Electrically pedal-assisted bicycle

US9102317B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9102317-B2
Application numberUS-201213981627-A
CountryUS
Kind codeB2
Filing dateFeb 2, 2012
Priority dateFeb 3, 2011
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

It is described an electronic system ( 50 ) to drive an electric device ( 5 ) of a bicycle assisted electrically ( 1 ) by means of a rechargeable battery ( 6 ). In case of detecting that the calculated human power is greater than or equal to the bicycle estimated friction power and in case of detecting that the state of charge of the battery ( 6 ) is greater than or equal to a first threshold, the processor is such to generate a driving current value for driving the electric device ( 5 ) operating as an electric motor ( 5 ) supplied from the battery ( 6 ). In case of detecting that the calculated human power is smaller than the estimated bicycle friction power, the processor is such to convert at least part of the human power into electric power by means of the electric device ( 5 ) operating as an electric generator ( 5 ), and generate therefrom another driving current value for charging the battery ( 6 ) from the electric device operating as electric generator.

First claim

Opening claim text (preview).

The invention claimed is: 1. Electronic system ( 50 ) to drive an electric device of a bicycle ( 1 ) assisted electrically by means of a rechargeable battery ( 6 ), said electric device being configured for operating as an electric motor supplied from the battery or as an electric generator for charging the battery, the system comprising: a measurement module ( 8 ) configured for measuring the angular velocity (S ω — ped ) of the bicycle pedal arms and the torque (…

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Frequently asked questions

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What does patent US9102317B2 cover?
It is described an electronic system ( 50 ) to drive an electric device ( 5 ) of a bicycle assisted electrically ( 1 ) by means of a rechargeable battery ( 6 ). In case of detecting that the calculated human power is greater than or equal to the bicycle estimated friction power and in case of detecting that the state of charge of the battery ( 6 ) is greater than or equal to a first threshold, …
Who is the assignee on this patent?
Spelta Cristiano, Alli Giovanni, Spagnol Pierfrancesco, and 6 more
What technology area does this patent fall under?
Primary CPC classification B60L15/2009. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).