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公开(公告)号：US11862013B2
公开(公告)日：2024-01-02
申请号：US17322270
申请日：2021-05-17
发明人： Donald K. Grimm , Richard Gordon , Chuan Li , Shu Chen , Fan Bai
IPC分类号： G08G1/01
CPC分类号： G08G1/0145 , G08G1/0133 , G08G1/0141
摘要： 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.
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公开(公告)号：US20210142659A1
公开(公告)日：2021-05-13
申请号：US16680973
申请日：2019-11-12
发明人： Shu Chen , Jinzhu Chen , Mubassira Khan , Mason D. Gemar
IPC分类号： G08G1/01 , G08G1/0967 , G08G1/13
摘要： Near-real-time monitoring and analysis of a road segment are described, and include a remotely-located controller that is arranged to wirelessly communicate with a plurality of connected vehicles. This includes periodically capturing vehicle positional data and associated temporal data that are communicated from a subset of the connected vehicles, wherein the subset of the connected vehicles traverse a road segment associated with the digitized roadway map. Vehicle positional data and the associated temporal data are analyzed over a period of time, including evaluating the vehicle positional data in context of the digitized roadway map. Occurrence of an anomalous traffic pattern for the road segment can be detected based upon the evaluating of the vehicle positional data in context of the digitized roadway map and the associated temporal data. A control action is executed based upon detection of the occurrence of the anomalous traffic pattern for the road segment.
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公开(公告)号：US20210012660A1
公开(公告)日：2021-01-14
申请号：US16508943
申请日：2019-07-11
发明人： Shu Chen , Jinzhu Chen , Fan Bai , Donald K. Grimm
摘要： In one example implementation, a computer-implemented method includes receiving, by a host processing device, timestamps from a vehicle processing system of a target vehicle, the timestamps being determined based at least in part on parking area data for a target parking area and vehicle data for the target vehicle. The method further includes calculating, by the host processing device, an arrival rate and a service rate based on the timestamps. The method further includes calculating, by the host processing device, a probability of parking availability for the target parking area based at least in part on the arrival rate and the service rate. The method further includes controlling, by the host processing device, the vehicle based at least in part on the probability of parking availability for the target parking area.
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公开(公告)号：US12111176B2
公开(公告)日：2024-10-08
申请号：US17821898
申请日：2022-08-24
发明人： Bo Yu , Joon Hwang , Gui Chen , Carl P. Darukhanavala , Vivek Vijaya Kumar , Shu Chen , Donald K. Grimm , Fan Bai
CPC分类号： G01C21/3822 , G01C21/3841 , G01C21/3878
摘要： 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：US20240094411A1
公开(公告)日：2024-03-21
申请号：US17933895
申请日：2022-09-21
发明人： Gui Chen , Shu Chen , Bo Yu , Joon Hwang , Carl P. Darukhanavala , Vivek Vijaya Kumar
CPC分类号： G01S19/396 , G01S19/40
摘要： A global positioning system (GPS)-bias detection and reduction system including a GPS-bias model having GPS statistical data creating a database representing data collected from a vehicle group having thousands or multiple thousands of vehicles saved in a database. At least one newly collected vehicle GPS data point is compared to the GPS statistical data to reduce negative effects of GPS-bias and to update the vehicle GPS-bias correction based on a previous GPS-bias model. A selected road node and a segment of a roadway have a map matching performed using a nearest service from a collection location of the GPS statistical data. A GPS-bias is calculated using a look-up of the database. An estimated horizontal position error (EHPE) defining a quality indicator is applied to distinguish a good quality GPS statistical data from a poor quality GPS statistical data.
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公开(公告)号：US11328596B2
公开(公告)日：2022-05-10
申请号：US16508943
申请日：2019-07-11
发明人： Shu Chen , Jinzhu Chen , Fan Bai , Donald K. Grimm
摘要： In one example implementation, a computer-implemented method includes receiving, by a host processing device, timestamps from a vehicle processing system of a target vehicle, the timestamps being determined based at least in part on parking area data for a target parking area and vehicle data for the target vehicle. The method further includes calculating, by the host processing device, an arrival rate and a service rate based on the timestamps. The method further includes calculating, by the host processing device, a probability of parking availability for the target parking area based at least in part on the arrival rate and the service rate. The method further includes controlling, by the host processing device, the vehicle based at least in part on the probability of parking availability for the target parking area.
