Power generation from tyre/pavement friction forces and directing electric power to public electrical assets

06/08/2019

Summary

A large amount of energy is spent every day in friction forces developed between the wheel tyres of vehicles and the pavement surface, and wasted as thermal energy. The challenge for the proof of concept consists of recovering a large part of this energy, by placing an adequate electric assemblage on the pavement, store it at adequate electrical cells and direct it to public electrical assets, especially, street lighting. The present proof of concept for the OIS Call for Ideas constitutes a condensed part of a big prospective project on the same subject. The prospective project will contribute to this vision by establishing a technique for power generation from tyre/pavement friction forces and directing electric power to public electrical assets. An effective application of the technique to a street network over an urban area will save resources at local and national level, will benefit the economy and the environment. A major advantage of the project is the compatibility of the technique with the innovative trends in automobile manufacturing industry: the electric car, the autonomous car, etc.

Technology Description

The proposed technique is totally innovative and it has not been investigated, even by laboratory research, anywhere else. It claims to be simple, efficient and productive. It is conceived in a way to recover a very significant part of wasted friction energy and convert it to electric power, to be used for electrification of public assets. The overall assemblage will be simple and effective under real traffic conditions and energy storage will be made possible. No impediments to traffic are envisaged and no special pavement reconstruction operations are necessary prior to

During a first experiment measurements displayed on the amperemeter varied, indicating however, a weak current of several milliamperes. This first experimentation does not reflect accurately the real site conditions where a long distance of braking will provide friction and, respectively, a long assemblage for energy harvesting will be used to produce an electric current under real traffic conditions.

Main advantages

Totally innovative technique, simple efficient and productive. Potential production of electric power in significant quantities in urban environment. Compatibility with innovative trends in automotive manufacturing industry: the electric car, the autonomous car etc.

Stage of development

A first site experimentation has proven the concept (TRL3). Further research is needed to be conducted in laboratory and through digital simulation. At the present stage of research, the proof of concept needs to be oriented to laboratory investigation (TRL 4).

Challenge and needs

Under the OISAIR POC Call the challenge and need for the research team is to adequately develop an effective testing system from an assemblage that is already designed, to carry out laboratory test using different testing parameters/conditions.

Intellectual property

The technology is still under development and it’s not yet protected.

Potential markets and targets

This technique may constitute a triggering factor for a wide application of renewable power generating technologies in urban environment (kinetic energy, electromagnetic, piezoelectric energy).  A major advantage is the compatibility of the technique with the innovative trends in automobile manufacturing industry: the electric car, the autonomous car, etc.

Potential partners

  • Private firms involved with renewable energy applications
  • Municipal authorities
  • Vehicle and tire manufacturers
  • Electrical systems and circuits producers and SMEs

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