Battery Duct Controller for Lightning Protection
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Solution Overview
Problem
Electric vehicles with batteries located under the floor are at risk of damage during lightning strikes, leading to electrolyte leakage and exposure of the driver to harmful gas, as existing safety measures do not protect against battery damage.
Innovation Solution
An apparatus comprising a receiver for positional and weather information, a gas detection sensor, an air pressure sensor, and a controller that controls the battery duct's opening and closing based on these inputs to prevent electrolyte gas from entering the passenger compartment during lightning events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery is equipped at the under floor of the vehicle adjacent to the tire, then the battery is positioned in a safe location for general operation, but the battery may be damaged by large current during lightning strikes
Solution Approach 1:
The patent divides the battery system into separate functional components: the battery itself, the battery duct for ventilation, and the passenger compartment. By segmenting the battery housing and introducing a controllable duct system, the design isolates the battery from direct lightning damage while maintaining operational reliability during normal use.
Solution Approach 2:
The battery duct acts as an intermediary element between the battery and the passenger compartment. This duct can be opened or closed based on detected conditions (lightning strikes, gas leakage), serving as a protective mediator that prevents harmful substances from reaching the passenger area while allowing normal ventilation when safe.
2Use of energy by moving object
If the battery duct is kept open for normal ventilation, then the battery is cooled and maintained, but electrolyte gas can enter the passenger room when the battery is damaged
Solution Approach 1:
The battery duct is designed as a dynamic component that can change its state between open and closed positions. The controller adjusts the duct's opening based on real-time detection of lightning strikes, gas concentration, and air pressure changes, optimizing both cooling efficiency and safety depending on operational conditions.
Solution Approach 2:
The system implements feedback control through sensors that detect gas concentration and air pressure changes in the battery duct. When abnormal conditions are detected (indicating battery damage), the controller receives feedback and automatically closes the battery duct to prevent harmful gas from entering the passenger compartment, while maintaining normal ventilation during safe operation.
3Object-affected harmful factors
If a battery protection system is added to detect and respond to lightning damage, then driver protection from harmful gas is improved, but the device complexity increases
Solution Approach 1:
The protection system uses multi-functional sensors that serve multiple purposes: the air pressure sensor detects both tire pressure changes and battery compartment pressure changes, while the gas detection sensor monitors for electrolyte leakage. The controller integrates multiple protection functions (battery duct control, warning signals) into a single system, reducing overall complexity through universal component usage.
Solution Approach 2:
The system is designed to automatically detect and respond to battery damage conditions without requiring manual intervention. When the sensors detect abnormal conditions (gas leakage, pressure changes indicating battery damage), the controller automatically closes the battery duct and activates warning signals, enabling the system to protect the driver through self-service operation.
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
Effectively protects the driver from harmful gas by closing the battery duct during lightning events and ensuring safe operation by detecting and managing air pressure and gas levels, thereby preventing gas exposure.
Implementation Method 1
a gas detection sensor configured to detect electrolyte gas within a battery duct
Implementation Method 2
an air pressure sensor configured to detect an air pressure of tire
Implementation Method 3
a controller configured to control an opening and closing of the battery duct depending on the positional information, the weather information, the detected result of the gas detection sensor, and the detected result of the air pressure sensor
Data Source
AI summary
The present technology discloses an apparatus for protecting a passenger who boards a vehicle at the time of lightning and a method thereof. An apparatus for protecting a passenger includes a receiver configured to receive positional information of a vehicle and weather information, a gas detection sensor configured to detect an electrolyte gas within a battery duct, an air pressure sensor configured to detect an air pressure of tire, and a controller configured to control an opening and closing of the battery duct depending on the positional information, the weather information, the detected result of the gas detection sensor, and the detected result of the air pressure sensor.