Abnormality detection device, abnormality detection method, and non-transitory tangible computer readable medium

    公开(公告)号:US11209457B2

    公开(公告)日:2021-12-28

    申请号:US16878879

    申请日:2020-05-20

    Abstract: An abnormality is detected in a sensor system mounted on a vehicle and including first and second external sensors for acquiring external information and an internal sensor for acquiring internal information. An error, occurring in an internal motion physical quantity based on the internal information, is estimated based on the external information, and the error is corrected. A first external motion physical quantity based on the external information acquired by the first external sensor, a second external motion physical quantity based on the external information acquired by the second external sensor, and the internal motion physical quantity in which the error is corrected by the correction block are compared to determine an abnormality in the sensor system.

    Self-localization estimation device

    公开(公告)号:US11408741B2

    公开(公告)日:2022-08-09

    申请号:US16568637

    申请日:2019-09-12

    Abstract: A self-localization estimation device includes: a map-information acquisition unit that acquires map information including lane information for specifying lanes in which vehicles are enabled to travel; a position calculation unit that calculates an own-vehicle absolute position being an absolute position of an own vehicle in response to navigation signals received from a plurality of navigation satellites, the position calculation unit including a self-location measurement unit, a vehicle-momentum measurement unit, and dead reckoning unit; and a position estimation unit that estimates, based on the map information and the own-vehicle absolute position, a corrected own-vehicle position being a corrected position of the own vehicle. The position estimation unit estimates the corrected own-vehicle position by superimposing a reliability of the map information and a reliability of the own-vehicle absolute position on each other.

    ABNORMALITY DETECTION DEVICE, ABNORMALITY DETECTION METHOD, AND NON-TRANSITORY TANGIBLE COMPUTER READABLE MEDIUM

    公开(公告)号:US20200371131A1

    公开(公告)日:2020-11-26

    申请号:US16878879

    申请日:2020-05-20

    Abstract: An abnormality is detected in a sensor system mounted on a vehicle and including first and second external sensors for acquiring external information and an internal sensor for acquiring internal information. An error, occurring in an internal motion physical quantity based on the internal information, is estimated based on the external information, and the error is corrected. A first external motion physical quantity based on the external information acquired by the first external sensor, a second external motion physical quantity based on the external information acquired by the second external sensor, and the internal motion physical quantity in which the error is corrected by the correction block are compared to determine an abnormality in the sensor system.

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