公开(公告)号：US20230219548A1

公开(公告)日：2023-07-13

申请号：US18187978

申请日：2023-03-22

申请人： CRRC TANGSHAN CO., LTD.

发明人： Shan GAO ,  Chunjie XIE ,  Jiaying QIN ,  Congxi WEN ,  Huaming LI ,  Jianquan LIANG ,  Zhenhong WANG ,  Hongmei XU ,  Xiaolei WANG ,  Liming SHANG ,  Xuansheng CHEN

IPC分类号： B60T11/10 ,  B60T8/17 ,  B60T8/171 ,  B60T13/26 ,  B60T13/68 ,  B60T17/22

CPC分类号： B60T11/101 ,  B60T8/1705 ,  B60T8/171 ,  B60T13/26 ,  B60T13/683 ,  B60T17/228

摘要： Disclosed are a pressure control method and a pressure control device for a braking cylinder of a rail vehicle, and the rail vehicle. The method includes the following steps: acquiring the air charge-release volume of the braking cylinder of the rail vehicle and the air flowrate of the braking cylinder; determining the charge-release duration according to the air charge-release volume of the braking cylinder and the air flowrate of the braking cylinder, and controlling the charge-release working duration of the air charge-release solenoid valve according to the air charge-release duration; when the working duration of the air charge-release solenoid valve reaches the charge-release duration, acquiring the predictive pressure of the braking cylinder, and controlling the working state of the air charge-release solenoid valve according to the predictive pressure.