TIRE INTERNAL PRESSURE REDUCTION ALARM GENERATING SYSTEM

摘要

PROBLEM TO BE SOLVED: To generate an alarm by detecting the internal pressure of a tire through simple constitution. SOLUTION: A tire internal pressure reduction alarm generating system for a vehicle 33 provided at a car body 31 with a plurality of tires 8 comprises a noise generating means to generate strike noise by making contact with the inner surface of the part 8a, touching a ground, of a tire the internal pressure of which is reduced during running of the vehicle 33; a noise collecting means 35 arranged at the car body 31; a detecting means 41 to detect strike noise from noise collected by the noise collecting means 35; a deciding means 43 to decide reduction of the internal pressure of the tire from strike noise detected by the detecting means 41; and an announcing means 45 to announce reduction of the internal pressure based on the deciding result of the deciding means 43.