Overlapped Communication Device and ECU Mounting for Straddled Vehicle Theft Prevention
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Solution Overview
Problem
Existing straddled vehicles face challenges in achieving compactness and enhanced theft prevention for communication devices while maintaining vehicle stability during travel.
Innovation Solution
The design incorporates a communication device and engine control unit positioned to overlap each other in the vehicle width direction, with a resin holder covering the communication device and a support member, and the engine control unit disposed between the communication device and the support member, enhancing theft prevention and stability. The holder is fixed inside the exterior cover to secure the communication device, and the engine control unit is positioned closer to the vehicle's center, ensuring compactness and improved theft resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the communication device and engine control unit are disposed separately in the exterior cover, then the vehicle width increases, but if they are overlapped in the vehicle width direction, then compactness is improved but theft prevention performance may be compromised
Solution Approach 1:
The communication device and engine control unit are disposed in an overlapped configuration in the vehicle width direction, with the communication device positioned between the exterior cover and support member, and the engine control unit positioned between the communication device and support member. This nesting arrangement reduces the vehicle width while maintaining security through the holder structure that covers the communication device.
Solution Approach 2:
The patent transitions from a side-by-side arrangement to an overlapped arrangement in the vehicle width direction, effectively utilizing the vertical dimension (vehicle up-and-down direction) to accommodate both devices. This dimensional change achieves compactness while the holder provides theft prevention coverage.
2Device complexity
If the communication device is mounted on the engine control unit, then device complexity is reduced, but theft prevention performance deteriorates due to exposed connectors
Solution Approach 1:
The patent separates the communication device and engine control unit into distinct components rather than integrating them, allowing each to be independently secured. The holder specifically covers the communication device and its connectors, providing targeted theft prevention while maintaining manageable device complexity.
Data Source
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AI summary
A straddled vehicle (100) includes an exterior cover (21L, 21R) covering a head pipe (11) from one lateral side, a support member (30), a communication device (9), a holder (32), and an engine control unit (10). The support member (30), made of resin, is disposed inside the exterior cover (21L, 21R) and is fixed to a vehicle body frame (2). The communication device (9) is disposed between the exterior cover (21L, 21R) and the support member (30) and is communicable with a portable communication terminal (28). The holder (32), made of resin, includes an opening facing an inner side in a vehicle width direction. The holder (32) is fixed to the support member (30) inside the exterior cover (21L, 21R) so as to cover surroundings of the communication device (9). The holder (32) holds the communication device (9). The engine control unit (10) is disposed between the communication device (9) and the support member (30). The communication device (9) and the engine control unit (10) are each smaller in a dimension corresponding to the vehicle width direction than in each of dimensions corresponding to a vehicle back-and-forth direction and a vehicle up-and-down direction. The communication device (9) overlaps the engine control unit (10) as seen in a vehicle side view.