Method and apparatus for determining an operating point-dependent change in resistance factor and vehicle

Method for determining an operating point-dependent resistance of an energy storage device, wherein the method comprises:

• determining an operating point-dependent resistance depending on a presently stored operating point-dependent change in resistance factor (AFAP), wherein the operating point-dependent change in resistance factor (AFAP) is determined according to the steps:
• determining a start resistance at an operating point start point in time,
• determining a change in resistance between a present resistance of the energy storage device and the start resistance at least at an operating point end point in time,
• determining an end resistance as a sum of the start resistance and the change in resistance determined at the operating point end point in time,
• wherein the operating point-dependent change in resistance factor (AFAP) is determined as a ratio between the end resistance and a nominal resistance proportion of the start resistance.

Apparatus for determining an operating point-dependent change in resistance factor (AFAP) of an energy storage device, wherein the apparatus comprises:

• at least one evaluation device,
• wherein a start resistance is determinable at an operating point start point in time, wherein a change in resistance between a present resistance of the energy storage device and the start resistance is determinable at least at an operating point end point in time,
• wherein an end resistance is determinable as a sum of the start resistance and the change in resistance determined at the operating point end point in time, and
• wherein the operating point-dependent change in resistance factor (AFAP) is determinable as a ratio between the end resistance and a nominal resistance proportion of the start resistance.