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:
Oct. 23, 2007
Filed:
Jun. 30, 2005
Franz Butscher, Friedrichshafen, DE;
Stephan Uhl, Friedrichshafen, DE;
Franz Butscher, Friedrichshafen, DE;
Stephan Uhl, Friedrichshafen, DE;
MTU Friedrichshafen GmbH, Friedrichshafen, DE;
Abstract
A device and a method for closed-loop control of at least a first exhaust gas turbocharger with variable turbine geometry. In this regard, a first closed-loop control system is provided for automatically controlling the charge air pressure, and a second closed-loop control system is provided for automatically controlling the turbine speed. The second closed-loop control system is subordinate to the first closed-loop control system. The correcting variable (SG) of the first closed-loop control system corresponds to the reference input of the second closed-loop control system.