Sensor system for tire

Abstract

A sensor system for a tire, and the system enables the installation condition of a sensor unit in a tire's air chamber to be known. A sensor system where a sensor unit is installed in a tire's air chamber has detecting means for detecting a relative change in the distance between the sensor unit and a position where the sensor unit is installed.

Description

technical field [0001] The present invention relates to a tire sensor system for detecting tire internal information such as air pressure and temperature, and more specifically, to a tire sensor system capable of grasping the mounting state of a sensor unit in a tire air chamber. Background technique [0002] Conventionally, in order to monitor tire internal information such as air pressure and temperature, a sensor unit is generally installed on the inner surface of the tire or the groove of the rim, and the sensor unit detects the internal information of the tire, and then transmits the detection result to the An information receiving device on the outside of the tire (for example, refer to Japanese Patent Application Laid-Open No. 10-504783). [0003] In such a sensor system for tires, since the sensor unit is arranged in the tire air chamber, there is a disadvantage that even if the sensor unit falls off from the prescribed mounting position during the rim assembly opera...

AI Technical Summary

Problems solved by technology

[0003] In such a sensor system for tires, since the sensor unit is arranged in the tire air chamber, there is a disadvantage that even if the sensor unit falls off from the prescribed mounting position during the rim assembly operation, it cannot be judged that the sensor unit has fallen off.

Also, if you drive with the sensor unit detached, the electronic parts of the sensor unit will be damaged, and there may be cases where information cannot be sent or a false alarm will be issued.

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