EV Center Tunnel Layout for Battery Device Integration
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Solution Overview
Problem
Existing electric vehicles with batteries arranged below the floor lack efficient arrangements for battery-related devices, leading to potential improvements in power distribution and vehicle design.
Innovation Solution
The electric vehicle incorporates a battery located between the front and rear wheels, with integrated electromechanical units forward and rearward of the battery, and battery-related devices housed within a center tunnel, optimizing the layout for reduced weight, power loss, and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If battery-related devices are arranged outside the center tunnel, then ease of access and maintenance is improved, but vehicle weight increases and power loss increases
Solution Approach 1:
The patent relocates battery-related devices from traditional lateral positions (outside the center tunnel) to the vertical space within the center tunnel, utilizing the third dimension (height/vertical space) to resolve the contradiction between accessibility and energy efficiency
2Ease of repair
If battery-related devices are arranged outside the center tunnel, then ease of maintenance is improved, but vehicle weight increases
Solution Approach 1:
The patent merges the arrangement of battery-related devices with the existing center tunnel structure, combining multiple functional elements (battery, charging device, power distribution device) into a single integrated spatial location, thereby reducing overall vehicle weight while maintaining maintainability
3Shape
If battery is arranged below the floor, then vehicle appearance is improved, but arrangement of battery-related devices becomes complex
Solution Approach 1:
The patent segments the battery-related devices into distinct functional units (battery, charging device, power distribution device) and assigns each to specific locations within the center tunnel, simplifying the overall arrangement complexity while maintaining the low-profile vehicle appearance
Data Source
AI summary
An electric vehicle includes a first-row seat and a second-row seat that are arranged on a floor. The second-row seat is located rearward of the first-row seat. In the electric vehicle, the first-row seat includes two seats that are laterally arranged side by side. In the electric vehicle, a center tunnel is arranged between the two seats. The center tunnel is located below the floor and above the battery. A vehicle on-board charger, a battery ECU, and a junction box, which are battery-related devices, are located inside the center tunnel.