The invention discloses a test method for motor train unit brake cylinder pipeline leakage diagnosis, relates to the technical field of brake system detection, and solves the problems of poor brake system performance, insufficient brake force and the like caused by brake cylinder pipeline leakage in the prior art. The test method comprises the following steps that a pressure maintaining test is carried out according to set preconditions of the pressure maintaining test. A driver operates an HMI brake test interface to activate a pressure maintaining test item point, a pressure maintaining testinstruction is sent to a TBM through a CCU, the TBM diagnoses whether a current brake system meets test requirements or not, response interaction is conducted on the CCU instruction, and meanwhile anelectromagnetic valve is controlled to close sanding drying air supply. The driver manually applies the maximum service brake, the TBM controls and starts an air compressor to perform air charging, and in the process of starting the pressure maintaining test, the TBM sends the pressure maintaining test progress to the CCU and displays the pressure maintaining test progress on the HMI. The TBM diagnoses the pressure drop through total wind pressure sensors at the two ends, calculates a discharge value, compares the discharge value with a discharge standard limit value, sends the discharge value and a test result to the CCU, and displays the discharge value and the test result on the HMI, and the pressure maintaining test is completed.
一种动车组制动缸管路泄露诊断的试验方法,涉及制动系统检测技术领域,解决现有制动缸管路泄漏导致制动系统性能不良,制动力不足等问题,包括根据设定保压试验的前提条件,进行保压试验;司机操作HMI制动试验界面激活保压试验项点,通过CCU向TBM发送保压试验指令,TBM诊断当前制动系统是否满足试验要求,并对CCU指令进行应答交互,同时控制电磁阀关闭撒砂干燥供风;司机手动施加最大常用制动,TBM控制启动空压机进行充风,开始保压试验的过程中,TBM向CCU发送保压试验进度,并在HMI上显示;TBM通过对两端车总风压力传感器对压力下降进行诊断,计算泄流值并与泄流标准限值进行对比,将泄流值和试验结果发送给CCU,并在HMI上显示;保压试验结束。
Test method for motor train unit brake cylinder pipeline leakage diagnosis
一种动车组制动缸管路泄露诊断的试验方法
2020-12-15
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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