Battery Cooling System with Diagnostic Temperature Sensing
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Solution Overview
Problem
Current storage battery systems for hybrid electric vehicles lack a reliable cooling system that can effectively diagnose the status of the cooling unit and temperature detection unit, leading to inefficiencies and potential battery performance degradation.
Innovation Solution
A storage battery apparatus equipped with temperature detection units, a control unit, and a cooling unit that monitors the temperature of the cooling medium and batteries, allowing for the diagnosis of cooling unit and temperature detection unit abnormalities, and adjusts operations to maintain optimal battery performance and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cooling system operates continuously to maintain battery temperature, then battery performance is improved, but energy consumption increases
Solution Approach 1:
The control unit receives temperature information from temperature detection units and adjusts the cooling unit operation accordingly. When battery temperature is within normal range, cooling is reduced or stopped; when temperature exceeds threshold, cooling is activated or intensified, achieving energy-efficient temperature control through closed-loop feedback
Solution Approach 2:
The cooling system operates dynamically rather than continuously, with the control unit adjusting cooling intensity based on real-time battery temperature conditions, charge/discharge rates, and thermal requirements, optimizing energy consumption while maintaining battery performance
2Reliability
If temperature detection units are added to monitor battery temperature, then cooling system reliability is improved, but device complexity increases
Solution Approach 1:
The temperature detection units serve multiple functions: monitoring battery temperature for cooling control, detecting abnormal thermal conditions for safety protection, and providing data for battery state estimation, reducing the need for separate specialized sensors
Solution Approach 2:
The control unit integrates multiple functions including temperature data acquisition from detection units, cooling unit control, abnormality diagnosis, and safety management into a single centralized controller, reducing overall system complexity despite adding detection capabilities
3Temperature
If the cooling unit is designed with high cooling performance, then battery temperature control is improved, but system complexity increases
Solution Approach 1:
The cooling system is divided into multiple independent cooling units, each responsible for specific battery modules or regions. This segmentation allows targeted cooling where needed while keeping other areas simple, reducing overall system complexity while maintaining high cooling performance
Solution Approach 2:
Different cooling strategies and intensities are applied to different battery regions based on local thermal conditions, charge/discharge rates, and temperature requirements, achieving efficient temperature control without uniformly complex system design
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 enables a highly reliable cooling system that diagnoses and addresses abnormalities in the cooling and temperature detection units, ensuring efficient battery operation and extending battery life by maintaining optimal temperature conditions.
Implementation Method 1
a cooling unit which introduces cooling medium to the battery module and cools the batteries
Implementation Method 2
the temperature detection unit is a temperature detection unit measuring, at least, the temperature of a cooling medium inputting to the storage battery apparatus and the temperature of a cooling medium outputting from the storage battery apparatus, and the temperature of at least one of the batteries and the battery module
Data Source
AI summary
There is provided a highly reliable storage battery apparatus which can diagnose the status of a temperature detection unit and a cooling unit. In the storage battery apparatus comprising a battery module including one or more batteries, a plurality of temperature detection units and a cooling unit cooling the battery module, the temperature detection units measure, at least, the temperature of the cooling medium inputted to the storage battery apparatus, the temperature of the cooling medium outputted from the storage battery apparatus, and the temperature of at least one of the batteries and the battery module.