To provide a road surface state discrimination device that can shorten a transmission time when a tire side device performs data transmission.SOLUTION: Each tire side device 1 transmits road surface data including a partial feature quantity during one rotation of a tire, and a vehicle side system 2 discriminates a road surface state on the basis of the road surface data. This allows a transmission time to be shortened when the tire side device 1 performs data transmission. Thus, it is possible to perform road surface state discrimination with good responsiveness and it makes possible to perform vehicle movement control with good responsiveness. Furthermore, power consumption necessary for data transmission can be reduced and it also makes possible to increase battery life and the like.SELECTED DRAWING: Figure 2
【課題】タイヤ側装置からデータ送信を行うときの送信時間を短くできる路面状態判別装置を提供する。【解決手段】各タイヤ側装置1からタイヤ1回転中の一部の特徴量を含む路面データを送信させ、その路面データに基づいて車体側システム2で路面状態を判別する。これにより、タイヤ側装置1からデータ送信を行うときの送信時間を短くすることが可能となる。したがって、応答性良く路面状態判別を行うことが可能になって、応答性良い車両運動制御の実行が可能になる。さらに、データ送信にかかる消費電力を低減でき、電池寿命の向上などを図ることも可能となる。【選択図】図2
ROAD SURFACE STATE DISCRIMINATION DEVICE
路面状態判別装置
2019-07-22
Patent
Elektronische Ressource
Japanisch
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