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Dual-Drivetrain of Power-Assist Vehicle

  • US 20100181130A1
  • Filed: 07/17/2009
  • Published: 07/22/2010
  • Est. Priority Date: 01/21/2009
  • Status: Abandoned Application
First Claim
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1. A dual-drivetrain for powering a vehicle by pedaling with an assistance of an electric motor, comprising:

  • a pedal-driven part, pivotally mounted to the frame of said vehicle, having at least one gear plate, a pair of cranks normally mounted 180 degree out of phase to said gear plate, and a pair of pedals pivotally attached to each of said cranks;

    a motor-driven part, situated between said pedal-driven part and the real wheel of the vehicle, having a drive-gear being mechanically coupled to the real wheel of said vehicle, a relay-gear being attached to the armature of said electric motor, said relay-gear rotates only clockwise;

    power conveying means having a gearing mechanism that is variable-ratio transmission system for selecting appropriate gear ratios during riding said vehicle and a first transmission member that couples said gear plate and said relay-gear for a synchronized rotation of said relay-relay and said pedal-driven part;

    a controller, mounted of the frame, having a shifter for remotely operating said gearing mechanism and a regulator for regulating the rotational speed of said electric motor;

    whereby, said controller outputs signals for adjusting vehicle speed;

    whereby driven by the pedals, the signals of sensor feed back to the controller, to control the electric motor-driven gear-driven operation, produce large torque output, to make the relay-gear and drive gear produce synchronous operation; and

    through the second pieces of transmission to make the functional wheel transmission gear disk to operate, and the relay-gear dose not need to operate;

    can directly use the pedals to drive the relay-gear and the drive gear to have synchronous operation, through the second pieces of transmission to drive the functional wheel transmission gear disk to run;

    all can correspond to the transmission for controlling the second pieces of transmission in order to approach the functional wheel of transmission gear disk if different concentric outer diameters, as the stalls transformation, to satisfy the rider with various kinds of riding terrains, can exercise in terms of their own choice of mode of labor-saving or demand.

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