Removable EV Battery System with Bidirectional Communication
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Solution Overview
Problem
Electric vehicle traction batteries face challenges when used for external power applications due to lack of information about available power and electrical loads, leading to potential electrical problems such as overcurrent, overvoltage, or undercurrent damage.
Innovation Solution
A removable vehicle battery system with a control unit, converter, and communication link that allows for safe energy delivery to external devices by receiving and communicating power requirements, ensuring the battery system can provide energy in a usable format based on the device's needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vehicle power ports are used to power external devices, then electrical energy can be supplied to external devices, but information about available power and electrical loads is unavailable leading to potential electrical damage
Solution Approach 1:
The patent implements bidirectional communication between the vehicle power system and external devices. The system receives information from external devices about their power requirements and sends information about available power capacity. This feedback loop enables real-time matching of power supply and demand, preventing electrical damage while maximizing the ability to power external devices.
2Use of energy by moving object
If power ports and sockets are provided for external devices, then energy can be delivered outside the vehicle, but electrical problems such as blown fuses, overcurrent, or overvoltage damage may occur
Solution Approach 1:
The patent performs preliminary communication and information exchange before enabling power delivery. The system预先 (in advance) gathers information about external device power requirements and vehicle available capacity, performs compatibility checking, and establishes safe operating parameters before actual energy transfer begins. This preliminary action prevents overcurrent, overvoltage, and other electrical hazards.
Solution Approach 2:
The patent introduces a communication interface and control system as an intermediary between the power source and external devices. This intermediary layer manages the power delivery process by matching power supply capabilities with device requirements, monitoring electrical parameters, and preventing harmful conditions. The intermediary ensures reliable and safe energy transfer without direct connection risks.
3Adaptability or versatility
If vehicle accessories are made removable for external use, then versatility is improved, but access to power ports becomes difficult or inconvenient
Solution Approach 1:
The patent creates a universal power interface system that can serve multiple functions: powering external devices, communicating power requirements, managing energy delivery, and providing user guidance. This multi-functional approach consolidates what would otherwise require separate components, making the removable accessory system both versatile and easy to operate through a single integrated interface.
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
Enables safe and efficient use of electric vehicle traction batteries for external power applications by managing energy delivery and preventing damage through real-time communication and configuration of the battery system.
Implementation Method 1
a communication link between the external device and at least one of the first removable energy storage module, the removable converter, and the control unit
Implementation Method 2
a removable converter configured to convert the store of energy into a usable format for an external device
Data Source
AI summary
A removable vehicle battery system includes an energy storage module, a charging/discharging control unit, converter configured to convert the energy into a usable format for an external device, and a power outlet configured to supply energy to the external device. The system communicates with the external device regarding the energy formats the external device requires as well as the quantity of energy in the energy storage module, and the formats in which the energy storage module can supply this energy to the external device. The control unit controls energy delivery from the energy storage module to the external device.