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1. 发明授权

US06624636B2 Method and apparatus for estimating terminal voltage of battery, method and apparatus for computing open circuit voltage of battery, and method and apparatus for computing battery capacity 失效
公开(公告)号：US06624636B2
公开(公告)日：2003-09-23
申请号：US10080278
申请日：2002-02-22
申请人： Youichi Arai , Hideaki Kamohara , Michito Enomoto , Tomohiro Kawaguchi
发明人： Youichi Arai , Hideaki Kamohara , Michito Enomoto , Tomohiro Kawaguchi
IPC分类号： G01N27416
CPC分类号： B60K6/22 , B60K6/28 , B60K6/485 , B60W10/26 , G01R31/3631 , Y02T10/6226 , Y10S903/904 , Y10S903/907
摘要： A method and an apparatus for computing a charging state of a battery without being affected by an influence of polarization are provided. First computing means computes a voltage-current characteristic including the influence of the polarization during an decrease of a discharge current of the battery on the basis of a terminal voltage and discharge current measured while the battery carries out a constant load discharge with a current value large enough to cancel a charge-side polarization arisen in the battery at least just before the discharge. A second computing means shifts the voltage-current characteristic to a specific extent in the direction of a voltage coordinate axis. A residual voltage drop value in advance stored by storing means is added to a present estimated voltage value estimated by estimating means on the basis of the shifted voltage-current characteristic, thereby a present open circuit voltage of the battery is computed.

2. 发明授权

US07034504B2 Battery status monitoring apparatus which monitors internal battery resistance, saturation polarization detecting method and dischargeable capacity detecting method 失效
标题翻译：监测内部电池电阻，饱和极化检测方法和放电容量检测方法的电池状态监测装置
公开(公告)号：US07034504B2
公开(公告)日：2006-04-25
申请号：US10436139
申请日：2003-05-13
申请人： Youichi Arai , Shuji Satake , Michito Enomoto , Tomohiro Kawaguchi , Ken Ito
发明人： Youichi Arai , Shuji Satake , Michito Enomoto , Tomohiro Kawaguchi , Ken Ito
IPC分类号： H01M10/44
CPC分类号： G01R31/3648 , G01R31/362 , G01R31/3662
摘要： A microcomputer monitors, on the basis of outputs from a current sensor and voltage sensor, a voltage drop due to an internal resistance when the drop in the terminal voltage due to polarization occurring during the discharge of a battery is saturated, and a dischargeable capacity of the battery corresponding to the value resulting when the saturated voltage drop of the terminal voltage is subtracted from the chargeable capacity of the battery. Such a configuration provide a battery status monitoring device capable of knowing the battery status correctly, a saturation polarization detecting method which is useful to know the charging state of the battery and a dischargeable capacity detecting method.
摘要翻译：微型计算机根据来自电流传感器和电压传感器的输出，监测由于在电池放电期间发生的极化引起的端子电压下降饱和时由于内部电阻引起的电压降，并且可放电容量电池对应于从电池的可充电容量中减去端子电压的饱和电压降所产生的值。这种配置提供能够正确地知道电池状态的电池状态监视装置，用于知道电池的充电状态的可用的饱和极化检测方法和可放电容量检测方法。

3. 发明授权

US06518735B2 Method and apparatus for measuring pure resistance of in-vehicle battery 失效
公开(公告)号：US06518735B2
公开(公告)日：2003-02-11
申请号：US09985525
申请日：2001-11-05
申请人： Tomohiro Kawaguchi , Norihito Enomoto , Hideaki Kamohara , Youichi Arai
发明人： Tomohiro Kawaguchi , Norihito Enomoto , Hideaki Kamohara , Youichi Arai
IPC分类号： G01N27416
CPC分类号： G01R31/3624 , G01R31/3648 , G01R31/3662 , G01R31/3668
摘要： In an apparatus for measuring a pure resistance of an in-vehicle battery, a terminal voltage and a discharging current of the battery are measured when the discharging current flows from the battery. A first approximate equation of a voltage-current characteristic curve is acquired for an increasing discharging current, and a second approximate equation is the voltage-current characteristic curve is acquired for a decreasing discharging current. Two points providing equal synthesized resistances each composed of the pure resistance and polarization resistance component are set on the voltage-current characteristic curves represented by the first and the second approximate equations, respectively. The gradients between the two points in each of the voltage-current characteristic curves are corrected to provide two corrected gradients each exclusive of a voltage drop due to the polarization resistance component. The two corrected gradients are averaged to provide an average value which is measured as a pure resistance of the battery.

