| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicles submergence detection device capable of accurately detecting the submergence of a vehicle without separately installing a sensor for detecting submergence (such as a water sensing sensor). SOLUTION: In the vehicle K1 having a TPMS containing a tire pneumatic pressure sensor (tire side sensor unit 3), the measurement data of the tire pneumatic pressure sensor is monitored by the controller 1 of the TPMS (submergence determination means). When a variation in tire pneumatic pressure with a set change rate is temporarily monitored, the device determines that the vehicle is submerged. By this, the submergence of the vehicle can be earlier and securely detected by distinguishing it from puncture. COPYRIGHT: (C)2005,JPO&NCIPI
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