Battery Heater Control to Prevent Low-Temperature Overload
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Solution Overview
Problem
Existing technologies face challenges in controlling the heating of a battery unit without applying an overload, particularly when both the battery unit and the heater that generates power for heating have low temperatures.
Innovation Solution
A power supply device with a heater that generates heat based on battery unit power, a driving unit that adjusts the heating level according to the battery unit's temperature, and a control unit that manages power output to prevent overloads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the heater is driven to heat the battery unit in a low-temperature environment, then the output power of the battery unit is improved, but the battery unit may be overloaded
Solution Approach 1:
The control unit continuously monitors the temperature of the battery unit and adjusts the heater driving force accordingly. When the battery temperature is low, the heater is activated with controlled power; when the battery is fully charged or temperature rises, the heater power is reduced or stopped. This closed-loop feedback control prevents overload while ensuring adequate heating for power output requirements.
Solution Approach 2:
The heater driving force is dynamically adjusted based on real-time battery temperature conditions and charging state. The system transitions from a static heating approach to a dynamic control strategy where the heater power varies continuously to match the battery's thermal needs and power delivery requirements, optimizing both performance and reliability.
2Productivity
If the heater driving force is increased to heat the battery unit faster, then the heating efficiency is improved, but the battery unit may be overloaded
Solution Approach 1:
The heater operates in periodic cycles with variable intensity rather than continuous full-power operation. The control unit activates the heater at reduced power levels during charging phases and adjusts or suspends heating during discharge phases, creating a periodic heating pattern that maintains thermal efficiency while preventing sustained overload conditions.
Solution Approach 2:
The system changes the operating parameters of the heater based on battery state - adjusting the driving force (power level) according to temperature thresholds and charging status. This parameter adaptation allows the heater to operate efficiently at low power when needed and provides optimal heating when conditions permit, resolving the contradiction between heating speed and power load.
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
The heater is driven without overloading the battery unit, ensuring efficient heating and power supply even in low-temperature environments, allowing for smooth operation of internal combustion engines and subsequent charging.
Implementation Method 1
a heater configured to generate heat on the basis of power of the battery unit
Data Source
AI summary
A present invention is a power supply device, comprising a battery unit, a heater configured to generate heat on the basis of power of the battery unit, and a driving unit configured to drive the heater with a driving force according to a temperature of the battery unit.