Automobile Front Chassis Impact Absorber Set Plate
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Solution Overview
Problem
Existing front chassis structures for automobiles are cumbersome to manufacture and require skilled welding techniques, leading to inefficiencies in protecting the cabin from various impacts, especially when the impact force is not directly absorbed by the crash can.
Innovation Solution
A front chassis structure featuring an impact absorber supported by a set plate connected to a pillar member with a horizontal cross-section bulging rearward, a projecting member that presses the front side member inward when a collision occurs, and a connection member attached to the vehicle body, allowing for effective absorption and distribution of impact forces without the need for multiple set plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple set plates and joining portions are used to protect the cabin from various impacts, then the protection effectiveness is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent combines the functions of multiple set plates into a single integrated set plate structure. The first set plate supports the crash can while the second set plate covers the projecting member, and these are connected through the front side member to form a unified structure that protects the cabin from various impacts without requiring separate joining operations for multiple independent plates.
Solution Approach 2:
The set plate structure is designed to perform multiple functions: the first set plate serves as a support for the crash can, the second set plate acts as a cover for the projecting member, and together they form a protective barrier for the cabin. This multi-functional design eliminates the need for separate components for each function.
2Reliability
If multiple set plates and joining portions are used to protect the cabin from various impacts, then the protection effectiveness is improved, but the welding requirements increase
Solution Approach 1:
By integrating the support plate and cover plate into a unified set plate structure, the patent reduces the number of welding joints required. The single integrated structure eliminates the need for multiple separate welding operations that would be necessary if independent plates were used, thereby reducing the skill level required for welding operations.
3Strength
If the pillar portion has a horizontal cross-section bulging rearward, then the rigidity is improved, but the manufacturing complexity increases
Solution Approach 1:
The pillar portion features a localized geometric variation with a horizontal cross-section that bulges rearward, creating a specific region of enhanced rigidity where it is most needed for structural support. This local quality enhancement provides high rigidity without requiring the entire pillar structure to be complex.
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 structure effectively protects the cabin from various impacts by absorbing and distributing impact forces, reducing the complexity of manufacturing and the need for skilled welding, while ensuring the pillar member remains rigid and the crash can is compressively deformed.
Implementation Method 1
the crash can is compressively deformed to absorb an impact force acting on the automobile
Implementation Method 2
the pillar portion has a horizontal cross-section bulging rearward from the left and right attachment plate portions
Implementation Method 3
the projecting member presses the front side member inward in the vehicle width direction when there is a moment around the connection member
Data Source
AI summary
The present application discloses front chassis structure including set plate to which impact absorber is connected. Front chassis structure includes: pillar member having inner support plate portion for supporting impact absorber, outer support plate portion for supporting impact absorber in cooperation with inner support portion, and pillar portion having horizontal cross-section bulging rearward from inner and outer support plate portions; connection member for connecting pillar portion to vehicle body; front side member extending rearward from pillar member; and projecting member projecting outward from pillar member. Set plate is mounted on the outer and inner support plate portions. Projecting member includes front end covered by outer support plate portion. Projecting member is connected to front side member so that projecting member presses front side member inward under moment around connection member, moment being generated at collision of automobile.