Motor Drive Safety Monitoring for Hardware Failure Shutdown

The monitoring system is divided into distinct functional modules: master control chip with hardware safety management unit, power management chip, bus voltage comparison module, safety control logic generation module, gate drive module, and drive safety status monitoring module. Each module independently monitors specific aspects of the system, allowing comprehensive safety coverage while maintaining modular architecture that manages complexity through functional separation.

The safety control logic generation module acts as an intermediary that receives signals from multiple monitoring modules (master control chip failure signal, power management chip safety status entry signal, bus voltage comparison safety status switching signal) and processes them to generate the final hardware failure mode enable signal and hardware failure status control signal. This intermediary structure integrates multiple monitoring functions without requiring direct complex interconnections between all monitoring components.

The master control chip's hardware safety management unit performs multiple functions: detecting its own hardware failures, generating failure signals, and coordinating with the power management chip. The power management chip similarly handles both power management and safety status monitoring. This multi-functionality reduces the need for separate dedicated components, thereby controlling manufacturing costs while maintaining comprehensive safety monitoring.

The system merges safety monitoring functions into existing control components rather than adding completely separate monitoring systems. The hardware safety management unit is integrated within the master control chip, and the safety control logic generation module consolidates the processing of multiple safety signals. This merging approach achieves comprehensive safety monitoring while minimizing the total component count and manufacturing complexity.