What is the estimation method of battery SOC?

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

Accurately estimate the battery SOC, on the one hand, from the requirements of electric vehicles, efficient management of the battery from the adequate play battery capacity and improve safety; on the other hand, the highly nonlinearity of the electric vehicle battery is expressed in the process of use. Accurately estimate SOC is very difficult. (1) Discharge Experiment Method The discharge test method is to continue the constant current discharge of the target battery until the cutoff voltage of the battery, multiply the time used by this discharge process in the magnitude of the discharge current, ie as the remaining capacity of the battery.

This method generally uses this method as a calibration of the battery SOC estimation or in the later maintenance of the battery, which is relatively simple and reliable without understanding the SOC value of the battery. (2) Ambarn metering method is also known as the current integral method, the safety point method, and the schedule of safety measures method are the discharge power of the battery in different currents, etc. It is a PEUKERT equation.

Ash Measurement Method Calculates the battery SOC is a relatively simple method. This method is only to pay attention to the external characteristics of the system. During the estimation process, only the power flowing and out of the battery.

(3) The open circuit voltage method is based on the change relationship between the open circuit voltage of the battery and the internal lithium ion concentration of the battery, and indirectly fits the corresponding relationship between the battery SOC. When the actual operation is performed, the battery is inexpensive to discharge at a fixed discharge magnification until the discharge is stopped, and the discharge process obtains the relationship curve between OCV and SOC according to the discharge process. (4) Neural network method neural network method is analog human brain and its neuron used to solve the new type of algorithm for nonlinear systems, and there is no need to study the internal structure of the battery.

It is only necessary to extract a large number of working characteristics from the target battery in advance. Enter the SOC value of the run from the output sample and enter it into the system established by using this Member.

CONTACT US
Just tell us your requirements, we can do more than you can imagine.
Send your inquiry
Chat with Us

Send your inquiry

Choose a different language
English
العربية
Deutsch
Español
français
italiano
日本語
한국어
Português
русский
简体中文
繁體中文
Afrikaans
አማርኛ
Azərbaycan
Беларуская
български
বাংলা
Bosanski
Català
Sugbuanon
Corsu
čeština
Cymraeg
dansk
Ελληνικά
Esperanto
Eesti
Euskara
فارسی
Suomi
Frysk
Gaeilgenah
Gàidhlig
Galego
ગુજરાતી
Hausa
Ōlelo Hawaiʻi
हिन्दी
Hmong
Hrvatski
Kreyòl ayisyen
Magyar
հայերեն
bahasa Indonesia
Igbo
Íslenska
עִברִית
Basa Jawa
ქართველი
Қазақ Тілі
ខ្មែរ
ಕನ್ನಡ
Kurdî (Kurmancî)
Кыргызча
Latin
Lëtzebuergesch
ລາວ
lietuvių
latviešu valoda‎
Malagasy
Maori
Македонски
മലയാളം
Монгол
मराठी
Bahasa Melayu
Maltese
ဗမာ
नेपाली
Nederlands
norsk
Chicheŵa
ਪੰਜਾਬੀ
Polski
پښتو
Română
سنڌي
සිංහල
Slovenčina
Slovenščina
Faasamoa
Shona
Af Soomaali
Shqip
Српски
Sesotho
Sundanese
svenska
Kiswahili
தமிழ்
తెలుగు
Точики
ภาษาไทย
Pilipino
Türkçe
Українська
اردو
O'zbek
Tiếng Việt
Xhosa
יידיש
èdè Yorùbá
Zulu
Current language:English