Electric direction assisting power adjusting system and method for electric vehicle

The invention discloses an electric direction assistance adjusting system and method for an electric vehicle, and the system comprises a mechanical transmission subsystem, a torque sensor subsystem, a data collection and transmission subsystem, a data analysis and processing subsystem, and a motor operation maintenance subsystem. The mechanical transmission subsystem comprises a servo motor, a motor connecting plate, a horse head pipe, a main shaft, a locking nut, an upper pressure bearing, a lower pressure bearing, a protective cover, a turbine, a flat key, a worm, an inner snap spring for a hole, a deep groove bearing, a bearing seat, a torque sensing unit, a coupler and a front fork, and transmits a torque signal to the control unit; the control unit transmits a current signal to the servo motor according to a torque value and a direction rotation angle value which are fed back by the signal, the servo motor receives the signal transmitted by the controller to drive the worm and gear to rotate forwards and