Vehicle Drive Unit Mount for Horizontal Power Control Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle drive apparatuses face challenges in integrating a power control unit without considering the posture of internal components, particularly in configurations where the power control unit is mounted on an inclined outer peripheral wall of the case housing a rotary electric machine.
Innovation Solution
A vehicle drive apparatus is designed with a mount that includes a bracket fixed to the vehicle body, a mount member fixed to the case, and an elastic member between the bracket and mount member, allowing the power control unit to be integrated via a horizontal mounting surface on the mount member, which supports the power control unit and case without considering the internal component posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power control unit is mounted on the inclined outer peripheral wall of the case, then the power control unit can be integrated with the case, but the mounting becomes complex and requires consideration of internal component posture
Solution Approach 1:
A mount member is introduced as an intermediary component between the case and the power control unit. The mount member includes a horizontal mounting surface that simplifies the attachment process, eliminating the need to directly mount on the inclined case wall while maintaining integration. This mediator resolves the contradiction by providing a simplified interface that doesn't require complex positioning considerations.
2Adaptability or versatility
If the power control unit is mounted on the inclined outer peripheral wall, then integration is achieved, but the height of the assembly increases
Solution Approach 1:
The mount member extends in the vertical dimension to provide a horizontal mounting surface above the case. By positioning the power control unit on this elevated horizontal surface rather than on the inclined side wall, the overall assembly height is optimized. The horizontal surface is positioned at an optimal height that balances integration requirements with compact vertical dimensions.
3Adaptability or versatility
If the power control unit is mounted on the inclined wall, then integration is possible, but interference with peripheral components occurs
Solution Approach 1:
The mount member provides a localized horizontal mounting surface with specific spatial characteristics that differ from the inclined case wall. This localized platform positions the power control unit in a specific zone that avoids interference with peripheral components while maintaining integration with the case. The local quality of the mounting surface enables optimal positioning independent of the case's inclined geometry.
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
This configuration enables the power control unit to be mounted efficiently, suppressing height and part count while reducing power plant resonance frequency, expanding the operational range of the rotating electric machine, and minimizing interference with peripheral components.
Implementation Method 1
an elastic member provided between the bracket and the mount member
Implementation Method 2
reducing power plant resonance frequency
Data Source
AI summary
A vehicle drive apparatus includes: a case accommodating a rotating electric machine; a mount supporting the case to a vehicle body; and a power control unit controlling the rotary electric machine. Further, the mount includes a bracket which is fixed to the vehicle body, a mount member which is fixed to the case, and an elastic member provided between the bracket and the mount member, the power control unit is fixed to the mount member, the mount member has a horizontal surface on a top thereof as a mounting surface on which the power control unit is attached, and the power control unit and the case are integrated via the mount member.