Method for the injector-specific diagnosis of a fuel injection device and internal combustion engine having a fuel injection device
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United States of America Patent
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Feb 27, 2018
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Aug 1, 2014
filing date -
Aug 15, 2013
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Abstract
A method for the injector-specific diagnosis of a fuel injection device of an internal combustion engine, including the following steps: detecting a pressure progression in an individual accumulator of an injector in a time-resolved manner; evaluating the detected pressure progression; determining if there is a fault state of the injection device in the region of the injector on the basis of the detected and evaluated pressure progression; and identifying the fault state on the basis of the detected and evaluated pressure progression.
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