Dual-Motor Coupling Drive Axle Torque Vectoring

The patent segments the torque distribution function by introducing a torque vectoring mechanism that independently controls the torque applied to each wheel. The differential mechanism is combined with an additional torque vectoring unit that can differentially adjust torque to left and right wheels, separating the functions of equal torque distribution and differential torque vectoring.

The patent implements dynamic torque adjustment through active control of the torque vectoring mechanism. The system dynamically modifies torque distribution between wheels based on steering angle, wheel speed differences, and adhesion conditions, transitioning from static equal torque distribution to dynamic adaptive torque vectoring that optimizes turning maneuverability and prevents wheel slippage.

The patent segments the power delivery function by introducing a secondary motor dedicated to torque vectoring operations. The primary motor handles main propulsion while the secondary motor provides auxiliary torque for torque vectoring and peak-load scenarios, dividing the power delivery responsibilities to optimize efficiency across different operating conditions.

The patent applies partial action by using the secondary motor only when needed for torque vectoring and peak power requirements. The secondary motor supplements the primary motor's output selectively rather than continuously, enabling the system to operate at optimal efficiency points during normal driving while providing enhanced power capability when required.

The patent merges the torque vectoring mechanism with the existing differential structure by integrating planetary gear trains into the differential housing. The torque vectoring unit shares common components with the differential, such as gear carriers and housing elements, combining two functions into a single integrated assembly rather than separate mechanisms.

The patent implements multi-functionality by designing the planetary gear trains to serve multiple purposes: torque reduction, torque vectoring, and differential operation. The same gear components are used for both main drive torque transmission and differential torque distribution, allowing a single mechanism to perform multiple functions and reducing overall system complexity.