Motorcycle ECU Mounting Bridge for Cable Protection
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Solution Overview
Problem
The existing methods for mounting electrical components like ECU in motorcycles face challenges due to the large size of the components, difficulty in cabling, and increased costs associated with multiple clamps, which affect handling operationality and lead to potential cable damage.
Innovation Solution
A bridge is strategically positioned between the right and left pair of main frames, allowing the engine control unit to be mounted within its inner space, with a forward-extending engine suspension bracket and rear wheel suspension system, and wiring harness cabling along the main frame's inner wall, effectively utilizing space and reducing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ECU is mounted near the steering head pipe (front side), then the mounting position is secured, but cabling becomes difficult and cables may be damaged due to friction between the ECU and cable during driving
Solution Approach 1:
The patent relocates the ECU from the front side (near steering head pipe) to the rear side of the vehicle body, utilizing the rear frame area. This spatial relocation in another dimension resolves the contradiction by providing adequate clearance for cable routing while maintaining secure mounting, thus enabling easy cabling operations without friction damage risks.
2Reliability
If many clamps are used to restrict cabling position of cables, then cable routing is controlled, but cost increases
Solution Approach 1:
The patent integrates cable routing guidance directly into the frame structure itself, merging the structural support function with the cable routing function. This eliminates the need for separate clamps, achieving reliable cable positioning while reducing component count and manufacturing cost.
3Reliability
If the ECU is mounted in a position that prevents mutual interference with cables, then cable damage is avoided, but handling operationality is influenced
Solution Approach 1:
By relocating the ECU to the rear side of the vehicle body, the patent creates sufficient spatial separation between the ECU and cable routing paths. This dimensional relocation ensures cable protection from friction damage while maintaining excellent handling operationality, as the rear mounting position provides accessible service areas for maintenance operations.
4Ease of operation
If the ECU is mounted between right and left main frames in a manner operable from side of vehicle, then access is improved, but space utilization is not optimized
Solution Approach 1:
The patent utilizes the rear frame structure to serve multiple functions: structural support, ECU mounting platform, and cable routing guidance. This multi-functional use of the rear frame area optimizes space utilization while maintaining accessibility for service operations, as the rear mounting position remains easily accessible from the side of the vehicle.
Data Source
AI summary
In a motorcycle in which an electrical component including an engine control unit is mounted, a bridge bent to protrude upward is bridged between each of coupling portions in which a right and left pair of main frames and a right and left pair of body frames are coupled, and the engine control unit is disposed in an inner space of the bridge thereby to cover right and left sides of the engine control unit.