PROBLEM TO BE SOLVED: To provide a tire side device that is able to save memory and power in a control section in a tire, and to provide a tire device including the tire side device.SOLUTION: A degree of similarity between present feature quantity and previous feature quantity is calculated by a control section 11 of a tire side device 1 and, on the basis of a result, a determination that a state of a road surface has changed is made. Then, at timing of a change in a state of road surface, road-surface data including the present feature quantity is transmitted from the tire side device 1. This makes it possible to decrease the frequency of communication, thus enabling power saving of the control section 11 in a tire 3. Since the control part 11 of the tire side device 1 does not need a support vector storage part for storing a support vector, a memory can also be saved in the control section 11 in the tire 3.SELECTED DRAWING: Figure 2
【課題】タイヤ内の制御部の省メモリおよび省電力を実現できるタイヤ側装置およびそれを含むタイヤ装置を提供する。【解決手段】タイヤ側装置1の制御部11により、今回特徴量と前回特徴量との間において類似度計算を行い、その結果に基づいて路面状態が変化したことを判定する。そして、路面状態の変化したタイミングでタイヤ側装置1から今回特徴量を含む路面データの送信を行う。これにより、通信頻度を低下させることが可能となり、タイヤ3内の制御部11の省電力化を実現することが可能となる。タイヤ側装置1の制御部11にサポートベクタを保存するためのサポートベクタ保存部を備えないで済むため、タイヤ3内の制御部11の省メモリ化を図ることもできる。【選択図】図2
TIRE SIDE DEVICE AND TIRE DEVICE INCLUDING THE SAME
タイヤ側装置およびそれを含むタイヤ装置
2018-11-22
Patent
Electronic Resource
Japanese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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