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.

Date of Patent:
May. 24, 2016

Filed:

Jun. 11, 2013
Applicant:

Avl Test Systems, Inc., Plymouth, MI (US);

Inventors:

William Martin Silvis, Ann Arbor, MI (US);

Sarah Montgomery Kingham, Dexter, MI (US);

Assignee:

AVL TEST SYSTEMS, INC., Plymouth, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 15/10 (2006.01); G01N 1/22 (2006.01); G01N 33/00 (2006.01); F01N 11/00 (2006.01); F02D 41/14 (2006.01); F02D 41/28 (2006.01);
U.S. Cl.
CPC ...
G01N 33/0006 (2013.01); F01N 11/00 (2013.01); F02D 41/1444 (2013.01); F02D 41/1445 (2013.01); F02D 41/28 (2013.01); G01M 15/10 (2013.01); G01M 15/102 (2013.01); G01N 1/22 (2013.01); G01N 1/2252 (2013.01); F01N 2560/00 (2013.01); F02D 41/1466 (2013.01); F02D 41/1467 (2013.01); F02D 2041/288 (2013.01); F02D 2250/14 (2013.01); Y02T 10/47 (2013.01);
Abstract

A system and method is provided for synchronizing a first and second signal of an exhaust sampling system. The first signal is generated by a first instrument and includes an exhaust flow rate component and a first instrument time stamp component. The second signal is generated by a second instrument and includes a pollutant concentration component and a second instrument time stamp component. The second instrument also generates a tertiary signal that has been influenced by the first signal and includes a second instrument time stamp component. A synchronization module determines a time relationship for synchronizing the first signal and the second signal by comparing the first flow rate component and the first instrument time stamp component of the first signal to the tertiary signal and the second instrument time stamp component of the tertiary signal. The synchronization provides accurate calculation of a pollutant mass flow rate.


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