FIELD: motor industry.
SUBSTANCE: group of inventions is related to facilities for electric energy generation installed on wheels. Tyre assembly with integrated elements of energy generation comprises one or more piezoelectric devices and modules of energy conversion. Piezoelectric devices include multiple piezoelectric fibres, which are mainly inbuilt in a unidirectional manner into matrix of epoxide resin, piezoceramic plate arranged on substrate and surrounded with protective body, or piezocermaic unimorphous structure adhered by thermoplastic polyimide to upper and lower conducting layers. Each piezoelectric device includes multiple piezoelectric elements, which are connected serially and/or parallel, having configuration with appropriate directions of polarisation in phase or opposite phases and/or having configuration in modes of displacement d33 or d31. Piezoelectric devices are fixed in tyre or wheel so that electric charge is generated in them, when wheel moves along earth surface, and is saved in one or several devices of energy accumulation. Energy may then be used for electronic circuits, such as system of tyre monitoring, which sends the following information along wireless communication line - tyre pressure, temperature and variables of remote receiver location identification.
EFFECT: invention makes it possible to reduce volume of hardware required to tyre monitoring and to remove limitations on types and dimensions of electronic equipment intended for use in tyre and wheel.
37 cl, 18 dwg
