US 10,363,991 B2 · Torque sensor system for pedelec

Abstract

A torque sensor system for a pedelec includes an annular gear (6), a planetary gear train (5), a sun gear output shaft (2), a pressure conversion device (9) and a signal processing component (8). The annular gear (6), the planetary gear train (5), and the sun gear output shaft (2) are engaged in turn. The annular gear (6) is driven by the planetary gear train (5), and an applied force signal is transmitted to the signal processing component (8) via the pressure conversion device (9) at an edge of the annular gear (6). The applied force signal is converted to an electric signal by the signal processing component (8) and transmitted to a controller, so as to realize a torque feedback. As a result, a problem that a speed sensor is not applicable to a pedelec when climbing is solved; and a user will feel real and comfortable when riding.

Claims9

Dependent claims

A torque sensor system for a pedelec, comprising an annular gear, a planetary gear train, and a sun gear output shaft which are engaged in turn, and further comprising a pressure conversion device and a signal processing component;

wherein:
for the annular gear and the planetary gear train, one acts as a power input unit, and the other acts as a power output unit;
the pressure conversion device is for receiving a first applied force generated by the power output unit and then converting the first applied force to a second applied force based on a lever principle;
and
the signal processing component is for measuring a performance of the second applied force, converting measuring results thereof to an electric signal, and outputting the electric signal.

2 more elements

Dependencies are inferred from the claim text.

Torque sensor system for pedelec

Life of this patent

Torque sensor system for pedelec

Life of this patent

Abstract

Claims9