US 11,932,350 B2
Power assisted electric bicycle, transmission device, and operation method
Neng-Jie Yang, Taoyuan (TW); Ying-Che Shih, Taoyuan (TW); and Sung-Ching Lin, Taoyuan (TW)
Assigned to Gogoro Inc., Hong Kong (CN)
Filed by Gogoro Inc., Hong Kong (CN)
Filed on Oct. 23, 2020, as Appl. No. 17/078,669.
Claims priority of application No. 108138466 (TW), filed on Oct. 24, 2019.
Prior Publication US 2021/0122443 A1, Apr. 29, 2021
Int. Cl. B62M 6/50 (2010.01); B62J 45/20 (2020.01); B62J 45/41 (2020.01); B62M 6/90 (2010.01); B62M 25/08 (2006.01)
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
OG exemplary drawing
 
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.