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:
Dec. 06, 2016
Filed:
May. 06, 2014
Ford Global Technologies, Llc, Dearborn, MI (US);
Paul Zeng, Inkster, MI (US);
Vince Paul Solferino, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method is provided which mitigates the noise of a direct injection system in a port fuel injection and direct fuel injection (PFI-DI) engine and reduces NVH hardware. During a cold-start, the engine idle speed may be increased to mitigate the direct injection noise and during a warm idle, the engine cooling fan may be turned on during a direct injector cleanout cycle to mitigate the direct injection noise. This allows the PFI-DI engine to be run more efficiently without concern of the noise produced by the direct injectors and high pressure pump of the direct injection system.