关键词: 铁路运输, 列车牵引计算, 坡道阻力, 误差, 修正

Abstract: In order to make train movement simulation have good correlation with practical railway transportation, the comparison between calculation results based on train traction calculation and measured data from Train Running Monitor and Record Device is investigated in this paper. According to the differences between numerical model and actual data, the key cause resulting in the inaccuracy is identified, the impacts of track layout and train formation to the errors of train grade resistance calculation are revealed. A new model is proposed, which can be used to correct the calculation errors based on measured data, through theoretical deduce and experiments. Calculation results of new model and that of initial model were compared with the measured data respectively, and the results show that the former accords with measured data better. The proposed model can describe train dynamics more accurately, the average of the calculation errors decreases from 14 percent to 5 percent. Now, the new model has been successfully applied into Energy-Efficient Freight Train Operation Guidance System with Diesel Locomotive.

Key words: railway transportation, train traction calculation, grade resistance;error, modification