Variable Differential Mount Using Magnetorheological Elastomer
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Solution Overview
Problem
Traditional differential mount systems in vehicles face a trade-off between riding comfort and handling stability due to the limited characteristics of rubber mounts, which cannot effectively adapt to varying driving conditions.
Innovation Solution
A variable differential mount apparatus utilizing Magnetorheological Elastomer (MRE) with a core wound coil and magnetic path formation, allowing for instant variation in stiffness by controlling magnetic flux, thereby improving both comfort and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rubber mount of higher stiffness is used, then handling stability is improved, but riding comfort deteriorates
Solution Approach 1:
The patent applies a magnetorheological elastomer (MRE) that can dynamically change its stiffness characteristics in real-time based on driving conditions. The MRE mount transitions from a static rubber mount to a dynamic system where stiffness can be adjusted instantaneously through magnetic field application, allowing the system to optimize between handling stability and riding comfort according to actual operating conditions.
Solution Approach 2:
The patent changes the physical parameter of the mount material from conventional rubber with fixed stiffness to magnetorheological elastomer whose stiffness parameter can be varied by applying magnetic fields. This allows the stiffness characteristic to be changed on-demand, enabling the system to achieve both high handling stability when needed and comfortable ride quality when conditions permit.
2Stability of the object's composition
If a rubber mount of higher stiffness is used, then handling stability is improved, but riding comfort deteriorates
Solution Approach 1:
The patent applies a magnetorheological elastomer (MRE) that can dynamically change its stiffness characteristics in real-time based on driving conditions. The MRE mount transitions from a static rubber mount to a dynamic system where stiffness can be adjusted instantaneously through magnetic field application, allowing the system to optimize between handling stability and riding comfort according to actual operating conditions.
Solution Approach 2:
The patent changes the physical parameter of the mount material from conventional rubber with fixed stiffness to magnetorheological elastomer whose stiffness parameter can be varied by applying magnetic fields. This allows the stiffness characteristic to be changed on-demand, enabling the system to achieve both high handling stability when needed and comfortable ride quality when conditions permit.
3Device complexity
If a traditional rubber mount is used, then the structure is simple, but adaptability to varying driving conditions deteriorates
Solution Approach 1:
The patent changes the physical parameter of the mount material from conventional rubber with fixed stiffness to magnetorheological elastomer whose stiffness parameter can be varied by applying magnetic fields. This allows the stiffness characteristic to be changed on-demand, enabling the system to achieve both high handling stability when needed and comfortable ride quality when conditions permit.
Solution Approach 2:
The patent replaces the purely mechanical rubber mount system with a hybrid system that incorporates magnetic field control. The MRE material allows magnetic fields to directly influence the mechanical properties of the mount, substituting part of the mechanical adjustment mechanism with a magnetic control mechanism that enables rapid adaptation to different driving conditions.
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
The MRE-based system dynamically adjusts stiffness in response to driving conditions, enhancing handling stability during specific maneuvers while maintaining riding comfort, thus overcoming the limitations of traditional rubber mounts.
Implementation Method 1
a variable differential mount apparatus using a Magnetorheological Elastomer (MRE)
Implementation Method 2
a core having a plurality of arms disposed thereon; a coil wound on the plurality of arms, respectively
Data Source
AI summary
Disclosed is a variable differential mount apparatus using a Magnetorheological Elastomer (MRE). The apparatus includes a core, a coil, a plurality of MRE supports, and a magnetic path formation member. The core has a plurality of arms disposed thereon. The coil is wound on the plurality of arms, respectively. The plurality of MRE supports are disposed to face the plurality of arms, respectively. The magnetic path formation member is disposed outside the plurality of MRE supports. More specifically, a current is applied to coil to vary the degree of stiffness of the variable differential mount based on a particular driving condition to allow for increased handling and comfort.