The invention relates to a dynamic mass correction method and a braking force calculation method for a vehicle. The method comprises the steps that: a sprung mass m1, a bogie mass m2 and a rotating mass m3 of a secondary air spring during loading are obtained, the wheel diameter of the vehicle changes along with the change of the sprung mass m1, and the calculation formula of the wheel diameter change is shown in the specification, wherein R is the dynamic wheel diameter, R0 is the wheel diameter when the vehicle is idle, p is the tire pressure of the tire, Z is the sum of the sprung mass m1 and the bogie mass m2, and a, k and n are constants; and the calculation formula of the dynamic load m of the vehicle is shown in the specification, and the braking force is calculated through the corrected dynamic mass. According to the calculation mode, the dynamic mass of the vehicle is corrected and calculated, and the dynamic load m is corrected to balance the real-time wheel diameter R whichis difficult to obtain, so that when the braking force is calculated, the braking controllability of the rail vehicle can be more accurate, and the driving safety is improved.
本发明涉及一种车辆的动态质量修正方法及制动力计算方法,获取载重时二系空气弹簧的簧上质量m、转向架质量m以及旋转质量m,车辆轮径会因为簧上质量m的变化而发生变化,轮径变化的计算公式如下:其中,R为动态轮径,R为车辆空载时的轮径,p为轮胎胎压,Z为簧上质量m以及转向架质量m之和,a、k、n为常数;车辆的动态载荷m的计算公式如下:并通过上述修正动态质量计算制动力。上述计算方式对车辆的动态质量进行修正计算,修正动态载荷m来平衡很难获得的实时轮径R,使得在进行制动力的计算时,能够更加准确,提高轨道车辆制动的可控性,提高行驶的安全性。
Dynamic mass correction method and braking force calculation method for railway vehicle
一种轨道车辆的动态质量修正方法及制动力计算方法
14.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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