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公开(公告)号：US11830990B2
公开(公告)日：2023-11-28
申请号：US16773558
申请日：2020-01-27
IPC分类号： H01M10/48 , H02J7/00 , G01K1/02 , G01K13/00 , B60L50/64 , B60L58/24 , H02P27/06 , H01M10/42 , B60K6/28 , B60K6/26
CPC分类号： H01M10/486 , B60L50/64 , B60L58/24 , G01K1/026 , G01K13/00 , H01M10/4257 , H02J7/0013 , H02J7/00032 , H02J7/0047 , H02P27/06 , B60K6/26 , B60K6/28 , B60Y2200/91 , B60Y2200/92 , H01M2010/4271 , H01M2010/4278 , H01M2220/20
摘要： A battery system includes a rechargeable energy storage system (RESS) having battery cells, and a battery controller network configured to execute two-level logic to detect a thermal runaway condition. The network includes RESS-embedded cell monitoring units (CMUs) electrically connected to a respective cell group, and measuring and wirelessly transmitting cell data. A battery control module (BCM) is in communication with the CMUs. Thermal runaway sensors are mounted on the CMUs and/or the BCM. A master controller connected to the BCM includes a thermal runaway detection algorithm configured to detect a thermal runaway condition occurring within the RESS. The BCM uses data from the CMUs and thermal runaway sensors to execute first logic level which determines when to wake up the master controller. The master controller, in response to receipt of a wakeup signal, executes a second logic level to execute the algorithm.
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公开(公告)号：US20210234209A1
公开(公告)日：2021-07-29
申请号：US16773558
申请日：2020-01-27
摘要： A battery system includes a rechargeable energy storage system (RESS) having battery cells, and a battery controller network configured to execute two-level logic to detect a thermal runaway condition. The network includes RES S-embedded cell monitoring units (CMUs) electrically connected to a respective cell group, and measuring and wirelessly transmitting cell data. A battery control module (BCM) is in communication with the CMUs. Thermal runaway sensors are mounted on the CMUs and/or the BCM. A master controller connected to the BCM includes a thermal runaway detection algorithm configured to detect a thermal runaway condition occurring within the RESS. The BCM uses data from the CMUs and thermal runaway sensors to execute first logic level which determines when to wake up the master controller. The master controller, in response to receipt of a wakeup signal, executes a second logic level to execute the algorithm.
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公开(公告)号：US20140266222A1
公开(公告)日：2014-09-18
申请号：US13804151
申请日：2013-03-14
发明人： Andrew C. Baughman
IPC分类号： G01R31/36
CPC分类号： G01R31/362 , G01R31/3651 , H01M10/425 , H01M2010/4271 , H02J7/00 , H02J7/0021 , Y02T10/7055
摘要： A method for estimating the voltage of a battery element of a battery system is provided. In one embodiment, the method comprises providing a balancing/sensing circuit having a series combination of a balancing switch and a balancing resistive element electrically connected in parallel with the battery element, and measuring the voltage across the balancing switch/balancing resistive element combination when the switch is presumed to be in a “closed” state.” The method further comprises deriving a compensated value for the measured voltage by applying a calculated compensation factor to the measured voltage, the compensated value compensating for a voltage drop occurring in the balancing/sensing circuit when the balancing switch is in the “closed” state and represents an estimate of the battery element voltage. A battery system is also provided that includes a battery element, a balancing/sensing circuit, a sensor, and a control module configured to perform the method described above.
摘要翻译： 提供了一种用于估计电池系统的电池元件的电压的方法。 在一个实施例中，该方法包括提供平衡/感测电路，其具有与电池元件并联电连接的平衡开关和平衡电阻元件的串联组合，并且当平衡开关/平衡电阻元件组合 开关被认为处于“关闭”状态。“该方法还包括通过将计算出的补偿因子应用于所测量的电压来导出测量电压的补偿值，该补偿值补偿在平衡/感测中发生的电压降 当平衡开关处于“关闭”状态并且表示电池元件电压的估计时。 还提供一种电池系统，其包括电池元件，平衡/感测电路，传感器和被配置为执行上述方法的控制模块。
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4.发明授权公开(公告)号：US11626633B2
公开(公告)日：2023-04-11
申请号：US17007981
申请日：2020-08-31
IPC分类号： H01M10/633 , H01M10/613 , H01M10/625 , H01M10/48 , H01M10/42
摘要： A battery system with cell groups arranged in modules and with plurality of modules arranged in individual battery sub-packs includes a controller network configured to monitor the sub-packs. The network includes a plurality of cell monitoring units (CMUs); each CMU connected to one module for processing data for respective cell groups. The network also includes multiple voltage sensors on each CMU, with each sensor detecting voltage across one cell group. The network additionally includes an electronic controller programmed with an algorithm and in wireless communication with each CMU. The algorithm identifies when electrical power is disconnected from the RESS and directs electrical current through a selected sub-pack after power is restored. The algorithm also interrogates voltage sensors of a particular CMU, detects a change in voltage triggered by the current, and records a cross-reference between the particular CMU and the selected sub-pack when the change in voltage is detected.
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公开(公告)号：US20230055095A1
公开(公告)日：2023-02-23
申请号：US17405488
申请日：2021-08-18
IPC分类号： G01R31/3835 , G01R31/388 , G01R31/396
摘要： A system for self-discharge prognostics for vehicle battery cells with an internal short circuit includes a plurality of battery cells and a voltage sensor providing open-circuit voltage data over time for each battery cell. The system further includes a computerized prognostic controller operating programming to monitor the open-circuit voltage data over time for each of the plurality of battery cells and evaluate a voltage drop rate through a time window for each of the plurality of battery cells based upon the open-circuit voltage data. The controller further identifies one of the plurality of battery cells to include the internal short circuit based upon the voltage drop rate and signals an alert based upon the one of the plurality of battery cells including the internal short circuit.
