Research on lateral fully-actuated semiactive control of high-speed train with built-in bogies

Compared with the traditional bogies with built-out axle box, the bogies with built-in axle box are more and more used in the field of railway because of their lower wheel-rail force and better curve passing performance. In order to develop higher speed MU trains, the feasibility study of using bogies with built-in axle box in high-speed trains has become a hot topic. Therefore, this paper presents a lateral fully-actuated semi-active control strategy, and designs the controller parameters based on the direct parameter method. Finally, the semi-active control of lateral vibration of high-speed vehicle with built-in bogie is simulated under the excitation of Wu-Guang railway line. The simulation results show that the lateral fully-actuated semi-active control strategy can reduce the RMS values of the lateral ride index of the car body by 26.15%. At the same time, compared with sky-hook control, fully-actuated control has more obvious improvement on roll motion.