Charging Plug Lock Feedback Circuit for EV Connection Reliability
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Solution Overview
Problem
Existing new energy automobile electronic locks lack a circuit to synchronize their working state with the vehicle's control center, leading to issues with charging plug insertion and locking during charging, resulting in inefficient charging processes.
Innovation Solution
A feedback control circuit for new energy electronic locks, including a driving module, control unit, amplifying circuit, sampling module, and self-feedback unit, which generates and interprets signals to determine the locking state based on driving current, enabling synchronization with the vehicle's control center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no feedback control circuit is added to the electronic lock, then the device complexity remains low, but the reliability of charging connection is poor due to inability to detect locking state
Solution Approach 1:
The patent implements a feedback control circuit that includes a driving module, control unit, amplifying circuit, sampling module, and self-feedback unit. The self-feedback unit detects the locking state of the charging plug and feeds back driving current information to the control unit, which then determines whether the plug is properly locked. This feedback mechanism ensures reliable charging connection by providing real-time status information without requiring complex additional hardware.
2Measurement precision
If feedback control circuit is added to detect locking state, then the measurement precision of locking state is improved, but the device complexity increases
Solution Approach 1:
The electronic lock system uses its own driving current as the feedback signal to detect locking state. The self-feedback unit utilizes the existing driving current from the driving module, which naturally changes when the locking state changes. This self-service approach achieves precise locking state detection without requiring external power sources or additional complex sensing circuits, as the system serves itself using its operational parameters.
3Loss of time
If no real-time feedback is provided to users, then the device complexity remains low, but the loss of time occurs due to inability to detect charging plug insertion issues
Solution Approach 1:
The feedback control circuit provides real-time locking state information to the control center through the control unit. When the charging plug is properly locked or fails to lock, the system immediately detects the change in driving current and communicates the status. This real-time feedback enables users to promptly address charging issues, preventing charging time loss without requiring complex communication infrastructure beyond the existing control unit.
Data Source
AI summary
The present disclosure provides a new energy electronic lock and a feedback control circuit thereof, and a control method and a new energy automobile, applied to a new energy automobile, comprising: a driving module for receiving a locking signal and generating a lock driving signal, and driving an electronic lock to be locked through the lock driving signal; a control unit which is connected to a feedback pin of the driving module and is configured to obtain first driving current during the locking process of the electronic lock and to determine a locking state of the electronic lock according to the first driving current. The disclosure achieves to inform the user of the new energy automobile of the locking of the charging plug, so as to avoid the virtual connection of the charging plug, and ensure the charging quality of the new energy automobile.