CPC B62M 6/50 (2013.01) [B62J 45/20 (2020.02); B62J 45/41 (2020.02); B62M 6/90 (2013.01); B62M 25/08 (2013.01)] | 15 Claims |
1. A power assisted electric bicycle, comprising:
a body;
a motor operated in an operating period;
a torque sensor configured to output a plurality of torque signals corresponding to a pedal force; and
a controller coupled to the motor and the torque sensor, wherein the controller is configured to:
receive the torque signals from the torque sensor;
determine a peak and a valley, which is adjacent to the peak, among the torque signals;
compute and determine a pedaling period between the peak and the valley, which is adjacent to the peak, among the torque signals; and
generate an error signal associated with the torque sensor if it is determined that the pedaling period and the operating period fail to meet a default ratio,
wherein the controller is further configured to:
compute and determine the operating period according to a vehicle speed of the power assisted electric bicycle at a time point; and
wherein the vehicle speed of the power assisted electric bicycle at the time point is computed based on a rotation speed of the motor at the time point.
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