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公开(公告)号：US20220271552A1
公开(公告)日：2022-08-25
申请号：US17184968
申请日：2021-02-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James C. Gibbs , Andrew M. Zettel , Calvin Goodman , Rajesh Nagappala
Abstract: A method for adapting a usage level of a battery pack includes measuring cell sense data for each respective battery cell using a cell sense circuit, the cell sense data including a cell voltage, current, and temperature. The method includes processing the cell sense data, for each respective battery cell, through multiple battery state functions of a controller to generate numeric cell degradation values (CDVs). The battery state functions are calibrated relationships of the cell sense data to predetermined battery fault conditions. Thereafter, the method includes automatically adapting the usage level of the battery pack during operation of the battery pack, via the controller, based on the numeric CDVs. An electric powertrain system includes the battery pack, cell sense circuit, a rotary electric machine, and a controller configured to execute the above method.
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公开(公告)号：US20210143652A1
公开(公告)日：2021-05-13
申请号：US16677056
申请日：2019-11-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Galen E. Ressler , Calvin Goodman
Abstract: A method of controlling a thermal runaway event in a battery system having first and second battery modules. The method includes detecting a thermal runaway event in the first battery module, and, in response to the detection of the thermal runaway event, determining whether an electrical current is flowing through the first battery module. The method also includes electrically decoupling the first battery module from the second battery module in response to the detection of the thermal runaway event, if the current is not flowing through the first battery module. Furthermore, the method includes electrically connecting the second battery module to an electrical load to discharge the second module through the load, if the current is determined to be flowing through the first battery module or after decoupling the first module. Discharging the second battery module is intended to control propagation of the thermal runaway event through the second module.
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公开(公告)号：US20240300381A1
公开(公告)日：2024-09-12
申请号：US18180292
申请日：2023-03-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Andrew P. Oury , Roger M. Brisbane , Goro Tamai , Mohammed Bahauddin , Galen E. Ressler , Calvin Goodman , Giles D. Bryer
IPC: B60L58/26 , B60L50/60 , H01M10/613 , H01M10/625 , H01M10/6568
CPC classification number: B60L58/26 , B60L50/66 , H01M10/613 , H01M10/625 , H01M10/6568 , H01M2220/20
Abstract: A thermal management system for a rechargeable battery pack assembly includes a conduit having an upstream end and a downstream end, the downstream end operatively connectable to an enclosure of the rechargeable battery pack assembly at a port of the rechargeable battery pack assembly. A sealing mechanism is configured to transition from a first state in which the sealing mechanism blocks flow of an applied stream of water through the conduit from the upstream end through the port, to a second state in which the sealing mechanism permits flow from the upstream end to the port and through the port into the interior cavity to cool the interior cavity.
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公开(公告)号：US20160107530A1
公开(公告)日：2016-04-21
申请号：US14519686
申请日：2014-10-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael C. Roberts , Calvin Goodman
CPC classification number: B60L11/1818 , B60L53/16 , G01K1/14 , H01R13/6683 , H01R2201/26 , Y02T10/7005 , Y02T10/7072 , Y02T90/14 , Y02T90/16
Abstract: A method and system for controlling a current flow through a charge connector to a charging system includes a charge connector including a plug connectable to a power outlet to receive a current flow, the plug including a temperature sensor to measure an interface temperature at the plug and outlet interface, the charge connector including a coupler connectable to an inlet of the charging system, where one of a control module of the charge connector and a controller of the charging system is operable to control the current flow to an adjusted level determined by one of the interface temperature and a voltage drop at the plug. A communication link may be established by a coupler element connected to an inlet element to transmit signals between the control module and connector. The charge connector may be connectable to a charging system of a plug-in electric vehicle.
Abstract translation: 用于控制通过充电连接器到充电系统的电流的方法和系统包括充电连接器，其包括可连接到电源插座以接收电流的插头，所述插头包括温度传感器以测量插头处的接口温度， 所述充电连接器包括可连接到所述充电系统的入口的耦合器，其中所述充电连接器的控制模块和所述充电系统的控制器之一可操作以将所述电流控制到由下列之一确定的调整水平： 接口温度和插头上的电压降。 可以通过连接到入口元件的耦合器元件建立通信链路，以在控制模块和连接器之间传输信号。 充电连接器可以连接到插电式电动车辆的充电系统。
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公开(公告)号：US11264815B2
公开(公告)日：2022-03-01
申请号：US16677056
申请日：2019-11-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Galen E. Ressler , Calvin Goodman
Abstract: A method of controlling a thermal runaway event in a battery system having first and second battery modules. The method includes detecting a thermal runaway event in the first battery module, and, in response to the detection of the thermal runaway event, determining whether an electrical current is flowing through the first battery module. The method also includes electrically decoupling the first battery module from the second battery module in response to the detection of the thermal runaway event, if the current is not flowing through the first battery module. Furthermore, the method includes electrically connecting the second battery module to an electrical load to discharge the second module through the load, if the current is determined to be flowing through the first battery module or after decoupling the first module. Discharging the second battery module is intended to control propagation of the thermal runaway event through the second module.
