ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,945, issued on Sept. 2, was assigned to BEIJING JIAOTONG UNIVERSITY (Beijing).

"Method and system for virtually coupled train set control" was invented by Hongjie Liu (Beijing), Xiaolin Luo (Beijing), Tao Tang (Beijing), Ming Chai (Beijing), Shuai Su (Beijing) and Jidong Lv (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system for virtually coupled train set (VCTS) control is provided. The method includes following steps: determining whether to execute a backup control strategy based on an actual state for a current cycle of each train unit and a target state sequence for a first preset number of cycles before the current cycle...