公开(公告)号：US20200328487A1

公开(公告)日：2020-10-15

申请号：US16380262

申请日：2019-04-10

Applicant: GM Global Technology Operations LLC

Inventor： Raviraj U. Nayak ,  Derek W. Fultz ,  Robert D. Drexler

IPC: H01M10/6569 ,  H01M2/10 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/653 ,  H01M10/663

Abstract: A thermal management system for an on-vehicle battery includes a battery, a first thermal element, a second thermal element, a battery mounting bracket, and a vehicle body structural element. The battery mounting bracket includes a first portion attached to the vehicle body structural element, and a second portion attached to the first thermal element. The first thermal element is attached to the first end portion of the battery, and the second thermal element is attached to at least one of the second end portion, the first and second side portions, the top portion or the bottom portion of the battery. The first thermal element is composed from a first phase-change material having a first phase-change temperature and the second thermal element is composed from a second phase-change material having a second phase-change temperature, wherein the first phase-change temperature is greater than the second phase-change temperature.

公开(公告)号：US20240204284A1

公开(公告)日：2024-06-20

申请号：US18085050

申请日：2022-12-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shuonan Xu ,  Neeraj S. Shidore ,  Robert D. Schmidt ,  Steven Earl Muldoon ,  Chandra S. Namuduri ,  Robert D. Drexler ,  Antonio Duaine Ulisse

IPC: H01M10/615 ,  G01R31/389 ,  H01M10/48 ,  H01M10/63 ,  H01M10/657

CPC classification number: H01M10/615 ,  G01R31/389 ,  H01M10/486 ,  H01M10/63 ,  H01M10/657

Abstract: A device for thermal control of a battery system includes a heating control module configured to generate an alternating current (AC) heating current and heat the battery system to a desired temperature by applying the AC heating current to the battery system over a selected heating time duration. The heating control module is configured to monitor a rate of increase of a temperature of the battery system during the applying, during the heating time duration, perform a periodic impedance measurement, the periodic impedance measurement including application of a measurement signal having a selected frequency range to the battery system for a measurement period, a length of the measurement period select to minimize a difference between a desired rate of increase and the monitored rate of increase, and adjust the AC heating current during the applying based on the temperature and the impedance measurement.

公开(公告)号：US11108103B2

公开(公告)日：2021-08-31

申请号：US16380262

申请日：2019-04-10

Applicant: GM Global Technology Operations LLC

Inventor： Raviraj U. Nayak ,  Derek W. Fultz ,  Robert D. Drexler

IPC: H01M10/6569 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/625 ,  H01M10/653 ,  H01M10/663 ,  H01M10/647 ,  H01M50/20 ,  B60R16/033

Abstract: A thermal management system for an on-vehicle battery includes a battery, a first thermal element, a second thermal element, a battery mounting bracket, and a vehicle body structural element. The battery mounting bracket includes a first portion attached to the vehicle body structural element, and a second portion attached to the first thermal element. The first thermal element is attached to the first end portion of the battery, and the second thermal element is attached to at least one of the second end portion, the first and second side portions, the top portion or the bottom portion of the battery. The first thermal element is composed from a first phase-change material having a first phase-change temperature and the second thermal element is composed from a second phase-change material having a second phase-change temperature, wherein the first phase-change temperature is greater than the second phase-change temperature.