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:
Aug. 20, 2013
Filed:
Jan. 19, 2010
Paul Kapus, Judendorf, AT;
Paul Kapus, Judendorf, AT;
AVL List GmbH, Graz, AT;
Abstract
The invention relates to a method for operating an internal combustion engine () with two-stage turbocharging by a low-pressure exhaust gas turbine () and a high-pressure exhaust gas turbine (), the low-pressure exhaust gas turbine () being positioned downstream of the high-pressure exhaust gas turbine () in the exhaust system () of the internal combustion engine (), and the high-pressure exhaust gas turbine () being provided with a bypass line () with a control valve (). In order to achieve quick response of the internal combustion engine () in transient operation, it is provided that continuously or periodically at certain intervals preferably an electronic control unit will check whether a steady-state or a transient operating state of the internal combustion engine () is prevailing, and that the control valve () is controlled in accordance with at least one steady-state characteristic map () in the steady-state case and in accordance with at least one transient characteristic map () or a transient function in the transient case.