Title:
補強された圧電材料を用いて回転するタイヤの機械的エネルギーから電力を発生させるシステム
Document Type and Number:
Japanese Patent JP2005525265
Kind Code:
A
Abstract:
A system for generating electric power from a rotating tire's mechanical energy has a piezoelectric structure and an energy storage device. The structure comprises a plurality of piezoelectric fibers embedded in a generally unidirectional fashion in an epoxy matrix. The structure is mounted on a support substrate for distributing mechanical strain in the piezoelectric structure uniformally. The structure is mounted within a tire for generating electric charge as the wheel moves along a ground surface. Electrodes within the piezoelectric structure are couples to a power module to rectify the electric current and store it in a storage device, f. ex. an electrolytic capacitor or a rechargeable battery. A regulated voltage source receives the generated and stored energy to the power various electronic systems integrated in the tire (10) or wheel, f. ex. A tire monitoring system with wireless transmission of tire pressure, temperature, identification information to a remote receiver.
Inventors:
Adamson, John, Dee.
O'Brien, George, Pea.
O'Brien, George, Pea.
Application Number:
JP2004503296A
Publication Date:
August 25, 2005
Filing Date:
May 05, 2003
Export Citation:
Assignee:
Michelin Le Cherche Technic Society Anonymous
Societe du Technology Michelin
Societe du Technology Michelin
International Classes:
G01L17/00; B60C19/00; B60C23/04; B60K25/08; H01L41/113; H01L41/187; H01L41/193; B60K25/10; (IPC1-7): B60C19/00; B60C23/04; G01L17/00; H01L41/113; H01L41/187; H01L41/193
Domestic Patent References:
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Foreign References:
| WO2000002741A1 | 2000-01-20 | |||
| US4300119A | 1981-11-10 | |||
| US5546070A | 1996-08-13 | |||
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| US5869189A | 1999-02-09 | |||
| US6048622A | 2000-04-11 | |||
| GB2307044A | 1997-05-14 |
Attorney, Agent or Firm:
Takashi Koshiba