公开(公告)号：US20230243082A1

公开(公告)日：2023-08-03

申请号：US18131491

申请日：2023-04-06

申请人： Samsung Electronics Co., Ltd.

发明人： Kyungwoo LEE ,  Taedong Goh ,  Daehyun Kim ,  Jinbong Lee ,  Jihoon Jung

IPC分类号： D06F34/08 ,  H02J7/00 ,  H02J50/00 ,  H02J50/10 ,  D06F34/05 ,  D06F34/10 ,  D06F34/28 ,  D06F34/22 ,  D06F34/26 ,  D06F34/18 ,  G01R19/165 ,  G01R13/02

CPC分类号： D06F34/08 ,  H02J7/0047 ,  H02J7/007 ,  H02J50/001 ,  H02J50/10 ,  D06F34/05 ,  D06F34/10 ,  D06F34/28 ,  D06F34/22 ,  D06F34/26 ,  D06F34/18 ,  G01R19/16566 ,  G01R13/0281 ,  D06F2103/32

摘要： According to various embodiments, a sensor device may comprise: an energy harvester configured to generate electrical energy; an energy storage circuit configured to store the generated electrical energy; a monitoring circuit; a sensor; a communication circuit; and at least one processor, wherein the at least one processor is configured to identify a voltage of the energy storage circuit through the monitoring circuit, operate in a first mode in response to identification that the voltage is equal to or lower than a threshold value, operate in a second mode which consumes more power than the first mode, in response to identification that the voltage exceeds the threshold value, acquire a sensing value through the sensor according to a sensing scheme corresponding to one of the first mode and the second mode, and control the communication circuit to transmit the voltage and the sensing value to another electronic device according to the communication scheme corresponding to one of the first mode and the second mode. Various other embodiments are possible.

公开(公告)号：US11581585B2

公开(公告)日：2023-02-14

申请号：US17196094

申请日：2021-03-09

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Manohar Gottapu ,  Arijit Guha ,  Shashishekara Parampalli Adiga ,  Daehyun Kim ,  Taedong Goh ,  Youngho Ryu

IPC分类号： H01M10/42 ,  H01M10/48 ,  G01R31/3842 ,  H01M10/44 ,  G01R31/367

摘要： Methods and electronic devices for estimating state of charge (SOC) of a battery pack. Various embodiments provide a model comprising an (electrical) equivalent circuit model, an electrochemical (thermal) model, and a (convective) thermal model. The model estimates parameters pertaining to each cell of the battery pack individually, and determines the variations in the values of the parameters among each of the cells of the battery pack. The parameters include capacity, temperature current, voltage, and SOC. The parameters are computed based on at current drawn by the battery pack, electrochemical parameters, thermal parameters, and cell internal and connection resistances of the individual cells. Various embodiments compute battery pack uptime, chargeable capacity of the battery pack and SOC of the battery pack, based on the values of the parameters.