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Patent Agency Ranking
公开(公告)号：US11858354B2
公开(公告)日：2024-01-02
申请号：US17717286
申请日：2022-04-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Li-Pen John Ho , Calvin Goodman , Rajesh Nagappala
CPC classification number: B60L3/04 , B60L3/0046 , H01H39/006 , H02H7/18 , H02J7/0031 , H01H2039/008
Abstract: An emergency disconnect circuit for use with a high-voltage (HV) bus of a battery electric system, e.g., aboard a mobile system, includes a pyrotechnic switch and a manual switch. The pyrotechnic switch configured irreversibly opens in response to an electronic triggering signal to disconnect an HV battery pack from the HV bus in a first manner. The manual switch is arranged on a low-voltage (LV) bus in series with and between the pyrotechnic switch and an LV power supply. Transition of the manual switch from an open position to a closed position connects the LV power supply to the pyrotechnic switch. This causes the LV power supply to discharge the triggering signal to the pyrotechnic switch. When used aboard a mobile system, an electronic monitoring unit generates the triggering signal in a second manner in response to a threshold impact event.
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公开(公告)号：US11817596B2
公开(公告)日：2023-11-14
申请号：US17167133
申请日：2021-02-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Calvin Goodman , Li-pen J. Ho
IPC: H01M50/298 , B60L53/00 , H01M50/204 , H01M50/249 , H01M10/48 , H01M50/296 , H01M50/583 , H01M10/613 , H01M10/6568 , H01M10/625 , B60L58/26 , H01M50/581
CPC classification number: H01M50/298 , B60L53/00 , B60L58/26 , H01M10/482 , H01M10/613 , H01M10/625 , H01M10/6568 , H01M50/204 , H01M50/249 , H01M50/296 , H01M50/581 , H01M50/583 , H01M2200/103 , H01M2220/20
Abstract: A rechargeable energy storage includes a battery pack having a plurality of battery modules between a negative terminal and a positive terminal. A backup network is electrically connected between the negative terminal and the positive terminal. The backup network includes a first diode and a second diode. A bypass junction located between a first portion of the battery pack and a second portion of the battery pack. The bypass junction electrically connects the battery pack and the backup network. The backup network is configured such that current flow is directed along a first pathway when open circuit state occurs in the first portion of the battery pack, and the current flow is directed along a second pathway when the open circuit state occurs in the second portion of the battery pack. The backup network enables powering of a designated load and/or a designated function during the open circuit state.
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公开(公告)号：US20220097562A1
公开(公告)日：2022-03-31
申请号：US17037937
申请日：2020-09-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Bin Li , Calvin Goodman
IPC: B60L58/18 , H01M10/42 , H01M10/613 , H01M10/625 , H01M10/633 , H01M2/10 , B60L58/26 , B60Q9/00 , B60L15/20
Abstract: A method to manage thermal propagation in an energy storage device of a battery electric vehicle is provided. The method includes operating the battery electric vehicle with a plurality of distinct battery cell module groups each separately providing electrical power to the battery electric vehicle. The method further includes, within a computerized battery cell module groups controller, monitoring conditions within the distinct battery cell module groups, determining occurrence of an abnormal event within one of a plurality of the distinct battery cell module groups based upon the monitored conditions, and controlling operation of the battery electric vehicle based upon the determined occurrence of the abnormal event.
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公开(公告)号：US11967851B2
公开(公告)日：2024-04-23
申请号：US17184968
申请日：2021-02-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James C. Gibbs , Andrew M. Zettel , Calvin Goodman , Rajesh Nagappala
CPC classification number: H02J7/00712 , B60L50/51 , B60L50/66 , B60L58/12 , H02J7/0013 , H02J7/0029 , H02J7/0048 , H02J7/005 , H02J7/007194 , B60L2210/40 , B60L2240/545 , B60L2240/547 , B60L2240/549
Abstract: A method for adapting a usage level of a battery pack includes measuring cell sense data for each respective battery cell using a cell sense circuit, the cell sense data including a cell voltage, current, and temperature. The method includes processing the cell sense data, for each respective battery cell, through multiple battery state functions of a controller to generate numeric cell degradation values (CDVs). The battery state functions are calibrated relationships of the cell sense data to predetermined battery fault conditions. Thereafter, the method includes automatically adapting the usage level of the battery pack during operation of the battery pack, via the controller, based on the numeric CDVs. An electric powertrain system includes the battery pack, cell sense circuit, a rotary electric machine, and a controller configured to execute the above method.
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10.发明授权公开(公告)号：US11919419B2
公开(公告)日：2024-03-05
申请号：US17037937
申请日：2020-09-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Bin Li , Calvin Goodman
IPC: B60L58/18 , B60L15/20 , B60L58/26 , B60Q9/00 , H01M10/42 , H01M10/61 , H01M10/613 , H01M10/625 , H01M10/633 , H01M50/20
CPC classification number: B60L58/18 , B60L15/20 , B60L58/26 , B60Q9/00 , H01M10/4257 , H01M10/613 , H01M10/625 , H01M10/633 , H01M50/20 , H01M2010/4271 , H01M2010/4278 , H01M2220/20
Abstract: A method to manage thermal propagation in an energy storage device of a battery electric vehicle is provided. The method includes operating the battery electric vehicle with a plurality of distinct battery cell module groups each separately providing electrical power to the battery electric vehicle. The method further includes, within a computerized battery cell module groups controller, monitoring conditions within the distinct battery cell module groups, determining occurrence of an abnormal event within one of a plurality of the distinct battery cell module groups based upon the monitored conditions, and controlling operation of the battery electric vehicle based upon the determined occurrence of the abnormal event.
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