Vehicle Battery Cooling Control During Parking
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Solution Overview
Problem
Existing battery management systems for eco-friendly vehicles, such as electric and hybrid vehicles, fail to proactively prevent overheating and associated fires during parking, which can degrade battery performance, shorten its lifespan, and pose safety risks to occupants.
Innovation Solution
A vehicle battery management apparatus that periodically monitors the battery state during parking, controls a cooling device with a cooling level corresponding to the battery's condition, and provides warnings for abnormalities both inside and outside the vehicle, using components like an Electric Water Pump, air conditioner, radiator fan, and 3-way valve, to manage temperature effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery temperature management is applied only while driving, then the cooling system can be simplified, but the battery cannot be proactively protected from overheating during parking which may cause fires
Solution Approach 1:
The system performs preliminary monitoring of battery temperature and state of charge during parking before overheating occurs. The controller continuously checks battery parameters and activates cooling measures in advance when abnormal conditions are detected, preventing fire hazards before they materialize.
Solution Approach 2:
The system implements continuous feedback monitoring of battery temperature, state of charge, and cooling system performance. Based on real-time battery status, the controller dynamically adjusts cooling water flow rate and cooling intensity, creating a closed-loop control system that responds to actual battery conditions.
2Temperature
If maximum cooling is applied continuously, then battery temperature can be kept low, but energy consumption increases and battery performance may be degraded
Solution Approach 1:
The cooling system transitions from static continuous cooling to dynamic adaptive cooling. The controller continuously adjusts cooling water flow rate and cooling intensity based on real-time battery temperature, state of charge, and environmental conditions, optimizing the balance between temperature control and energy consumption.
Solution Approach 2:
The system changes cooling parameters (water flow rate, cooling intensity) dynamically based on battery state of charge and temperature. When battery state is normal, cooling parameters are reduced or suspended; when abnormal conditions are detected, cooling parameters are increased to maximum level for rapid heat dissipation.
3Reliability
If monitoring is performed only during driving, then the system complexity is reduced, but abnormal battery conditions during parking cannot be detected in time
Solution Approach 1:
The monitoring system operates during parking to detect abnormal battery conditions before they lead to fires. The controller continuously monitors battery temperature, state of charge, and other parameters during parking, enabling early detection and prevention of thermal runaway events.
4Loss of energy
If cooling water flow rate is increased, then heat dissipation efficiency improves, but energy consumption and system wear increase
Solution Approach 1:
The cooling water pump operates dynamically with variable speed control based on real-time cooling requirements. The controller adjusts pump speed and water flow rate according to battery temperature and state of charge, avoiding constant high-speed operation and reducing unnecessary energy consumption and mechanical wear.
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 ensures efficient battery management and enhances safety by preventing overheating, reducing the risk of fires, and providing timely warnings for occupants, thereby extending battery life and ensuring vehicle safety.
Implementation Method 1
a cooling device that cools the battery
Implementation Method 2
the water-cooling technique is a technique for managing a temperature of a battery using cooling water
Data Source
AI summary
A vehicle battery management apparatus and a method thereof are provided. The vehicle battery management apparatus includes a battery that supplies power to a vehicle, a cooling device that cools the battery and a controller that monitors a state of the battery during parking and controls the cooling device to cool the battery with a cooling level corresponding to the state of the battery.