Title:
回転するタイヤの機械的エネルギーから電力を発生するシステム及び方法
Document Type and Number:
Japanese Patent JP5313381
Kind Code:
B2
Abstract:
A tire assembly with integrated power generation features includes one or more piezoelectric devices and power conditioning modules. Piezoelectric devices may include a plurality of piezoelectric fibers embedded in a generally unidirectional fashion within an epoxy matrix, a piezoceramic wafer provided on a substrate and substantially surrounded by a protective casing, or a pilezoceraimc unimorph structure adhered with a thermoplastic polyimide to respective top and bottom conductive layers. Each piezoelectric device may include multiple piezoelectric elements connected in series and/or parallel arrangements, configured with respective poling directions in opposing or in-phase arrangements and/or configured in d33 or d31 displacement modes. Piezoelectric devices are preferably mounted within a tire or wheel assembly such that electric charge is generated therein as the wheel assembly moves along a ground surface and is subsequently stored in one or more energy storage devices. Stored energy may then be used to power electronics such as a tire monitoring system that wirelessly transmits such information as tire pressure, temperature and identification variables to a remote receiver location.
Inventors:
John Dee. Adamson
George P. O'Brien
George P. O'Brien
Application Number:
JP2012050776A
Publication Date:
October 09, 2013
Filing Date:
March 07, 2012
Export Citation:
Assignee:
Company Generale De Ettablissman Michelin
Michelin Le Cherche et Technic Anonym
Michelin Le Cherche et Technic Anonym
International Classes:
B60C19/00; B60C23/02; B60C23/04; B60C23/20; B60K25/08; H01L41/113; H02J7/00; H02N2/18; B60C23/06; B60K25/10
Domestic Patent References:
| JP200582010A | ||||
| JP2005525265A |
Attorney, Agent or Firm:
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa