2023 Volume 85 Issue 3 Pages 155-161
Operating the electric wind winnowing unit of a combine using continuously variable transmission allows fine adjustment of the wind winnow, resulting in improved versatility and quality of winnowing. Additionally, this may aid in devising solutions for problems resulting from the automation of combines. In this study, the changing point in the grain flow rate was determined based on the obtained load currents before and after the grain flow rate was changed via state-space modeling. Moreover, the performance of the wind winnow, in terms of its sorting accuracy, was classified as good or bad using discriminant analysis, which was further validated using cross-validation. Based on the results, a detection algorithm was developed.
