Title:
TIRE AIR PRESSURE MONITORING SYSTEM AND DETECTING DEVICE
Document Type and Number:
Japanese Patent JP2018047851
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a tire air pressure monitoring system, which allows a monitoring device and a detecting device to perform two-way communication without adjusting rotation angles of tires during stopping of a vehicle, and yet can suppress consumed power by the detecting device.SOLUTION: A tire air pressure monitoring system comprises a detecting device that detects air pressure of tires provided in a vehicle C and transmits via radio waves air pressure signals obtained by the detection, and a monitoring device that receives the air pressure signals to monitor air pressure of each tire. The monitoring device 1 comprises a request signal transmitting portion that transmits via radio waves request signals for requesting the air pressure signals to the detecting device 2. The detecting device 2 comprises: a request signal receiving portion that receives request signals transmitted from the monitoring system 1; a rotation angle detecting portion that detects rotation angles of the tires 3; a sensitivity setting portion that sets reception sensitivity of the request signal receiving portion according to rotation angles detected by the rotation angle detecting portion; and an air pressure signal transmitting portion that transmits the air pressure signals when the request signal receiving portion receives the request signals.SELECTED DRAWING: Figure 1
Inventors:
MATSUOKA KENJI
Application Number:
JP2016185753A
Publication Date:
March 29, 2018
Filing Date:
September 23, 2016
Export Citation:
Assignee:
AUTO NETWORK GIJUTSU KENKYUSHO KK
SUMITOMO WIRING SYSTEMS
SUMITOMO ELECTRIC INDUSTRIES
SUMITOMO WIRING SYSTEMS
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
B60C23/04; B60C23/02; G01L17/00
Attorney, Agent or Firm:
Hideno Kono
Nobuo Kono
Nobuo Kono