Battery and method for regulating a battery voltage using switch-on probabilities

A battery voltage and connection probability technology, applied in battery/fuel cell control devices, battery circuit devices, arrangement of multiple synchronous batteries, etc., can solve the problems of high communication costs and high communication costs, and achieve communication cost reduction, Reliable output voltage, realize the effect of switching loss

Active Publication Date: 2014-08-06
ROBERT BOSCH GMBH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The disadvantage of this method is that a high communication effort is required, especially if the number of battery modules or battery cells connected via the coupling unit is reduced in order to achieve a fine voltage grading of the battery voltage. particularly high levels of
The high communication complexity is based in particular on the requirement to obtain a sufficiently robust and efficient battery system, multiple battery cells or multiple battery modules usually have to be located and connected in real time

Method used

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  • Battery and method for regulating a battery voltage using switch-on probabilities
  • Battery and method for regulating a battery voltage using switch-on probabilities
  • Battery and method for regulating a battery voltage using switch-on probabilities

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Embodiment Construction

[0037] exist figure 1 A process flow diagram is shown in , from which the principle of taking into account the current operating parameters 11 , 12 present in the battery cells that can be switched on during adjustment of the battery cells is evident. P1 here stands for the desired nominal switch-on probability or probability specification, which is passed on as a setpoint value to the battery cell or to the control electronics which manages the battery cell. The probability specification or desired nominal switch-on probability P1 is generated as a central control signal by a control unit (not shown) arranged in the battery. The desired nominal switch-on probability P1 is processed in step 13 . This can be compared to a weighting function. Operating parameters 11 , 12 are thus processed in step 13 , such as the state of charge and the state of aging in relation to the operation of the battery cells. It can be a first operating parameter 11 that relates directly to the batt...

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Abstract

A method for regulating a battery voltage of a battery having a plurality of battery cells configured to be selectively bridged and connected to a battery string includes regulating the battery voltage to a desired nominal voltage by alternately driving the battery cells. The method is characterized by transmitting a value for a nominal switch-on probability to one or more driving circuits of the battery cells, with the result that the one or more battery cells are each switched with an allocated switch-on probability. In addition, the invention also discloses a battery equipped with a regulating electronic device used for executing the method.

Description

technical field [0001] The invention relates to a method for regulating the battery voltage of a battery comprising a plurality of battery cells selectively connected and bridged to a battery pack, wherein in the method the plurality of battery cells are controlled by alternation The battery voltage is regulated to the desired nominal voltage. Furthermore, the invention relates to a battery having at least one battery pack with a plurality of battery cells connected via a control device and bridging the battery pack, a detection device for recording operating parameters of the plurality of battery cells and a device for Regulation electronics that regulate the battery voltage. Background technique [0002] In the future, battery systems will increasingly be used both in stationary applications and in vehicles such as hybrid and electric vehicles. In order to meet the voltage requirements for various applications and provide adjustable power, more battery cells are connecte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCY02T10/7005H02J7/0014B60L3/12B60L2240/547B60L58/21B60L58/22H02J7/0024H02J2207/20Y02T10/70
Inventor S·布茨曼
Owner ROBERT BOSCH GMBH
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