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Electrical energy store and method for identifying storage module type of electrical energy store

A technology of electric energy and accumulator, which is applied in the field of storage module type, can solve the problems of the storage module personnel confusing the storage module, etc., and achieve the effect of realizing cost advantage and improving operation safety

Pending Publication Date: 2020-04-17
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this does not guarantee that the person exchanging the storage module will make the mistake of confusing the storage module after successful identification and before the storage module is inserted

Method used

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  • Electrical energy store and method for identifying storage module type of electrical energy store
  • Electrical energy store and method for identifying storage module type of electrical energy store
  • Electrical energy store and method for identifying storage module type of electrical energy store

Examples

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Embodiment Construction

[0022] figure 2 An electrical energy store according to an exemplary embodiment of the invention is shown. In particular, the electrical energy store is arranged in the motor vehicle in order to provide electrical energy for driving the motor vehicle. The accumulator includes a plurality of accumulator modules 1 . These storage modules 1 are electrically connected in series or in parallel with each other. Each of these storage modules has a plurality of storage cells, not shown, which are electrically connected in series or in parallel. The storage cells are electrochemical cells, in particular lithium-ion accumulators. In order to monitor the temperature of each of the storage modules 1 , a plurality of temperature sensors 2 and 3 are provided in each of the storage modules 1 . In the exemplary embodiment shown, this is three temperature sensors per storage module 1 , but it is also possible to provide a different number of temperature sensors 2 , 3 , for example one, two...

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Abstract

The invention relates to an electrical energy store having a plurality of storage modules (1), each of which has at least one temperature sensor strand (8) having a temperature sensor (2, 3) in the form of a temperature-dependent resistor for measuring the storage module temperature, and a battery control unit (5), which, based on the resistance values of the temperature sensor strands (8), determines the temperatures at the respective temperature sensors (2, 3), wherein the battery control unit (5) is designed to determine a respective storage module type based on the measured resistance values of the temperature sensor strands (8). The invention further relates to a method for identifying a storage module type, comprising the steps: detecting a resistance value of at least one temperature sensor strand (8) having a temperature sensor (2, 3), determining the temperatures present at the respective temperature sensors (2, 3) by means of a battery control unit (5) on the basis of the resistance values of the temperature sensor strands (8), determining a storage module type on the basis of the resistance value of the at least one temperature sensor strand (8) per storage module (1).

Description

technical field [0001] The invention relates to an electrical energy storage device according to the preamble of claim 1 and a method for identifying a storage module type of an electrical energy storage device according to the preamble of claim 5 . Background technique [0002] Electrical energy accumulators, such as lithium-ion batteries, are commonly used in the automotive sector as traction batteries, that is to say as energy sources for driving the vehicle, which comprise a plurality of accumulator modules, wherein each accumulator module in turn has A plurality of storage battery cells connected in series or in parallel. In the event of a failure within the energy storage, for example a failure of a storage battery cell, the smallest unit that is usually replaceable in current practice is the storage module. However, despite the same geometry and identical joints, such storage modules can also be different, that is to say there are different types of storage modules ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/48
CPCH01M10/486G01K7/16G01K13/00H01M2220/20H01M10/425H02J7/00038H02J7/00047Y02E60/10H02J7/007194G01R31/389
Inventor M·施奈德T·安德特恩F·普里特舍尔
Owner BAYERISCHE MOTOREN WERKE AG