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Battery system and electric vehicle including the same

A battery system and electric vehicle technology, applied in electric vehicles, batteries, secondary batteries, etc., can solve problems such as rising costs and complicated battery system structure, and achieve the effect of increasing driving time and low cost

Inactive Publication Date: 2011-03-23
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the structure of the battery system becomes complicated and the cost rises

Method used

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  • Battery system and electric vehicle including the same
  • Battery system and electric vehicle including the same
  • Battery system and electric vehicle including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0064] Hereinafter, the battery system according to the first embodiment will be described with reference to the drawings. In addition, the battery system according to the present embodiment is mounted on an electric vehicle (for example, an electric vehicle) that uses electric power as a driving source.

[0065] (1) Structure of the battery system

[0066] figure 1 A block diagram showing a schematic configuration of the battery system according to the first embodiment. Such as figure 1 As shown, the battery system 500 mainly includes: a plurality of battery modules 100, a plurality of detection circuits 20, a battery ECU (Electronic Control Unit: electronic control unit) 101 and a contactor (contactor) 102, the battery system 500 is connected via a bus (bus) 104 It is connected to the main control unit 300 of the electric vehicle. In addition, this battery system 500 has a casing (casing) which is not shown. Each component of the battery system 500 is housed in the case...

no. 2 Embodiment approach

[0145] Differences between the battery system according to the second embodiment and the battery system 500 according to the first embodiment will be described.

[0146] Figure 11 It is a plan view showing the arrangement of module groups included in the battery system according to the second embodiment.

[0147] In the battery system according to this embodiment, if Figure 11 As shown, the module group 100B includes three sets of battery modules 100a, 100b, and 100c. One detection circuit 20 is commonly provided in the three battery modules 100a, 100b, and 100c.

[0148] In the present embodiment, three sets of battery modules 100c, 100b, and 100a are arranged in a row along the X direction (direction in which a plurality of battery cells 10 are arranged) in this order.

[0149] The printed circuit board 21 including the detection circuit 20 is mounted on the end surface of one battery module 100a between the end surfaces of the battery modules 100a and 100b that are clo...

no. 5 Embodiment approach

[0174] Differences between the battery system according to the fifth embodiment and the battery system 500 according to the first embodiment will be described.

[0175] Figure 14 (a) is a plan view showing the arrangement of module groups in the battery system according to the fifth embodiment, Figure 14 (b) is viewed from one end face side Figure 14 (a) End view of the module cluster.

[0176] In the battery system according to this embodiment, if Figure 14 As shown in (a), the module group 100E includes three sets of battery modules 100a, 100b, and 100c. One detection circuit 20 is commonly provided in the three battery pack modules 100a, 100b, and 100c.

[0177] In the present embodiment, three sets of battery modules 100c, 100b, and 100a are arranged in a row along the X direction (direction in which a plurality of battery cells 10 are arranged side by side). The three sets of battery modules 100a, 100b, and 100c are arranged in this order in the Y direction (dire...

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Abstract

The invention provides a battery system and electric vehicle including the same. The battery system includes a plurality of battery modules each including one or a plurality of battery cells, and a detecting circuit that is used in common for the plurality of battery modules and detects a terminal voltage of each battery cell.

Description

technical field [0001] The invention relates to a battery system including a battery module and an electric vehicle. Background technique [0002] As a drive source for mobile vehicles such as electric vehicles, rechargeable and dischargeable battery modules are used. Such a battery module has, for example, a structure in which a plurality of batteries (battery cells) are connected in series. [0003] A user of a mobile body having a battery module needs to know the remaining amount (charged amount) of the battery module. In addition, when charging and discharging the battery module, it is necessary to prevent overcharging or overdischarging of each battery constituting the battery module. Therefore, a monitoring device for monitoring the state of a battery module has been proposed (for example, refer to Japanese Patent Application Laid-Open No. 8-162171). [0004] Japanese Patent Application Laid-Open No. 8-162171 describes a monitoring device for an assembled battery in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/48B60L11/18B60K1/00H01M50/503H01M50/505H01M50/51H01M50/522H01M50/526H01M50/569
CPCG01R31/3658H01M10/425H01M2200/106H01M10/482H01M2/206H01M10/486G01R31/396Y02E60/10H01M50/51H01M50/505H01M50/503H01M50/522H01M50/569H01M50/526G01R31/3835B60L58/18
Inventor 岸本圭司西原由知大仓计美
Owner SANYO ELECTRIC CO LTD
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