Title:
車両加速度計の前進軸のキャリブレーション方法及び装置
Document Type and Number:
Japanese Patent JP7158109
Kind Code:
B2
Abstract:
The present invention provides a method and an apparatus for calibrating a forward axis of a vehicle accelerometer and relates to a smart traffic field. Specifically, on the basis of an actual slope in a route, acceleration data of three axes of an accelerometer in a vehicle, and a kinematics equation satisfied by acceleration when a vehicle is traveling on a slope, consistency is determined between a direction of a real time slope of a forward direction/a reverse direction of the three axes and a direction of the actual slope, and one of the three axes which has the highest consistency between the real time slope of a forward direction/a reverse direction and the actual slope in a first time zone is calibrated as the forward axis. According to an embodiment of the present invention, the forward axis of the vehicle accelerometer on the basis of the actual slope data for the route and travel data for the vehicle can be calibrated and it is unnecessary to depend on mark data of a vehicle supplier.
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Inventors:
Yang Min-chung
Lee Pin
Chow Chipong
Lee Pin
Chow Chipong
Application Number:
JP2021043848A
Publication Date:
October 21, 2022
Filing Date:
March 17, 2021
Export Citation:
Assignee:
APOLLO INTELLIGENT CONNECTIVITY(BEIJING)TECHNOLOGY CO.,LTD.
International Classes:
G01P21/00; G01P15/18
Domestic Patent References:
| JP2007163205A | ||||
| JP5990553B2 |
Foreign References:
| US20190279493 |
Attorney, Agent or Firm:
Patent Attorney Corporation Washida International Patent Office