LEARNING-BASED CRITIC FOR TUNING A MOTION PLANNER OF AUTONOMOUS DRIVING VEHICLE

    公开(公告)号:US20230159047A1

    公开(公告)日:2023-05-25

    申请号:US17456545

    申请日:2021-11-24

    申请人: Baidu USA LLC

    IPC分类号: B60W60/00 B60W50/00 G06N3/08

    摘要: Described herein are a method of training a learning-based critic for tuning a rule-based motion planner of an autonomous driving vehicle, a method of tuning a motion planner using an automatic tuning framework that with the learning-based critic. The method includes receiving training data that incudes human driving trajectories and random trajectories derived from the human driving trajectories; training a learning-based critic using the training data; identifying a set of discrepant trajectories by comparing a first set of trajectories, and a second set of trajectories; and refining, at the neural network training platform, the learning-based critic based on the set of discrepant trajectories. The automatic tuning framework can remove human efforts in tedious parameter tuning, reduce tuning time, while retaining the physical and safety constraints of the ruled-based motion planner. Further, the automatic tuning framework can create personalized motion planners when the learning-based critic is trained using different human driving datasets.

    CONTROL DEVICE
    5.
    发明申请
    CONTROL DEVICE 审中-公开

    公开(公告)号:US20180163857A1

    公开(公告)日:2018-06-14

    申请号:US15735323

    申请日:2016-07-19

    IPC分类号: F16H61/02 G05D16/20 F16H61/00

    摘要: A control device that includes an electronic control unit that is configured to: detect an actual current value flowing through the solenoid valve; receive a current command value and the actual current value detected and generate a primary command voltage value while feeding back the current command value on the basis of the actual current value; calculate a dither command voltage value to cause a periodic voltage oscillation; filter the actual current value detected to remove a frequency corresponding to a period of the dither command voltage value and output the filtered actual current value; generate a secondary command voltage value by superimposing the dither command voltage value generated on the primary command voltage value generated; convert the secondary command voltage value generated into a PWM signal; and generate, on the basis of the PWM signal generated, an application voltage to be applied to the solenoid valve.

    DRIVING AID CONTROL APPARATUS
    6.
    发明申请

    公开(公告)号:US20180057053A1

    公开(公告)日:2018-03-01

    申请号:US15683575

    申请日:2017-08-22

    申请人: DENSO CORPORATION

    发明人: Hirotaka TOKORO

    IPC分类号: B62D15/02 B60W30/12

    摘要: An apparatus for performing driving aid control to cause a travel trajectory of a mobile object to follow a setpoint trajectory by transmitting a control command value to a yaw moment controller capable of controlling a yaw moment of the mobile object. In the apparatus, a first control command value calculator is configured to calculate a first control command value used to calculate the control command value. A straight-driving stabilizing compensator is configured to, when the mobile object is driving straight, calculate a first control command compensation value by decreasing the first control command value. A second control command value calculator is configured to calculate a second control command value used to calculate the control command value. A third control command value calculator is configured to calculate a final control command value based on the first control command compensation value and the second control command value.