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Exhaust gas bypass valve control for thermoelectric generator

United States Patent

September 4, 2012
View the Complete Patent at the US Patent & Trademark Office
A method of controlling engine exhaust flow through at least one of an exhaust bypass and a thermoelectric device via a bypass valve is provided. The method includes: determining a mass flow of exhaust exiting an engine; determining a desired exhaust pressure based on the mass flow of exhaust; comparing the desired exhaust pressure to a determined exhaust pressure; and determining a bypass valve control value based on the comparing, wherein the bypass valve control value is used to control the bypass valve.
Reynolds; Michael G. (Troy, MI), Yang; Jihui (Lakeshore, CA), Meisner; Greogry P. (Ann Arbor, MI), Stabler; Francis R. (Troy, MI), De Bock; Hendrik Pieter (Peter), Jacobus (Clifton Park, NY), Anderson; Todd Alan (Niskayuna, NY)
GM Global Technology Operations LLC (Detroit, MI), General Electric Company (Schenectady, NY)
12/ 437,890
May 8, 2009
GOVERNMENT RIGHTS This invention was made with Government support under U.S. Government contract DE-FC26-04NT 42278 awarded by the United States Department of Energy. The Government has certain rights in this invention.