2. Maglev train is a kind of train driven by magnetic levitation force, which realizes non-contact suspension and guidance between the train and the track through electromagnetic force, and then the train is towed by electromagnetic force generated by linear motor. Because of the magnetic force of its orbit, it is suspended in the air, which reduces the friction. Unlike other trains, they need to touch the ground when walking, and are only resisted by the air. The speed of high-speed maglev trains can reach more than 400 kilometers per hour, while most of the medium and low-speed maglev trains are at 100-200 kilometers.
3. 1922, German engineer Herman Qiang put forward the principle of electromagnetic levitation, and then applied for a patent. Since 1970s, with the strengthening of the economic strength of industrialized countries, Germany, Japan, the United States and other countries have successively carried out research and development of magnetic levitation transportation systems to improve their transportation capacity and meet the needs of their own economic development and people's lives.
4. The first maglev train in China (purchased from German) started running on the Shanghai maglev line on June 5th, 2003+10. 20 15 10 Changsha maglev line, the first domestic maglev line in China, was successfully put into trial operation. 2065438+On May 6th, 2006, Changsha Maglev Express Line, China's first demonstration line of medium and low speed maglev commercial operation with completely independent intellectual property rights, was put into trial operation. This line is also the longest medium and low speed maglev operation line in the world. 2065438+June 2008, the first commercial maglev version 2.0 train in China rolled off the assembly line at CRRC Zhuji Electric Locomotive Co., Ltd.