Rail transit train braking system control method and device

Abstract

The application relates to the technical field of rail transit, and provides a control method and device for a rail transit train braking system, the method comprising the following steps: establishing a state model of the braking system, and obtaining state variables by solving the state model, wherein the state model comprises an external interference signal of the braking system; establishing a sliding mode surface function of the braking system, and obtaining sliding mode surface information by solving the sliding mode surface function; calculating a parameter vector of an adaptive sliding mode controller; establishing an adaptive control law based on the external interference signal and the parameter vector of the adaptive sliding mode controller, and obtaining a target control input signal of the braking system by solving the adaptive control law; and performing braking control on the rail transit train according to the sliding mode surface information and the target control input signal. Thus, the train braking control strategy can be adjusted according to the external interference, the phenomenon of energy waste, poor riding comfort, equipment wear and low operation efficiency can be reduced, the braking effect can be guaranteed, and the braking efficiency can be improved.

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