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1.发明公开公开(公告)号：US20230286388A1
公开(公告)日：2023-09-14
申请号：US17692480
申请日：2022-03-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rashmi Prasad , Robert J. Heydel , Andrew K. Chandler , Shubham V. Shedge , Chandra S. Namuduri , Eleni C. Pitses
CPC classification number: B60L3/04 , H01H39/006 , B60L3/0046 , B60L58/14 , B60L58/15
Abstract: A battery electric system for a motor vehicle or another electrified system includes a battery pack connected to a direct current voltage bus, and having positive and negative battery terminals, a main pyrotechnic fuse (“pyro fuse”), a high-voltage (HV) component connected to the bus via an HV channel, a current sensing element connected to the HV component on the HV channel, and a control system configured to selectively disconnect the battery pack from the bus by transmitting a voltage signal to the main pyro fuse when a measured current value from the current sensor is indicative of a short-circuit fault. A channel switch may be connected to or integral with the current sensing element, and configured to disconnect the HV component from the bus by opening in response to the measured current value.
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公开(公告)号：US20200313260A1
公开(公告)日：2020-10-01
申请号：US16363527
申请日：2019-03-25
Applicant: GM Global Technology Operations LLC
Inventor： Bao Wang , Andrew K. Chandler , David P. Tasky , Karl C. Dorgan , Robert J. Heydel
IPC: H01M10/6554 , H01M2/10 , H01M10/613 , H01M10/6556 , H01M10/625 , H01M2/34
Abstract: A cooling system for a rechargeable energy system includes a plurality of bus bars, a cooling plate configured for cooling the plurality of bus bars and disposed in a thermally-conductive relationship with a portion of each of the plurality of bus bars, and an isolation component disposed between and in contact with the cooling plate and each of the plurality of bus bars. A rechargeable energy storage system and device are also described.
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公开(公告)号：US20190160953A1
公开(公告)日：2019-05-30
申请号：US15824525
申请日：2017-11-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , Lei Hao , Michael Harpster , Andrew K. Chandler
IPC: B60L11/18
CPC classification number: B60L53/11 , B60L50/66 , B60L53/16 , B60L53/65 , B60L2210/30 , B60L2230/16
Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device. The vehicle charging controller is programmed to selectively actuate the plurality of low-loss switching devices based on the charging voltage of the charging station such that a nominal voltage of the reconfigurable energy storage system matches the charging voltage of the charging station.
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4.发明授权公开(公告)号：US09176197B2
公开(公告)日：2015-11-03
申请号：US13947845
申请日：2013-07-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Andrew K. Chandler , Roger M. Brisbane , Paul W. Kelley
CPC classification number: G01R31/3627 , G01R31/3648 , G01R31/3675 , H02J7/007
Abstract: System and methods for measuring parameters of a battery system using a battery sensing circuit are presented. In certain embodiments, the systems and methods allow a vehicle battery sensing circuit and/or other associated system to measure a compensation parameter. The compensation parameter may be utilized by the battery sensing circuit and/or other associated system in measuring other parameters relating to the battery system including cell voltages.
Abstract translation: 介绍了使用电池检测电路测量电池系统参数的系统和方法。 在某些实施例中，系统和方法允许车辆电池感测电路和/或其他相关系统测量补偿参数。 电池感测电路和/或其他相关联的系统可以利用补偿参数来测量与包括电池电压的电池系统有关的其它参数。
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5.发明授权公开(公告)号：US12012006B2
公开(公告)日：2024-06-18
申请号：US17692480
申请日：2022-03-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rashmi Prasad , Robert J. Heydel , Andrew K. Chandler , Shubham V. Shedge , Chandra S. Namuduri , Eleni C. Pitses
CPC classification number: B60L3/04 , B60L3/0046 , B60L58/14 , B60L58/15 , H01H39/006
Abstract: A battery electric system for a motor vehicle or another electrified system includes a battery pack connected to a direct current voltage bus, and having positive and negative battery terminals, a main pyrotechnic fuse (“pyro fuse”), a high-voltage (HV) component connected to the bus via an HV channel, a current sensing element connected to the HV component on the HV channel, and a control system configured to selectively disconnect the battery pack from the bus by transmitting a voltage signal to the main pyro fuse when a measured current value from the current sensor is indicative of a short-circuit fault. A channel switch may be connected to or integral with the current sensing element, and configured to disconnect the HV component from the bus by opening in response to the measured current value.
