Motorcycle Keyless Authentication With Intermittent Signal Control
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Solution Overview
Problem
Open-cabin vehicles face challenges in power consumption and convenience due to limited mounting space and lack of doors, which complicates authentication systems.
Innovation Solution
An authentication system for open-cabin vehicles that detects a rider's approach without requiring operations on the vehicle or portable terminal, using intermittent transmission signals with a narrow response range to reduce power consumption and prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous transmission signals are used for authentication, then authentication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements intermittent transmission of identification signals at predetermined intervals instead of continuous transmission. The control apparatus transmits identification signals periodically, and the portable terminal responds when detected, achieving authentication while reducing power consumption through periodic rather than continuous operation.
2Ease of operation
If wide response range is used for authentication, then convenience is improved, but unauthorized access risk increases
Solution Approach 1:
The patent implements a feedback mechanism where the control apparatus transmits identification signals and the portable terminal responds with authentication information. The control apparatus verifies the response and only activates the drive control unit when authentication is successful, providing controlled access based on verified feedback rather than wide unconditional response range.
3Reliability
If authentication requires operations on vehicle or portable terminal, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The patent implements an automatic authentication system where the control apparatus automatically transmits identification signals and the portable terminal automatically responds without requiring manual operations from the user. The system performs authentication autonomously based on the presence of the portable terminal, eliminating the need for manual activation operations while maintaining security.
Data Source
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AI summary
A drive activation control unit (17) in a control apparatus (10) of a motorcycle (100) controls a drive apparatus (30). An identification signal transmission unit (12) intermittently transmits an identification signal (ID) without any operation by an operator who carries a portable terminal (200). A response signal reception unit (13) receives a response signal (RE) transmitted from the portable terminal (200) in response to the identification signal (ID). In response to reception of the response signal (RE), a request signal transmission unit (14) makes a request of the portable terminal (200) for key information (KEY). The key-information signal reception unit (15) receives a key information signal including the key information (KEY). A drive-activation permission determination unit (16) determines whether or not to permit activation of a drive control unit based on the key information (KEY). When the drive-activation permission determination unit (16) permits activation of a drive control unit (11), the drive activation control unit (17) activates the drive control unit (11) without any operation by an operator who carries the portable terminal (200).