Battery Pack Thermal Chain Detection Using Pressure and Voltage

The patent combines pressure detection and voltage detection into an integrated thermal chain detection system. The control unit receives both pressure sensor signals and voltage sensor signals, and only determines thermal chain occurrence when both sensors simultaneously indicate abnormality. This merging of multiple detection methods resolves the contradiction by maintaining the fast response of pressure detection while adding the accuracy filter of voltage detection to eliminate false positives from refrigerant leaks.

The control unit acts as an intermediary that processes and correlates signals from both pressure and voltage sensors. It mediates between the two detection methods by requiring simultaneous abnormality in both sensors before confirming thermal chain, thus using the voltage sensor as an intermediary verification mechanism to filter false alarms from pressure-only detection.

The system merges pressure sensor detection with voltage sensor detection and control unit processing. While this increases device complexity, it simultaneously improves reliability by requiring corroboration from both sensors before confirming thermal chain, thereby distinguishing true thermal events from false pressure variations caused by refrigerant leaks or gas discharge.

The control unit implements feedback processing by continuously monitoring both pressure and voltage signals and comparing them against predetermined thresholds. The system provides feedback only when both sensors simultaneously indicate abnormality, creating a reliable confirmation mechanism that reduces false positives while maintaining appropriate system complexity.