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:
Jul. 11, 2000
Filed:
Apr. 01, 1999
Roland Bischoff, Pluederhausen, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a process for adjusting an exhaust gas turbocharger having a variable turbine geometry in the engine braking operation, engine operating parameters are measured for determining an actuating signal influencing the position of the turbine geometry. In order to provide a brake performance maximum for all rotational speed ranges of the engine, the charging pressure in the intake pipes and the exhaust gas counterpressure in the exhaust gas pipes are measured as engine operating parameters in front of the exhaust gas turbocharger, a total pressure is determined as the sum of the charging pressure and the exhaust gas counterpressure, and the turbine geometry is adjusted to such an extent that the total pressure corresponds to a maximal pressure.