| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire air pressure monitoring device that can automatically reregister an identification code without using dedicated equipment even upon tire replacement, by distinguishing a mounted tire and an unmounted tire. SOLUTION: In a vehicle with a plurality of tires, the tire air pressure monitoring device comprises tire air pressure sensors 10 for detecting the air pressure of each tire and transmitting an ID and the detected air pressure peculiar to each tire via a radio signal, a receiving antenna 13b and a receiving circuit 13c mounted on the vehicle to receive the radio signals from the tire air pressure sensors 10, and a microcomputer 13f for conducting the mounted tire ID registration arithmetic processing of comparing stored IDs of mounted tires and IDs of data including an ON centrifugal switch signal, and if both IDs do not match, changing unmatched IDs for updated storage. |