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公开(公告)号：US11575173B2
公开(公告)日：2023-02-07
申请号：US16536904
申请日：2019-08-09
发明人： Andrew J. Cornelli , Philip J. Prociw , Karl C. Dorgan , Andrew C. Baughman , Steven J. Bunce , Steven M. Davis
摘要： A rechargeable energy storage system includes a battery pack and a battery controller. The battery pack has a voltage current temperature module and multiple battery modules. Respective battery modules have multiple battery cells and are operable to store a module identifier that encodes at least one parameter of the battery cells, receive a configuration request from the voltage current temperature module, and transfer the module identifier to the voltage current temperature module in response to the configuration request. The battery controller is in communication with the voltage current temperature module and is operable to send a status request to the voltage current temperature module, receive the plurality of module identifiers from the voltage current temperature module in response to the status request, and compare the module identifiers to determine either a match or at least one mismatch among the module identifiers of the battery modules.
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公开(公告)号：US20210043894A1
公开(公告)日：2021-02-11
申请号：US16536904
申请日：2019-08-09
发明人： Andrew J. Cornelli , Philip J. Prociw , Karl C. Dorgan , Andrew C. Baughman , Steven J. Bunce , Steven M. Davis
摘要： A rechargeable energy storage system includes a battery pack and a battery controller. The battery pack has a voltage current temperature module and multiple battery modules. Respective battery modules have multiple battery cells and are operable to store a module identifier that encodes at least one parameter of the battery cells, receive a configuration request from the voltage current temperature module, and transfer the module identifier to the voltage current temperature module in response to the configuration request. The battery controller is in communication with the voltage current temperature module and is operable to send a status request to the voltage current temperature module, receive the plurality of module identifiers from the voltage current temperature module in response to the status request, and compare the module identifiers to determine either a match or at least one mismatch among the module identifiers of the battery modules.
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公开(公告)号：US20180034113A1
公开(公告)日：2018-02-01
申请号：US15219463
申请日：2016-07-26
CPC分类号： H01M10/482 , B60L53/24 , B60L58/12 , B60L58/22 , G01R31/396 , H01M10/0525 , H01M10/425 , H01M10/46 , H01M2010/4271 , H01M2010/4278 , H01M2220/20
摘要： A method and system are disclosed for estimating cell voltage excursion in a battery pack in the presence of a sensing fault in which actual cell voltages of first and second battery cells in a block of battery cells become unknown or missing. The sensing fault is detected, and a cell voltage is determined for each cell in the block other than the first and second cells. The method also includes measuring a block voltage, calculating an average cell voltage in the block, and estimating that the first cell is equal to the calculated average cell voltage. All excursion or deviation of the measured block voltage from a sum of the cell voltages and the estimated cell voltage of the first cell is assigned to the second cell. A control action is executed using the estimated cell voltages, including selectively enabling or disabling functionality of the battery pack.
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公开(公告)号：US09851393B2
公开(公告)日：2017-12-26
申请号：US14681197
申请日：2015-04-08
发明人： Yue Fan , Salah Chamlal , Shital Patel , Rashed S. Rabaa , Andrew C. Baughman
CPC分类号： G01R31/07
摘要： A fuse system includes a fuse element configured to receive a current. A controller is operatively connected to the fuse element and has a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for determining a remaining fuse life (LR) of the fuse element. Execution of the instructions by the processor causes the controller to determine a temperature (T) of the fuse element. The fuse system may be part of a vehicle. The controller may be configured to determine if the remaining fuse life is below first and second thresholds. If the remaining fuse life is above the second threshold, a first message may be displayed to a vehicle display. If the remaining fuse life is below the second threshold, the vehicle may be shifted to a predefined alternative operating mode.
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公开(公告)号：US20160299186A1
公开(公告)日：2016-10-13
申请号：US14681197
申请日：2015-04-08
发明人： Yue Fan , Salah Chamlal , Shital Patel , Rashed S. Rabaa , Andrew C. Baughman
IPC分类号： G01R31/07
CPC分类号： G01R31/07
摘要： A fuse system includes a fuse element configured to receive a current. A controller is operatively connected to the fuse element and has a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for determining a remaining fuse life (LR) of the fuse element. Execution of the instructions by the processor causes the controller to determine a temperature (T) of the fuse element. The fuse system may be part of a vehicle. The controller may be configured to determine if the remaining fuse life is below first and second thresholds. If the remaining fuse life is above the second threshold, a first message may be displayed to a vehicle display. If the remaining fuse life is below the second threshold, the vehicle may be shifted to a predefined alternative operating mode.
摘要翻译： 保险丝系统包括被配置为接收电流的熔丝元件。 控制器可操作地连接到熔丝元件并且具有处理器和有形的非暂时性存储器，其上记录有用于执行用于确定熔丝元件的剩余熔丝寿命（LR）的方法的指令。 由处理器执行指令使得控制器确定熔丝元件的温度（T）。 保险丝系统可以是车辆的一部分。 控制器可以被配置为确定剩余熔丝寿命是否低于第一阈值和第二阈值。 如果剩余的保险丝寿命高于第二阈值，则可以向车辆显示器显示第一消息。 如果剩余的保险丝寿命低于第二阈值，则车辆可以移动到预定的替代操作模式。
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