ESS Battery Chiller Control for Charging Heat Management
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Solution Overview
Problem
Conventional systems for managing the temperature of ESS batteries in eco-friendly vehicles do not actively manage heat based on charging and discharging environments, leading to reduced charging efficiency.
Innovation Solution
A chiller operation system that communicates with a battery control unit to provide a cooling control signal to a chiller unit when specific conditions are met, actively managing heat based on the charging and discharging environment of the ESS battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional temperature maintenance system is used, then target temperature is maintained, but active heat management according to charging and discharging environment is lacking and charging efficiency is reduced
Solution Approach 1:
The cooling control unit predicts future temperature changes based on charging/discharging patterns and activates the chiller unit before the battery temperature reaches the target threshold. This preliminary cooling action prevents temperature rise before it occurs, maintaining optimal charging conditions without requiring complex real-time control systems.
Solution Approach 2:
The system uses the battery control unit's existing temperature data and charging/discharging information to enable the cooling control unit to autonomously determine when cooling is needed. The system self-regulates based on predefined algorithms that analyze current operating conditions, eliminating the need for additional complex control mechanisms.
2Productivity
If active cooling control according to charging and discharging environment is implemented, then heat management is improved and charging efficiency increases, but system complexity increases
Solution Approach 1:
The cooling control unit serves multiple functions: it receives temperature data from the battery control unit, predicts temperature changes based on charging/discharging patterns, determines cooling requirements, and controls the chiller unit. This multi-functional design consolidates what could be multiple separate systems into a single integrated unit, reducing overall system complexity while achieving active heat management.
Solution Approach 2:
The system continuously monitors battery temperature through the battery control unit and uses this feedback to adjust cooling control signals to the chiller unit. This closed-loop feedback mechanism enables adaptive cooling control that responds to actual operating conditions without requiring complex predictive models or additional sensors.
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
Improves the charging efficiency of ESS batteries by effectively managing heat during charging and discharging.
Implementation Method 1
a chiller unit for cooling the ESS battery according to a cooling control signal during the charging and discharging of the ESS battery
Data Source
AI summary
Proposed are a chiller operation system for an ESS battery and a method of operating the same. The system includes an ESS battery, a battery control unit configured to control charging and discharging of the ESS battery, a chiller unit configured to cool the ESS battery according to a cooling control signal during the charging and discharging of the ESS battery, and a cooling control unit configured to perform heat management by providing the cooling control signal during the charging and discharging of the ESS battery. The cooling control unit is configured to communicate with the battery control unit to receive a cooling start signal, and provide the cooling control signal to the chiller unit when at least one of the cooling start signal or a preset chiller temperature condition is satisfied.