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. 24, 2002
Filed:
May. 04, 2000
Taner Tuken, Columbus, IN (US);
Donald J. Benson, Columbus, IN (US);
John T. Carroll, III, Columbus, IN (US);
Yul J. Tarr, Columbus, IN (US);
Cummins, Inc., Columbus, IN (US);
Abstract
A fuel injection pressure control system includes a control strategy operable to measure or estimate actual fuel injection pressure and control the operation of a fuel supply pump to thereby quickly and accurately control fuel injection pressure. The control strategy includes a closed-loop control strategy operable to compensate for instantaneous changes in system non-linearities, including fuel pump non-linearities and the like, and an open-loop control strategy operable to compensate for all system variations as well as system non-linearities, including between-engine variations in system operating parameters and other noise factors including deteriorating conditions, changes in environment and the like. Each strategy includes an adaptive controller operable to update one or more control parameters to thereby guarantee closed-loop stability, provide for fast and accurate system response during transient events, and minimize overshoots and undershoots.