在磁浮列车运行时,需要调节空气弹簧的刚度来保证车体的平稳,本文设计了一种基于现场可编程逻辑门阵列(FPGA)信号处理的、以继电器为主要控制器件的磁浮列车空气弹簧充排气控制模块来调节空气弹簧的刚度.试验证明该设计是可行的,能够满足磁浮列车空气弹簧控制系统的要求. When the maglev train is running, the rigidity of the air spring needs to be adjusted to ensure the stability of the vehicle body. In this paper, a maglev train air spring charge based on field programmable gate array (FPGA) signal processing with relays as the main control device Exhaust control module to adjust the stiffness of the air spring.Experiments prove that this design is feasible and can meet the requirements of air spring control system of maglev train.