BMS system

A technology of switching circuits and output terminals, applied in the field of BMS systems, can solve problems such as cumbersome steps, and achieve the effect of improving convenience

Pending Publication Date: 2021-08-06
山东爱德邦智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method, when obtaining the status information of the battery pack, not only the 485 communication device but also the charger must be connected, the steps are cumbersome

Method used

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Embodiment Construction

[0037] The core of the present invention is to provide a BMS system, no matter the BMS system is in light sleep mode or deep sleep mode, the wake-up circuit can wake up the BMS system, and when it is necessary to read the status information of the battery pack, only need to connect 485 communication device is enough, no need to use and connect the charger, which improves the convenience.

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to ...

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Abstract

The invention discloses a BMS, which uses an analog front end to supply power to a processor. When a 485 communication device is connected with a 485 communication chip, a differential signal output end outputs a differential signal, at the moment, a first output end of a wake-up circuit, namely, a level signal of a preset pin of a processor, changes, a control switch is switched on, a DC / DC is powered on, and the corresponding 485 communication chip is powered on; and the wake-up pin of the analog front end can receive a first preset level signal output by the second output end of the wake-up circuit, so that the analog front end is woken up, the switch can be controlled to be switched on, the wake-up of the analog front end can be realized, and at the moment, no matter the BMS is in a shallow sleep mode or a deep sleep mode, the BMS can be woken up, only the 485 communication device needs to be connected when the state information of the battery pack needs to be read, a charger does not need to be used or connected, and convenience is improved.

Description

technical field [0001] The invention relates to the field of battery control, in particular to a BMS system. Background technique [0002] With the continuous development of electric vehicle industry technology, in order to suppress the common mode interference in the signal transmission process, the 485 communication function is added to the BMS (Battery Management System, battery management system) communication system. The BMS system communicates with the outside through the 485 communication chip. 485 communication device for communication. Please refer to figure 1 , figure 1 It is a structural block diagram of a BMS system in the prior art. Among them, when the switch is turned on, DC / DC (DC-DC converter, DC / DC converter) converts the output voltage of the battery pack to supply power for the 485 communication chip and processor, and the analog front end collects the state information of the battery pack , and transmit the collected state information to the processo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/10
CPCB60L2240/54B60L58/10Y02T10/70Y02T90/16
Inventor 宋玲伟周庆生檀志成滕景龙尹鹏徐辉齐伟华鲍文光
Owner 山东爱德邦智能科技有限公司
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