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Perturbing engine performance measurements to determine optimal engine control settings

United States Patent

December 30, 2014
View the Complete Patent at the US Patent & Trademark Office
Methods and systems for optimizing a performance of a vehicle engine are provided. The method includes determining an initial value for a first engine control parameter based on one or more detected operating conditions of the vehicle engine, determining a value of an engine performance variable, and artificially perturbing the determined value of the engine performance variable. The initial value for the first engine control parameter is then adjusted based on the perturbed engine performance variable causing the engine performance variable to approach a target engine performance variable. Operation of the vehicle engine is controlled based on the adjusted initial value for the first engine control parameter. These acts are repeated until the engine performance variable approaches the target engine performance variable.
Jiang; Li (Ann Arbor, MI), Lee; Donghoon (Ann Arbor, MI), Yilmaz; Hakan (Ann Arbor, MI), Stefanopoulou; Anna (Ann Arbor, MI)
Robert Bosch GmbH (Stuttgart, DE)
13/ 435,551
March 30, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under grant No. DE-FC26-07NT43274 awarded by the Department of Energy. The government has certain rights in the invention.