Patent ID: 9085342
Filing Date: 2015-07-21
Classification: B60K,B62M

Abstract:
1. A power assisted vehicle comprising: a frame connected to a front fork supporting a front wheel and a rear fork supporting a rear wheel, the rear wheel having a first driven sprocket assembly and a second driven sprocket assembly; a rechargeable electrical power supply attached to the frame; a motor controller attached to the frame; an electric motor supported by the frame and attached to a first driving sprocket which is coupled to the first driven sprocket assembly on the rear wheel; a motor drive member directly connecting the first driving sprocket and the first driven sprocket assembly on the rear wheel; a manual pedal assembly supported by the frame and comprising a pedal crank shaft with two pedals and a second driving sprocket which is coupled to the second driven sprocket assembly on the rear wheel; and a pedal drive member directly connecting the second driving sprocket and the second driven sprocket on the rear wheel; wherein the center of mass of the motor is forward of the pedal crank shaft; wherein the motor is bi-directionally coupled to the rear wheel, and the pedal assembly is uni-directionally coupled to the rear wheel; wherein the location of the electric motor intersects or is tangent to the area defined by rotation of the pedal assembly; and wherein the power supply is electrically connected to the motor controller.