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Battery device
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A technology for battery devices and battery packs, applied in battery circuit devices, circuit devices, measuring devices, etc., which can solve the problems of unmanageable identification information ascending and descending sequence, becoming a communication load, etc., and achieve the effect of avoiding the increase of communication load
Active Publication Date: 2014-04-23
MITSUBISHI HEAVY IND LTD +1
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Problems solved by technology
[0006] However, in the invention disclosed in the aforementioned Patent Document 1, since the reconnected terminal generates a request message using temporary identification information, there is a problem that the ascending and descending order of the identification information cannot be managed.
[0007] In addition, in the invention disclosed in the above-mentioned Patent Document 2, since the allocation request message is periodically transmitted, there is a problem that it becomes a communication load.
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no. 1 approach
[0031]figure 1 is a diagram showing a schematic configuration of the battery device according to the first embodiment of the present invention.
[0032] Such as figure 1 As shown, the battery device 100 of the present embodiment is mainly composed of a plurality of battery management units (battery management units) 10a, 10b, 10c, a central management unit (central management unit) 20, a first communication line 30, a second communication line 40. A battery pack group composed of a plurality of battery packs 50a, 50b, 50c, and switching elements 60a, 60b, 60c.
[0033] The battery packs 50a, 50b, and 50c are basically composed of single cells or a plurality of single cells connected in series. A voltage sensor (not shown) for detecting the voltage of the cell and a temperature sensor (not shown) for detecting temperature are provided on each cell. The detection results of the voltage sensor and the temperature sensor are output to the battery management unit 10 provided corr...
no. 2 approach
[0063] Next, use figure 2 A second embodiment of the present invention will be described.
[0064] In the above-mentioned first embodiment, identification information is assigned to each battery management unit by sequentially connecting the second communication line 40, but in this embodiment, each battery management unit is assigned identification information by sequentially turning on the power of each battery management unit. The two differ in that the battery management unit assigns identification information sequentially.
[0065] Hereinafter, regarding the battery device 200 of this embodiment, the description of the same points as those of the first embodiment will be omitted, and only the different points will be described.
[0066] Such as figure 2 As shown, the battery management units 10a', 10b', 10c' are connected by a daisy chain through the second communication line 40, and any battery management unit 10a' located at the end of the plurality of battery manag...
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Abstract
A battery apparatus (100) includes a row battery group including a plurality of series-connected row batteries (50a to 50c) including one or more battery cells; a plurality of battery management sections (10a to 10c), corresponding to the individual row batteries (50a to 50c), for managing the battery statuses of the corresponding row batteries (50a to 50c); a central management section (20) for granting unique identification information to the individual battery management sections (10a to 10c) and acquiring information about the battery statuses of the row batteries (50a to 50c) from the respective battery management sections (10a to 10c) for management; second communication lines (40) with which the plurality of battery management sections (10a to 10c) are daisy-chained; a first communication line (30) with which, of the plurality of battery management sections (10a to 10c), the battery management section (10a to 10c) located at one end is connected to the central management section (20); and a plurality of connection switching sections (60a to 60c), provided in the individual second communication lines (40) between the battery management sections, for switching the connection and disconnection between the battery management sections.
Description
technical field [0001] The invention relates to a battery device. Background technique [0002] Conventionally, as a method of setting identification information of a network connecting a plurality of devices, for example, a method disclosed in Japanese Patent Laid-Open No. 2004-193643 (Patent Document 1) is known. Patent Document 1 discloses a technique in which a reconnected terminal transmits a connection request message including temporary identification information to other terminals, and as a response, when the other terminal that has received the connection request message does not receive the message, it is displayed that it has the same information as the temporary identification information. In the case of a competition message of a terminal whose identification information competes with the identification information, the temporary identification information is set as its own identification information. [0003] In addition, for example, Patent No. 3549676 (Paten...
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