Assessing surprise for autonomous vehicles

    公开(公告)号:US11926332B1

    公开(公告)日:2024-03-12

    申请号:US17946973

    申请日:2022-09-16

    Applicant: Waymo LLC

    Abstract: Aspects of the disclosure provide for controlling an autonomous vehicle. For instance, a first probability distribution may be generated for the vehicle at a first future point in time using a generative model for predicting expected behaviors of objects and a set of characteristics for the vehicle at an initial time expected to be perceived by an observer. Planning system software of the vehicle may be used to generate a trajectory for the vehicle to follow. A second probability distribution may be generated for a second future point in time using the generative model based on the trajectory and a set of characteristics for the vehicle at the first future point expected to be perceived by the observer. A surprise assessment may be generated by comparing the first probability distribution to the second probability distribution. The vehicle may be controlled based on the surprise assessment.

    TRAJECTORY LIMITING FOR AUTONOMOUS VEHICLES

    公开(公告)号:US20240416958A1

    公开(公告)日:2024-12-19

    申请号:US18815952

    申请日:2024-08-27

    Applicant: Waymo LLC

    Abstract: Aspects of the disclosure provide a method of generating and following planned trajectories for an autonomous vehicle. For instance, a baseline for a planned trajectory that the autonomous vehicle can use to follow a route to a destination may be determined. A stopping point corresponding to a traffic control that will cause the autonomous vehicle to come to a stop using the baseline may be determined. Sensor data identifying objects and their locations may be received. A plurality of constraints may be generated based on the sensor data. A planned trajectory may be generated using the baseline, the stopping point, and the plurality of constraints, wherein constraints beyond the stopping point are ignored.

    Assessing surprise for autonomous vehicles

    公开(公告)号:US11447142B1

    公开(公告)日:2022-09-20

    申请号:US16414176

    申请日:2019-05-16

    Applicant: WAYMO LLC

    Abstract: Aspects of the disclosure provide for controlling an autonomous vehicle. For instance, a first probability distribution may be generated for the vehicle at a first future point in time using a generative model for predicting expected behaviors of objects and a set of characteristics for the vehicle at an initial time expected to be perceived by an observer. Planning system software of the vehicle may be used to generate a trajectory for the vehicle to follow. A second probability distribution may be generated for a second future point in time using the generative model based on the trajectory and a set of characteristics for the vehicle at the first future point expected to be perceived by the observer. A surprise assessment may be generated by comparing the first probability distribution to the second probability distribution. The vehicle may be controlled based on the surprise assessment.

    TRAJECTORY LIMITING FOR AUTONOMOUS VEHICLES

    公开(公告)号:US20220176987A1

    公开(公告)日:2022-06-09

    申请号:US17116422

    申请日:2020-12-09

    Applicant: Waymo LLC.

    Abstract: Aspects of the disclosure provide a of generating and following planned trajectories for an autonomous vehicle. For instance, a baseline for a planned trajectory that the autonomous vehicle can use to follow a route to a destination may be determined. A stopping point corresponding to a traffic control that will cause the autonomous vehicle to come to a stop using the baseline may be determined. Sensor data identifying objects and their locations may be received. A plurality of constraints may be generated based on the sensor data. A planned trajectory may be generated using the baseline, the stopping point, and the plurality of constraints, wherein constraints beyond the stopping point are ignored.

    USING SIMULATIONS TO IDENTIFY DIFFERENCES BETWEEN BEHAVIORS OF MANUALLY-DRIVEN AND AUTONOMOUS VEHICLES

    公开(公告)号:US20210403033A1

    公开(公告)日:2021-12-30

    申请号:US16912976

    申请日:2020-06-26

    Applicant: Waymo LLC

    Abstract: A simulation may be used to determine a difference between progress of a manually-driven vehicle and progress of a simulated autonomous vehicle. The method includes retrieving log data collected for the manually-driven vehicle driving along a route, generating a plurality of path segments for a portion of the route. The plurality of path segments corresponds to points in a lane that the manually-driven vehicle traveled through on the portion of the route. The method also includes running, using a software of the autonomous vehicle, a simulation of the autonomous vehicle driving along the plurality of path segments, extracting metrics from the log data and the simulation, and determining the difference between a first progress of the manually-driven vehicle and a second progress of the simulated autonomous vehicle based on the metrics.

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