公开(公告)号：EP4257448A1

公开(公告)日：2023-10-11

申请号：EP21899501.7

申请日：2021-04-06

申请人： CRRC Qingdao Sifang Co., Ltd.

发明人： MA, Lijun ,  ZHANG, Zhenxian ,  FENG, Yonghua ,  ZHAO, Changlong ,  LIU, Shaoqing ,  LIANG, Haixiao ,  WEI, Jiaqi ,  ZHAO, Gumeng ,  LIANG, Junhai ,  ZHANG, Zhiyi ,  LIU, Yaping

IPC分类号： B61K9/12

摘要： A railway vehicle, and a control method and system for a tread profile of a railway vehicle. The control method comprises: step S1, obtaining a lateral acceleration signal of a wheel set; step S2, determining whether a first number of continuous peak values greater than or equal to a first set value present in the lateral acceleration signal or not, and if yes, executing the following step S3; step S3, controlling a tread modification device of a corresponding wheel set to enter a modification mode; step S4, determining whether a first action condition is satisfied or not, and if yes, executing the following step S5; step S5, controlling the tread modification device to perform online state repair on tread profiles of wheels of the corresponding wheel set; step S6, determining whether a second number of continuous peak values less than or equal to a second set value present in the lateral acceleration signal or not, and if yes, executing the following step S7, the second set value being less than the first set value; and step S7, controlling the tread modification device of the corresponding wheel set to exit the modification mode. By means of the control method, an off-line lathing cycle of wheels can be extended.