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Device and method for monitoring an energy store and energy store having the device

A technology for accumulators and temperature control devices, applied in the fields of energy accumulators and motor vehicles, which can solve the problem that the battery pack battery cannot reach the end of its life, and in summer months or in warmer regions, it may be 40°C and above The external temperature may be outside the allowable temperature range, etc., to achieve the effect of improving failure safety, improving failure safety, and reducing manufacturing costs

Active Publication Date: 2016-08-03
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, for example in the summer months or in warmer regions, outside temperatures of possibly 40° C. and above may lie outside the permissible temperature range, so that the battery cells cannot reach temperatures of, for example, 10 °C without cooling. years of life

Method used

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  • Device and method for monitoring an energy store and energy store having the device
  • Device and method for monitoring an energy store and energy store having the device
  • Device and method for monitoring an energy store and energy store having the device

Examples

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Embodiment Construction

[0039] figure 2 A schematic diagram of an energy store 20 according to one embodiment of the invention is shown.

[0040] The energy storage or battery system 20 includes a plurality of battery cells 500 1111 to 500 klmn . Each battery cell may, for example, have a voltage of 4.5V and a capacity of 60-75Ah. The plurality of battery cells 500 1111 to 500 klmn are organized in multiple battery pack modules 400 111 to 400 klm , so that each battery module includes n battery cells. Each battery module can comprise, for example, n=11 to 13 battery cells connected in series and thus have a voltage of 50-60 V and a capacity of 60-75 Ah. The plurality of battery pack modules 400 111 to 400 klm are organized in multiple battery strings up to 300 11 to 300 kl , so that each battery string includes m battery modules. Each battery string may comprise, for example, m=13 to 20 battery modules connected in series and thus have a voltage of 640-1170V and a capacity of 60-75Ah. ...

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PUM

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Abstract

The invention relates to a device (710, 720, 730, 740) for monitoring an energy store (20; 30) comprising a plurality of battery cells (5001111-500klmn), which are arranged in a plurality of battery groups (2001-200k, 30011-300kl, 400111-400klm), and a temperature-control device for controlling the temperature of the battery cells (5001111-500klmn) by means of a plurality of partial flows of a temperature-control medium, each of the partial flows being associated with one of the battery groups (2001-200k, 30011-300kl, 400111-400klm), characterized by: a plurality of sensor apparatuses (720) for sensing temperature measurement values of the battery cells (5001111-500klmn), each of the sensor apparatuses (720) being arranged in such a way that the sensor apparatus can sense the temperature measurement value of one of the battery cells (5001111-500klmn); an apparatus (710, 740) for determining a plurality of average temperature values from the sensed temperature measurement values, each of the determined average temperature values being determined in such a way that the determined average temperature value is associated with one of the battery groups (2001-200k, 30011-300kl, 400111-400klm); and an apparatus (740) for evaluating the plurality of determined average temperature values and, if one of the determined average temperature values exceeds a temperature threshold value, determining that the partial flow associated with the associated battery group (2001-200k, 30011-300kl, 400111-400klm) has a fault. The invention further relates to a battery system, a vehicle, a method, a computer program, and a computer program product.

Description

technical field [0001] The invention relates to a device and a method for monitoring an energy store or a battery system, as well as an energy store with the device. Furthermore, the invention relates to a vehicle, in particular a motor vehicle, such as an electric vehicle or a hybrid vehicle, having such an energy store. Background technique [0002] It is foreseeable that in the case of stationary applications in industry or in domestic technology, such as in the case of wind power plants, and in the case of mobile applications, such as in electric vehicles (electric vehicles (electric vehicles), EV) or In the case of hybrid electric vehicles (hybrid electric vehicles, HEV), new battery pack systems, such as those with lithium-ion accumulators or nickel-metal hydride accumulators, are increasingly being used as rechargeable energy stores . [0003] These battery systems have to meet very high requirements in terms of available capacity, charging / discharging efficiency, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/48H01M10/633
CPCH01M10/482H01M10/486H01M2220/20H01M10/6556H01M10/6567H01M10/617Y02B10/30B60L58/26H01M10/633Y02T10/70Y02E60/10H01M10/625H01M10/6568B60L2200/10B60L2200/12B60L2200/32
Inventor G.埃斯特格拉尔
Owner ROBERT BOSCH GMBH
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