Self-Lubricating Brake Assembly for Vibration and Noise Reduction
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Solution Overview
Problem
Existing vehicle wheel brake systems generate significant vibrations and acoustic noises, particularly during braking and releasing, due to uncontrolled relative movements and contact forces between components, which existing solutions have been insufficient to reliably suppress.
Innovation Solution
A brake component assembly incorporating a self-lubricating material that is elastically deformable and capable of producing a lubricating film, reducing friction and vibrations by coating or integrating it into components such as clips or surfaces, eliminating the need for external lubricant deposits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional brake components are used with rigid contact surfaces, then structural stability is maintained, but vibrations and acoustic noises are generated during braking operations
Solution Approach 1:
The patent applies a self-lubricating material specifically to the contact surfaces between moving brake components, creating a localized region with different friction characteristics. This allows the majority of the brake assembly to maintain rigid structural stability while the specific contact interfaces exhibit reduced friction and vibration, resolving the contradiction between structural stability and noise reduction.
Solution Approach 2:
The self-lubricating material changes the friction parameter at the contact surfaces from high friction (rigid contact) to low friction (self-lubricating). This parameter change reduces the generation of vibrations and acoustic noises during braking operations while maintaining the overall structural integrity of the brake assembly.
2Object-affected harmful factors
If self-lubricating material is applied to contact surfaces, then friction and vibrations are reduced, but the material must remain stable under high contact forces and temperatures
Solution Approach 1:
The self-lubricating material is designed to automatically maintain its lubricating properties under high contact forces and temperatures without requiring external intervention. The material's elastic deformability allows it to adapt to varying operating conditions while continuously providing lubrication, ensuring both friction reduction and material stability throughout the brake's operational life.
Solution Approach 2:
The self-lubricating material functions as a composite solution combining lubricating properties with mechanical stability. This composite material structure enables the surface layer to provide low-friction lubrication while maintaining sufficient stability to withstand the high contact forces and temperatures encountered during brake operation.
3Object-affected harmful factors
If external lubricant deposits are used, then lubrication is provided, but additional components and maintenance are required
Solution Approach 1:
The self-lubricating material is integrated directly into the brake component structure, eliminating the need for separate lubricant reservoirs, delivery systems, or periodic maintenance. The material provides continuous self-lubrication as an inherent property, reducing device complexity while maintaining effective friction reduction throughout the brake's service life.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Significantly reduces vibrations and acoustic noises during both braking and releasing processes, maintaining effective lubrication over an extended operating life without external lubricant reservoirs, thereby enhancing the operating characteristics of vehicle wheel brakes.
Implementation Method 1
A self-lubricating material is provided that is configured to lubricate at least one pair of surfaces that contact one another and that are movable relative to one another
Implementation Method 2
The self-lubricating material is elastically deformable, e.g. by contact forces occurring between (or forces transmitted in between) the first component and second component
Data Source
AI summary
Disclosed is a brake component assembly for a vehicle wheel brake, comprising a first component and a second component, wherein the first and second component are movable relative to one another for engaging and releasing the vehicle wheel brake, wherein a self-lubricating material is provided that is configured to lubricate at least one pair of surfaces that contact one another and that are movable relative to one another when moving the first and second component relative to one another, wherein the self-lubricating material is elastically deformable.