Method and device for indicating wear of a brake pad in a disk brake with an electric motor actuator

US9714687B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9714687-B2
Application numberUS-16132507-A
CountryUS
Kind codeB2
Filing dateJan 18, 2007
Priority dateJan 18, 2006
Publication dateJul 25, 2017
Grant dateJul 25, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method and device are provided for indicating wear of at least one brake pad in a disc brake having an electric motor actuator. The method adds up wear adjustment travel paths of the electric motor actuator and/or of an adjustment motor, and indicates the sum of the wear adjustment paths so obtained as the wear of the brake pad or as a residual brake pad service life.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for indicating wear or residual brake pad thickness of at least one brake pad in a disc brake having an electric motor actuator for performing braking of the disc brake, the method comprising the acts of: determining wear adjustment travels of the electric motor actuator through position of the electric motor actuator; adding the wear adjustment travels of the electric motor actuator; indicating the wear or residual brake pad thickness of the at least one brake pad based on a sum of the wear adjustment travels, wherein determining the wear adjustment travel further comprises the acts of: registering a first position prior to a closing movement of the brake pad; registering a second position after a lifting of the brake pad; and comparing the first position with the second position, wherein the lift of the brake pad occurs over a constant travel, to determine the wear adjustment travel. 2. The method according to claim 1 , wherein the wear adjustment travel is determined at predefined intervals as a function of at least one of time and an operating parameter of the disc brake.

Assignees

Inventors

Classifications

  • Position, angle or speed · CPC title

  • using motors · CPC title

  • indicating different degrees of lining wear · CPC title

  • F16D66/025Primary

    sensing the position of parts of the brake system other than the braking members, e.g. limit switches mounted on primary cylinders · CPC title

  • converting rotation to linear movement or vice versa · CPC title

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Frequently asked questions

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What does patent US9714687B2 cover?
A method and device are provided for indicating wear of at least one brake pad in a disc brake having an electric motor actuator. The method adds up wear adjustment travel paths of the electric motor actuator and/or of an adjustment motor, and indicates the sum of the wear adjustment paths so obtained as the wear of the brake pad or as a residual brake pad service life.
Who is the assignee on this patent?
Linke Tobias, Stoehr Markus, Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh
What technology area does this patent fall under?
Primary CPC classification F16D66/025. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Jul 25 2017 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).