US Patent Issued to Volkswagen on Aug. 4 for "Method and apparatus for detecting the operation of an engine-independent auxiliary heater and for diagnosing a coolant temperature of a motor vehicle" (German Inventor)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,855, issued on Aug. 4, was assigned to Volkswagen AG (Wolfsburg, Germany).

"Method and apparatus for detecting the operation of an engine-independent auxiliary heater and for diagnosing a coolant temperature of a motor vehicle" was invented by Tristan Borchert (Braunschweig, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for detecting the operation of an engine-independent auxiliary heater in a cooling system with multiple coolant circuits in a vehicle system with an auxiliary heater. On or after activating the vehicle system for a cold start, a shut-off valve is opened between a first coolant circuit with the auxiliary...