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Intelligent road infrastructure system (IRIS): systems and methods

專利號
US10867512B2
公開日期
2020-12-15
申請人
CAVH LLC(US WI Fitchburg)
發(fā)明人
Bin Ran; Yang Cheng; Shen Li; Zhen Zhang; Fan Ding; Huachun Tan; Yuankai Wu; Shuoxuan Dong; Linhui Ye; Xiaotian Li; Tianyi Chen; Kunsong Shi
IPC分類
G08G1/09; G08G1/0967; B60W30/165; G08G1/16
技術領域
rsu,rsus,module,vehicle,lane,iris,tcu,tcc,data,traffic
地域: WI WI Fitchburg

摘要

The invention provides systems and methods for an Intelligent Road Infrastructure System (IRIS), which facilitates vehicle operations and control for connected automated vehicle highway (CAVH) systems. IRIS systems and methods provide vehicles with individually customized information and real-time control instructions for vehicle to fulfill the driving tasks such as car following, lane changing, and route guidance. IRIS systems and methods also manage transportation operations and management services for both freeways and urban arterials. In some embodiments, the IRIS comprises or consists of one of more of the following physical subsystems: (1) Roadside unit (RSU) network, (2) Traffic Control Unit (TCU) and Traffic Control Center (TCC) network, (3) vehicle onboard unit (OBU), (4) traffic operations centers (TOCs), and (5) cloud information and computing services. The IRIS manages one or more of the following function categories: sensing, transportation behavior prediction and management, planning and decision making, and vehicle control. IRIS is supported by real-time wired and/or wireless communication, power supply networks, and cyber safety and security services.

說明書

  • a. Speed and headway keeping: keep the minimal headway and maximal speed on the lane to reach the max possible traffic capacity;
  • b. Conflict avoidance: detects potential accident/conflicts on the lane, and then sends a warning message and conflict avoid instructions to vehicles. Under such situations, vehicles must follow the instructions from the lane management system;
  • c. Lane keeping: keep vehicles driving on the designated lane;
  • d. Curvature/elevation control: make sure vehicles keep and adjust to the proper speed and angle based on factors such as road geometry, pavement condition;
  • e. Lane changing control: coordinate vehicles lane changing in proper orders, with the minimum disturbance to the traffic flow;
  • f. System boundary control: vehicle permission verification before entering, and system takeover and handoff mechanism for vehicle entering and exiting, respectively;
  • g. Platoon control and fleet management;
  • h. System failure safety measures: (1) the system provides enough response time for a driver or the vehicle to take over the vehicle control during a system fail, or (2) other measures to stop vehicles safely; and
  • i. Task priority management: providing a mechanism to prioritize various control objectives.
  • In some embodiments, the RSU has one or more module configurations including, but not limited to:

      • a. Sensing module for driving environment detection;

    權利要求

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