TY JOUR TI Parametric Synthesis Task Solution for Automatic Control Systems (ACS) by Speed of Long Freight Train KW Train dynamics KW long freight train KW optimization methods KW multi-criteria optimization KW parametric synthesis KW quality indicators KW speed controller KW automatic speed control system JO Bulletin of scientific research results AU Zhuhin, N.O. AU Legkaya, V.I. PY 2023 IS 2023 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"