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EV-based (electric vehicle based) battery management method and system

A battery management system and battery management technology, applied in the field of battery management methods and systems based on electric vehicles, can solve problems such as user loss, failure to overcharge battery pack data, over-discharge temperature, equalization control, and failure to notify users in time

Active Publication Date: 2016-05-25
JIANGSU XIAONIU ELECTRIC SCOOTER TECH CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The battery management system is closely integrated with the battery, and usually the battery management system of an electric vehicle cannot judge the battery pack data for overcharge, overdischarge, overcurrent, temperature, balance control, working mode, etc., and in the fault state self-test in the battery, so that when the battery has a problem, the user cannot be notified in time, causing unnecessary losses to the user

Method used

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  • EV-based (electric vehicle based) battery management method and system
  • EV-based (electric vehicle based) battery management method and system
  • EV-based (electric vehicle based) battery management method and system

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Embodiment Construction

[0064] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0065] figure 1 It is a flowchart of a battery management method based on an electric vehicle provided by an embodiment of the present invention.

[0066] refer to figure 1 , step S1, initialize system clock, input IO, output IO, SPI communication, Uart communication, AD interface.

[0067]Step S2, configuring the analog acquisition front-end AFE through a serial peripheral interface (SerialPeripheralInterface, SPI).

[0068] Here, the analog acquisition front-end collects the voltage of each group of batteries and monitors the overcharge / overdischarge of the battery, and balances the switch.

[0069] Step S3 , read the estimated power-on voltage, power-on estimated current, power-on estimated temperature, and po...

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Abstract

The invention relates to an EV-based (electric vehicle based) battery management method and system, comprising: initializing a system clock, input IO, output IO, SPI (serial peripheral interface) communication, Uart (universal asynchronous receiver / transmitter) communication and an AD (analog-digital) interface; configuring an AFE (analog front end) through an SPI; reading a power-up estimated voltage, a power-up estimated current, a power-up estimated temperature and a power-up estimated power quantity of each battery pack; judging whether the power-up estimated voltages, the power-up estimated currents, the power-up estimated temperatures and the power-up estimated power quantities are within a preset threshold range or not; if yes, acquiring battery pack data regularly, carrying out balance control and battery protection control on the battery pack data and calculating battery remaining capacity; if not, transmitting a corresponding control signal to an MOS (metal oxide semiconductor) transistor according to a battery fault state of the battery pack data.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a battery management method and system based on electric vehicles. Background technique [0002] Electric vehicles generally use high-efficiency rechargeable batteries as the power source. Therefore, the battery management system for charging rechargeable batteries has become an indispensable part of electric vehicles. [0003] The battery management system is closely integrated with the battery, and usually the battery management system of an electric vehicle cannot judge the battery pack data for overcharge, overdischarge, overcurrent, temperature, balance control, working mode, etc., and in the fault state Self-checking is carried out in the battery, so that when the battery has a problem, the user cannot be notified in time, causing unnecessary losses to the user. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18B60L3/00
CPCB60L3/0046B60L58/10Y02T10/70Y02T90/16
Inventor 王洪亮
Owner JIANGSU XIAONIU ELECTRIC SCOOTER TECH CO LTD
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