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. 05, 2016
Filed:
Apr. 19, 2012
Wilhelm Blumendeller, Freiberg, DE;
Thomas Bleile, Stuttgart, DE;
Arvid Sievert, Esslingen, DE;
Martin Hoerner, Stuttgart, DE;
Rene Huck, Esslingen, DE;
Wilhelm Blumendeller, Freiberg, DE;
Thomas Bleile, Stuttgart, DE;
Arvid Sievert, Esslingen, DE;
Martin Hoerner, Stuttgart, DE;
Rene Huck, Esslingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a method for determining a low pressure exhaust gas recirculation mass flow {dot over (m)}in the air system of an internal combustion engine () with low pressure exhaust gas recirculation, the determination of the low pressure exhaust gas recirculation mass flow {dot over (m)}involves a preliminary low pressure exhaust gas recirculation mass flow {dot over (m)}which is determined from a function involving, in particular, the pressure pupstream and the pressure pdownstream of a low pressure side exhaust gas recirculation valve EGRVIvLP (), the temperature Tdownstream of the low pressure side exhaust gas recirculation valve (), and the geometry arof the low pressure side exhaust gas recirculation valve (). According to the invention, at least one mass balance based variable is also considered in the determination of the low pressure exhaust gas recirculation mass flow {dot over (m)}.