Abstract: The present invention relates to a method for minimizing cell aging of a battery (1) and/or a battery (1) comprising an apparatus for minimizing cell aging of the battery (1). For this the following is performed: detection of battery parameters which describe the present state of the battery (1); checking, on the basis of a preset aging model and the battery parameters, whether the state of the battery (1) is an aging state in which the cell aging of the battery (1) is less pronounced in the case of cyclic charging or discharging than in a quiescent state in which there is no charging or discharging of the battery (1); and cyclic partial discharging and partial charging of the battery (1) if the battery (1) is in such an aging state. The method according to the invention and/or the battery (1) according to the invention are characterized by reduced cell aging. This means that such a battery (1) and/or a battery (1) to which the method is applied has an extended life.

Abstract: The invention relates to a method for determining the capacity of a battery cell. A battery cell current I is measured during a measurement period, and an open terminal voltage UOCV1,UOCV2 of the battery cell is measured at the beginning and end of the measuring period. The method has the steps of ascertaining a total battery cell current Iges from the measured battery cell current I, ascertaining charge states SOC1, SOC2 at the beginning and end of the measurement period using the measured open terminal voltage UOCV1,UOCV2, ascertaining an estimated value of the capacity Qest using the total battery cell current Iges and a difference between the charge states SOC1, SOC2, ascertaining a total measurement error of the estimated value of the capacity Qest from measurement errors of the total battery cell current Iges and the charge states SOC1, SOC2, and ascertaining a new value of the capacity Qnew using a known value of the capacity Qact, the estimated value of the capacity Q, and the total measurement error.

Abstract: The disclosure describes a method for checking the proper method of operation of a current sensor which is designed to measure a battery current. During a precharge phase which begins at a time at which at least one electrical component is connected to a battery and during which the electrical component is precharged by a precharge current, at least one measured value provided by the current sensor is compared with an expected current value determined from an expected temporal profile of the precharge current. The disclosure also describes a computation unit and a battery which are designed to carry out the method according to the disclosure.

Abstract: A method for reducing a total loss of charge of battery cells by balancing states of charge includes checking boundary conditions as to whether a vehicle is in the park mode, whether a previous balancing step occurred in the past by at least a defined time period, whether a temperature of a balancing unit lies below an adjustable temperature limit and whether states of charge of all battery cells exceed a minimum state of charge. Additionally, the method includes determining a need for balancing such that a check is made as to whether a maximum difference of all states of charge of all battery cells is greater than an adjustable limit state of charge. Also the method includes, balancing by the balancing units if the first two steps of the method are affirmed. The balancing resistances are connected to respective battery cells for a predetermined time.

Abstract: A method for cell balancing for a plurality of battery cells. Such a method involves the cell balancing being performed on the basis of a need that can be ascertained comparatively accurately. The method described above allows equalization of the states of charge, or cell balancing, based on the state of charge of the battery cells to be made possible, even without knowledge of the capacities of the in particular series-connected battery cells, such that the loss of charge as a result of the cell balancing is particularly low. Hence, a loss of charge as a result of unnecessary equalization of the charge can be prevented or at least significantly reduced.

Abstract: A method for balancing states of charge of battery cells of a battery includes determining the individual cell capacities of the cells. A k-th cell having the smallest cell capacity, the individual states of charge, the depth of discharge, a target depth of discharge, and a target state of charge are determined. The deviation of the state of charge of a cell from the target state of charge (?SOCtarget,n) and the minimum deviation of the state of charge of a cell from the target state of charge (?SOCmin) are determined. At least one of the cells, to which ?SOCtarget,n??SOCmin>X applies, where X?0, is discharged. If ?SOCtarget,n??SOCmin?X applies to all cells, the method ends. If this condition does not apply to all cells, the individual states of charge are determined again and the method is repeated.

Abstract: A vehicle seat, in particular to a motor vehicle seat, having a base structure (3) that is to be connected to the vehicle structure (S) and a backrest (10) that can be moved relative to the base structure (3) by kinematics, such as to transfer the vehicle seat (1) from at least one usage position allowing a person to sit down to a non-usage position or to another usage position. A multi-bar linkage, in particular a four-bar linkage (V), exists at least temporarily, which linkage controls the kinematics. A leaf spring (30) is provided in the vehicle seat. The leaf spring forms a gear element of the multi-bar linkage in the relaxed extended state thereof.

Abstract: A method and apparatus for ascertaining the maximum power obtainable from a traction storage-battery system that includes a plurality of storage-battery elements connected in series. The method provides for: determining at least one power indicator for each storage-battery element, and ascertaining a quantity of the smallest power indicators of all determined power indicators of all storage-battery elements. The quantity includes the smallest power indicator or a subgroup thereof of all power indicators of the storage-battery elements. A power-output limit for the quantity is provided, starting from the power indicators of the quantity. The maximum power obtainable from the traction storage-battery system is extrapolated based on the power-output limit and linked by the extrapolation and because of the series connection, to a power output of the at least one storage-battery element for which the quantity of the smallest power indicators was ascertained.

Abstract: A method and a device for determining a battery status of a vehicle battery in a vehicle. In this context, complete discharging (S1) of the vehicle battery by vehicle-internal loads of the vehicle, complete charging (S2) of the vehicle battery, measuring (S3) a capacity and/or an energy content of the vehicle battery during the charging of the vehicle battery, and determining (S4) the battery status by means of the capacity and/or the energy content of the vehicle battery take place. The inventive method and the inventive device are advantageous since no additional hardware, apart from the hardware which is otherwise also necessary in the user mode, and also no specialist personnel are necessary to obtain a regular determination of the battery status of a vehicle battery.

