Vehicle Front Assembly Carrier Load Path Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle body arrangements for vehicle front parts are inefficient in terms of material and assembly costs, and can compromise installation space optimization due to the use of additional struts for increased rigidity, which can negatively impact crash force transmission.
Innovation Solution
Incorporating an assembly carrier into the load path, which can serve as a chassis subframe and be connected to longitudinal carriers, allowing for reduced material and assembly costs while optimizing installation space, and enhancing force transmission during crashes by using multiple load path planes and additional reinforcement elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If additional struts (longitudinal struts or diagonal struts) are arranged in the intermediate space of the longitudinal carriers to increase the rigidity of the vehicle front part, then the rigidity is improved, but the material cost and assembly cost increase, and the installation space is reduced
Solution Approach 1:
The patent combines the function of the crossmember with the assembly carrier for the motor vehicle assembly. The crossmember serves dual purposes: it connects the longitudinal carriers structurally and acts as the assembly carrier for mounting the motor vehicle assembly. This merging eliminates the need for separate assembly carriers and reduces the number of components, thereby reducing material and assembly costs while maintaining rigidity.
Solution Approach 2:
The crossmember is designed to perform multiple functions simultaneously: it provides structural connection between longitudinal carriers, serves as an assembly carrier for the motor vehicle assembly, and contributes to the overall rigidity of the vehicle front part. This multi-functionality reduces the need for additional components like separate assembly carriers or struts, optimizing both cost and installation space.
2Strength
If additional struts are arranged in the intermediate space of the longitudinal carriers to increase the rigidity of the vehicle front part, then the rigidity is improved, but the installation space is reduced
Solution Approach 1:
The crossmember is merged with the assembly carrier function, eliminating the need for separate assembly carriers that would occupy additional space. The intermediate space between longitudinal carriers is utilized efficiently by the crossmember itself serving as the mounting platform, thus optimizing installation space while maintaining structural rigidity.
3Stability of the object's composition
If the rear transverse element is configured as a crossmember connected to longitudinal carriers, then the structural stability is improved, but the force transmission during crash is insufficient without additional reinforcement
Solution Approach 1:
The load path is pre-configured through the longitudinal carriers and crossmember assembly before a crash occurs. The longitudinal carriers are designed to guide crash forces along predetermined paths into the vehicle body structure. The crossmember's connection to these carriers establishes the force transmission route in advance, ensuring efficient crash force distribution without requiring additional reinforcement elements.
Solution Approach 2:
The vehicle front part is segmented into distinct load-bearing components: longitudinal carriers that transmit forces longitudinally, and a crossmember that provides transverse support. This segmentation allows each component to be optimized for its specific function - the longitudinal carriers for force transmission and the crossmember for structural stability - achieving both goals simultaneously.
Data Source
AI summary
A vehicle body arrangement for a vehicle front part (6) has at least a first load path plane (8, 10, 12). The vehicle front part (6) has at least two longitudinal carriers (22, 24) and at least two transverse elements (18, 20) that connect the longitudinal carriers (22, 24). At least the rear transverse element (20), as viewed in the driving direction, is configured as a crossmember, as viewed in the load direction. The rear transverse element (20) is adjoined by an assembly carrier (36) with a motor vehicle assembly (38). The motor vehicle assembly (38) has at least one assembly longitudinal carrier (40, 42).