Patent ID: 9534533
Date: 2017-01-03
CPC Classifications: F02B,F02D,Y02T

Claim:
1. An apparatus for controlling an air system of a diesel engine in a steady state, wherein the air system comprises an exhaust gas recirculation system and a turbocharge system, the apparatus comprising: an operation condition acquiring module configured to acquire actual operation condition parameters indicating an actual operation condition of the diesel engine; a decoupling computation module coupled to the operation condition acquiring module, configured to compute a decoupling transfer function based on the parameters from the operation condition acquiring module and on a transfer function characterizing a relation between outputs (i) an opening of an exhaust gas recirculation valve of the exhaust gas recirculation system and (ii) an opening of a supercharge valve of the turbocharge system, and inputs (a) an exhaust gas recirculation flow ratio and (b) an intake air pressure of the diesel engine; an air system parameter processing module coupled to the operation condition acquiring module, configured to process parameters indicating a state of the air system, the state of the air system including the exhaust gas recirculation flow ratio and the intake air pressure of the diesel engine; and a signaling generating module coupled to the decoupling computation module and the air system parameter processing module and to the exhaust gas recirculation system and to the turbocharge system, configured to generate and provide a first driving signal to drive the exhaust gas recirculation system and a second driving signal to drive the turbocharge system based on the decoupling transfer function from the decoupling computation module and on the processing performed by the air system parameter processing module.