Motorcycle Electronic Authentication Ignition Knob Control
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Solution Overview
Problem
Conventional electronic authentication systems for motorcycles are inconvenient due to separate unlock switches for the steering bar, seat, and accommodation portions, and they lack desirable antitheft features, with battery voltage issues causing system failure and potential unauthorized access.
Innovation Solution
An electronic authentication system with a portable transmitter-receiver and an ignition switch unit connected to a control unit, allowing the ignition knob to unlock the steering bar, accommodation box, and fuel lid after authentication, and an emergency unlocking device using a mechanical key to bypass authentication for emergency access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate unlock switches are provided for steering bar, seat, and accommodation portions, then each component can be unlocked independently, but the number of switches increases and operation becomes inconvenient
Solution Approach 1:
The patent combines multiple unlock functions (steering bar, seat, accommodation box, fuel lid) into a single ignition switch unit. After electronic authentication, one ignition switch operation sequentially controls all unlocking actions, eliminating the need for multiple separate switches and simplifying the user interface.
Solution Approach 2:
The ignition switch unit is designed to perform multiple functions: authentication triggering, sequential unlocking of multiple components, and engine start control. This multi-functional design consolidates what would otherwise require separate controls into a single universal interface.
2Ease of operation
If the seat is unconditionally unlocked after authentication, then access to accommodation is easy, but the user may unconsciously leave the seat unlocked creating security risks
Solution Approach 1:
The seat locking state is dynamically controlled based on the ignition switch position. The seat remains locked during authentication, unlocks only when the ignition is turned to the ON position, and can be relocked by turning the ignition OFF. This dynamic control ensures the user consciously decides when to access the seat.
Solution Approach 2:
The system requires the user to actively turn the ignition switch to ON as a preliminary action before the seat unlocks. This preliminary authentication step ensures conscious user intent before granting access to the accommodation space.
3Reliability
If the accommodation box lid and fuel lid require separate unlock operations, then security is maintained, but operability and handlability during oil supply deteriorate
Solution Approach 1:
The ignition switch unit controls unlocking of both the accommodation box lid and fuel lid through a single operational sequence. After authentication, turning the ignition ON simultaneously or sequentially unlocks both lids, eliminating the need for separate unlock operations while maintaining security through authenticated control.
4Reliability
If electronic authentication is required for all operations, then security is enhanced, but the system becomes inaccessible when battery voltage is insufficient
Solution Approach 1:
The unlocking control is segmented into two independent paths: one through electronic authentication (normal operation) and another through emergency unlock mechanism (voltage shortage operation). This segmentation allows the system to maintain functionality under different conditions while preserving security through the authenticated path.
Solution Approach 2:
The emergency unlock mechanism serves as an intermediary solution when the primary electronic authentication path is blocked by voltage shortage. It provides alternative access to essential functions (steering bar, seat) without requiring battery power, ensuring system adaptability while maintaining security through mechanical authorization.
Data Source
AI summary
Aimed at providing an electronic authentication system for a motorcycle excellent in the handlability and operability, operations of turning an ignition knob, and of opening a accommodation lid and a fuel lid, disposed in the front portion of the vehicle, are permitted, when agreement of ID information was judged. The steering bar was made unlockable by operating the ignition knob after agreement of the ID information was judged, and the seat was made unlockable by further operating the ignition knob.