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. 31, 2019
Filed:
Jul. 13, 2018
Applicant:
Tula Technology, Inc., San Jose, CA (US);
Inventors:
Vijay Srinivasan, Farmington Hills, MI (US);
Louis J. Serrano, Los Gatos, CA (US);
Siamak Hashemi, Farmington Hills, MI (US);
Robert S. Bailey, San Jose, CA (US);
Geoffrey Routledge, Gilroy, CA (US);
Assignee:
Tula Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 5/15 (2006.01); F02D 17/02 (2006.01); F02D 41/00 (2006.01); F02D 41/02 (2006.01); F02D 41/04 (2006.01); F02D 41/14 (2006.01); F02D 41/24 (2006.01); F02P 9/00 (2006.01);
U.S. Cl.
CPC ...
F02D 17/02 (2013.01); F02D 41/0087 (2013.01); F02D 41/021 (2013.01); F02D 41/0225 (2013.01); F02D 41/047 (2013.01); F02D 41/1406 (2013.01); F02D 41/2422 (2013.01); F02P 5/1512 (2013.01); F02P 9/002 (2013.01); F02D 2200/021 (2013.01); F02D 2200/025 (2013.01); F02D 2200/101 (2013.01); F02D 2200/501 (2013.01); F02D 2200/702 (2013.01); F02D 2250/18 (2013.01);
Abstract
Methods and controllers are described that facilitate the determination of an operational skip fire firing fraction for an engine based at least in part noise levels and/or vehicle vibration levels that are not induced by engine operation. In some embodiments, the firing fraction is determined based at least in part of noise or vibrations associated with road roughness and/or cabin noise levels.