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公开(公告)号：US20120319658A1
公开(公告)日：2012-12-20
申请号：US13494502
申请日：2012-06-12
IPC分类号： H02J7/00
CPC分类号： H02J7/007 , H02J7/0016 , H02J7/0021 , H02J7/0026
摘要： A battery pack system module may include a module bypass switch for allowing charge current to bypass the battery pack system module. The module bypass switch may be activated to divert charging current from the battery pack system module to other battery pack system modules. The charging current may be diverted to bring other battery pack system modules into balance with the battery pack system module. That is, to bring the state of charge of all battery pack system modules into coarse balance. When the module bypass switch is activated, charging current through the module bypass switch may be monitored by a current sensing device such as a current sensing resistor. A microprocessor may receive information about the bypass current level and use the information to determine when to de-activate the module bypass switch. Sensing current through a module bypass switch allows more accurate and quicker inter-module balancing.
摘要翻译： 电池组系统模块可以包括用于允许充电电流绕过电池组系统模块的模块旁路开关。 可以激活模块旁路开关，以将来自电池组系统模块的充电电流转移到其他电池组系统模块。 可以转移充电电流以使其他电池组系统模块与电池组系统模块平衡。 也就是说，使所有电池组系统模块的充电状态变得平衡。 当模块旁路开关被激活时，通过模块旁路开关的充电电流可以由诸如电流感测电阻器的电流感测装置监视。 微处理器可以接收关于旁路电流电平的信息，并使用该信息来确定何时去激活模块旁路开关。 通过模块旁路开关感应电流可实现更准确和更快速的模块间平衡。
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公开(公告)号：US20130065093A1
公开(公告)日：2013-03-14
申请号：US13229914
申请日：2011-09-12
IPC分类号： H01M10/48
CPC分类号： G01R31/3679 , G01R31/3648 , H01M10/42 , H01M2010/4271
摘要： Battery cells may be monitored and a historical profile of the battery generated. The historical profile may be used to analyze a state-of-health of the battery cell. For example, the historical profile may be used to determine when a battery cell has developed an internal short that creates a safety hazard. The historical profile may include a count of the number of times the battery cell was out of balance and a count of the number of Coulombs the battery cell was out of balance. The number of Coulombs may be counted for a window of time. When the number of Coulombs exceeds a Coulomb threshold, a state-of-health flag may be set for the battery cell. The Coulomb threshold may be adjusted based, in part, on the counted number of times the battery cell is out of balance.
摘要翻译： 可以监视电池单元并产生电池的历史概况。 历史概况可用于分析电池单元的健康状态。 例如，历史概况可用于确定电池单元何时开发出产生安全隐患的内部短路。 历史资料可能包括电池电量不平衡的次数以及电池单元数量不平衡的库仑数。 库仑数可以计算在一个时间窗口。 当库仑数超过库仑阈值时，可以为电池单元设置健康状态标志。 可以部分地基于计数的电池单元不平衡的次数来调整库仑阈值。
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公开(公告)号：US20120086400A1
公开(公告)日：2012-04-12
申请号：US12899413
申请日：2010-10-06
IPC分类号： H02J7/00
CPC分类号： H02J7/0016
摘要： A battery pack system module may include a module bypass switch for allowing charge current to bypass the battery pack system module. A charge switch and a discharge switch may be coupled with the module bypass switch. When other battery pack system modules are coupled in series with the module, balancing between modules may be achieved by allowing charge current to bypass the unbalanced modules and charge other modules. For example, when an unbalanced module is at a higher level of charge than other modules, a charge switch and a discharge switch in the unbalanced module de-activate and a module bypass switch activates to allow charge current to rapidly bring other modules into balance. The discharge switch and the charge switch allow the charging current to bypass the unbalanced module creating little or no additional heat dissipation.
