CN102741699A - Full-charge capacity correction circuit, charging system, battery pack, and full-charge capacity correction method - Google Patents

Full-charge capacity correction circuit, charging system, battery pack, and full-charge capacity correction method Download PDF

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CN102741699A
CN102741699A CN 201080062474 CN201080062474A CN102741699A CN 102741699 A CN102741699 A CN 102741699A CN 201080062474 CN201080062474 CN 201080062474 CN 201080062474 A CN201080062474 A CN 201080062474A CN 102741699 A CN102741699 A CN 102741699A
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ratio
full charge
value
secondary battery
charge capacity
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CN 201080062474
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Chinese (zh)
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CN102741699B (en )
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仲辻俊之
森元刚
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松下电器产业株式会社
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Apparatus for testing electrical condition of accumulators or electric batteries, e.g. capacity or charge condition
    • G01R31/3606Monitoring, i.e. measuring or determining some variables continuously or repeatedly over time, e.g. current, voltage, temperature, state-of-charge [SoC] or state-of-health [SoH]
    • G01R31/362Monitoring, i.e. measuring or determining some variables continuously or repeatedly over time, e.g. current, voltage, temperature, state-of-charge [SoC] or state-of-health [SoH] based on measuring voltage only
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Apparatus for testing electrical condition of accumulators or electric batteries, e.g. capacity or charge condition
    • G01R31/3606Monitoring, i.e. measuring or determining some variables continuously or repeatedly over time, e.g. current, voltage, temperature, state-of-charge [SoC] or state-of-health [SoH]
    • G01R31/361Monitoring, i.e. measuring or determining some variables continuously or repeatedly over time, e.g. current, voltage, temperature, state-of-charge [SoC] or state-of-health [SoH] using current integration
    • G01R31/3613Monitoring, i.e. measuring or determining some variables continuously or repeatedly over time, e.g. current, voltage, temperature, state-of-charge [SoC] or state-of-health [SoH] using current integration without voltage measurement

Abstract

A full-charge capacity correction circuit comprises: an integration unit for integrating the value of the current flowing through a secondary battery and thereby calculating the integration value; first and second estimation units for estimating the storage ratios of the secondary battery as first and second storage ratios; a full-charge capacity correction unit that estimates the full-charge capacity value of the secondary battery on the basis of a difference integration value and the ratio between the difference between the first and second storage ratios and 1 and stores the estimated full-charge capacity value as a new full-charge capacity value, thereby correcting the full-charge capacity value, the difference integration value being the integration value integrated by the integration unit in the interval from the estimation of the first storage ratio by the first estimation unit to the estimation of the second storage ratio by the second estimation unit; and an open ratio estimation unit for, when an open voltage condition is satisfied, estimating the storage ratio of the secondary battery on the basis of the terminal voltage of the secondary battery, the open voltage condition being based on the condition that the current flowing through the secondary battery becomes less than an open determination value previously set for determining a condition under which an open voltage can be obtained as the terminal voltage of the secondary battery.

Description

满充电容量修正电路、充电系统、电池组件以及满充电容量修正方法 Full charge capacity correction circuit, a charging system, the battery pack and the method of correcting the full charge capacity

技术领域 FIELD

[0001] 本发明涉及对二次电池的满充电容量值进行修正的满充电容量修正方法、以及使用该方法的满充电容量修正电路、充电系统及电池组件。 [0001] The present invention relates to a method of correcting the full charge capacity, the full charge capacity and the use of the method of the full charge capacity value of the secondary battery correction circuit for correcting the charging system and the battery pack.

背景技术 Background technique

[0002] 从以往,二次电池广泛应用于便携式个人计算机或数码相机、摄像机、移动电话等电子设备、电动汽车或混合动力汽车等车辆、混合动力电梯、组合有太阳能电池或发电装置和二次电池的电源系统、不间断电源装置等电池搭载装置、系统等各种装置、系统中。 [0002] Historically, secondary batteries are widely used in portable personal computers, digital cameras, video cameras, mobile phones and other electronic devices, electric vehicles, hybrid vehicles such as automobiles, hybrid elevators, combined with a solar cell or power generating device and a secondary a battery power supply system, an uninterruptible power supply battery mounted on a variety of other means, system, system.

[0003] 而且,例如在便携式个人计算机等电子设备中,出于可用性的观点,显示充入二次电池的能够使用的剩余量、或在电池没电之前发出警报。 [0003] Further, in an electronic device, for example a portable personal computer or the like, for availability point of view, display charging the secondary battery remaining amount can be used, or a warning before the battery is dead.

[0004] 另外,在太阳能电池发电或混合动力汽车等系统中,出于对负载稳定供电的观点,需要使二次电池处于在一定程度上始终被充电的状态,另一方面,从吸收发电的剩余电力或再生电力的需要出发,为了避免二次电池处于满充电而无法充电的状态而进行充电控制,使充入的蓄电电量相对于满充电电量(FCC,Full Charge Capacity)的比率(百分率)SOC (State Of Charge,充电状态)例如在20%至80%的范围内推移。 [0004] Further, in the solar cell power generation system or the like in a hybrid car, stable power supply for the load point of view, the secondary battery is necessary to a certain extent always charged state, on the other hand, the power absorbed surplus regenerative power or starting power is needed, in order to avoid charging the secondary battery is in a fully charged state can not perform the charging control, so that the charged amount relative to full charging power storage quantity (FCC, full charge Capacity) the ratio (percentage ) SOC (state of charge, state of charge), for example, in the transition range of 20% to 80%.

[0005] 如此,为了检测充入二次电池的能够使用的剩余量或计算S0C,需要获知二次电池的满充电容量。 [0005] Thus, in order to detect the remaining amount of charge of the secondary battery can be used or calculated S0C, needs to know the full charge capacity of the secondary battery. 但是,由于二次电池的满充电容量伴随二次电池的劣化而减少,因此若直接使用出厂时的满充电容量而求出电池剩余量或S0C,则其误差变大。 However, since the full charge capacity of the secondary battery accompanied by deterioration of the secondary battery is reduced, thus obtaining the remaining battery capacity or the full charge if used directly when S0C factory, its error becomes large.

[0006] 对此已知有如下方法:即使在开始使用二次电池后,通过使二次电池从满充电状态起连续放电而完全放电,通过累计此时的放电电流来计算满充电容量,以此修正或更新满充电容量。 [0006] There is known a method for this: Even after the start of use of the secondary battery, the secondary battery by continuous discharge from the fully charged state is completely discharged, the discharge current is calculated by the full charge capacity at this time is integrated, in order to this correction or update the full charge capacity. 但是,这种方法为了修正满充电容量等,需要使在装置、系统中处于使用状态的二次电池从满充电状态起完全放电,因此修正满充电容量等的机会受限。 However, this method for correcting the full charge capacity, etc., required of the secondary battery is in use in a device, the system is completely discharged from the fully charged state, and therefore the correction of the full charge capacity and the like limited opportunities.

[0007] 因此,已知有如下方法:即使二次电池未被完全放电,通过检测从充电开始到二次电池达到满充电为止的充电电量,并将该充电电量与充电开始时的蓄电电量(充电开始剩余容量)相加,从而计算满充电容量(例如,参照专利文献I)。 [0007] Thus, there is known a method: even if the secondary battery is not fully discharged, the secondary battery from the charging starts by detecting the charge reaches full charge power, and charging the battery with the stored electricity quantity when the charge start (charging start remaining capacity) are added, to calculate the full charge capacity (e.g., refer to Patent Document I). 另外,在专利文献I中,记载了根据电池电压来决定充电开始时的蓄电电量的技术。 Further, Patent Document I describes that the battery voltage is determined according to the stored electricity quantity charged at the start of the art. 据此,即使二次电池未被完全放电,也能够修正满充电容量。 Accordingly, even if the secondary battery is not fully discharged, the full charge capacity can be corrected.

[0008] 在专利文献I所记载的方法中,当根据电池电压决定充电开始时的蓄电电量时,使用表示电池电压与蓄电电量(剩余容量)的关系的数据表。 [0008] In the method described in Patent Document I, when charging of power storage quantity determined at the start of the battery voltage, the use of table data representing the relationship between the battery voltage and the power storage quantity (remaining capacity). 在此,如专利文献I的图3所记载,电池的端子电压与蓄电电量(剩余容量)相对于满充电容量的比率)即SOC之间具有相关关系。 Here, as in FIG. 3 of Patent Document I described, the terminal voltage of the battery with the stored electricity quantity (the remaining capacity) with respect to the full charge capacity ratio) i.e. having a correlation between SOC.

[0009] 因此,必须先将电池的端子电压转换为S0C,并将该SOC的比率与满充电容量相乘,以此计算充电开始时的蓄电电量。 [0009] Thus, first must be converted into S0C terminal voltage of the battery, the SOC and the full charge capacity by multiplying the ratio of this calculation at the start of charging of power storage quantity. 但是,如此求出的充电开始时的蓄电电量由于是基于修正前的满充电容量来计算,因此包含满充电容量的误差。 However, such charging of power storage quantity calculated at the start because it is based on the full charge capacity is calculated before correction, and therefore contains an error of the full charge capacity.

[0010] 因此,存在将从充电开始起到二次电池达到满充电为止的充电电量与充电开始时的蓄电电量(充电开始剩余容量)相加而得到的满充电容量也包含误差的问题。 [0010] Accordingly, there is played from the start of charging the secondary battery reaches the fully charged battery capacity charged until the full charge and at the start of charging of power storage quantity (remaining capacity of the charging start) obtained by adding the issue also contains an error.

[0011] 专利文献I :日本专利公开公报特开2006-177764号 [0011] Patent Document I: Japanese Patent Publication Laid-Open Publication No. 2006-177764

发明内容 SUMMARY

[0012] 本发明的目的在于提供一种能够增大满充电容量的修正机会,并且与专利文献I所记载的方法相比能够提高满充电容量的修正精度的满充电容量修正电路、充电系统、电池组件以及满充电容量修正方法。 [0012] The object of the present invention is to provide an opportunity to increase correction of the full charge capacity, as compared with the method described in Patent Document I can improve the correction accuracy of the full charge capacity of the full charge capacity correction circuit, a charging system, battery pack and a method of correcting the full charge capacity.

[0013] 本发明的一方面所涉及的满充电容量修正电路包括:累计部,通过累计流经二次电池的电流的电流值而计算累计值;容量存储部,存储表示所述二次电池的满充电容量的满充电容量值;第I推定部,当满足作为能够推定蓄电比率的条件的可推定条件时,将所述二次电池的蓄电比率推定为第I蓄电比率,其中,所述蓄电比率为蓄积于所述二次电池中的蓄电电量相对于该二次电池的实际的满充电容量的比率;第2推定部,在由所述第I推定部推定所述第I蓄电比率之后,监视是否满足作为能够推定所述蓄电比率的条件的可推定条件,当满足该可推定条件时,将此时的所述二次电池的蓄电比率推定为第2蓄电比率;满充电容量修正部,基于差值累计值以及所述第I蓄电比率和所述第2蓄电比率之差与I的比率,推定所述二次电池的满充电容量值,通过将该推定出 [0013] The full charge capacity correction circuit of an aspect of the present invention comprises: accumulation unit, calculates the current value flowing in the secondary battery integrated current accumulated value; capacity storage unit, the secondary battery stores a full charge capacity value of the full charge capacity; second estimation unit I, as a condition when the estimated power storage ratio can be estimated condition is satisfied, the ratio of the secondary storage battery is estimated as the ratio of the first power storage I, wherein the ratio is stored in the storage of the secondary battery with respect to the ratio of the actual power storage quantity of the full charge capacity of the secondary battery; second estimation unit, by the first estimation unit estimates the second I after storage I ratio, as a condition of the power storage ratio can be estimated may be estimated condition monitoring is satisfied, when satisfying the condition can be estimated, the estimated ratio of the power storage of the secondary battery at this time is the second accumulator power ratio; full charge capacity correction unit based on the difference between the integrated value and the ratio of the difference between I and I power storage ratio of the second power storage ratio, the estimated value of the full charge capacity of the secondary battery, by the estimated 满充电容量值作为新的满充电容量值存储于所述容量存储部来修正满充电容量值,其中,所述差值累计值为在所述第I推定部推定所述第I蓄电比率起至所述第2推定部推定所述第2蓄电比率为止的期间由所述累计部累计的累计值;开路比率推定部,将开路电压条件作为所述可推定条件,当满足该开路电压条件时,基于所述二次电池的端子电压推定所述二次电池的蓄电比率,其中,所述开路电压条件以当流经所述二次电池的电流小于用于判定该二次电池的端子电压是否为开路电压而预先设定的开路判定值为条件;以及修正控制部,将所述第I推定部和所述第2推定部中的至少一个设定为所述开路比率推定部。 The full charge capacity value as the new value of the full charge capacity stored in the mass storage unit corrects the full charge capacity value, wherein the difference in the integrated value I of the first estimation unit estimates power storage ratio from I to the second estimation section estimating the second period until the ratio of the storage of the integral value of the integrating unit; open ratio estimation unit, the open-circuit voltage condition as the condition may be estimated, when the open-circuit voltage condition satisfied when the terminal voltage of the secondary battery based on the estimated ratio of the secondary storage battery, wherein, when the open-circuit voltage condition to a current flowing through the secondary battery is less than a determination of the secondary battery terminal an open circuit voltage is a predetermined voltage value determined open condition; and correction control section, the first section I and the second estimation section estimating at least one open ratio is set to the estimation unit.

[0014] 另外,本发明的另一方面所涉及的充电系统,包括:上述的满充电容量修正电路;以及充电部,通过对所述二次电池施加该二次电池的满充电电压而进行充电,其中,所述满充电检测部,当在所述充电部的充电过程中流经该二次电池的电流小于预先设定的判定阈值时,判定为该二次电池处于满充电。 [0014] Further, a charging system according to another aspect of the present invention, comprising: a full charge capacity of the above-described correction circuit; and a charging unit to charge by the full charge voltage of the secondary battery of the secondary battery wherein said full charge detecting unit, when the current flowing through the secondary battery during the charging process of the charging portion is less than a predetermined determination threshold, it is determined that the secondary battery is fully charged.

[0015] 另外,本发明的又一方面所涉及的电池组件,包括:上述的满充电容量修正电路、以及所述二次电池。 [0015] Further, another aspect of the present invention relates to a battery pack, comprising: a full charge capacity of the above-described correction circuit, and the secondary battery.

[0016] 另外,本发明的又一方面所涉及的满充电容量修正方法,包括以下工序:累计工序,通过累计流经二次电池的电流的电流值而计算累计值;第I推定工序,当满足作为能够推定蓄电比率的条件的可推定条件时,将所述二次电池的蓄电比率推定为第I蓄电比率,其中,所述蓄电比率为蓄积于所述二次电池中的蓄电电量相对于该二次电池的实际的满充电容量的比率;第2推定工序,在所述第I推定工序推定所述第I蓄电比率之后,监视是否满足作为能够推定所述蓄电比率的条件的可推定条件,当满足该可推定条件时,将此时的所述二次电池的蓄电比率推定为第2蓄电比率;满充电容量修正工序,基于差值累计值、以及所述第I蓄电比率和所述第2蓄电比率之差与I的比率,推定所述二次电池的满充电容量值,并将该推定出的满充电容量值作为新的满充电容量值 [0016] Further, the full charge capacity correcting method according to another aspect of the present invention, comprising the following steps: Step total, is calculated by integrating the value of the current flowing through the current integrated value of the secondary battery; a first estimating step I, when conditions can be estimated as the ratio of the power storage conditions may be estimated, the estimated ratio of the secondary storage battery storage for the first I ratio, wherein the ratio is stored in the storage of the secondary battery the ratio of the actual power storage quantity of the full charge capacity of the secondary battery; a second estimating step, after estimating the second I step I of the estimated power storage ratio, as can be satisfied monitors whether the estimated power storage conditions may be estimated rate condition is satisfied when the presumed conditions, the ratio of the storage case of the secondary battery estimated as the ratio of the second power storage; full charge capacity correction step, based on the integrated value of the difference, and I ratio of the first power storage and the ratio of the difference between the second power storage and I ratio, the estimated value of the full charge capacity of the secondary battery, and the estimated full charge capacity value as a new full charge capacity value 而修正该满充电容量值,其中,该差值累计值为在所述第I推定工序推定所述第I蓄电比率起至在所述第2推定工序推定所述第2蓄电比率为止的期间,通过所述累计工序累计出的累计值;以及开路比率推定工序,将开路电压条件作为所述可推定条件,当满足该开路电压条件时,基于所述二次电池的端子电压推定所述二次电池的蓄电比率,其中,所述开路电压条件以当流经所述二次电池的电流小于用于判定该二次电池的端子电压是否为开路电压而预先设定的开路判定值为条件,其中,将所述第I推定工序和所述第2推定工序中的至少一个工序设定为所述开路比率推定工序。 And correcting the full charge capacity value, wherein the difference in the integrated value I of the first estimating step of estimating power storage I ratio until the estimation in the second step until the estimation of the ratio of the second power storage period, the accumulated step by an integrated value integrated; ratio estimating step, and open, the open-circuit voltage condition as the condition may be estimated, when the open-circuit voltage condition is satisfied, based on the terminal voltage of said secondary battery estimated the ratio of storage of the secondary battery, wherein, when the open-circuit voltage condition to a current flowing through the secondary battery is less than the terminal voltage for determining whether or not the open-circuit voltage of the secondary cell is previously set in the open determination value conditions, wherein said first estimating step I and the at least one step is set to the open ratio estimating step of estimating the second step.

附图说明 BRIEF DESCRIPTION

[0017] 图I是表示包括使用本发明的一实施方式所涉及的满充电容量修正方法的满充电容量修正电路的电池组件以及充电系统的结构的一例的框图。 [0017] Figure I is a block diagram showing an example of the configuration of a battery pack and a charging system of the full charge capacity of the full charge capacity using the correction method of the present invention to an embodiment of the compensation circuit.

[0018] 图2是表示图I所示的控制部的一例的框图。 [0018] FIG. 2 is a block diagram showing an example of a control unit shown in FIG. I.

[0019] 图3是表示存储在图I所示的表存储部中的查找表的一例的说明图。 [0019] FIG. 3 is an explanatory view showing an example in the table storage unit shown in FIG. I lookup table stored.

[0020] 图4是表示图I所示的满充电容量修正电路的动作的一例的流程图。 [0020] FIG 4 is a flowchart showing an example of the full charge capacity correction circuit shown in FIG. I operation.

[0021] 图5是表示图I所示的满充电容量修正电路的动作的一例的流程图。 [0021] FIG. 5 is a flowchart showing an example of the full charge capacity correction circuit shown in FIG. I operation.

[0022] 图6是表示图I所示的满充电容量修正电路的动作的一例的流程图。 [0022] FIG 6 is a flowchart showing an example of the full charge capacity correction circuit I shown in operation.

[0023] 图7是表示图I所示的满充电容量修正电路的动作的一例的流程图。 [0023] FIG. 7 is a flowchart showing an example of the full charge capacity correction circuit shown in FIG. I operation.

[0024] 图8是表示图I所示的满充电容量修正电路的动作的一例的流程图。 [0024] FIG 8 is a flowchart showing an example of the full charge capacity correction circuit shown in FIG. I operation.

[0025] 图9是用于说明使用开路比率推定部作为第I推定部,并使用满充电比率推定部作为第2推定部时的满充电容量值FCC的修正方法的说明图。 [0025] FIG. 9 is a diagram illustrating the open-circuit as the ratio estimation portion estimating section I, and the use of the full charge rate when the full charge capacity estimating unit estimating a second section of the correction value for the FCC FIG.

[0026] 图10是用于说明使用开路比率推定部作为第I推定部,并使用满充电比率推定部作为第2推定部时的满充电容量值FCC的修正方法的说明图。 [0026] FIG. 10 illustrates the ratio of the open-circuit as the first estimating portion estimating section I, and the use of the full charge rate when the full charge capacity estimating unit estimating a second section of the correction value for the FCC FIG.

[0027] 图11是用于说明使用开路比率推定部作为第I推定部,并使用基准比率推定部作为第2推定部时的满充电容量值FCC的修正方法的说明图。 [0027] FIG. 11 is a ratio of the open-circuit as the first estimating portion estimating section I, and using the value of the correction method of FIG FCC explanatory when reference full charge capacity estimating unit as the ratio of the second estimating portion.

[0028] 图12是用于说明使用开路比率推定部作为第I推定部,并使用基准比率推定部作为第2推定部时的满充电容量值FCC的修正方法的说明图。 [0028] FIG. 12 is a ratio of the open-circuit as the first estimating portion estimating section I and used as the reference value of the correction ratio estimation portion of the FCC explanatory diagram when the full charge capacity of the second estimating portion.

[0029] 图13是用于说明使用开路比率推定部作为第I推定部以及第2推定部时的满充电容量值FCC的修正方法的说明图。 [0029] FIG. 13 is used for explaining the ratio of the open portion estimating an explanatory view of correcting the FCC unit, and I estimating full charge capacity estimating unit when the second value.

[0030] 图14是用于说明使用开路比率推定部作为第I推定部以及第2推定部时的满充电容量值FCC的修正方法的说明图。 [0030] FIG. 14 is a value of the correction method of FIG FCC explanatory full charge capacity when the open-circuit I ratio estimation portion as the first portion and the second estimation section for estimating explanation.

具体实施方式 detailed description

[0031] 下面,基于附图说明本发明所涉及的实施方式。 [0031] Hereinafter, embodiments of the present invention will be described based on the drawings. 此外,在各图中标注相同符号的结构表示相同的结构,并省略其说明。 Further, the same reference numerals in the drawings denote the same structural configuration, and the description thereof will be omitted. 图I是表示包括使用本发明的一实施方式所涉及的满充电容量修正方法的满充电容量修正电路5的电池组件2以及充电系统I的结构的一例的框图。 Figure I is a block diagram showing a configuration of the full charge capacity of the full charge capacity of the present invention comprises the use of an embodiment of a method of correcting the correction circuit 5 of the battery pack 2 and the charging of the system I. 图I所示的充电系统I组合电池组件2和设备侧电路3而构成。 The charging system shown in FIG. I I assembled battery assembly 2 and the apparatus-side circuit 3 is configured.

[0032] 充电系统I例如是便携式个人计算机或数码相机、移动电话等电子设备、电动汽车或混合动力汽车等车辆等的电池搭载设备系统。 Battery [0032] The charging system I, for example, a portable personal computers, digital cameras, mobile phones and other electronic devices, electric vehicles, hybrid vehicles and other vehicle-mounted device system. 并且,设备侧电路3例如为这些电池搭载设备系统的主体部分,负载电路34是在这些电池搭载设备系统中基于来自电池组件2的电力供应而动作的负载电路。 Further, the apparatus main body side circuit portion 3, for example, these battery-mounted device of the system, the load circuit 34 is a battery mounted in the device system based on the power supply a load circuit operates from the battery pack 2. [0033] 电池组件2包括:二次电池4、满充电容量修正电路5、电流检测阻抗6、温度传感器7、开关元件Q1、Q2、以及连接端子11、12、13。 [0033] 2 cell assembly comprising: a secondary battery 4, the full charge capacity correction circuit 5, a current detection resistor 6, the temperature sensor 7, the switching elements Q1, Q2, 12, 13 and a connection terminal. 另外,满充电容量修正电路5包括:控制部50、电压检测部51、电流检测部52、温度检测部53、以及通信部54。 Further, the full charge capacity correction circuit 5 comprises: a control section 50, the voltage detection unit 51, a current detection unit 52, the temperature detecting section 53, and a communication section 54.

[0034] 此外,充电系统I并不限于电池组件2与设备侧电路3能够分离的结构,也可以由充电系统I整体构成一个满充电容量修正电路5。 [0034] In addition, the charging system I is not limited to the battery pack 2 side circuit 3 and the device can be separate structures, may be I integrally constitute a full charge capacity correction circuit 5 by the charging system. 另外,还可以由电池组件2与设备侧电路3分担满充电容量修正电路5的结构要素。 Further, the constituent elements may share the full charge capacity by the correction circuit 5 of the battery pack 2 side circuit 3 and the device. 另外,二次电池4并不必须形成为电池组件,例如满充电容量修正电路5也可以构成车载用的E⑶(Electric Control Unit,电子控制单元)。 Further, the secondary battery 4 does not have to be formed as a battery assembly, for example, the full charge capacity correction circuit 5 may be configured E⑶ (Electric Control Unit, Electronic Control Unit) in the vehicle.

[0035] 设备侧电路3包括:连接端子31、32、33、负载电路34、充电部35、通信部36、控制部37、以及显示部38。 [0035] The apparatus-side circuit 3 comprises: a connection terminal 31, 32, a load circuit 34, a charging unit 35, a communication unit 36, a control unit 37, and a display unit 38. 充电部35与供电用连接端子31、32连接,通信部36与连接端子33连接。 Charging the power supply unit 35 is connected to the connection terminals 31 and 32, the communication unit 36 ​​is connected to the connection terminal 33. [0036] 另外,当电池组件2安装于设备侧电路3上时,电池组件2的连接端子11、12、13分别与设备侧电路3的连接端子31、32、33连接。 [0036] Further, when the battery pack 2 is mounted on the device-side circuit 3, the battery pack 2 are respectively connected to terminals 12, 13 connected to the connection terminals 32, 33 of the device-side circuit 3.

[0037] 通信部54、36是能够经由连接端子13、33互相收发数据的通信接口电路。 [0037] The communication unit is capable of communication interface circuit 54,36 13,33 mutually transmitting and receiving data via the connection terminal.

[0038] 充电部35是经由连接端子31、32向电池组件2供应与来自控制部37的控制信号相对应的电流、电压的电源电路。 [0038] The charging unit 35 is supplied to the battery pack 2 via the connecting terminal 31 to the power supply control signal from the control circuit section 37 corresponding to current and voltage. 充电部35可以是由例如商用电源电压生成电池组件2的充电电流的电源电路,也可以是基于例如太阳光、风力、或水力等自然能来发电的发电装置、或通过内燃机等动力来发电的发电装置等。 Charging portion 35 may be made, for example, the power supply circuit of a charging current of the commercial power supply voltage generation cell modules 2, may be based on the power generation device, such as the like sunlight, wind power, or water natural energy to generate electricity, or to generate electricity by power from the engine or the like power generating device and the like.

[0039] 显示部38例如使用液晶显示器或LED (Light Emitting Diode,发光二极管)。 [0039] The display unit 38, for example, a liquid crystal display or an LED (Light Emitting Diode, LED). 此夕卜,例如设备侧电路3为便携式个人计算机或数码相机等电子设备时,也可以使用该电子设备具备的液晶显示器等显示装置作为显示部38。 Bu this evening, for example, the device-side circuit 3 is a digital camera or a portable personal computer and other electronic devices, may be a liquid crystal display of the electronic device includes a display device such as a display unit 38.

[0040] 控制部37例如是使用微电脑构成的控制电路。 [0040] The control unit 37 is, for example, using a control circuit composed of a microcomputer. 而且,当通信部36接收从电池组件2的控制部50通过通信部54发送的请求指示时,控制部37按照通信部36接收到的请求指示来控制充电部35,使充电部35向连接端子11、12输出与从电池组件2发送的请求指示相对应的电流和电压。 Further, when the communication unit 36 ​​receives the request indication sent by the communication unit 54 from the control unit of the battery pack 2 is 50, the control unit 37 in accordance with a request instructs the communication unit 36 ​​receives the controlled charging unit 35, the charging unit 35 to the connection terminals 11 indicating the output currents and voltages corresponding to the request sent from the battery pack 2.

[0041] 在电池组件2中,连接端子11经由开关元件Q2和开关元件Ql与二次电池4的正极连接。 [0041] In the battery pack 2, the positive connection terminal 11 is connected via a switching element Q2 and switching element Ql and the secondary battery 4. 作为开关元件Ql和开关元件Q2,例如可以使用p沟道的FET (Field EffectTransistor,场效应晶体管)。 As the switching element Ql and switching element Q2, for example using FET p-channel (Field EffectTransistor, field effect transistors).

[0042] 开关元件Ql的寄生二极管的阴极朝向二次电池4的方向,如果断开则仅切断二次电池4的放电方向的电流。 [0042] The parasitic diode of the switching element Ql toward the cathode of the secondary battery 4, the direction of the discharge current of secondary battery 4 is disconnected if only off. 另外,开关元件Q2的寄生二极管的阴极设定为连接端子11的方向,如果断开则仅切断二次电池4的充电方向的电流。 The cathode of the parasitic diode set switch element Q2 is connected to terminal 11 in a direction, the direction of the charging current of the secondary battery 4 is disconnected if only off. 开关元件Q1、Q2通常导通,在异常时断开从而保护二次电池。 Switching elements Q1, Q2 is usually turned OFF to protect the secondary battery is abnormal.

[0043] 另外,连接端子12经由电流检测阻抗6与二次电池4的负极连接,构成从连接端子11经由开关元件Q2、开关元件Q1、二次电池4以及电流检测阻抗6至连接端子12的电流路径。 [0043] Further, the connecting terminal 12 via a current detection resistor connected to the negative electrode of the secondary battery 6 and 4, the terminal 12 constituting the connection terminal 11 Q2, the switching element Q1, and the secondary battery 4 is connected to the current detection resistor 6 via the switching element from current path.

[0044] 此外,连接端子11、12、13、31、32、33只要是将电池组件2和设备侧电路3电连接的结构即可,例如可以是电极或连接器(connector)、端子台(terminal block)等,也可以是面(land)或垫(pad)等布线图案。 [0044] In addition, as long as the connection terminals 11,12,13,31,32,33 structure 2 to the battery pack and the apparatus-side circuit 3 is electrically connected to, for example, may be an electrode or a connector (Connector), terminal base ( terminal block) and the like, may also be surface (Land) or pad (pAD) like a wiring pattern.

[0045] 电流检测阻抗6是电流检测用的所谓的分流阻抗,将二次电池4的充电电流和放电电流转换为电压值。 [0045] The current detection resistor 6 is a so-called shunt resistor for current detection, the charging current and the discharging current of the secondary battery 4 into a voltage value. 此外,代替电流检测阻抗6,例如也可以使用电流互感器或霍尔元件等电流检测元件,或者开关元件Ql、Q2的导通电阻。 Further, instead of the current detection resistor 6, for example, using a current detecting element may be a current transformer or a Hall element or the like, or the switching element Ql, Q2 on-resistance.

[0046] 温度传感器7例如使用热敏电阻(thermistor)或热电偶等感热元件构成,例如紧贴于二次电池4或者设置在二次电池4的附近。 [0046] The temperature sensor 7, for example using a thermistor (THERMISTOR) thermal or thermocouple element constituted, for example, or close to the secondary battery 4 is provided in the vicinity of the secondary battery 4. 而且,温度传感器7向温度检测部53输出表示二次电池4的温度t的电压信号。 Further, t represents the temperature of the temperature sensor 7 of the secondary battery 4 outputs a voltage signal 53 to the temperature detecting section.

[0047] 二次电池4例如可以是单电池,例如可以是串联连接多个二次电池的组电池,例如也可以是并联连接多个二次电池的组电池,还可以是组合串联与并联而连接的组电池。 [0047] The secondary battery 4, for example, the cell may be, for example, may be assembled battery series connecting a plurality of secondary batteries, for example, may be assembled battery are connected in parallel to a plurality of secondary batteries, it may be a combination of series and parallel and the battery pack is connected. 作为二次电池4,例如使用锂离子二次电池。 As the secondary battery 4, for example, a lithium ion secondary battery. 此外,二次电池4并不限于锂离子二次电池,例如可以使用镍氢二次电池或镍镉二次电池等各种二次电池。 In addition, the secondary battery 4 is not limited to a lithium ion secondary battery, for example, nickel-hydrogen secondary battery or a nickel cadmium secondary battery and other secondary battery.

[0048] 但是,由于后述的开路比率推定部503、电压换算比率获取部505基于二次电池4的端子电压值Vb推定二次电池4的S0C,因此与镍氢二次电池或镍镉二次电池相比,端子电压的变化量相对于二次电池4的剩余量的变化更大的锂离子二次电池更适合作为二次电池4。 [0048] However, since the open ratio estimation unit 503 will be described later, the voltage conversion ratio acquisition unit 505 estimates the secondary battery 4 based on S0C terminal voltage value Vb of the secondary battery 4, and therefore the nickel-hydrogen secondary battery or a nickel cadmium two compared to a secondary battery, the terminal voltage change amount with respect to the larger variation of the secondary battery remaining amount of the lithium ion secondary battery 4 is more suitable as the secondary battery 4.

[0049] 电压检测部51例如使用模拟数字转换器构成,检测二次电池4的端子电压(端子间电压),并向控制部50输出表不该端子电压值Vb的信号。 [0049] The voltage detecting unit 51 is configured using an analog to digital converter, the voltage detection terminal (inter-terminal voltage) of the secondary battery 4, and 50 signal output terminal voltage value table should Vb of the control unit.

[0050] 电流检测部52例如使用模拟数字转换器构成,检测电流检测阻抗6的两端间的电压Vr,并将表示该电压Vr的信号作为表示流经二次电池4的电流值Ic的信息而输出至控制部50。 [0050] The current detection unit 52, for example, using an analog to digital converter, and detects a current detection resistor 6 a voltage Vr between the two ends, and Vr represents the voltage signal as the information indicates a current value flowing in the secondary battery 4, Ic, is output to the control unit 50. 另外,对于表示电流值Ic的信息(电压Vr),电流检测部52例如以正值表示对二次电池4充电的方向,以负值表示将二次电池4放电的方向。 Further, with the information of the current value Ic (voltage Vr), said current detection unit 52, for example, as a positive value for the direction of charging the secondary battery 4, a negative value indicates the direction of the secondary battery 4 discharges.

[0051] 在控制部50中,通过将该电压Vr除以电流检测阻抗6的电阻值R而获取流经二次电池4的电流值Ic0电流值Ic以正值表示二次电池4的充电电流,以负值表示二次电池4的放电电流。 [0051] In the control unit 50, and the voltage Vr obtained by dividing the resistance value of the current detection resistor R 6 flowing through the secondary battery current value Ic0 current value Ic of 4 as a positive value of the charging current of the secondary battery 4 , a negative value represents a discharge current of the secondary battery 4.

[0052] 温度检测部53例如使用模拟数字转换器构成,将从温度传感器7输出的电压信号转换为数字值,并将其作为表示温度t的信号向控制部50输出。 [0052] The temperature detecting unit 53, for example, using an analog to digital converter is configured, the output voltage signal from the temperature sensor 7 into a digital value, and as an output representing the temperature signal to the control unit t 50.

[0053] 图2是表示图I所示的控制部50的一例的框图。 [0053] FIG. 2 is a block diagram showing an example of a control unit 50 shown in FIG. I. 控制部50例如包括执行指定的运算处理的CPU (Central Processing Unit,中央处理单元);存储有指定的控制程序的ROM (Read Only Memory,只读存储器);临时存储数据的RAM (Random Access Memory,随机存取存储器);例如使用ROM构成的容量存储部509和表存储部510 ;以及它们的周边电路等构成。 The control unit 50 includes, for example performing predetermined arithmetic processing of the CPU (Central Processing Unit, central processing unit); ROM stores a predetermined control program (Read Only Memory, Read-Only Memory); temporarily stores data RAM (Random Access Memory, random access memory); for example, the capacity of the storage unit 509 and a table storage unit 510 ROM configuration; and their peripheral circuits and the like.

[0054] 而且,控制部50通过执行例如存储在ROM中的控制程序,从而作为充电控制部501 (满充电检测部)、电流累计部502 (累计部)、开路比率推定部503、满充电比率推定部504、电压换算比率获取部505、基准比率推定部506、修正控制部507以及满充电容量修正部508而发挥功能。 [0054] Further, the control unit 50 by executing, for example, a control program stored in the ROM, so that a charging control unit 501 (the full charging detection unit), a current accumulation unit 502 (integrated unit), an open ratio estimation portion 503, the full-charge ratio estimation unit 504, a voltage conversion ratio acquiring unit 505, the reference ratio estimating unit 506, correction control unit 507 and full charge capacity correction section 508 functions.

[0055] 充电控制部501 (满充电检测部)例如在用户将图示省略的AC适配器与充电部35连接等而开始充电时,从控制部37接收用户将开始充电的通知。 [0055] The charging control unit 501 (full charge detecting unit) will be illustrated, for example, a user notification AC adapter and the charging unit 35 is connected to the like omitted when charging is started, the control unit 37 receives a user from the start of charging.

[0056] 而且,充电控制部501经由通信部54向设备侧电路3输出请求供应指定的充电电流或充电电压的指示信号,从而控制充电部35的动作。 [0056] Further, the charge control section 501 supplies a request signal indicating the specified charging current or charging voltage side circuit to the output device 3 via the communication unit 54, thereby controlling the operation of the charging portion 35. 而且,充电控制部501使充电部35执行例如CCCV(Constant Current Constant Voltage,恒流恒压)充电。 Further, the charging control unit 501 causes the charging unit 35 performs, for example, CCCV (Constant Current Constant Voltage, constant current) charge.

[0057] 然后,充电控制部501使充电部35输出二次电池4的满充电电压从而执行CV充电(恒压充电),在CV充电的执行过程中,当由电流检测部52检测到的电流值Ic小于作为充电的结束条件而预先设定的判定阈值Ie时,判定为二次电池4满充电,并结束充电部35的充电动作。 [0057] Then, the charging control unit 501 causes the charging unit 35 outputs the full charge voltage of the secondary battery 4 is charged so as to perform CV (constant voltage charge), during the execution of the CV charge, when the current detected by the current detecting section 52 Ic value is less than determination threshold value Ie as the charging termination condition set in advance, it is determined that the secondary battery 4 is fully charged, and ends the charging operation of the charging portion 35. 此时,充电控制部501向满充电比率推定部504和修正控制部507通知二次电池4达到满充电。 At this time, the charge control unit 501 and the estimation unit 504 correction control unit 507 to notify the full charge rate of the secondary battery 4 is fully charged.

[0058] 判定阈值Ie例如被设定为0.05It左右。 [0058] The determination threshold value is set to about Ie e.g. 0.05It. 在此,IIt (电池容量(Ah)/1(h))是将二次电池的标称容量值以IIt的电流值进行放电时,二次电池的剩余容量以I小时就达到零的电流值。 Here, IIt (battery capacity (Ah) / 1 (h)) is the nominal capacity value of the secondary battery is discharged at a current value IIt, the remaining capacity of the secondary battery to reach the current value I h to zero .

[0059] 此时,充电控制部501相当于满充电检测部的一例。 [0059] At this time, the charge control unit 501 corresponds to one case of the full charge detecting unit. 此外,充电控制部501并不限于进行CCCV充电的例子,也可以使用其他充电方式进行充电。 Further, the charge control unit 501 is not limited to the example for CCCV charging, charging may be used for charging other. 充电控制部501无论采用何种充电方式,只要在满足该充电方式下的充电结束条件而二次电池4达到满充电时,向满充电比率推定部504和修正控制部507通知该二次电池4达到满充电即可。 Regardless of the charge control unit 501 uses charging, the charging end condition is satisfied as long as the charging mode and the secondary battery 4 reaches full charge, the secondary battery 4 to notify the full charge rate estimating section 504 and the correction control section 507 to reach full charge.

[0060] 在容量存储部509中,例如在电池组件2出厂时预先存储有作为初始值的满充电容量值FCC(Full Charge Capacity)。 [0060] In the mass storage section 509, for example, stored in advance as an initial value of the full charge capacity value FCC (Full Charge Capacity) when the battery pack 2 factory. 满充电容量值FCC的初始值例如预先存储有通过理论计算或实际测量而测出的值。 Initial value of the full charge capacity FCC, for example, stored in advance by theoretical calculation or actual value measured and measured. 另外,存储在容量存储部509中的满充电容量值FCC由满充电容量修正部508适当修正。 Further, the full charge capacity stored in the mass storage section 509 by a value of 508 FCC proper correction portion correcting the full charge capacity.

[0061] 表存储部510中预先存储有查找表LT,该查找表LT将以百分率表示蓄电电量相对于二次电池4的实际的满充电容量的比率即蓄电比率的值RS0C(Relative State OfCharge,相对充电状态)、流经二次电池4的电流值Ic以及二次电池的温度t与二次电池4的端子电压值Vb相对应。 [0061] The table storage unit 510 stores in advance a lookup table LT, LT up table stored electricity quantity will be expressed as a percentage relative to the ratio of the actual full charge capacity of the secondary battery 4, i.e., the ratio value of the power storage RS0C (Relative State OfCharge, relative state of charge), the current value Ic flowing through the secondary battery 4, and t the temperature of the secondary battery and the terminal voltage value Vb of the secondary battery 4, respectively.

[0062] 图3是表示存储在图I所示的表存储部510中的查找表LT的一例的说明图。 [0062] FIG. 3 is a diagram illustrating an example of a lookup table LT in the table storage unit 510 shown in FIG. I store. 图3 (a)表示RSOC为95%时的端子电压值Vb (Vila至V54a)、电流值Ic、二次电池4的温度t之间的对应关系。 FIG. 3 (a) represents the terminal voltage value of RSOC 95% of Vb (Vila to V54a), the correspondence between the current value Ic, the temperature of the secondary battery 4 t. 图3(b)表示RSOC为50%时的端子电压值Vb (VI Ib至V54b)、二次电池4的电流值Ic、二次电池4的温度t之间的对应关系。 FIG 3 (b) indicates the terminal voltage of RSOC is 50% of the value of Vb (VI Ib to V54b), a correspondence relationship between the current value Ic of the secondary battery 4, the temperature of the secondary battery 4 t. 图3(c)表示RSOC为5. 5%时的端子电压值Vb (Vllc至V54c)、电流值Ic、二次电池4的温度t之间的对应关系。 FIG. 3 (c) indicates a terminal voltage value RSOC is 5.5% of Vb (Vllc to V54c), a current value Ic, the corresponding relationship between the temperature t of the secondary battery 4.

[0063] 图3所示的查找表LT是例如将使用新的二次电池4并通过实验测量出的数据预先存储在ROM中而构成的。 [0063] The lookup table LT shown in FIG. 3, for example, will use the new secondary battery 4 and experimentally measured data stored in advance in the ROM constituted. 在图3中,例示了与RSOC为95%、50%、5. 5%相对应的查找表LT,但表存储部510中存储有与RSOC为0%至100%的整个范围相对应的查找表LT。 In Figure 3, it illustrates the RSOC of 95%, 50%, 5.5% corresponding to the lookup table LT, but the table storage unit 510 stores a RSOC 0% to 100% of the entire range corresponding to the lookup table LT.

[0064] 在此,二次电池4的蓄电电量越多,即RSOC越大,则端子电压值Vb越高,因此,在电流值Ic以及温度t相等的条件下,在图3(a)、(b)、(C)中为V**a > V**b > O为任意的一个字符)的关系。 [0064] Here, the more the storage amount of the secondary battery 4, i.e. RSOC is larger, the higher the value of the terminal voltage Vb, and therefore, at a current value Ic, and uniform temperature conditions of t, in FIG. 3 (a) , (b), (C) for V ** a> V ** b> O is an arbitrary character) relationship.

[0065] 另外,当电流流经二次电池4时,由于因二次电池4的内阻而产生的电压,电流值Ic越大则端子电压值Vb越高。 [0065] Further, when the current flowing in the secondary battery 4, since due to the internal resistance of the secondary battery 4 generates a voltage, current value Ic greater the higher the value of the terminal voltage Vb. 即,充电时充电电流增大,电流值Ic的值越大则端子电压值Vb越高。 That is, the charging current increases when the charging current value Ic greater the value of the terminal voltage is higher the value Vb. 另一方面,放电时放电方向的电流减少,负值即电流值Ic的绝对值减小,即电流值Ic越大则端子电压值Vb越高(端子电压值Vb的下降量变少)。 On the other hand, when the discharge current in the discharge direction is reduced, i.e., the absolute value of a negative current value Ic decreases, i.e., the larger the current value Ic value of the terminal voltage (the terminal voltage value Vb is less decreased amount) Vb higher.

[0066] 因此,在图3(a)、(b)、(c)中,在RSOC以及温度t相等的条件下,为Vl** < V2**< V3** < V4**(*为任意的一个字符)的关系。 [0066] Thus, in FIG. 3 (a), (b), (c), under equal conditions of temperature and RSOC t, is Vl ** <V2 ** <V3 ** <V4 ** (* is the relationship between any one character) is.

[0067] 另外,二次电池4的RSOC与端子电压值Vb之间的对应关系根据温度t而变化,一般而言,温度t越高,则与同一RSOC对应的端子电压值Vb越下降。 [0067] Further, the correspondence relationship between the terminal voltage value Vb and the RSOC secondary battery 4 varies depending on the temperature t, in general, the higher the temperature t, the same RSOC terminal voltage value Vb corresponding to the decrease. 因此,在图3(a)、(b)、(c)中,在RSOC以及电流值Ic相等的条件下,为V*l* > V*2* > V*3* > 为任意的一个字符)的关系。 Thus, in FIG. 3 (a), (b), (c), in the RSOC and conditions equal current value Ic, as V * l *> V * 2 *> V * 3 *> a character arbitrary )Relationship.

[0068] 此外,根据构成电池的正极、负极的材料不同,当温度t升高时,也存在与同一RSOC对应的端子电压值Vb上升的情况。 [0068] Further, according to the positive electrode constituting the battery, the negative electrode of different materials, when the temperature t increases, there are cases where the same RSOC corresponding to the terminal voltage value Vb rises. 因此,图3(a)、(b)、(c)中的V*l*、V*2*、V*3*、V*4*的关系根据二次电池4的特性适当设定即可。 Thus, FIG. 3 (a), (b), (c) the V * l *, V * 2 *, V * 3 *, V * 4 * relationship appropriately set according to characteristics of the secondary battery 4 .

