US Patent Issued to Volkswagen on May 5 for "Method and device for estimating an internal resistance of a battery cell" (Czech, German Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,916, issued on May 5, was assigned to Volkswagen AG (Wolfsburg, Germany).

"Method and device for estimating an internal resistance of a battery cell" was invented by Jiri Valtr (Prague), Marian Vlcek (Prague), Adam Hrazdira (Prague) and Stefan Aust (Braunschweig, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Technologies and techniques for estimating an internal resistance of a battery cell. A voltage and a current are detected at the battery cell. A detected voltage differential is determined by differentiating the detected voltage using a filter, and a modelled voltage differential is determined from the detected current and an actual inter...