公开(公告)号：US20230031251A1

公开(公告)日：2023-02-02

申请号：US17389489

申请日：2021-07-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shu Chen ,  Donald K. Grimm

IPC: G08G1/01 ,  G01C21/34 ,  G08G1/052

Abstract: A system includes a processor and a memory storing instructions which when executed by the processor configure the processor to receive telemetry data from a vehicle being driven in a road segment, detect lane changes made by the vehicle in the road segment based on the telemetry data, and characterize the road segment and driver behavior based on the lane changes and the telemetry data.

公开(公告)号：US20220394586A1

公开(公告)日：2022-12-08

申请号：US17332806

申请日：2021-05-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jinzhu Chen ,  Lakshmi V. Thanayankizil ,  Shu Chen ,  Chuan Li ,  Donald K. Grimm

IPC: H04W36/32 ,  H04W48/20 ,  H04W48/16

Abstract: Systems and method are provided for transmitting data from a vehicle using a Wi-Fi network. A method includes: collecting, by a processor, performance data associated with a plurality of access points in the Wi-Fi network; segmenting, by a processor, a route into a plurality of route segments; mapping, by a processor, the plurality of access points to the plurality of route segments; selecting, by a processor, a set of access points from the plurality of access points based on the collected performance data, wherein the set of access points comprises a selected access point for each route segment of the plurality of route segments; predicting, by a processor, a scanning channel based on the set of access points and a current location of the vehicle; and selectively transmitting, by a processor, packet data based on the set of access points, the scanning channel, and the associated performance data.

公开(公告)号：US20220366782A1

公开(公告)日：2022-11-17

申请号：US17322270

申请日：2021-05-17

Applicant: GM Global Technology Operations LLC

Inventor： Donald K. Grimm ,  Richard Gordon ,  Chuan Li ,  Shu Chen ,  Fan Bai

IPC: G08G1/01

Abstract: A system, method and server for a controlling a relation between a vehicle and traffic flow over a road segment. The system includes a telemetric device of the vehicle and a processor of the server. The telemetric device obtains telemetric data related to the road segment being traversed by the vehicle. The processor determines a property of the road segment based on the telemetric data and a road profile for the road segment, determines a disruption score indicative of a level of disruption in the traffic flow for the road segment based on the property, and outputs a notification signal when the disruption score is above a selected disruption threshold. The notification signal is usable for controlling the relation between the vehicle and the traffic flow.

公开(公告)号：US20200234585A1

公开(公告)日：2020-07-23

申请号：US16251669

申请日：2019-01-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Fan Bai ,  Shu Chen ,  Donald K. Grimm ,  Jinzhu Chen ,  Bo Yu ,  David E. Bojanowski

IPC: G08G1/0967 ,  G08G1/01 ,  G05D1/00 ,  G05D1/02

Abstract: Methods and apparatus are provided for controlling a vehicle. In one embodiment, a method includes: receiving, by a processor, vehicle position data from the vehicle; processing, by the processor, vehicle position data with vehicle position data from other vehicles to determine a lane topology; processing, by the processor, the vehicle position data to determine traffic conditions within a lane of the lane topology; generating, by the processor, a map for controlling the vehicle based on the lane topology and the traffic conditions.

公开(公告)号：US20200050209A1

公开(公告)日：2020-02-13

申请号：US16142680

申请日：2018-09-26

Applicant: GM Global Technology Operations LLC

Inventor： Fan Bai ,  Shu Chen ,  Donald K. Grimm ,  David E. Bojanowski ,  Bo Yu ,  Jinzhu Chen

IPC: G05D1/02 ,  G01C21/34 ,  G05D1/00 ,  B60W30/14

Abstract: Presented are systems and methods for deriving speed limits of designated road segments by mining large-scale vehicle data traces. A method for controlling operation of a motor vehicle includes: determining a current location of the vehicle; determining a designated road segment corresponding to the vehicle's location; receiving host speed data indicative of the vehicle's speed while travelling on the road segment for a calibrated timeframe; receiving crowd-sourced speed data indicative of the speeds of participatory vehicles while travelling on the road segment for the calibrated timeframe; accumulating a speed distribution function for the road segment based on the host and crowd-sourced speed data; generating a finite mixture model from the speed distribution function to estimate a speed limit range; selecting a speed limit candidate from the estimated speed limit range; and transmitting command signals to a vehicle subsystem to execute a control operation based on the selected speed limit candidate.