ECM Mounting System Vibration Isolation
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Solution Overview
Problem
Vehicle components, such as electronic control modules (ECMs), experience vibrations during vehicle operation, leading to potential displacement and the need for secure fastening to prevent movement and vibration. Existing mounting systems may cause excessive vibrations if not properly isolated, especially when attached to vibration sources like engines.
Innovation Solution
A mounting system comprising a first and second mounting member coupled by a third mounting member with isolation devices and fastening members, where the third mounting member includes a base portion and leg portions to securely attach the ECM, with isolation devices strategically placed to isolate specific frequency regions of vibration, reducing vibration transmission to the ECM.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If vehicle components are securely fastened to the vehicle frame to prevent movement, then stability is improved, but excessive vibrations are transmitted to the components
Solution Approach 1:
The patent introduces a mounting system with isolation devices as an intermediary between the vehicle component and the mounting structure. These isolation devices act as mediators that allow secure mechanical attachment while filtering out harmful vibrations, thus resolving the contradiction between stability and vibration transmission.
Solution Approach 2:
The mounting system converts the harmful vibration energy into beneficial damping through the isolation devices. The isolation devices are designed to absorb and dissipate vibration energy, transforming the harmful vibrational forces into heat energy through material damping, thereby protecting the component while maintaining secure mounting.
2Strength
If vehicle components are attached to a vibration source like an engine, then secure attachment is achieved, but the components must withstand high vibration levels
Solution Approach 1:
The mounting system introduces isolation devices as intermediaries between the component and the engine mounting points. These devices provide the necessary mechanical strength for secure attachment while simultaneously protecting the component from damaging vibrations through their damping characteristics.
Solution Approach 2:
The isolation devices utilize composite material structures combining rigid elements for structural strength with damping materials for vibration absorption. This composite approach allows the mounting system to simultaneously achieve high attachment strength and vibration isolation, ensuring component reliability under engine vibrations.
3Ease of manufacture
If a simple mounting structure is used to reduce complexity, then ease of manufacture is improved, but vibration isolation performance deteriorates
Solution Approach 1:
The mounting system is segmented into distinct functional components: rigid mounting elements for structural support and isolation devices for vibration damping. This segmentation allows each component to be optimized for its specific function while maintaining overall manufacturability, as each segment can be manufactured independently using standard processes.
Solution Approach 2:
The isolation devices utilize parameter changes in material properties and geometric configurations to achieve vibration isolation. By adjusting parameters such as material damping coefficients, element geometry, and mounting configuration, the system achieves effective vibration isolation while maintaining ease of manufacture through standardized design parameters.
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 vibration transmission to the ECM by isolating both mid and high-frequency regions, enhancing the durability and stability of the mounting system and preventing premature failure, while maintaining secure attachment to the engine.
Implementation Method 1
a plurality of first isolation devices disposed vertically between the first and second leg portions of the third mounting member and the first and second mounting members respectively, to isolate a first frequency region of vibration produced by the engine
Data Source
AI summary
A mounting system for an electronic control module is disclosed. The mounting system includes a first mounting member, a second mounting member, and a third mounting member coupled to the first mounting member and the second mounting member by a plurality of first isolation devices and by a plurality of first fastening members. The third mounting member includes a base portion having a first end and a second end. The base portion is coupled to the ECM by at least one second isolation device and by at least one second fastening member. The third mounting member includes a first leg portion coupled to the first mounting member. The third mounting member further includes a second leg portion coupled to the second mounting member.