Brake System Mounting Assembly With Elastic Bushing for NVH Isolation
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Solution Overview
Problem
Existing vehicle brake system components, particularly brake boosters, generate noise and vibration during operation, which are costly to mitigate using conventional absorber means.
Innovation Solution
A mounting assembly incorporating an elastic bushing with radial collars and a rigid bushing to attenuate noise and vibration, utilizing a bolt and nut configuration that allows for cost-effective installation and compact design, with the elastic bushing providing dampening and the rigid bushing enhancing attenuation characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional absorber means are installed around brake system components, then noise and vibration attenuation is improved, but material cost and labor cost increase
Solution Approach 1:
The patent combines the mounting function and the noise/vibration attenuation function into a single integrated mounting assembly. The elastic bushing is incorporated directly into the mounting structure, eliminating the need for separate absorber means and reducing both material and labor costs while maintaining effective attenuation.
Solution Approach 2:
The elastic bushing acts as an intermediary element between the brake system component and the vehicle structure. It mediates the transmission of noise and vibration while being cost-effective compared to conventional absorber means, providing attenuation without requiring additional expensive materials or complex installation procedures.
2Object-affected harmful factors
If elastic bushing with radial collars is used in mounting assembly, then noise and vibration attenuation is improved, but device complexity increases
Solution Approach 1:
The elastic bushing is segmented into functional zones with radial collars at specific positions. These collars create distinct segments that provide targeted attenuation at different locations within the mounting assembly, improving overall noise and vibration reduction while maintaining a relatively simple overall structure.
Solution Approach 2:
The radial collars are strategically positioned at specific locations within the elastic bushing to provide localized attenuation where needed most. This local quality approach enhances noise and vibration attenuation effectiveness without requiring the entire bushing structure to be complex, maintaining simplicity while achieving superior performance.
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
Effectively reduces noise and vibration transfer to the passenger compartment while being cost-efficient and easy to install, maintaining comfort without the high material and labor costs associated with traditional solutions.
Implementation Method 1
an elastic bushing is provided having a bushing body which is arranged in the through hole of the mounting portion or in the through hole of the mounting element. Since the bushing is elastic, it provides attenuation or dampening as far as noise and vibration are concerned.
Data Source
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AI summary
The disclosure relates to a mounting assembly (32) for fixing a component of a vehicle brake system to a vehicle structure. The mounting assembly (32) comprises a mounting portion (40) of the vehicle structure having a through hole (42), a mounting element (44) of the vehicle brake system having a through hole (46), and a bolt (48) extending through both through holes (42, 46). Furthermore, a nut (52) engages the bolt (48) such that the mounting portion (40) is attached to the mounting element (44) via the bolt (48) and the nut (52). Additionally, an elastic bushing (54) is provided having a first bushing collar (58) which extends from a bushing body (56) in a radial direction. The first bushing collar (58) further extends on a first axial side of the corresponding mounting portion (40) or mounting element (44). Furthermore, a vehicle is presented which comprises such a mounting assembly (32) and a vehicle brake system. A component of the vehicle brake system is fixed to a structure of the vehicle via the mounting assembly (32).