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. 05, 2019
Filed:
Sep. 07, 2016
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Renault S. A. S., Boulogne-Billancourt, FR;
NISSAN MOTOR CO., LTD., Yokohama-shi, JP;
RENAULT S.A.S., Boulogne-Billancourt, FR;
Abstract
A basic opening (A0) of an EGR control valve () is set, based on a current engine operation state. A differential pressure (ΔP1) across the EGR control valve () is calculated, based on an actual exhaust system temperature (T1) sensed by an exhaust temperature sensor (). A reference differential pressure (ΔP0) is calculated, which is a differential pressure across the EGR control valve () in a steady state corresponding to the current engine operation state. A reference pulsation amplitude (D) is calculated, which is an amplitude of pulsation of the reference differential pressure (ΔP0). The basic opening (A0) is corrected, based on the differential pressure (ΔP1), the reference differential pressure (ΔP0), and the reference pulsation amplitude (D).