ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,568, issued on Feb. 3, was assigned to VOLVO TRUCK Corp. (Gothenburg, Sweden).

"Method for controlling the operation of a hydrogen combustion engine system" was invented by Lennart Andersson (Skallinge, Sweden) and Jonas Jansson (Hono, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling the operation of a hydrogen combustion engine system of a vehicle. The hydrogen combustion engine system has a hydrogen combustion engine and an EATS to reduce emissions in the engine exhausts. The EATS has a selective catalyst reduction, SCR, catalyst and an ammonia slip catalyst, ASC, arranged downstream of the SCR catalyst. The method com...