Title:
統合受信機
Document Type and Number:
Japanese Patent JP5815472
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an integrated receiver that can monitor tire air pressure during power supply off in a vehicle.SOLUTION: When vehicle power supply is turned off, an ECU 8 makes an integrated receiver 18 execute smart communication by outputting a smart reception request signal Srco to the integrated receiver 18 in the execution timing of the smart communication. A TPMS microcomputer 19 executes a tire air pressure monitoring operation right after turning on to off of the smart reception request signal Srco under a situation where the vehicle power supply (ignition switch 33) is turned off. That is, when the vehicle power supply is turned off, operation of a tire air pressure monitoring system 7 is executed by synchronizing the operation with the smart communication executed intermittently. Then when monitoring the tire air pressure during vehicle power supply is turned off, and when a low-pressure tire is detected, the tire is retained in a memory 21 and the alarm of the tire low pressure is executed when the vehicle power supply is switched to the vehicle power supply on.
Inventors:
Katsuhide Kumagai
Application Number:
JP2012123272A
Publication Date:
November 17, 2015
Filing Date:
May 30, 2012
Export Citation:
Assignee:
Tokai Rika Electric Co., Ltd.
International Classes:
B60C23/04; B60C23/00; G01L17/00; G08C17/00
Domestic Patent References:
| JP2004189170A | ||||
| JP2010228486A |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda