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battery management system

A battery management system and processor technology, applied in battery/fuel cell control devices, electrical devices, electric vehicles, etc., can solve the problems of inconsistent supply voltage between BMS and charging gun, affecting the normal use of BMS, etc. The effect of reducing system power consumption

Active Publication Date: 2021-04-13
BEIJING HYPERSTRONG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned very hot connection method, when using the charging gun to charge, the power supply voltage of the BMS and the charging gun often appear to be inconsistent, which affects the normal use of the BMS.

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Embodiment Construction

[0028] Aiming at the technical problem that the BMS and the low-voltage power supply generally use a very hot connection method when connecting the existing BMS and the charging gun, the normal use of the BMS is affected due to the inconsistency of the power supply voltage between the BMS and the charging gun. The embodiment of the present invention provides a BMS is mainly to add a switch circuit to the existing BMS, through the switch circuit to automatically identify the signal input to it to turn on or off the connection between the power circuit and the low-voltage power supply, so as to realize the automatic control of BMS wake-up and sleep As well as the normal fire power supply of the BMS, it can reduce the power consumption of the system and avoid the impact of the abnormal fire power supply mode on the BMS.

[0029] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0030] figure 1 The schematic structural d...

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Abstract

The invention provides a battery management system, comprising: a processor, a power circuit and a switch circuit; the processor is respectively connected to the power circuit and the switch circuit, and the switch circuit is connected between the power circuit and the low-voltage power supply; When the wake-up signal is turned on, the connection between the power supply circuit and the low-voltage power supply is turned on, and the BMS is awakened to enter a normal working state; when the processor detects that the wake-up signal disappears, the control switch circuit disconnects the connection between the power supply circuit and the low-voltage power supply, so that The BMS enters the dormant state. In the BMS provided by the present invention, the switch circuit can automatically identify the signal input to it, turn on or off the connection between the power supply circuit and the low-voltage power supply, realize the automatic control of the wake-up and sleep of the BMS and the normal fire power supply of the BMS, and reduce the While reducing the power consumption of the system, it can avoid the impact of abnormal power supply mode on the BMS.

Description

technical field [0001] The invention relates to battery management technology, in particular to a battery management system, which belongs to the technical field of electric vehicles. Background technique [0002] With the rapid increase in the number of new energy vehicles in my country's auto industry, consumers are paying more and more attention to electric vehicles. As the core component of electric vehicles, the battery's safety performance is particularly important. At present, the battery management system (Battery Management System, BMS) is used in the market to monitor and manage the state of the battery in real time. [0003] In electric vehicles, the BMS is generally powered by the low-voltage power supply on the vehicle. When the functions of the BMS are fully turned on, the power consumption is large. If the vehicle is not used for a long time and the BMS is always in the working state, it is easy to consume the power of the low-voltage power supply, which wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/10B60L3/00
CPCB60L58/10Y02T10/70
Inventor 郭富强李帅
Owner BEIJING HYPERSTRONG TECH