ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,228, issued on Nov. 4, was assigned to AUDI AG (Ingolstadt, Germany).
"Method for a frost start of a fuel cell device, fuel cell device and motor vehicle having a fuel cell device" was invented by Oliver Keitsch (Heilbronn, Germany), Armin Siebel (Neckarsulm, Germany) and Sebastian Voigt (Heilbronn, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for a frost start of a fuel cell device having a fuel cell stack, in which a plurality of fuel cells electrically switched in series is pressed by a compression force of a clamping device between two end plates, comprises determining the presence of frost start conditions, reducing the compre...