Patent ID: 8634979
Filing Date: 2014-01-21
Classification: B62J,B62M

Abstract:
1. A driving device for an electric bicycle, comprising: a power supply/storage unit for providing and storing electrical energy; a compact motor provided on a wheel or a chainring of the electric bicycle and electrically connected with the power supply/storage unit; an inclination sensor for sensing inclination information of the electric bicycle with respect to a horizontal plane when a pedal-rotating speed of the electric bicycle exceeds a predetermined activation condition; a brake actuation sensor for sensing brake actuation information in response to braking of the electric bicycle; a pedal-rotating speed sensor for sensing pedal-rotating speed information in response to pedaling of the electric bicycle; and a drive control module for detecting Hall signals corresponding to location status of the compact motor and performing calculations based on the Hall signals, the duty cycle and predetermined time count information or based on the Hall signals, the modulation parameter and predetermined time count information, so as to output corresponding switch triggering information for completing switch setting, and further for performing an integrated calculation based on the inclination information, the brake actuation information and the pedal-rotating speed information, and instructing, based on a result of the integrated calculation, the compact motor and the power supply/storage unit to enter an auxiliary drive mode or an energy recovery mode, wherein, in the auxiliary drive mode, the compact motor and the power supply/storage unit drive wheels of the electric bicycle, and in the energy recovery mode, the power supply/storage unit stores electrical energy generated by the compact motor.