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. 06, 2002
Filed:
Feb. 05, 2001
Emad S. Isaac, Woodridge, IL (US);
John E. Bernhardt, Evergreen Park, IL (US);
Michael J. McNulty, Lombard, IL (US);
International Engine Intellectual Property Company, L.L.C., Warrenville, IL (US);
Abstract
A variable nozzle turbocharger ( ) creates engine boost. Boost is controlled by controlling the position of vanes within turbocharger. A processor develops a control signal ( ) for controlling vane position. The processor develops a value for desired boost and processes that value with a value. corresponding to the amount of boost being created by the turbocharger to generate error data ( A) defining error between the amount of boost being created by the turbocharger and the desired boost, and the processor develops a component of the control signal by P-LI-D processing ( ) of the error data. Other components of the control signal are a feed-forward value from a look-up table ( ) and a value from an overspeed protection function ( ).