EV Charging Control Module Intrusion Detection and Data Protection
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Solution Overview
Problem
The electric vehicle (EV) power transfer system faces security vulnerabilities as payment information stored in the charging control module (CCM) can be easily compromised, leading to external intrusion and leakage of confidential data during the charging process.
Innovation Solution
A method and apparatus that monitor the storage device for abnormalities, such as changes in insulation resistance and real-time clock (RTC) information, to detect potential physical intrusion or tampering, and transmit warning messages to prevent unauthorized access and data leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If payment information is stored in the charging control module for automatic payment, then convenience of payment is improved, but security vulnerability to external intrusion increases
Solution Approach 1:
The patent applies preliminary action by detecting abnormalities in the storage device before confidential information can be compromised. The system continuously monitors the storage device's status and detects intrusion attempts or failures in advance, allowing preventive measures to be taken before payment information is leaked or stolen.
Solution Approach 2:
The patent implements feedback by establishing a closed-loop monitoring system that continuously checks the storage device's integrity. When an abnormality is detected, the system provides feedback through warning messages to the user and can automatically terminate charging operations, creating a responsive security mechanism that adapts to threats in real-time.
2Productivity
If the storage device is made accessible for charging operations, then power transfer functionality is improved, but risk of physical intrusion increases
Solution Approach 1:
The patent introduces an intermediary monitoring mechanism that acts as a security layer between the storage device and potential intruders. This intermediary system continuously checks the storage device's integrity and can detect physical tampering attempts, thereby protecting the power transfer system without interfering with its normal operation.
Solution Approach 2:
The patent replaces physical security measures with electronic/digital monitoring mechanisms. Instead of relying solely on physical protection of the storage device, the system uses electronic detection methods to monitor insulation resistance, detect abnormal currents, and identify intrusion attempts, providing more sophisticated and responsive security.
3Reliability
If monitoring mechanisms are added to detect intrusion, then security detection capability is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by designing a monitoring system that performs multiple security functions using a unified approach. The same monitoring mechanism detects various types of abnormalities including physical intrusion, storage device failures, and communication interceptors, eliminating the need for separate detection systems for each threat type and thereby reducing overall system complexity.
Data Source
AI summary
A method for protecting confidential information in an EV power transfer system includes determining whether there is an abnormality in a storage device in which confidential information for transferring electric power from a charging station to the EV is stored. The method further includes transmitting a message warning a risk of leakage of the confidential information when it is determined that there is the abnormality in the storage device. An apparatus for protecting confidential information in an EV power transfer system includes a processor and a memory storing instructions that cause the processor to perform the method.