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:
May. 25, 2021
Filed:
Dec. 14, 2017
Cummins Inc., Columbus, IN (US);
David M. Carey, Greenwood, IN (US);
Syed Shah Jalal, Indianapolis, IN (US);
Richard J. Dudek, Columbus, IN (US);
Ulf Carlsson, Columbus, IN (US);
Paul Peavler, Columbus, IN (US);
Cummins Inc., Columbus, IN (US);
Abstract
Methods and systems, using a controller (), for performing fuel pressure control operation of an engine () having at least one cylinder () is disclosed. The controller () includes a fuel system control unit () configured to control a fuel pressure applied to at least one injector () of the engine () during a motoring condition period () based on a commanded pulse train duration (). During the motoring condition period (), no combustion occurs in the at least one cylinder () of the engine (). The commanded pulse train duration is a time period during which the at least one injector () of the engine () is activated for a drain operation. The fuel system control unit () is configured to command the at least one injector (), for the commanded pulse train duration during the motoring condition period (), to release fuel from the at least one injector () without injecting the fuel into the at least one cylinder () of the engine ().