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:
Jul. 22, 2014
Filed:
Sep. 25, 2011
John N Chi, Columbus, IN (US);
John M Mulloy, Columbus, IN (US);
Sriram S Popuri, Greenwood, IN (US);
Timothy R Frazier, Columbus, IN (US);
Martin T Books, Columbus, IN (US);
Divakar Rajamohan, Columbus, IN (US);
Indranil Brahma, Bloomington, IN (US);
John N Chi, Columbus, IN (US);
John M Mulloy, Columbus, IN (US);
Sriram S Popuri, Greenwood, IN (US);
Timothy R Frazier, Columbus, IN (US);
Martin T Books, Columbus, IN (US);
Divakar Rajamohan, Columbus, IN (US);
Indranil Brahma, Bloomington, IN (US);
Cummins Inc., Columbus, IN (US);
Abstract
A system and method are provided for controlling an air handling system for an internal combustion engine including a turbocharger having a variable geometry turbine and a compressor having a fresh air inlet fluidly coupled to ambient and to an air outlet of an electric air pump. An air pump enable value as determined a function of target engine speed and total fuel target values and an air flow target is determined as a function of a target fresh air flow value. Operation of the electric air pump is activated to supply supplemental air flow to the fresh air inlet of the compressor if the air pump enable value is greater than a threshold air pump enable value and the air flow target does not exceed a maximum flow value.