空気タイヤ状態モニターシステムおよび空気タイヤ状態モニター

Japanese Patent JP4180842

B2

A system (150) for monitoring pneumatic tire conditions for one or more tire/wheel assemblies (105) mounted on a vehicle (152), preferably in combination with a tire pressurizing and regulating apparatus (183), comprises a transponder with a transmitting antenna mounted on the wheel (172) for transmitting a signal indicating tire condition, one or more receivers (166; 161a ... d) with receiving antennas (160a ... d) fixedly mounted on the vehicle, and circuitry for processing the received signals. Circuitry for each transponder (188) is on a printed circuit board (185) within a protective housing (180) coaxial to the hub (170) of the wheel or wheel carrier. Each transmitting antenna is selected from the group comprising a partial loop antenna (191), a helical antenna (193), a circular dipole antenna, and a small coupling coil adjacent to an endless hoop antenna. The partial loop antenna (191) is mounted in each housing affixed around a portion of the circumference of the printed circuit board, having an angular arc length, and comprises a serpentine portion (191b) for increasing the effective length of the partial loop antenna without also extending the angular arc length.

Gene Raymond Starkey
Joseph Paul Digimon Second
Dale Lee Jones
Joseph Michael Letco Miller

JP2002159617A

November 12, 2008

May 31, 2002

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THE GOODYEAR TIRE & RUBBER COMPANY

B60C19/00; B60C23/04; B60C23/00; B60C23/02; B60C23/12; B60C23/20; G08B21/00; H01Q1/22

JP10114207A
JP53045261A
JP5169931A
JP2001246913A
JP2002178728A

US5505080
US3717030

Akio Miyazaki
Nobuyuki Kaneda
Katsuhiro Ito
Ishibashi Masayuki

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