JPH0554916A - Determination of residual battery energy - Google Patents
Determination of residual battery energyInfo
- Publication number
- JPH0554916A JPH0554916A JP3259558A JP25955891A JPH0554916A JP H0554916 A JPH0554916 A JP H0554916A JP 3259558 A JP3259558 A JP 3259558A JP 25955891 A JP25955891 A JP 25955891A JP H0554916 A JPH0554916 A JP H0554916A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- battery energy
- state
- voltage
- change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、セル式電話移動機等で
使用する電池エネルギー残量判定方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery energy remaining amount determining method used in a cell phone mobile unit or the like.
【0002】[0002]
【従来の技術】従来、この種の電池エネルギー残量の判
定方法は、負荷電流状態に対応した係数をあらかじめ定
めておき、この係数を用いて測定電圧値の補正を行い、
この結果をもとに電池エネルギー残量を判定するように
したものであった。2. Description of the Related Art Conventionally, this kind of battery energy remaining amount determination method has previously determined a coefficient corresponding to the load current state, and uses this coefficient to correct the measured voltage value.
The battery energy remaining amount is determined based on this result.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の電池エネルギー残量判定方法では、判定電圧の補正
のためには、電池の種類と負荷電流状態に対し固定され
た係数を用いるため、複数の種類の電池を併用する場合
には、正確な電池エネルギー残量の判定ができないとい
う問題点があった。さらに、上記のような場合には正確
な電圧の補正ができないため、補正後の電圧値を用いて
電池の充放電状態を判定することができないという問題
点があった。本発明はこのような従来の問題点を解決す
るものであり、複数の種類の電池を使用する場合に、電
池の充放電状態を考慮した上での、正確な電池エネルギ
ー残量を判定することができる電池エネルギー残量判定
方法を提供することを目的とするものである。However, in the above-mentioned conventional battery energy remaining amount determination method, a fixed coefficient is used for the type of battery and the load current state to correct the determination voltage. When using different types of batteries together, there is a problem that it is not possible to accurately determine the remaining battery energy. Further, in the above case, since the voltage cannot be accurately corrected, there is a problem that the charged / discharged state of the battery cannot be determined using the corrected voltage value. The present invention solves such a conventional problem, and when using a plurality of types of batteries, it is possible to determine an accurate battery energy remaining amount in consideration of charge / discharge states of the batteries. It is an object of the present invention to provide a battery energy remaining amount determination method capable of performing the above.
【0004】[0004]
【課題を解決するための手段】本発明は上記目的を達成
するために、まず負荷電流状態の変化を検出し、負荷電
流状態の変化前の電池電圧値と負荷電流状態の変化後の
電池電圧値との差を求めることにより、電圧値補正のた
めの係数とする。なおこの係数は負荷電流状態の変化時
には、逐次相対的に算出する。その後、上記の如く相対
的に求めた係数を用いて測定電圧値の補正を行うもので
ある。In order to achieve the above object, the present invention first detects a change in the load current state, and then detects the battery voltage value before the change in the load current state and the battery voltage value after the change in the load current state. By obtaining the difference from the value, it is used as a coefficient for voltage value correction. It should be noted that this coefficient is sequentially and relatively calculated when the load current state changes. After that, the measured voltage value is corrected using the coefficient relatively obtained as described above.
【0005】[0005]
【作用】したがって本発明によれば次のような作用を有
する。 (1) 使用する電池の種類に特有な充放電特性にとらわ
れることがないため、複数の電池を併用する場合も、同
一のアルゴリズムを用いて電池エネルギー残量の判定を
行うことができ利便性が高い。 (2) 測定電圧に対し、電池の温度変化による充放電時
の電圧変化を逐次補正する必要がないため、実質的に電
池電圧の温度補正が容易となる。 (3) 電池の種類にかかわらず、電池電圧より充電状態
から放電状態への切り換え、放電状態から充電状態への
切り換えを判定することができるため、充放電状態を考
慮した上での電池エネルギー残量の判定が可能となる。Therefore, according to the present invention, the following effects are provided. (1) Since the charge / discharge characteristics peculiar to the type of battery used are not bound, the same algorithm can be used to determine the remaining battery energy even when using multiple batteries together, which is convenient. high. (2) Since it is not necessary to sequentially correct the voltage change during charging / discharging due to the temperature change of the battery with respect to the measured voltage, temperature correction of the battery voltage is substantially facilitated. (3) Regardless of the type of battery, it is possible to judge the switching from the charging state to the discharging state and the switching from the discharging state to the charging state based on the battery voltage. It is possible to determine the amount.
