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:
Feb. 21, 2017
Filed:
Nov. 24, 2015
GM Global Technology Operations Llc, Detroit, MI (US);
Vincent J. Tylutki, Livonia, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Christopher Whitt, Howell, MI (US);
Cristian Taibi, Torino, IT;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method is disclosed for controlling a diesel engine equipped with a diesel particulate filter (DPF). The method includes detecting steady state operation of the engine generating a first flow rate of particulate matter (PM) directed into the DPF. The method also includes, during the steady state operation, triggering exhaust gas recirculation to the engine and thereby directing a second PM flow rate that is greater than the first flow rate into the DPF. The method additionally includes detecting a PM flow rate exiting the DPF in response to the second PM flow rate directed into the DPF. The method also includes comparing the detected PM flow rate exiting the DPF with a PM flow rate threshold. Furthermore, the method includes regulating injection of fuel to regenerate the DPF, if the detected PM flow rate exiting the DPF is greater than the PM flow rate threshold.