Sakun Y. Electric vehicle drive with 2-speed transmission

The object of research is the automatic control system of an electric drive of an electric vehicle with a two-speed gearbox, which ensures synchronization of the speeds and phases of the shafts. The subject of research is electromechanical and electromagnetic processes in the electric drive of an electric vehicle when switching a two-speed gearbox with the synchronization of the speeds of the shafts and their phases. The thesis is devoted to improving the energy efficiency of an electric drive of an electric vehicle through the use of a two-speed gearbox, which is simpler than a traditional multistage gearbox and therefore more reliable, cheaper and lighter, and does not require mechanical synchronizers to align the shaft speeds.