摘要翻译： 电池组系统模块可以包括用于允许充电电流绕过电池组系统模块的模块旁路开关。 充电开关和放电开关可以与模块旁路开关耦合。 当其他电池组系统模块与模块串联耦合时，可以通过允许充电电流绕过不平衡模块并对其他模块充电来实现模块之间的平衡。 例如，当不平衡模块处于比其他模块更高的电荷水平时，不平衡模块中的充电开关和放电开关被禁用，并且模块旁路开关激活，以允许充电电流快速使其他模块平衡。 放电开关和充电开关允许充电电流绕过不平衡模块，几乎不产生额外的散热。
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公开(公告)号：US20130018606A1
公开(公告)日：2013-01-17
申请号：US13182998
申请日：2011-07-14
IPC分类号： G06F19/00
CPC分类号： G01R31/3658 , G01R31/025 , G01R31/3679 , H01M10/441 , H02J7/0014
摘要： Internal shorts and other failures in lithium-ion battery cells may be detected during balancing of the battery cells. A counter may be used to detect when a battery cell is behaving differently than other battery cells by balancing more or less frequently. The counter may increment each time a battery cell is balanced to the other battery cells. A misbehaving battery cell may be flagged, when the counter exceeds a threshold value, for safety checks before an overheating event occurs. This misbehaving battery cell may be faulty due to an internal short. If the faulty battery cell is not corrected by replacement with a different battery cell or corrected by a user resetting the counter, the misbehaving battery cell may be disconnected to prevent the overheating event.
摘要翻译： 在电池单元的平衡期间，可能会检测到锂离子电池单元的内部短路和其他故障。 可以使用计数器来检测电池单元的运行方式与其他电池单元的运行方式不同或多或少地平衡。 每当电池单元与其他电池单元平衡时，计数器可能会增加。 当计数器超过阈值时，可能会发生行为不当的电池单元，以便在发生过热事件之前进行安全检查。 由于内部短路，这种不正常的电池可能有故障。 如果故障的电池单元没有通过用不同的电池单元更换或由用户重新设置计数器来校正，则可能断开不正常的电池单元以防止过热事件。
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公开(公告)号：US20120259564A1
公开(公告)日：2012-10-11
申请号：US13525549
申请日：2012-06-18
IPC分类号： G01R21/06
CPC分类号： G01R31/3606 , G01R21/06 , G01R31/3613 , G01R35/005
摘要： The remaining capacity of a power source, such as a battery, may be monitored with a microprocessor by integrating data received from a current sensor. The microprocessor may measure electrons passing through the battery by sampling the integrator and summing the values recorded from the integrator. Each time the integrator is sampled, the microprocessor may reset the integrator to prevent the integrator from saturating. The microprocessor may sample the integrator when the integrator approaches a predetermined value. The remaining capacity of the battery may be calculated based on calibration values and the sum of electrons measured by the integrator. The remaining capacity may be communicated to remote users through a network and displayed in an executive dashboard.
摘要翻译： 通过积分从当前传感器接收到的数据，可以利用微处理器来监测诸如电池的电源的剩余容量。 微处理器可以通过对积分器进行采样并对从积分器记录的值求和来测量通过电池的电子。 每次采集积分器时，微处理器可能会重置积分器，以防止积分器饱和。 当积分器接近预定值时，微处理器可以对积分器进行采样。 可以基于校准值和由积分器测量的电子总和来计算电池的剩余容量。 剩余容量可以通过网络传送给远程用户，并显示在执行仪表板中。
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公开(公告)号：US20110153240A1
公开(公告)日：2011-06-23
申请号：US13036435
申请日：2011-02-28
IPC分类号： G01R31/36 , G01N27/416 , G06F19/00
CPC分类号： G01R31/3606 , G01R21/06 , G01R31/3613 , G01R35/005
摘要： The remaining capacity of a battery may be monitored with a microprocessor by integrating a voltage measured across a current sense resistor coupled in series with the battery. The microprocessor may measure electrons passing through the battery by sampling the integrator and summing the values recorded from the integrator. Each time the integrator is sampled, the microprocessor may reset the integrator to prevent the integrator from saturating. The remaining capacity of the battery may be calculated based on calibration values and the sum of electrons measured by the integrator. The remaining capacity may be communicating to remote users through a network and displayed in an executive dashboard.
摘要翻译： 电池的剩余容量可以用微处理器来监测，该电流通过集成在与电池串联耦合的电流检测电阻器上测量的电压。 微处理器可以通过对积分器进行采样并对从积分器记录的值求和来测量通过电池的电子。 每次采集积分器时，微处理器可能会重置积分器，以防止积分器饱和。 可以基于校准值和由积分器测量的电子总和来计算电池的剩余容量。 剩余容量可能通过网络与远程用户通信，并显示在执行仪表板中。
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