| 摘要 |
PROBLEM TO BE SOLVED: To prevent an unreceived abnormality from being notified in exchanging a set of tires.SOLUTION: An unreceived abnormality determination unit 56 outputs an abnormal signal to a notification control unit 53 when unreceived time exceeds first setting time Tref1 for individual registration sensor IDs. A total unreceived time calculation unit 57 calculates the total unreceived time Ttotal which is the total of the unreceived time of the individual registration sensor IDs, and outputs a self-vehicle ID discrimination start command to an ID discrimination and rewrite unit when the total unreceived time Ttotal exceeds second setting time Tref2. Thus, the registration sensor IDs are rewritten, and a driver is prevented from being notified of an unreceived abnormality before the unreceived time exceeds the first setting time Tref1.SELECTED DRAWING: Figure 2 |
