| 摘要 |
The present invention provides a method and device for determining an end stage of lifetime of a run-flat tire under a run-flat state. The method includes the step S 1 of monitoring the tire internal pressure on a vehicle equipped with a run-flat tire system comprising run-flat tires and tire information transmitter to determine that the tire starts running under a run-flat state when the tire internal pressure becomes lower than a given internal pressure, the step S 2 of measuring the temperature of the tire during running at the run-flat state, the step S 3 of calculating a rate of change in temperature per unit time based on the measured temperature value of the tire, and the step S 4 of comparing the rate of change with a given negative threshold to determine that the run-flat tire is in an end stage of lifetime under a run-flat state when the rate of change in temperature is smaller than the given threshold.
|
