Motor Vehicle Trailer Charging Anti-Theft Battery Authentication
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Solution Overview
Problem
Existing systems for charging electric bicycles from motor vehicles lack effective anti-theft protection, as they can be easily circumvented by replacing the bicycle's battery with a low-cost alternative, rendering the anti-theft measures ineffective.
Innovation Solution
Implementing a method where the motor vehicle queries and verifies the identification data of the electric bicycle's battery via a communication channel, ensuring that only the authorized battery can be connected, and outputting an alarm signal if incorrect or no data is received, thereby preventing battery replacement or theft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a charge device is used to monitor operating parameters for anti-theft protection, then theft detection capability is improved, but the system can be easily circumvented by replacing the battery with a low-cost alternative
Solution Approach 1:
The system stores reference data (fingerprint, identification data) of the authorized battery in advance in the motor vehicle's control unit before the charging process begins. This preliminary storage of authentication data enables the system to verify the battery's identity during charging and detect unauthorized battery replacements, preventing theft circumvention attempts.
2Reliability
If identification data verification is implemented to prevent battery replacement, then anti-theft protection is improved, but the charging process complexity increases
Solution Approach 1:
The authentication function is merged with the existing charging control process. The control unit performs identification data verification during the normal charging operation, combining the anti-theft function with the charging function in a single integrated process. This avoids adding separate complex authentication hardware and procedures.
Solution Approach 2:
The battery contains its own identification data (fingerprint) that automatically serves as its authentication credential. The battery essentially authenticates itself by providing its stored identification data in response to the control unit's inquiry, eliminating the need for external authentication devices or complex verification protocols.
3Reliability
If continuous monitoring of battery identification data is performed during charging, then theft detection capability is improved, but energy consumption increases
Solution Approach 1:
The control unit performs identification data verification at periodic intervals during the charging process rather than continuously monitoring. The system inquires about the battery's identification data at predetermined time intervals, which maintains theft detection capability while significantly reducing energy consumption compared to continuous monitoring.
Data Source
AI summary
A method for charging an electric bicycle from the power supply of a motor vehicle. The motor vehicle is coupled via an electrical trailer connection and an electrical adapter to the battery of the electric bicycle. In order to provide anti-theft protection, the motor vehicle sends the battery a query signal relating to identification data of the battery via a communication channel. Subsequently, the motor vehicle listens in on the communication channel upon transmission of the identification data of the battery. For the case in which the motor vehicle receives incorrect identification data or no identification data from the battery, an alarm signal is output.