公开(公告)号：US20220021044A1

公开(公告)日：2022-01-20

申请号：US17203863

申请日：2021-03-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen KONG ,  Dave G. RICH ,  Lyall K. WINGER ,  Meiyuan WU ,  Jingyuan LIU ,  Haijing LIU

IPC: H01M10/63 ,  H02J7/00 ,  H01M10/615 ,  H01M10/625

Abstract: A thermal device comprises a first layer of a non-metallic material that is a good conductor of heat and electricity, that includes a first terminal and a second terminal, and that has a first surface and a second surface; a metallic material disposed on the first surface of the first layer; a first plastic layer disposed on the metallic material; and a second plastic layer disposed on the second surface of the first layer. The first plastic layer and the second plastic layer include a plastic material that is a good conductor of heat.

公开(公告)号：US20200280197A1

公开(公告)日：2020-09-03

申请号：US16290602

申请日：2019-03-01

Applicant: GM Global Technology Operations LLC

Inventor： Lyall K. WINGER ,  Dave G. RICH ,  Suresh GOPALAKRISHNAN ,  Chandra S. NAMUDURI

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/48 ,  B60L53/00 ,  B60L3/04

Abstract: A battery includes: a first terminal; a second terminal; a plurality of individually housed batteries; a plurality of switches configured to connect ones of the individually housed batteries to and from ones of the first and second terminals; and a switch control module configured to: at a frequency, vary a voltage applied to a gate of one of the switches, the one of the switches configured to connect at least one of the individually housed batteries to one of the first and second terminals; and diagnose whether a fault is present in the one of the switches based on a voltage across the one of the switches.

公开(公告)号：US20240014470A1

公开(公告)日：2024-01-11

申请号：US17886975

申请日：2022-08-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen KONG ,  Jingyuan LIU ,  Haijing LIU ,  Dave G. RICH ,  Christian FAU

IPC: H01M16/00

CPC classification number: H01M16/003 ,  H01M4/131

Abstract: A battery cell comprises C electrodes each including a first current collector, first and second capacitive layers, and first and second active material layers. The first and second capacitive layers and the first and second active material layers are arranged on the first current collector. E anode electrodes include a second current collector and third and fourth active material layers arranged on the second current collector. E and C are integers greater than zero.

公开(公告)号：US20220190394A1

公开(公告)日：2022-06-16

申请号：US17119824

申请日：2020-12-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dorel M. SALA ,  Mahmoud ABD ELHAMID ,  Dave G. RICH

IPC: H01M10/42 ,  H01M10/08 ,  H01M10/02 ,  H01M10/12

Abstract: The present disclosure pertains to motion-generating particles for desulfation of lead-acid batteries, lead-acid batteries including such motion-generating particles, and methods of making and using the same. For example, the present disclosure provides a lead-acid battery including one or more electroactive plates disposed within a casing; an electrolyte disposed within the casing and surrounding the electroactive plates; a plurality of ferromagnetic particles disposed with the electrolyte within the casing; and one or more electromagnets. The one or more electromagnets may be configured to direct a magnetic field towards the electrolyte to selectively cause movement of the plurality of ferromagnetic particles so as to agitate the electrolyte.

公开(公告)号：US20200276966A1

公开(公告)日：2020-09-03

申请号：US16290570

申请日：2019-03-01

Applicant: GM Global Technology Operations LLC

Inventor： Dave G. RICH ,  Lyall K. Winger ,  Saad Hasan ,  Gary W. Gantt, JR. ,  Mahmoud Abd Elhamid

IPC: B60W20/10 ,  H02J7/14 ,  H02J7/34 ,  H02J7/16

Abstract: A battery control system includes first and second batteries each including first and second terminals configured to output a first voltage, third and fourth terminals configured to output a second voltage, a plurality of individually housed batteries, and a plurality of switches configured to connect ones of the individually housed batteries to and from ones of the first, second, third, and fourth terminals. A control module is configured to selectively provide the first voltage from either one of the first battery and the second battery to a first set of loads and selectively provide the second voltage from either one of the first battery and the second battery to a second set of loads.

公开(公告)号：US20200153050A1

公开(公告)日：2020-05-14

申请号：US16183803

申请日：2018-11-08

Applicant: GM Global Technology Operations LLC

Inventor： Lyall K. WINGER ,  Dave G. RICH ,  Saad HASAN

IPC: H01M10/42 ,  B60L11/18 ,  B60K6/28

Abstract: A battery control system includes a battery comprising: first and second terminals; third and fourth terminals; a plurality of individually housed batteries; and a plurality of switches configured to connect ones of the batteries to and from ones of the first, second, third, and fourth terminals. A mode module is configured to set a mode of operation based on at least one of a plurality of present operating parameters. A switch control module is configured to control the plurality of switches based on the mode of operation.

