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:
Jan. 30, 2018
Filed:
Sep. 14, 2016
Drushan Mavalankar, Rochester Hills, MI (US);
Ethan E Bayer, Lake Orion, MI (US);
John R Bucknell, Royal Oak, MI (US);
Sangeeta Theru, Troy, MI (US);
Drushan Mavalankar, Rochester Hills, MI (US);
Ethan E Bayer, Lake Orion, MI (US);
John R Bucknell, Royal Oak, MI (US);
Sangeeta Theru, Troy, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
A system and method for controlling condensation formation in an engine having EGR and forced induction includes a controller for determining a water vapor mass fraction of an exhaust stream based on a water vapor mass fraction of an intake stream and water vapor from combustion. An estimated condensation temperature (CT) is determined for a current EGR level based on the water vapor mass fractions and is compared to an intake stream temperature upstream of the compressor inlet. The controller commands the current EGR level as a maximum EGR level upon determining the intake stream temperature is less than the CT, and an increase in the current EGR level upon determining the intake stream temperature is greater than the CT. An air charge temperature (ACT) of the forced induction system may be controlled based on utilizing a target ACT as the CT to be controlled by a coolant pump.