Abstract: A method for determining a maximum available first constant current of a battery over a first prediction period includes determining a maximum available second constant current for a second prediction period. The second prediction period occurs after the first prediction period. The method can further include limiting a first difference between the maximum available first constant current and the maximum available second constant current to one of less than or equal to a prescribed absolute value. The method can further include determining a maximum available first constant power of the battery over the first prediction period.

Abstract: A method for monitoring the conditions of driving systems can be used in particular to control driving systems in hybrid vehicles with particular consideration given to the exhaust emission. The method monitors the conditions of driving systems that comprise an internal combustion engine and an electric motor with an energy source. A first power value for operating the internal combustion engine and a second power value for describing the power that can be provided by the energy source are ascertained, and the first and second power values are compared with each other to monitor the conditions of the driving system. The driving system is controlled dependent on the result of the comparison.

Abstract: A programming method includes programming of at least two second data processing modules using a first data processing module. The programming method further includes providing first authentication information messages to the first data processing module, wherein each of the first authentication information messages is generated from each of at least two second data processing modules. The programming method further includes generating second authentication information messages, wherein each of the second authentication information messages is generated from each of the first authentication information messages, wherein the second authentication information messages are transmitted jointly from the first data processing module using one-time sending to the at least two second data processing modules.

Abstract: A method for determining the charge state of a battery pack consisting of a number “N” of individual battery cells, includes determining the charge state of each individual battery cell SOCi for all i=1,N. The mean value of the charge states of the individual battery cells, mean (SOCi), is also determined. The method further includes determining a weighting “w” from the equation where w=gw(mean(SOCi)). The following applies for the function gw(SOC): the function value tends towards a minimum value of wmin when the argument tends toward the minimum charge state of a complete discharge SOCmin. The function value tends toward a maximum value of wmax when the argument tends towards the maximum charge state of a complete charge SOCmax; and the function gw( ) is continuous.

Abstract: A vehicle seat, in particular to a motor vehicle seat, having a base structure (3) that is to be connected to the vehicle structure (S) and a backrest (10) that can be moved relative to the base structure (3) by kinematics, such as to transfer the vehicle seat (1) from at least one usage position allowing a person to sit down to a non-usage position or to another usage position. A multi-bar linkage, in particular a four-bar linkage (V), exists at least temporarily, which linkage controls the kinematics. A leaf spring (30) is provided in the vehicle seat. The leaf spring forms a gear element of the multi-bar linkage in the relaxed extended state thereof.

Abstract: The disclosure relates to a method for ascertaining permissible operating parameters of a battery. For this purpose, operating parameters of the battery are measured, and further relevant operating parameters of the battery are determined from the measured operating parameters. Furthermore, at least one of the determined operating parameters is compared with a predefined comparison range. If the at least one operating parameter lies within the predefined comparison range, the permissible operating range of the at least one operating parameter is determined using a mathematical model of the battery. However, if the at least one battery parameter lies outside the predefined comparison range, the permissible operating range of the at least one operating parameter is determined using previously stored battery data.

Abstract: A method for reducing a total loss of charge of battery cells by balancing states of charge includes checking boundary conditions as to whether a vehicle is in the park mode, whether a previous balancing step occurred in the past by at least a defined time period, whether a temperature of a balancing unit lies below an adjustable temperature limit and whether states of charge of all battery cells exceed a minimum state of charge. Additionally, the method includes determining a need for balancing such that a check is made as to whether a maximum difference of all states of charge of all battery cells is greater than an adjustable limit state of charge. Also the method includes, balancing by the balancing units if the first two steps of the method are affirmed. The balancing resistances are connected to respective battery cells for a predetermined time.

Abstract: The disclosure relates to a method for balancing out states of charge of a battery which has a number of N battery cells. In order to balance out the individual states of charge (SOCn) of the n=1 to N cells, the state of charge of at least one cell is changed to a target state of charge (SOCtarget,n) which depends on the discharge depth (DODk) of the cell having the lowest capacity (Capk) according to the equation SOCtarget,n=1?DODk/Capn, Capn being the capacity of the nth cell to be changed. Advantageously, the method is suitable for optimizing the voltage or the energy content of a battery that is constituted of a plurality of cells.

Abstract: A vehicle seat has a basic structure, a backrest support which is articulated on the basic structure in a lockable manner by at least one fitting, a backrest structure a backrest that has the backrest support and the backrest structure, the backrest being movable in relation to the basic structure by a kinematic system in order to transfer the vehicle seat from at least one use position, in which it can be sat on, into an out-of-use position or into a further use position and back again. A four-bar linkage temporarily exists the four-bar linkage controlling the kinematic system.

Abstract: The disclosure relates to a method for enhancing a battery management system for determining at least one limit value for a first characteristic variable of a battery. The method includes measuring different values of a further characteristic variable for predetermined values of the first characteristic variable in order to determine limit values of the further characteristic variable for charging and/or discharging the battery for the predetermined values of the first characteristic variable, with the result that battery discharging or charging corresponding to the limit values does not result in a battery voltage outside a permissible battery voltage range if the battery has that predetermined value of the characteristic variable which is associated with the respective limit value.

Abstract: The disclosure describes a method for checking the proper method of operation of a current sensor which is designed to measure a battery current. During a precharge phase which begins at a time at which at least one electrical component is connected to a battery and during which the electrical component is precharged by a precharge current, at least one measured value provided by the current sensor is compared with an expected current value determined from an expected temporal profile of the precharge current. The disclosure also describes a computation unit and a battery which are designed to carry out the method according to the disclosure.