Systems and methods for monitoring ground line degradation of electric devices coupled to a communication bus

A system for monitoring ground line degradation of an electric device coupled to a communication bus, the system comprising:

• a computer system configured to, by a processor:
• receive voltage data including measurements of voltages of messages transmitted by the electric device over the communication bus;
• generate one or more health indicators from the voltage data associated with ground line degradation of the electric device, the one or more health indicators including one or more statistical moments calculated based on the voltage data;
• and
• determine a health stage of the electric device based on the one or more health indicators, the health stage including a classification based on a relationship between ground line degradation and communication loss for the electric device.

A vehicle, comprising:

• a communication bus;
• an electric device coupled to the communication bus;
• a computer system onboard the vehicle and configured to, by a processor:
• receive voltage data including measurements of voltages of messages transmitted by the electric device over the communication bus;
• generate one or more health indicators from the voltage data associated with ground line degradation of the electric device, the one or more health indicators including one or more statistical moments calculated based on the voltage data;
• and
• determine a health stage of the electric device based on the one or more health indicators, the health stage including a classification based on a relationship between ground line degradation and communication loss for the electric device.