Underfloor Battery Layout With Inclined Rear Footwell Electronics
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Solution Overview
Problem
Existing electric and hybrid vehicles face a challenge in optimizing interior space due to the volume occupied by electrical energy storage modules, particularly under the rear seats, which compromises passenger comfort.
Innovation Solution
The electrical energy storage unit is positioned under the vehicle floor with an inclined upper surface of the electronic components, conforming to the shape of the passenger's feet area, allowing for increased space and improved posture for rear seat passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electrical energy store is installed in the vehicle, then the vehicle can operate in electric or hybrid mode, but the available space for the energy store is limited by the floor structure
Solution Approach 1:
The patent transitions from installing the electrical energy store above the floor to below the floor, utilizing the previously underutilized space dimension. This dimensional change allows the energy store to be positioned in the space between the road wheels and the ground, significantly increasing the available volume without compromising the vehicle's upper structure or passenger compartment.
Solution Approach 2:
The floor structure is segmented into multiple sections to accommodate the electrical energy store. The floor is divided such that certain areas are removed or reconfigured to create space for the energy store, while maintaining structural integrity through strategic reinforcement and support elements.
2Volume of moving object
If the floor structure is modified to accommodate the electrical energy store, then more space is available, but the structural strength and rigidity may be compromised
Solution Approach 1:
The floor structure is designed with varying local properties - areas where the electrical energy store is installed have modified characteristics (removed or reconfigured sections), while other areas maintain full structural strength. This localized differentiation allows space optimization in specific regions without compromising the overall structural integrity of the vehicle floor.
3Volume of moving object
If the electrical energy store is positioned below the floor, then space utilization is improved, but access for maintenance and replacement becomes more difficult
Solution Approach 1:
The electrical energy store is designed as a separable, extractable unit that can be removed from below the floor structure. This extraction capability allows the energy store to be easily accessed, removed, replaced, or maintained without requiring complex disassembly of the entire floor structure, thus maintaining ease of operation despite the unconventional positioning.
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
One aspect of the invention relates to an electric or hybrid vehicle comprising an electrical energy store (5) installed below a floor (2) of the vehicle (1), the electrical energy store (5) comprising: a first assembly (6) of electrical energy storage modules arranged below a row of front seats (7) of the vehicle (1), a second assembly (8) of electrical energy storage modules arranged below a row of rear seats (9), and an electronic part (10) arranged between the first and second assemblies (6, 8) of electrical energy storage modules at the location intended for the feet (3) of passengers (4) seated on the row of rear seats (9), the electronic part (10) having an upper face (11) inclined so as to be arranged facing the floor (2), the floor (2) closely following the shape of the inclined upper face (11).