[0069] 此外,图3所示的查找表LT将RS0C、端子电压值Vb、电流值Ic以及二次电池4的温度t相对应,但查找表LT也可以不将二次电池4的温度t作为参数而包含。 [0069] Further, as shown in FIG. 3 will lookup table LT RS0C, the terminal voltage value Vb, the current value Ic and a secondary battery corresponding to a temperature t of 4, but the look-up table LT may or may not be the temperature of the secondary battery 4 t as the parameters included. 另外,查找表LT还可以不将温度t和电流值Ic作为参数而包含。 Further, the lookup table LT may not also the temperature t and the current value Ic as parameters contained.

[0070] 电流累计部502通过按每单位时间累计由电流检测部52检测出的电流值Ic而计算充入二次电池4的蓄电电量来作为蓄电电量Q(累计值)。 [0070] Current accumulation unit 502 calculates the secondary battery charged by the power storage quantity 4 per unit time is accumulated current value Ic detected by the current detecting section 52 as the stored electricity quantity Q (integrated value). 此时,由于电流值Ic以正号表示对二次电池4充电的方向的电流,以负号表示从二次电池4放电的方向的电流,因此,电流累计部502加上充入二次电池4的蓄电电量,并减去从二次电池4放电的放电电量,由此计算充入二次电池4的蓄电电量Q。 At this time, since the current value Ic is the current direction of the secondary battery 4 is charged with a positive number to a negative number indicates a discharge current from the secondary battery 4 direction, and therefore, current accumulation unit 502 together with the secondary battery charged 4, the power storage amount, and subtracting the discharged electrical energy discharged from the secondary battery 4, thereby charging the secondary battery is calculated stored electricity quantity Q. 4 [0071] 控制部50计算蓄电电量Q相对于存储在容量存储部509中的满充电容量值FCC的比率(百分率)作为RS0C。 [0071] The control unit 50 calculates the power storage amount Q with respect to the full charge capacity stored in the storage capacity of the FCC unit 509 in a ratio value (percentage) as RS0C.

[0072] RSOC由下述式⑷求出。 [0072] RSOC determined by the following formula ⑷.

[0073] RSOC = (Q/FCC) X100(% ) ......(A) [0073] RSOC = (Q / FCC) X100 (%) ...... (A)

[0074] 而且,从控制部50向控制部37发送如此得到的RSOC作为二次电池4的RS0C,从而向设备侧电路3通知二次电池4的RS0C。 [0074] Further, the control unit 50 sends to the control unit 37 thus obtained from RSOC RS0C as the secondary battery 4, thereby notifying RS0C secondary battery 4 to the device-side circuit 3.

[0075] 开路比率推定部503当由电流检测部52检测出的电流值Ic的绝对值小于预先设定的开路判定值Ith时,获取由电压检测部51检测出的端子电压值Vb和由温度检测部53检测出的温度t。 [0075] The open ratio estimation portion 503 when the absolute value of the current value Ic detected by the current detecting section 52 is smaller than a predetermined open determination value Ith, acquires the terminal voltage value Vb detected by the voltage detector 51 and the temperature the detection unit 53 detects the temperature t. 并且,开路比率推定部503当所获取的端子电压值Vb和温度t的组合与在查找表LT中作为电流值Ic为OA时的值而对应的端子电压值Vb和温度t的组合实质上一致时,推定与该一致的组合相对应的RSOC作为二次电池4的蓄电比率RSOCo。 Further, the open ratio estimation portion 503 when substantially coincides compositions terminal voltage value Vb and temperature t of the acquired terminal voltage value in combination with a current value in the lookup table LT, Ic is the value at OA and the corresponding Vb and temperature t , combining the putative coincides with a corresponding storage RSOC RSOCo ratio of secondary battery 4.

[0076] 开路比率推定部503使用电流值Ic的绝对值小于开路判定值Ith的条件作为开路电压条件。 [0076] The open ratio estimating unit 503 using the absolute value of the current value Ic is less than the open circuit value Ith determination condition as an open circuit voltage condition. 此时,由于基于二次电池4的开路电压获取蓄电比率RSOCo,且温度t的影响降低,因此RSOCo的检测精度提高。 At this time, since the ratio of the power storage RSOCo acquired based on the open circuit voltage of the secondary battery 4, and the influence of temperature t decreases, thus improving the detection accuracy RSOCo.

[0077] 在此,由于查找表LT中以端子电压值Vb越上升则二次电池4的SOC越增大的方式将端子电压值Vb与RSOC相对应,因此端子电压值Vb越上升,开路比率推定部503使蓄电比率RSOCo越增大。 [0077] Here, since the lookup table LT to the terminal voltage value Vb increase the SOC of the secondary battery 4 increases as a manner corresponding to the terminal voltage value Vb and the RSOC, so the more the terminal voltage value Vb rises, the ratio of open estimating the power storage portion 503 increases as the ratio RSOCo.

[0078] 此外,开路比率推定部503并不限于使用端子电压值Vb和温度t推定RSOCo的例子,也可以仅使用端子电压值Vb来推定。 [0078] In addition, the open ratio estimating portion 503 is not limited to the use of the terminal voltage value Vb and temperature t is estimated RSOCo example, may be used only to estimate the terminal voltage value Vb.

[0079] 开路判定值Ith是为了判定处于能够获取开路电压作为二次电池4的端子电压值Vb的状态、即为了判定实质上电流值Ic为OA而预先设定的阈值,例如可以使用对OA加上电流检测部52的检测误差的程度的值。 [0079] determination value Ith is open in order to determine the open circuit voltage can be acquired as the state of the terminal voltage value Vb of the secondary battery 4, i.e., substantially in order to determine the threshold current value Ic OA is set in advance, for example, may be used for OA plus the degree of error detection unit 52 detecting a current value. 或者也可以设定在用户未使用设备侧电路3时流过的泄漏电流或待机电流程度的微小的电流值、即不对端子电压值Vb造成实质性影响的程度的电流值作为开路判定值Ith。 Or may be set in a small leakage current and the current value of the standby current level 3 workflow user side circuit has not been used before, i.e., the terminal voltage value Vb does not cause a substantial degree of influence of the current value as an open determination value Ith.

[0080] 开路比率推定部503当被修正控制部507设定为第I推定部时,将蓄电比率RSOCo设定为第I蓄电比率RSOCa而通知于开路比率推定部503。 [0080] When the open ratio estimating unit 503 correction control unit 507 is set to the first estimating portion I, the ratio of the power storage RSOCo ratio set to the first power storage RSOCa I notified ratio estimation portion 503 to open. 另外,开路比率推定部503当被修正控制部507设定为第2推定部时,将蓄电比率RSOCo设定为第2蓄电比率RSOCb而通知于开路比率推定部503。 Further, when the open ratio estimating unit 503 correction control unit 507 is set to the second estimation section, the ratio of the power storage RSOCo ratio set to the second power storage notified RSOCb ratio estimation portion 503 to open.

[0081] 开路比率推定部503基于二次电池4的开路电压推定蓄电比率RSOCo,因此,与根据电流流经二次电池4的状态的端子电压值Vb推定蓄电比率RSOCr的基准比率推定部506相比,第I蓄电比率RSOCa和第2蓄电比率RSOCb的推定精度提高。 [0081] ratio estimating unit 503 based on the open circuit voltage of the secondary storage battery 4 ratio estimation RSOCo, therefore, the terminal voltage value Vb according to the state of the current flowing through the secondary battery 4 power storage ratio estimation reference ratio estimation portion RSOCr 506 as compared to the accuracy of estimation of power storage I ratio and the second power storage RSOCa RSOCb ratio increases.

[0082] 满充电比率推定部504当从充电控制部501发送已达到满充电的通知时,认为满足满充电条件,推定为二次电池4的蓄电比率RSOCf为100% (比率:1)。 [0082] The full-charge ratio estimation portion 504 when viewed from the charging control unit 501 transmits a notification of full charge has been reached, that the full charge condition is satisfied, a ratio of the estimated power storage RSOCf secondary battery 4 is 100% (ratio: 1).

[0083] 满充电比率推定部504当被修正控制部507设定为第I推定部时,将蓄电比率RSOCf设定为第I蓄电比率RSOCa而通知于开路比率推定部503。 [0083] The full-charge ratio estimation portion 504 when the correction control section 507 is set to the first estimating portion I, the ratio of the power storage RSOCf ratio set to the first power storage RSOCa I notified ratio estimation portion 503 to open. 另外,满充电比率推定部504当被修正控制部507设定为第2推定部时,向开路比率推定部503通知将蓄电比率RSOCf设定为第2蓄电比率RSOCb而通知于开路比率推定部503。 Further, when the full charge rate estimating section 504 when the correction control section 507 is set to the second estimating portion estimating unit 503 notifies the storage ratio is set to the second power storage RSOCf ratio RSOCb notified estimated open circuit to open ratio Ratio 503.

[0084] 电压换算比率获取部505使用由电压检测部51检测出的端子电压值Vb、由电流检测部52检测出的电流值Ic、以及由温度检测部53检测出的温度t,推定二次电池4的蓄电比率RSOCv。 [0084] The voltage conversion unit 505 acquires the use ratio of the terminal voltage value Vb detected by the voltage detector 51, a current value Ic detected by the current detecting section 52, and the temperature detected by the temperature detecting section 53 t, estimating the secondary the ratio of the storage battery 4 RSOCv.

[0085] 具体而言,电压换算比率获取部505当端子电压值Vb、电流值Ic及温度t的组合与在查找表LT中相对应的端子电压值Vb、电流值Ic及度t的组合实质上一致时,推定与该一致的组合相对应的RSOC作为蓄电比率RSOCv。 [0085] Specifically, the voltage conversion ratio acquisition unit 505 when the terminal voltage value Vb, the combined current value Ic and the temperature t in the lookup table LT corresponding to the terminal voltage value Vb, the current value Ic and the combination of substantive t when the same, the composition is consistent with the estimated corresponding power storage RSOC ratio RSOCv.

[0086] 在此,由于查找表LT中以端子电压值Vb越上升则二次电池4的SOC越增大的方式将端子电压值Vb与SOC相对应,因此,端子电压值Vb越上升,电压换算比率获取部505使蓄电比率RSOCv越增大。 [0086] Here, since the lookup table LT in the manner that the value of the terminal voltage Vb of the secondary battery rises. 4 of the SOC increases as the terminal voltage value Vb corresponding to the SOC, and therefore, the increase in the terminal voltage value Vb, the voltage obtaining the conversion rate of the power storage unit 505 increases as the ratio RSOCv.

[0087] 另外,在查找表LT中,以相对于同一RSOC电流值Ic越大、即在充电方向上电流值Ic越增大且在放电方向上电流值Ic的绝对值越小,则端子电压值Vb越上升的方式,使电流值Ic与端子电压值Vb相对应。 [0087] Further, in a lookup table LT, with respect to the same current value Ic RSOC larger, i.e., the increases in the direction of the charging current value Ic and the smaller the absolute value of the current value Ic in the discharge direction, the terminal voltage increase the value Vb manner, the current value Ic and the voltage value Vb corresponding to the terminal. 因此,电压换算比率获取部505当将电流检测部52检测出的电流值Ic以及电压检测部51检测出的端子电压值Vb与查找表LT对照时,以电流值Ic越大则使蓄电比率SROCv越减少的方式,推定蓄电比率RSOCv。 Thus, the voltage conversion ratio of the acquired current value Ic and the voltage detection unit 505 when the unit 51 the current detecting unit 52 detects the terminal voltage value Vb detected by the lookup table LT and a control, the greater the current value Ic of the power storage ratio SROCv more reduced way, the ratio of the estimated power storage RSOCv.

[0088] 另外,在查找表LT中,以相对于同一SOC温度t越高则端子电压值Vb越下降的方式,使温度t与端子电压值Vb相对应。 [0088] Further, in a lookup table LT in the same with respect to temperature t higher the SOC value of the terminal voltage Vb of the drop mode, the temperature t and the voltage value Vb corresponding to the terminal. 因此,电压换算比率获取部505通过将温度检测部53检测出的温度t以及电压检测部51检测出的端子电压值Vb与查找表LT进行对照,以温度t越高则使蓄电比率SROCv越增大的方式,推定蓄电比率RSOCv。 Therefore, the terminal voltage value Vb voltage conversion rate acquisition unit 505 detected by the temperature t and the voltage detecting unit 51 detects the temperature detecting section 53 is compared with the lookup table LT, the higher the temperature of the power storage ratio t SROCv more increasing manner, the ratio of the estimated power storage RSOCv.

[0089] 如此,在查找表LT中,使与二次电池4的RSOC具有相关关系的多个参数、即端子电压值Vb、电流值Ic以及温度t与二次电池4的RSOC相对应,因此,电流值Ic及温度t对蓄电比率RSOCv的影响降低,其结果,电压换算比率获取部505能够高精度地推定蓄电比率RSOCv。 [0089] Thus, in a lookup table LT, a plurality of parameters having a correlation with RSOC secondary battery 4, i.e., the terminal voltage value Vb, the current value Ic and the temperature t and the RSOC secondary battery 4 corresponds therefore Effect current value Ic and the temperature t of the power storage RSOCv ratio decreases, as a result, the voltage conversion ratio acquisition unit 505 can be accurately estimated power storage ratio RSOCv.

[0090] 在查找表LT中设定的值为离散值,相对于此,由电压检测部51检测出的端子电压值Vb、由电流检测部52检测出的电流值Ic、以及由温度检测部53检测出的温度t连续变化。 [0090] LT is set in a lookup table of discrete values ​​of values, whereas the terminal voltage value Vb detected by the voltage detector 51, a current value Ic detected by the current detecting section 52, and by the temperature detecting unit 53 the detected temperature t is continuously changed. 因此,开路比率推定部503和电压换算比率获取部505对端子电压值Vb、电流值Ic以及温度t实施例如四舍五入或去尾的近似处理的基础上,与查找表LT对照。 Thus, the ratio of the open circuit voltage estimation unit 503 and the conversion rate acquisition section 505 terminal voltage value Vb, the current value Ic and the temperature t based embodiment, for example, rounded or approximate to the end of the processing on the lookup table LT controls. 所谓的“实质上一致”,意思是指包括如上所述地对端子电压值Vb、电流值Ic以及温度t实施例如四舍五入或去尾等近似处理的结果是一致的情况。 So-called "substantially identical" is meant as described above, comprising a terminal voltage value Vb, the results of the temperature t and the current value Ic embodiment rounding or tail-like e.g. approximation process is the same situation.

[0091] 此外,电压换算比率获取部505并不限于使用端子电压值Vb、电流值Ic以及温度t推定蓄电比率RSOCv的例子,也可以仅使用端子电压值Vb来推定,还可以使用端子电压值Vb和电流值Ic来推定,或者也还可以使用端子电压值Vb和温度t来推定蓄电比率RSOCv。 [0091] Further, the voltage conversion ratio obtaining portion 505 is not limited to the use of the terminal voltage value Vb, the current value Ic and the estimated power storage temperature t ratio RSOCv example, may be used only to estimate the terminal voltage value Vb, the terminal voltage may also be used value Vb and the estimated current value Ic, may also be used or the terminal voltage value Vb and the estimated power storage temperature t ratio RSOCv.

[0092] 基准比率推定部506将由电压换算比率获取部505推定出的蓄电比率RSOCv达到预先设定的基准值Ref作为基准条件。 [0092] reference ratio estimation portion 506 by the voltage conversion unit 505 acquires the ratio of the estimated power storage RSOCv ratio reaches a preset reference value Ref as a reference condition. 而且,基准比率推定部506当蓄电比率RSOCv与基准值Ref相等时,将二次电池4的蓄电比率RSOCr推定为与蓄电比率RSOCv、即基准值Ref相等。 Moreover, the reference ratio estimation portion 506 when the power storage RSOCv ratio equal to the reference value Ref, the ratio of the secondary storage battery 4 to the estimated power storage RSOCr RSOCv ratio, i.e., the reference value Ref equal.

[0093] 在此,二次电池存在相对于蓄电比率RSOC的变化,端子电压值Vb的变化量大的区域即第I范围和小的区域即第2范围。 [0093] Here, the presence of the secondary battery with respect to a change of the power storage RSOC ratio, the amount of change of the terminal voltage value Vb i.e. region I and a small range i.e., the range of the second region. 由此,在第2范围由电压换算比率获取部505基于端子电压值Vb而推定出的蓄电比率RSOCv与在第I范围由电压换算比率获取部505基于端子电压值Vb而推定出的蓄电比率RSOCv相比精度下降。 Accordingly, the terminal voltage acquisition unit 505 based on the estimated value Vb of power storage ratio in the range of I RSOCv converted by the voltage acquiring section 505 based on the ratio of the terminal voltage value Vb and the estimated power storage voltage conversion ratio in the range 2 ratio compared RSOCv accuracy.

[0094] 因此,如果将在属于第I范围的蓄电比率之中选择的值设定为基准值Ref,则电压换算比率获取部505的蓄电比率RSOCv的推定精度提高,因此较为理想。 [0094] Thus, if the storage ratio among the values ​​that belong to a range I of reference of the selected set value Ref, the voltage conversion ratio estimation accuracy acquiring unit 505 of the power storage RSOCv ratio is increased, and therefore it is preferable. [0095] 例如,在采用锂离子二次电池的情况下,RSOC为10%以下的区域成为端子电压值Vb相对于蓄电比率RSOC的变化的变化量大的区域、即第I范围。 [0095] For example, in the case of a lithium ion secondary battery, RSOC 10% or less of the area of ​​the terminal voltage value Vb becomes large with respect to changes in the ratio of change in the RSOC storage area, i.e., the first range I. 因此,较为理想的是,作为基准值Ref,使用第I范围的值例如5. 5%。 Accordingly, it is preferable that, as the reference value Ref, using the value of the I range, such as 5.5%.

[0096] 基准比率推定部506当被修正控制部507设定为第I推定部时,将蓄电比率RSOCr设定为第I蓄电比率RSOCa而通知于开路比率推定部503。 [0096] When the reference ratio estimating unit 506 correction control unit 507 is set to the first estimating portion I, the ratio of the power storage RSOCr ratio set to the first power storage RSOCa I notified to the ratio estimation portion 503 is open. 另外,基准比率推定部506当被修正控制部507设定为第2推定部时,将蓄电比率RSOCr设定为第2蓄电比率RSOCb而通知于开路比率推定部503。 Further, the reference ratio estimation portion 506 when the correction control section 507 is set to the second estimation section, the ratio of the power storage RSOCr ratio set to the second power storage notified RSOCb ratio estimation portion 503 to open.

[0097] 修正控制部507当满足开路比率推定部503的开路电压条件、满充电比率推定部504的满充电条件、基准比率推定部506的基准条件之中的任一个时,将使用该满足的条件的推定部设定为第I推定部。 [0097] When the correction control unit 507 to satisfy the ratio of the open circuit voltage estimating portion 503 of the conditions, the fully charged condition of the full charge rate estimating section 504, any one among the reference ratio estimation portion 506 of a reference condition, it will use that satisfy estimating conditions is set as a first portion I estimating portion. 而且,修正控制部507在将开路比率推定部503设定为第I推定部时,将满充电比率推定部504和基准比率推定部506之中的任一个设定为第2推定部,并且在将满充电比率推定部504和基准比率推定部506之中的任一个设定为第I推定部时,将开路比率推定部503设定为第2推定部。 Further, the correction control section 507 in the open ratio estimation portion 503 is set to the first section I estimation, the estimated full-charge ratio estimation portion 504 and the ratio of any reference in section 506 is set to a second estimation section, and when any among the full charge rate estimating section 504 and the reference ratio estimating unit 506 estimating a set of I section, the open ratio estimation portion 503 is set to the second estimating portion.

[0098] 另外,修正控制部507当第2推定部推定出第2蓄电比率RSOCb且满充电容量修正部508在容量存储部509中存储了新的满充电容量值FCC时,将用作该第2推定部的推定部设定为第I推定部,并将该推定出的第2蓄电比率RSOCb设定为第I蓄电比率RSOCa,从而推定出新的第I蓄电比率RSOCa,再次开始新的满充电容量值FCC的推定。 When [0098] Further, the correction control section 507 when the second estimating portion estimates the ratio of the second power storage RSOCb and full charge capacity correction unit 508 stores the new value of the full charge capacity FCC in the mass storage unit 509, serving as the the second estimating portion estimating portion estimating section I for the first set, and the estimated power storage ratio of the second set to the first I RSOCb storage ratio RSOCa, so that a new estimated storage ratio of I RSOCa, again start a new full charge capacity value FCC presumption. 据此,修正控制部507连续重复执行满充电容量值FCC的修正。 Accordingly, the correction control section 507 continuously repeatedly performs the correction of the full charge capacity value FCC.

[0099] 满充电容量修正部508获取在第I推定部推定出第I蓄电比率RSOCa起至第2推定部推定出第2蓄电比率RSOCb为止的期间由电流累计部502累计的累计值作为差值累计值Qd。 [0099] full charge capacity correction section 508 acquires the estimation section estimates the first I I of the power storage RSOCa ratio estimating unit until the second period until the ratio of the second power storage RSOCb 502 as the integrated value of the accumulated current accumulation unit the difference between the integrated value Qd. 满充电容量修正部508例如从第2推定部推定出第2蓄电比率RSOCb时由电流累计部502累计的累计值减去第I推定部推定出第I蓄电比率RSOCa时的累计值,由此计算差值累计值Qd。 When the full charge capacity estimated by the correction section 508, for example, the ratio of the second power storage unit RSOCb estimated by subtracting from the second integrated portion 502 by the current integrated value I of the accumulated estimation section estimates an accumulated value of the ratio of power storage I RSOCa, the this calculating the difference integrated value Qd.

[0100] 此外,只要在第I推定部推定出第I蓄电比率RSOCa起至第2推定部推定出第2蓄电比率RSOCb为止的期间将由电流累计部502累计的累计值作为差值累计值Qd而累计即可。 [0100] In addition, as long as the estimating portion estimates the ratio of the first power storage RSOCa I until the second estimating portion 502 estimated by the current integrated value integrated accumulation unit during a period ratio of the second power storage RSOCb as a difference in the integrated value of I Qd and can be cumulative. 因此,在此期间,可以充电或放电,并不需要连续放电或连续充电。 Thus, during this period, you can be charged or discharged, does not require continuous charge or continuous discharge.

