1. Yuan, Z.Q., Nie, M.: Development of high-power permanent magnet direct drive passenger locomotive. Electr. Drive Locomot. (01), 40-44 + 50 (2019)
2. Chen, G.S., Xiao, T., Chen, X.H., Gong, X.B., Lu, Z.G., Wang, W.B.: Some key technology problems for independent-wheel and hub direct driving bogie with permanent magnet motor. Electr. Drive Locomot. 05, 4–7 (2016)
3. Liu, Q.A., Zhang, J., Zhong, W.S.: The influence of balancing link tilt angle on motor motion and primary load of bogies with permanent magnet driven directly. Electr. Drive Locomot. 02, 37–39 (2015)
4. Zhang, J., Zhong, W.S., Liu, G.K.: General description of the development of the direct-drive technology of permanent magnet synchronous motor of bogie at home and abroad. Railw. Locomot. Car 34(03), 79–83 (2014)
5. Feng, Z.W., Hu, D.X., Chu, Y.P.: Research on dynamic performance of direct-driven flexible bogie for permanent-magnetic synchronous motor. Railw. Locomot. Car 33(03), 73–76 (2013)