Charge Control System for Vehicle Battery Scheduling
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Solution Overview
Problem
Existing charge control systems for vehicles face reduced accuracy in scheduling when power storage devices are charged at multiple external sites due to varying stay periods at each location.
Innovation Solution
A charge control system that includes a learning unit to determine the stay period at each charging site and a creating unit to estimate departure times based on this information, improving the accuracy of the charge schedule by using a cloud server to manage and process vehicle and charging station data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a charge schedule is created using general vehicle behavior tendencies, then the charge schedule can be set for vehicles with poor understanding of their behaviors, but the accuracy of the charge schedule is reduced when charging at multiple charging sites with varying stay periods
Solution Approach 1:
The patent segments the charge schedule creation process by charging site type. The learning unit learns stay periods separately for each charging site (home, workplace, other), and the creation unit selects different learning results based on the current charging site. This segmentation allows the system to maintain high accuracy for each site type while preserving overall ease of operation.
Solution Approach 2:
The patent implements dynamic selection of learning results based on the current charging site. The creation unit dynamically chooses which learned stay period data to use (home stay period, workplace stay period, or other stay period) depending on where the vehicle is being charged. This dynamic adaptation improves accuracy without requiring manual user input.
2Adaptability or versatility
If the vehicle stays at multiple different charging sites, then charging flexibility is improved, but the accuracy of departure time estimation is reduced due to varying stay periods at each location
Solution Approach 1:
The patent segments departure time estimation by charging site category. Separate learning processes track stay periods for home charging, workplace charging, and other charging sites independently. When estimating departure time, the system selects the appropriate segmented data based on the current site, maintaining high accuracy across multiple charging locations.
Solution Approach 2:
The patent creates a universal charge control system that handles multiple charging site types through a single integrated platform. The learning unit and creation unit work together to provide site-specific accuracy while maintaining overall system universality, allowing the same system to accurately manage charging at home, workplace, and other locations.
3Device complexity
If a fixed charge schedule is created without considering specific charging site characteristics, then the system complexity is reduced, but the charge schedule accuracy at each specific site is compromised
Solution Approach 1:
The patent segments the learning and creation processes to handle different charging site characteristics. The learning unit maintains separate stay period data for each site type, and the creation unit selects appropriate data based on the current site. This segmentation improves site-specific accuracy while keeping the overall system structure relatively simple and unified.
Solution Approach 2:
The patent implements self-service functionality where the system automatically learns and adapts to each charging site's characteristics without user intervention. The learning unit autonomously tracks stay periods, and the creation unit autonomously selects the appropriate learning results, eliminating the need for manual user input while improving accuracy.
Data Source
AI summary
A charge control system creates a charge schedule for charging a power storage device installed on a vehicle. The power storage device is charged from a power supply located outside the vehicle. The vehicle is configured to allow charging of the power storage device from the power supply at a plurality of charging sites. The charge control system includes a learning unit and a creating unit. The learning unit is configured to learn a stay period of the vehicle for each of the charging sites. The creating unit is configured to estimate a departure time of the vehicle when the vehicle stays at any one of the charging sites, and create the charge schedule according to the departure time.