Measurement arrangement, high-voltage battery, motor vehicle and method for determining a complex impedance

US11519968B2 · kind B2 · utility

Assignee

• AUDI AG · DE

Inventors

• Michael Hinterberger · Großmehring, DE
• Christian Endisch · Geisenfeld, DE
• Christoph Terbrack · Ingolstadt, DE
• Bernhard Liebhart · Ingolstadt, DE

Key dates

• Filing date: Dec 23, 2019
• Grant date: Dec 6, 2022
• Expiry date: Sep 13, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R31/396
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A measurement arrangement for determining a complex impedance of a first electrical component, wherein the measurement arrangement comprises the first component and a measuring unit, which is coupled to the first component and adapted to determine the complex impedance of the first component. The measurement arrangement comprises at least one second electrical component, which is arranged with the first component in a parallel circuit, which is hooked up in parallel with the measuring unit, wherein the parallel circuit comprises at least one switching device by which an electrical connection between the first and second component can be broken, and wherein the measurement arrangement is designed to temporarily break the electrical connection between the first component and the second component by the associated switching device in order to determine the first complex impedance of the first component.