公开(公告)号：US20220344734A1

公开(公告)日：2022-10-27

申请号：US17715686

申请日：2022-04-07

Applicant: Analog Devices, Inc.

Inventor： Omer TANOVIC ,  Ravi Kiran RAMAN ,  Frank YAUL ,  Hemtej GULLAPALLI ,  Erfan SOLTANMOHAMMADI

IPC: H01M10/48 ,  G01R31/382 ,  G01R31/385 ,  G01R31/389 ,  G01R31/367

Abstract: One embodiment is a system for estimating an internal temperature of a battery including a first circuit for receiving a system input signal comprising a measurement of at least one observable quantity associated with the battery and outputting an average battery temperature signal based on the system input signal; and an estimator for receiving the system input signal and the average battery temperature signal and estimating an internal temperature of the battery based on the received signals, wherein the estimator comprises a lumped thermal model of the battery comprising a plurality of parameters.

公开(公告)号：US20220334185A1

公开(公告)日：2022-10-20

申请号：US17712416

申请日：2022-04-04

Applicant: Analog Devices, Inc.

Inventor： Omer TANOVIC ,  Frank YAUL ,  Hemtej GULLAPALLI

IPC: G01R31/367 ,  H02J7/00 ,  G01R31/389 ,  G01R31/392 ,  G01R31/382 ,  H01M10/48

Abstract: One embodiment is a method for estimating an internal temperature of a battery, the method comprising obtaining multiple terminal impedance measurements for the battery, wherein each of the terminal impedance measurements is obtained at a different one of a plurality of frequencies; automatically selecting one of a plurality of battery models using on a value of a parameter of the battery, wherein each of the battery models has been trained and corresponds to a different range of values for the battery parameter and wherein the value of the parameter of the battery falls within the range of values for the battery parameter corresponding to the selected one of the plurality of battery models; and applying the selected one of the plurality of battery models to the multiple terminal impedance measurements to estimate the internal temperature of the battery.

公开(公告)号：US20220206072A1

公开(公告)日：2022-06-30

申请号：US17698472

申请日：2022-03-18

Applicant: Analog Devices, Inc.

Inventor： Frank YAUL ,  Sunrita PODDAR ,  Hemtej GULLAPALLI ,  Omer TANOVIC

IPC: G01R31/367 ,  G01R31/389 ,  G01R31/378 ,  G01R31/392 ,  G01R31/382

Abstract: One embodiment is a method for estimating an internal temperature of a battery, the method comprising obtaining multiple terminal impedance measurements, wherein each of the terminal impedance measurements is taken at a different one of a plurality of frequencies; determining model parameters for a multivariable polynomial regression model; and applying the multivariable polynomial regression model to the multiple terminal impedance measurements to estimate the internal temperature of the battery.