[0101] 另外,也可以在用于检测二次电池4的RSOC的电流累计部502之外还具备满充电容量修正用的另一电流累计部,使用该电流累计部进行在第I推定部推定出第I蓄电比率RSOCa起至第2推定部推定出第2蓄电比率RSOCb为止的期间的电流值Ic的累计,从而获取差值累计值Qd。 [0101] Further, the other may further include a current integration unit full charge capacity is outside the correction current summation unit 502 RSOC 4 for detecting a secondary battery using the current integrated unit in the first estimation part I the ratio of I RSOCa storage until the second estimation section estimates the current value during the second storage until the cumulative ratio RSOCb Ic, so as to obtain the integrated value of the difference Qd.

[0102] 满充电容量修正部508将由第I推定部获得的第I蓄电比率RSOCa表示的比率作为第I蓄电比率Ra,将由第2推定部获得的第2蓄电比率RSOCb表示的比率作为第2蓄电比率Rb,并基于下述式(I),计算新的满充电容量值FCCN。 Ratio of the second power storage ratio ratio ratio of the first power storage I [0102] full charge capacity correction section 508 by the first estimating portion I obtained RSOCa represented as the ratio of power storage I Ra, obtained by the second estimation section as represented by the RSOCb the ratio of the second power storage Rb, and based on the following formula (I), calculating a new full charge capacity value FCCN.

[0103]满充电容量值 FCCN = QdX I/(Rb-Ra) ......(I) [0103] full charge capacity value FCCN = QdX I / (Rb-Ra) ...... (I)

[0104] 而且,满充电容量修正部508将如此得到的满充电容量值FCCN作为新的满充电容量值FCC存储在容量存储部509中,从而修正满充电容量值FCC。 [0104] Moreover, the full charge capacity correction unit 508 thus obtained FCCN full charge capacity value as the new value of the full charge capacity FCC stored in the mass storage section 509, thereby correcting the full charge capacity value FCC.

[0105] 此外,满充电容量修正部508也可以通过下述的差值修正方式来修正满充电容量值FCC,以代替基于上述式(I)修正满充电容量值FCC的方式。 [0105] In addition, the full charge capacity correction section 508 may be corrected value of the full charge capacity FCC, instead of the correction by value FCC full charge capacity based on the above formula (I) by the following difference correction mode.

[0106] S卩,作为差值修正方式,满充电容量修正部508使用下述式(2)计算第I电量QF,该第I电量QF是将存储在容量存储部509中的修正前的满充电容量值FCCO和第I蓄电比率Ra相乘而得到的乘积与差值累计值Qd的合计值。 [0106] S Jie, as a difference correction mode, the full charge capacity using the correction section 508 (2) Calculation of amount QF by the following formula I, I, the full charge QF before correction is stored in the mass storage unit 509 FCCO charge capacity value and the second power storage ratio Ra I product obtained by multiplying the integrated value of the difference of the total value Qd.

[0107] QF = FCCOXRa+Qd ......(2) [0107] QF = FCCOXRa + Qd ...... (2)

[0108] 另外,满充电容量修正部508使用下述式(3)计算作为满充电容量值FCCO与第2蓄电比率的乘积的第2电量QS。 [0108] Further, the full charge capacity using the correction section 508 (3) charge QS is calculated by the following formula 2 as a product and the full charge capacity value of the second power storage FCCO Ratio.

[0109] QS = FCCOXRb ......(3) [0109] QS = FCCOXRb ...... (3)

[0110] 而且,满充电容量修正部508当Ra < Rb且QF < QS时,基于下述式⑷计算所述新的满充电容量值FCCN,当Ra < Rb且QF > QS时,基于下述式(5)计算所述新的满充电容量值FCCN,当Ra > Rb且QF < QS时,基于下述式(5)计算所述新的满充电容量值FCCN,当Ra > Rb且QF > QS时,基于下述式⑷计算所述新的满充电容量值FCCN。 [0110] Moreover, the full charge capacity correction section 508 when Ra <Rb and QF <when ​​QS, the calculated new full charge capacity value based on the following formula FCCN ⑷, when Ra <Rb and QF> QS, based on the following formula (5) calculating the full charge capacity value of the new FCCN, when Ra> Rb and QF <QS, based on the following formula (5) calculating the full charge capacity value of the new FCCN, when Ra> Rb and QF> when QS, based on the following formula ⑷ calculated full charge capacity of the new value FCCN.

[0111]满充电容量值 FCCN = FCCO-{I QS-QF IX (I/I Rb-Ra|)} ......(4) [0111] full charge capacity value FCCN = FCCO- {I QS-QF IX (I / I Rb-Ra |)} ...... (4)

[0112]满充电容量值 FCCN = FCCO+{I QS-QF IX (I/I Rb-Ra|)} ......(5) [0112] full charge capacity value FCCN = FCCO + {I QS-QF IX (I / I Rb-Ra |)} ...... (5)

[0113] 在此,当第I推定部推定出第I蓄电比率Ra时,满充电容量修正部508将FCCOXRa设定为电流累计部502的蓄电电量Q,电流累计部502继续进行相对于该蓄电电量Q的电流值Ic的累计,则能够直接使用第2推定部推定出第2蓄电比率Rb时的蓄电电量Q作为第I电量QF,因此能够简化处理。 [0113] Here, when the first I estimating section estimates the first power storage I ratio Ra, the full charge capacity correction section 508 is set to the current integration FCCOXRa portion 502 of the stored electricity quantity Q, the current accumulation unit 502 continues with respect to the stored electricity quantity Q is the cumulative current value Ic, it is possible to directly use the second estimated power storage amount estimating unit when the second storage as the ratio Q I Rb amount QF, the processing can be simplified.

[0114] 另外,蓄电电量Q的值被用作二次电池4的蓄电电量的推定值(检测值),因此当第I推定部推定出第I蓄电比率Ra时,将FCCOXRa设定为蓄电电量Q,从而能够提高二次电池4的蓄电电量的推定精度。 [0114] Further, the value of the power storage amount Q estimated value is used as the power storage quantity of the secondary battery 4 (the detected value), and therefore when the first I estimating section estimates the first power storage I ratio Ra, the setting FCCOXRa is stored electricity quantity Q, thereby improving the estimation accuracy of the power storage quantity of the secondary battery 4.

[0115] 此外,第I蓄电比率Ra与第I蓄电比率RSOCa、第2蓄电比率Rb与第2蓄电比率RSOCb只是比率的表现方法彼此不同而已,其表示相同的比率,因此,第I蓄电比率之间、第2蓄电比率之间彼此等价。 [0115] In addition, the ratio Ra of the first power storage I I ratio storage RSOCa, the ratio of the second power storage and the second storage ratio Rb RSOCb but the performance ratios different from each other only method, which represents the same rate, and therefore, the I ratio between the power storage, the equivalent ratio between the second power storage each other. 因此,也可以代替式(I)中的“l/(Rb-Ra)”而采用100/ (RSOCb-RSOCa),当然也可以代替式(4)、式(5)中的“ I/ | Rb-Ra ) ”而采用100/I RSOCb-RSOCa I) o 此时,式(I)中的“ I/(Rb-Ra) ”、“ 100/(RSOCb-RSOCa) ”、式(4)、式 Thus, it is possible in place of the formula (I) "l / (Rb-Ra)" employed 100 / (RSOCb-RSOCa), of course, may be used instead of formula (4), of formula "I (5) is / | Rb -Ra) "employed 100 / I RSOCb-RSOCa I) o in this case, in formula (I)" I / (Rb-Ra) "," 100 / (RSOCb-RSOCa) ", the formula (4), of formula

(5)中的“l/|Rb-Ra|)”、“100/|RS0Cb-RS0Ca|)”相当于“差值累计值、第I蓄电比率和第2蓄电比率之差与I的比率”的一例。 (5) "l / | Rb-Ra |)", "100 / | RS0Cb-RS0Ca |)" corresponds to the "cumulative value difference the difference between the first ratio and the second power storage I 2 and I is the ratio of power storage one case the ratio of "the.

[0116] 下面对图I所示的满充电容量修正电路5的动作进行说明。 [0116] Next, the operation of FIG. I full charge capacity of the correction circuit 5 will be described in FIG. 图4至图8是表示图I所示的满充电容量修正电路5的动作的一例的流程图。 4 to FIG. 8 is a flowchart showing the operation shown in FIG. I full charge capacity correction circuit 5.

[0117] 首先,由电流检测部52检测流经二次电池4的电流值Ic,由电压检测部51检测端子电压值Vb,由温度检测部53检测温度t (步骤SI)。 [0117] First, a current detection value Ic 52 flowing in the secondary battery current detecting unit 4, the terminal 51 detects a voltage value Vb voltage detecting unit, by the temperature detecting unit 53 detects the temperature T (step SI). 接着,由电流累计部502按每单位时间累计电流值Ic,计算充入二次电池4的蓄电电量Q(步骤S2)。 Next, the current integration unit 502 per unit time integrated current value Ic, calculation of the stored electricity quantity charged into the secondary battery 4, Q (step S2). 然后,由电压换算比率获取部505根据电流值Ic、端子电压值Vb以及温度t,推定并获取蓄电比率RSOCv (步骤S3)。 Then, the voltage obtained by the conversion rate based on the current value Ic unit 505, the terminal voltage value Vb and the temperature t, and obtain estimated power storage ratio RSOCv (step S3).

[0118] 步骤SI至S3与以下的处理并行而始终执行,电流值Ic、端子电压值Vb、温度t、蓄电电量Q以及蓄电比率RSOCv始终更新为最新的值。 [0118] Step SI to S3 and the following parallel processing is always performed, the current value Ic, the terminal voltage value Vb, temperature t, the stored electricity quantity Q and a storage ratio RSOCv always updated to the latest value.

[0119] 接下来,由修正控制部507比较电流值Ic的绝对值和开路判定值Ith (步骤S4),确认开路电压条件。 [0119] Subsequently, the absolute value of the current comparator 507 Ic value correction control unit and a value determined by open Ith (step S4), confirmed that the open circuit voltage conditions. 而且,当电流值Ic的绝对值为开路判定值Ith以上而不满足开路电压条件时(在步骤S4为“否”),修正控制部507确认有无来自充电控制部501的满充电的通知,确认满充电条件(步骤S5)。 Further, when the absolute value of the current value Ic is open determination value Ith above the open circuit voltage does not satisfy the condition (in step S4 is "NO"), correction control unit 507 to confirm whether the full-charge notification from the charging control unit 501, confirmed that the full-charge condition (step S5).

[0120] 并且,当没有来自充电控制部501的满充电的通知而不满足满充电条件时(在步骤S5为“否”),修正控制部507比较蓄电比率RSOCv与基准值Ref,确认基准条件(步骤S6)。 [0120] Further, when the full charge condition is not the full-charge notification from the charging control unit 501 is not satisfied (at step S5 is "NO"), correction control unit 507 and the comparison reference value storage RSOCv Ref ratio, confirm the reference condition (step S6). 并且,当蓄电比率RSOCv与基准值Ref不一致而不满足基准条件时,转移至步骤S4。 And, when the ratio of the power storage RSOCv inconsistent with the reference value Ref does not satisfy the reference condition, proceeds to step S4.

[0121] 以上,重复执行步骤S4至S6,直到开路电压条件、满充电条件以及基准条件的任一个得到满足为止。 [0121] or more, steps S4 to S6 are repeatedly performed, until any of the open-circuit voltage, the full-charge condition, and a reference condition, is satisfied. 而且,当电流值Ic的绝对值小于开路判定值Ith而满足开路电压条件时(在步骤S4为“是”),修正控制部507设定开路比率推定部503为第I推定部,并转移至步骤S7。 Further, when the absolute value of the current Ic is less than the determination value Ith open circuit voltage satisfies the condition (in step S4 is "Yes"), correction control unit 507 is set to open the first ratio estimating unit 503 estimating section I, and transferred to step S7.

[0122] 接着,由修正控制部507将满足开路电压条件时的蓄电电量Q作为累计值Q(I)而存储在例如RAM中(步骤S7)。 [0122] Next, the correction control section 507 satisfies the stored electricity quantity Q at the open-circuit voltage condition as a cumulative value Q (the I), for example, stored in the RAM (step S7).

[0123] 然后,由开路比率推定部503根据二次电池4的开路电压(0CV : (Open circuitvoltage))即端子电压值Vb、以及温度t,推定蓄电比率RSOCo (步骤S8)。 [0123] Then, the estimating unit 503 according to the ratio of the open circuit voltage (0CV: (Open circuitvoltage)) of the secondary battery 4, i.e., the terminal voltage value Vb, and the temperature t, the ratio of the estimated power storage RSOCo (step S8). 进一步,由开路比率推定部503将蓄电比率RSOCo设为第I蓄电比率RSOCa。 Further, from the open ratio estimation portion 503 is set to the first power storage ratio RSOCo I ratio storage RSOCa. 由于蓄电比率RSOCo以百分率表示比率,因此将其改写为比率并设定为第I蓄电比率Ra(步骤S9)。 Since the power storage RSOCo ratio represents the ratio in percentage, so it is rewritten as a ratio and the ratio set to the first power storage I Ra (Step S9).

[0124] 此时,由开路比率推定部503基于二次电池4的开路电压推定满足开路电压条件时的二次电池4的第I蓄电比率Ra,因此,第I蓄电比率Ra为精度高的蓄电比率的推定值。 [0124] In this case, the first power storage ratio Ra I 4 when the secondary battery based on the open circuit voltage of the secondary battery 4 is estimated by the ratio of the open circuit voltage estimating unit 503 satisfies the condition, therefore, the ratio Ra of the first power storage I high precision the estimated value of the power storage ratio.

[0125] 接着,由修正控制部507在步骤S21至S23执行与步骤S4至S6同样的处理,且重复执行步骤S21至S23,直到开路电压条件、满充电条件以及基准条件的任一个再次得到满足为止。 [0125] Next, the S4 to the same processing S6 correction control section 507 in step S21 to S23 as in steps, and repeat steps S21 to S23, until either the open-circuit voltage, the full-charge condition and the reference condition a is satisfied again until.

[0126] 并且,当电流值Ic的绝对值小于开路判定值Ith而满足开路电压条件时(在步骤S21为“是”),修正控制部507设定开路比率推定部503为第2推定部,并转移至步骤S24。 [0126] Then, when the absolute value of the current Ic is less than the determination value Ith open circuit voltage satisfies the condition (in step S21 is "Yes"), correction control unit 507 is set to an open ratio estimating unit 503 estimating a second portion, and proceeds to step S24.

[0127] 接着,修正控制部507将在步骤S21满足开路电压条件时的蓄电电量Q作为累计值Q (2)而存储在例如RAM中(步骤S24)。 [0127] Next, the correction control section 507 when the stored electricity quantity S21 satisfy the conditions of the open circuit voltage as a cumulative value in step Q Q (2), for example, stored in the RAM (step S24).

[0128] 并且,由开路比率推定部503根据二次电池4的开路电压即端子电压值Vb和温度t,推定蓄电比率RSOCo (步骤S25)。 [0128] Further, the ratio of the open circuit voltage estimating unit 503 according to the secondary battery 4, i.e., the terminal voltage value Vb and temperature t, the ratio of the estimated power storage RSOCo (step S25). 进一步,开路比率推定部503将蓄电比率RSOCo设为第2蓄电比率RSOCb。 Further, the ratio of open storage ratio estimating unit 503 as a second storage RSOCo ratio RSOCb. 由于蓄电比率RSOCo以百分率表示比率,因此将其改写为比率并设定为第2蓄电比率Rb (步骤S26)。 Since the power storage RSOCo ratio represents the ratio in percentage, so it is rewritten to the set ratio and the second power storage ratio Rb (step S26).

[0129] 此时,由于开路比率推定部503基于二次电池4的开路电压推定满足开路电压条件时的二次电池4的第2蓄电比率Rb,因此,第2蓄电比率Rb为精度高的蓄电比率的推定值。 [0129] At this time, since the estimating unit 503 based on the ratio of the open circuit voltage of the secondary battery of the secondary battery 4 satisfies estimating the second storage 4 ratio Rb when the open-circuit voltage conditions, and therefore, a ratio Rb of the second power storage with high precision the estimated value of the power storage ratio.

[0130] 接下来,为在后述的满充电容量值FCC的修正后接着反复进行满充电容量值FCC的修正,修正控制部507将用作第2推定部的开路比率推定部503设定为新的第I推定部(步骤S27),并转移至步骤S41。 [0130] Next, as followed by repeating the correction value of the full charge capacity FCC of the corrected value of the full charge capacity FCC described later, the correction control unit 507 as an open ratio of the second estimating portion estimating portion 503 is set to I of new estimating section (step S27), and proceeds to step S41.

[0131] 此外,所谓的“设定为新的第I推定部”并不伴随具体的处理,而是将已经推定出的第2蓄电比率Rb用作下次修正处理的第I蓄电比率Ra,从而概念性地示出已经用作第2推定部的推定部相当于下次修正处理的第I推定部。 [0131] In addition, so-called "set as a new first estimating portion I" is not accompanied by specific processing, but that has been estimated as the second power storage ratio Rb correction processing of the next storage ratio I Ra, and thus has been used as conceptually showing the second estimating portion estimating portion corresponds to the next correction process I of estimating portion.

[0132] 在步骤S41,修正控制部507从累计值Q (2)减去累计值Q(I)来计算差值累计值Qd (步骤S41)。 [0132] In step S41, the integrated value of the correction control section 507 Q (2) subtracting the integrated value Q (I) calculating the difference integrated value Qd (step S41). 由此,差值累计值Qd为在步骤S4 二次电池4满足开路电压条件之后,经过充放电再次在步骤S21满足开路电压条件为止的期间内的、二次电池4的蓄电电量Q的变 Accordingly, the integrated value of the difference Qd of the secondary battery 4 after the open-circuit voltage condition satisfies step S4, after the charge-discharge satisfied again in step S21, the stored electricity quantity Q of the secondary battery 4 is increased in a period until the open-circuit voltage condition

化量。 Of the amount.

[0133] 接着,满充电容量修正部508基于如上获得的第I蓄电比率Ra、第2蓄电比率Rb以及差值累计值Qd,使用式(I)计算满充电容量值FCCN (步骤S42)。 [0133] Next, the correction full charge capacity of power storage unit 508 based on the ratio Ra I obtained as described above, the ratio of the second power storage Rb integrated value and a difference Qd, formula (I) calculating the full charge capacity value FCCN (step S42) . 然后,满充电容量修正部508通过将满充电容量值FCCN作为新的满充电容量值FCC而存储在容量存储部509中,从而修正满充电容量值FCC (步骤S43)。 Then, the full charge capacity by the correction section 508 FCCN full charge capacity value as the new value of the full charge capacity FCC stored in the mass storage section 509, thereby correcting the full charge capacity value FCC (step S43).

[0134] 在此,由于专利文献I所记载的方法需要基于修正前的满充电容量计算充电开始时的蓄电电量,因此存在如果基于该充电开始时的蓄电电量进行满充电容量的修正,则修正前的满充电容量所包含的误差的一部分还会残留在修正后的满充电容量中的问题。 [0134] Here, since the method described in Patent Document I needs to be calculated at the start of charging of power storage quantity based on the full charge capacity before correction, the correction if there is a full charge capacity of the power storage quantity based on the charging start time, a portion of the full charge capacity before the correction contains an error will residues in full charge capacity is revised.

[0135] 但是,由于式(I)能够基于与修正前的满充电容量无关地获得的差值累计值Qd、第I蓄电比率Ra以及第2蓄电比率Rb计算新的满充电容量值FCCN,因此新的修正值中不会包含修正前的满充电容量的误差。 [0135] However, since the formula (I) can be integrated value based on the difference Qd of full charge capacity before correction obtained regardless of the ratio Ra I, and the second power storage power storage ratio Rb calculated new full charge capacity value FCCN , the new correction values ​​will not contain the full charge capacity of the error before correction. 其结果,与专利文献I所记载的方法相比,满充电容量修正部508能够提高满充电容量值FCC的修正精度。 As a result, compared with the method described in Patent Document I, the full charge capacity correction section 508 can be improved accuracy of the full charge capacity FCC of the correction value.

[0136] 另外,如上所述,与基准比率推定部506相比,开路比率推定部503的蓄电比率的推定精度高,因此,当如上所述地使用开路比率推定部503作为第I推定部和第2推定部时,与第I蓄电比率Ra和第2蓄电比率Rb之中的任一个通过基准比率推定部506推定的情况相比,满充电容量值FCC的修正精度提高。 [0136] Further, as described above, as compared with the reference ratio estimation portion 506, a high open ratio estimation ratio estimation accuracy storage section 503, and therefore, when the open ratio described above estimation unit estimating portion 503 as the I and when the second estimation section, the case section 506 along with any estimated power storage section I and second power storage ratio Ra Rb ratio estimation by a reference ratio compared to the value of the full charge capacity FCC of the correction accuracy.

[0137] 然后,为了继续反复执行满充电容量值FCC的修正,修正控制部507将第2蓄电比率Rb设为第I蓄电比率Ra,将累计值Q(I)设为累计值Q (2)(步骤S44),再次转移至步骤S21。 [0137] Then, in order to continue to repeatedly perform the full charge capacity FCC of the correction value, the correction control section 507 of the second power storage ratio I of the power storage ratio Rb is Ra, the integrated value Q (I) is set to the integrated value Q ( 2) (step S44), transferred again to step S21.

[0138] 接着,修正控制部507重复执行步骤S21至S23,直到开路电压条件、满充电条件以及基准条件的任一个再次得到满足为止。 [0138] Next, the correction control unit 507 performs steps S21 to S23 is repeated, until either the open-circuit voltage, the full-charge condition, and a reference condition, is satisfied again.

[0139] 并且,当有来自充电控制部501的满充电的通知而满足满充电条件时(在步骤S22为“是”),修正控制部507将满充电比率推定部504设为第2推定部,获取满足满充电条件时的蓄电电量Q作为累计值Q (2)(步骤S28)。 [0139] and, when a full-charge notification from the charging control unit 501 satisfies full-charge conditions (at step S22 is "Yes"), correction control unit 507 full charge rate estimating section estimating section 504 as a second acquiring charge amount of power storage to meet the full charge condition as a cumulative value Q Q (2) (step S28).

[0140] 由此,因二次电池4为满充电,所以,满充电比率推定部504推定第2蓄电比率Rb为“1”,第2蓄电比率RSOCb为100% (步骤S29)。 [0140] Thus, because the secondary battery 4 is fully charged, the full charge rate estimating section 504 estimates the second power storage rate Rb is "1", the second power storage RSOCb ratio is 100% (step S29). 然后,为了在后述的满充电容量值FCC的修正后接着反复执行满充电容量值FCC的修正,修正控制部507将用作第2推定部的满充电比率推定部504设为新的第I推定部(步骤S30),并转移至步骤S61。 Then, correction is repeatedly executed in order and then the full charge capacity FCC of the value after the full charge capacity FCC value correction described later, the correction control unit 507 as the full-charge ratio of the second estimating portion estimating section 504 as a new section I estimating section (step S30), and proceeds to step S61.

