NFC Battery Verification for Swappable Electric Vehicle Maintenance
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Solution Overview
Problem
The ECU in electric scooters is costly, complex, and requires additional power for verification, making maintenance difficult and increasing overall costs.
Innovation Solution
A battery-swappable electric vehicle system utilizing an NFC dynamic tag module for verification and data exchange between the vehicle and swappable battery, eliminating the need for an ECU and simplifying maintenance through a diagnostic system for data retrieval and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an ECU is used to verify and control the swappable battery, then the battery verification and control function is achieved, but the cost increases and the structure becomes complex
Solution Approach 1:
The patent extracts the verification and control functions from the complex ECU system and implements them separately using simple NFC tags for verification and a basic control circuit for power control. This separation eliminates the need for a complex ECU while maintaining the essential functions.
Solution Approach 2:
The patent replaces the expensive, complex ECU with inexpensive NFC tags that can be easily replaced. The NFC tags serve as disposable or easily replaceable verification elements, significantly reducing system cost and complexity while maintaining verification functionality.
2Reliability
If an ECU is used to verify the swappable battery, then the verification function is achieved, but maintenance becomes difficult
Solution Approach 1:
The verification function is extracted from the complex ECU and implemented using standalone NFC tags that can be independently accessed and replaced. This extraction makes maintenance straightforward as technicians can simply read or replace NFC tags without dealing with complex electronic control units.
Solution Approach 2:
The NFC tags are designed to be easily readable and replaceable by maintenance personnel using simple NFC readers, enabling self-service or minimal-trainig maintenance without requiring specialized ECU diagnostic equipment or expertise.
3Reliability
If the swappable battery is required to provide starting power for ECU verification, then verification can be performed, but an additional starting battery is needed increasing cost
Solution Approach 1:
The verification power supply function is extracted from the main battery system and implemented using a separate, simple power circuit that only activates after NFC verification. This separation eliminates the need for an additional starting battery while ensuring verification can be performed.
Solution Approach 2:
The NFC verification is performed before power is supplied to the control circuit, ensuring that the battery is authorized before any power transfer occurs. This preliminary verification step eliminates the need for complex power management and additional starting batteries.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces costs, simplifies maintenance, and allows the swappable battery to discharge without an additional starting battery, while enabling efficient diagnosis and data updating, thereby reducing maintenance complexity and time.
Implementation Method 1
The NFC dynamic tag module is configured to provide a vehicle identification data to the swappable battery through NFC
Data Source
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AI summary
A maintenance method is applied to a battery-swappable electric vehicle having an NFC dynamic tag module. The maintenance method includes: retrieving a vehicle identification data of the battery-swappable electric vehicle at a diagnostic system; querying a server for a configuration data associated with the vehicle identification data; writing the vehicle identification data and the configuration data to a new NFC dynamic tag module through NFC; retrieving a new tag identification data from the new NFC dynamic tag module through NFC; writing the new tag identification data to the swappable battery through NFC; providing the new tag identification data to the server, so as to associate the new tag identification data with the vehicle identification data; and replace the NFC dynamic tag module with the new NFC dynamic tag module.