公开(公告)号：US20240270121A1

公开(公告)日：2024-08-15

申请号：US18359411

申请日：2023-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jingyuan LIU ,  Qili SU ,  Dave G. RICH ,  Si CHEN ,  James MORRISON ,  Dewen KONG ,  Haijing LIU

IPC: B60L58/22 ,  B60L58/12 ,  B60L58/19

CPC classification number: B60L58/22 ,  B60L58/12 ,  B60L58/19 ,  B60L2240/547

Abstract: A state of charge (SOC) balancing system includes: first and second batteries; first and second capacitors; an SOC module configured to determine first and second SOCs of the first and second batteries, respectively; and a switching module configured to selectively, when the first SOC is greater than the second SOC: (i) electrically connect the first and second capacitors in parallel; (ii) electrically connect the first battery to the first and second capacitors while the first and second capacitors are electrically connected in parallel; (iii) electrically disconnect the first battery from the first and second capacitors; (iv) electrically connect the first and second capacitors in series; (v) electrically connect the second battery to the first and second capacitors while the first and second capacitors are electrically connected in series; and (vi) electrically disconnect the second battery from the first and second capacitors.

公开(公告)号：US20240059182A1

公开(公告)日：2024-02-22

申请号：US17986382

申请日：2022-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dave G. RICH ,  Aaron B. BLOOM ,  Wing-Fai HA ,  Dewen KONG ,  Jingyuan LIU

IPC: B60L58/14 ,  B60L58/15 ,  B60L58/16 ,  B60L58/24 ,  B60L58/18

CPC classification number: B60L58/14 ,  B60L58/15 ,  B60L58/16 ,  B60L58/24 ,  B60L58/18

Abstract: A battery system for a vehicle includes: a first positive terminal, a second positive terminal, and a negative terminal; switches; at least two battery modules each including at least three strings of battery cells that are configured to, at different times be: connected in series and to the first positive terminal via first ones of the switches; connected in parallel and to the second positive terminal via second ones of the switches; and disconnected from both of the first and second positive terminals; and a switch control module configured to, based on a derated state of the vehicle, adjust at least one of an upper limit for charging of the battery strings and a lower limit for discharging of the battery strings.

公开(公告)号：US20240012063A1

公开(公告)日：2024-01-11

申请号：US17889440

申请日：2022-08-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jingyuan LIU ,  Dave G. RICH ,  Manjit SWAMI ,  Charles W. WAMPLER, II ,  Dewen KONG

IPC: G01R31/392 ,  H02J7/00 ,  G01R31/3835 ,  B60L58/12 ,  B60L58/16 ,  B60L53/00

CPC classification number: G01R31/392 ,  H02J7/0048 ,  H02J7/005 ,  H02J7/00712 ,  H02J7/0068 ,  G01R31/3835 ,  B60L58/12 ,  B60L58/16 ,  B60L53/00

Abstract: A state of health (SOH) based control system includes: a memory configured to store an algorithm including instructions for determining a SOH of a power source; and a control module configured to receive a voltage signal indicating a voltage of the power source and execute the instructions. The instructions include: determining a state of charge (SOC) of the power source; generating a differential signal based on a change in the voltage and a change in the state of charge; determining an inflection point and an end of charge point of the differential signal; determining the SOH of the power source based on the inflection point and the end of charge point; and performing at least one of a control operation or a countermeasure based on the SOH.

公开(公告)号：US20230179001A1

公开(公告)日：2023-06-08

申请号：US17575846

申请日：2022-01-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-mo KANG ,  Charles W. WAMPLER, II ,  Dave G. RICH

IPC: H02J7/00 ,  G01R31/382 ,  H01M10/48

CPC classification number: H02J7/0014 ,  G01R31/382 ,  H01M10/482 ,  H02J7/0048 ,  H02J7/0024 ,  H01M2220/20

Abstract: A battery system includes: two battery modules, each including three strings of battery cells that are configured to, at different times be: connected in series and to a first positive terminal via first ones of switches; connected in parallel and to a second positive terminal via second ones of the switches; and disconnected from both of the first and second positive terminals; and a switch control module configured to: determine state of charges (SOCs) of the strings, respectively; determine periods of phases, respectively, based on the SOCs; determine first periods for connecting ones of the strings in parallel; divide one of the phases into N equal length periods; selectively decrease N; when a number of the first periods that end closest to one of N period endings is at least a predetermined value, adjust the first periods to the respective closest ones of the N period endings.