4. 发明申请

US20060238167A1 Method and device for estimating battery's dischargeable capacity 审中-公开
标题翻译：估计电池可放电容量的方法和装置
公开(公告)号：US20060238167A1
公开(公告)日：2006-10-26
申请号：US10551383
申请日：2004-03-23
申请人： Youichi Arai , Michito Enomoto , Kenichi Amano
发明人： Youichi Arai , Michito Enomoto , Kenichi Amano
IPC分类号： H02J7/00
CPC分类号： G01R31/3835 , G01R31/3647
摘要： A unit for estimating voltage drop 23a-1 estimates voltage drop of a battery terminal when maximum current is continuously supplied at high rate discharge. A unit for estimating residual discharge capacity 23a-2 estimates residual discharge capacity of the battery for allowing the maximum current to be continuously supplied to a load by subtracting the undischargeable electric charge calculated from the voltage drop estimated by the unit for estimating voltage drop 23a-1 from the dischargeable charge in any state of charge.
摘要翻译：用于估计电压降23a-1的单元估计当以高速率放电连续提供最大电流时电池端子的电压降。用于估计剩余放电容量的单元23a-2估计电池的剩余放电容量，用于通过从由用于估计电压降23的单元估计的电压降计算出的不可充电电荷减去从而将最大电流连续提供给负载 a-1来自任何充电状态的可放电电荷。

5. 发明授权

US06661231B1 Battery capacity calculating method and device therefor 失效
标题翻译：电池容量计算方法及其装置
公开(公告)号：US06661231B1
公开(公告)日：2003-12-09
申请号：US09856467
申请日：2001-10-09
申请人： Youichi Arai , Tsutomu Saigo , Hideaki Kamohara
发明人： Youichi Arai , Tsutomu Saigo , Hideaki Kamohara
IPC分类号： G01N27416
CPC分类号： G01R31/3624 , G01R31/3648 , G01R31/3675
摘要： A method and apparatus are provided, by which a state of charge of a battery is accurately computed without being influenced by the polarization effect. An estimated voltage of the battery 13 in a constant load discharge with a predetermined large current value is estimated from a voltage-current characteristic when the discharge current of the constant load discharging process by the battery 13 that is in an equilibrium state is decreasing from the predetermined large current value corresponding to a maximum supplying electric power to the load. A difference between the estimated voltage and an open circuit voltage, which estimates the estimated voltage and is a terminal voltage of the battery 13 that is in an equilibrium state before the start of the constant load discharge by using the predetermined large current value, is calculated. Then, the difference is memorized by first memory means 27 for memorizing a residual voltage drop defining as the residual voltage drop due to a residual polarization at the end of the discharging process of the battery 13. The residual voltage drop memorized by the first memory means 27 is added to the estimated voltage of the battery 13, thereby a present charging capacity of the battery 13 is computed.
摘要翻译：提供了一种方法和装置，通过该方法和装置可以精确地计算电池的充电状态而不受偏振效应的影响。当处于平衡状态的电池13的恒定负载放电过程的放电电流从电池电流特性减小时，从电压 - 电流特性估计具有预定大电流值的恒定负载放电中的电池13的估计电压预定的大电流值对应于向负载提供电力的最大值。计算估计电压和开路电压之间的差异，该电压估算出通过使用预定大电流值在恒定负载放电开始之前处于平衡状态的电池13的估计电压并且是其终端电压。然后，差值由第一存储装置27存储，用于存储由于在电池13的放电过程结束时由于残余极化而定义为残余电压降的残余电压降。由第一存储装置存储的剩余电压降 27被添加到电池13的估计电压，由此计算电池13的当前充电容量。

6. 发明授权

US06275008B1 Battery capacity detection system with temperature correction 失效
标题翻译：电池容量检测系统具有温度校正功能
公开(公告)号：US06275008B1
公开(公告)日：2001-08-14
申请号：US09609768
申请日：2000-07-03
申请人： Youichi Arai , Tsutomu Saigo , Hideaki Kamohara
发明人： Youichi Arai , Tsutomu Saigo , Hideaki Kamohara
IPC分类号： H01M1046
CPC分类号： G01R31/3624 , G01R31/006 , G01R31/362 , G01R31/3648 , G01R31/3675 , G01R31/3693
摘要： A battery capacity detection system according to the invention is provided with: a temperature sensor for sensing a temperature of the battery; a full-charge voltage calculation section for calculating a voltage of the battery in a full charge state by using the temperature sensed by the temperature sensor; and an SOC calculation section for calculating an SOC of the battery by using the voltage of the battery in the full charge state calculated by using the temperature in the full-charge voltage calculation processing section.
摘要翻译：根据本发明的电池容量检测系统设置有：用于感测电池温度的温度传感器; 全充电电压计算部分，用于通过使用由温度传感器感测的温度来计算充满电状态的电池的电压; 以及SOC计算部，其通过使用通过使用全充电电压计算处理部中的温度计算出的充满电状态的电池的电压来计算电池的SOC。

7. 发明申请

US20060273763A1 Battery status monitoring apparatus and method 审中-公开
标题翻译：电池状态监测装置及方法
公开(公告)号：US20060273763A1
公开(公告)日：2006-12-07
申请号：US10551385
申请日：2004-03-23
申请人： Youichi Arai , Yoshiya Miyazaki
发明人： Youichi Arai , Yoshiya Miyazaki
IPC分类号： H02J7/00
CPC分类号： G01R31/389 , G01R31/3842 , G01R31/392
摘要： A microcomputer 23 monitors the battery condition by detecting a first deterioration degree caused by increase of an internal resistance of a battery 13 and a second deterioration degree caused by inactivation of an activation material in the battery 13 based on outputs of a current sensor 15 and a voltage sensor 17.
摘要翻译：微型计算机23通过检测由电池13的内部电阻的增加引起的第一劣化程度和由于电池13中的激活材料的失活引起的第二劣化程度，基于电流传感器15和电压传感器17。