[0141] 另外,在反复执行步骤S21至S23时,如果蓄电比率RSOCv与基准值Ref —致而满足基准条件(在步骤S23为“是”),则修正控制部507将基准比率推定部506设为第2推定部,获取满足基准条件时的蓄电电量Q作为累计值Q (2)(步骤S31)。 [0141] Further, in step S21 to S23 is repeatedly executed, if the ratio of the power storage RSOCv reference value Ref - satisfies the reference condition actuator (in step S23 is "Yes"), then the correction control section 507 to the reference ratio estimation portion 506 as a second estimation unit acquires the stored electricity quantity Q when the condition is satisfied as a reference integrated value Q (2) (step S31).

[0142] 由此,因二次电池4的蓄电比率RSOCv与基准值Ref (% )相等,所以,基准比率推定部506将第2蓄电比率RSOCb设为基准值Ref (% )。 [0142] Thus, because the ratio of the power storage RSOCv secondary battery 4 and the reference value Ref (%) equal, the reference ratio estimating unit 506 to the second storage RSOCb ratio reference value Ref (%). 由于基准值Ref(%)以百分率表示比率,因此将其改写为比率并设定为第2蓄电比率Rb (步骤S32)。 Since the reference value (%) Ref ratio expressed as a percentage, so as to rewrite the set ratio and the second power storage ratio Rb (step S32).

[0143] 然后,为在满充电容量值FCC的修正后接着反复进行满充电容量值FCC的修正,修正控制部507将用作第2推定部的基准比率推定部506设为新的第I推定部(步骤S33),并转移至步骤S51。 [0143] Then, as the full charge capacity is then repeated after the full charge capacity value of the correction value correcting the FCC FCC, correction control unit 507 as the second reference ratio estimation portion estimating section 506 as a new estimation of I unit (step S33), and proceeds to step S51.

[0144] 接下来,在步骤S51至S54中执行与步骤S41至S44同样的处理,修正满充电容量值FCC,并且为了接着连续反复进行满充电容量值FCC的修正,将第2蓄电比率Rb设为第I、蓄电比率Ra,将累计值Q(I)设为累计值Q (2),并从步骤S54转移至步骤S61。 [0144] Next, in step S51 to S54 and steps S41 to perform the same processing, the correction value of the full charge capacity FCC S44, and then continuously repeated for the full charge capacity FCC of the correction value, the second power storage ratio Rb the first set I, power storage ratio Ra, the integrated value Q (I) is set to the integrated value Q (2), and transferred from step S54 to step S61.

[0145] 此时,在步骤S52与步骤S42 —样,与专利文献I所记载的方法相比,满充电容量修正部508能够提高满充电容量值FCC的修正精度。 [0145] In this case, in step S52, and step S42 - the value of the full charge capacity FCC of the sample correction accuracy, compared with the method described in Patent Document I, the full charge capacity can be improved correction section 508.

[0146] 下面对步骤S61以后的动作进行说明。 [0146] Next, the operation after step S61 will be described. 转移至步骤S61时,使用满充电比率推定部504与基准比率推定部506之中的任一个作为由第I推定部、或者第2推定部重新设定为新的第I推定部的第I推定部,当满足满充电条件时,或者当满足基准条件时,推定为第I蓄电比率Ra(包括由第2蓄电比率Rb重新设定后的第I蓄电比率Ra)。 Proceeds to step S61, the estimating section 504 using the ratio among the full charge of any reference ratio estimation portion 506 as estimated by a first section I, the second estimating portion or the re-set as a new estimation of I, I estimating portion unit, when the full charge condition is satisfied, or when the reference conditions are satisfied, the estimated power storage for the first I ratio Ra (including the first power storage I ratio after resetting by the ratio of the second power storage Rb Ra).

[0147] 因此,在步骤S61,为了接下来必定将开路比率推定部503设定为第2推定部,反复执行步骤S61,直到满足开路电压条件为止。 [0147] Thus, at step S61, the next in order to surely open ratio estimation portion 503 is set to the second estimation unit repeatedly executes step S61, the open-circuit voltage until the conditions are met. 据此,当使用满充电比率推定部504与基准比率推定部506之中的任一个作为第I推定部时,必定使用开路比率推定部503作为第2推定部。 Accordingly, when a full-charge ratio estimation portion 504 estimates the ratio of any one among the reference portion 506 as a first estimation unit I, must use an open-ratio estimating portion 503 as the second estimating portion. 因此,必定使用开路比率推定部503作为第I推定部和第2推定部之中的至少一个。 Thus, the ratio must be open to use as a first estimation unit 503 in estimating unit I and at least a second estimating portion.

[0148] 在此,由于满充电比率推定部504在二次电池4未被满充电时无法推定第I蓄电比率Ra和第2蓄电比率Rb,因此能够推定第I蓄电比率Ra和第2蓄电比率Rb的机会少,导致能够修正满充电容量值FCC的机会少。 [0148] Here, since the full-charge ratio estimation portion 504 when the secondary battery is not fully charged 4 can not estimate the first storage ratio Ra I and the second power storage rate Rb, it is possible to estimate the first power storage ratio Ra I and Rb 2 ratio less chance of storage, resulting in fewer opportunities can be corrected full charge capacity value of the FCC.

[0149] 另外,如上所述,与开路比率推定部503相比,基准比率推定部506对第I蓄电比率Ra和第2蓄电比率Rb的推定精度低,因此当使用基准比率推定部506时,满充电容量值FCC的修正精度下降。 [0149] Further, as described above, compared with the open ratio estimation portion 503, the reference ratio estimation accuracy of the estimation unit 506 is low the first power storage I ratio Ra and Rb ratio of the second power storage, so when using the reference ratio estimation portion 506 when the value of the full charge capacity FCC of the correction accuracy. 另外,如果用户不使二次电池4放电直到二次电池4的蓄电比率RSOCv达到被设定为例如10%以下的基准值Ref为止,基准比率推定部506就无法推定第I蓄电比率Ra和第2蓄电比率Rb,因此能够推定第I蓄电比率Ra和第2蓄电比率Rb的机会少,导致能够修正满充电容量值FCC的机会少。 Further, if the user is not discharged until the secondary battery 4 power storage RSOCv ratio reaches the secondary battery 4 is set, for example up to reference value Ref 10% or less, the reference ratio estimating unit 506 can not estimate the first storage ratio Ra I and a second storage rate Rb, it is possible to estimate at least a first storage opportunity I ratio Ra and Rb of the second power storage ratio, resulting in full charge capacity value can be corrected FCC fewer opportunities.

[0150] 与此相对,如果例如用户断开设备的电源开关等而二次电池4的充放电电流实质上为0,则开路比率推定部503就能够推定第I蓄电比率Ra和第2蓄电比率Rb。 [0150] On the other hand, for example if the user turns off the power switch or the like device charge-discharge current of the secondary battery 4 is substantially 0, the open ratio estimating unit 503 can estimate the ratio Ra I, and a second storage reservoir power ratio Rb. 因此,与满充电比率推定部504或基准比率推定部506相比,开路比率推定部503推定第I蓄电比率Ra和第2蓄电比率Rb的机会多。 Thus, the ratio of the full charge rate estimating section estimating portion 504 or 506 as compared to the reference, the open ratio estimation portion 503 estimates the opportunity of power storage ratio Ra I and the second plurality of power storage ratio Rb. 另外,与基准比率推定部506相比,开路比率推定部503推定第I蓄电比率Ra和第2蓄电比率Rb的精度高。 Further, as compared with the reference ratio estimation portion 506, the open ratio estimation portion 503 estimates the ratio of high accuracy power storage I of Ra and Rb is a ratio of the second power storage.

[0151] 因此,通过步骤S61,使用开路比率推定部503作为第I推定部和第2推定部之中的至少一个,从而能够增大满充电容量值FCC的修正机会,并且与基准比率推定部506推定第I蓄电比率Ra和第2蓄电比率Rb时相比,能够提高满充电容量值FCC的修正精度。 [0151] Thus, through step S61, the use ratio of the open portion 503 as a first estimation in the estimation unit I and at least a second estimation section, thereby increasing the opportunities for the full charge capacity FCC of the correction value, and estimating the ratio of the reference portion compared possible to improve the accuracy of the correction value of the full charge capacity FCC of the estimated 506 when the power storage ratio Ra I and the second power storage ratio Rb.

[0152] 并且,当电流值Ic的绝对值小于开路判定值Ith而满足开路电压条件时(在步骤S61为“是”),修正控制部507将开路比率推定部503设为第2推定部,并转移至步骤S62。 [0152] Then, when the absolute value of the current Ic is less than the determination value Ith open circuit voltage satisfies the condition (in step S61 is "Yes"), the correction control section 507 ratio estimation portion 503 to open the second estimation section, and proceeds to step S62. 以下,在步骤S62至S65执行与步骤S24至S27同样的处理,在步骤S66至S69执行与步骤S41至S44同样的处理。 Hereinafter, the same processing steps S62 through S65 and steps S24 to S27 performed, the same processing in step S66 to S69 and steps S41 to execute S44.

[0153] 据此,修正满充电容量值FCC,并且为了接着连续反复进行满充电容量值FCC的修正,将第2蓄电比率Rb设为第I蓄电比率Ra,将累计值Q(I)设为累计值Q (2),并从步骤S69再次转移至步骤S21。 [0153] Accordingly, the correction value of the full charge capacity FCC, and then continuously repeated for the full charge capacity FCC of the correction value, the ratio of the second power storage I, Rb is storage ratio Ra, the integrated value Q (I) is set to the integrated value Q (2), and transferred again from step S69 to step S21.

[0154] 此时,在步骤S67与步骤S42 —样,与专利文献I所记载的方法相比,满充电容量修正部508能够提高满充电容量值FCC的修正精度。 [0154] In this case, in step S67 and the step S42 - the value of the full charge capacity FCC of the sample correction accuracy, compared with the method described in Patent Document I, the full charge capacity can be improved correction section 508.

[0155] 此外,并不必须连续反复执行满充电容量值FCC的修正。 [0155] Further, the correction is not necessarily performed continuously and repeatedly full charge capacity value of the FCC. 例如,也可以不执行步骤S27、S44,从步骤S43转移至步骤SI。 For example, it may not perform the step S27, S44, S43 is transferred from step to step SI. 另外,还可以不执行步骤S30、S33、S54,从步骤S53转移至步骤SI。 Further, also may not perform step S30, S33, S54, S53 is transferred from step to step SI. 另外,也还可以不执行步骤S65、S69,从步骤S68转移至步骤SI。 In addition, also can not perform the step S65, S69, is transferred from step S68 to step SI.

[0156] 另一方面,当为了监视开路电压条件、满充电条件以及基准条件而反复执行步骤S4至S6时,如果有来自充电控制部501的满充电的通知而满足满充电条件(在步骤S5为“是”),则修正控制部507将满充电比率推定部504设为第I推定部,获取满足满充电条件时的蓄电电量Q作为累计值Q(I)(步骤S10)。 [0156] On the other hand, when the S4 to S6, if there is a notification from the charging control unit 501 fully charged condition satisfies full-charge conditions in order to monitor the open circuit voltage, a reference full-charge condition, and repeatedly executes step conditions (at step S5 "yES"), then the correction control section 507 full charge rate estimating section 504 is set to the stored electricity quantity when the first estimation unit I, a full charge conditions acquired integrated value Q as the Q (I) (step S10).

[0157] 由此,由于二次电池4达到满充电,因此,满充电比率推定部504推定第I蓄电比率Ra为“1”,第I蓄电比率RSOCa为100% (步骤Sll),并转移至步骤S61。 [0157] Accordingly, since the secondary battery 4 is fully charged, and therefore, the full charge rate estimating unit 504 estimates the first power storage I ratio Ra is "1", the first power storage I RSOCa ratio is 100% (step Sll), and proceeds to step S61.

[0158] 另外,当反复执行步骤S4至S6时,如果蓄电比率RSOCv与基准值Ref —致而满足基准条件(在步骤S6为“是”),则修正控制部507将基准比率推定部506设为第I推定部,获取满足基准条件时的蓄电电量Q作为累计值Q(I)(步骤S12)。 [0158] Further, when the steps S4 to S6 is repeatedly executed, if the ratio of the power storage RSOCv reference value Ref - satisfies the reference condition induced (at step S6 is "Yes"), then the correction control section 507 ratio estimation portion 506 reference the first set I estimating unit acquires the stored electricity quantity Q when the condition is satisfied as a reference integrated value Q (I) (step S12).

[0159] 由此,因二次电池4的蓄电比率RSOCv与基准值Ref (% )相等,所以,基准比率推定部506将第I蓄电比率RSOCa设为基准值Ref (%)。 [0159] Thus, because the ratio of the power storage RSOCv secondary battery 4 and the reference value Ref (%) equal, the reference ratio estimation portion 506 I of the power storage as a reference value ratio RSOCa Ref (%). 由于基准值Ref(%)以百分率表示比率,因此将其改写为比率并设定为第I蓄电比率Ra(步骤S13),并转移至步骤S61。 Since the reference value Ref (%) represents the ratio in percentage, so it is rewritten as a ratio and the ratio set to the first power storage I Ra (step S13), and proceeds to step S61.

[0160] 由于步骤S61以后的动作如上所述,因此省略其说明。 [0160] Since the operation after step S61 described above, the description thereof is omitted.

[0161] 图9、图10是用于说明使用开路比率推定部503作为第I推定部并使用满充电比率推定部504作为第2推定部时的满充电容量值FCC的修正方法的说明图。 [0161] FIG 9, FIG 10 is a ratio of the open-circuit value estimating unit 503 as the correction method of the FCC explanatory view when the first full charge capacity estimating unit I using the full charge rate estimating section 504 as a second estimation unit. 图9、图10的纵轴表示二次电池4的RS0C、横轴表示时间经过。 9 the vertical axis, FIG. 10 showing RS0C secondary battery 4, the horizontal axis represents time elapsed. 图9表示向负方向修正满充电容量值FCC时的例子,图10表示向正方向修正满充电容量值FCC时的例子。 9 shows an example in which the full charge capacity FCC correction value in the negative direction, FIG. 10 shows an example in which the full charge capacity FCC correction value in the positive direction.

[0162] 首先,在图9的时刻Tl的A点满足开路电压条件,开路比率推定部503推定第I蓄电比率Ra为0. 2 (第I蓄电比率RSOCa为20 % )。 [0162] First, an open circuit voltage condition satisfied time Tl at point A in FIG. 9, the open ratio estimation portion 503 estimates the first power storage I ratio Ra of 0.2 (ratio of power storage RSOCa I, 20%). 此时,设满充电容量值FCCO为4000mAh。 At this time, the full charge capacity value is set as FCCO 4000mAh.

[0163] 接下来,在时刻T2满足满充电条件,满充电比率推定部504推定第2蓄电比率Rb为1(第2蓄电比率RSOCb为100% ) (BI点)。 [0163] Next, at time T2 satisfies full-charge conditions, the full-charge ratio estimation portion 504 estimates the second power storage Rb is a ratio (ratio of the second power storage RSOCb of 100%) (BI point). 此时,设差值累计值Qd为3000mAh。 In this case, the integrated value of the difference Qd is set 3000mAh.

[0164] 由此,根据式(I),修正后的满充电容量值FCCN为 [0164] Thus, according to the formula (the I), the full charge capacity value is corrected FCCN

[0165] FCCN = 3000X1/(1-0. 2) = 3750mAh。 [0165] FCCN = 3000X1 / (1-0. 2) = 3750mAh.

[0166] 另一方面,使用式(2)至式(5)的差值修正方式计算满充电容量值FCCN时, [0166] On the other hand, the difference between the correction mode using the formula (2) to (5) when the full charge capacity value calculation FCCN,

[0167] QF = 4000X0. 2+3000 = 3800mAh [0167] QF = 4000X0. 2 + 3000 = 3800mAh

[0168] QS = 4000X1 = 4000mAh [0168] QS = 4000X1 = 4000mAh

[0169] 由于Ra < Rb且QF < QS,因此使用式⑷则为 [0169] Since Ra <Rb and QF <QS, so compared formula ⑷

[0170] FCCN = 4000- {| 4000-3800 | X (I/11-0. 2 |)} = 3750mAh。 [0170] FCCN = 4000- {| 4000-3800 | X (I / 11-0 2 |.)} = 3750mAh. [0171] 在图9中,在时刻T2,通过修正满充电容量值FCC,控制部50使用式(A)计算的RSOC(向设备侧电路3通知的RS0C)从B2点向BI点移动。 [0171] In FIG. 9, T2,, the control 50 uses the formula (A) calculates the RSOC (RS0C 3 notified to the device-side circuit) is moved from the point B2 to point BI value by correcting the full charge capacity FCC at a time. 如此,将根据满充电容量值FCC的修正使RSOC变化的处理称为JUMP处理(跳处理)。 Thus, to make the full charge capacity RSOC change value correction processing according to the FCC process is called JUMP (Jump process).

[0172] 接下来,参照图10,首先在时刻Tl的A点与图9中的A点是一样的。 [0172] Next, referring to FIG. 10, A first point A at time point Tl of FIG. 9 is the same. 接下来,在时刻T2满足满充电条件,满充电比率推定部504推定第2蓄电比率Rb为I (第2蓄电比率RSOCb为100% ) (BI点)。 Next, at time T2 satisfies full-charge conditions, the full-charge ratio estimation portion 504 estimates the ratio of the second power storage Rb is I (ratio of the second power storage RSOCb of 100%) (BI point). 此时,设差值累计值Qd为3400mAh。 In this case, the integrated value of the difference Qd is set 3400mAh.

[0173] 由此,根据式(I),修正后的满充电容量值FCCN为 [0173] Thus, according to the formula (the I), the full charge capacity value is corrected FCCN

[0174] FCCN = 3400 XI/(1-0. 2) = 4250mAh。 [0174] FCCN = 3400 XI / (1-0. 2) = 4250mAh.

[0175] 另一方面,当使用式(2)至式(5)的差值修正方式计算满充电容量值FCCN时, [0176] QF = 4000 X 0. 2+3400 = 4200mAh [0175] On the other hand, when the formula (2) the difference between the correction mode to the formula (5) calculating the full charge capacity value FCCN, [0176] QF = 4000 X 0. 2 + 3400 = 4200mAh

[0177] QS = 4000 XI = 4000mAh [0177] QS = 4000 XI = 4000mAh

[0178] 由于Ra < Rb且QF > QS,因此使用式(5)则为 [0178] Since Ra <Rb and QF> QS, so the use of formula (5) was

[0179] FCCN = 4000+ {| 4000-4200 | X (I/11-0. 2 |)} = 4250mAh。 [0179] FCCN = 4000+ {| 4000-4200 | X (I / 11-0 2 |.)} = 4250mAh.

[0180] 在图10中,在时刻T3,控制部50使用式(A)计算的RSOC超过100%。 [0180] In FIG 10, at time T3, the control unit 50 uses a calculation formula (A) RSOC than 100%. 但是,本来RSOC不会超过100 %,因此关于从时刻T3到时刻T2的期间,控制部50将RSOC固定为100 %并向设备侧电路3通知。 However, RSOC would not exceed 100%, so on the period T2, the control unit 50 from the RSOC fixed time T3 to the time of 100% to the apparatus-side circuit 3 notification. 如上所述地将向设备侧电路3通知的RSOC的值固定为100%的处理称为KEEP处理(维持处理)。 RSOC fixed value as described above will notify the device-side circuit 3 is 100% of the treatment process is referred to KEEP (maintaining process).

[0181] 如此,当采用差值修正方式时,虽然在满充电容量值FCCN的计算中使用修正前的满充电容量值FCC0,但是结果是满充电容量值FCCO中包含的误差消除,得到与使用式(I)时相同的满充电容量值FCCN。 [0181] Thus, when using the difference correction mode, while in the value calculation FCCN full charge capacity value of the full charge capacity using FCC0 before correction, but the result is the full charge capacity value of the error included in FCCO elimination, obtained using the same full charge capacity value when FCCN of formula (I). 因此,即使在使用差值修正方式的情况下,也能够得到与使用式(I)时同样的修正值,因此与专利文献I所记载的方法相比,满充电容量修正部508能够提高满充电容量值FCC的修正精度。 Accordingly, even in the case where the difference correction mode, the same can be obtained using the correction value of formula (I), as compared with the method described in Patent Document I, the full charge capacity correction section 508 full charge can be improved the FCC capacity value correction accuracy.

[0182] 图11、图12是用于说明使用开路比率推定部503作为第I推定部并使用基准比率推定部506作为第2推定部时的满充电容量值FCC的修正方法的说明图。 [0182] FIG. 11, FIG. 12 is a ratio of the open-circuit value estimating unit 503 as the correction method explained in FIG FCC when the first full charge capacity estimating unit and using the reference I ratio estimation portion 506 as a second estimation unit described. 图11、图12的纵轴表示二次电池4的RS0C、横轴表示时间经过。 FIG 11, FIG 12 the vertical axis represents RS0C secondary battery 4, the horizontal axis represents time elapsed. 图11表示向负方向修正满充电容量值FCC时的例子,图12表示向正方向修正满充电容量值FCC时的例子。 FIG 11 shows an example when the full charge capacity FCC correction value in the negative direction, FIG. 12 illustrates an example where the full charge capacity FCC correction value in the positive direction.

[0183] 首先,参照图11,在时刻T4的C点满足开路电压条件,开路比率推定部503推定第I蓄电比率Ra为0. 6(第I蓄电比率RSOCa为60% )。 [0183] First, referring to FIG 11, at time point C, the open circuit voltage and T4 satisfy the condition, the open ratio estimation portion 503 estimates the first power storage I ratio Ra is 0.6 (ratio of power storage I RSOCa 60%). 满充电容量值FCCO设为4000mAh。 FCCO full charge capacity value is set 4000mAh.

[0184] 接下来,在时刻T5满足基准条件,基准比率推定部506推定第2蓄电比率RSOCb为基准值Ref ( = 5. 5% ),第2蓄电比率Rb为Ref/100( = 0. 055) (Dl点)。 [0184] Next, at time T5 satisfies a reference condition, the reference ratio estimation portion 506 estimates the ratio of the second power storage RSOCb reference value Ref (= 5. 5%), a ratio Rb of the second power storage Ref / 100 (= 0 . 055) (Dl point). 此时,设差值累计值Qd为-2000mAh。 In this case, the integrated value of the difference Qd is set -2000mAh.

[0185] 由此,根据式(I),修正后的满充电容量值FCCN为 [0185] Thus, according to the formula (the I), the full charge capacity value is corrected FCCN

[0186] FCCN = -2000X1/(0. 055-0. 6) = 3670mAh。 [0186] FCCN = -2000X1 / (0. 055-0. 6) = 3670mAh.

