PROBLEM TO BE SOLVED: To provide a tire air pressure abnormality notification device capable of precisely detecting the abnormality of a tire air pressure without adding a new sensor thereto.SOLUTION: A tire air pressure abnormality notification device 10 includes: a vehicle position detection part 11 which is connected to a beacon signal receiving device 25, an autonomous navigation support sensor 30 and a map DB21 and detects a vehicle position based on beacon signals received at first and second spots by the vehicle 1 during travelling; a ride distance gain part 12 for gaining a ride distance between the first and second spots by approaching the map DB21; an autonomous navigation distance gain part 13 for gaining an autonomous navigation travelling distance based on a signal outputted from the autonomous navigation support sensor 30 when the vehicle 1 travels between the first and second spots; an air pressure abnormality determination part 14 for determining abnormality of a tire air pressure based on the gained ride distance and the autonomous navigation travelling distance; and an air pressure abnormality notification part 15 for notifying the abnormality of the tire air pressure to a driver.SELECTED DRAWING: Figure 2
【課題】新たにセンサを追加することなく、タイヤ空気圧の異常を高精度に検知することを可能にする。【解決手段】タイヤ空気圧異常報知装置10は、ビーコン信号受信装置25と、自律航法支援センサ30と、地図DB21と、に接続され、車両1が走行中の第1および第2の地点で受信したビーコン信号に基づき車両位置を検知する車両位置検知部11と、地図DB21にアクセスして、第1および第2の地点間の道のりの距離を取得する道のりの距離取得部12と、第1および第2の地点間を車両1が走行したとき、自律航法支援センサ30から出力される信号に基づき自律航法走行距離を取得する自律航法距離取得部13と、前記取得した道のりの距離と自律航法走行距離とに基づき、タイヤ空気圧の異常を判定する空気圧異常判定部14と、タイヤ空気圧の異常をドライバに報知する空気圧異常報知部15を備える。【選択図】図2
TIRE AIR PRESSURE ABNORMALITY NOTIFICATION DEVICE AND TIRE AIR PRESSURE ABNORMALITY NOTIFICATION METHOD
タイヤ空気圧異常報知装置およびタイヤ空気圧異常報知方法
2016-04-04
Patent
Electronic Resource
Japanese
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