Vehicle Charge Control Using Test Charging and SOC Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing charge control systems face challenges in accurately determining the linkage state between vehicles and chargers due to potential errors in connection information, leading to incorrect charging operations.
Innovation Solution
A charge control device that generates a testing charging plan for multiple vehicles connected to a single charger, identifies the actually connected vehicle based on State of Charge (SOC) changes, and corrects erroneous connection information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging plans are generated and output to chargers based on connection information from multiple vehicles, then charging operations can be initiated, but errors in connection information may cause incorrect vehicles to be charged
Solution Approach 1:
The system performs a preliminary testing charging operation before actual charging. When multiple vehicles are detected at a charger, a test charging plan with minimal energy transfer is executed first to verify actual connection status. Based on the results of this preliminary action, the system then determines which vehicle should receive the main charging, preventing incorrect charging while maintaining operational efficiency.
2Loss of time
If connection information from vehicles is used directly to determine charging targets, then charging can start quickly, but linkage errors between vehicles and chargers cannot be detected
Solution Approach 1:
The system implements a feedback mechanism where the actual charging results are monitored and compared with expected outcomes. After executing a test charging plan, the system checks whether the charging was applied to the correct vehicle by monitoring power flow and SOC changes. This feedback loop allows the system to verify connection accuracy without significantly extending preparation time, as the test charging is performed rapidly.
Data Source
AI summary
A charge control device includes: a controller configured to generate a charging plan for a vehicle and outputs the generated charging plan to a charger. The controller is configured to start charging for a plurality of vehicles by outputting a predetermined charging plan for testing to the charger when it is determined that the plurality of vehicles are connected to one charger based on information received from the plurality of vehicles, and identify one of the plurality of vehicles as a vehicle actually connected to the charger based on changes in SOC received from the plurality of vehicles.