Battery Housing Temperature Estimation Using Detachable Pack Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of effectively managing temperature in battery rental devices, where multiple batteries are stored, is not adequately addressed by existing technologies.
Innovation Solution
A temperature estimation device and method that estimates internal and external temperatures of a housing accommodating power storage devices using temperature detectors, considering the operational state of the batteries, and detects abnormal changes to manage and adjust the environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature detectors are installed in each power storage device, then temperature measurement precision is improved, but device complexity increases
Solution Approach 1:
The temperature detector installed in one power storage device serves multiple functions: it measures the temperature of that specific device and simultaneously provides temperature data for estimating the overall internal temperature of the housing. This multi-functionality reduces the need for additional detectors while maintaining measurement precision.
Solution Approach 2:
The system uses the temperature detector in a single power storage device as an intermediary to estimate the internal temperature of the housing. By measuring the temperature of one device and using it as a reference, the system can infer the overall internal temperature without installing detectors in every device.
2Reliability
If multiple temperature detectors are installed in the housing, then temperature management reliability is improved, but cost increases
Solution Approach 1:
The invention extracts the temperature measurement function from multiple potential detector locations and concentrates it in a single power storage device. By taking out only the essential measurement point (one detector in one device), the system achieves sufficient reliability without the cost of multiple detectors.
Solution Approach 2:
The system uses the temperature data from one detector as a representative sample to estimate the overall internal temperature. This copying approach allows the single measurement to represent the entire housing environment, reducing the need for multiple physical detectors.
3Device complexity
If temperature estimation is performed based on single detector data, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The system changes the parameter being measured from direct internal housing temperature to power storage device temperature. By measuring the temperature of the power storage device (which has good thermal contact with the housing), the system can indirectly estimate the internal housing temperature with sufficient precision while maintaining low device 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
Enables precise temperature management within battery storage devices, detecting and addressing abnormal conditions to ensure safe and efficient battery operation.
Implementation Method 1
a temperature detected by a temperature detector provided in the power storage device
Data Source
AI summary
A temperature of a power device to which a power storage device is attached is estimated on the basis of a temperature detected by a temperature detector provided in a power storage device detachably held in the power device.