E-Bike Drive Freewheel Assembly for Silent Bidirectional Torque Control

The clamping element unit is pre-configured with rolling members positioned to engage with the force transmission element and shaft. When the shaft rotates in the forward direction, the rolling members are preliminarily positioned to transmit torque efficiently. When reverse rotation is detected, the rolling members are preliminarily disengaged to prevent undesirable torque transmission, thus resolving the contradiction between bidirectional operation and torque control.

The rolling members act as intermediary elements between the force transmission element and the shaft. These intermediaries can selectively engage or disengage based on rotation direction, allowing the system to achieve bidirectional operation while preventing harmful torque transmission in reverse direction by simply disengaging the intermediary rolling members.

The clamping element unit is segmented into multiple independent rolling members that can individually engage or disengage from the force transmission element. This segmentation allows rapid response to rotation direction changes while keeping each individual rolling member simple in structure, thus resolving the contradiction between rapid response and structural complexity.

Instead of using a complex locking mechanism to prevent reverse rotation, the invention inverts the approach by using simple rolling members that naturally disengage under reverse torque. The complexity is inverted from an active locking system to a passive disengagement system, achieving rapid response with simpler structure.