Patent ID: 8577544

Claim:
A method for checking a state of a high-voltage electric circuit of a motor vehicle, wherein the motor vehicle is an electric vehicle or a hybrid vehicle, the method comprising the steps of: a) requesting a state for the electric circuit, b) measuring with at least one measuring device of the motor vehicle disposed in the motor vehicle a current value for at least one variable relating to the electric circuit, based on which the state of the electric circuit can be derived, c) checking with at least one control device of the motor vehicle whether the current value for the at least one variable corresponds to at least one predetermined value for the at least one variable for the requested state, d) when the current value for the at least one variable corresponds to the at least one predetermined value for the at least one variable for the requested state, indicating that the requested state of the electric circuit is set, in parallel with the steps b) though d), initiating and performing with at least one additional control device disposed outside the motor vehicle the following steps: e) performing with the at least one measuring device of the motor vehicle at least one additional measurement of another current value for the at least one variable relating to the electric circuit from which the state of the electric circuit can be derived, and communicating results of the at least one additional measurement to the at least one additional control device, f) performing an additional check with the at least one additional control device whether the current value of the at least one variable corresponds to at least one predetermined value the at least one variable, and g) performing an additional indication that the requested state of the electric circuit is set, when the current value for the at least one variable corresponds to the at least one predetermined value for the at least one variable for the requested state.