Transient pure lateral deviation working condition tire aligning torque partition fitting method, equipment, and readable carrier medium

The invention belongs to the field of car tire mechanical property data processing, and particularly relates to a method for carrying out partition fitting on aligning torque relative to slip angle test data under a transient pure lateral deviation working condition, intelligent equipment, and a computer-readable carrier medium. The method is characterized in that a slip angle measuring range is divided into seven areas, cubic polynomial fitting is carried out on test data, about a slip angle, of aligning torque of each interval, and a function value and a first-order derivative value at each node are restrained to be equal. Through partition fitting, the test data of a loading section and an unloading section can be subjected to high-precision fitting to form a smooth curve, and the smooth curve is used for calculating characteristic values of tires, performing benchmarking analysis, or identifying a tire model. The method has the beneficial effects of high accuracy, good repeatability, and high efficiency.