Abstract: A method, device, and computer-readable medium for operating an electrical energy store is provided. The electrical energy store includes a storage cell for storing electrical energy and a control unit. State variables of the electrical energy store are detected. The state variables are transmitted to a computation unit outside of the electrical energy store. The electrical energy store is operated based on operating parameters provided by the computation unit.

Abstract: 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.

Abstract: A method for ascertaining the state of charge of an electrical energy storage unit is described. In one example, the method includes ascertaining a voltage gradient at least based on a detected first voltage value of the electrical energy storage unit; comparing the ascertained voltage gradient with a predefined voltage gradient threshold value; and ascertaining the state of charge of the electrical energy storage unit depending on the comparison. A corresponding computer program, a corresponding machine-readable storage medium, a corresponding apparatus and a corresponding electrical energy storage system are also described.

Abstract: A method for diagnosis of a temperature control means (30) of a battery pack (10) that comprises a plurality of battery cells (20) and a plurality of temperature sensors for measuring temperatures of the individual battery cells (20), the battery cells (20) being arranged side by side in the battery pack (10), in a longitudinal direction (12) of the battery pack (10), and mechanically connected to each another, and the battery cells (20) being arranged on the temperature control means (30) and mechanically and thermally connected to it. A battery management system, and/or a battery pack (10) may be configured to execute the method. A vehicle may be fitted with a battery pack that carries out the method.

Abstract: A method for determining the capacity of an electrical energy storage unit with-in an electrical energy storage system having a plurality of electrical energy storage units is described, wherein the electrical energy storage system has at least one switching means which is configured to electrically disconnect the electrical energy storage unit, the capacity of which is being determined, from a current flow path of the electrical energy storage system in the charging and/or discharging direction and/or to electrically connect said electrical energy storage unit into the current flow path in the charging and/or discharging direction.

Abstract: A method is described for determining the capacity of an electrical energy storage unit, which method comprises the steps: a) determining a first capacity value of the electrical energy storage unit using a first mathematical model based at least on an operating time and/or on a charging throughput of the electrical energy storage unit; b) determining a second capacity value of the electrical energy storage unit using a second mathematical model based at least on a second charging throughput value of the electrical energy storage unit and on a state-of-charge difference, which is obtained from the states of charge at two different time instants; c) obtaining a correction factor for determining a capacity value using the first mathematical model on the basis of the determined first capacity value and the determined second capacity value; d) determining a third capacity value of the electrical energy storage unit using the first mathematical model based at least on the obtained correction factor and on the o

Abstract: A method for checking the behavior of at least one group of consumers in a motor vehicle. In the method, it is checked whether the at least one group of consumers behaves corresponding to a request to change their consumption, for which purpose the power consumption of the group of consumers is measured and compared to a modeled consumption calculated based on a dynamic model of the at least one group of consumers, at least one algorithm being used for the comparison.

Abstract: The invention relates to a method for operating an electrical energy store, comprising a storage cell for storing electrical energy and a control unit, wherein the control unit is designed to detect status variables of the electrical energy store, wherein status variables detected by the control unit are transmitted to a computer unit outside the electrical energy store, and wherein an operation of the electrical energy store occurs on the basis of operating parameters provided by the computer unit.

Abstract: A method is described for determining the capacity of an electrical energy storage unit, which method comprises the steps: a) determining a first capacity value of the electrical energy storage unit using a first mathematical model based at least on an operating time and/or on a charging throughput of the electrical energy storage unit; b) determining a second capacity value of the electrical energy storage unit using a second mathematical model based at least on a second charging throughput value of the electrical energy storage unit and on a state-of-charge difference, which is obtained from the states of charge at two different time instants; c) obtaining a correction factor for determining a capacity value using the first mathematical model on the basis of the determined first capacity value and the determined second capacity value; d) determining a third capacity value of the electrical energy storage unit using the first mathematical model based at least on the obtained correction factor and on the o

Abstract: A method for ascertaining the state of charge of an electrical energy storage unit is described, said method comprising the steps of: a) ascertaining a voltage gradient at least based on a detected first voltage value of the electrical energy storage unit; b) comparing the ascertained voltage gradient with a predefined voltage gradient threshold value; c) ascertaining the state of charge of the electrical energy storage unit depending on the comparison. A corresponding computer program, a corresponding machine-readable storage medium, a corresponding apparatus and a corresponding electrical energy storage system are also described.

Abstract: A method for diagnosis of a temperature control means (30) of a battery pack (10) that comprises a plurality of battery cells (20) and a plurality of temperature sensors for measuring temperatures of the individual battery cells (20), the battery cells (20) being arranged side by side in the battery pack (10), in a longitudinal direction (12) of the battery pack (10), and mechanically connected to each another, and the battery cells (20) being arranged on the temperature control means (30) and mechanically and thermally connected to it. A battery management system, and/or a battery pack (10) may be configured to execute the method. A vehicle may be fitted with a battery pack that carries out the method.

Abstract: A procedure for operating an electrical energy storage unit is described which comprises the following steps: a) checking at least one predefined first condition which represents a use of the electrical energy storage unit and/or an accuracy of a mathematical model of the electrical energy storage unit; b) if the predefined at least one first condition is satisfied, ascertaining at least one value of a parameter of the mathematical model and changing the at least one value of the parameter in the mathematical model; c) operating the electrical energy storage unit with the changed mathematical model. Furthermore, a corresponding apparatus, computer program, storage medium and electrical energy storage system are described.

Abstract: A method and apparatus for testing an operating method, in particular for an electrical energy store, having the temporally successive method steps of: wherein the operating method is defined in a first method step, wherein a simulation of the operating method is created in a second method step, wherein the operating method is applied to a test object in a third method step, wherein at least one state parameter of the test object is detected, wherein the state parameter of the test object is evaluated and compared with the simulation in a fourth method step.

Abstract: A method for monitoring a battery includes detecting at least one variable of the battery, analyzing the behavior of the variable over time to obtain a result, and identifying a fault of the battery in response to the result exceeding a threshold value.

Abstract: A method and a device for state sensing of a technical system, such as an energy store, in which performance quantities are measured and supplied to a state estimation routine, which determines the state variables characterizing the current system state using a model based on system-dependent model parameters and the measured performance quantities. To improve state estimation, the measured performance quantities may be supplied to a parameter estimation routine, which performs a use-dependent determination of the model parameters. To increase the quality of the estimation and reduce the calculating time and the memory requirements, a selection of state variables and/or parameters determined by estimation are performed depending on the dynamic response of the measured performance quantities.

Abstract: A method for detecting the status of an energy storage means (1) provides that its actual values (2, 3, 4) can be supplied to an estimate routine (5). The actual values (2, 3, 4) can be supplied in a decoupled manner to a model-based parameter estimator (5) and to a filter (7), which are subordinate to a monitoring level (12). Parameterization values (8, 11) obtained are supplied to a predictor (17) that extrapolates the behavior of the energy storage means (1).

Abstract: A method and a device for state sensing of a technical system, such as an energy store, in which performance quantities are measured and supplied to a state estimation routine, which determines the state variables characterizing the current system state using a model based on system-dependent model parameters and the measured performance quantities. To improve state estimation, the measured performance quantities may be supplied to a parameter estimation routine, which performs a use-dependent determination of the model parameters. To increase the quality of the estimation and reduce the calculating time and the memory requirements, a selection of state variables and/or parameters determined by estimation are performed depending on the dynamic response of the measured performance quantities.