PROBLEM TO BE SOLVED: To accurately register, as a candidate ID, ID information on a transmitter of a wheel of an own vehicle while suppressing ID information on a transmitter of a wheel of the other vehicle from being registered as a candidate ID.SOLUTION: When each candidate ID is registered, the number of pieces of ID information to be registered is narrowed down by making strict a registration condition while data update is made easy for the ID information once the ID information has been registered as the candidate ID. Specifically, a determination criterion that a vehicle is in a state of traveling and that is used as the registration condition is that a vehicle velocity equal to or higher than a first velocity at which an acceleration sensor is turned on occurs. A determination criterion that the vehicle is in a state of traveling and that is used as a data update condition is that a vehicle velocity equal to or higher than a second velocity lower than the first velocity occurs.SELECTED DRAWING: Figure 8
【課題】他車両の車輪の送信機のID情報が候補IDとして登録されることを抑制しつつ、自車両の車輪の送信機のID情報が的確に候補IDとして登録されるようにする。【解決手段】候補IDを登録する際に、登録条件を厳しくすることで登録されるID情報の数を絞りつつ、一旦、候補IDとして登録されたID情報については、データ更新がされ易くなるようにする。具体的には、登録条件として用いている車両状態が走行中であることの判定基準を、加速度センサがオンの状態となっている第1速度以上の車速が発生していることとする。そして、データ更新の条件として用いている車両状態が走行中であることの判定基準を、第1速度よりも低い第2速度以上の車速が発生していることとする。【選択図】図8
WHEEL POSITION DETECTION DEVICE AND TIRE PNEUMATIC PRESSURE DETECTION SYSTEM WITH SAME
車輪位置検出装置およびそれを備えたタイヤ空気圧検出システム
2016-08-04
Patent
Electronic Resource
Japanese
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