Motor Housing Casting With Integrated Attachments for EV Body Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for improvements in vehicle body assemblies, particularly for electric vehicles, to make them cheaper and easier to manufacture, as existing designs often require complex multi-piece cradle assemblies that increase component count and assembly complexity.
Innovation Solution
The integration of a motor housing casting as a cradle assembly and the use of front rails and cross members with integrated attachments simplify the construction by eliminating the need for a multi-piece cradle, with the motor housing casting and cross members serving as direct attachment points for vehicle components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a multi-piece cradle assembly is used to support vehicle components, then the structural support function is achieved, but the number of components increases and assembly complexity increases
Solution Approach 1:
The motor housing casting is merged with the cradle assembly function by integrating attachment features directly into the casting. This combines the motor mounting structure with the vehicle component support structure, eliminating the need for separate cradle pieces and reducing assembly complexity while maintaining structural support capability.
Solution Approach 2:
The motor housing casting serves multiple functions: it houses the electric motor, provides structural support, and includes integrated attachments for mounting various vehicle components (steering gear, control arms, sway bars). This multi-functionality eliminates the need for dedicated cradle assemblies, reducing component count while maintaining all necessary support functions.
2Adaptability or versatility
If a multi-piece cradle assembly is used to hold components, then all components can be supported, but the manufacturing cost increases
Solution Approach 1:
The cradle assembly function is merged into the motor housing casting process. By including attachment features as integral parts of the casting rather than separate components, the manufacturing process is simplified and material costs are reduced, while the integrated attachments maintain full component support capability.
Solution Approach 2:
The motor housing casting is designed to serve as both the motor enclosure and the component mounting structure. This universal design allows a single manufactured part to replace multiple specialized components, reducing overall manufacturing cost while maintaining the ability to support all necessary vehicle components.
3Strength
If separate cradle components are used, then structural support is provided, but the number of parts increases
Solution Approach 1:
Multiple separate cradle components are merged into a single integrated motor housing casting. The casting includes all necessary attachment features (steering gear attachments, control arm attachments, sway bar attachments) as integral parts, reducing the component count from multiple separate pieces to one unified structure that maintains full structural support capability.
Solution Approach 2:
The motor housing casting is designed as a universal support structure that replaces multiple specialized cradle components. By incorporating all attachment functions into the casting, the design reduces the quantity of parts needed while maintaining the structural support necessary for all vehicle components.
Data Source
AI summary
A vehicle body assembly includes a body in white structure that has a front portion and a pair of front rails that extend in spaced and parallel relationship with one another at the front portion. An electric motor that has a motor housing casting is coupled to the front rails of the body in white structure. The motor housing casting includes at least one attachment for connecting to vehicle components.