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Filtering treatment method and device for sampling current of power battery and battery management system

A power battery and filter processing technology, which is applied to battery circuit devices, circuit devices, secondary batteries, etc., and can solve problems such as poor filter processing effects

Inactive Publication Date: 2017-09-19
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a filter processing method and device for power battery sampling current and a battery management system, so as to solve the problem in the related art that the filter processing effect on the current collected by the battery management system is poor

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  • Filtering treatment method and device for sampling current of power battery and battery management system
  • Filtering treatment method and device for sampling current of power battery and battery management system

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[0028] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0030] It should be noted that the terms "first" and "second" in ...

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Abstract

The invention discloses a filtering treatment method and device for sampling current of a power battery and a battery management system. The method comprises the following steps: judging whether the power battery is in a zero working condition at a sampling moment or not, wherein the sampling moment is a moment when current of the power battery is sampled, and the zero working condition is a working condition where the power battery does not perform charging and discharging; if the power battery is in the zero working condition at the sampling moment, performing filtering treatment on a current sampling value of the power battery through a first preset filtering algorithm, so as to enable the current sampling value to be within a preset current range. According to the filtering treatment method, the problem of relatively poor filtering treatment effect on the sampled current of the power battery in the prior art is solved.

Description

technical field [0001] The present invention relates to the field of electric vehicles, in particular to a filter processing method and device for power battery sampling current and a battery management system. Background technique [0002] With the increasing development of the electric vehicle market, people's requirements for electric vehicles are also getting higher and higher. The power battery is the core component of the electric vehicle. Using the battery management system (Battery Management System, referred to as BMS) to manage the power battery can better exert the potential of the power battery and effectively ensure the safety of the power battery. In the management of the power battery by the BMS, the estimation of the remaining power of the battery is a key parameter for managing the power battery. At present, the method for estimating the remaining battery capacity (State of Charge, referred to as SOC) mainly adopts the ampere-hour integration method. This m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42
CPCH01M10/4257H01M10/4285H01M2010/4271Y02E60/10
Inventor 孙四军王海燕陈小江左从兵马洋洋张勋王忠民赵田丽
Owner BORGWARD AUTOMOTIVE CHINA CO LTD