[0187] 另一方面,当使用式(2)至式(5)的差值修正方式计算满充电容量值FCCN时, [0187] On the other hand, when the formula (2) the difference between the correction mode to the formula (5) calculating the full charge capacity value FCCN,

[0188] QF = 4000 X 0. 6-2000 = 400mAh [0188] QF = 4000 X 0. 6-2000 = 400mAh

[0189] QS = 4000X0. 055 = 220mAh [0189] QS = 4000X0. 055 = 220mAh

[0190] 由于Ra > Rb且QF > QS,因此使用式⑷则为 [0190] Since Ra> Rb and QF> QS, so compared formula ⑷

[0191] FCCN = 4000-{I 220-400 X (1/|0. 055-0. 6 |)} = 3670mAh。 [0191] FCCN = 4000- {I 220-400 X (1 / |.. 0 055-0 6 |)} = 3670mAh. 在图11 中,在时刻T5执行JUMP处理。 In FIG 11, T5 JUMP processing performed at the time. [0192] 接下来,参照图12,首先时刻T4的C点与图11中的C点是一样的。 [0192] Next, with reference to FIG. 12, the first time T4 and point C point C in FIG. 11 is the same. 接下来,在时刻T5满足基准条件,基准比率推定部506推定第2蓄电比率RSOCb为基准值Ref ( = 5. 5 % ),第2蓄电比率Rb为Ref/100 ( = 0. 055) (Dl点)。 Next, at time T5 satisfies a reference condition, the reference ratio estimation portion 506 estimates the ratio of the second power storage RSOCb reference value Ref (= 5. 5%), a ratio Rb of the second power storage Ref / 100 (= 0. 055) (Dl point). 此时,设差值累计值Qd为-2360mAh。 In this case, the integrated value of the difference Qd is set -2360mAh.

[0193] 由此,根据式(I),修正后的满充电容量值FCCN为 [0193] Thus, according to the formula (the I), the full charge capacity value is corrected FCCN

[0194] FCCN = -2360X1/(0. 055-0. 6) = 4330mAh。 [0194] FCCN = -2360X1 / (0. 055-0. 6) = 4330mAh.

[0195] 另一方面,当使用式(2)至式(5)的差值修正方式计算满充电容量值FCCN时, [0195] On the other hand, when the formula (2) the difference between the correction mode to the formula (5) calculating the full charge capacity value FCCN,

[0196] QF = 4000 X 0. 6-2360 = 40mAh [0196] QF = 4000 X 0. 6-2360 = 40mAh

[0197] QS = 4000X0. 055 = 220mAh [0197] QS = 4000X0. 055 = 220mAh

[0198] 由于Ra > Rb且QF < QS,因此使用式(5)则为 [0198] Since Ra> Rb and QF <QS, so the use of formula (5) was

[0199] FCCN = 4000+{I 220-40 IX (1/|0. 055-0. 6 |)} = 4330mAh。 [0199] FCCN = 4000+ {I 220-40 IX (1 / |.. 0 055-0 6 |)} = 4330mAh. 在图12 中,在时刻T6至T5执行KEEP处理。 In FIG 12, processing KEEP performed at time T6 to T5.

[0200] 如此,即使在使用开路比率推定部503作为第I推定部并使用基准比率推定部506作为第2推定部时使用差值修正方式的情况下,也能够得到与使用式(I)时同样的修正值,因此与专利文献I所记载的方法相比,满充电容量修正部508能够提高满充电容量值FCC的修正精度。 [0200] Thus, even in a case where the difference correction mode estimating portion and the first I ratio estimation portion 506 using as a reference the second estimation section estimating the open-circuit section 503 as a ratio, it is possible when using the formula (I) to give the same correction value as compared with the method described in Patent Document I, the full charge capacity correction section 508 can be increased value of the full charge capacity FCC of the correction accuracy.

[0201] 图13、图14是用于说明使用开路比率推定部503作为第I推定部和第2推定部时的满充电容量值FCC的修正方法的说明图。 [0201] FIG. 13, FIG. 14 is a diagram illustrating the open-circuit ratio estimating portion 503 as the correction value by the FCC when the first full charge capacity estimating section I and a second estimation unit described. 图13、图14的纵轴表示二次电池4的RS0C、横轴表示时间经过。 FIG 13, FIG 14 the vertical axis represents the RS0C secondary battery 4, the horizontal axis represents time elapsed. 图13表示向负方向修正满充电容量值FCC时的例子,图14表示向正方向修正满充电容量值FCC时的例子。 FIG 13 illustrates an example where the value of the full charge capacity FCC corrected in the negative direction, FIG. 14 illustrates an example where the full charge capacity FCC correction value in the positive direction.

[0202] 首先,在时刻T7的E点满足开路电压条件,开路比率推定部503推定第I蓄电比率Ra为0. 6(第I蓄电比率RSOCa为60% )。 [0202] First, at time point E T7 open voltage condition is satisfied, the open ratio estimation portion 503 estimates the first power storage I ratio Ra is 0.6 (ratio of power storage I RSOCa 60%). 设满充电容量值FCCO为4000mAh。 FCCO set full charge capacity value is 4000mAh.

[0203] 接下来,在时刻T8满足开路电压条件,开路比率推定部503推定第2蓄电比率Rb为0. 1(第2蓄电比率RSOCb为10% ) (Fl点)。 [0203] Next, at time T8 the open-circuit voltage condition satisfied, the open ratio estimation portion 503 estimates the ratio of the second power storage Rb is 0.1 (ratio of the second power storage RSOCb of 10%) (Fl point). 此时,设差值累计值Qd为-1800mAh。 In this case, the integrated value of the difference Qd is set -1800mAh.

[0204] 由此,根据式(I),修正后的满充电容量值FCCN为 [0204] Thus, according to the formula (the I), the full charge capacity value is corrected FCCN

[0205] FCCN = -1800X1/(0. 1-0. 6) = 3600mAh。 [0205] FCCN = -1800X1 / (0. 1-0. 6) = 3600mAh.

[0206] 另一方面,当使用式(2)至式(5)的差值修正方式计算满充电容量值FCCN时, [0206] On the other hand, when the formula (2) the difference between the correction mode to the formula (5) calculating the full charge capacity value FCCN,

[0207] QF = 4000X0. 6-1800 = 600mAh [0207] QF = 4000X0 6-1800 = 600mAh.

[0208] QS = 4000 X 0. I = 400mAh [0208] QS = 4000 X 0. I = 400mAh

[0209] 由于Ra > Rb且QF > QS,因此使用式⑷则为 [0209] Since Ra> Rb and QF> QS, so compared formula ⑷

[0210] FCCN = 4000-{| 400-600 | X (I/ | 0. 1-0. 6 |)} = 3600mAh。 [0210] FCCN = 4000- {| 400-600 | X (I / |. 0. 1-0 6 |)} = 3600mAh. 在图13 中,在时刻T8执行JUMP处理。 In FIG 13, at time T8 JUMP execution process.

[0211] 接下来,参照图14,首先时刻17的E点与图13中的E点是一样的。 [0211] Next, referring to FIG. 14, first, the time point E and point E 17 in FIG. 13 is the same. 接下来,在时刻T8满足开路电压条件,开路比率推定部503推定第2蓄电比率Rb为0. I (第2蓄电比率RSOCb为10% ) (Fl点)。 Next, at time T8 the open-circuit voltage condition satisfied, the open ratio estimation portion 503 estimates the ratio of the second power storage Rb is 0. I (ratio of the second power storage RSOCb of 10%) (Fl point). 此时,设差值累计值Qd为-2200mAh。 In this case, the integrated value of the difference Qd is set -2200mAh.

[0212] 由此,修正后的满充电容量值FCCN根据式⑴为 [0212] Thus, the corrected value of the full charge capacity FCCN according to formula ⑴

[0213] FCCN = -2200X1/(0. 1-0. 6) = 4400mAh。 [0213] FCCN = -2200X1 / (0. 1-0. 6) = 4400mAh.

[0214] 另一方面,当使用式(2)至式(5)的差值修正方式计算满充电容量值FCCN时, [0214] On the other hand, when the formula (2) the difference between the correction mode to the formula (5) calculating the full charge capacity value FCCN,

[0215] QF = 4000X0. 6-2200 = 200mAh [0215] QF = 4000X0 6-2200 = 200mAh.

[0216] QS = 4000X0. I = 400mAh[0217] 由于Ra > Rb且QF < QS,因此使用式(5)则为 [0216] QS = 4000X0. I = 400mAh [0217] Since Ra> Rb and QF <QS, so the use of formula (5) was

[0218] FCCN = 4000+ {| 400-200 | X (I/ | 0. 1-0. 6 |)} = 4400mAh。 [0218] FCCN = 4000+ {| 400-200 | X (I / |. 0. 1-0 6 |)} = 4400mAh. 在图14 中,在时刻T8执行JUMP处理。 In FIG 14, at time T8 JUMP execution process.

[0219] 如此,即使在将开路比率推定部503作为第I推定部和第2推定部时使用差值修正方式的情况下,也能够得到与使用式(I)时同样的修正值,因此与专利文献I所记载的方法相比,满充电容量修正部508能够提高满充电容量值FCC的修正精度。 [0219] Thus, even when the open ratio estimating unit 503 using the difference as the correction mode in the first section I and a second estimation unit estimating, the same can be obtained using the correction value of formula (I), therefore the method described in Patent Document I compared to the full charge capacity correction section 508 can be increased value of the full charge capacity FCC of the correction accuracy.

[0220] 此外,作为推定部示出了包括开路比率推定部503、满充电比率推定部504以及基准比率推定部506的例子,但也可以不包括基准比率推定部506,而包括开路比率推定部503和满充电比率推定部504,将开路比率推定部503作为第I推定部和第2推定部的其中之一推定部,将满充电比率推定部504作为另一推定部。 [0220] Further, the estimation unit is shown comprising an open ratio estimation portion 503, a full charge rate estimating section 504 and the reference ratio estimating example 506, but may not include the reference ratio estimation portion 506, and includes an open ratio estimation portion 503 and full charge rate estimating section 504, the open ratio estimation portion 503 as a first section I and a second estimation section estimating portion estimating one of the full charge rate estimating section estimating portion 504 as another.

[0221 ] 另外,还可以不包括满充电比率推定部504,而包括开路比率推定部503和基准比率推定部506,将开路比率推定部503作为第I推定部和第2推定部的其中之一推定部,将基准比率推定部506作为另一推定部。 One [0221] Further, also may not include a full charge rate estimating section 504 but includes an open ratio estimation portion 503 and the reference ratio estimation portion 506, the open ratio estimation portion 503 as a first section I and a second estimation section estimating wherein estimating section, the reference ratio estimation portion estimating section 506 as another.

[0222] 另外,也还可以不包括满充电比率推定部504和基准比率推定部506,而将满充电比率推定部504作为第I推定部和第2推定部。 [0222] Further, also can not include a full charge rate estimating section 504 and the reference ratio estimating unit 506, and the estimated full charge rate estimating section 504 as a first section I and a second estimating portion.

[0223] 另外,与开路比率推定部503组合使用的推定部并不限于满充电比率推定部504和基准比率推定部506,也可以通过其他方法推定二次电池4的蓄电比率。 [0223] In addition, the open ratio estimating unit estimating portion 503 in combination with the use of the ratio is not limited to a full charge estimation unit 504 and the reference ratio estimation portion 506, the ratio may be estimated storage secondary battery 4 by other methods.

[0224] S卩,本发明所涉及的满充电容量修正电路包括:累计部,通过累计流经二次电池的电流的电流值而计算累计值;容量存储部,存储表示所述二次电池的满充电容量的满充电容量值;第I推定部,当满足作为能够推定蓄电比率的条件的可推定条件时,将所述二次电池的蓄电比率推定为第I蓄电比率,其中,所述蓄电比率为蓄积于所述二次电池中的蓄电电量相对于该二次电池的实际的满充电容量的比率;第2推定部,在由所述第I推定部推定所述第I蓄电比率之后,监视是否满足作为能够推定所述蓄电比率的条件的可推定条件,当满足该可推定条件时,将此时的所述二次电池的蓄电比率推定为第2蓄电比率;满充电容量修正部,基于差值累计值以及所述第I蓄电比率和所述第2蓄电比率之差与I的比率,推定所述二次电池的满充电容量值,通过将该推定出的 [0224] S Jie, the full charge capacity correction circuit according to the present invention comprises: accumulation unit, calculates the current value flowing in the secondary battery integrated current accumulated value; capacity storage unit, the secondary battery stores a full charge capacity value of the full charge capacity; second estimation unit I, as a condition when the estimated power storage ratio can be estimated condition is satisfied, the ratio of the secondary storage battery is estimated as the ratio of the first power storage I, wherein the ratio is stored in the storage of the secondary battery with respect to the ratio of the actual power storage quantity of the full charge capacity of the secondary battery; second estimation unit, by the first estimation unit estimates the second I after storage I ratio, as a condition of the power storage ratio can be estimated may be estimated condition monitoring is satisfied, when satisfying the condition can be estimated, the estimated ratio of the power storage of the secondary battery at this time is the second accumulator power ratio; full charge capacity correction unit based on the difference between the integrated value and the ratio of the difference between I and I power storage ratio of the second power storage ratio, the estimated value of the full charge capacity of the secondary battery, by the estimated 充电容量值作为新的满充电容量值存储于所述容量存储部来修正满充电容量值,其中,所述差值累计值为在所述第I推定部推定所述第I蓄电比率起至所述第2推定部推定所述第2蓄电比率为止的期间由所述累计部累计的累计值;开路比率推定部,将开路电压条件作为所述可推定条件,当满足该开路电压条件时,基于所述二次电池的端子电压推定所述二次电池的蓄电比率,其中,所述开路电压条件以当流经所述二次电池的电流小于用于判定该二次电池的端子电压是否为开路电压而预先设定的开路判定值为条件;以及修正控制部,将所述第I推定部和所述第2推定部中的至少一个设定为所述开路比率推定部。 Charge capacity value as the new value of the full charge capacity stored in the mass storage unit corrects the full charge capacity value, wherein the difference in the integrated value I of the estimation unit estimates a ratio of power storage until I the second estimating unit estimates the second period until the ratio of the storage of the integral value of the integrating unit; open ratio estimation unit, an open circuit voltage condition for the estimation of said condition, the open-circuit voltage when the condition is satisfied , the terminal voltage of the secondary battery based on the estimated ratio of the secondary storage battery, wherein, when the open-circuit voltage condition to a current flowing through the secondary battery is less than the terminal voltage for determining the secondary battery whether the open-circuit voltage and the open-circuit determination value preset condition; and correction control unit, at least one of the open ratio is set to the estimation of the first section I and the second estimation section estimating portion.

[0225] 根据该结构,当满足能够推定二次电池的蓄电比率的条件即可推定条件时,由第I推定部推定该二次电池的蓄电比率作为第I蓄电比率。 [0225] According to this configuration, when the secondary battery can be estimated to meet the storage conditions may be estimated ratio condition, by the first estimating unit I ratio of the power storage of the secondary battery as the storage I ratio. 而且,在第I推定部推定出第I蓄电比率之后,由第2推定部监视是否满足与所述推定条件相同或不同的可推定条件,当满足该可推定条件时,推定此时的二次电池的蓄电比率作为第2蓄电比率。 Further, after the first I I estimation section estimates the first power storage ratio, by the second estimation unit monitors whether the same or different satisfy the condition may be estimated estimation condition is satisfied when the condition may be estimated, at this time di estimated the ratio of storage of the secondary battery as a second power storage ratio.

[0226] 在此,第I蓄电比率和第2蓄电比率之差是根据相当于差值累计值的电量而产生的。 [0226] Here, the difference between the first ratio and the second power storage I ratio of the storage battery based on the integrated value corresponding to a difference produced. 而且,满充电容量值与比率“I”、即100%对应。 Moreover, the full charge capacity value of the ratio of "I", i.e., corresponding to 100%. 因此,满充电容量修正部能够根据第I蓄电比率和所述第2蓄电比率之差与满充电容量值所对应的比率即I之间的比率、以及差值累计值,推定二次电池的满充电容量值。 Thus, the correction section can be the full charge capacity is the ratio between the I, and the difference integration value ratio of the first power storage I ratio and the ratio of the difference between the second power storage and the full charge capacity value corresponding to the estimated secondary battery the full charge capacity value. 满充电容量修正部通过如上所述地推定修正后的满充电容量值,从而能够不受修正前的满充电容量值中包含的误差的影响而修正满充电容量值,其结果,与专利文献I所记载的方法相比能够提高满充电容量的修正精度。 Full charge capacity correction unit full charge capacity estimated value corrected as described above, so that the influence of the full charge capacity value without being corrected before the error included in the corrected value of the full charge capacity, as a result, the Patent Document I the method described in the correction accuracy can be improved compared to the full charge capacity.

[0227] 而且,开路比率推定部基于满足所述开路电压条件时的二次电池的端子电压、SP该二次电池的开路电压推定所述二次电池的蓄电比率。 [0227] Further, the ratio of the open circuit voltage estimating unit based on a terminal of the secondary battery when the open-circuit voltage condition is satisfied, the open circuit voltage of the secondary battery SP estimating the ratio of storage of the secondary battery. 二次电池的开路电压为二次电池的电动势本身,二次电池的电动势根据二次电池的蓄电比率而决定,因此基于开路电压推定蓄电比率的开路比率推定部能够高精度地推定二次电池的蓄电比率。 The open circuit voltage of the secondary battery is a secondary battery itself electromotive force, the electromotive force of the secondary battery is determined according to the ratio of the secondary storage battery, and therefore based on the estimated open circuit voltage estimation unit a ratio of the power storage ratio can be accurately estimated secondary the ratio of the storage battery. 另外,流经二次电池的电流小于开路判定值的开路电压条件例如在用户断开使用该二次电池的设备的开关等时得到满足的可能性高。 Further, a current flowing in the secondary battery is less than the open circuit voltage condition value is determined, for example, to obtain a high possibility satisfied when the user disconnects the secondary battery using a switch or the like device. 因此,可以认为与二次电池满充电、或完全放电的机会相比,开路电压条件得到满足的机会更多。 Thus, the secondary battery is considered fully charged, the opportunity or opportunities as compared to the fully discharged, the open circuit voltage of more conditions are met.

[0228] 因此,修正控制部将以满足开路电压条件为条件的开路比率推定部设为第I推定部和第2推定部之中的至少一个,从而能够增大蓄电比率的推定机会。 [0228] Accordingly, correction control unit will be an open circuit voltage estimation unit is set to satisfy the condition estimation among the portions of I and at least a second estimation section, thereby increasing the opportunity to estimate the ratio of the power storage ratios is open condition. 而且,如果蓄电比率的推定机会增大,则能够增大满充电容量的修正机会。 Further, if the ratio of the estimated power storage opportunity is increased, it is possible to increase the opportunities for correction of the full charge capacity. 据此,能够增大满充电容量的修正机会,并且与专利文献I所记载的方法相比,能够提高满充电容量的修正精度。 Thus, the correction can be increased opportunities for the full charge capacity, as compared with the method described in Patent Document I, it is possible to improve the correction accuracy of the full charge capacity.

[0229] 另外,较为理想的是,还包括:满充电检测部,检测所述二次电池达到满充电;以及 [0229] Further, it is preferable, further comprising: a full charge detecting unit detecting full charge of the secondary battery reaches; and

[0230] 满充电比率推定部,使用以所述满充电检测部检测出所述二次电池的满充电为条件的满充电条件作为所述可推定条件,当满足该满充电条件时,推定为所述二次电池的蓄电比率为1,其中,所述修正控制部,将所述开路比率推定部设定为所述第I推定部和所述第2推定部的其中之一推定部,并将所述满充电比率推定部设定为另一推定部。 [0230] full-charge ratio estimation unit, using the full charge at full charge detecting section detects the condition of the secondary battery is fully charged condition can be estimated as the conditions satisfied when the full charge condition, estimated as the ratio of storage of the secondary battery 1, wherein the correction control section, the rate estimation unit is set to open the first one I wherein estimating portion estimating portion and said second estimating portion, and the estimation unit is set to another portion of the full charge rate estimating.

[0231] 根据该结构,满充电检测部检测二次电池达到满充电。 [0231] According to this structure, the full charge detecting unit detects the secondary battery is fully charged. 由此,当满足上述满充电条件时,则意味二次电池的蓄电比率几乎确实地达到1(100% )。 Whereby, when said full charge condition is satisfied, it means that the ratio of the secondary storage battery is almost surely reaches 1 (100%). 因此,满充电比率推定部在满足满充电条件时,推定为二次电池的蓄电比率为1(100% ),从而能够以极高精度推定蓄电比率。 Thus, the full charge rate estimating section at full charge condition is met, estimated as the ratio of the secondary storage battery is 1 (100%), it is possible to estimate the power storage ratio with extremely high precision.

[0232] 因此,修正控制部将开路比率推定部设为第I推定部和第2推定部的其中之一推定部,并将满充电比率推定部设为另一推定部,从而组合蓄电比率的推定精度极高的满充电比率推定部和蓄电比率的推定机会比满充电比率推定部多的开路比率推定部来修正满充电容量,由此易于均衡地兼顾修正精度的提高和修正机会的增大。 [0232] Thus, the correction control section ratio estimation portion to open one of the first estimating portion estimating section I and the second estimating portion, and the estimating portion estimating unit to another full charging rate, so that the ratio of combination of power storage high accuracy of estimating the full charge rate estimating section estimating the opportunity and the power storage ratio than the full charge rate estimating section estimating the ratio of number of the open portion corrects the full charge capacity, thereby improving both balanced and easy correction accuracy of the correction opportunities increases.

[0233] 另外,较为理想的是,还包括:电压换算比率获取部,基于所述二次电池的端子电压,获取所述二次电池的蓄电比率;以及基准比率推定部,使用所述电压换算比率获取部获取的蓄电比率达到预先设定的基准值的基准条件作为所述可推定条件,当满足该基准条件时,推定为所述二次电池的蓄电比率为所述基准值,其中,所述修正控制部,将所述开路比率推定部设定为所述第I推定部和所述第2推定部的其中之一推定部,并将所述基准比率推定部设定为另一推定部。 [0233] Further, it is preferable, further comprising: a voltage conversion ratio acquiring unit, based on the terminal voltage of the secondary battery, obtaining a ratio of the storage of the secondary battery; and a reference ratio estimation unit, using the voltage the conversion rate of the acquisition unit acquires the power storage ratio reaches a preset reference value as the reference condition may be estimated condition, when the reference condition is satisfied, the secondary battery is estimated as a ratio of the reference value storage, wherein the correction control section, the open ratio is set to the first estimating portion estimating I wherein one portion and the second estimating portion estimating unit estimating section and the reference ratio is set to another an estimation unit.

