Patent ID: 7469692

Claim:
A power system, comprising: an exhaust producing engine; an exhaust system configured to direct exhaust gases produced by the engine away from the engine; an exhaust gas recirculation system, including: an exhaust gas recirculation flowpath; an air intake system of the engine, wherein the exhaust gas recirculation flowpath is configured to route a portion of exhaust gases produced by the engine back to the air intake system; and an exhaust gas recirculation valve configured to regulate the flow of exhaust gases through the exhaust gas recirculation flowpath; a monitoring system configured to monitor operating parameters of at least two components of the exhaust gas recirculation system; and a controller configured to: determine, based on the monitored operating parameters, a maximum flowrate value for each of the at least two components of the exhaust gas recirculation system, wherein each of the maximum flowrate values represents the maximum exhaust gas recirculation flowrate that may be utilized without exceeding a predetermined operating limit of the monitored component with which the respective maximum flowrate value is associated; and control the exhaust gas recirculation valve, based on the determined maximum flowrate values, to result in an exhaust gas recirculation flowrate no greater than the lowest of the determined maximum flowrate values.