Road condition judgment method based on working state of vehicle power system

The invention provides a road condition judgment method based on the working state of a vehicle power system, and the method comprises the steps: building typical road conditions according to the setting of national standard working conditions, and the typical road conditions comprise an urban congestion road condition, an urban expressway road condition, a mountain road condition and an expressway road condition; constructing a mapping relation between the typical road condition and a driving motor working condition through a drum test, and obtaining working state data of a vehicle driving motor corresponding to the typical road condition; acquiring working condition data of a driving motor when the vehicle runs, performing feature extraction on the working condition data, and gathering extracted sample points to form a sample cluster; and when the accumulated number of the sample points in the sample cluster reaches a set number, road condition conformity judgment is performed on each sample point according