| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a novel tire and suspension monitoring method and a device thereof. SOLUTION: This tire and suspension monitoring and alarming device performs monitoring and has one set of multifunction sensors for giving an alarm of a failure mode. The device monitors tire imbalance, wear of a tire tread, and a shock absorber for a tire attached to a vehicle and gives an alarm. The device measures acceleration in the axial direction, radial direction, and longitudinal direction of wheels to provide acceleration signal sample power. Concerning the tire imbalance, signal sample power in a secondary high harmonic wave of tire rotation frequency is compared with a primary high harmonic wave. Concerning the wear of the tire tread, average signal sample power in a scope of secondary frequency is compared with a base line value stored in advance. As for shock absorber performance, the total of all the frequency components in a scope of predetermined secondary frequency is compared with the base line value.</p> |
