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:
Jan. 17, 2006
Filed:
Mar. 12, 2004
Klaus Joos, Walheim, DE;
Thomas Frenz, Noerdlingen, DE;
Bernd Kudicke, Brackenheim, DE;
Claus Schneider, Leinfelden-Echterdingen, DE;
Markus Amler, Leonberg-Gebersheim, DE;
Tobias Flaemig-vetter, Esslingen, DE;
Uwe Schaupp, Wernau, DE;
Klaus Joos, Walheim, DE;
Thomas Frenz, Noerdlingen, DE;
Bernd Kudicke, Brackenheim, DE;
Claus Schneider, Leinfelden-Echterdingen, DE;
Markus Amler, Leonberg-Gebersheim, DE;
Tobias Flaemig-Vetter, Esslingen, DE;
Uwe Schaupp, Wernau, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
Method for operating an internal combustion engine in which fuel is injected into a combustion chamber by an injector. The injector has a drivable piezo-actuator. A setpoint value is generated for driving the piezo-actuator. A setpoint charge quantity (QC) is determined from the setpoint value, and an actual charge quantity (QC) supplied to the piezo-actuator is determined. The setpoint charge quantity (QC) and the actual charge quantity (QC) are combined, and the combined result (S) acts upon the drive circuit of the piezo-actuator.