Patent ID: 9063026
Filing Date: 2015-06-23
Classification: A63B,B62J,G01L

Abstract:
1. A portable rechargeable power meter apparatus for a bicycle; said bicycle including a power transmission system; said power transmission system including pedals configured for rotation about an axis upon application of a pedaling force; said power meter comprising: (i) a sensor comprising one or more piezoelectric elements positioned at one or more locations along said power transmission system, with said sensor configured to produce an analog electrical signal upon application of said pedaling force; (ii) a board comprising a plurality of electronic components, including: (iii) an energy harvester comprising said one or more piezoelectric elements operatively coupled to said power transmission system for harvesting energy upon application of said pedaling force; and, (iv) charging circuitry configured to provide the harvested energy to the electrical supply, whereby in use the power supply is maintained in a properly charged state.