Robert Boschgmbh

Samsung Sdi Co., Inc.

Volvo Car Corporation

Christian Korn

Stephan Rittler

Alfons Doerr

Hansjoerg Markus Hild

Olaf Koerner

Andre Boehm

Jens Becker

Armin Steck

Andreas Gleiter

Christian Rauh

Marianne Heizmann

Thomas Lich

Josef Kolatschek

Peter Harda

Gian Antonio D'Addetta

Andreas Lemke

Frank Stimm

Anders Axelson, Ii

Marielle Cuvillier

Benjamin Mangold

Thomas Dufaux

Joerg Christoph Wilhelm

Anders Wogel

Paer Nilsson

Andres Lemke

Anders Axelsson

The present invention relates to a method for minimizing cell aging of a battery () and/or a battery () comprising an apparatus for minimizing cell aging of the battery (). For this the following is performed: detection of battery parameters which describe the present state of the battery (); checking, on the basis of a preset aging model and the battery parameters, whether the state of the battery () is an aging state in which the cell aging of the battery () 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 (); and cyclic partial discharging and partial charging of the battery () if the battery () is in such an aging state. The method according to the invention and/or the battery () according to the invention are characterized by reduced cell aging. This means that such a battery () and/or a battery () to which the method is applied has an extended life. This results in particular in cost advantages, ecological advantages and improved user friendliness.

Method for minimizing cell aging of a battery and/or battery comprising an apparatus for minimizing cell aging of the battery

The invention relates to a method for managing a battery comprising a plurality of battery cells, wherein a maximum value of a current that can be delivered by the battery is adjusted on the basis of a frequency distribution () of a root mean square current delivered by the battery. The invention further relates to a battery management system and a computer program for carrying out said method as well as to a motor vehicle comprising a battery which includes a battery management system of said type.

Method for battery management and battery management system

In a method for checking the plausibility of sensor signals, a first sensor element detects at least one first physical quantity and outputs it as a first sensor signal, and a second sensor element detects a second physical quantity correlated with the first physical quantity and outputs it as a second sensor signal. The first sensor element has a first reliability range having an upper limit and/or a lower limit, which range is related to the second physical quantity. The first physical quantity detected by the first sensor element is recognized as plausible if the second physical quantity detected by the second sensor element lies within the corresponding first reliability range of the first sensor element.

Plausibility check of a sensor signal

The disclosure relates to a method for state of charge compensation of a battery having a plurality of battery units. The method comprises the steps of calculating a depth of discharge of each battery unit after the battery units have been charged, calculating an available charge of each battery unit before the battery units are charged, calculating a state of charge compensation requirement value on the basis of the calculated depth of discharge and the calculated available charge for each battery unit, and discharging each battery unit on the basis of the calculated state of charge compensation requirement value. The disclosure also relates to a method for charging a battery which has a plurality of battery units. Also specified are a computer program and a battery management system set up to perform the method, and a battery and a motor vehicle having a drive system connected to such a battery.

Method for state of charge compensation of a battery and method for charging a battery

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.

Method for reducing the total charge loss of batteries

A method for reducing a total charge loss of battery cells by equalizing states of charge includes making an initial check as to whether a temperature of at least one balancing unit lies below a preselectable temperature limit. Thereupon a check takes place as to whether a charging process of the battery cells has completed and the state of charge of the battery cells is &#x3e;90%. A determination then follows as to whether a maximum state of charge difference between battery cells lies above an adjustable limit (DELTA_SoC).

Method for equalizing different states of charge of batteries

A method is described for generating an item of information for indicating an airborne state for a vehicle. The method has a step of receiving a rotational speed signal which represents a rotational speed of at least one drive wheel of the vehicle. The method also has a step of generating the information for indicating an airborne state based on a comparison of a profile of the rotational speed signal with at least one reference profile for the rotational speed signal.

Methods for generating an item of information for indicating an airborne state for a vehicle and method for detecting an airborne state of a vehicle

A method is described for controlling an occupant protection arrangement which has at least two levels of protection for an occupant of a vehicle. The method has a step of selecting one of the at least two levels of protection of the occupant protection means as the level of protection to be used in the event of an impact of the vehicle using a yaw direction of the vehicle.

Method and control unit for controlling an occupant protection means of a vehicle

A method for determining a type of an impact of an object on a vehicle includes: reading in an acceleration value; determining a transverse acceleration value that represents a difference between the lateral acceleration value and an acceleration value based on the rotational acceleration value, for an acceleration transverse to the longitudinal axis of the vehicle, and/or determining a longitudinal acceleration value that represents a difference between the longitudinal acceleration value and an acceleration value based on the rotational acceleration value, in the longitudinal direction of the vehicle; and recognition of the type of the impact if the transverse acceleration value and/or the longitudinal acceleration value stands in a predetermined relation to a respective threshold value.

Method and device for determining a type of an impact of an object on a vehicle

A method of activating a passenger safety arrangement of a vehicle, the method including reading in a roll rate of the vehicle and triggering the passenger safety arrangement when, at a first time, at least one roll rate value is present, which exhibits a positive sign and is larger than a roll rate positive threshold value and when, at a second time after the first time, at least one roll rate value is present, which exhibits a negative sign and is smaller than a roll rate negative threshold value.

Growing community of inventors

Stuttgart, Germany

Christian Korn