Volkswagen Ag

Fabian Kai-Dietrich Noering

Konstantin Jonas

Jan Piewek

Rainer Füssler

Martin Wünsch

The present invention relates to a method for investigating an ageing condition of a battery () which is provided for power supply to an electric motor (), comprising the steps of: determining at least one graphical progression of at least one operating parameter of the battery (), checking the at least one graphical progression on at least one sinusoidal curve portion, if at least one sinusoidal curve portion is recognised, extracting the at least one sinusoidal curve portion, calculating an impedance of the battery () by means of impedance spectroscopy with reference to the at least one sinusoidal curve portion, and determining the ageing condition of the battery () with reference to the calculated impedance. The invention further relates to a computer program (), a memory means, a control device () and a vehicle ().

Method for determining an ageing condition of a battery, computer program, memory means, control device and vehicle

The invention relates to a method for providing a diagnosis of at least one technical system () of a motor vehicle (). The invention further relates to a diagnostic system () and a motor vehicle ().

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Wolfenbuettel, Germany

Fabian Kai-Dietrich Noering