US Patent Issued to Mitsubishi Electric on Jan. 13 for "Drive control device and drive device for railway vehicle" (Japanese Inventor)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,256, issued on Jan. 13, was assigned to Mitsubishi Electric Corp. (Tokyo).

"Drive control device and drive device for railway vehicle" was invented by Tomohiro Oba (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive control device includes a self-excited generator to generate and output electric power by being driven by an internal combustion engine, and a separately excited generator to generate and output electric power by being driven by the internal combustion engine when the separately excited generator is in an excited state. The drive control device further includes a first power converter to convert electric power fed from the sepa...