Vehicle Battery Pressure Control Through Temperature Adjustment
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Solution Overview
Problem
Secondary battery systems in vehicles face challenges in maintaining internal and external pressure differences, especially when traveling to high elevations where external atmospheric pressure decreases, leading to potential space loss within the battery due to pressure imbalances.
Innovation Solution
A vehicle secondary battery system that utilizes a processor to control battery temperature based on historical and present external atmospheric pressures, warranty time, and usage time, employing a cooling mechanism and adjusting current inputs/output to maintain pressure balance through temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the battery is moved to a high elevation environment, then the external atmospheric pressure decreases, but the internal pressure remains high, causing pressure imbalance and loss of internal space
Solution Approach 1:
The system changes the temperature parameter of the battery to control the internal pressure. By lowering the temperature when usage time exceeds warranty time, the internal pressure decreases, maintaining the pressure differential needed for structural support even in high elevation environments where external pressure is low.
Solution Approach 2:
The system uses feedback from sensors monitoring usage time, warranty time, and atmospheric pressure to dynamically adjust battery temperature. The processor continuously compares current conditions against stored data and modifies cooling control accordingly to maintain optimal pressure differential.
2Stress or pressure
If the battery temperature is lowered to reduce internal pressure, then the pressure balance is maintained, but the battery performance and efficiency may be affected
Solution Approach 1:
The system dynamically adjusts the cooling control based on real-time conditions rather than maintaining a fixed temperature. The cooling intensity varies according to the difference between usage time and warranty time, atmospheric pressure conditions, and temperature thresholds, optimizing the balance between pressure maintenance and energy efficiency.
Solution Approach 2:
The system applies cooling action only when necessary - specifically when the usage time exceeds the warranty time and temperature thresholds are met. This partial action approach avoids continuous cooling, thereby maintaining pressure balance only when needed while preserving battery energy efficiency during normal operation.
3Stability of the object's composition
If the battery structure is designed to maintain space under normal pressure, then the structural integrity is ensured, but the battery cannot adapt to high elevation environments with low external pressure
Solution Approach 1:
The system performs preliminary cooling action before the battery is deployed to high elevation environments. By lowering the temperature in advance when usage time exceeds warranty time, the internal pressure is reduced proactively, preventing the pressure imbalance that would occur upon exposure to low external pressure at high elevations.
Solution Approach 2:
The battery system transitions from a static pressure maintenance approach to a dynamic one. The cooling control is continuously adjusted based on environmental conditions and usage history, enabling the battery to adapt its internal pressure to match external conditions while maintaining structural integrity through controlled pressure differentials.
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 maintains internal and external pressure differences by dynamically controlling battery temperature, ensuring the battery's structural integrity and performance across varying environmental conditions.
Implementation Method 1
a cooling mechanism configured to cool the battery based on a difference between the usage time and the warranty time
Implementation Method 2
the processor controls a temperature of the battery by controlling a current input to the battery or a current output from the battery
Data Source
AI summary
A secondary battery system of a vehicle includes a battery in which a function is maintained by a differential pressure between an internal pressure and an external atmospheric pressure, and a CPU that controls a temperature of the battery based on information related to an average of external atmospheric pressures of the battery based on a traveling history of the vehicle, and information related to a present external atmospheric pressure of the battery based on a present position of the vehicle.