Vehicle Battery Heating Control Based on Remaining Capacity
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Solution Overview
Problem
Vehicle batteries used in outdoor vehicles face a challenge as they tend to lose capacity when heated, leading to insufficient power for travel due to excessive energy consumption by the heating system, especially when not charged externally.
Innovation Solution
A vehicle battery heating apparatus that includes a sensor to monitor battery temperature, a controller to set target heating temperatures based on remaining capacity, and a heater to maintain optimal temperatures, preventing excessive heating and conserving energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the battery is heated by the heater while the vehicle is stopped outdoors, then the battery temperature is maintained to prevent excessive cooling, but the remaining capacity of the battery decreases due to power consumption by the heater
Solution Approach 1:
The heating control system dynamically adjusts the heating strategy based on real-time battery state (remaining capacity and temperature). When remaining capacity is high, aggressive heating is applied. When remaining capacity drops below thresholds, heating is reduced or stopped, preventing capacity depletion while adapting to changing battery conditions
Solution Approach 2:
The system changes the heating parameter (heating power or heating duration) based on the battery's remaining capacity and temperature state. By modifying heating parameters according to battery conditions, the system optimizes the balance between maintaining battery temperature and preserving remaining capacity
2Reliability
If the heater operates constantly to maintain battery temperature, then the battery is protected from excessive cooling, but the power consumption increases significantly
Solution Approach 1:
Instead of continuous heating, the system applies periodic or intermittent heating based on temperature thresholds and remaining capacity levels. Heating is activated when temperature drops below a threshold and deactivated when the threshold is reached, creating a periodic heating pattern that reduces overall power consumption while maintaining battery performance reliability
3Power
If heating is applied to improve battery output at low temperatures, then battery performance is enhanced, but the energy required for heating reduces the available capacity for travel
Solution Approach 1:
The system applies partial heating action rather than full heating when the battery's remaining capacity is low. By providing just enough heating to improve battery output to a acceptable level (rather than optimal heating), the system enhances battery performance sufficiently while minimizing the energy consumed, thereby preserving more available capacity for travel
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 the battery is appropriately heated while minimizing power consumption, preventing insufficient power for travel and maintaining battery capacity.
Implementation Method 1
a heater configured to heat the battery
Data Source
AI summary
A vehicle battery heating apparatus is to be mounted in a vehicle that travels with electricity from a battery. The apparatus includes a battery, a heater, a sensor, a controller, and a memory. The battery is mountable in the vehicle to allow the vehicle to travel. The heater heats the battery. The sensor obtains a temperature of the battery. The controller heats the battery with the heater. The memory stores heating target temperatures for respective remaining capacities of the battery. The controller obtains a remaining capacity of the battery, obtains a target temperature from the memory in accordance with the obtained remaining capacity, and sets a target temperature for heating the battery which is not on charge while the vehicle is stopped to the obtained target temperature. The heater heats the battery to the set target temperature.