Vehicle Battery Temperature Control for Timed Charging Readiness
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Solution Overview
Problem
Existing vehicle systems fail to consider the optimal timing for temperature adjustment of batteries, leading to inefficient and prolonged thermal regulation that can degrade electric efficiency.
Innovation Solution
A control device that acquires information on the time required for vehicle arrival and battery temperature adjustment, initiating battery temperature adjustment only when the arrival time is equal to or less than the adjustment time, and adjusting accordingly to ensure efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If temperature adjustment of the battery is started early to ensure the battery is at an appropriate temperature for charging, then the battery temperature suitability for charging is improved, but the time period during which temperature adjustment is performed becomes excessively long, causing deterioration of electric efficiency
Solution Approach 1:
The control device performs preliminary calculation of the time required for temperature adjustment before actually initiating the temperature adjustment operation. By comparing this calculated time with the predicted time until charging, the system determines the optimal moment to start temperature adjustment, ensuring the battery reaches appropriate temperature without unnecessary prolonged operation, thus balancing temperature suitability with energy efficiency
Solution Approach 2:
The control device continuously monitors the actual temperature adjustment time and compares it with the predicted time until charging. Based on this feedback, the system adjusts the temperature adjustment operation timing dynamically, stopping the adjustment when the battery reaches the appropriate temperature or when the predicted charging time changes, thereby preventing excessive energy consumption while ensuring charging readiness
2Reliability
If temperature adjustment of the battery is started early to ensure charging readiness, then the battery is ready for charging, but the duration of temperature adjustment becomes unnecessarily long, reducing overall system efficiency
Solution Approach 1:
The control device calculates the time required for temperature adjustment in advance and uses this information to determine the optimal start timing. By performing this preliminary time assessment, the system ensures the battery will be ready for charging without initiating temperature adjustment too early, thus maintaining charging reliability while improving system efficiency through optimized timing
Solution Approach 2:
The control device dynamically adjusts the temperature adjustment operation based on real-time conditions. It continuously monitors whether the actual temperature adjustment time is still within the predicted charging time window and stops or resumes adjustment accordingly, making the system adaptive and efficient rather than operating on fixed predetermined schedules
Data Source
AI summary
An ECU (control device) includes a terminal (first acquisition unit) for acquiring information (information based on a first time) for calculating an arrival required time until a time at which charging is predicted to be executed, and a terminal (second acquisition unit) for acquiring information (information based on a second time) for calculating a temperature adjustment required time required for adjusting a temperature of the power storage device (battery) to an appropriate temperature for charging. When the length of the arrival required time (first time) is equal to or less than the length of the temperature adjustment required time (second time), ECU starts adjusting the temperature of the power storage device so that the temperature of the power storage device becomes the appropriate temperature.