Self-adaptive control method for battery management system for electric automobile

A battery management system and self-adaptive control technology, applied in electric vehicles, measuring electricity, vehicle energy storage, etc., can solve problems such as the inability to adapt to the optimal control of power batteries, and achieve the effect of eliminating negative effects and ensuring optimality

Active Publication Date: 2013-01-09
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The previous relatively mature BMS products basically covered the above functions. However, during the entire battery life cycle, there are large differences in the characteristics of the power battery, which will inevitably cause different life conditions due to the chemical changes of the battery itself. The ...

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  • Self-adaptive control method for battery management system for electric automobile
  • Self-adaptive control method for battery management system for electric automobile
  • Self-adaptive control method for battery management system for electric automobile

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Embodiment Construction

[0019] Such as figure 1 shown. During the working process of the battery, the BMS basic module collects the status information of the battery in real time. These status information mainly include the voltage parameters of each single cell of the battery, the loop current of the battery working process, and the temperature information of each temperature collection point in the battery. According to these state information, BMS performs charge and discharge balance control on the battery, estimates the state of charge of the battery, and processes power supply, fan control, and fault alarm information. At the same time, during the entire life cycle of the battery, the self-test module regularly detects the state of the battery, and the control module decides whether to carry out the self-test working condition test process, and the real-time capacity and aging coefficient of the battery displayed during the working condition test process , equivalent charge and discharge rate ...

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Abstract

The invention discloses a self-adaptive control method for a battery management system for an electric automobile. The battery management system comprises a BMS (battery management system) basic module, a self-test module, a control module, and a parameter and decision regulation module, wherein the BMS basic module is used for finishing the basic functions needed by the battery management system; the self-test module is used for detecting the state of a battery at regular time, and executing the control instruction sent by the control module to perform self-test on the battery; the control module is used for judging whether the self-test is performed on the battery according to the state of the battery, and transmitting the real-time state parameter obtained by the test to the parameter and decision regulation module; and the parameter and decision regulation module is used for regulating the balance control decision of the BMS basic module and the estimation model parameter of the state of charge (SOC) of the battery, and realizing self-adaptive control on a battery management process via the self-regulation balance control decision and the estimation model parameter of the SOC of the battery in the whole life cycle of the battery.

Description

technical field [0001] The invention relates to the field of electric vehicle battery control methods, in particular to an adaptive control method for an electric vehicle battery management system. Background technique [0002] With the continuous reduction of available fuel in the world, the continuous rise of fuel prices, and the emission of vehicle exhaust have also caused pollution to the environment in which people live, so people urgently need a product that can replace traditional fuel vehicles. [0003] As an excellent product to replace traditional fuel vehicles, electric vehicles have become a hot spot of scientific research due to their "zero emission" advantages. As the core power component of electric vehicles, the battery life and safety are related to the performance of the vehicle, and the related battery management system plays an extremely important role. [0004] The battery management system (BMS) is the link between the battery and the user, and the mai...

Claims

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Application Information

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IPC IPC(8): B60L11/18G01R31/36
CPCY02T10/7005Y02T10/70
Inventor 刘征宇毕翔韩江洪张建军郁俊泉张纯鹏
Owner HEFEI UNIV OF TECH
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