公开(公告)号：US09612290B2

公开(公告)日：2017-04-04

申请号：US14564927

申请日：2014-12-09

申请人： Dat Tan Chau ,  David Robert Battle

发明人： Dat Tan Chau ,  David Robert Battle

IPC分类号： G01N27/416 ,  G01R31/36

CPC分类号： G01R31/3658 ,  G01R31/3662 ,  G01R31/3679

摘要： Reducing or avoiding noise in measured signals of a tested battery cell(s) in a battery power system is disclosed. A battery monitoring device(s) coupled to a tested battery cell(s) applies test current pulses at a predetermined frequency to place an effective alternating current (AC) load on the tested battery cell(s). The resulting AC voltage signal generated across the tested battery cell(s) is sampled at the frequency of the test current to convert the AC voltage signal to a direct current (DC) voltage signal to be measured to determine the state-of-health of the tested battery cell(s). To avoid or reduce noise in the DC voltage signal, a noise spectrum of noise signals at defined frequencies induced on the tested battery cell(s) is determined. The battery monitoring device sets the frequency of the test current pulse at a determined reduced-noise frequency to avoid noise signals being present in the DC voltage signal.

公开(公告)号：US20160109525A1

公开(公告)日：2016-04-21

申请号：US14564927

申请日：2014-12-09

申请人： Dat Tan Chau ,  David Robert Battle

发明人： Dat Tan Chau ,  David Robert Battle

IPC分类号： G01R31/36

CPC分类号： G01R31/3658 ,  G01R31/3662 ,  G01R31/3679

摘要： Reducing or avoiding noise in measured signals of a tested battery cell(s) in a battery power system is disclosed. A battery monitoring device(s) coupled to a tested battery cell(s) applies test current pulses at a predetermined frequency to place an effective alternating current (AC) load on the tested battery cell(s). The resulting AC voltage signal generated across the tested battery cell(s) is sampled at the frequency of the test current to convert the AC voltage signal to a direct current (DC) voltage signal to be measured to determine the state-of-health of the tested battery cell(s). To avoid or reduce noise in the DC voltage signal, a noise spectrum of noise signals at defined frequencies induced on the tested battery cell(s) is determined. The battery monitoring device sets the frequency of the test current pulse at a determined reduced-noise frequency to avoid noise signals being present in the DC voltage signal.

摘要翻译： 公开了在电池电力系统中测试的电池的测量信号中减少或避免噪声。 耦合到经测试的电池单元的电池监视装置以预定频率施加测试电流脉冲，以将有效的交流（AC）负载置于所测试的电池单元上。 所测试的电池单元产生的交流电压信号以测试电流的频率进行采样，以将交流电压信号转换为要测量的直流（DC）电压信号，以确定健康状况 被测试的电池单元。 为了避免或降低直流电压信号中的噪声，确定了在被测试的电池单元上感应到的限定频率处的噪声信号的噪声谱。 电池监视装置将测试电流脉冲的频率设定在确定的降低噪声频率，以避免直流电压信号中存在噪声信号。

公开(公告)号：US09276298B2

公开(公告)日：2016-03-01

申请号：US13780795

申请日：2013-02-28

申请人： David Brown ,  David Robert Battle ,  Christopher James Belcher ,  Duncan Joseph Brown ,  George Feller

发明人： David Brown ,  David Robert Battle ,  Christopher James Belcher ,  Duncan Joseph Brown ,  George Feller

IPC分类号： H01M10/63 ,  H01M10/48 ,  H01M10/42 ,  G01R31/36 ,  G01R19/165

CPC分类号： H01M10/482 ,  G01R19/16542 ,  G01R31/3631 ,  G01R31/3658 ,  G01R31/3662 ,  G01R31/3679 ,  G01R31/3693 ,  H01M2010/4278

摘要： Embodiments disclosed include automatically determining alarm threshold settings for monitored battery cells in battery systems. Battery monitoring control units are provided that are configured to initiate battery performance tests (e.g., ohmic tests) on battery cells in a battery system. Failing battery cells are identified as those battery cells having battery performance characteristics outside defined battery performance threshold settings. An initial performance alarm threshold setting is established for each battery cell because of unique performance characteristics that can substantially change during initial charging cycles before the battery cells have settled. A settled performance alarm threshold setting specific to each battery cell is then established based on battery cell performance during the defined settling time period. In this manner, more accurate performance alarm threshold settings are automatically established for monitoring each battery cell based on the individual performance characteristics of each battery cell during the settling time period.

摘要翻译： 公开的实施例包括自动确定电池系统中监视的电池单元的报警阈值设置。 提供了电池监视控制单元，其被配置为在电池系统中的电池单元上启动电池性能测试（例如欧姆测试）。 电池单元被识别为具有电池性能特性的电池性能特征的电池单元。 由于独特的性能特征，在电池单元已经稳定之前可以在初始充电周期中基本上改变，因此为每个电池单元建立初始性能报警阈值设置。 然后基于在定义的建立时间段期间的电池单元性能建立每个电池单元特定的稳定的性能警报阈值设置。 以这种方式，自动建立更准确的性能报警阈值设置，用于在建立时间段期间基于每个电池单元的各个性能特性监视每个电池单元。