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Patent Agency Ranking
公开(公告)号：US20240055876A1
公开(公告)日：2024-02-15
申请号：US17887011
申请日：2022-08-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shifang Li , Seungwoo Paik , Li-pen John Ho , Andrew K. Chandler
CPC classification number: H02J7/0031 , H01M10/425 , H02J7/00309 , H01M2010/4271
Abstract: A method is provided for controlling a vehicle battery system that includes a voltage bus having positive and negative bus rails, at least one battery pack connected to the voltage bus and having positive and negative battery terminals, and a battery disconnect unit. The method includes disconnecting the at least one battery pack from the voltage bus via the battery disconnect unit by performing a first battery disconnect process upon detecting an event condition, by performing a second battery disconnect process upon detecting a high overcurrent condition, and by performing a third battery disconnect process upon detecting a low overcurrent condition. The first battery disconnect process utilizes opening a main pyro fuse, the second battery disconnect process utilizes one or more of thermal fuses, solid-state relays and/or current sensors, and the third battery disconnect process utilizes one or more contactors or solid-state relays.
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公开(公告)号：US10654370B2
公开(公告)日：2020-05-19
申请号：US16531648
申请日：2019-08-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , Lei Hao , Michael Harpster , Andrew K. Chandler
Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device. The vehicle charging controller is programmed to selectively actuate the plurality of low-loss switching devices based on the charging voltage of the charging station such that a nominal voltage of the reconfigurable energy storage system matches the charging voltage of the charging station.
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公开(公告)号：US10369896B2
公开(公告)日：2019-08-06
申请号：US15824525
申请日：2017-11-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , Lei Hao , Michael Harpster , Andrew K. Chandler
Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device. The vehicle charging controller is programmed to selectively actuate the plurality of low-loss switching devices based on the charging voltage of the charging station such that a nominal voltage of the reconfigurable energy storage system matches the charging voltage of the charging station.
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公开(公告)号：US10886758B2
公开(公告)日：2021-01-05
申请号：US16057019
申请日：2018-08-07
Applicant: GM Global Technology Operations LLC
Inventor： Brandon M. Thayer , Fang Wang , Charles Hua , Andrew K. Chandler
Abstract: An electrical system includes a battery disconnect unit (BDU) connected to a rechargeable energy storage system (RESS) via a high-voltage bus. The BDU has one or more contactors that close responsive a low-voltage drive current to thereby connect the RESS to the high-voltage bus. A low-voltage drive circuit conducts the drive current to the contactor(s). Opening of a low-voltage connection interrupts the drive current and causes the contactor(s) to transition from the closed state to an open state. The contactor(s) open in response to interruption of the drive current to thereby disconnect the RESS. The contactor(s) may be closed again after a lockout safety procedure, such that reestablishing the electrical connection does not itself re-energize the high-voltage bus. An electrified powertrain includes a transmission, electric machine, power inverter module, and the above-noted electrical system.
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公开(公告)号：US20200052508A1
公开(公告)日：2020-02-13
申请号：US16057019
申请日：2018-08-07
Applicant: GM Global Technology Operations LLC
Inventor： Brandon M. Thayer , Fang Wang , Charles Hua , Andrew K. Chandler
Abstract: An electrical system includes a battery disconnect unit (BDU) connected to a rechargeable energy storage system (RESS) via a high-voltage bus. The BDU has one or more contactors that close responsive a low-voltage drive current to thereby connect the RESS to the high-voltage bus. A low-voltage drive circuit conducts the drive current to the contactor(s). Opening of a low-voltage connection interrupts the drive current and causes the contactor(s) to transition from the closed state to an open state. The contactor(s) open in response to interruption of the drive current to thereby disconnect the RESS. The contactor(s) may be closed again after a lockout safety procedure, such that reestablishing the electrical connection does not itself re-energize the high-voltage bus. An electrified powertrain includes a transmission, electric machine, power inverter module, and the above-noted electrical system.
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