TY CONF TI DIAGNOSTICS OF GAS-CARTELLED VEHICLES BASED ON GRAPH MODELS KW internal combustion engine power system KW gas-powered vehicle KW diagnostics KW algorithm JO TOPICAL ISSUES IN SCIENCE DEVELOPMENT AU Ivannikov, V.A. AU Novikov, A.P. AU Hripchenko, M.S. AU Buhtoyarov, V.N. AU Golev, A.D. AU Shiryaev, S.A. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov