WO2016009687A1 - 組電池システム、および組電池の制御基板 - Google Patents
組電池システム、および組電池の制御基板 Download PDFInfo
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- WO2016009687A1 WO2016009687A1 PCT/JP2015/061351 JP2015061351W WO2016009687A1 WO 2016009687 A1 WO2016009687 A1 WO 2016009687A1 JP 2015061351 W JP2015061351 W JP 2015061351W WO 2016009687 A1 WO2016009687 A1 WO 2016009687A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- Embodiments of the present invention relate to an assembled battery system and an assembled battery control board.
- an assembled battery in which a plurality of batteries are connected is known. Knowing the temperature of each battery constituting the assembled battery is important in deriving the state of each battery. However, it is difficult to directly and individually measure the temperature of each battery constituting the assembled battery. In addition, in the conventional technology, the temperature of each battery may not be appropriately derived based on the indirectly measured temperature.
- the problem to be solved by the present invention is to provide an assembled battery system capable of deriving the temperature of each battery constituting the assembled battery, and a control board of the assembled battery.
- the assembled battery system of the embodiment includes an assembled battery, a temperature measuring unit, and a monitoring unit.
- a temperature measuring unit measures the temperature of the connection part which connects between the electrodes of each battery contained in the said assembled battery.
- the monitoring unit derives the temperature of each battery based on the temperature measured by the temperature measuring unit.
- the disassembled perspective view which shows the whole structure of the assembled battery system 1 which concerns on 1st Embodiment.
- FIG. Sectional drawing which shows an example of the positional relationship of the bus-bar 20, the screw
- FIG. The block diagram which shows a part of component provided in the control board 30 which concerns on 3rd Embodiment.
- FIG. 1 is an exploded perspective view showing the overall configuration of the assembled battery system 1 according to the first embodiment.
- FIG. 2 is a diagram showing one battery 10.
- FIG. 3 is a top view of the assembled battery 5 (only the positive electrode 7p and the negative electrode 7m of the assembled battery 5 as a whole are shown as a bird's eye view).
- the assembled battery system 1 includes, for example, an assembled battery 5 including batteries (cells) 10-1L, 10-1R to 10-12L, 10-12R, and a control board 30.
- batteries 10-1L and 10-1R, batteries 10-2L and 10-2R, etc. which have the same number after the hyphen and have different character parts in L and R, are connected in parallel. Used.
- the batteries are not distinguished, they are simply referred to as the battery 10.
- the battery 10 is, for example, preferably a lithium ion battery using manganese on the positive electrode side and lithium titanate on the negative electrode side.
- the battery 10 has a plurality of stacked structures in which a positive electrode and a negative electrode face each other with a separator interposed therebetween, and as shown in FIG. 2, a positive terminal P connected to the plurality of positive electrodes and a negative electrode connected to the plurality of negative electrodes A terminal N and a gas discharge valve are provided on the housing surface.
- the battery 10 may be a lithium ion battery using a lithium metal oxide for the positive electrode and a carbon material such as graphite for the negative electrode, or may be a battery of another aspect such as a lead storage battery.
- the batteries 10 are connected by a bus bar (connection part).
- the bus bar 20-0 connects the positive electrode 7p (positive voltage extraction part) as the assembled battery 5 as a whole and the positive electrodes of the batteries 10-1L and 10-1R.
- Bus bar 20-1 connects negative electrodes of batteries 10-1L and 10-1R and positive electrodes of batteries 10-2L and 10-2R.
- Bus bar 20-2 connects negative electrodes of batteries 10-2L and 10-2R and positive electrodes of batteries 10-3L and 10-3R.
- Bus bar 20-3 connects negative electrodes of batteries 10-3L and 10-3R and positive electrodes of batteries 10-4L and 10-4R.
- Bus bar 20-4 connects negative electrodes of batteries 10-4L and 10-4R and positive electrodes of batteries 10-5L and 10-5R.
- Bus bar 20-5 connects negative electrodes of batteries 10-5L and 10-5R and positive electrodes of batteries 10-6L and 10-6R.
- Bus bar 20-6 connects negative electrodes of batteries 10-6L and 10-6R and positive electrodes of batteries 10-7L and 10-7R.
- the bus bar 20-7 connects the negative electrodes of the batteries 10-7L and 10-7R and the positive electrodes of the batteries 10-8L and 10-8R.
- the bus bar 20-8 connects the negative electrodes of the batteries 10-8L and 10-8R and the positive electrodes of the batteries 10-9L and 10-9R.
- Bus bar 20-9 connects negative electrodes of batteries 10-9L and 10-9R and positive electrodes of batteries 10-10L and 10-10R.
- Bus bar 20-10 connects negative electrodes of batteries 10-10L and 10-10R to positive electrodes of batteries 10-11L and 10-11R.
- Bus bar 20-11 connects negative electrodes of batteries 10-11L and 10-11R and positive electrodes of batteries 10-12L and 10-12R.
- the bus bar 20-12 connects the negative electrodes of the batteries 10-12L and 10-12R to the negative electrode 7m (negative voltage side voltage extraction portion) as the assembled battery 5 as a whole.
- the assembled battery 5 is configured as an assembled battery of 2 parallel 12 series.
- the bus bars are not distinguished, they are simply expressed as the bus bar 20.
- FIG. 4 is a cross-sectional view showing an example of the positional relationship between the bus bar 20, the screw 32, and the temperature sensor 34.
- the temperature sensor 34 measures the temperature transmitted from the bus bar 20 via the screw 32, that is, the temperature that can be regarded as the temperature of the bus bar 20, and outputs the measurement result to the monitoring unit 36. Note that the positional relationship shown in FIG. 4 is merely an example, and the temperature of each bus bar 20 may be measured by another structure.
- the monitoring unit 36 is, for example, a microcomputer. Information on the temperature measured by each temperature sensor 34 is input to the monitoring unit 36. The monitoring unit 36 derives the temperature of each battery 10 based on the temperature measured by each temperature sensor 34.
- FIG. 5 is a simplified diagram of the configuration of the assembled battery system 1.
- the temperature of the positive electrode 7p of the assembled battery 5 is Ttp
- the temperature of the negative electrode 7m is Ttm
- the bus bar 20 Assuming that the temperature of the connected battery 10 is evenly reflected, it is estimated that the following simultaneous equations hold.
- T0 0.5 ⁇ (Ttp + Tc1)
- T1 0.5 ⁇ (Tc1 + Tc2)
- T2 0.5 ⁇ (Tc2 + Tc3)
- T3 0.5 ⁇ (Tc3 + Tc4)
- T4 0.5 ⁇ (Tc4 + Tc5)
- T5 0.5 ⁇ (Tc5 + Tc6)
- T6 0.5 ⁇ (Tc6 + Tc7)
- T7 0.5 ⁇ (Tc7 + Tc8)
- T8 0.5 ⁇ (Tc8 + Tc9)
- T9 0.5 ⁇ (Tc9 + Tc10)
- T10 0.5 ⁇ (Tc10 + Tc11)
- T11 0.5 ⁇ (Tc11 + Tc12)
- T12 0.5 ⁇ (Tc12 + Ttm)
- the simultaneous equations can be expressed by the characteristic determinant of Expression (1).
- the monitoring unit 36 performs the inverse matrix operation of the characteristic determinant represented by the equation (2), so that the temperature Tave of the positive electrode 7p and the negative electrode 7m of the assembled battery 5 is obtained from the temperature Tk measured by the temperature sensor 34-k. Then, the average temperature Tcn of the battery 10-nL and the battery 10-nR is calculated. For example, the monitoring unit 36 inputs, as an operand, the temperature Tk measured by the temperature sensor 34-k with respect to the software information related to the inverse matrix operation prepared in the storage device of the monitoring unit 36 in the form of a function or a table. By doing so, the inverse matrix operation is performed.
- the temperature of each battery 10 can be derived.
- the inverse matrix calculation of the characteristic determinant corresponding to the temperature transfer characteristic of the assembled battery 5 is performed to derive the temperature of each battery 10, so that the calculation process is simplified. And the processing load can be reduced.
- the temperature measurement error (offset error) by the temperature sensor 34 can be canceled by using the characteristic determinant and its inverse matrix calculation.
- the temperature of the bus bar 20-0 is more greatly affected by the temperature of the positive electrode 7p of the assembled battery 5 than the batteries 10-1L and 10-1R.
- each bus bar 20 is greatly affected by the temperature of some of the connected batteries 10 due to the mounting position, size, shape, and the like of each bus bar 20, for example, It is estimated that such simultaneous equations hold.
- the characteristic determinant is expressed by, for example, Expression (4).
- the inverse matrix of the characteristic determinant (4) is expressed by the equation (5).
- the temperature of each battery 10 can be derived as in the first embodiment.
- the temperature of each battery 10 can be appropriately derived. it can.
- FIG. 6 is a configuration diagram illustrating some of the components provided in the control board 30 according to the third embodiment. As shown in the figure, the temperature of the control board 30 is set at an arbitrary place on the control board 30 in addition to the temperature sensors 34-0 to 34-n (n is the number in series) as in the first or second embodiment. A temperature sensor 34-amb to be measured is attached. The temperature sensor 34 -amb measures the temperature of the control board 30 and outputs the measurement result to the monitoring unit 36.
- T0 ⁇ 1 ⁇ 0.5 ⁇ (Ttp + Tc1) + ⁇ 2 ⁇ Tamb
- T1 ⁇ 1 ⁇ 0.5 ⁇ (Tc1 + Tc2) + ⁇ 2 ⁇ Tamb
- Tn-1 ⁇ 1 ⁇ 0.5 ⁇ (Tc (n ⁇ 1) + Tcn) + ⁇ 2 ⁇ Tamb
- Tn ⁇ 1 ⁇ 0.5 ⁇ (Tcn + Ttm) + ⁇ 2 ⁇ Tamb
- the characteristic determinant is expressed by, for example, Expression (6).
- the monitoring unit 36 according to the third embodiment performs, for example, inverse matrix calculation of the characteristic determinant (6) to obtain temperatures Tave and Tcn.
- the influence of the temperature of the control board 30 on each battery 10 is not uniform, but the influence may be different for each battery 10.
- the characteristic determinant is expressed by, for example, Expression (7).
- the inverse matrix in this case is expressed by Expression (8).
- the temperature of each battery 10 can be derived as in the first embodiment. Further, according to the third embodiment, the temperature of each battery 10 is derived by subtracting the influence of the temperature of the control board 30, so that the temperature of each battery 10 can be derived more accurately.
- FIG. 7 is a configuration diagram showing some of the components provided in the control board 30 according to the fourth embodiment.
- the current sensor (current detection unit) 38 is provided at an arbitrary position on the power path connected to the positive electrode 7p or the negative electrode 7m of the assembled battery 5. Note that the current sensor 38 may be provided at a location other than the control board 30.
- the current sensor 38 detects the current value charged and discharged by the assembled battery 5 and outputs the detection result to the monitoring unit 36.
- the characteristic determinant is expressed by, for example, Expression (9).
- the monitoring unit 36 performs, for example, inverse matrix calculation of the characteristic determinant (9) to obtain temperatures Ttave and Tcn.
- the characteristic determinant is expressed by, for example, Expression (10).
- the inverse matrix of the characteristic determinant (10) is expressed by the equation (11).
- the temperature of each battery 10 can be derived as in the first embodiment.
- the temperature of each battery 10 is derived by adding the influence of the current value charged / discharged by the assembled battery 5 on the temperature of each battery 10. The temperature can be derived.
- the temperature of each battery 10 is derived in consideration of the resistance value of the balance resistor for suppressing the voltage variation of the battery 10.
- the balance resistor is provided on the control board 30, for example. Further, it is assumed that the arrangement and the resistance value of the balance resistor are known and stored in the storage device of the monitoring unit 36.
- the characteristic determinant is expressed by, for example, Expression (12).
- the monitoring unit 36 performs, for example, an inverse matrix calculation of the characteristic determinant (12) to obtain the temperatures Tave and Tcn.
- the characteristic determinant is expressed by, for example, Expression (13).
- the inverse matrix of the characteristic determinant (13) is expressed by the equation (14).
- the calculation is performed in proportion to the number of cells to be discharged, assuming that the balance discharge circuit is partially consolidated.
- the influence of the discharge can be examined for each bus bar 20. For example, when the discharge parts are dispersed.
- the characteristic determinant in this case is expressed by, for example, Expression (15).
- the inverse matrix of the characteristic determinant (15) is expressed by the following equation (16).
- the temperature of each battery 10 can be derived as in the first embodiment. Further, according to the fifth embodiment, the temperature of each battery 10 can be derived more accurately because the temperature of each battery 10 is derived by subtracting the effect of the balance resistance.
- Equation (2) An explanation will be given taking the inverse matrix of Equation (2) as an example.
- the temperature rise appears as a temperature rise of the bus bar 20-0.
- the temperatures Tave and Tc1 both rise, but the temperature Tc2 falls, the temperature Tc3 rises, the temperature Tc4 falls, and the temperature Tc5 rises. Except for, the opposite effect appears alternately.
- FIG. 8 is a diagram simply showing the influence of the temperature rise. In the example of FIG. 8, it is assumed that the temperature Ttp of the positive electrode 7p of the assembled battery 5 has increased by 20 degrees.
- the calculation result has a positive influence on the temperature change as shown in FIG. Things and negative effects appear alternately.
- the positive and negative influences do not appear alternately only in the calculation results near the temperature change.
- the monitoring unit 36 extracts the temperatures Ttp and Tc1 at which no difference has occurred between adjacent calculation results, and the positive electrode 7p of the assembled battery 5, the bus bar 20-0, the battery related to them. It is determined that either 10-1L or 10-1R is abnormal.
- the monitoring unit 36 transmits, for example, a signal for causing a display device (not shown) to display a portion that is determined to be abnormal, by wire or wirelessly.
