Method and apparatus for monitoring of an autonomous vehicle

    公开(公告)号:US10678247B2

    公开(公告)日:2020-06-09

    申请号:US15688451

    申请日:2017-08-28

    Abstract: An autonomic vehicle control system includes a perception module of a spatial monitoring system that is disposed to monitor a spatial environment proximal to the autonomous vehicle. A method for evaluating vehicle dynamics operation includes determining a desired trajectory for the autonomous vehicle, wherein the desired trajectory includes desired vehicle positions including an x-position, a y-position and a heading. Vehicle control commands are determined based upon the desired trajectory, and include a commanded steering angle, an acceleration command and a braking command. Actual vehicle states responsive to the vehicle control commands are determined. An estimated trajectory is determined based upon the actual vehicle states, and a trajectory error is determined based upon a difference between the desired trajectory and the estimated trajectory. The trajectory error is monitored over a time horizon, and a first state of health (SOH) is determined based upon the trajectory error over the time horizon.

    Method and apparatus for monitoring of an autonomous vehicle

    公开(公告)号:US10558217B2

    公开(公告)日:2020-02-11

    申请号:US15688429

    申请日:2017-08-28

    Abstract: A perception module of a spatial monitoring system to monitor and characterize a spatial environment proximal to an autonomous vehicle is described. A method for evaluating the perception module includes capturing and storing a plurality of frames of data associated with a driving scenario for the autonomous vehicle, and executing the perception module to determine an actual spatial environment for the driving scenario, wherein the actual spatial environment for the driving scenario is stored in the controller. The perception module is executed to determine an estimated spatial environment for the driving scenario based upon the stored frames of data associated with the driving scenario, and the estimated spatial environment is compared to the actual spatial environment for the driving scenario. A first performance index for the perception module is determined based upon the comparing, and a fault can be detected.

    Hierarchical fault diagnosis and prognosis of a system

    公开(公告)号:US10316812B2

    公开(公告)日:2019-06-11

    申请号:US15492672

    申请日:2017-04-20

    Abstract: A method for diagnosing a fault mode in a system includes recording a hierarchical precedence rule assigning a priority level to fault modes of the system, and recording, in a fault report matrix, fault reports indicative of a corresponding one or more of the fault modes. The method also includes using the hierarchical precedence rule to determine the assigned relative priority level for the fault reports in response to a predetermined condition, e.g., a requested engine starting event, and identifying a root cause subsystem as a subsystem having the highest assigned priority level. A control action executed via the controller identifies the root cause subsystem by recording a diagnostic code and/or transmitting a message. The system is also disclosed, as is a computer-readable medium programmed with instructions embodying the method.

    METHOD AND APPARATUS FOR COORDINATING DEPLOYMENT OF A FLEET OF AUTONOMOUS VEHICLES

    公开(公告)号:US20190064846A1

    公开(公告)日:2019-02-28

    申请号:US15688416

    申请日:2017-08-28

    Abstract: A scheduling controller in communication with a plurality of autonomous vehicles is described, and includes an operator request compiler, a fleet state-of-health database, an environmental conditions compiler and a fleet scheduling controller. The fleet scheduling controller is configured to deploy the autonomous vehicles based upon inputs from the operator request compiler, the fleet state-of-health database and the environmental conditions compiler. A process for coordinating a fleet of autonomous vehicles includes determining states of health for the autonomous vehicles, and determining a desired autonomous vehicle use requirement from each of a plurality of operators that are associated with the autonomous vehicles. A usage schedule for each of the autonomous vehicles is determined based upon the states of health and the desired autonomous vehicle use requirements from the operators. The autonomous vehicles are deployed based upon the usage schedule.

    Method and apparatus for isolating a fault in a controller area network
    37.
    发明授权
    Method and apparatus for isolating a fault in a controller area network 有权
    用于隔离控制器区域网络中的故障的方法和装置

    公开(公告)号:US09354965B2

    公开(公告)日:2016-05-31

    申请号:US14333374

    申请日:2014-07-16

    Abstract: A method for monitoring controller area network (CAN) on a mobile system includes identifying links and associated nodes between all the nodes of the CAN, and ranking all the links according to their order of connection to the monitoring controller, including assigning lower ranks to ones of the links proximal to the monitoring controller and assigning higher ranks to ones of the links distal to the monitoring controller. For each of said links, the associated node distal to the monitor is identified. The on-board monitoring controller determines a fault signature for each of the links starting with the link having the highest ranking, said fault signature comprising identified ones of the associated nodes distal to the monitor for each of the corresponding links.

    Abstract translation: 一种用于在移动系统上监视控制器局域网(CAN)的方法包括识别CAN的所有节点之间的链路和相关联的节点,并根据其与监控控制器的连接顺序对所有链路进行排序,包括分配较低的等级 的监控控制器附近的链接,并将较高级别分配给远程监控控制器的链路。 对于每个所述链接,识别远离监视器的相关节点。 车载监视控制器确定从具有最高排名的链路开始的每个链路的故障签名,所述故障签名包括每个对应链路的监视器远端的相关联的节点中的已标识的一个。

    SYSTEM FOR GUIDING AN AUTONOMOUS VEHICLE BY A TOWING TAXI

    公开(公告)号:US20230082897A1

    公开(公告)日:2023-03-16

    申请号:US17471323

    申请日:2021-09-10

    Abstract: An autonomous driving system for an autonomous vehicle includes an automated driving controller wirelessly connected to a towing taxi. The automated driving controller determines the autonomous driving system is non-functional. In response to determining the autonomous driving system is non-functional, the automated driving controller generates a notification indicating the autonomous driving system is non-functional. The automated driving controller receives, from the towing taxi, a current data string including a data point corresponding to a current point in time in combination with a predicted data point for each of one or more predicted points of time in the future. The current data string is compared with a previous data string recorded at a previous point in time. In response to determining the current data string matches the previous data string, the automated driving controller determines one or more driving maneuvers for the autonomous vehicle based on the current data string.

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