公开(公告)号：US20250067811A1

公开(公告)日：2025-02-27

申请号：US18778556

申请日：2024-07-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hirofumi HAZAMA ,  Kouichi YOKOYAMA ,  Kumiko NODA ,  Mina NISHIGAKI

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

Abstract: A battery evaluation system according to the present disclosure includes: an extraction unit configured to extract pieces of information about a plurality of evaluation items from received information about a secondary battery; an evaluation unit configured to evaluate each of the extracted pieces of information about the plurality of evaluation items and perform a comprehensive evaluation of the secondary battery based on a plurality of results of the evaluation and a plurality of weight coefficients corresponding to the plurality of results of the evaluation; and an output unit configured to output at least a result of the comprehensive evaluation of the secondary battery, in which the evaluation unit evaluates a temperature frequency distribution of the secondary battery based on a degree of deviation between the temperature frequency distribution of the secondary battery and a standard temperature frequency distribution of the secondary battery.

公开(公告)号：US20250052832A1

公开(公告)日：2025-02-13

申请号：US18800115

申请日：2024-08-11

Applicant: EVE ENERGY CO., LTD.

Inventor： Yapeng DONG ,  Xiaobo DENG ,  Wei LI ,  Hengxi ZHAO ,  Chenxiao JIA ,  Zhishen TANG ,  Jiaman LI ,  Yuanyuan ZHENG ,  Yuhong XU

IPC: G01R31/396 ,  G01R31/367 ,  G01R31/382

Abstract: A method includes: detecting initial capacities of multiple to-be-grouped battery cells, and grouping, among the to-be-grouped battery cells, battery cells to obtain a first battery pack; detecting an initial SOC of each battery cell in the first battery pack, and grouping the battery cells in the first battery pack to obtain a second battery pack; simulating a charging and discharging process of the second battery pack to obtain charging data and discharging data corresponding to the battery cell; and determining a grouping efficiency of the second battery pack based on the charging data, the discharging data, and a nominal capacity.

公开(公告)号：US20250052824A1

公开(公告)日：2025-02-13

申请号：US18925994

申请日：2024-10-24

Applicant: Nuvoton Technology Corporation Japan

Inventor： Susumu YOSHIKAWA ,  Hitoshi KOBAYASHI ,  Keiichi FUJII ,  Akira KAWABE

IPC: G01R31/382 ,  G01R31/371 ,  G06T7/70 ,  H01M10/42

Abstract: A BMS for managing a battery assembly includes: a BMU that manages the battery assembly; a plurality of CMUs that monitor the battery assembly; and a setting circuit. The BMU wirelessly transmits, to the plurality of CMUs, a first signal including identification information of one CMU among the plurality of CMUs. Each of the plurality of CMUs includes identification information identifying itself, receives the first signal transmitted by the BMU, and outputs a second signal on condition that the first signal received matches the identification information. The setting circuit generates and outputs correspondence information that associates (i) position information of the one CMU, among the plurality of CMUs, that output the second signal with (ii) the identification information included in the first signal transmitted by the BMU.

公开(公告)号：US12203992B2

公开(公告)日：2025-01-21

申请号：US18160686

申请日：2023-01-27

Applicant: NXP USA, INC.

Inventor： Guillaume Mouret ,  Tristan Bosvieux ,  Laurent Bordes

IPC: G01R31/36 ,  G01R31/382 ,  G01R31/396 ,  G01R35/00

Abstract: The present disclosure relates to a transceiver (100) comprising a first and second terminal, a signal generation unit a signal generation unit (110) for generating a differential output voltage (Vout) between the terminals, a sensor unit (112) configured to measure an electric current (Iout) when flowing through one of the terminals, and a control unit (114) for controlling the signal generation unit, wherein the control unit is configured to control the signal generation unit during a calibration phase to generate a predetermined differential output voltage reference pattern (140), wherein the sensor unit is configured to measure a calibration current unit during the calibration phase, and wherein the control unit is configured to calibrate the signal generation unit depending on the calibration current. The present disclosure also relates to a method for the transceiver.

公开(公告)号：US20250020707A1

公开(公告)日：2025-01-16

申请号：US18758103

申请日：2024-06-28

Applicant: VOLVO TRUCK CORPORATION

Inventor： Emil LIDSTRÖM

IPC: G01R27/08 ,  G01R31/382 ,  H01M10/48 ,  H01M50/502 ,  H01M50/569

Abstract: A computer system comprising processing circuitry is presented. The processing circuitry is configured to obtain resistance data of a plurality of inter-cell connectors of a battery pack comprising a plurality of battery cells, and obtain inter-cell voltage drops across the plurality of inter-cell connectors. The processing circuitry is further configured to determine inter-cell currents based on the resistance data and associated inter-cell voltage drops; and determine a battery pack current estimate of a battery pack current of the battery pack based on the inter-cell currents.

