Battery Thermal Management via Insulation and Power Source Control
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Solution Overview
Problem
When an electric vehicle is in operation without an external power source, the battery temperature adjustment apparatus consumes battery power to maintain optimal temperatures, leading to performance deterioration and reduced travel distance.
Innovation Solution
The system controls the operating frequency and power consumption of the temperature adjustment section by adjusting its operating conditions based on the availability of an external power source, allowing for efficient battery temperature management without relying on battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery temperature adjustment apparatus is operated using battery power during vehicle running, then the battery temperature is maintained within optimal range suppressing performance deterioration, but the battery power is consumed reducing cruisible distance
Solution Approach 1:
The patent introduces a heat insulating member as an intermediary between the battery and the external environment. This mediator reduces heat transfer between the battery and surroundings, allowing the battery to maintain its temperature without requiring continuous active cooling or heating, thus reducing power consumption while preserving performance stability
Solution Approach 2:
The heat insulating member is installed in advance around the battery to prevent excessive heat gain or loss. This preliminary protective action reduces the need for subsequent active temperature adjustment, thereby reducing battery power consumption during vehicle operation while maintaining optimal temperature conditions
2Reliability
If the temperature adjustment section operates continuously to maintain battery temperature, then battery degradation is suppressed, but power consumption increases reducing vehicle range
Solution Approach 1:
The heat insulating member acts as a mediator that thermally isolates the battery from the external environment, reducing the frequency and intensity of temperature adjustment operations needed. This extends the duration the battery can operate within optimal temperature conditions without active intervention, thereby extending cruisible distance while protecting battery lifespan
Solution Approach 2:
Instead of continuous full-power temperature adjustment, the system uses partial action through the heat insulating member that provides baseline thermal protection. This reduces the overall energy demand for temperature management, allowing the vehicle to travel longer distances on the same battery charge while still preventing degradation
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 approach reduces battery power consumption during temperature adjustments, thereby minimizing performance deterioration and extending the electric vehicle's travel distance.
Implementation Method 1
a heat insulating member for insulating the battery from the outside
Data Source
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AI summary
An object of the present invention is to provide a battery temperature adjustment apparatus that suppresses performance deterioration and degradation of a battery and at the same time, suppresses reduction in cruisible distance of an electric vehicle. Control unit (40) controls an operation of vehicular air conditioner (10) such that the temperature of battery (5) falls in a predetermined temperature range, based on battery temperature (Tb). In this case, control unit (40) changes an operating condition or an operating state of vehicular air conditioner (10) according to whether or not an external power source to supply power to battery (5) is present.