According to the China automotive industry association data, in 2012 1 to August, the domestic production of major manufacturers, sales of new energy vehicles 6019 units, including 2661 units of pure electric vehicles, hybrid vehicles 3358. Across the country efforts to promote the electric vehicle is accelerating, the government procurement is significantly faster than the individual consumer market. The city of Beijing will add 200 electric buses this year, and put into various electric sanitation vehicles 1000. The plan by the end of 2012, Beijing will achieve a total of 5000 new energy vehicle demonstration application scale. As one of the two demonstration pilot city country in new energy vehicle project, Beijing for new energy vehicles maximum subsidies to 60000 yuan. The future purchase of electric vehicles is expected to not be restricted to buy Beijing limited.
Domestic and foreign motor drive different industry status. In the domestic drive motor belongs to the motor industry in small industries, manufacturing high threshold, and foreign motor enterprises here; new technology emerge in endlessly but slower domestic industrialization, our country exists to drive the advantage of motor industry, industrialization Bottleneck Breakthrough time. While in a foreign country, the electric car in Japan in recent years to come out of most of the permanent magnet motor, the United States and Europe electric cars use of permanent magnet synchronous motor, AC induction motor and switched reluctance motor.
Requirement of electric vehicle permanent magnet material: high HCB can guarantee the magnetomotive motor output required, so that the operation of the motor point near the maximum magnetic energy product, make full use of the magnet ability; high Br, to ensure that the motor has high speed, large output torque and high power; high HCJ, can ensure the motor strong overload, demagnetization and aging resistance, low temperature resistance; high (BH) m, (BH) m higher, said permanent magnet work better in the actual operation of coefficients in the motor; magnetic flux Phi bigger is better, which will greatly improve the working efficiency of the motor.
Developing prospects of permanent magnetic materials: the domestic auto industry on the demand of neodymium iron boron permanent magnetic material will constantly increase, permanent magnetic material for motor vehicles has the broad prospects for development. The 2020 world car production is expected to reach 93000000 units, automobile motor need permanent magnetic material each one will exceed 3Kg. At the same time, foreign automobile industry, such as Volkswagen, GM, Ford, Chrysler, Honda and other companies have come to China to invest and build factories, automobile parts, including permanent magnet motor cars, mostly using the nearest matching, greatly promote the permanent magnet motor vehicle demand and China's permanent magnet industry development. |
