vehicles. The one or more central computers are programmed to receive a first map dataset and a second map dataset. The one or more central computers are further programmed to receive a plurality of crowdsourced map datasets. Each of the plurality of crowdsourced map datasets represents the predefined geographical area. The one or more central computers are further programmed to compare each of the plurality of crowdsourced map datasets with the first map dataset and the second map dataset to determine one or more common lane lines. The one or more central computers are further programmed to determine a fused map dataset based on the first map dataset, the second map dataset, the plurality of crowdsourced map datasets, and the one or more common lane lines.

公开(公告)号：US20250102320A1

公开(公告)日：2025-03-27

申请号：US18473607

申请日：2023-09-25

Applicant: GM Global Technology Operations LLC

Inventor： Shuqing Zeng ,  Fan Bai ,  Bo Yu ,  Gui Chen ,  Cem U. Saraydar ,  Mason David Gemar

IPC: G01C21/00 ,  G01C21/32

Abstract: A system for fusing two or more versions of map data together includes one or more central computers that receive road network data representing a road network for a predefined geofenced area. The central computers receive road network data that includes a discrete random curve that represents lane markings. The discrete random curve includes a plurality of state vectors that are each defined by a respective location and tangent angle. The central computers estimate the position for the state vectors of the discrete random curve based on a signed distance and the tangent angle by minimizing a spatial Kalman filter cost function and execute a Kalman smoothening function to estimate the position and the tangent angle for the state vectors that are part of the discrete random curve, where the state vectors each represent a map point of the fused map data.