Power Unit Mount Extension Wall Load Transmission
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Solution Overview
Problem
Existing power unit mount structures fail to efficiently transmit loads produced by small overlap crashes in a vehicle widthwise direction to the vehicle frame structure, leading to inadequate load distribution during collisions.
Innovation Solution
A power unit mount structure featuring a mount member with a damper fixed to the suspension member, a bracket coupled to the damper, and extension walls that extend downward from the bracket, ensuring effective load transmission to the vehicle frame during small overlap crashes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional mount member is used without extension walls, then the structure is simple, but the load transmission efficiency in the vehicle widthwise direction during small overlap crashes is insufficient
Solution Approach 1:
The extension walls extend downward from the bracket in a direction perpendicular to the main mounting plane, creating a three-dimensional load transmission path. This dimensional addition allows the mount member to effectively transmit widthwise crash loads to the suspension member through the damper, resolving the load transmission inefficiency without requiring complete redesign of the mounting system
2Reliability
If the extension wall completely overlaps the damper in side view, then the load transmission path is optimized, but the manufacturing precision requirements increase
Solution Approach 1:
The extension wall is designed to overlap the damper only in the critical side view direction where load transmission is needed, while maintaining flexibility in other dimensions. This localized overlap approach optimizes the load transmission path through the damper without requiring high-precision positioning in all directions, thereby reducing overall manufacturing precision requirements
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 described mount structure efficiently transmits loads in the vehicle widthwise direction to the frame structure, enhancing the vehicle's ability to absorb and distribute crash forces, thereby improving safety and structural integrity during small overlap crashes.
Implementation Method 1
a damper (41) fixed to the suspension member (10)
Data Source
AI summary
A mount member is located between a front cross member and a power unit of a suspension member. The mount member includes a damper fixed to the front cross member of the suspension member and a bracket fixed to an upper end of the damper. The bracket couples the damper to the power unit. An extension wall extends downward from the bracket. The extension wall at least partially overlaps the damper in a side view.