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Method and device for detecting wear on an electric bicycle

  • US 9,514,576 B2
  • Filed: 04/23/2012
  • Issued: 12/06/2016
  • Est. Priority Date: 06/08/2011
  • Status: Active Grant
First Claim
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1. A method for detecting wear on at least one component of an electric bicycle, comprising:

  • monitoring an operating condition of the at least one component of the bicycle with the aid of at least one sensor;

    detecting a stress on the component based on an operating time of the at least one component;

    displaying on a display unit a need for service as soon as a long-term load threshold defined for the at least one component is reached, wherein the component is a drive train component, and wherein the stress relates to a mechanical wearing out of the drive train component, wherein the long-term load threshold represents a threshold that if met or exceeded indicates that the component requires servicing or replacement, wherein the drive train component is driven by an electric motor;

    detecting a ripple component of a current of the electric motor;

    comparing the detected ripple component to a ripple component of a reference signal; and

    indicating that the mechanical wearing of the drive train component is present if a deviation between the detected ripple component and the ripple component of the reference signal exceeds a predefined value.

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