公开(公告)号：US12199317B2

公开(公告)日：2025-01-14

申请号：US17530516

申请日：2021-11-19

Applicant: Robert Bosch GmbH

Inventor： Berengar Krieg ,  Chrysanthos Tzivanopoulos ,  Johannes Swoboda ,  Thomas Schaedlich

IPC: H01M50/569 ,  G01R31/371 ,  G01R31/382 ,  H01M10/48 ,  H02J7/00

Abstract: A battery system having a battery pack with a negative pole, a positive pole and a battery cell, a coupling network having a first negative terminal and a first positive terminal, a pack voltage divider, and a coupling voltage divider. The first positive terminal is connectable to the positive pole via a switch. Optionally, the first negative terminal is connectable to the negative pole via a switch. The pack voltage divider includes a two resistors connected between the positive pole and a first reference point. A negative pack measurement resistor and a negative sub-pack measurement resistor are dis-connectable from the negative pole or the first reference point via a switch. A positive coupling measurement resistor and a positive sub-coupling measurement resistor are connected between the first positive terminal and the first reference point. Two resistors are connected between the first negative terminal and the first reference point.

公开(公告)号：US12188988B2

公开(公告)日：2025-01-07

申请号：US16702930

申请日：2019-12-04

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION ,  CLARIOS GERMANY GmbH & Co. KGaA

Inventor： Young-Kug Lee ,  Ki-Seon Ryu ,  Jae-Eun Jin ,  Jong-Dae Kim ,  Ingo Koch ,  Jorn Albers

IPC: G01R31/388 ,  B60L3/12 ,  B60L58/10 ,  B60L58/12 ,  B60L58/16 ,  G01R31/367 ,  G01R31/382 ,  G01R31/385 ,  G01R31/392

Abstract: An apparatus for estimating a battery state of charge includes a computer that determines a lifespan of a battery by creating test conditions for the battery by reflecting predetermined driving information of a vehicle and then performing the test conditions; and a tester that performs charging according to predetermined charging conditions and discharging according to predetermined discharging conditions on the battery in accordance with the test conditions.

公开(公告)号：US12179776B2

公开(公告)日：2024-12-31

申请号：US17405867

申请日：2021-08-18

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Hee Yun Lee

IPC: B60W40/10 ,  B60W40/04 ,  G01R31/382 ,  G01S19/01

Abstract: An apparatus of determining an optimal velocity of a vehicle, may include an information receiving unit configured to receive and provide vehicle traveling information and traveling environment information which are state variables representing vehicle states required to determine a target velocity for optimizing vehicle fuel economy; and an optimal velocity determination unit configured to determine the target velocity in accordance with a vehicle traveling environment by use of a state variable and reward estimation model and a Q table having values according to the state variables and a control input, from the vehicle traveling information and the traveling environment information provided by the information receiving unit, and a method of determining an optimal velocity of a vehicle.

公开(公告)号：US20240429469A1

公开(公告)日：2024-12-26

申请号：US18823772

申请日：2024-09-04

Applicant: REON Technology, Inc.

Inventor： Tiegeng Ren ,  Xuanhang Zhang

IPC: H01M10/42 ,  G01R31/367 ,  G01R31/382 ,  H01M10/48

Abstract: A processor-implemented method for battery management is disclosed. A plurality of battery units can be accessed. Each battery unit can contain one or more battery cells and can be configured using programmable switches. The battery units can be monitored by battery sensors and scanned to collect battery unit information. The battery unit information can be stored in local caches located on each unit. The battery unit information can be reported from the local caches to a master controller, which stores the information in a system cache. The reporting can be triggered by a change in the battery unit information. The battery information can be analyzed and used to determine a battery unit metric stored in a register map. Additional battery unit information can be analyzed and compared to the battery unit metric. Based on changes in the battery unit information, the master controller can modify the battery unit configuration.

公开(公告)号：US20240421370A1

公开(公告)日：2024-12-19

申请号：US18821775

申请日：2024-08-30

Applicant: Lyten, Inc.

Inventor： George Clayton Gibbs ,  Sung H. Lim ,  Chiapu Chang ,  Parth K. Patel ,  Beomseok Kim

IPC: H01M10/48 ,  B60L3/00 ,  B60L50/64 ,  G01R31/382 ,  H01M50/30

Abstract: A battery safety system includes a flow valve and a sensing device. The flow valve is disposed on a housing of the battery and includes a first valve that is embedded inside the housing and a second valve that intersects the housing. The first valve includes a cavity through which analytes released upon electrochemical reactions within the battery flow towards the second valve. The second valve extends through the housing to the outside, and defines an opening through which the released analytes exit the housing. The sensing device is disposed within the cavity of the first valve of the valve and is situated in a manner to be in fluidic contact with the released analytes as they flow from the inside of the battery to the outside. In some aspects, the battery safety system can detect a minute presence of one or more analytes.