Swappable Battery NFC Binding for Flexible Electric Scooter Exchange
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Solution Overview
Problem
The existing ECU systems in electric scooters are costly, complex, and require additional starting batteries for verification, making battery swapping inefficient, especially in shared scooter services where batteries must be pre-bound to specific vehicles.
Innovation Solution
A battery-swappable electric vehicle and swappable battery system using an NFC dynamic tag module for data exchange and binding, allowing for dynamic binding without an ECU, enabling efficient battery swapping across different vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an ECU system is used for battery verification and control, then the electric scooter can perform battery verification and control functions, but the cost increases and the structure becomes complex
Solution Approach 1:
The patent extracts the battery verification and control functions from the ECU system and implements them through a simplified mechanism using a starting battery and control circuit. This separation eliminates the need for a complex ECU while maintaining the essential battery management capabilities.
Solution Approach 2:
The patent uses a starting battery that can be easily replaced and a simple control circuit instead of an expensive ECU system. The starting battery serves as a temporary power source for verification purposes, and the overall system uses simpler, more cost-effective components.
2Reliability
If an ECU system is used for battery verification, then battery control can be performed, but maintenance becomes difficult due to complex firmware and electronic components
Solution Approach 1:
The patent removes the firmware-dependent ECU system and replaces it with a hardware-based control mechanism using a starting battery and simple control circuit. This extraction of complex electronic control makes the system more maintainable through straightforward hardware replacement rather than firmware troubleshooting.
Solution Approach 2:
The system enables easy maintenance through self-service battery replacement. The starting battery can be easily swapped out to perform verification on swappable batteries, eliminating the need for complex diagnostic procedures and firmware updates that would require specialized maintenance.
3Reliability
If a swappable battery is bound to a specific electric scooter in advance at the base, then the battery can be verified and powered, but battery swapping efficiency decreases and operational flexibility is reduced
Solution Approach 1:
The patent implements dynamic binding where the starting battery can verify and power any swappable battery from the same vehicle group, rather than requiring pre-bound static pairing. This dynamic approach allows maintenance personnel to swap batteries between different vehicles flexibly while maintaining verification integrity through the starting battery's control circuit.
Solution Approach 2:
The starting battery serves multiple functions: it provides starting power for the electric scooter, performs verification on any swappable battery from the vehicle group, and enables flexible battery swapping operations. This multi-functionality eliminates the need for pre-binding while maintaining system reliability.
4Use of energy by moving object
If an additional starting battery is equipped to provide starting power for ECU verification, then the ECU can be powered for verification, but the device complexity and cost increase
Solution Approach 1:
The patent merges the starting battery function with the battery verification function into a single integrated system. The starting battery not only provides starting power but also serves as the verification power source and control element, eliminating the need for separate ECU power supply circuits and reducing overall system complexity.
Solution Approach 2:
The starting battery performs multiple functions including providing starting power, powering the verification process, and controlling the battery swap operation. This multi-functional design eliminates the need for additional dedicated components for each function, reducing overall system complexity.
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 for flexible battery swapping, improving operational efficiency by eliminating the need for additional starting batteries and enabling maintenance personnel to select any compatible scooter for battery exchange.
Implementation Method 1
making the swappable battery retrieve a vehicle-side vehicle identification data from an NFC dynamic tag module of the battery-swappable electric vehicle through a reader mode
Data Source
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AI summary
A battery-binding method includes: electrically connecting an unbound swappable battery to a battery-swappable electric vehicle; making the swappable battery retrieve a vehicle-side vehicle identification data from an NFC dynamic tag module of the battery-swappable electric vehicle through a reader mode; and executing a battery-binding procedure when the vehicle-side vehicle identification data and a battery-side vehicle identification data in the swappable battery each have a first part corresponding to a vehicle group.