ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,039, issued on April 21, was assigned to Siemens AG (Munich).
"Charging energy storage units of a vehicle at weak energy supply systems" was invented by Christian Gritsch (Nuremberg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An on-board power subsystem has an energy storage unit and a control device for charging the energy storage unit, as well as an on-board power connection for connection to electrical components of the vehicle, and a DC voltage connection for connection to a land-based charging station and an energy subsystem. A switching device is arranged between the on-board power connection and the energy subsystem, and a charge...