Method for operating a common-rail system of a motor vehicle having a redundant common-rail-pressure sensor

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United States of America Patent

PATENT NO 9863358
SERIAL NO

14783822

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Abstract

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A method for operating a common-rail system of a motor vehicle that includes a common-rail-pressure sensor configuration having at least two signal paths, and that can be operated at a maximally permissible common-rail pressure and at a minimally permissible common-rail pressure. Sensor signals are read out in each case in response to a pressure measurement in a common rail of the common-rail system via the at least two signal paths, and a signal deviation value is ascertained that characterizes a deviation between the pressure values that are each determined on the basis of the sensor signals. The method includes reducing the maximally permissible common-rail pressure by a correction value to a maximally permissible emergency common-rail pressure and/or increasing the minimally permissible common-rail pressure by a correction value to a minimally permissible emergency common-rail pressure in response to the signal deviation value exceeding a predefined value.

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBHPOSTFACH 30 02 20 70442 STUTTGART

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Becker, Bernd Stuttgart, DE 41 311
Sommerer, Andreas Kernen, DE 9 41
Veit, Guenter Plochingen, DE 9 49
Wipplinger, Kai Esslingen, DE 3 0
Zieher, Rene Edingen-Neckarhausen, DE 8 42

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