Steering transmission ratio variable control method, system and device and storage medium

The invention discloses a steering transmission ratio variable control method, system and device and a storage medium, and the method comprises the steps: obtaining the current vehicle speed and the current steering wheel rotation angle of a vehicle, and determining a basic steering transmission ratio according to the current vehicle speed and the current steering wheel rotation angle of the vehicle; first position information of objects around a vehicle is obtained through a detection device arranged on a vehicle body, whether the objects around the vehicle fall into a set transverse dangerous area or not is judged according to the first position information, and if it is determined that the objects fall into the transverse dangerous area, a transverse distance coefficient is determined according to the transverse distance between the objects around the vehicle and the vehicle; adjusting the steering transmission ratio of the vehicle according to the transverse distance coefficient; if not, adjusting the ste