Method and device for recognizing rotational speed / torque fluctuations in a drive device
US-9250157-B2 · Feb 2, 2016 · US
Method for reducing chatter vibrations of a friction clutch in a drivetrain of a motor vehicle
US9518624B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9518624-B2 |
| Application number | US-201414783271-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 1, 2014 |
| Priority date | Apr 11, 2013 |
| Publication date | Dec 13, 2016 |
| Grant date | Dec 13, 2016 |
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Abstract
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A method for reducing chatter vibrations of a friction clutch controlled automatically by a clutch actuator on the basis of a target clutch torque assigned to a clutch torque which is to be transmitted. The clutch has a present actual clutch torque which is marked by vibrations as a result of chatter vibrations which occur occasionally. In order to achieve a reduction of the chatter vibrations, from an input signal that is representative of the clutch torque that is marked by vibrations, on the basis of a vibration-selective guidance variable derived in a torque pattern between internal combustion engine and friction clutch, an absolute amplitude and a phase of the input signal are ascertained on the basis of a transfer function which maps the guidance variable on a vibration-selective clutch torque; from that a correction clutch torque is determined; and using that the target clutch torque is corrected.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for reducing chatter vibrations of a friction clutch situated in a drivetrain of a motor vehicle between an internal combustion engine and a transmission, controlled automatically by a clutch actuator, on the basis of a target torque (M(target)) assigned to a clutch torque that is to be transmitted, having an actual present clutch torque (M(actual)) which is marked by vibrations as a result of occasionally occurring vibrations, comprising: obt…
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Cross-Sectional Technologies · mapped topic
- F16D48/06Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9518624B2 cover?
- A method for reducing chatter vibrations of a friction clutch controlled automatically by a clutch actuator on the basis of a target clutch torque assigned to a clutch torque which is to be transmitted. The clutch has a present actual clutch torque which is marked by vibrations as a result of chatter vibrations which occur occasionally. In order to achieve a reduction of the chatter vibrations,…
- Who is the assignee on this patent?
- Schaeffler Technologies Ag
- What technology area does this patent fall under?
- Primary CPC classification F16D48/06. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 13 2016 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).