To enable a reduction in air pressure in a tire to be detected in a variety of vehicle travel patterns.SOLUTION: In a server 30 as a detection device, a calculation section 202 calculates linear compensation, using coordinate information of vehicle data of a plurality of vehicles representing at least one of longitudinal acceleration, steering angle and lateral acceleration, for a relative difference in predetermined wheel speeds between front wheels and rear wheels or between right wheels and left wheels of the vehicle with respect to the vehicle data which is data on the plurality of sampled vehicles and divided into a plurality of predetermined data ranges for each data range, and registers the vehicle data corresponding to a y-intercept with respect to the relative difference in the wheel speeds between the predetermined wheels for each data range on the basis of the calculated linear compensation. A detection section 204 detects a reduction in air pressure of a tire for each data range using the difference in the wheel speeds between the predetermined wheels in the registered vehicle data.SELECTED DRAWING: Figure 1
【課題】多様な走行シーンにおいてタイヤの空気圧の低下を検知できる。【解決手段】検知装置としてのサーバ30は、算出部202が、サンプリングされた複数の車両データであって、予め定めた複数のデータ範囲に分割された車両データについて、前記データ範囲ごとに、車両の前輪及び後輪又は右輪及び左輪に関する所定の車輪間の車輪速の相対差に対して、前後加速度、操舵角、及び左右加速度の少なくとも一つをとる複数の前記車両データの座標情報を用いて線形補間を算出し、前記データ範囲ごとに、算出した前記線形補間に基づいて、前記所定の車輪間の車輪速の相対差についてのY切片に対応した前記車両データを登録し、検知部204が、前記データ範囲ごとに、登録した前記車両データの前記所定の車輪間の車輪速差を用いて、タイヤの空気圧の低下を検知する、ように構成されている。【選択図】図1
DETECTION DEVICE, DETECTION SYSTEM, DETECTION METHOD AND DETECTION PROGRAM
検知装置、検知システム、検知方法、及び検知プログラム
2023-05-16
Patent
Electronic Resource
Japanese
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