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 6741938 B1

PDF
Full Text
Expired
Date of Patent:
May. 25, 2004

Filed:

Oct. 30, 2001
Applicant:
Inventor:

Axel H Berndorfer, El Paso, TX (US);

Assignee:

Delphi Technologies, Inc., Troy, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 3/100 ;
U.S. Cl.
CPC ...
G01N 3/100 ;
Abstract

A method for continuously predicting remaining engine oil life includes counting down a remaining oil life (ROL) from 100% ROL to a predetermined warning threshold at a first rate. If an oil life event occurs prior to the threshold, the countdown rate is increased until the threshold is reached. On the other hand, if the threshold is reached and the oil life event has not yet occurred, the countdown rate is decreased until the oil life event occurs. During the countdown, if fresh oil or an additive is added to the oil, the countdown rate is adjusted in a positive direction. On the other hand, if the oil becomes contaminated, the countdown rate is adjusted in a negative direction.


Find Patent Forward Citations

Berndorfer, Axel. (2004). Method for continuously predicting remaining engine oil life (U.S. Patent No. 6741938). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6741938

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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