[0234] 二次电池的端子电压根据蓄电比率而变化。 Terminal voltage [0234] of the secondary battery varies depending on the ratio of the power storage. 利用该性质,电压换算比率获取部基于二次电池的端子电压获取蓄电比率。 Utilizing this property, the voltage conversion ratio based on the ratio acquisition unit acquires the terminal voltage of the secondary storage battery. 而且,当电压换算比率获取部获取的蓄电比率与基准值一致时,该二次电池的蓄电比率与该基准值相等,因此基准比率推定部直接将基准值作为二次电池的蓄电比率,从而能够推定二次电池的蓄电比率。 Further, when the same voltage acquisition unit acquires the conversion rate of the power storage ratio reference value, the ratio of the power storage of the secondary battery with the reference value are equal, so the ratio of the reference value estimating section directly as the reference rate of the secondary battery storage , it is possible to estimate the ratio of the secondary storage battery. 由此,通过将基准值适当地设定为与满充电或完全放电不同的蓄电比率,从而即使不进行满充电或完全放电,也能够推定二次电池的蓄电比率,因此蓄电比率的推定机会增大。 Accordingly, by appropriately setting the reference value for the full discharge and full charge, or different ratios of storage, even if not fully charged or fully discharged, it is possible to estimate the ratio of the secondary storage battery, so the ratio of power storage presumed chance increases.

[0235] 因此,修正控制部将开路比率推定部设为第I推定部和第2推定部的其中之一推定部,并将基准比率推定部设为另一推定部,从而组合蓄电比率的推定机会多的基准比率推定部和与基准比率推定部相比蓄电比率的推定精度高且蓄电比率的推定机会比满充电比率推定部多的开路比率推定部来修正满充电容量,由此易于均衡地兼顾修正精度的提高和修正机会的增大。 [0235] Thus, the correction control section ratio estimation portion to open one of the first estimating portion estimating section I and the second estimating portion, and reference ratio estimation portion estimating unit to another, so that the composition ratio of the power storage high estimation accuracy and more opportunities for estimating the reference ratio estimation unit and compared with the reference ratio and the ratio estimation unit estimates the power storage ratio estimating opportunity storage portion more open ratio estimation portion corrects the full charge capacity ratio than the full charge, whereby balanced and easy to improve both the accuracy of the opportunity to amend the amendment increases.

[0236] 另外,较为理想的是,还包括:满充电检测部,检测所述二次电池达到满充电;满充电比率推定部,使用以所述满充电检测部检测出所述二次电池的满充电为条件的满充电条件作为所述可推定条件,当满足该满充电条件时,推定为所述二次电池的蓄电比率为I ;电压换算比率获取部,基于所述二次电池的端子电压,获取所述二次电池的蓄电比率;以及基准比率推定部,使用所述电压换算比率获取部获取的蓄电比率达到预先设定的基准值的基准条件作为所述可推定条件,当满足该基准条件时,推定为所述二次电池的蓄电比率为所述基准值,其中,所述修正控制部,当满足所述开路电压条件、所述满充电条件以及所述基准条件中的任一个时,将使用以该满足的条件为所述可推定条件的推定部设定为所述第I推定部,当将所述开路比率推定部设定为该 [0236] Further, it is preferable, further comprising: a full charge detecting unit detecting full charge of the secondary battery reaches; full charge ratio estimation unit used in the full charge detecting unit detects that the secondary battery full charge condition as a condition of the full charge condition may be estimated, when the full charge condition is satisfied, the secondary battery is estimated as a ratio of the power storage I; voltage conversion rate acquiring unit, based on said secondary battery terminal voltage of the secondary battery storage obtaining the ratio; and a reference ratio estimation unit, using the voltage acquisition unit acquires the conversion rate of the power storage ratio reaches a preset reference value as the reference condition may be estimated condition, when the reference condition is met, estimated as the ratio of the secondary storage battery is the reference value, wherein the correction control section, the reference condition is satisfied when the open circuit voltage condition and said full-charge condition when any one of the portion used to condition the estimation of said estimated satisfying condition I set as the first estimation unit, when the open ratio estimating unit for setting I推定部时,将该开路比率推定部、所述满充电比率推定部以及所述基准比率推定部中的任一个推定部设定为所述第2推定部,当将所述满充电比率推定部和所述基准比率推定部中的任一个推定部设定为该第I推定部时,将所述开路比率推定部设定为所述第2推定部。 When I estimating unit estimating the ratio of the open portion, the full charge rate estimating section and the reference ratio estimating section according to any one of the second set estimating portion estimating section 2, when the estimated full-charge ratio of the ratio estimating section and the reference section of any one set for the first estimating portion estimating section I, the rate estimation unit is set to open the second estimating portion.

[0237] 根据该结构,当满足开路电压条件、满充电条件以及基准条件之中的任一个时,修正控制部将以该满足的条件作为可推定条件的推定部设为第I推定部,因此蓄电比率的推定机会增大。 [0237] According to this structure, when the condition is satisfied in any of the open-circuit voltage, the full-charge condition, and when a reference condition, the correction control unit will meet a condition estimation unit may estimate the set I of estimating portion, presumption opportunity storage rate increases. 另外,修正控制部当将开路比率推定部设为第I推定部时,将开路比率推定部、满充电比率推定部、以及基准比率推定部之中的任一个推定部设为第2推定部,当将满充电比率推定部和基准比率推定部之中的任一个推定部设为该第I推定部时,将开路比率推定部设为第2推定部。 Further, the correction control section when the open ratio is set to the first estimating portion estimating section I, the open ratio estimation unit, in any portion of the full charge rate estimating section, and a reference ratio estimating section estimating section estimating the second set, when the full charge rate estimating section and the reference ratio among any of estimating portion estimating a first portion I is set to the estimation unit, estimating a ratio of the open portion to the second estimating portion. 其结果,蓄电比率的推定精度高于基准比率推定部、且蓄电比率的推定机会多于满充电比率推定部的开路比率推定部被设定为第I推定部和第2推定部之中的至少一个,其结果,易于均衡地兼顾修正精度的提高和修正机会的增大。 As a result, estimation accuracy of the ratio of the power storage unit higher than the reference ratio estimation, and estimates the opportunity to open the power storage ratio than the ratio of the full charge rate estimating section estimating portion is set to the I and the second estimation section estimating portion among at least one, as a result, easy to improve both balanced and correct the opportunity to amend accuracy increases.

[0238] 另外,较为理想的是,所述修正控制部,当由所述第2推定部推定出所述第2蓄电比率,且由所述满充电容量修正部使新的满充电容量值存储在所述容量存储部中时,将被设定为该第2推定部的推定部重新设定为所述第I推定部,并通过将该推定出的第2蓄电比率设定为所述第I蓄电比率,将该新的第I蓄电比率作为被推定值来进行新的所述第2推定部的设定。 [0238] Further, it is preferable that the correction control section, when estimated by the second estimating portion a ratio of the second power storage, and so that the new full charge capacity value of the full charge capacity correction section stored in the mass storage unit, is set as the second estimating portion estimating unit is reset to the first estimating portion I, and the second set by the ratio of the estimated power storage to the I ratio of said first power storage, to set a new second portion of the estimation of the new storage I ratio as the estimated value.

[0239] 根据该结构,在修正满充电容量值后,修正控制部将在该满充电容量值的修正中使用的第2蓄电比率设定为用于下次修正的第I蓄电比率。 [0239] According to this structure, the full charge capacity value after the correction, the correction ratio of the second storage control unit to be used in the correction of the full charge capacity value is set for the next power storage Clauses I ratio. 这样,无需在下次满足可推定条件时重新推定第I蓄电比率,并在下次满足指定的可推定条件时推定第2蓄电比率并再次修正满充电容量值,从而能够连续重复进行满充电容量值的修正。 This eliminates the need to re-estimation of the next time I meet ratio when power storage conditions may be estimated, and the next estimation satisfies specified ratio of the second power storage conditions may be estimated, and correcting the full charge capacity value again, can be repeated continuously for the full charge capacity correction value. 其结果,能够增大满充电容量值的修正机会。 As a result, the correction can be increased opportunities for the full charge capacity value.

[0240] 另外,较为理想的是,所述满充电容量修正部,通过将从所述第I蓄电比率减去所述第2蓄电比率而得到的差值的倒数与所述差值累计值相乘来计算所述新的满充电容量值。 [0240] Further, it is preferable that the difference between the reciprocal of the full charge capacity correction section, obtained by subtracting the second from the first storage by a ratio of power storage I ratio differences accumulated calculating a new value by multiplying the value of the full charge capacity.

[0241] 根据该结构,由于满充电容量修正部不使用修正前的满充电容量值就能够计算新的满充电容量值,因此能够不受修正前的满充电容量值中包含的误差的影响而修正满充电容量值。 [0241] According to this structure, since the impact can be calculated new full charge capacity value of the full charge capacity correction section does not use the full charge capacity value before correction, and therefore the full charge capacity value before the correction can not be included in an error correcting the full charge capacity value. 因此,能够提高满充电容量值的修正精度。 Accordingly, it is possible to improve the correction accuracy of the full charge capacity value.

[0242] 另外,较为理想的是,所述满充电容量修正部,当设所述第I蓄电比率为Ra、所述第2蓄电比率为Rb、所述差值累计值为Qd时,基于下述式(I)计算所述新的满充电容量值FCCN, [0242] Further, it is preferable that the full charge capacity correction unit, when the storage of the I-set ratio Ra, the ratio of the second power storage Rb, the difference integrated value Qd, based on the new value of the full charge capacity by the following formula (I) calculating the FCCN,

[0243]满充电容量值 FCCN = QdX I/(Rb-Ra) ......(I)。 [0243] full charge capacity value FCCN = QdX I / (Rb-Ra) ...... (I).

[0244] 根据该结构,由于满充电容量修正部能够使用不包含修正前的满充电容量值的式 [0244] According to this configuration, since the full charge capacity can be used without correcting unit formula contain the full charge capacity value before correction

(1)计算新的满充电容量值,因此能够不受修正前的满充电容量值中包含的误差的影响而修正满充电容量值。 (1) calculating a new value of the full charge capacity, the full charge capacity value thus affecting without being corrected before the error included in the corrected value of the full charge capacity. 因此,能够提高满充电容量值的修正精度。 Accordingly, it is possible to improve the correction accuracy of the full charge capacity value.

[0245] 另外,还可以为,所述满充电容量修正部,当设存储在所述容量存储部中的修正前的满充电容量值为FCC0、所述第I蓄电比率为Ra、所述第2蓄电比率为Rb、所述差值累计值为Qd时,获取满足下述式(2)的第I电量QF,且获取满足下述式(3)的第2电量QS,并且,当Ra < Rb且QF < QS时,基于下述式⑷计算所述新的满充电容量值FCCN,当Ra < Rb且QF > QS时,基于下述式(5)计算所述新的满充电容量值FCCN,当Ra > Rb且QF < QS时,基于下述式(5)计算所述新的满充电容量值FCCN,当Ra > Rb且QF > QS时,基于下述式 [0245] Further, may also be the full charge capacity correction unit, when the capacity of the storage unit in front of the full charge capacity correction value storage FCC0 provided, the first power storage I ratio Ra, the ratio of the second power storage Rb, when the integrated value of the difference Qd, I acquired satisfies the first charge QF by the following formula (2), and obtain the second charge QS satisfying the following formula (3), and, when Ra <Rb and QF <when ​​QS, the new full charge capacity value is calculated based on the following formula FCCN ⑷, when Ra <Rb and QF> QS, based on the calculation by the following formula (5) full charge capacity of the new value FCCN, when Ra> Rb and QF <QS, based on the calculation of the following formula (5) new full charge capacity value FCCN, when Ra> Rb and QF> QS, based on the following formula

(4)计算所述新的满充电容量值FCCN, (4) calculating the full charge capacity value of the new FCCN,

[0246] QF = FCCOXRa+Qd ......(2) [0246] QF = FCCOXRa + Qd ...... (2)

[0247] QS = FCCOXRb ......(3) [0247] QS = FCCOXRb ...... (3)

[0248] FCCN = FCCO- {| QS-QF X (I/ | Rb-Ra |)} ......(4) [0248] FCCN = FCCO- {| QS-QF X (I / | Rb-Ra |)} ...... (4)

[0249] FCCN = FCCO+{IQS-QF| X (I/IRb-Ra|)} ......(5)。 [0249] FCCN = FCCO + {IQS-QF | X (I / IRb-Ra |)} ...... (5).

[0250] 根据该结构,虽然在满充电容量值FCCN的计算过程中使用修正前的满充电容量值FCC0,但是最终满充电容量值FCCO的影响被消除,能够得到与使用式(I)计算满充电容量值FCCN时同样的结果。 [0250] According to this structure, although FCC0 using the full charge capacity value before correction in the calculation process the full charge capacity value FCCN in, but affects the final full charge capacity value FCCO is eliminated can be calculated using the formula (I) Full the same results charge capacity value FCCN.

[0251] 另外,较为理想的是,所述满充电容量修正部,当所述第I推定部推定出所述第I蓄电比率Ra时,将所述累计部的累计值更新为所述满充电容量值FCCO与所述第I蓄电比率Ra的乘积值,并通过让该累计部以后的累计是针对该更新后的乘积值继续进行,将由所述第2推定部推定出所述第2蓄电比率Rb时的所述累计部的累计值作为所述第I电量QF来获取。 [0251] Further, it is preferable that the full charge capacity correction unit, when the first I estimating section estimates the ratio of the first power storage I Ra, updating the cumulative value of the accumulation portion full to FCCO charge capacity value of the first power storage I ratio Ra value of the product, and is continued for the updated value of the product by allowing the accumulation unit after the accumulated, estimated by the second portion of the second estimated the accumulated value accumulated in the power storage unit when the ratio Rb as the second charge QF I acquired.

[0252] 当第I推定部推定出第I蓄电比率Ra时,满充电容量修正部将累计部的累计值更新为满充电容量值FCCO与第I蓄电比率Ra的乘积,对该更新后的乘积继续进行该累计部的以后的累计。 [0252] When the first I estimating section estimates the first power storage ratio Ra I, the full charge capacity correction section portion integral value is updated to the full charge capacity value of the first FCCO ratio Ra I product storage, the update integrated product continues after the integrated portion. 据此,累计部的累计值直接作为满足式(2)的第I电量QF。 Accordingly, the integral value is directly used as a first section I charge QF satisfies the formula (2). 因此,不进行式 Therefore, not style

(2)的运算处理就得到第I电量QF,其结果,能够简化运算处理。 (2) calculation process I of charge QF is obtained, as a result, the arithmetic processing can be simplified.

[0253] 另外,较为理想的是,所述蓄电比率中存在所述二次电池的端子电压相对于所述蓄电比率的变化而变化的第I范围、以及相对于所述蓄电比率的变化的所述二次电池的端子电压的变化小于所述第I范围的第2范围,将属于所述第I范围的蓄电比率中选择的值设定为所述基准值。 [0253] Further, it is preferable that the presence of the storage range of the ratio of the terminal voltage of the secondary battery I varies relative to variation of the power storage ratio, and the ratio with respect to the storage change of terminal voltage of the secondary battery is less than a change in the range of I second range, the ratio of said first power storage belonging to I range selected value is set as the reference value.

[0254] 根据该结构,在属于相对于蓄电比率的变化的端子电压的的变化大于第2范围的第I范围的蓄电比率之中选择出的值被设定为基准比率推定部所使用的基准值。 [0254] According to this structure, belonging to the selected value with respect to the power storage ratio among I, the range of variation of the terminal voltage is larger than the variation range of the power storage ratio is set as the second reference ratio estimation unit used reference value. 由此,在端子电压相对于蓄电比率的变化而大幅变化的区域中,由于基于端子电压获取的蓄电比率与基准值一致,因此基准条件的判定精度提高。 Accordingly, with respect to a change in the terminal voltage ratio changes greatly storage region, since the same terminal voltage acquired based on the ratio of the reference value storage, thus improving the accuracy of the determination reference condition. 而且,基准比率推定部在满足基准条件时,推定二次电池的蓄电比率为基准值,因此,如果基准条件的判定精度提高,则基准比率推定部的蓄电比率的推定精度提高,进而满充电容量值的修正精度提高。 Further, when the reference ratio estimating unit satisfies a reference condition, the ratio of the secondary battery estimated power storage as a reference value, and therefore, the determination accuracy is improved if the reference conditions, the reference ratio estimation accuracy is improved estimation of the ratio of the power storage unit, and thus full charge capacity value correction accuracy is improved.

[0255] 另外,较为理想的是,所述二次电池为锂离子二次电池,所述基准值被设定为10%以下的值。 [0255] Further, it is preferable that the secondary battery is a lithium ion secondary battery, the reference value is set to a value of 10% or less.

[0256] 在锂离子二次电池中SOC为10%以下的区域相当于第I范围。 [0256] In the lithium ion secondary battery SOC is 10% or less of the region corresponding to the first range I. 因此,如果将基准值设定为10%以下的值,则能够提高满充电容量值的修正精度。 Therefore, if the reference value is set to a value of 10% or less, it is possible to improve the correction accuracy of the full charge capacity value.

[0257] 另外,较为理想的是,还包括:电流检测部,检测流经所述二次电池的电流的电流值; [0257] Further, it is preferable, further comprising: a current detection unit for detecting a current value of a current flowing through the secondary battery;

[0258] 电压检测部,检测所述二次电池的端子电压;温度检测部,检测所述二次电池的温度;以及表存储部,存储查找表,该查找表使所述二次电池的蓄电比率、流经所述二次电池的电流值以及所述二次电池的温度与该二次电池的端子电压相对应,其中,所述电压换算比率获取部,根据存储在所述表存储部中的查找表,获取与所述电压检测部检测出的端子电压、所述电流检测部检测出的电流值以及所述温度检测部检测出的温度相对应的蓄电比率。 [0258] the terminal voltage detecting unit, detecting the secondary battery; a temperature detecting unit for detecting a temperature of the secondary battery; and a table storage unit for storing a lookup table, the lookup table so that the storage of the secondary battery power ratio, the current flowing through the terminal voltage of the temperature value of the secondary battery and the secondary battery of the secondary battery with the corresponding, wherein the voltage conversion ratio acquiring unit, according to the table storage unit stores lookup table, acquires a terminal voltage detected by the voltage detecting unit, the current detecting unit and the current value detected by said temperature detecting section detects a temperature corresponding to the power storage ratio.

[0259] 根据该结构,由于二次电池的蓄电比率和与该蓄电比率具有相关关系的端子电压值、电流值以及温度通过查找表相对应,因此,电压换算比率获取部能够使用电压检测部检测的端子电压、电流检测部检测的电流值、以及温度检测部检测的温度,在降低流经二次电池的电流值和温度的影响的情况下能够容易地获取二次电池的蓄电比率。 [0259] According to this configuration, since the ratio of the secondary storage battery and the terminal voltage value having a storage ratio correlation between the current value and the corresponding temperature by a look-up table, and therefore, the voltage conversion ratio can be acquired using the voltage detection unit a terminal voltage detecting section, the current value detected by the current detecting section, and a temperature detecting unit detecting temperature, without being affected by reduction in flowing through the secondary battery current and temperature can be easily acquired storage rate of the secondary battery .

[0260] 另外,本发明所涉及的充电系统,包括:上述满充电容量修正电路;以及充电部,通过对所述二次电池施加该二次电池的满充电电压而进行充电,其中,所述满充电检测部,当在所述充电部的充电过程中流经该二次电池的电流小于预先设定的判定阈值时,判定为该二次电池处于满充电。 [0260] Further, a charging system according to the present invention, comprising: the above-described full charge capacity correction circuit; and a charging unit to charge by the full charge voltage of the secondary battery is applied to the secondary battery, wherein said full charge detecting unit, when the current flowing through the secondary battery during the charging process of the charging portion is less than a predetermined determination threshold, it is determined that the secondary battery is fully charged.

[0261] 根据该结构,当充电部的充电过程中流经该二次电池的电流小于预先设定的判定阈值时,即满足二次电池的充电结束条件时,判定该二次电池达到满充电。 When [0261] According to this structure, when the charging process of the charging current portion flowing through the secondary battery is less than the preset threshold value is determined, i.e., the secondary battery charging end condition is satisfied, it is determined that the secondary battery is fully charged. 因此,满充电检测部能够高精度地检测出二次电池达到满充电的情况。 Therefore, the full charge detecting unit can accurately detect the secondary battery reaches full charge.

[0262] 另外,本发明所涉及的电池组件,包括:上述满充电容量修正电路、以及所述二次电池。 [0262] Further, the present invention relates to a battery pack, comprising: the above-described full charge capacity correction circuit, and the secondary battery.

[0263] 根据该结构,在具备二次电池的电池组件中,能够增大满充电容量的修正机会,并且与专利文献I所记载的方法相比能够提高满充电容量的修正精度。 [0263] According to this structure, the battery pack including a secondary battery, the correction can be increased opportunities for the full charge capacity, as compared with the method described in Patent Document I it is possible to improve the correction accuracy of the full charge capacity.

[0264] 另外,本发明所涉及的满充电容量修正方法,包括:累计工序,通过累计流经二次电池的电流的电流值而计算累计值;第I推定工序,当满足作为能够推定蓄电比率的条件的可推定条件时,将所述二次电池的蓄电比率推定为第I蓄电比率,其中,所述蓄电比率为蓄积于所述二次电池中的蓄电电量相对于该二次电池的实际的满充电容量的比率;第2推定工序,在所述第I推定工序推定所述第I蓄电比率之后,监视是否满足作为能够推定所述蓄电比率的条件的可推定条件,当满足该可推定条件时,将此时的所述二次电池的蓄电比率推定为第2蓄电比率;满充电容量修正工序,基于差值累计值、以及所述第I蓄电比率和所述第2蓄电比率之差与I的比率,推定所述二次电池的满充电容量值,并将该推定出的满充电容量值作为新的满充电容量值而修正该满充电容量 [0264] Further, the full charge capacity correction method according to the present invention, comprising: a summation step, by calculating the cumulative value of the current flowing in the secondary battery integrated value; a first estimating step I, as can be satisfied when the estimated power storage the conditions may be estimated when a ratio, the ratio of the secondary storage battery is estimated as the ratio of the first power storage I, wherein the ratio is stored in the storage of the secondary battery with respect to the stored electricity quantity ratio of the actual full charge capacity of the secondary battery; a second estimating step, after estimating the I-I of the power storage ratio estimating step of monitoring whether the condition of the power storage can be estimated as the ratio may be estimated condition is satisfied when the presumed conditions, the ratio of the storage case of the secondary battery estimated as the ratio of the second power storage; full charge capacity correction step, based on the difference integrated value, and said second power storage I ratio and the ratio of the difference between the second power storage and I ratio, the estimated value of the full charge capacity of the secondary battery, and the estimated full charge capacity value as a new full charge capacity value of the full charge correction capacity 值,其中,该差值累计值为在所述第I推定工序推定所述第I蓄电比率起至在所述第2推定工序推定所述第2蓄电比率为止的期间,通过所述累计工序累计出的累计值;以及开路比率推定工序,将开路电压条件作为所述可推定条件,当满足该开路电压条件时,基于所述二次电池的端子电压推定所述二次电池的蓄电比率,其中,所述开路电压条件以当流经所述二次电池的电流小于用于判定该二次电池的端子电压是否为开路电压而预先设定的开路判定值为条件,其中,将所述第I推定工序和所述第2推定工序中的至少一个工序设定为所述开路比率推定工序。 Value, wherein the difference in the integrated value I of the first estimating step of estimating power storage I ratio until said second estimating step of estimating the period until the ratio of the second power storage by the accumulated an integrated value integrated step; and a ratio of the estimated open circuit step, the open-circuit voltage condition as the condition may be estimated, when the open-circuit voltage condition is satisfied, based on the terminal voltage of the secondary battery of the secondary battery estimated storage ratio, wherein, when the open-circuit voltage condition to a current flowing through the secondary battery is less than the terminal voltage for determining whether or not the open-circuit voltage of the secondary cell is previously set in the open condition is determined, wherein, the said first estimating step I and the at least one step is set to the open ratio estimating step of estimating the second step.

