Abstract
The determination principle of the transmission and the gear number in the electric vehicle driving system are studied in this paper. The results show that the rated power or torque and speed of the motor must reasonably match the parameters of transmission system. A type of electric vehicle is taken as the research object. Two of the five manual transmission speeds gears are calculated and analyzed, which are the equilibrium diagram of the driving force and the driving resistance force between the second gear and the third gear. The single gear-driven scheme of the fixed speed ratio reducer is proposed to replace the heavy mechanical gear reducer. It can reduce the mass of the whole vehicle and increase the driving distance from the theorem. Appling the simulation software Advanced Vehicle Simulator (ADVISOR) of electric vehicle to simulate the vehicle power performance and continued mileage, it verifies that the parameters determination principle and the method of the proposed drive system are correct.
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