It is naessary to calculate the braking performance to reasonably match the parameters of each component of the braking system,and design the required braking force,braking distance,braking deceleration,braking power and energy for railway vehicles(locomotive,passenger car,freight car and passenger car with diver′s cab)in order to ensure that the braking performance meets the operational needs of the train.To this end,GB/T 44125(All parts)—2024 Railway applications-Calculation of braking performance(stopping,slowing and stationary braking)is formulated.The paper introduces the formulation background and principles of GB/T 44125(All parts)—2024,in-terprets to calculate the stopping and slowing distance,and the corresponding braking power and energy for the brak-ing distance of vehicles by using the general algorithms and formulas of average value input and instantaneous value input.The comparison and analysis between GB/T 44125(All parts)—2024 and ISO 20138(All parts)Railway applications-Calculation of braking performance(stopping,slowing and stationary braking)are carried out,and the suggestions for the implementation of the standard are put forward.
Rolling StockBraking PerformanceGeneral Algorithms Utilizing Mean Value CalculationGeneral Al-gorithms Utilizing Step by Step CalculationNational StandardInterpretation
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