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. 30, 2019
Filed:
Nov. 01, 2017
Shu Wang, Rochester Hills, MI (US);
Ethan Bayer, Lake Orion, MI (US);
William P Attard, Brighton, MI (US);
Shu Wang, Rochester Hills, MI (US);
Ethan Bayer, Lake Orion, MI (US);
William P Attard, Brighton, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
Systems and methods for a turbocharged engine comprising an exhaust gas recirculation (EGR) valve and an EGR valve differential pressure sensor disposed in a low pressure EGR (LPEGR) system of the engine and a differential pressure (dP) valve that is distinct from a throttle valve and a dP valve outlet pressure sensor disposed in an induction system of the engine utilize a controller configured to, based on the sensed pressures, determine (i) a modeled pressure at the EGR pickup, (ii) a modeled pressure at outlet of an EGR cooler, (iii) a modeled pressure at an outlet of an air filter and (iv) a modeled pressure at the dP valve outlet, and control the dP valve and the EGR valve based on the modeled EGR pickup pressure, the modeled EGR cooler outlet pressure, the modeled air filter outlet pressure, and the modeled dP valve outlet pressure.