Application of high performance NdFeB magnets in automobile EPS field 20170829

Application of high performance NdFeB magnets in automobile EPS field 20170829

In traditional vehicles, NdFeB permanent magnets are mainly used for EPS steering system. Each EPS system need 0.15 kg finished  NdFeB magnets, amount to 0.25 kg blank. To calculate with global production of 9498 cars in 2016 and 50% of the EPS system permeability, NdFeB blank consumption in global EPS systems is at least 11800 tons.  Automobile steering system plays a key role on vehicle handling stability and safety. HPS steering system is drived by engine and hydraulic power. This system is mature in technology, but has too many parts, big in volume and heavy in weight. EPS steering system is completely drived by electronic controlled permanent magnet servo motor, which has multiple advantages like compact structure, high efficient and reliable, energy conservation, environmental protection and high safety. In the future, EPS will gradually replace HPS system has become the consensus of the market.


With the improvement of vehicle stability and safety requirements in high-end models, the permeability of EPS in global traditional cars gradually increased from 9% in 2010 to the current 50% or so. Permeability of EPS system in our domestic cars is 40-45% at present, while European and American market share is over 80%, and that of Japan even reached 90%. Therefore, there is still great increase space in the domestic EPS market. According to the following assumptions: 1) in 2017 and 2018 domestic automobile production year-on-year growth of 5% , the global car production year-on-year growth of 4%; 2) domestic EPS permeability increased by 4.5% per year, the global penetration of EPS increased by 3% per year, the expected usage of NdFeB rare earth  permanent magnets  in domestic EPS system with summary of year-on-year growth will be 15% or so in 2017 and 2018 , and the usage of NdFeB in global EPS system year-on-year growth is 10% or so.

Tags: NdFeB magnets, Automobile magnets, EPS magnets, permanent magnets, magnet manufacturer, China magnet