Speed and Angle Synchronisation Control of Two-Speed Electric Vehicle Transmission

Abstract

The paper proposes a control system that synchronizes the speeds and angles of the shafts of a simplified two-speed gearbox of an electric vehicle. The use of such a gearbox increases the energy efficiency of the electric drive, eliminates the need for mechanical friction synchronizers, simplifies the design of the gearbox, and improves its technical characteristics. The results of the computer simulation of the proposed control system are presented, which confirms the possibility of its practical implementation. Using 3D printing, a prototype of a simplified two-speed gearbox for laboratory tests was created. A patent of Ukraine for electric drive of an electric vehicle with gearbox No. 140567 was obtained.