To provide a road surface state determination device capable of realizing further power saving.SOLUTION: If the vehicle speed exceeds a determination threshold when a road surface state is determined, road surface data including a present feature amount from a tire side device 1 is transmitted only at the timing when the road surface state is varied. When the vehicle speed is the determination threshold or less, the presence/absence of the change in the road surface state is not determined and road surface data is transmitted for every one rotation of a tire.SELECTED DRAWING: Figure 2
【課題】より省電力化を実現することができる路面状態判別装置を提供する。【解決手段】路面状態の判別を行うに際し、車速が判定閾値を超えている場合には、タイヤ側装置1からの今回特徴量を含む路面データの送信が路面状態の変化タイミングのみとなるようにする。また、車速が判定閾値以下のときには、路面状態の変化の有無を判定しないようにし、タイヤが1回転する毎に路面データを送信する。【選択図】図2
TIRE SIDE DEVICE AND ROAD SURFACE STATE DETERMINATION DEVICE INCLUDING THE SAME
タイヤ側装置およびそれを含む路面状態判別装置
11.03.2021
Patent
Elektronische Ressource
Japanisch
Road surface state determination device and tire system including same
Europäisches Patentamt | 2025
|ROAD SURFACE STATE DETERMINATION DEVICE AND TIRE SYSTEM INCLUDING SAME
Europäisches Patentamt | 2019
|ROAD SURFACE STATE DETERMINATION DEVICE AND TIRE SYSTEM INCLUDING SAME
Europäisches Patentamt | 2019
|ROAD SURFACE STATE DETERMINATION DEVICE AND TIRE SYSTEM INCLUDING SAME
Europäisches Patentamt | 2020
|Road surface state determination device and tire system including the same
Europäisches Patentamt | 2023
|