Patent attributes
A method and apparatus detecting battery drain are provided. The method includes: collecting critical data parameters from a plurality of electronic controller units (ECUs); identifying at least one ECU that is active from among the plurality of ECUs based on the critical data parameters and storing ECU snapshot data of the identified at least one ECU; determining an activity of the identified at least one ECU based on the ECU snapshot data and the critical data parameters; determining battery drain information based on at least one from among the ECU snapshot data, the critical data parameters, the activity of the identified at least one ECU, current draw information and fleet information; and outputting determined battery drain information. The method may be used to determine and isolate a root cause of battery drain by analyzing messages over a vehicle network.
