Method for operating an internal combustion engine
OwnerGuido Porten, Klaus Winkler +2inventors
InventorsGuido Porten, Klaus Winkler, Thomas Zein, Uwe Mueller
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Abstract
In a method for operating an internal combustion engine, a measured NOx actual value is compared to an NOx setpoint value, and an exhaust gas recirculation is controlled as a function of a deviation of the NOx actual value from the NOx setpoint value. Respective portions of internally recirculated exhaust gases and externally recirculated exhaust gases of a total of recirculated exhaust gases are adjusted for controlling the exhaust gas recirculation.
Claims11
1-10. (canceled)
A method for operating an internal combustion engine, comprising:
- comparing a measured NOx actual value to an NOx setpoint value;
- and
- controlling an exhaust gas recirculation as a function of a deviation of the NOx actual value from the NOx setpoint value, wherein respective portions of internally recirculated exhaust gases and externally recirculated exhaust gases of a total of recirculated exhaust gases are adjusted as a function of the deviation of the NOx actual value from the NOx setpoint value for controlling the exhaust gas recirculation.
A control device for operating an internal combustion engine, comprising:
- a measuring unit configured to measure an NOx actual value;
- a comparator configured to compare the measured NOx actual value to an NOx setpoint value;
- and
- a controller configured to control an exhaust gas recirculation as a function of a deviation of the NOx actual value from the NOx setpoint value, wherein respective portions of internally recirculated exhaust gases and externally recirculated exhaust gases of a total of recirculated exhaust gases are adjusted as a function of the deviation of the NOx actual value from the NOx setpoint value for controlling the exhaust gas recirculation.
Dependencies are inferred from the claim text.