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公开(公告)号：US11117589B2
公开(公告)日：2021-09-14
申请号：US16260582
申请日：2019-01-29
发明人： Jinzhu Chen , Shu Chen , Fan Bai , Bakhtiar B. Litkouhi
IPC分类号： B60G17/016 , B60W40/076 , G01S19/42
摘要： A system and method for determining a roadway bank angle based on vehicle information. The method may include the steps of: obtaining vehicle information from at least one vehicle, the vehicle information is obtained from at least one of a global navigational satellite system (GNSS) receiver and one or more onboard vehicle sensors, and the GNSS receiver and the one or more onboard vehicle sensors are installed in the at least one vehicle; performing a roadway bank angle determination process using the obtained vehicle information to obtain a roadway bank angle; and updating a representative roadway bank angle based on the roadway bank angle.
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公开(公告)号：US20200239000A1
公开(公告)日：2020-07-30
申请号：US16260582
申请日：2019-01-29
发明人： Jinzhu Chen , Shu Chen , Fan Bai , Bakhtiar B. Litkouhi
IPC分类号： B60W40/076 , G01S19/42
摘要： A system and method for determining a roadway bank angle based on vehicle information. The method may include the steps of: obtaining vehicle information from at least one vehicle, the vehicle information is obtained from at least one of a global navigational satellite system (GNSS) receiver and one or more onboard vehicle sensors, and the GNSS receiver and the one or more onboard vehicle sensors are installed in the at least one vehicle; performing a roadway bank angle determination process using the obtained vehicle information to obtain a roadway bank angle; and updating a representative roadway bank angle based on the roadway bank angle.
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公开(公告)号：US20200064846A1
公开(公告)日：2020-02-27
申请号：US16107272
申请日：2018-08-21
发明人： Shu Chen , Fan Bai , Donald K. Grimm , Jinzhu Chen , Bo Yu , David E. Bojanowski
摘要： Presented are systems and methods for extracting lane-level information of designated road segments by mining vehicle dynamics data traces. A method for controlling operation of a motor vehicle includes: determining the vehicle's location; identifying a road segment corresponding to the vehicle's location; receiving road-level data associated with this road segment; determining a turning angle and centerline for the road segment; receiving vehicle data indicative of vehicle locations and dynamics for multiple vehicles travelling on the road segment; determining, from this vehicle data, trajectory data indicative of start points, end points, and centerline offset distances for these vehicles; identifying total driving lanes for the road segment by processing the trajectory data with a clustering algorithm given the turning angle and centerline; extracting virtual trajectories for the driving lanes; and commanding a vehicle subsystem to execute a control operation based on an extracted virtual trajectory for at least one driving lane.
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公开(公告)号：US10761535B2
公开(公告)日：2020-09-01
申请号：US16107272
申请日：2018-08-21
发明人： Shu Chen , Fan Bai , Donald K. Grimm , Jinzhu Chen , Bo Yu , David E. Bojanowski
摘要： Presented are systems and methods for extracting lane-level information of designated road segments by mining vehicle dynamics data traces. A method for controlling operation of a motor vehicle includes: determining the vehicle's location; identifying a road segment corresponding to the vehicle's location; receiving road-level data associated with this road segment; determining a turning angle and centerline for the road segment; receiving vehicle data indicative of vehicle locations and dynamics for multiple vehicles travelling on the road segment; determining, from this vehicle data, trajectory data indicative of start points, end points, and centerline offset distances for these vehicles; identifying total driving lanes for the road segment by processing the trajectory data with a clustering algorithm given the turning angle and centerline; extracting virtual trajectories for the driving lanes; and commanding a vehicle subsystem to execute a control operation based on an extracted virtual trajectory for at least one driving lane.
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