公开(公告)号：US20230280402A1

公开(公告)日：2023-09-07

申请号：US18113626

申请日：2023-02-24

Applicant: MEDIATEK INC.

Inventor： Jui-Chi Wu ,  Jia-You Chuang

IPC: G01R31/36 ,  H01M10/42 ,  G01R31/367 ,  G01R31/371

CPC classification number: G01R31/3648 ,  G01R31/367 ,  G01R31/371 ,  H01M10/425 ,  H01M2010/4278

Abstract: The present invention provides a multi-battery system including a plurality of devices and a processing circuit. Each of the plurality of devices includes a battery, a measurement circuit and a communication interface, wherein the measurement circuit is configured to measure the battery to generate battery information, and the communication interface is configured to transmit the battery information. The processing circuit is configured to receive the plurality of battery information of the plurality of devices, and use a universal gauge master algorithm to process the battery information of the plurality of devices to generate a plurality of gauge results, respectively.

公开(公告)号：US11906596B2

公开(公告)日：2024-02-20

申请号：US17547181

申请日：2021-12-09

Applicant: MediaTek Inc.

Inventor： Chi Cheng Liao ,  Jia-You Chuang ,  Jui-Chi Wu

IPC: G01R31/392 ,  G01R31/367

CPC classification number: G01R31/392 ,  G01R31/367

Abstract: A device estimates the health of a battery by first collecting measurements of the battery over multiple charging and discharging cycles. Scores are assigned to the measurements according to scoring rules stored in a memory of the device. The device calculates battery based on an average of the measurements, where each measurement has an assigned score greater than a threshold.

公开(公告)号：US20170227607A1

公开(公告)日：2017-08-10

申请号：US15285497

申请日：2016-10-05

Applicant: MEDIATEK INC.

Inventor： Jui-Chi Wu ,  Jia-You Chuang ,  Wan-Yi Horng ,  Jui Wang

IPC: G01R31/36 ,  H01M6/50 ,  H01M10/42

CPC classification number: G01R31/387 ,  G01R31/367 ,  G01R31/371 ,  G01R31/389 ,  G01R31/392 ,  H01M6/5083 ,  H01M10/4285 ,  H01M10/48 ,  H02J7/0036 ,  H02J7/0047 ,  H02J2007/005

Abstract: Methods are provided to be able to efficiently and precisely estimate/predict an available capacity of a battery. One method is arranged to estimate/predict the available capacity of the battery according to a first battery percentage result, a second battery percentage result, and a calculated power when the battery is being operated or used within a specific operating range distinct from a normal operating range. Another method is arranged to estimate the available capacity by measuring battery's internal resistance and referencing a precise battery aging model.

公开(公告)号：US20240322274A1

公开(公告)日：2024-09-26

申请号：US18124572

申请日：2023-03-21

Applicant: MEDIATEK INC.

Inventor： Jia-You Chuang ,  Jui-Chi Wu ,  Chi-Cheng Liao

IPC: H01M10/48 ,  G01R31/36 ,  H01M50/204

CPC classification number: H01M10/482 ,  G01R31/36 ,  H01M50/204 ,  H01M2220/30

Abstract: A method for determining a State of Charge of a battery module with a first battery having a first rated capacity and a second battery having a second rated capacity including determining an adjusted rated capacity according to at least one of property data of the first battery, property data of the second battery and a system requirement, wherein the adjusted rated capacity is smaller than a summation of the first rated capacity and the second rated capacity; and determining a State of Charge (SoC) which indicates a level of charge of the battery module relative to a total capacity of the battery module according to the level of charge of the battery module and the adjusted rated capacity.

公开(公告)号：US10942221B2

公开(公告)日：2021-03-09

申请号：US15713696

申请日：2017-09-24

Applicant: MEDIATEK INC.

Inventor： Jui-Chi Wu ,  Jia-You Chuang ,  Tsung-Ju Tsai

IPC: A61N1/00 ,  G01R31/387 ,  H01M10/48 ,  G01R31/374 ,  G01R31/389 ,  G01R31/3842 ,  H02J7/00 ,  G01R31/367 ,  G01R31/392 ,  G01R31/371

Abstract: A method for estimating a battery power percentage of a battery includes: performing a first fuel gauge operation upon the battery; and using the first fuel gauge operation to generate the battery power percentage of the battery by referring to information measured by a second fuel gauge operation performed upon the battery wherein the second fuel gauge operation is different from the first fuel gauge operation.

