초록

In a method and device for controlling an internal combustion engine having an exhaust treatment system, a quantity characterizing the status of the exhaust treatment system is determined on the basis of at least one operating parameter of the internal combustion engine.

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1. A method for controlling an internal combustion engine having an exhaust treatment system that includes a particle filter, comprising:calculating a loading state of the filter, the process of calculating including:determining a particulate emission rate of the internal combustion engine based on

1. A method for controlling an internal combustion engine having an exhaust treatment system that includes a particle filter, comprising:calculating a loading state of the filter, the process of calculating including:determining a particulate emission rate of the internal combustion engine based on at least: a) one first operating parameter of the internal combustion engine; and b) an oxygen concentration in exhaust gas of the internal combustion engine;integrating the particulate emission rate over time, resulting in a loading state of the particle filter; anddetecting an error in a state of congestion derived based on exhaust gas flow rate in accordance with the loading state resulting from the integration.2. The method according to claim 1, wherein the at least one operating parameter includes at least one of a rotational speed and a signal characterizing an injected fuel volume.3. The method according to claim 1, wherein the step of determining the particulate emission rate includes considering an additional variable representing a temperature in the exhaust treatment system.4. The method according to claim 1, further comprising the step of controlling the exhaust treatment system during a normal operation in accordance with the quantity.5. The method according to claim 1, further comprising the step of controlling the exhaust treatment system during an emergency operation in accordance with the quantity.6. A device for controlling an internal combustion engine having an exhaust treatment system including a particle filter, comprising:a processing unit configured to:calculate a loading state of the filter by:determining a particular emission rate of the internal combustion engine based on at least: a) one first operating parameter of the internal combustion engine; and b) an oxygen concentration in exhaust gas of the internal combustion engine;integrating the particle emission rate over time, resulting in a loading state of the particle filter; anddetecting an error in a state of congestion derived based on exhaust gas flow rate in accordance with the loading state resulting from the integration.