Method for diagnosing a liquid-cooled exhaust manifold of an internal combustion engine
AssigneeContinental Automotive GmbH
InventorsGerhard Eser, Paul Rodatz
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AssigneeContinental Automotive GmbH
InventorsGerhard Eser, Paul Rodatz
Estimating the term…
A method is provided for checking the functional capacity of a liquid-cooled exhaust manifold of an internal combustion engine, having an exhaust line connected to the exhaust manifold, in the course of which an exhaust gas sensor having an electrical heater is arranged. During the operation of the internal combustion engine, the electrical resistance of the exhaust gas sensor is determined, on the basis of which the current value of the exhaust gas temperature is evaluated, and compared to a target value of the exhaust gas temperature, which is expected at this point in the operation of the internal combustion engine. Depending on the result of the comparison, the functional capacity of the liquid-cooling of the exhaust manifold is estimated.
A method for testing the functionality of a liquid-cooled exhaust manifold of an internal combustion engine having an exhaust line connected to the exhaust manifold and an exhaust-gas sensor provided with an electric heating device, comprising:
Logic instructions for evaluating the functionality of a liquid-cooled exhaust manifold of an internal combustion engine having an exhaust line connected to the exhaust manifold and an exhaust-gas sensor provided with an electric heating device, the logic instruction stored in non-transitory computer-readable media and executable by a process to:
Dependencies are inferred from the claim text.