Hierarchical Optimization-based Coordinated Control of Traffic Rules and Mixed Traffic in Multi-Intersection Environments

    公开(公告)号:US20240331535A1

    公开(公告)日:2024-10-03

    申请号:US18180888

    申请日:2023-03-09

    CPC classification number: G08G1/091 G08G1/0112 G08G1/0145 G08G1/081

    Abstract: The present disclosure provides a system and a method for jointly controlling one or multiple connected and automated vehicles (CAVs) and one or multiple human-driven vehicles (HDVs) subject to integer constraints for crossing each of multiple intersections on a road. The method comprises collecting digital representation of states of each of the CAVs, HDVs, and traffic signs, solving an optimization problem jointly optimizing traffic flows based on a macroscopic traffic flow model in a centralized traffic controller (CTC) subject to convex relaxation of the integer constraints, solving a multi-variable mixed-integer programming (MIP) problem in each of multiple intersection traffic controllers (ITCs) optimizing a cost function and minimizing tracking errors in traffic flow values of a microscopic traffic flow model with respect to relaxed traffic flow values from the CTC, and transmitting the optimized values of the control commands to the corresponding CAVs and corresponding traffic signs.

    Interactive traffic system, method and control devices

    公开(公告)号:US12067870B2

    公开(公告)日:2024-08-20

    申请号:US17448889

    申请日:2021-09-26

    CPC classification number: G08G1/09

    Abstract: A traffic control device system and method for communicating with autonomous and semi-autonomous vehicles. The traffic control device includes a base adapted to be placed on a surface, a body portion joined to the base portion and extending therefrom, and a communication module joined to or integral with the base or body portion. The communication module includes a transmitter adapted to transmit a signal from the traffic control device to one or more autonomous or semi-autonomous vehicles, wherein the signal includes information that can be used by the one or more autonomous or semi-autonomous vehicles to affect or control at least one system of the vehicle.

    Support device
    20.
    发明授权

    公开(公告)号:US12043276B2

    公开(公告)日:2024-07-23

    申请号:US17893694

    申请日:2022-08-23

    Inventor: Yoshitaka Kijima

    Abstract: A support device is a support device by which a support operation to support a host vehicle to stop is performable. The support device includes: a determination unit configured to, when a light color of a traffic light is a light color that requires the host vehicle to stop, determine whether or not alerting on the traffic light is performed as the support operation, based on a speed of the host vehicle and a distance from a current position of the host vehicle to a stop reference position; and a recognition unit configured to recognize a surrounding state around the host vehicle. The stop reference position in a case where a crossing pedestrian is recognized by the recognition unit is closer to the host vehicle than the stop reference position in a case where no pedestrian is recognized by the recognition unit.

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