EV Battery Cooling Control with User Preference Inquiry
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Solution Overview
Problem
Existing cooling systems for electric vehicles fail to adapt their cooling timing to individual user preferences regarding quiet performance and battery life, leading to suboptimal control that does not conform to users' valued product characteristics.
Innovation Solution
A cooling system that includes a notification apparatus to inquire from the user whether to activate cooling based on temperature and full charge capacity conditions, allowing user-controlled operation and resetting operations at the end of a trip to ensure alignment with user preferences, and automatically initiating cooling in abnormal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If cooling timing is delayed to improve quiet performance, then noise is reduced, but battery life may deteriorate due to insufficient cooling
Solution Approach 1:
The cooling control system dynamically adjusts cooling timing based on user preferences. The control device stores user-selected cooling control modes (first mode prioritizing quiet performance, second mode prioritizing battery life) and activates cooling according to the stored preference, making the system adaptable rather than fixed.
Solution Approach 2:
The system changes the cooling control parameter (cooling timing) based on user-selected modes. In the first mode, cooling is delayed until higher temperatures; in the second mode, cooling activates at lower temperatures. This parameter adjustment resolves the contradiction by allowing optimal timing based on user priorities.
2Reliability
If cooling timing is advanced to extend battery life, then battery life is improved, but noise increases due to earlier cooling activation
Solution Approach 1:
The cooling control system dynamically adjusts cooling timing based on user preferences. The control device stores user-selected cooling control modes (first mode prioritizing quiet performance, second mode prioritizing battery life) and activates cooling according to the stored preference, making the system adaptable rather than fixed.
Solution Approach 2:
The system changes the cooling control parameter (cooling timing) based on user-selected modes. In the first mode, cooling is delayed until higher temperatures; in the second mode, cooling activates at lower temperatures. This parameter adjustment resolves the contradiction by allowing optimal timing based on user priorities.
3Device complexity
If cooling control is fixed regardless of user preferences, then system complexity is reduced, but adaptability to different user needs deteriorates
Solution Approach 1:
The cooling control system provides self-service by automatically selecting cooling timing based on user preferences that have been stored in advance. The control device retrieves the stored cooling control mode and executes cooling control without requiring real-time user input, making the system adapt to user needs while maintaining operational simplicity.
Solution Approach 2:
The system incorporates feedback through the notification apparatus that presents cooling execution inquiries to the user and stores their selections. This feedback loop allows the system to learn and adapt to user preferences, enhancing versatility while maintaining a relatively simple control structure through automated decision-making based on stored preferences.
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
Enables cooling control that conforms to user preferences, extending battery life and reducing noise disturbance, while ensuring the battery remains within optimal operating conditions, thereby improving user satisfaction and system performance.
Implementation Method 1
a cooling apparatus that cools the power storage
Implementation Method 2
a cooling apparatus that cools the power storage
Data Source
AI summary
An ECU performs processing including obtaining a full charge capacity when a cooling apparatus remains stopped, showing textual information that inquires about whether or not cooling can be carried out when a battery temperature is equal to or lower than a threshold value TB(1), when the full charge capacity is equal to or lower than a threshold value C(1), and when the battery temperature is equal to or higher than a threshold value TB(2), carrying out battery cooling control when a request for carrying out cooling has been issued, and maintaining a standstill state of the cooling apparatus when no request for carrying out cooling has been issued.