Title:
車両タイヤの状態をモニターするための方法と装置
Document Type and Number:
Japanese Patent JP4014323
Kind Code:
B2
Abstract:
A method for monitoring various physical conditions of pneumatic tires (5) and to a tire which includes a memory device (10) mounted on the interior (12) of the tire within the pressurizable cavity and a separate monitoring device (8) mounted on the tire rim (16). The memory device contains a battery, an antenna and stored data pertaining to the tire. The monitoring device uses an active self-powered programmable electronic circuitry which obtains data from the memory device and in addition contains one or more sensors which obtains engineering conditions such as temperature, pressure, tire rotation and/or other operated conditions of the pneumatic tire along with the stored information from the memory device. The memory device can be actuated by externally transmitted radio frequency waves from a remote location or by signals from the monitoring device, and the monitoring device can transmit the information to the remote location by a separate, larger and more powerful battery (42) which is mounted on the tire rim (16) than the battery in the memory device.
Inventors:
Hiromi Hamaya
Application Number:
JP37635098A
Publication Date:
November 28, 2007
Filing Date:
December 22, 1998
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C23/04; B60C23/06; H01Q1/22
Domestic Patent References:
| JP9136517A | ||||
| JP9188113A | ||||
| JP867117A | ||||
| JP274204U |
Foreign References:
| US4578992 | ||||
| US5235850 |
Attorney, Agent or Firm:
Heikichi Odashima
Heigo Odashima
Heigo Odashima