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. 23, 2016
Filed:
Aug. 09, 2013
Tula Technology, Inc., San Jose, CA (US);
Mark A. Wilcutts, Berkeley, CA (US);
Xin Yuan, Palo Alto, CA (US);
Joshua P. Switkes, Menlo Park, CA (US);
Steven E. Carlson, Oakland, CA (US);
John F. Impeduglia, Simpsonville, SC (US);
John W. Parsels, San Jose, CA (US);
Tula Technology, Inc., San Jose, CA (US);
Abstract
A variety of methods and devices for mitigating power train vibration during skip fire operation of an engine are described. In one aspect, the slip of a drive train component (such as a torque converter clutch) is based at least in part upon a skip fire characteristic (such as firing fraction, selected firing sequence/pattern, etc.) during skip fire operation of an engine. The modulation of the drive train component slip can also be varied as a function of one or more engine operating parameters such as engine speed and/or a parameter indicative of the output of fired cylinders (such as mass air charge).