The study of motion of the snow and swamp-going vehicle with the traction electric drive, based on the Emrax 228 electric motor

Abstract

BACKGROUND: Ensuring transport accessibility of arctic zones of the RF, according to the strategy of social and economic development of the Russian Federation until 2030, is an important and relevant objective. AIMS: The article contains the results of the study of motion of the 6WD snow and swamp-going vehicle with traction electric drive, developed at the Wheeled vehicles department of Bauman MSTU as part of development of snow-going vehicles line-up for the sake of improvement of transport accessibility for people living in arctic zone of the RF. METHODS: On the basis of the RM 650-2 6X4 all-terrain vehicle, the state-of-the-art electric snow- and swamp-going vehicle with a light-weight welded frame, an electric power unit, a lithium battery as a power-supply source and electromechanical transmission was designed. The vehicle equipped with systems of control, cooling and lighting as well as sensors and measuring complexes. Studies were carried out with various vehicle operation modes (on direct gear with current limit, without current limit and on low gear). Soil road and prepared cross-country terrain were used as a profiled track. RESULTS: The time-domain diagrams of traction electric drive operation and the vehicle dynamic characteristics were obtained as the study results. CONCLUSIONS: The obtained values and characteristics point at high level of vehicle power equipment and at prospects of designs, used in the snow-and swamp-going vehicle. The study results can be used for modernization of existing vehicles and for development of high-technology machinery, based on electric power unit.