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Voltage sampling device and method capable of judging sampling line break of battery pack

A voltage sampling and sampling line technology, which is applied in the field of voltage sampling devices that can determine the disconnection of the battery pack sampling line, can solve the problems of long sampling time and inability to timely judge the disconnection of the battery pack sampling line

Inactive Publication Date: 2011-10-05
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that the disconnection of the sampling line in the battery pack cannot be judged in time and the sampling time is long, and to provide a battery pack that can quickly judge the disconnection of the sampling line in the battery pack and effectively shorten the sampling time Sampling device and sampling method for broken sampling line

Method used

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  • Voltage sampling device and method capable of judging sampling line break of battery pack
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  • Voltage sampling device and method capable of judging sampling line break of battery pack

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Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0024] Such as figure 1 As shown, a sampling device capable of judging the disconnection of the sampling line of the battery pack 1 includes an isolation gating module 2, a signal processing module 3, an AD conversion module 4 and a control module 5;

[0025] The isolation gating module 2 is used to sequentially connect the sampling lines at both ends of each cell in the battery pack 1 according to the instructions of the control module 5;

[0026] The signal processing module 3 is used to collect and process voltage signals at both end...

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Abstract

The invention discloses a voltage sampling device capable of judging sampling line breakage of a battery pack, which comprises an isolation gating module, a signal processing module, an analog-digital (AD) conversion module and a control module, wherein the isolation gating module comprises n+1 gating switches, n is the number of sections of a single battery; a control end of each gating switch is electrically connected with the control module; sampling lines of the battery pack along a direction from the first section of the single battery to the nth section of the single battery are correspondingly connected with one end of each of the n+1 switches in sequence; the other ends of the odd sections of the switches are connected with one another to form a first node A; the other ends of the even sections of the switches are connected with one another to form a second node B; the first node A is connected with the signal processing module via a first sampling signal line; and the second node B is connected with the signal processing module via a second sampling signal line. Through the technical scheme, whether the sampling line is abnormal can be rapidly determined, the time for acquiring battery pack information is effectively shortened, and the use safety of the battery pack is effectively improved.

Description

technical field [0001] The invention relates to a sampling device and method of a battery pack, in particular to a voltage sampling device and a sampling method capable of judging a disconnection of a sampling line of a battery pack. Background technique [0002] As a device that provides electric energy, the battery pack has been widely used in many fields, and the performance parameters (current, voltage, temperature, etc.) of the battery pack always represent the use status of the battery pack, and it is necessary to know the current use status of the battery pack in real time , so the monitoring system or management system of the battery pack emerges as the times require, and performs real-time sampling and monitoring of some information of the battery pack. Therefore, if the sampling line inside the battery pack is disconnected, it cannot guarantee real-time and correct delivery of battery status information. The entire system using the battery pack may be threatened. ...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01R31/36
Inventor 邓林旺朱派志吴文娟曹建航
Owner BYD CO LTD
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