Method for monitoring an energy supply to a motor vehicle

Abstract

A method for monitoring an energy supply of a motor vehicle. At least one supply path is provided, which supplies a safety-relevant, consumer with electrical energy. The supply path includes at least two parallel-connected current-carrying components, in particular a switch and/or fuse, protecting the consumer. At least one electrical characteristic variable, in particular a measure of an electrical resistance, describing the functionality of the supply path is ascertained. At least one electrical measured variable is sensed, which is applied to at least one of the components. As a function of the measured variable, the electrical characteristic variable (R) is determined. A check of at least the electrical characteristic variable takes place. The current-carrying components and the supply path are arranged at least partially in a control unit.

Dependencies are inferred from the claim text.