| 摘要 |
<p>A tire pressure detection device, wherein transmitters (2a-2d) attached to wheels (7a-7d), respectively, monitor tire pressure and transmit abnormality information to a control unit (4) on the vehicle body (8) side when the tire pressure has dropped. The transmitters (2a-2d) each monitor the tire pressure with a sampling period shorter than a regular transmission period. Consequently, compared to when the tire pressure abnormality is determined by receivers on the vehicle body side, the tire pressure can be monitored with a shorter period. Moreover, since the tire pressure is monitored with the shorter sampling period, when the tire pressure has dropped, both rapidly and slowly, the pressure drop can be immediately transmitted to the control unit (4), and transmitted to a driver via a warning display (6). Therefore, even when the tire pressure has slowly dropped, a warning can be given in a shorter time after the occurrence of abnormality.</p> |