- the monitoring unit 36 may shift to a rough monitoring process by reducing the monitoring granularity.
- the temperature of the assembled battery 5 in which a plurality of batteries 10 are connected in series and the connection portion 20 that connects between the electrodes of each battery 10 included in the assembled battery 5 is measured.
- the temperature sensor 34 and the monitoring unit 36 for deriving the temperature of each battery 10 based on the temperature measured by the temperature sensor 34 the temperature of each battery 10 constituting the assembled battery 5 can be derived. it can.
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Abstract
Description
図1は、第1の実施形態に係る組電池システム1の全体構成を示す分解斜視図である。また、図2は、一つの電池10を示す図である。また、図3は、組電池5の上面図である(組電池5全体としての正極7pおよび負極7mについてのみ鳥瞰図のように示した)。
T0 =0.5×(Ttp+Tc1)
T1 =0.5×(Tc1+Tc2)
T2 =0.5×(Tc2+Tc3)
T3 =0.5×(Tc3+Tc4)
T4 =0.5×(Tc4+Tc5)
T5 =0.5×(Tc5+Tc6)
T6 =0.5×(Tc6+Tc7)
T7 =0.5×(Tc7+Tc8)
T8 =0.5×(Tc8+Tc9)
T9 =0.5×(Tc9+Tc10)
T10=0.5×(Tc10+Tc11)
T11=0.5×(Tc11+Tc12)
T12=0.5×(Tc12+Ttm)
以下、第2の実施形態に係る組電池システム、および組電池の制御基板について説明する。第1の実施形態では、バスバー20が、自身に接続された電池10の温度を均等に反映した温度となるとの仮定の下、式(1)、(2)等に基づく行列の逆行列演算を行って、温度TtaveとTcnを求めるものとしたが、第2の実施形態では、バスバー20が、自身に接続された電池10の温度を均等に反映した温度とならない場合に、その偏りを反映した式に基づく行列の逆行列演算を行って、温度TtaveとTcnを求める。
T0 =0.7×Ttp+0.3×Tc1
T1 =0.6×Tc1+0.4×Tc2
T2 =0.6×Tc2+0.4×Tc3
T3 =0.5×Tc3+0.5×Tc4
T4 =0.4×Tc4+0.6×Tc5
T5 =0.4×Tc5+0.6×Tc6
T6 =0.5×Tc6+0.5×Tc7
T7 =0.6×Tc7+0.4×Tc8
T8 =0.6×Tc8+0.4×Tc9
T9 =0.5×Tc9+0.5×Tc10
T10 =0.4×Tc10+0.6×Tc11
T11 =0.4×Tc11+0.6×Tc12
T12 =0.3×Tc12+0.7×Ttm
以下、第3の実施形態に係る組電池システム、および組電池の制御基板について説明する。第3の実施形態では、基板温度を測定する温度センサを備え、この温度センサによって測定された温度を加味して各電池10の温度を導出する。図6は、第3の実施形態に係る制御基板30に設けられる構成要素の一部を示す構成図である。図示するように、制御基板30には、第1または第2の実施形態と同様の温度センサ34-0~34-n(nは直列数)の他、任意の箇所に制御基板30の温度を測定する温度センサ34-ambが取り付けられる。温度センサ34-ambは、制御基板30の温度を測定し、測定結果を監視部36に出力する。
T1 =α1×0.5×(Tc1+Tc2)+α2×Tamb
‥
Tn-1=α1×0.5×(Tc(n-1)+Tcn)+α2×Tamb
Tn =α1×0.5×(Tcn+Ttm)+α2×Tamb
以下、第4の実施形態に係る組電池システム、および組電池の制御基板について説明する。第4の実施形態では、各バスバー20を流れる電流による想定発熱量を加味して、各電池10の温度を導出する。
T0 =0.5×(Ttp+Tc1)+β0×I2×R
T1 =0.5×(Tc1+Tc2)+β1×I2×R
‥
Tn-1=0.5×(Tc(n-1)+Tcn)+β(n-1)×I2×R
Tn =0.5×(Tcn+Ttm)+βn×I2×R
以下、第5の実施形態に係る組電池システム、および組電池の制御基板について説明する。第5の実施形態では、電池10の電圧のバラつきを抑制するためのバランス抵抗の抵抗値を加味して、各電池10の温度を導出する。バランス抵抗は、例えば、制御基板30上に設けられる。また、バランス抵抗の配置と抵抗値は既知であり、監視部36の記憶装置に記憶されているものとする。
T0 =0.5×(Ttp+Tc1)+γ0
T1 =0.5×(Tc1+Tc2)+γ1
‥
Tn-1=0.5×(Tc(n-1)+Tcn)+γ(n‐1)
Tn =0.5×(Tcn+Ttm)+γn
以下、第6の実施形態に係る組電池システム、および組電池の制御基板について説明する。第6の実施形態では、温度監視対象である組電池5の正極7pおよび負極7m、並びに各電池10のうち、異常が生じた温度監視対象を、互いに隣接する温度監視対象について算出された温度の差に基づいて抽出する。第1~第5の実施形態では、組電池5の正極7pおよび負極7mの温度は同一であるという前提で処理を行ったが、第6の実施形態では、組電池5の正極7pと負極7mのいずれに異常が生じたかを判断することができる。
