US 11,987,320 B2
Power assisted electric bicycle, transmission device and control 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. 17/078,951.
Claims priority of application No. 108138465 (TW), filed on Oct. 24, 2019.
Prior Publication US 2021/0122444 A1, Apr. 29, 2021
Int. Cl. B62M 6/50 (2010.01); B62M 6/65 (2010.01)
CPC B62M 6/50 (2013.01) [B62M 6/65 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power assisted electric bicycle, comprising:
a body;
a wheel disposed on the body;
a torque sensor configured to output a plurality of torque signals corresponding to a pedal force;
a motor configured to drive the wheel; and
a controller coupled to the torque sensor and the motor, wherein the controller is configured to:
receive the torque signals from the torque sensor, wherein the torque signals correspond to the pedal force greater than zero;
compute and determine a first period of time according to a speed of the power assisted electric bicycle at a first time point;
obtain a first maximum value of the torque signals in the first period of time before the first time point; and
set a first torque output of the motor according to the first maximum value corresponding to the torque signals, wherein the first torque output is proportional to the first maximum value.