摘要:
A method is described for determining a current, in particular a short-circuit current, of a battery by means of a defined prediction time period. The method according to the invention comprises the following steps: measuring a voltage of the battery, reading a battery state and determining the solution of a differential equation which describes the temporal development of current in the course of the prediction time period using an equivalent circuit model. The differential equation comprises the battery state and the measured voltage. Moreover, a battery management unit for performing the method, a battery with battery management unit and a motor vehicle having the battery or the battery management unit are described.
摘要:
A regulating device for regulating a cooling circuit for the temperature control of a battery system having more than one heating and/or cooling element is described, wherein the regulating device comprises two regulating stages arranged successively. The regulating device according to the invention is characterised in that the first regulating stage (1A) is designed such that a specific cooling/heating power (P nom ) of the cooling circuit (3) is determined depending on one or more input variables or a variable proportional thereto, a regulating deviation thereof can be determined and a desired temperature (tnom) of the cooling agent or a variable proportional thereto can be output as a manipulated variable of the first regulating stage (1A) from the regulating deviation, and the second regulating stage (1B) is designed such that the manipulated variable of the first regulating stage (1A) can be supplied to the second regulating stage (1B) as a guide variable, a regulating deviation therefrom can be determined and an abstract signal (Sarb) can be output as a manipulated variable of the second regulating stage (1B).
摘要:
A method for determining a maximum constant current (I lim ) of a battery available over a prediction period (T) is described. The method comprises determining (10) a battery state and determining (14) the solution to a differential equation which describes the temporal development of the battery state over the course of the prediction period (T) with the aid of an equivalent circuit diagram model. A battery management unit is also provided and is designed to carry out the method according to the invention. The battery management unit may comprise means for determining the battery state and a control unit which is designed to determine the solution to the differential equation. A battery having a battery management unit according to the invention and a motor vehicle comprising a battery management unit according to the invention or a battery according to the invention are also provided.
摘要:
An arrangement includes at least one electrochemical cell, a housing, and a closure device. The housing is configured to contain the at least one electrochemical cell. The arrangement is configured such that removal or unregistered removal of one or more of the at least one electrochemical cell from the housing is prevented when the closure device is locked.
摘要:
The invention relates to a method for determining at least one state of a plurality of spatially combined battery cells connected to each other by circuitry, wherein the state is determined by observing battery cells by means of at least one observer structure (20), and wherein a subset (n x ) of a collectivity of battery cells (n tot ) is observed and the state derived from the observation is determined for more battery cells (10) than for the observed battery cells (10). The invention further relates to a computer program, by means of which the method according to the invention can be carried out, and to a battery comprising a battery management system, which is designed such that the method according to the invention can be carried out thereby. The invention also relates to a motor vehicle comprising a battery according to the invention.
摘要:
The invention relates to a method for monitoring the conditions of driving systems, to a battery comprising a module for condition monitoring, and to a motor vehicle comprising a corresponding battery, which can be used in particular to control driving systems in hybrid vehicles with particular consideration given to the exhaust emission. The aim of the invention is to monitor the conditions of driving systems (100) that comprise at least one internal combustion engine (116) and at least one electric motor (118) with at least one energy source. This is achieved in that at least one first power value for operating the at least one internal combustion engine (116) and at least one second power value for describing the power that can be provided by the at least one energy source are ascertained, and the at least one first and the at least one second power value are compared with each other in order to monitor the conditions of the driving system (100). The driving system (100) is controlled dependent on the result of the comparison. The invention further relates to a battery (112) comprising a module for such a condition monitoring and to a motor vehicle comprising such a battery (112).
摘要:
The invention provides a device and a method for testing a vehicle battery (40) in a state in which it is removed from a vehicle, by means of a testing device (30) which is designed to test the vehicle battery (40) installed in the vehicle, by means of an on-board diagnosis interface of the vehicle. The device comprises: an interface (12) to which a plug (32) of the testing device (30) can be connected, which plug (32) is designed for connection to the on-board diagnosis interface of the vehicle; an electric connecting device (13) by means of which at least one electric vehicle battery terminal (44, 45, 46, 47) of the vehicle battery (40) can be connected to the device (10); and an adapter device (18) by means of which signals, which can be received by the at least one electric vehicle battery terminal (44, 45, 46, 47) of the vehicle battery (40) via the connecting device (13), can be conducted to the interface (12) in such a way that the signals can be tested at the interface (12) for the testing device (30) by means of the plug (32) in accordance with a configuration of the on-board diagnosis interface of the vehicle.