Patent ID: 11909211
Assignee: ROBERT BOSCH GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method for operating an electrical energy storage unit, the method comprising:
ascertaining, via a current sensor, a current magnitude which represents an electrical current which flows into or out of the electrical energy storage unit
ascertaining, via a voltage sensor, a first voltage magnitude which represents an electrical voltage which is present between two pole terminals of the electrical energy storage unit
ascertaining a second voltage magnitude which represents an electrical voltage and is obtained from the mathematical model of the electrical energy storage unit, where the mathematical model is loaded with the current magnitude;
checking, via an electronic control unit, for a predefined first condition which represents an accuracy of a mathematical model of the electrical energy storage unit, the predefined first condition including a quantitative deviation of the second voltage magnitude from the first voltage magnitude of less than 20 mV;
ascertaining, via an electronic control unit, in response to the predefined first condition being met, a value of a parameter of the mathematical model and changing the value of the parameter in the mathematical model; and
operating, via an electronic control unit, the electrical energy storage unit with the changed mathematical model.