Electric vehicle turning auxiliary system and control method

The invention relates to an electric vehicle turning auxiliary system and a control method, and solves the problem of vehicle scratch or collision events due to unskilled driving or fatigue of a driver. The turning auxiliary system comprises a vehicle control unit, a radar probe, a camera and a steering wheel angle sensor. The control method includes the steps: judging whether a current vehicle needs steering or not and limiting the turning speed of the vehicle if the current vehicle needs steering; and then detecting whether current operation of the driver and a current turning space meet turning requirements or not, replacing the driver to turn the vehicle by the vehicle control unit if not, and giving an alarm and stopping the vehicle if the current turning space cannot meet the turning requirements. The turning auxiliary system and the control method have the advantages that external environment monitoring, steering-by-wire, electric vehicle control technology and image data processing are combined, a turning auxiliary function for the vehicle is realized, the burden of the driver is relieved, vehicle safety is ensured, scratch is avoided, and economic loss is decreased.