Battery Module Current Sensor Self-Diagnosis Using Consumption Current

The single current sensor performs self-diagnosis by measuring its own consumption current. The battery controller compares the measured consumption current against threshold values to detect sensor abnormalities, enabling the system to monitor its own health without requiring additional sensors.

The current sensor serves dual functions: measuring battery pack current for normal operation and measuring its own consumption current for self-diagnosis. This multi-functionality eliminates the need for separate diagnostic sensors while maintaining reliability.

The current sensor performs self-diagnosis by measuring its own consumption current through the battery controller. This self-monitoring capability is achieved by utilizing the existing sensor and controller infrastructure, avoiding additional components that would increase module volume.

The single current sensor is designed to perform both battery current measurement and self-diagnosis functions. The battery controller utilizes the sensor output for both purposes, eliminating the need for separate diagnostic hardware and enabling battery module miniaturization.

The battery controller continuously monitors the consumption current measured by the current sensor and compares it against pre-stored threshold values. This feedback mechanism automatically detects abnormalities when the measured current exceeds or falls below the thresholds, providing simple operation with robust precision through comparative analysis.

The system detects sensor abnormalities by monitoring changes in consumption current parameters. By comparing the measured consumption current against threshold values that represent normal operating ranges, the system can identify sensor faults through parameter deviation without requiring extremely high measurement precision.