Battery Charge-Discharge Scheduling for Vehicle Production Deadlines
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Solution Overview
Problem
Existing technologies fail to efficiently manage the charging and discharging of secondary batteries in vehicle manufacturing processes, considering production-related information such as production unit counts and shipping time limits, which can lead to battery deterioration and inefficiencies in manufacturing time.
Innovation Solution
A charge discharge management system that includes a server and charging device, which acquires production management information to determine optimal charge and discharge amounts and times for secondary batteries, adjusting charging and discharging processes based on production unit counts and shipping time limits, using both contact and non-contact charging methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If charging and discharging processing is executed to manage SOC of secondary batteries, then battery deterioration is suppressed, but manufacturing time increases due to additional processing time
Solution Approach 1:
The system performs preliminary actions by acquiring production management information (production unit counts, shipping time limits) before determining charge/discharge amounts. This allows the system to pre-calculate optimal charging strategies that accommodate manufacturing schedules, thereby suppressing battery deterioration without extending manufacturing time.
Solution Approach 2:
The system dynamically adjusts charge/discharge amounts based on real-time production management information. By making the charging process adaptive to production unit counts and shipping deadlines, the system optimizes the balance between battery health management and manufacturing efficiency, avoiding fixed scheduling conflicts.
2Reliability
If charge rate is managed at appropriate value to suppress battery deterioration, then battery longevity increases, but production efficiency decreases due to time constraints
Solution Approach 1:
The system changes the parameter of charge/discharge amount based on production management information. By dynamically adjusting these parameters according to production unit counts and shipping time limits, the system achieves appropriate charge rates that protect battery longevity while maintaining production efficiency requirements.
Solution Approach 2:
The system uses feedback from production management information (production unit counts, shipping time limits) to continuously optimize charge/discharge amounts. This feedback mechanism ensures that battery management strategies are constantly adjusted to maintain both battery longevity and production efficiency.
3Productivity
If charging processing is performed according to fixed takt time, then manufacturing schedule is maintained, but battery health management becomes insufficient
Solution Approach 1:
The system serves multiple functions by integrating both production scheduling and battery health management into a single charge/discharge determination process. By making the charging system universal to handle both manufacturing schedule requirements and battery health concerns, it achieves both manufacturing schedule adherence and adequate battery health management simultaneously.
Data Source
AI summary
The charge discharge system according to the embodiment includes: an information acquisition unit that acquires production management information regarding at least one of a number of production vehicles per predetermined time and a shipping time limit of a vehicle having a secondary battery; a charge discharge management device that includes a charge discharge amount determining unit that determines a charge discharge amount per unit time to the vehicle based on the production management information; and a charging discharging device that executes a charging rate adjustment processing that includes at least one of a charging process for charging the secondary battery and a discharging process for discharging the secondary battery in accordance with the charge discharge amount.