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:
Dec. 05, 2000
Filed:
Mar. 20, 1999
Roland Bischoff, Pluderhausen, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a method of controlling the charge air mass flow of an internal combustion engine having an exhaust gas turbocharger with adjustable turbine geometry and a control unit for controlling the operation of the turbocharger, the intake air and exhaust gas pressures are determined and a corresponding differential pressure value is generated which is compared with a desired differential pressure value for generating a control signal on the basis of which the turbine geometry is adjusted and, during instationary engine operation when an increased engine load is required, the turbine geometry adjustment is modified so as to reduce the turbine inlet flow cross-section to thereby increase the engine charge air pressure.