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公开(公告)号：US20200158850A1
公开(公告)日：2020-05-21
申请号：US16557034
申请日：2019-08-30
Applicant: DENSO CORPORATION
Inventor： Kazuma ISHIGAKI , Kentaro SHIOTA , Shinya TAGUCHI , Naoki NITANDA
Abstract: In an apparatus for learning a scale factor used to calculate a true value of a speed of a vehicle from a detected speed that is a sensor reading from a vehicle speed sensor, a sensor reading acquirer acquires the detected speed of the vehicle from the vehicle speed sensor. A relative speed detector detects a relative speed of the vehicle to a stationary object based on a result of detection by an object detector that detects an object around the vehicle. A scale factor calculator calculates the scale factor based on the relative speed and the detected speed.
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