[0265] 根据该结构,与上述满充电修正电路同样地能够增大满充电容量的修正机会,并且与专利文献I所记载的方法相比能够提高满充电容量的修正精度。 [0265] According to this structure, as in the same manner as the full charge correction circuit can be increased opportunities for the correction of the full charge capacity, as compared with the method described in Patent Document I it is possible to improve the correction accuracy of the full charge capacity.

[0266] 这种结构的满充电容量修正电路、充电系统、电池组件、以及满充电容量修正方法能够增大满充电容量的修正机会,并且与专利文献I所记载的方法相比能够提高满充电容量的计算精度。 [0266] This structure of the full charge capacity correction circuit, a charging system, the battery pack, and a method of correcting the full charge capacity can be increased opportunities for the correction of the full charge capacity, as compared with the method described in Patent Document I full charge can be improved capacity calculation accuracy.

[0267] 此外,在具体实施方式中描述的具体实施方式或实施例只是为了明确本发明的技术内容,不应仅限定于这样的具体例而进行狭义解释,在本发明的主旨与权利要求的范围内,能够进行各种变更而实施。 [0267] Furthermore, the particular embodiments or examples described in the detailed embodiment merely to clarify the technical content of the invention should not be limited only to such embodiments and concrete examples be narrowly interpreted in the spirit of the invention as claimed in claims within the scope of, and various modifications can be implemented.

[0268] 产业上的可利用性 [0268] INDUSTRIAL APPLICABILITY

[0269] 本发明所涉及的满充电容量修正电路、充电系统、电池组件以及满充电容量修正方法能够适用于便携式个人计算机或数码相机、摄像机、移动电话等电子设备、电动汽车或混合动力汽车等车辆、混合动力电梯、组合有太阳能电池或发电装置和二次电池的电源系统、不间断电源装置等电池搭载装置、系统中。 [0269] The full charge capacity correction circuit according to the present invention, a charging system, the battery pack and the full charge capacity correction method applicable to portable personal computers, digital cameras, camcorders, mobile phones and other electronic devices, electric vehicles, hybrid vehicles vehicle, a hybrid elevator, combined with a solar cell or power generating device and a secondary battery power supply, an uninterruptible power supply battery-mounted device, etc., systems.

Claims (15)

  1. 1. 一种满充电容量修正电路,其特征在于包括: 累计部,通过累计流经二次电池的电流的电流值而计算累计值; 容量存储部,存储表示所述二次电池的满充电容量的满充电容量值; 第I推定部,当满足作为能够推定蓄电比率的条件的可推定条件时,将所述二次电池的蓄电比率推定为第I蓄电比率,其中,所述蓄电比率为蓄积于所述二次电池中的蓄电电量相对于该二次电池的实际的满充电容量的比率; 第2推定部,在由所述第I推定部推定所述第I蓄电比率之后,监视是否满足作为能够推定所述蓄电比率的条件的可推定条件,当满足该可推定条件时,将此时的所述二次电池的蓄电比率推定为第2蓄电比率; 满充电容量修正部,基于差值累计值以及所述第I蓄电比率和所述第2蓄电比率之差与I的比率,推定所述二次电池的满充电容量值,通过将该推定出的满 A full charge capacity correction circuit, comprising: an integrating unit, the integrated value calculated by the current value of the current flowing in the secondary battery is integrated; full charge capacity capacity storage unit, the secondary battery stores a full charge capacity value; a first estimating section I, when the condition can be estimated as the ratio of the power storage conditions may be estimated power storage ratio of the secondary battery is estimated as the ratio of the first power storage I, wherein the reservoir power ratio is stored in the secondary battery of the power storage amount with respect to the ratio of the actual full charge capacity of the secondary battery; second estimation unit, by the first estimation unit estimates I I of the power storage after ratio, as a condition of the power storage ratio can be estimated may be estimated condition monitoring is satisfied, when satisfying the condition can be estimated, the estimated power storage ratio of the secondary battery at this time is the ratio of the second power storage; full charge capacity correction unit based on the difference between the integrated value and the ratio of the difference between I and I power storage ratio of the second power storage ratio, the estimated value of full charge capacity of the secondary battery by estimating the a full 电容量值作为新的满充电容量值存储于所述容量存储部来修正满充电容量值,其中,所述差值累计值为在所述第I推定部推定所述第I蓄电比率起至所述第2推定部推定所述第2蓄电比率为止的期间由所述累计部累计的累计值; 开路比率推定部,将开路电压条件作为所述可推定条件,当满足该开路电压条件时,基于所述二次电池的端子电压推定所述二次电池的蓄电比率,其中,所述开路电压条件以当流经所述二次电池的电流小于用于判定该二次电池的端子电压是否为开路电压而预先设定的开路判定值为条件;以及修正控制部,将所述第I推定部和所述第2推定部中的至少一个设定为所述开路比率推定部。 Capacitance value as the new value of the full charge capacity stored in the mass storage unit corrects the full charge capacity value, wherein said estimation unit estimates the difference between the integrated value I of the first power storage until the ratio I the second estimating unit estimates the second period until the ratio of the storage of the integral value of the integrating unit; open ratio estimation unit, an open circuit voltage condition for the estimation of said condition, the open-circuit voltage when the condition is satisfied , the terminal voltage of the secondary battery based on the estimated ratio of the secondary storage battery, wherein, when the open-circuit voltage condition to a current flowing through the secondary battery is less than the terminal voltage for determining the secondary battery whether the open-circuit voltage and the open-circuit determination value preset condition; and correction control unit, at least one of the open ratio is set to the estimation of the first section I and the second estimation section estimating portion.
  2. 2.根据权利要求I所述的满充电容量修正电路,其特征在于还包括: 满充电检测部,检测所述二次电池达到满充电;以及满充电比率推定部,使用以所述满充电检测部检测出所述二次电池的满充电为条件的满充电条件作为所述可推定条件,当满足该满充电条件时,推定为所述二次电池的蓄电比率为1,其中, 所述修正控制部,将所述开路比率推定部设定为所述第I推定部和所述第2推定部的其中之一推定部,并将所述满充电比率推定部设定为另一推定部。 The full charge capacity of the correction circuit as claimed in claim I, characterized by further comprising: a full charge detecting unit detecting full charge of the secondary battery reaches; and the full-charge ratio estimation unit used in detecting the full charge section detects the full charge of the secondary battery is fully charged condition as a condition of the condition may be estimated, when the full charge condition is satisfied, a ratio of the estimated power storage is a secondary battery, wherein said correction control section, the open ratio is set to the first estimating portion estimating section I and the second estimating portion estimating wherein one portion, and the full charge rate estimating section estimating unit is set to another .
  3. 3.根据权利要求I所述的满充电容量修正电路,其特征在于还包括: 电压换算比率获取部,基于所述二次电池的端子电压,获取所述二次电池的蓄电比率;以及基准比率推定部,使用所述电压换算比率获取部获取的蓄电比率达到预先设定的基准值的基准条件作为所述可推定条件,当满足该基准条件时,推定为所述二次电池的蓄电比率为所述基准值,其中, 所述修正控制部,将所述开路比率推定部设定为所述第I推定部和所述第2推定部的其中之一推定部,并将所述基准比率推定部设定为另一推定部。 The full charge capacity of the correction circuit as claimed in claim I, characterized by further comprising: a voltage conversion ratio acquiring unit, based on the terminal voltage of the secondary battery, obtaining a ratio of the storage of the secondary battery; and a reference ratio estimation unit, using the voltage acquisition unit acquires the conversion rate of the power storage condition ratio reaches a preset reference value as the reference condition may be estimated, when the reference condition is satisfied, estimating the storage of the secondary battery power ratio as the reference value, wherein the correction control section, the rate estimation unit is set to open the first one I wherein estimating portion estimating portion and said second estimating portion, and the reference ratio estimating unit estimating unit is set to another.
  4. 4.根据权利要求I所述的满充电容量修正电路,其特征在于还包括: 满充电检测部,检测所述二次电池达到满充电; 满充电比率推定部,使用以所述满充电检测部检测出所述二次电池的满充电为条件的满充电条件作为所述可推定条件,当满足该满充电条件时,推定为所述二次电池的蓄电比率为I; 电压换算比率获取部,基于所述二次电池的端子电压,获取所述二次电池的蓄电比率;以及基准比率推定部,使用所述电压换算比率获取部获取的蓄电比率达到预先设定的基准值的基准条件作为所述可推定条件,当满足该基准条件时,推定为所述二次电池的蓄电比率为所述基准值,其中, 所述修正控制部,当满足所述开路电压条件、所述满充电条件以及所述基准条件中的任一个时,将使用以该满足的条件为所述可推定条件的推定部设定为所述第I推定部,当将 4. The full charge capacity correction circuit according to claim I, characterized by further comprising: a full charge detecting unit detecting full charge of the secondary battery reaches; full charge ratio estimation unit used in detecting the full charge unit detecting that the secondary battery is fully charged to the full charge condition as a condition of said condition estimation, when the full charge condition is met, estimated as the ratio of the secondary storage battery is I; voltage conversion rate acquisition portion , based on the terminal voltage of the secondary battery, obtaining a ratio of the storage of the secondary battery; and a reference standard ratio estimation unit, using the voltage acquisition unit acquires the conversion rate of the power storage ratio reaches a predetermined reference value Examples of the conditions may be estimated condition, when the reference condition is satisfied, a ratio of the estimated power storage of the secondary battery as the reference value, wherein the correction control section, when the open-circuit voltage condition satisfied, the full-charge condition and the reference condition according to any one time, will be used to satisfy the condition estimating unit for estimating said condition I set as the first estimation unit, when the 所述开路比率推定部设定为该第I推定部时,将该开路比率推定部、所述满充电比率推定部以及所述基准比率推定部中的任一个推定部设定为所述第2推定部,当将所述满充电比率推定部和所述基准比率推定部中的任一个推定部设定为该第I推定部时,将所述开路比率推定部设定为所述第2推定部。 The open ratio of the first set as the estimation unit estimating section I, the open ratio estimating section, the full charge rate estimating section, and any portion of the reference ratio estimating unit estimating a second set of the estimating section, when the full charge rate estimating section and the reference ratio estimating section according to any one of the first set as the estimation unit estimating section I, the open ratio estimating section estimating the second set unit.
  5. 5.根据权利要求I至4中任一项所述的满充电容量修正电路,其特征在于: 所述修正控制部,当由所述第2推定部推定出所述第2蓄电比率,且由所述满充电容量修正部使新的满充电容量值存储在所述容量存储部中时,将被设定为该第2推定部的推定部重新设定为所述第I推定部,并通过将该推定出的第2蓄电比率设定为所述第I蓄电比率,将该新的第I蓄电比率作为被推定值来进行新的所述第2推定部的设定。 I according to claim full charge capacity correction circuit as claimed in claims 4, characterized in that: said correction control section, when estimated by the second estimating portion a ratio of the second storage, and the full charge capacity by the correction unit so that the new value of the full charge capacity is stored in the mass storage unit, the estimation section is estimating the second portion is reset to the first set as the I estimating section, and estimated by the ratio of the second set as the first power storage storage I ratio, to the second set of the new estimation portion I of the new estimated value as the ratio of power storage.
  6. 6.根据权利要求I至5中任一项所述的满充电容量修正电路,其特征在于: 所述满充电容量修正部,通过将从所述第I蓄电比率减去所述第2蓄电比率而得到的差值的倒数与所述差值累计值相乘来计算所述新的满充电容量值。 I according to claim full charge capacity correction circuit as claimed in any of claims 5, wherein: the full charge capacity correction unit, from the second I by subtracting the ratio of the second power storage accumulator the reciprocal ratio of the difference between the electrical difference obtained by multiplying the integrated value of the calculated new full charge capacity value.
  7. 7.根据权利要求6所述的满充电容量修正电路,其特征在于: 所述满充电容量修正部,当设所述第I蓄电比率为Ra、所述第2蓄电比率为Rb、所述差值累计值为Qd时,基于下述式(I)计算所述新的满充电容量值FCCN, 满充电容量值FCCN = QdX I/(Rb-Ra) ......(I)。 7. The full charge capacity correction circuit according to claim 6, wherein: the full charge capacity correction unit, when the provided ratio of the power storage I Ra, the ratio of the second power storage Rb, the when the difference between said integrated value Qd, is calculated based on the following formula (I) of the new full charge capacity value FCCN, the full charge capacity value FCCN = QdX I / (Rb-Ra) ...... (I) .
  8. 8.根据权利要求I至5中任一项所述的满充电容量修正电路,其特征在于: 所述满充电容量修正部,当设存储在所述容量存储部中的修正前的满充电容量值为FCCO、所述第I蓄电比率为Ra、所述第2蓄电比率为Rb、所述差值累计值为Qd时,获取满足下述式⑵的第I电量QF,且获取满足下述式(3)的第2电量QS,并且,当Ra < Rb且QF< QS时,基于下述式⑷计算所述新的满充电容量值FCCN,当Ra < Rb且QF > QS时,基于下述式(5)计算所述新的满充电容量值FCCN,当Ra > Rb且QF < QS时,基于下述式(5)计算所述新的满充电容量值FCCN,当Ra > Rb且QF > QS时,基于下述式(4)计算所述新的满充电容量值FCCN, QF = F(XOXRa+Qd ......(2) QS = FCXOXRb ......(3) FCCN = FCCO-{I QS-QF X (I/|Rb-Ra|)} ......(4) FCCN = FCCO+{I QS-QF| X (I/|Rb-Ra|)} ......(5)。 I according to claim full charge capacity correction circuit as claimed in any of claims 5, wherein: the full charge capacity correction unit, when the full charge capacity is provided before correction stored in the mass storage unit of FCCO the value is, the first power storage I ratio Ra, the ratio of the second power storage Rb, when the integrated value of the difference Qd, obtaining satisfying the following formula I, QF ⑵ power, and satisfies the acquisition said formula (3) in the second charge QS, and, when Ra <Rb and QF <QS, the calculated new full charge capacity value based on the following formula FCCN ⑷, when Ra <Rb and QF> QS, based on by the following formula (5) calculating the full charge capacity value of the new FCCN, when Ra> Rb and QF <QS, based on the calculation by the following formula (5) of the new full charge capacity value FCCN, when Ra> Rb and QF> when QS, based on the calculation of the following formula (4) new full charge capacity value FCCN, QF = F (XOXRa + Qd ...... (2) QS = FCXOXRb ...... (3 ) FCCN = FCCO- {I QS-QF X (I / | Rb-Ra |)} ...... (4) FCCN = FCCO + {I QS-QF | X (I / | Rb-Ra |)} ...... (5).
  9. 9.根据权利要求8所述的满充电容量修正电路,其特征在于: 所述满充电容量修正部,当所述第I推定部推定出所述第I蓄电比率Ra时,将所述累计部的累计值更新为所述满充电容量值FCCO与所述第I蓄电比率Ra的乘积值,并通过让该累计部以后的累计是针对该更新后的乘积值继续进行,将由所述第2推定部推定出所述第2蓄电比率Rb时的所述累计部的累计值作为所述第I电量QF来获取。 9. The full charge capacity correction circuit according to claim 8, wherein: the full charge capacity correction portion, when the estimation unit estimates the first I I of the first power storage ratio Ra, the accumulated accumulated value updating unit to the full charge capacity value to the first I FCCO storage ratio Ra value of the product, and is continued for the updated value of the product by allowing the later portion cumulative total, by the first estimating unit 2 estimates an accumulated value of the accumulated portion of the second storage when the ratio Rb as the second charge QF I acquired.
  10. 10.根据权利要求3或4所述的满充电容量修正电路,其特征在于: 所述蓄电比率中存在所述二次电池的端子电压相对于所述蓄电比率的变化而变化的第I范围、以及相对于所述蓄电比率的变化的所述二次电池的端子电压的变化小于所述第I范围的第2范围, 将属于所述第I范围的蓄电比率中选择的值设定为所述基准值。 10. The full charge capacity correction circuit according to claim 3 or claim 4, wherein: said first storage I ratio in the presence of the terminal voltage of the secondary battery with respect to the change in the power storage ratio varies range, and the value is set with respect to the change of the power storage ratio of the change in the terminal voltage of the secondary storage battery is less than the ratio of the second range of the range of I, belonging to the range of the selected I as the reference value.
  11. 11.根据权利要求10所述的满充电容量修正电路,其特征在于: 所述二次电池为锂离子二次电池, 所述基准值被设定为10%以下的值。 11. The full charge capacity correction circuit according to claim 10, wherein: said secondary battery is a lithium ion secondary battery, the reference value is set to a value of 10% or less.
  12. 12.根据权利要求3或4所述的满充电容量修正电路,其特征在于还包括: 电流检测部,检测流经所述二次电池的电流的电流值; 电压检测部,检测所述二次电池的端子电压; 温度检测部,检测所述二次电池的温度;以及表存储部,存储查找表,该查找表使所述二次电池的蓄电比率、流经所述二次电池的电流值以及所述二次电池的温度与该二次电池的端子电压相对应,其中, 所述电压换算比率获取部,根据存储在所述表存储部中的查找表,获取与所述电压检测部检测出的端子电压、所述电流检测部检测出的电流值以及所述温度检测部检测出的温度相对应的蓄电比率。 12. The full charge capacity correction circuit according to claim 3 or claim 4, characterized by further comprising: current value of the current detecting portion detects flowing through the secondary battery; voltage detecting section, detecting the secondary the terminal voltage of the battery; a temperature detecting unit for detecting a temperature of the secondary battery; and a table storage unit for storing a lookup table, the lookup table of the secondary battery of the power storage ratio, the current flowing through the secondary battery the terminal voltage of the secondary battery and the temperature of the secondary battery with a corresponding, wherein the voltage conversion ratio acquiring unit, a lookup table stored in the table storage unit, the voltage detecting unit acquires terminal voltage detected current value detected by the current detecting section and the temperature detecting section detects a temperature corresponding to the power storage ratio.
  13. 13. —种充电系统,其特征在于包括: 如权利要求2或4所述的满充电容量修正电路;以及充电部,通过对所述二次电池施加该二次电池的满充电电压而进行充电,其中, 所述满充电检测部,当在所述充电部的充电过程中流经该二次电池的电流小于预先设定的判定阈值时,判定为该二次电池处于满充电。 13. - species charging system, characterized by comprising: a full charge capacity correction circuit of claim 2 or as claimed in claim 4; and a charging unit, by applying a full charge voltage of the secondary battery while the secondary battery is charged wherein said full charge detecting unit, when the current flowing through the secondary battery during the charging process of the charging portion is less than a predetermined determination threshold, it is determined that the secondary battery is fully charged.
  14. 14. 一种电池组件,其特征在于包括: 如权利要求I至12中任一项所述的满充电容量修正电路;以及所述二次电池。 14. A battery pack, comprising: I as claimed in claim correction circuit to the full charge capacity of any one of claims 12; and the secondary battery.
  15. 15. 一种满充电容量修正方法,其特征在于包括以下工序: 累计工序,通过累计流经二次电池的电流的电流值而计算累计值; 第I推定工序,当满足作为能够推定蓄电比率的条件的可推定条件时,将所述二次电池的蓄电比率推定为第I蓄电比率,其中,所述蓄电比率为蓄积于所述二次电池中的蓄电电量相对于该二次电池的实际的满充电容量的比率; 第2推定工序,在所述第I推定工序推定所述第I蓄电比率之后,监视是否满足作为能够推定所述蓄电比率的条件的可推定条件,当满足该可推定条件时,将此时的所述二次电池的蓄电比率推定为第2蓄电比率; 满充电容量修正工序,基于差值累计值、以及所述第I蓄电比率和所述第2蓄电比率之差与I的比率,推定所述二次电池的满充电容量值,并将该推定出的满充电容量值作为新的满充电容量值而修正该满充电 A full charge capacity correction method, comprising the steps of: integrating step, the integrated value calculated by the current value of the current flowing in the secondary battery accumulated; a first estimating step I, as can be satisfied when the ratio of the estimated power storage when the condition is presumed conditions, the storage battery is estimated as the ratio of the secondary storage I ratio, wherein the ratio is stored in the storage of the secondary battery in the power storage amount with respect to the two ratio of the actual full charge capacity of the secondary battery; a second estimating step, after estimating the I-I of the power storage ratio estimating step of monitoring whether the condition can be estimated as a ratio of the storage conditions may be estimated when satisfying the condition can be estimated, the ratio of the storage case of the secondary battery estimated as the ratio of the second power storage; full charge capacity correction step, based on the difference integrated value, and said second power storage ratio I and the ratio of the difference between the second power storage I ratio, the estimated value of full charge capacity of the secondary battery, and the estimated full charge capacity value as a new full charge capacity value of the full charge correction 量值,其中,该差值累计值为在所述第I推定工序推定所述第I蓄电比率起至在所述第2推定工序推定所述第2蓄电比率为止的期间,通过所述累计工序累计出的累计值;以及开路比率推定工序,将开路电压条件作为所述可推定条件,当满足该开路电压条件时,基于所述二次电池的端子电压推定所述二次电池的蓄电比率,其中,所述开路电压条件以当流经所述二次电池的电流小于用于判定该二次电池的端子电压是否为开路电压而预先设定的开路判定值为条件,其中, 将所述第I推定工序和所述第2推定工序中的至少一个工序设定为所述开路比率推定工序。 Magnitude, wherein the difference in the integrated value of the second period until the estimated power storage ratio in the second step of estimating the first estimation step of estimating the first I I ratio until power storage, by the a cumulative total integrated value step; and a ratio of the estimated open circuit step, the open-circuit voltage condition as the condition may be estimated, when the open-circuit voltage condition is satisfied, based on the terminal voltage of the secondary battery of the secondary battery estimated accumulator power ratio, wherein, when the open-circuit voltage condition to a current flowing through the secondary battery is less than the terminal voltage for determining whether or not the open-circuit voltage of the secondary cell is previously set in the open condition is determined, wherein I estimated the at least one of the first step of the second step of estimating and the step of setting the open ratio estimating step.
CN 201080062474 2010-04-30 2010-04-30 Full-charge capacity correction circuit, charging system, battery pack, and full-charge capacity correction method CN102741699B (en)

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