Method of measuring road performance using headway dynamics

    公开(公告)号:US11862013B2

    公开(公告)日:2024-01-02

    申请号:US17322270

    申请日:2021-05-17

    IPC分类号: G08G1/01

    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.

    TRAFFIC FLOW RISK PREDICTION AND MITIGATION

    公开(公告)号:US20230095539A1

    公开(公告)日:2023-03-30

    申请号:US17448909

    申请日:2021-09-27

    摘要: A method for determining a risk boundary in response to the plurality of indications of hard braking events wherein the risk boundary is indicative of a plurality of speed flow pairs at which a risk of a hard braking event is below a threshold value, determining, at a road segment level, a set of speed flow pairs of average speed and vehicle count and a plurality of indications of hard braking events , determining a host vehicle speed, and performing at least one of reducing the host vehicle speed and increasing a host vehicle following distance in response to the host vehicle speed exceeding the risk boundary for the vehicle flow density.

    IDENTIFYING AND QUANTIFYING CONGESTION WITHIN A TRAFFIC STREAM

    公开(公告)号:US20240304083A1

    公开(公告)日:2024-09-12

    申请号:US18179681

    申请日:2023-03-07

    IPC分类号: G08G1/01 G08G1/0967

    摘要: A system and method of identifying and quantifying congestion within a traffic stream including obtaining telemetric data from a plurality of vehicles traveling within a plurality of normalized road segments, determining a property of each normalized road segment based on the telemetric data and a road profile for each road segment, determining a disruption score indicative of a level of disruption in a traffic flow within each road segment, mapping the road segments within a two-dimensional spatial-temporal grid of cells, wherein each cell represents a normalized road segment at a specified time, for each cell, determining if the traffic flow is congested, identifying a congested traffic stream including a plurality of contiguous cells that have congested traffic flow, quantifying the congested traffic stream, and providing an output signal.

    WEATHER DATA WITH CONNECTED VEHICLES
    5.
    发明公开

    公开(公告)号:US20230194752A1

    公开(公告)日:2023-06-22

    申请号:US17556009

    申请日:2021-12-20

    摘要: A system for providing weather conditions to a target vehicle includes a plurality of sensors mounted within the target vehicle adapted to measure weather conditions at the target vehicle and a computer processor adapted to collect data of weather conditions at the target vehicle from the plurality of sensors mounted within the target vehicle, collect data of measured weather conditions of at least one known location remote from the target vehicle, and build a temporal-spatial effectiveness model adapted to estimate weather conditions of at least one unknown location remote from the target vehicle using the data of weather conditions at the target vehicle and the data of measured weather conditions of the at least one known location remote from the target vehicle.

    Method and system for facilitating uses of codes for vehicle experiences

    公开(公告)号:US11637900B1

    公开(公告)日:2023-04-25

    申请号:US17746286

    申请日:2022-05-17

    IPC分类号: G06F15/16 H04L67/12

    摘要: A method for facilitating uses of a code for vehicle experiences includes receiving code data from the code in a sign. The sign is disposed outside a host vehicle. The method further includes establishing a connection with a service using the code data obtained from the code and in response to establishing the connection with the service, receiving service data. The service data includes information about the service. The method further includes, in response to receiving the service data, controlling the host vehicle according to the service data received after establishing the connection with the service.

    METHOD FOR ASSESSING LATERAL ACCELERATION USING TELEMETRY DATA

    公开(公告)号:US20240294174A1

    公开(公告)日:2024-09-05

    申请号:US18177322

    申请日:2023-03-02

    IPC分类号: B60W40/109 B60W40/105

    摘要: A method for assessing lateral acceleration includes receiving vehicle telemetry data. The vehicle telemetry data includes a plurality of geographical positions along the curved trajectory traveled by the vehicle, the heading of the vehicle at each of the plurality of geographical, and the velocity of the vehicle at each of the plurality of geographical positions. The method further includes determining a curve radius of the curve trajectory traveled by the vehicle using the vehicle telemetry data and determining a lateral acceleration of the vehicle at each of the plurality of geographical positions along the curve trajectory The method further includes converting the lateral acceleration of the vehicle at each of the plurality of geographical positions along the curve trajectory traveled by the vehicle into a g-force.

    METHOD OF MEASURING ROAD PERFORMANCE USING HEADWAY DYNAMICS

    公开(公告)号:US20220366782A1

    公开(公告)日:2022-11-17

    申请号:US17322270

    申请日:2021-05-17

    IPC分类号: G08G1/01

    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.