ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,953, issued on Feb. 17, was assigned to SUBARU Corp. (Tokyo).
"State determination device for fuel cell stack" was invented by Yushi Fukutomi (Tokyo), Tomohiro Abe (Tokyo) and Pei Pei (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A state determination device for a fuel cell stack includes: a fuel cell stack including at least one cell; and a control device that performs a state determination of the fuel cell stack by applying a measurement load waveform to the cell. The control device: generates a learning waveform; generates a measurement load waveform to be used this time by using, as reference values, membrane resistance, charge transfer ...