The invention relates to a method for estimating or predicting an internal battery state of at least one battery unit (203) within an electric energy storage system (201), such as in a vehicle (200), the method comprising:- obtaining operational data of the electric energy storage system relating to operating conditions of the electric energy storage system,- feeding the obtained operational data to a non-linear state observer adapted to estimate and/or predict the internal battery state of the at least one battery unit in a series of time steps, such that an observer error of the non-linear state observer converges towards zero, or towards a value close to zero,- based on at least the obtained operational data, estimating or predicting the internal battery state using the non-linear state observer.The non-linear state observer is a switched multi-gain observer switching between at least two different static observer gains, wherein the observer gain to be used is selected based on a predicted or estimated value of the internal battery state as determined by the nonlinear state observer.
A METHOD FOR ESTIMATING OR PREDICTING AN INTERNAL BATTERY STATE OF A BATTERY UNIT
VERFAHREN ZUR SCHÄTZUNG ODER VORHERSAGE EINES INTERNEN BATTERIEZUSTANDS EINER BATTERIEEINHEIT
PROCÉDÉ PERMETTANT D'ESTIMER OU DE PRÉDIRE L'ÉTAT INTERNE D'UNE BATTERIE D'UNE UNITÉ DE BATTERIE
13.12.2023
Patent
Elektronische Ressource
Englisch
Method for estimating or predicting an internal battery state of a battery unit
Europäisches Patentamt | 2025
|METHOD FOR ESTIMATING OR PREDICTING AN INTERNAL BATTERY STATE OF A BATTERY UNIT
Europäisches Patentamt | 2022
|A method for estimating or predicting an internal battery state of a battery unit
Europäisches Patentamt | 2022
|DEVICE FOR ESTIMATING INTERNAL STATE OF BATTERY, AND METHOD FOR ESTIMATING INTERNAL STATE OF BATTERY
Europäisches Patentamt | 2020
|Battery apparatus and method of estimating battery state
Europäisches Patentamt | 2022
|