ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,022, issued on July 29, was assigned to Ford Global Technologies LLC (Dearborn, Mich.).
"Exhaust system valve diagnostics" was invented by Rani Kiwan (West Bloomfield, Mich.), Michiel J. Van Nieuwstadt (Ann Arbor, Mich.) and Chris Paul Glugla (Macomb, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for diagnosing operation of valves that control exhaust flow through crossover pipes are described. In one example, the diagnostics may be based on output of upstream and downstream oxygen sensors. In particular, correlation between output of an upstream oxygen sensor and a downstream oxygen sensor may be indicative of a valve not...