Abstract
With the rapid development of the global automobile industry, energy and environmental problems have become increasingly prominent. In order to realize the sustainable development of new energy, automobile industry has become the direction of new energy. Due to the relatively mature energy storage technology, high efficiency of driving motor and mature control mode, electric vehicles have become the main development direction of new energy vehicles. The main work of this paper is to study the characteristics of various driving motors, design a motor which can meet the performance index of pure electric vehicle, and select an appropriate control scheme.
Highlights
At present, with the rapid development of automobile industry, energy and environmental pollution problems are becoming increasingly prominent, and the requirements of automobile emission standards are increasing
All countries have put forward the corresponding new energy vehicle plan to deal with these problems
The most representative of these is the Qin hybrid vehicle launched by BYD Company
Summary
With the rapid development of automobile industry, energy and environmental pollution problems are becoming increasingly prominent, and the requirements of automobile emission standards are increasing. The hybrid vehicle adopts the permanent magnet synchronous motor drive mode, its acceleration of 0-100 km/h only takes 5.1s. China's electric vehicle technology has made great progress, but compared with foreign developed countries, we still have a big gap in motor structure innovation, materials, control strategy, power electronic technology and so on. The main work of this project is to design a sine wave permanent magnet brushless motor and carry out simulation analysis. According to the main performance requirements of an electric vehicle drive motor in engineering practice, a built-in sine wave permanent magnet brushless motor is designed. The parameters are optimized by the software Ansoft Maxwell, and the finite element analysis is used for simulation verification
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