Vehicle Bearing Assembly for Rotational Force Cancellation
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Solution Overview
Problem
Existing bearing assemblies for motor vehicle units introduce forces from rotational movement into structural components, causing oscillations and poor acoustics characteristics due to unbalanced force distribution.
Innovation Solution
A bearing assembly with symmetrically designed first bearings and optional second bearings, where lines integrated as part of the assembly, cancel out rotational forces by matching stiffness with the unit's center of gravity, minimizing acoustic impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bearing assemblies fix lines to structural components using additional fixing apparatus, then lines are securely fixed, but the number of force introduction regions increases causing more oscillations
Solution Approach 1:
The patent combines the line fixation function with the bearing assembly by integrating fixing elements directly into the bearing structure. The bearing assembly simultaneously supports the unit and secures the lines, eliminating the need for separate fixing apparatus and reducing the number of force introduction regions into the structural component.
Solution Approach 2:
The bearing assembly is designed to perform multiple functions: supporting the unit, fixing the lines, and minimizing structural oscillations. By making the bearing assembly multi-functional, the patent eliminates the need for additional dedicated fixing apparatus while maintaining secure line fixation.
2Stability of the object's composition
If bearing stiffness is increased to securely support the unit, then support stability improves, but rotational forces are more strongly transmitted causing worse acoustics characteristics
Solution Approach 1:
The patent optimizes the bearing stiffness parameters to achieve a balance between support stability and force transmission. By carefully selecting and adjusting the stiffness parameters of the bearings, the system maintains stable unit support while reducing the transmission of rotational forces to the structural component, thereby improving acoustic characteristics.
3Reliability
If multiple separate fixing apparatus are used for lines, then line fixation is secure, but device complexity increases
Solution Approach 1:
The patent merges the line fixation function into the bearing assembly by integrating fixing elements directly into the bearing structure. This consolidation eliminates the need for multiple separate fixing apparatus, reducing device complexity while maintaining secure line fixation through the integrated design.
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 bearing assembly securely supports units and fluid lines while optimizing acoustics by canceling out rotational forces, reducing noise and enhancing structural component stability.
Implementation Method 1
the first bearings each have a bearing stiffness that forces which are caused by rotation of the unit and which are introduced into the structural component of the vehicle by way of the first bearings cancel one another out
Implementation Method 2
forces which are caused by rotational movement of the unit are introduced into the structural component of the motor vehicle by way of the bearing assemblies or the fixing apparatuses. These forces cause oscillations in the structural component
Data Source
AI summary
A bearing assembly for supporting a unit of a motor vehicle includes at least two first bearings, each of which has a line and an attachment element. Each of the lines is attached to a line attachment point on the unit. The lines are fixed to a structural component of the motor vehicle by means of the attachment elements, and each of the first bearings has a respective bearing rigidity such that forces produced by the rotation of the unit and introduced into the structural component of the vehicle via the first bearings cancel each other out.