Anomaly detection in high-voltage bus systems

A controller for managing anomalies in a high-voltage bus system for an electrified vehicle, the high-voltage bus system being electrically connected to a plurality of electrical components such that each electrical component in the plurality of electrical components has the same voltage when the high-voltage bus system is electrified, the controller being configured to:

• detect individual voltages for each electrical component in the plurality of electrical components using a voltage sensor of each of the electrical components in the plurality of electrical components;
• and
• detect whether any one of the individual voltages is anomalous relative to a baseline voltage for each of the electrical components in the plurality of electrical components, the baseline voltage corresponding to at least a subset of the individual voltages;
• wherein the baseline voltage is determined over an evaluation period of 0.5 second to 2 seconds.

A powertrain for an electrified vehicle, the powertrain comprising:

• a high-voltage bus system;
• a plurality of electrical components that are connected to the high-voltage bus system such that each electrical component in the plurality of electrical components has the same voltage when the high-voltage bus system is electrified;
• and
• a controller for managing anomalies in the high-voltage bus system, the controller being configured to:
• detect individual voltages for each of the electrical components in the plurality of electrical components using a voltage sensor of each of the electrical components in the plurality of electrical components;
• and
• detect whether any one of the individual voltages is anomalous relative to a baseline voltage for each of the electrical components in the plurality of electrical components, the baseline voltage corresponding to at least a subset of the individual voltages;
• wherein the baseline voltage is determined over an evaluation period of 0.5 second to 2 seconds.