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:
May. 27, 2014
Filed:
Nov. 07, 2012
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Ralf Daeubel, Markgroeningen, DE;
Michael Haufer, Heilbronn, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for determining the composition of a fuel mixture consisting of a first fuel and a second fuel to operate an internal combustion engine having at least one cylinder pressure sensor for determining the cylinder pressure in at least one cylinder of the internal combustion engine. The calorific value of the fuel mixture or a characteristic variable correlating to said calorific value is determined from the cylinder pressure and the composition of the fuel mixture is determined from said calorific value or the characteristic variable correlating to said calorific value.