Title:
WHEEL POSITION DETECTOR AND TIRE INFLATION PRESSURE DETECTOR HAVING THE SAME
Document Type and Number:
WIPO Patent Application WO/2013/099209
Kind Code:
A1
Abstract:
In a wheel position detector for a vehicle (1), a transmitter (2) on each wheel (5a-5d) repeatedly transmits a data frame containing identification information when an angle of the transmitter (2) reaches a transmission angle. A receiver (3) for receiving the frame is mounted on a body (6) of a vehicle (1) and performs wheel position detection based on the frame to specify a target wheel (5a-5d) from which the frame is transmitted. The receiver (3) acquires a tooth position of a gear (12a-12d) rotating with a corresponding wheel (5a-5d) when receiving the frame and sets a variation allowable range based on the tooth position. The receiver (3) specifies the target wheel (5a-5d) by determining whether the tooth position falls within the variation allowable range. The transmitter (2) changes the transmission angle at a predetermined time interval.
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Inventors:
MORI MASASHI (JP)
WATABE NOBUYA (JP)
OKADA NORIAKI (JP)
SEKIZAWA TAKATOSHI (JP)
WATABE NOBUYA (JP)
OKADA NORIAKI (JP)
SEKIZAWA TAKATOSHI (JP)
Application Number:
PCT/JP2012/008255
Publication Date:
July 04, 2013
Filing Date:
December 25, 2012
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60C23/04
Foreign References:
JP2010122023A | 2010-06-03 | |||
US7336161B2 | 2008-02-26 | |||
JP2010122023A | 2010-06-03 | |||
JPH1048233A | 1998-02-20 |
Attorney, Agent or Firm:
KIN, Junhi (Takisada Bldg. 2-13-19, Nishiki, Naka-ku, Nagoya-cit, Aichi 03, JP)
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Claims:
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