Straddle Vehicle Battery Housing for Load Distribution
Solution Overview
Problem
Existing straddle type vehicles face operability issues due to the distribution of heavy loads in the vehicle fore-and-aft direction, which affects driving characteristics, as the battery and engine weights are not optimally balanced.
Innovation Solution
The battery housing part is positioned in front of the helmet housing box and above the engine and fuel spray device, concentrating the weight of the battery and engine in the vehicle fore-and-aft direction, allowing for improved load distribution and utilizing unused space for battery housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the battery is disposed in the rear of the helmet housing box, then the fuel tank capacity can be expanded, but the heavy loads are distributed in the vehicle fore-and-aft direction causing deterioration in driving characteristics
Solution Approach 1:
The patent applies dimensionality change by moving the battery from a rear horizontal position to a front vertical position above the fuel spray device. This spatial reconfiguration in the vertical dimension allows the battery to be positioned above the engine area rather than behind the helmet housing box, thereby concentrating heavy loads in the front portion of the vehicle while still accommodating fuel tank expansion needs.
2Ease of operation
If the battery housing part is positioned above the engine, then heavy loads are concentrated improving operability, but the space utilization and access for maintenance becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the under-seat space into distinct functional zones: the helmet housing box for storage, the battery housing part for the battery, and the fuel spray device area for engine fueling. This segmentation allows each component to be independently positioned and accessed, simplifying maintenance while achieving concentrated load distribution for improved operability.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A straddle type vehicle (100) includes a helmet housing box (20) having an opening (22) at a top surface thereof for putting in and out a helmet, an engine (40) disposed in front of the helmet housing box (20) and in a position below the helmet housing box (20), a fuel spray device (44) disposed above the engine (40), and a battery housing part (10) disposed in front of the helmet housing box (20) in the vehicle direction and in a position above the fuel spray device (44), in which a battery (12) is housed in the battery housing part (10).