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    Wireless power transfer via rotary link
    2.
    发明授权
    Wireless power transfer via rotary link 有权

    公开(公告)号：US11841465B1

    公开(公告)日：2023-12-12

    申请号：US17137347

    申请日：2020-12-29

    Applicant: Waymo LLC

    Inventor： Joshua Jones ,  Gregory Hall ,  Alexander Zbrozek

    IPC: G01S7/4861 ,  G01S17/931 ,  H02J50/80 ,  H02J50/12

    CPC classification number: G01S7/4861 ,  G01S17/931 ,  H02J50/12 ,  H02J50/80

    Abstract: A method for operating a light detection and ranging (LIDAR) device is provided. The method includes driving, by an LLC resonant power converter, a wireless power signal at a primary winding of a transformer disposed on a first platform. The method includes transmitting the wireless power signal across a gap separating the first platform and a second platform. The second platform is configured to rotate relative to the first platform. The method includes receiving the wireless power signal at a secondary winding of the transformer. The secondary winding is disposed on the second platform. The method includes operating, by the LLC resonant power converter at a unity gain operating point and in an open loop mode without feedback control, a device mounted on the second platform based on the secondary winding receiving the wireless power signal.

    Estimating sensor timestamps by oversampling
    4.
    发明授权
    Estimating sensor timestamps by oversampling 有权

    公开(公告)号：US11632823B1

    公开(公告)日：2023-04-18

    申请号：US17210284

    申请日：2021-03-23

    Applicant: Waymo LLC

    Inventor： Shawn Nematbakhsh ,  Alec Berg ,  Craig Robinson ,  Alexander Zbrozek

    IPC: H04W84/18 ,  H04W4/48 ,  H04L12/40 ,  H04W8/06

    Abstract: Systems and methods for estimating sensor timestamps by oversampling are provided. One example method involves observing, at a sampling frequency, sensor data from a register of a sensor. The sensor updates the register with sensor data at as sensor update frequency. The sampling frequency is different from the sensor update frequency. The method also involves generating, based on the sensor update frequency and the sampling frequency, an observed sequence representing the sensor data. The observed sequence indicates whether the register is observed to be updated or not updated. The method also involves estimating, from the observed sequence, the sensor update frequency and a sensor update phase. The method also involves determining, based on the sensor update frequency as estimated and the sensor update phase as estimated, a timestamp corresponding to an update of the register.

    Redundant Hardware System For Autonomous Vehicles
    6.
    发明申请
    Redundant Hardware System For Autonomous Vehicles 审中-公开

    公开(公告)号：US20200180653A1

    公开(公告)日：2020-06-11

    申请号：US16215713

    申请日：2018-12-11

    Applicant: Waymo LLC

    Inventor： Emily Chi ,  Ryan Joseph Andrade ,  Andreas Wendel ,  Michael James ,  Christian Lauterbach ,  Etai Bruhis ,  Christopher Kennedy Ludwick ,  Alexander Zbrozek ,  Pieter Kapsenberg ,  Zhuyuan Liu ,  Daniel Rosenband

    IPC: B60W50/029 ,  G05D1/00 ,  B60W10/04 ,  B60W10/20 ,  B60W50/02

    Abstract: The technology relates to partially redundant equipment architectures for vehicles able to operate in an autonomous driving mode. Aspects of the technology employ fallback configurations, such as two or more fallback sensor configurations that provide some minimum amount of field of view (FOV) around the vehicle. For instance, different sensor arrangements are logically associated with different operating domains of the vehicle. Fallback configurations for computing resources and/or power resources are also provided. Each fallback configuration may have different reasons for being triggered, and may result in different types of fallback modes of operation. Triggering conditions may relate, e.g., to a type of failure, fault or other reduction in component capability, the current driving mode, environmental conditions in the vicinity of vehicle or along a planned route, or other factors. Fallback modes may involve altering a previously planned trajectory, altering vehicle speed, and/or altering a destination of the vehicle.

    Wireless power transfer via rotary link
    7.
    发明授权
    Wireless power transfer via rotary link 有权

    公开(公告)号：US12228683B1

    公开(公告)日：2025-02-18

    申请号：US18498179

    申请日：2023-10-31

    Applicant: Waymo LLC

    Inventor： Joshua Jones ,  Gregory Hall ,  Alexander Zbrozek

    IPC: G01S7/4861 ,  G01S17/931 ,  H02J50/12 ,  H02J50/80

    Abstract: A method for operating a light detection and ranging (LIDAR) device is provided. The method includes driving, by an LLC resonant power converter, a wireless power signal at a primary winding of a transformer disposed on a first platform. The method includes transmitting the wireless power signal across a gap separating the first platform and a second platform. The second platform is configured to rotate relative to the first platform. The method includes receiving the wireless power signal at a secondary winding of the transformer. The secondary winding is disposed on the second platform. The method includes operating, by the LLC resonant power converter at a unity gain operating point and in an open loop mode without feedback control, a device mounted on the second platform based on the secondary winding receiving the wireless power signal.

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