Method for detecting continuous injection during the operation of an internal combustion engine, injection system for an internal combustion engine and internal combustion engine
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United States of America Patent
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Oct 13, 2020
Grant Date -
Jan 11, 2018
app pub date -
Mar 16, 2016
filing date -
Apr 29, 2015
priority date (Note) -
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Abstract
A method for detecting continuous injection during the operation of an internal combustion engine with an injection system having a high-pressure accumulator for a fuel, wherein—a high pressure in the injection system is monitored as a function of time, wherein—in order to detect continuous injection it is checked whether the high pressure has dropped by a predetermined continuous injection differential pressure value within a predetermined continuous injection time interval, wherein—it is checked whether a reduction valve which connects the high-pressure accumulator to a fuel reservoir has been triggered, and wherein—continuous injection is detected if—a reduction valve has not been triggered in a predetermined checking time interval before the dropping of the high pressure, and if—the high pressure has dropped by the predetermined continuous injection differential value amount within the predetermined continuous injection time interval.
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