Vehicle Charging Port Mode Detection Using Multi-Signal Verification
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Solution Overview
Problem
Existing systems for electric vehicles that switch between charging and supplying modes often incorrectly determine the operating mode due to signal failures or poor contact, leading to potential electrical short circuits and equipment damage.
Innovation Solution
A method and system that detect multiple values such as voltage presence, PLC communication, connector fit, cable connection, and rated current to reliably determine whether the system is in charging, supplying, or power stop mode, using a combination of these values to prevent erroneous mode determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single control signal is used to determine operating mode, then the system is simple to operate, but the reliability of mode identification deteriorates due to signal failures or poor contact
Solution Approach 1:
The single control signal is segmented into multiple detection parameters including voltage presence detection, PLC communication detection, connector fit detection, cable connection detection, and rated current detection. Each parameter is independently evaluated to determine the operating mode, preventing erroneous determination due to failure of any single signal.
Solution Approach 2:
The system implements feedback mechanisms where each detection parameter provides information about the connection status and operating conditions. The control device综合分析 these feedback signals to accurately determine whether the system is in charging mode, supplying mode, or power stop mode, thereby improving reliability through multiple verification points.
2Reliability
If multiple detection parameters are used to determine operating mode, then the reliability of mode identification is improved, but the device complexity increases
Solution Approach 1:
The charging/supplying mechanism is designed with multi-functionality to handle both charging and supplying operations through a single common connection portion. The control device integrates multiple detection functions (voltage detection, PLC communication, connector fit, cable connection, current detection) into one unified system that accurately determines operating mode without requiring separate dedicated mechanisms for each function.
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
Ensures accurate identification of the operating mode, reducing the risk of electrical failures and equipment damage by considering multiple detection values rather than relying solely on a single control signal.
Implementation Method 1
a detection value corresponding to the presence or absence of a voltage applied from the first external device to the vehicle, the detection value being detected in an electric power channel
Implementation Method 2
a detection value corresponding to the presence or absence of PLC communication detected in the electric power channel provided between the vehicle and the first external device
Data Source
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AI summary
An operating mode of a charging/supplying system in which a vehicle is connected with a first external device or a second external device via a connecting portion used in common in a charging mode in which an electric storage device installed on the vehicle is charged with electric power from the first external device and a supplying mode in which electric power is supplied from the vehicle to the second external device, and which is operable in a selected one of the charging mode and the supplying mode, is identified. More specifically, a plurality of detection values are detected from at least one electric connection channel provided between the vehicle and the first external device or the second external device via the connecting portion, and it is determined whether the operating mode of the charging/supplying system is the charging mode or the supplying mode, based on a combination of the plurality of detection values.