Robert Boschgmbh

Vincent Scharff

Olivier Cois

Jens Becker

Christoph Kroener

Christel Sarfert

Triantafyllos Zafiridis

Joerg Poehler

Rainer Heinrich Hoerlein

Simon Tippmann

Shweta Vijay Pawar

Aleksandar Aleksandrov

Melwin Pascal Watterott

Julia Ott

Girish Yergol

A method for ascertaining at least one performance characteristic for the operation of an electrical energy store is described, comprising the steps of: a) receiving operating data, in particular current and/or voltage and/or temperature measured values, of a multiplicity of electrical energy stores, wherein the multiplicity of electrical energy stores satisfy a predefined criterion, for example a predefined number of operating hours; b) ascertaining at least one ageing state variable, in particular an electrical capacitance, of the multiplicity of electrical energy stores by evaluating the operating data of the multiplicity of electrical energy stores; c) ascertaining at least one performance characteristic for the operation of an electrical energy store, in particular a maximum charging current, on the basis of the at least one ageing state variable; d) transmitting the at least one performance characteristic to a further multiplicity of electrical energy stores. Furthermore, a corresponding computer program, a corresponding machine-readable storage medium and a corresponding computer apparatus are described.

Method for ascertaining at least one operating parameter for the operation of an electrical energy store, and corresponding computer program, machine-readable storage medium and computer apparatus

A method for controlling a charging current limiting value for a battery management system. In one example, the method includes determining, for a measured temperature and a prescribed state of charge, reference currents for various time intervals; calculating a corresponding reference time constant for each reference current by using a model for the calculation of a mean value of a charging current based on a continuous current; constituting a diagram for the relationship between the reference time constant and the reference current; determining a predictive time constant by the comparison of a measured value of a charging current with the reference currents; calculating a predictive limiting mean value of the charging current; and calculating a first predictive limiting value ifor a short predictive time t, a second predictive limiting value ifor a long predictive time t, and a third predictive limiting value ifor a continuous predictive time.

Method for controlling a charging current limiting value for a battery management system, battery management system

An apparatus, computer program, storage medium and electrical energy storage system for operating an electrical energy storage unit. The procedure includes ascertaining at least one predefined first condition being checked which represents a use of the electrical energy storage unit and/or an accuracy of a mathematical model of the electrical energy storage unit. If the predefined first condition is satisfied, at least one value of a parameter of the mathematical model is ascertained and subsequently this parameter value is changed in the mathematical model. The electrical energy storage unit is subsequently operated with the changed mathematical model.

Procedure for operating an electrical energy storage unit and also corresponding apparatus, computer program, machine-readable storage medium and electrical energy storage unit

A method for determining a resistance parameter value of an electrical energy storage unit is disclosed, comprising the following steps:

Method for determining a resistance parameter value of an electrical energy storage unit, and corresponding device, computer program, machine-readable storage medium and electrical energy storage unit

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Stuttgart, Germany

Vincent Scharff