Axle Drive Mechanism with Integrated Shiftable Torque Transmission

The patent implements a dynamic torque transmission system where the torque transmission device can shift between connected and disconnected states. The torque transmission region is designed to be displaceable relative to the differential cage bearings, allowing the system to adapt its torque transmission characteristics based on driving conditions. This dynamic capability enables the system to disconnect from permanent all-wheel drive operation when full torque transmission is not required, thereby reducing load-dependent losses while maintaining the capability to provide continuous drive when needed.

The patent merges the torque transmission function with the differential mechanism by integrating the torque transmission device directly into the differential cage structure. The torque transmission region is formed as part of the differential cage bearings arrangement, eliminating the need for separate switching actuators and sensors. This integration achieves non-permanent all-wheel drive operation through the inherent mechanical design of the torque transmission device itself, reducing device complexity while maintaining energy efficiency.

The patent segments the torque transmission path by providing a torque transmission device that can selectively engage or disengage specific torque transmission regions relative to the differential cage bearings. This segmentation allows the system to control torque flow to individual wheels or axle groups independently, disconnecting torque transmission to wheels that do not require drive power. By dividing the torque transmission function into controllable segments, the system minimizes power dissipation while maintaining the capability to distribute power to all wheels when required.