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:
Nov. 23, 2021
Filed:
Sep. 23, 2017
Volvo Truck Corporation, Gothenburg, SE;
Adam Myers, Hagerstown, MD (US);
Russell King, Williamsport, MD (US);
Jan Wiman, Hagerstown, MD (US);
Georgios Angelidis, Kalamazoo, MI (US);
Adam Myers, Hagerstown, MD (US);
Russell King, Williamsport, MD (US);
Jan Wiman, Hagerstown, MD (US);
Georgios Angelidis, Kalamazoo, MI (US);
Volvo Truck Corporation, Gothenburg, SE;
Abstract
A method is provided for measuring exhaust gas recirculation (EGR) flow in. an engine system wherein turbo speed of a turbocharger, inlet pressure upstream of a compressor, boost pressure upstream of an engine, and engine intake temperature upstream of the engine are measured. Air mass flow into the engine system is calculated as a function of the turbo speed, inlet pressure, and boost pressure, exhaust mass flow is calculated as a function of the boost pressure, the engine intake temperature, volumetric efficiency of the engine, and engine size, and EGR flow is determined, by subtracting air mass flow from exhaust mass flow. A method for controlling emissions from an engine system, and an. engine system are also provided.