8. 发明授权

US06850038B2 Method of estimating state of charge and open circuit voltage of battery, and method and device for computing degradation degree of battery 失效
标题翻译：电池充电状态和开路电压的估算方法，电池劣化程度计算方法和装置
公开(公告)号：US06850038B2
公开(公告)日：2005-02-01
申请号：US10437454
申请日：2003-05-14
申请人： Youichi Arai , Shuji Satake , Yoshiya Miyazaki
发明人： Youichi Arai , Shuji Satake , Yoshiya Miyazaki
IPC分类号： G01N27/416 , H01M10/48 , H02J7/00
CPC分类号： H01M10/48
摘要： A method of estimating a state of charge of a battery, a method of estimating an open circuit voltage of a battery, and a method and device for computing a degradation degree of a battery are provided. As a degradation degree, a ratio of a total electrical quantity chargeable or dischargeable of a battery at any time point to an initial electrical quantity that is a total electrical quantity chargeable or dischargeable of the battery upon non-degradation is computed, and by using the degradation degree, a state of charge or an open circuit voltage of the battery is accurately estimated.
摘要翻译：提供一种估计电池的充电状态的方法，估计电池的开路电压的方法以及用于计算电池的劣化程度的方法和装置。作为劣化程度，计算电池的任意时间点的电量的总电量与不劣化时的电池的可充放电的总电量的初始电量的比例，并且通过使用精确地估计电池的劣化程度，充电状态或开路电压。

9. 发明授权

US5848380A Method and system for estimation of cell discharge stop voltage 失效
标题翻译：电池放电停止电压估算方法及系统
公开(公告)号：US5848380A
公开(公告)日：1998-12-08
申请号：US790432
申请日：1997-01-29
申请人： Youichi Arai , Tsutomu Saigo
发明人： Youichi Arai , Tsutomu Saigo
IPC分类号： B60L3/00 , G01R19/165 , G01R31/00 , G01R31/36 , G01R19/00
CPC分类号： G01R31/005 , G01R31/3651 , G01R31/3624
摘要： As a simulation load is driven with an object cell, a cell discharge stop voltage is estimated by collecting data of a discharge current and a terminal voltage, processing the collected data to obtain an approximate linear function between the discharge current and the terminal voltage, substituting a first reference value into the linear function to estimate a first voltage, making a decision for the first voltage having reached a second reference value, responding to the decision for substituting a third reference value into the linear function to estimate a second voltage, and outputting the second voltage as a representative value of the discharge stop voltage.
摘要翻译：由于模拟负载由对象单元驱动，通过收集放电电流和端子电压的数据来估计单元放电停止电压，处理收集的数据以获得放电电流和端子电压之间的近似线性函数，代替响应于将第三参考值替换为线性函数以估计第二电压的决定，并且输出第一参考值以估计第一电压，并且对第一电压进行判定以达到第二参考值第二电压作为放电停止电压的代表值。

10. 发明授权

US5654630A Contactless sensor driven by single power supply 失效
标题翻译：非接触传感器由单电源驱动
公开(公告)号：US5654630A
公开(公告)日：1997-08-05
申请号：US644577
申请日：1996-05-10
申请人： Kenichi Shimoyama , Youichi Arai , Tsutomu Saigo
发明人： Kenichi Shimoyama , Youichi Arai , Tsutomu Saigo
IPC分类号： G01R1/07 , G01R15/20 , G01R19/00
CPC分类号： G01R1/07 , G01R15/202
摘要： A sensor contactlessly driven by a single power supply is disclosed. A current flows in a resistor R.sub.L through the secondary winding of a coil in the direction corresponding to the direction of magnetic fluxes generated in the coil in accordance with discharge or charge mode of a main battery. The input terminal of a voltage follower is connected to the voltage-dividing point of a series circuit including resistors R.sub.1 and R.sub.2 and a reference voltage control circuit. The reference voltage control circuit changes the input voltage of the voltage follower in accordance with the direction of the current flowing in the resistor R.sub.L. It follows therefore that the measurement range is switched in accordance with discharge or charge mode of the main battery, with the result that the overall measurement range can be widened in spite of the fact that only a single power supply +Vcc is used.
摘要翻译：公开了由单个电源非接触驱动的传感器。 A电流根据主电池的放电或充电模式沿与线圈中产生的磁通方向相对应的方向通过线圈的次级绕组流过电阻器RL。电压跟随器的输入端子连接到包括电阻器R1和R2以及参考电压控制电路的串联电路的分压点。参考电压控制电路根据在电阻器RL中流动的电流的方向改变电压跟随器的输入电压。因此，根据主电池的放电或充电模式来切换测量范围，结果是尽管仅使用单个电源+ Vcc，总体测量范围可以扩大。

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