Battery Module Arc Detection for Fast Load Disconnection
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Solution Overview
Problem
There is a need for a method and battery system that can quickly detect the occurrence of electric arcing within a battery module and disconnect it from a load to prevent damage and ensure safety.
Innovation Solution
The method involves measuring operation states such as current and voltage in the battery module, generating operation signals, and analyzing these signals using a signal-conditioning circuit to detect patterns indicative of arcing. Upon detection, a warning signal is generated to disconnect the battery module from the load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional battery monitoring systems are used, then basic voltage and current monitoring is provided, but arc-fault detection capability is insufficient and response time is too slow
Solution Approach 1:
The system performs preliminary action by continuously monitoring operation signals and using pattern recognition algorithms to detect early signs of arcing before it causes damage. The control unit analyzes voltage and current signals for characteristic arc patterns, enabling early warning and preventive disconnection before the arc fault escalates to a hazardous condition.
Solution Approach 2:
The patent replaces conventional mechanical or simple electronic monitoring with an intelligent signal analysis system. The control unit uses automated pattern recognition and signal processing to detect arc faults, substituting manual or basic threshold-based monitoring with advanced computational analysis that can identify subtle arc characteristics in real-time.
2Measurement precision
If advanced signal analysis is implemented for arc detection, then detection precision is improved, but device complexity increases
Solution Approach 1:
The control unit is designed with multi-functionality, serving both as a general battery management controller and as an arc-detection system. The same control unit that manages battery operation also performs signal conditioning, pattern recognition, and arc detection, eliminating the need for separate dedicated arc-detection hardware and reducing overall system complexity.
Solution Approach 2:
The system uses its existing measurement infrastructure to serve dual purposes. The voltage and current sensing circuits already present in the battery management system are utilized for arc detection, and the control unit's processing capabilities are leveraged for pattern recognition, making the system self-sufficient and avoiding additional external detection devices.
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
This approach allows for the rapid detection of arcing within the battery module, enabling timely disconnection and preventing potential damage to the battery module and connected loads, thereby enhancing safety.
Implementation Method 1
measuring at least one operation state of the battery module, generating at least one operation signal respectively corresponding to the at least one operation state
Data Source
AI summary
The present disclosure refers to a method for detecting the occurrence of a dielectric breakdown in a battery module. The present disclosure further refers to a method for disconnecting a battery module from a load upon detection of a dielectric breakdown in a battery module. Also, the present disclosure is related to a battery system with a battery module, the battery system being configured to perform the disclosed method for detecting the occurrence of a dielectric breakdown in a battery module and/or being configured to perform the disclosed method for disconnecting a battery module from a load upon detection of a dielectric breakdown in a battery module. Also, the present disclosure is related to a vehicle comprising at least one battery system according to the disclosure.