Evaluation of Traction Performance of a Model of DMU Based on Correction of Test Data
Each motor car of DMU is equipped with a traction system and its traction characteristics decide the longitudinal dynamic performance of the car.An exported model of DMU is taken for object of study to perform the traction test and the running resistance test in two conditions(AW0/AW1)and four speed levels(60 km/h,120 km/h,160 km/h and 200 km/h)on the line.The measured data are used according to the method stipulated in Train Traction Calculation Procedure to make the simulating calculation of the traction performance of DMU in AW0/AW1 conditions,normal condition and single-car fault condition.The study result shows that the maximum difference of calculation results of the two typical conditions exceeds 20%.It's suggested to make correction using the measured running resistance in real projects to improve the accuracy of the simulating calculation of the traction characteristics.