Apparatus for Measuring Sealing Strength
US-2024175792-A1 · May 30, 2024 · US
Method for ascertaining an adhesion condition of a friction clutch
US9109990B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109990-B2 |
| Application number | US-201313863575-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2013 |
| Priority date | Apr 18, 2012 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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A method for ascertaining an adhesion condition of a friction clutch operated with specified slip between an input part and an output part. In the case of rotational speed differences in the range of noise in the latter, a mean value and its variance are continuously derived from measurements taken by an unfiltered rotational speed difference between the input part and the output part, and when the mean value falls below a specified threshold and simultaneously the variance exceeds the mean value, the adhesion condition is recognized.
First claim
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What is claimed is: 1. A method for ascertaining an adhesion condition of a friction clutch operated with specified slip between an input part and an output part, comprising the following steps: deriving a mean value and its variance continuously from measurements taken by means of an unfiltered rotational speed difference between said input part and said output part; and, when said mean value falls below a specified threshold and simultaneously said variance exceeds said mean v…
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- What does patent US9109990B2 cover?
- A method for ascertaining an adhesion condition of a friction clutch operated with specified slip between an input part and an output part. In the case of rotational speed differences in the range of noise in the latter, a mean value and its variance are continuously derived from measurements taken by an unfiltered rotational speed difference between the input part and the output part, and when…
- Who is the assignee on this patent?
- Schaeffler Technologies Ag
- What technology area does this patent fall under?
- Primary CPC classification G01N19/04. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).