The Strategy Optimization Of Control System For Electric Vehicle

The automobile industry is one of pillar industries in the world, many developed countries have more than one world famous automobile production enterprises. Along with the automobile industry booming in China, driven by the rapid expansion of various related industries, from automotive sales to the automotive after-sales service, to the management of spare parts, auto insurance, auto finance and so on a number of industry sadly arisen. In twentieth Century since the ninety's, China's automobile production achieved a leap the two times, once in 1992 passed the million grand, indicates that China's auto industry begins to collectivize, Industrialization Route forward. In 1999 and 2000, car production growth rate reached 12.3% and 13%, there were second leap. Nowadays, China is in the period of rapid development of automobile industry, automobile production and sales for two consecutive years in the world the first, achieve 18000000 record.In China's rapid development of the automobile industry, automobile industry of the world began to advocate energy-saving, environmental protection, low carbon new slogan and train of thought, in order to adapt to the development trend of world car, China automotive industry at present pure electric bus as the main direction of development, the automotive manufacturers are committed to developing electric cars and related technologies, in the under this background, we have to Nissan Bilian bus as the framework, developed a new electric business car, car equipped with CAN network communication system, through the efficient management of technology of motor, brake energy recovery technology, the vehicle control strategy research, this paper for the vehicle control strategy for further optimization, the main contents include the following:(1) the Green Lotus car motor and power battery parameter matching, finally chose Shenzhen earth and electrical limited produced the 50KW permanent magnet synchronous motor, as well as the Chinese yuan 330Ah lithium ion power battery. And the selected motor and battery power and mileage simulation. According to the pure electric bus design goal, calculates the required motor and power battery parameters, and ultimately selected Shenzhen earth and Electrical Company Limited production of a 50KW permanent magnet synchronous motors and. Through the ADVISOR of the selected motor and power battery parameters of the simulation, the simulation results can meet the requirement of the design.(2) to the selected 50KW permanent magnet synchronous motor for a characteristic test, making the synchronous motor MAP map, looking for the highest efficiency area. (3) to the selected 330AH battery were characteristic test, also to find the maximum efficiency area.(4) optimization of pure electric passenger vehicle control system control scheme. In front of the test based on vehicle control strategy, the economic mode of the workspace settings.(5) for pure electric passenger vehicle control strategy after the optimization of overall debugging, and vehicle road test. Test is designed to verify in the economy mode, whether it can achieve longer endurance time and mileage.