公开(公告)号：US20180252775A1

公开(公告)日：2018-09-06

申请号：US15447128

申请日：2017-03-02

Applicant: MEDIATEK INC.

Inventor： Jui-Chi Wu ,  Jia-You Chuang ,  Wan-Yi Horng ,  Jui Wang

IPC: G01R31/36 ,  G01R35/00 ,  H01M10/48

CPC classification number: G01R31/367 ,  G01R31/3828 ,  H01M10/48 ,  H01M2220/30

Abstract: A method for calibrating a coulomb counting based state-of-charge (SOC) estimation of a battery cell includes: determining whether the battery cell is in a specific charge state; calibrating an initial value for use in the coulomb counting based SOC estimation according to an open circuit voltage (OCV)-based SOC of the battery cell if the battery cell is not in the specific charge state; calibrating the initial value according to a predetermined value if the battery cell is in the specific charge state; and applying the calibrated initial value to the coulomb counting based SOC estimation and restarting an integration of the coulomb counting based SOC estimation based on the calibrated initial value.

公开(公告)号：US20180100899A1

公开(公告)日：2018-04-12

申请号：US15287745

申请日：2016-10-07

Applicant: MEDIATEK INC.

Inventor： Jui-Chi Wu ,  Jia-You Chuang

IPC: G01R31/36

CPC classification number: G01R31/367 ,  G01R31/374

Abstract: A state-of-charge (SOC) indication method includes: determining estimated values of a SOC of a battery cell according to at least information regarding a characteristics measurement of the battery cell; performing a smooth and monotonic processing on the estimated values of the SOC to process unusual change in the estimated values, so as to generate processed values of the SOC; remapping the processed values of the SOC according to a remapping threshold setting to obtain remapped values of the SOC; and indicating the SOC of the battery cell with the remapped values.

公开(公告)号：US20170227609A1

公开(公告)日：2017-08-10

申请号：US15287720

申请日：2016-10-06

Applicant: MEDIATEK INC.

Inventor： Jui-Chi Wu ,  Jia-You Chuang ,  Wan-Yi Horng ,  Jui Wang

IPC: G01R31/36

CPC classification number: G01R31/387 ,  G01R31/367 ,  G01R31/371 ,  G01R31/389 ,  G01R31/392 ,  H01M6/5083 ,  H01M10/4285 ,  H01M10/48 ,  H02J7/0036 ,  H02J7/0047 ,  H02J2007/005

Abstract: A method capable of accurately estimating a power percentage of a battery includes: performing a first fuel gauge operation to measure a power percentage of the battery to generate first information; performing a second fuel gauge operation to measure the power percentage of the battery to generate second information, the first fuel gauge operation being different from the second fuel gauge operation; and, dynamically determining one among at least the first percentage and the second percentage as the power percentage of the battery.

公开(公告)号：US20220206079A1

公开(公告)日：2022-06-30

申请号：US17547181

申请日：2021-12-09

Applicant: MediaTek Inc.

Inventor： Chi Cheng Liao ,  Jia-You Chuang ,  Jui-Chi Wu

IPC: G01R31/392 ,  G01R31/367

Abstract: A device estimates the health of a battery by first collecting measurements of the battery over multiple charging and discharging cycles. Scores are assigned to the measurements according to scoring rules stored in a memory of the device. The device calculates battery based on an average of the measurements, where each measurement has an assigned score greater than a threshold.

公开(公告)号：US10670662B2

公开(公告)日：2020-06-02

申请号：US15447128

申请日：2017-03-02

Applicant: MEDIATEK INC.

Inventor： Jui-Chi Wu ,  Jia-You Chuang ,  Wan-Yi Horng ,  Jui Wang

IPC: G01R31/367 ,  H01M10/48 ,  G01R31/3828

Abstract: A method for calibrating a coulomb counting based state-of-charge (SOC) estimation of a battery cell includes: determining whether the battery cell is in a specific charge state; calibrating an initial value for use in the coulomb counting based SOC estimation according to an open circuit voltage (OCV)-based SOC of the battery cell if the battery cell is not in the specific charge state; calibrating the initial value according to a predetermined value if the battery cell is in the specific charge state; and applying the calibrated initial value to the coulomb counting based SOC estimation and restarting an integration of the coulomb counting based SOC estimation based on the calibrated initial value.