Vehicle Battery Thermal Control Using SoC-Based Charging Prediction
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Solution Overview
Problem
Conventional battery temperature management devices fail to maintain optimal charging temperatures for vehicle batteries, leading to inefficient charging and unnecessary power consumption.
Innovation Solution
A system that determines the optimal charging time point and adjusts battery temperature based on driving patterns, environmental conditions, and the state of charge (SoC) using a device comprising a first time point determiner, consumption pattern determiner, target temperature determiner, temperature change pattern determiner, and temperature controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the battery temperature management device maintains battery temperature without variation during driving, then the battery temperature is stabilized, but the battery temperature cannot reach the optimal charging temperature when charging occurs
Solution Approach 1:
The patent implements dynamic temperature management by switching between different temperature control strategies based on vehicle operating conditions. The system transitions from maintaining stable temperature during driving to actively adjusting temperature toward optimal charging temperature when charging is detected, resolving the contradiction between stability and charging efficiency through conditional dynamic control
2Stability of the object's composition
If the battery temperature management device maintains battery temperature regardless of charging status, then temperature control is continuous, but power is consumed unnecessarily when charging is not occurring
Solution Approach 1:
The patent employs periodic temperature control by activating temperature management only during charging periods rather than continuously. The controller detects charging status and selectively activates the temperature control device, achieving periodic operation that eliminates unnecessary power consumption while maintaining temperature control when needed
3Productivity
If the battery temperature is adjusted dynamically based on charging time point and SoC, then charging efficiency is improved, but the device complexity increases due to multiple determination functions
Solution Approach 1:
The patent integrates multiple determination functions (charging time point determination, SoC determination, optimal temperature determination, and control timing determination) into a single battery temperature management device. This multi-functional integration achieves improved charging efficiency through dynamic control while managing device complexity by consolidating functions rather than adding separate components
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 ensures the battery reaches an optimal temperature for efficient charging, reducing power consumption and enhancing charging efficiency by dynamically adjusting the temperature according to the vehicle's usage patterns and environmental factors.
Implementation Method 1
Batteries of the hybrid vehicle and the electric vehicle may undergo operations of charging and discharging electrical energy, based on the electrochemical reaction
Implementation Method 2
The battery temperature management device, which adjusts the battery temperature through heat exchange between a coolant and the battery
Data Source
AI summary
A device for controlling a battery for a vehicle is provided to maintain a battery temperature representing the optimal charging efficiency when the battery reaches a charging time point. The device determines the charging time point of a battery used in a hybrid vehicle and an electric vehicle, and adjusts the battery temperature based on a status of charge (SoC) of the battery at the determined charging time point.