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:
Feb. 17, 2015
Filed:
May. 08, 2012
Yue-yun Wang, Troy, MI (US);
Ibrahim Haskara, Macomb, MI (US);
Claudio Ciaravino, Turin, IT;
Alberto Vassallo, Turin, IT;
Yue-Yun Wang, Troy, MI (US);
Ibrahim Haskara, Macomb, MI (US);
Claudio Ciaravino, Turin, IT;
Alberto Vassallo, Turin, IT;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A compression-ignition engine is coupled to an exhaust aftertreatment system including a particulate filter. A method of operating the compression-ignition engine includes executing a feed-forward control scheme to determine an amount of post-combustion fuel to achieve a preferred temperature in the exhaust gas feedstream at an inlet to the particulate filter. The amount of post-combustion fuel is a nominal post-combustion fuel amount adjusted for a biodiesel blend ratio of the fuel. The post-combustion fuel is injected upstream of the exhaust aftertreatment system in response to a command to regenerate the particulate filter.