Title:
Tire position determining device
Document Type and Number:
Japanese Patent JP6087750
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a tire position determination device capable of ensuring tire position determination accuracy by accurately receiving a radio wave transmitted from a tire air pressure detector.SOLUTION: In a tire position determination device, a TPMS receiver 12 is provided with an array antenna 14 and includes a plurality of antenna complex weight coefficients K in a memory 15 to be used according to a getting-on position of an occupant. An antenna complex weight coefficient switching unit 23 detects the getting-on position of the occupant using a getting-on position detecting unit 17 provided to each seat. The antenna complex weight coefficient switching unit 23 selects an antenna complex weight coefficient K according to the detected getting-on position of the occupant, and directs directional null to any tire 2. A tire position determination unit 24 determines a tire position by checking the tire 2 to which the directional null is directed, and a tire 2 for which a radio wave cannot be received.
More Like This:
Inventors:
Tatsuya Furuike
Kenichi Koga
Akira Akira
Kenichi Koga
Akira Akira
Application Number:
JP2013138980A
Publication Date:
March 01, 2017
Filing Date:
July 02, 2013
Export Citation:
Assignee:
Tokai Rika Electric Co., Ltd.
International Classes:
B60C23/04; H01Q3/26; H01Q21/06; H04B7/10
Domestic Patent References:
| JP2009105614A | ||||
| JP2012162236A | ||||
| JP2005047470A | ||||
| JP2006109131A | ||||
| JP2008068784A | ||||
| JP2004336390A | ||||
| JP6196921A | ||||
| JP56158504A | ||||
| JP2008168826A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
Previous Patent: A ball expenditure device of a game machine
Next Patent: PRODUCTION OF RETORT BEAN CURD
Next Patent: PRODUCTION OF RETORT BEAN CURD