Vehicle Front End Subframe Adjustment Housing
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Solution Overview
Problem
Existing motor vehicle front end connections to auxiliary frames do not allow for changes to the wheel suspension without modifying the front end structure, limiting adaptability and retrofitting capabilities.
Innovation Solution
A connection system with an adjustment device between the front end and subframe, featuring a subframe-side adjustment unit housed on a detachable subframe-mounted housing, which can shorten upon high force application, enabling wheel suspension changes without altering the front end structure, and integrating active stabilizer components within the housing for body stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the front end structure is modified to accommodate wheel suspension changes, then wheel suspension adaptability is improved, but front end structure complexity increases
Solution Approach 1:
The front end structure is segmented into a fixed front end portion and a movable subframe portion. The subframe can be independently adjusted relative to the front end, allowing wheel suspension changes without modifying the main front end structure. This segmentation enables adaptability while preserving structural simplicity.
Solution Approach 2:
The adjustment functionality is extracted from the front end structure and placed on the subframe side. The subframe includes integrated adjustment means that can modify wheel suspension parameters independently, removing the need to alter the front end structure for suspension adaptations.
2Device complexity
If the adjustment device is integrated directly into the front end, then structural compactness is improved, but retrofitting capability deteriorates
Solution Approach 1:
The adjustment device is designed with dynamic, adjustable components on the subframe that can be modified or replaced independently. This dynamic design allows the subframe to be retrofitted with different adjustment mechanisms for various wheel suspension configurations without changing the fixed front end structure.
Solution Approach 2:
The subframe is designed as a universal platform that can accommodate multiple wheel suspension types and configurations. The adjustment means on the subframe can be adapted for different suspension requirements, enabling a single front end design to support multiple retrofitting scenarios.
3Ease of manufacture
If the subframe-side adjustment unit is non-positively fastened to the housing, then ease of assembly is improved, but connection reliability deteriorates
Solution Approach 1:
The adjustment unit is segmented from the housing as a separate, independently fastenable component. This segmentation allows for simple, non-positive fastening methods (such as friction fits or snap connections) that enable easy assembly while maintaining sufficient connection reliability for the application requirements.
Data Source
Figure 1~2
AI summary
The invention relates to the attachment of a front end (10) of a motor vehicle to a sub-frame (22) of the motor vehicle, in which the front end (10) is attached to the sub-frame (22) by an adjusting device (20) arranged between front and (10) and sub-frame (22), as viewed in the motor vehicle longitudinal direction (FL), the adjusting device (20) comprising an adjusting unit (20a, 20b) on the front end side and the sub-frame side, and the adjusting device (20) being constructed in such a way that, in the event of an appropriately high accident-induced application of force, the adjusting device (20) can be shortened, as viewed in the motor vehicle longitudinal direction (FL). The invention is characterized in that the adjusting unit (20b) on the sub-frame side of the adjusting device (20) is arranged on a housing (24) mounted on the sub-frame (22).