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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.:

US 10634076 B1

PDFFull Text
Date of Patent:
Apr. 28, 2020

Filed:

Oct. 19, 2018

Noise/vibration reduction control

Applicant:

Tula Technology, Inc., San Jose, CA (US);

Inventors:

Louis J. Serrano, Los Gatos, CA (US);

Vijay Srinivasan, Farmington Hills, MI (US);

Geoffrey Routledge, Gilroy, CA (US);

Mark A. Shost, Northville, MI (US);

Biswa R. Ghosh, Los Altos, CA (US);

Mark A. Wilcutts, Berkeley, CA (US);

Matthew A. Younkins, San Jose, CA (US);

Ying Ren, Fremont, CA (US);

Assignee:

Tula Technology, Inc., San Jose, CA (US);

Attorney:

Beyer Law Group LLP

Primary Examiner:

Mahmoud Gimie

Int. Cl.
CPC ...
F02D 41/04 (2006.01); F02D 13/02 (2006.01); F02D 13/06 (2006.01); F02D 41/00 (2006.01); F02P 5/15 (2006.01); F02D 41/26 (2006.01); F01L 1/047 (2006.01); F02P 5/145 (2006.01); F02D 41/12 (2006.01); F02D 41/10 (2006.01); F02D 17/02 (2006.01); G10K 11/178 (2006.01); F02N 11/08 (2006.01); G10K 11/16 (2006.01); F16F 15/02 (2006.01); F02P 9/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0087 (2013.01); F01L 1/047 (2013.01); F02D 13/0223 (2013.01); F02D 13/0273 (2013.01); F02D 13/06 (2013.01); F02D 17/02 (2013.01); F02D 41/0002 (2013.01); F02D 41/008 (2013.01); F02D 41/04 (2013.01); F02D 41/107 (2013.01); F02D 41/123 (2013.01); F02D 41/26 (2013.01); F02N 11/0837 (2013.01); F02P 5/145 (2013.01); F02P 5/15 (2013.01); F02P 5/1502 (2013.01); G10K 11/16 (2013.01); G10K 11/1785 (2018.01); G10K 11/17883 (2018.01); F02D 2041/001 (2013.01); F02D 2041/0012 (2013.01); F02D 2250/18 (2013.01); F02P 9/002 (2013.01); F16F 15/02 (2013.01); G10K 2210/1282 (2013.01); G10K 2210/3211 (2013.01); G10K 2210/3212 (2013.01); Y02T 10/142 (2013.01); Y02T 10/42 (2013.01);
Abstract

Systems and methods for reducing noise or vibration generated by an internal combustion engine are described. An engine controller is arranged to operate the working chambers of the engine in a cylinder output level modulation manner A noise/vibration reduction unit actively control of a device that is not a part of the powertrain. The device is controlled in a feed forward manner to alter an NVH characteristic of the vehicle in a desired manner based at least in part on a characteristic of the cylinder output level modulation operation of the engine.

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