上記説明した各実施形態の処理は、適宜、組み合わせることができる。例えば、第3の実施形態において、第2の実施形態のように、バスバー20が、自身に接続された電池10の温度を均等に反映した温度とならない場合に対応した演算を行ってもよい。また、第6の実施形態に係る処理は、第1の実施形態だけでなく、第2~第5の実施形態の処理にも適用することができる。
Claims (8)
- 複数の電池が直列に接続された組電池と、
前記組電池に含まれる各電池の電極間を接続する接続部の温度を測定する温度測定部と、
前記温度測定部により測定された温度に基づいて、前記各電池の温度を導出する監視部と、
を備える組電池システム。 - 前記測定部は、更に、前記組電池に含まれる電池と前記組電池の電圧取出し部との間を接続する接続部の温度を測定する、
請求項1記載の組電池システム。 - 前記監視部は、前記各接続部が、それぞれに接続された電池または前記組電池の電圧取出し部の温度を反映する程度に基づく連立方程式を解くことで、前記各電池の温度を導出する、
請求項1または2記載の組電池システム。 - 前記監視部は、前記連立方程式を行列式とした場合の逆行列演算を行うことで、前記各電池の温度を導出する、
請求項3記載の組電池システム。 - 前記温度測定部は、前記組電池に取り付けられる制御基板上に設けられると共に、前記制御基板の温度を更に測定し、
前記監視部は、前記温度測定部により測定される前記制御基板の温度に基づく値を差し引いて、前記各電池の温度を導出する、
請求項1記載の組電池システム。 - 前記組電池が充放電する電流を検出する電流検出部を備え、
前記監視部は、前記電流検出部により検出される電流に、各電池の抵抗値を乗算した値を加算して、前記各電池の温度を導出する、
請求項1記載の組電池システム。 - 前記監視部は、前記各電池の温度を導出した結果のうち、前記組電池において直列に接続され且つ互いに隣接する電池についての結果の差分が小さい箇所を抽出し、前記抽出した箇所に関連する電池に異常が生じたと判定する、
請求項1記載の組電池システム。 - 複数の電池が直列に接続された組電池に取り付けられる組電池の制御基板であって、
前記組電池に含まれる各電池の電極間を接続する接続部の温度を測定する温度測定部と、
前記温度測定部により測定された温度に基づいて、前記各電池の温度を導出する監視部と、
を備える組電池の制御基板。
Priority Applications (4)
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EP15821931.1A EP3171447A4 (en) | 2014-07-18 | 2015-04-13 | Battery pack system and battery pack control board |
CN201580038604.8A CN106663849A (zh) | 2014-07-18 | 2015-04-13 | 电池组系统以及电池组的控制基板 |
US15/326,855 US20170200987A1 (en) | 2014-07-18 | 2015-04-13 | Battery assembly system and control board for battery assembly |
JP2016534297A JPWO2016009687A1 (ja) | 2014-07-18 | 2015-04-13 | 組電池システム、および組電池の制御基板 |
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EP (1) | EP3171447A4 (ja) |
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Cited By (3)
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WO2017187518A1 (ja) * | 2016-04-26 | 2017-11-02 | 株式会社 東芝 | 蓄電池装置 |
JP2022087461A (ja) * | 2020-12-01 | 2022-06-13 | プライムプラネットエナジー&ソリューションズ株式会社 | 推定システム、推定装置、電源装置、および推定方法 |
WO2023120282A1 (ja) * | 2021-12-24 | 2023-06-29 | 株式会社デンソー | 電池監視装置、電池輸送機器、電池監視方法 |
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EP3437794A4 (en) * | 2016-03-28 | 2020-03-25 | Doosan Machine Tools Co., Ltd. | DEVICE AND METHOD FOR THE AUTOMATIC CONVERSION OF COMPENSATION PARAMETERS OF THE THERMAL SHIFTING OF A MACHINE TOOL |
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- 2015-04-13 JP JP2016534297A patent/JPWO2016009687A1/ja active Pending
- 2015-04-13 EP EP15821931.1A patent/EP3171447A4/en not_active Withdrawn
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US20170200987A1 (en) | 2017-07-13 |
EP3171447A1 (en) | 2017-05-24 |
CN106663849A (zh) | 2017-05-10 |
EP3171447A4 (en) | 2018-04-25 |
JPWO2016009687A1 (ja) | 2017-06-01 |
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