Integrated Electric Bicycle Drive System

摘要

An integrated high-performance and light-weight electric drive system for a bicycle is disclosed comprising an integrated unitary motor-controller-drive system that can be inserted into and removed from a first tube portion of a bicycle frame through an open bottom bracket shell portion of the bicycle frame. A longitudinally-extending battery pack configured to be electrically connected with and to provide electrical power to the electric motor and the controller may be configured to be inserted into and removed from a second tube portion of the bicycle frame through the open bottom bracket shell portion of the bicycle frame. Some or all of the electrical components may not be visible from the exterior of the bicycle. A unique digital torque sensing and control system is described along with regenerative braking and other unique features.

主权项

1. An integrated electric bicycle drive system comprising an integrated unitary motor-controller-drive system for a bicycle having a frame, the integrated unitary motor-controller-drive system for a bicycle having a frame comprising: an electric motor; a controller configured to electronically control the electric motor; and a drive system mechanically coupled with the electric motor and configured to receive from the electric motor rotational power about a first axis and to transmit said rotational power to a sprocket rotatable about a second axis perpendicular to the first axis, the sprocket configured to be mechanically coupled with a rear wheel of the bicycle and to receive additional power from a rider of the bicycle pedaling the bicycle; wherein the electric motor and the controller portions of the integrated unitary motor-controller-drive system are configured to slide into and be housed within a first tube portion of the frame through an open bottom portion of the frame, the drive system portion of the integrated unitary motor-controller-drive system configured to attach with and cover the open bottom portion of the frame when the electric motor and the controller portions of the integrated unitary motor-controller-drive system are housed within the first tube portion of the frame.