Electric Motorcycle Approach Notification Control Unit Mounting
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Solution Overview
Problem
Electric motorcycles produce a weak driving sound, making it difficult for pedestrians to recognize their approach, and existing vehicle approach notification systems face challenges in adapting to the space constraints and system changes in motorcycles.
Innovation Solution
A vehicle approach notification apparatus for electric motorcycles that includes a control unit for managing notification sounds, positioned forwardly in an accommodating box below the seat, with a low voltage battery and cover plate configuration that allows for easy access and maintenance, optimizing space utilization and system adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the control apparatus is disposed in a fixed location in four-wheeled cars, then the system is stable, but the system cannot adapt to system changes or specification changes in motorcycles
Solution Approach 1:
The control apparatus is divided into a control unit and a separate mounting structure. The mounting structure includes a mounting plate that can be attached to different locations on the motorcycle body, allowing the system to be segmented and reconfigured for different applications without redesigning the entire control apparatus.
Solution Approach 2:
The mounting structure is designed to be dynamically reconfigurable, allowing the control apparatus to be moved between different mounting locations on the motorcycle. This dynamic attachment system enables the same control apparatus to adapt to different system configurations and specification changes.
2Quantity of substance
If the control apparatus is made large to ensure adequate space for operations, then the control functionality is sufficient, but the available space in motorcycles is insufficient
Solution Approach 1:
The control apparatus is designed with a nested structure where the control unit is housed within a compact mounting assembly. This nesting allows the control functionality to be maintained while reducing the overall footprint to fit within the limited space available on motorcycles.
Solution Approach 2:
The mounting structure utilizes vertical space and three-dimensional positioning to accommodate the control apparatus. By mounting the control unit on the underside of the motorcycle body or in vertically-oriented spaces, the design exploits additional dimensions rather than only horizontal plane space.
3Area of stationary object
If the control apparatus is made compact to fit limited space, then space utilization is improved, but access for maintenance and system changes becomes difficult
Solution Approach 1:
The control unit is designed to be extractable from the mounting structure as a separate component. This extraction capability allows maintenance personnel to remove the control unit for servicing or replacement without disassembling the entire mounting structure, maintaining ease of repair despite compact packaging.
Solution Approach 2:
The mounting structure includes pre-configured access points and removable panels that are designed in advance to provide maintenance access. These preliminary access features are built into the compact structure, allowing future maintenance operations to be performed without requiring additional disassembly work.
Data Source
AI summary
A vehicle approach notification apparatus for an electric motorcycle, which outputs notification sound for notifying a walker or the like of approach of a vehicle from a speaker attached to a vehicle body includes a control unit for controlling the notification sound. The control unit is attached to a position, displaced rather forwardly of the vehicle body, of a bottom face in an accommodating box disposed below a seat of the electric motorcycle. A cover plate, which configures part of the bottom of the accommodating box, is removably disposed above the control unit. A low voltage battery as a power supply for auxiliaries is accommodated on the bottom of the accommodating box displaced rather rearwardly of the vehicle body from the control unit. The cover plate is disposed so as to cover an upper portion of the low voltage battery in flush with an upper face of the control unit.