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    METHODS FOR COGNITIVE SITUATION AWARENESS USING AN ATTENTION-BASED EVENT STRUCTURE
    5.
    发明申请
    METHODS FOR COGNITIVE SITUATION AWARENESS USING AN ATTENTION-BASED EVENT STRUCTURE 有权

    公开(公告)号：US20220219685A1

    公开(公告)日：2022-07-14

    申请号：US17147782

    申请日：2021-01-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Hyukseong Kwon ,  Rajan Bhattacharyya ,  Michael J. Daily

    IPC: B60W30/095 ,  B60W30/09 ,  B60W60/00 ,  B60W40/04

    Abstract: A method of using perception-inspired event generation for situation awareness for a vehicle, including receiving perception input data from a sensor of the vehicle and processing the perception input data to classify and generate parameters related to an external entity in a vicinity of the vehicle. The method includes generating a hierarchical event structure that classifies and prioritizes the perception input data by classifying the external entity into an attention zone and prioritizing the external entity within the attention zone according to a risk level value for the external entity. A higher risk level value indicates a higher priority within the attention zone. The method further includes developing a behavior plan for the vehicle based on the hierarchical event structure.

    NAVIGATION TRAJECTORY USING REINFORCEMENT LEARNING FOR AN EGO VEHICLE IN A NAVIGATION NETWORK
    6.
    发明申请
    NAVIGATION TRAJECTORY USING REINFORCEMENT LEARNING FOR AN EGO VEHICLE IN A NAVIGATION NETWORK 有权

    公开(公告)号：US20220144309A1

    公开(公告)日：2022-05-12

    申请号：US17094255

    申请日：2020-11-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Tiffany J. Hwu ,  Iman Mohammadrezazadeh ,  Michael J. Daily ,  Rajan Bhattacharyya

    IPC: B60W60/00 ,  G06N3/04 ,  B60W30/12

    Abstract: An ego vehicle includes decider modules and a grader module coupled to a resolver module. The decider modules generate trajectory decisions at a current time, generate a current two-dimensional slice of a flat space around the ego vehicle, generate future two-dimensional slices of the flat space by projecting the current two-dimensional slice of the flat space forward in time, and generate a three-dimensional state space by stacking the current two-dimensional slice and the future two-dimensional slices. The grader module generates rewards for the trajectory decisions based on a recent behavior of an ego vehicle. The resolver module selects a final trajectory decision for the ego vehicle from the trajectory decisions based on the three-dimensional state space and the rewards. The current two-dimensional slice includes a current ego vehicle location and current neighboring vehicle locations. The future two-dimensional slices include future ego vehicle locations and future neighboring vehicle locations.

    HYPERASSOCIATION IN EPISODE MEMORY
    7.
    发明申请
    HYPERASSOCIATION IN EPISODE MEMORY 审中-公开

    公开(公告)号：US20200310423A1

    公开(公告)日：2020-10-01

    申请号：US16365517

    申请日：2019-03-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Youngkwan Cho ,  Rajan Bhattacharyya ,  Michael J. Daily

    IPC: G05D1/00 ,  G05D1/02 ,  G06N3/02

    Abstract: An autonomous vehicle, system and method of operating the autonomous vehicle. The system includes an episodic memory, a hyper-association module and a navigation system. The episodic memory stores a plurality of episodes, recalls a plurality of candidate episodes in response to receiving a partial prefix and recalls a hypothesis episode in response to receiving an intermediate episode. The hyper-association module receives the plurality of candidate episodes from the episodic memory and obtains the intermediate episode from the plurality of candidate episodes. The navigation system navigates the autonomous vehicle using the hypothesis episode.

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