The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2016
Filed:
Oct. 12, 2010
Stephan Topp, Leonberg, DE;
Rainer Peck, Ludwigsburg, DE;
Rene Zieher, Edingen-Neckarhausen, DE;
Christian Kriechbaum, Dossenheim, DE;
Steffen Meyer-salfeld, Leonberg, DE;
Stephan Topp, Leonberg, DE;
Rainer Peck, Ludwigsburg, DE;
Rene Zieher, Edingen-Neckarhausen, DE;
Christian Kriechbaum, Dossenheim, DE;
Steffen Meyer-Salfeld, Leonberg, DE;
ROBERT BOSCH GMBH, Stuttgart, DE;
Abstract
A method for monitoring a fuel pressure in a fuel injection system of an internal combustion engine. A setpoint fuel pressure is initially set in the fuel injection system. Next, a first fuel injection and a subsequent second fuel injection are executed at a time interval shorter than a decay time of a pressure wave in the fuel injection system, triggerable by the first fuel injection. In an additional step, a monitored fuel injection quantity, which is injected via the second fuel injection, is ascertained. An action is executed if the monitored fuel injection quantity differs from a setpoint fuel injection quantity, which is predefinable for the setpoint fuel pressure, by more than a limiting value. The invention also relates to a computer program product for executing the method and to a device for monitoring a fuel pressure in a fuel injection system of an internal combustion engine.