Railway vehicle carriage overload control method and system

The invention discloses a railway vehicle carriage overload control method and system. According to the control method, the bearing of each carriage is judged by combining the vehicle running speed and the pressure of an air spring, when it is detected that the vehicle runs at a preset speed, whether vehicle bearing is overloaded or not is not judged, it is avoided that due to vehicle body floating and sinking caused by line conditions such as steel rail irregularity, curves and ramps in the running process of the vehicle, dynamic changes of air spring internal pressure are caused, false alarmand overload alarm are conducted, and the reliability of railway vehicle carriage overload control is improved. According to the control method, an early warning value and an alarm value are preset in advance, multistage understanding of the carriage bearing is achieved, early warning is conducted in advance before the vehicle is overloaded to make crew members vehicle, and once it is detected that the carriage bearing i