【0006】[0006]
【実施例】図1は本発明の一実施例における電池エネル
ギー残量判定方法の構成を示したものである。図1にお
いて、1はセル式電話移動機であって、表示部2,操作
部3,A/D変換器4および電話移動機制御部5を備え
ている。6は電話移動機駆動用の電池、7は電池の充電
器である。図2は上記電話移動機制御部5の処理フロー
を示したものであり、図3,図4は本発明の動作を説明
するための図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of a battery energy remaining amount determining method according to an embodiment of the present invention. In FIG. 1, reference numeral 1 is a cell phone mobile unit, which includes a display unit 2, an operation unit 3, an A / D converter 4, and a mobile phone unit control unit 5. Reference numeral 6 is a battery for driving a mobile phone, and 7 is a battery charger. FIG. 2 shows a processing flow of the telephone mobile unit control section 5, and FIGS. 3 and 4 are diagrams for explaining the operation of the present invention.
【0007】次に上記実施例の動作を、図2を中心に図
1,図3,図4を参照して説明する。まず電話移動機1
の内部で決定される負荷電流状態の変化の有/無を検出
する(S1)。次に電池6の電圧値をA/D変換器4を用
いてディジタル値として求める(S2)。上記S1の処理に
おいて負荷電流状態の変化ありと判定された場合は、電
圧値の補正係数を求める処理を行い(S3)、また上記S1
において負荷電流状態の変化なしと判定された場合は、
求めた補正係数を用いてS2の処理により求められた測
定電圧を補正する処理を行う(S4)。上記S3およびS4
の処理により求められた補正後のデータを用いて、電池
が充電状態にあるか放電状態にあるかを判定する処理
(S5)および電池エネルギー残量を判定する処理(S6)を
行う。Next, the operation of the above embodiment will be described with reference to FIG. 1, FIG. 3, FIG. First, mobile phone 1
The presence / absence of a change in the load current state determined inside is detected (S 1 ). Next, the voltage value of the battery 6 is obtained as a digital value using the A / D converter 4 (S 2 ). If it is determined in the process of S 1 that the load current state has changed, a process for obtaining a correction coefficient of the voltage value is performed (S 3 ), and the process of S 1 is performed.
If it is determined that the load current state has not changed in
A process of correcting the measured voltage obtained by the process of S 2 using the obtained correction coefficient is performed (S 4 ). Above S 3 and S 4
A process for determining whether the battery is in a charging state or a discharging state using the corrected data obtained by the process
(S 5 ) and a process for determining the remaining battery energy (S 6 ) are performed.
【0008】図3により、電圧値補正係数の算出処理
(S3)と測定電圧を補正する処理(S4)の詳細について説
明する。図3は時間の経過に伴う電池電圧の測定(S2)
処理に寄る測定電圧の変化の一例を示したものである。
図3の時間t1,t4での測定電圧の変化は電話移動機1
の負荷電流状態の変化に起因するものあり、時間t2,
t3での測定電圧の変化は電池エネルギーの消費に起因
するものである。ここで、負荷電流状態1(図3)の電圧
を基準の状態と仮定すると、時刻ta,tbでの補正係数
ΔVa,ΔVbおよび補正後の電圧Va,Vbはそれぞれ次
のようになる。時刻taにおいては、The calculation process of the voltage value correction coefficient is shown in FIG.
Details of (S 3 ) and the process of correcting the measured voltage (S 4 ) will be described. Figure 3 shows the battery voltage measurement over time (S 2 ).
It is an example of a change in the measured voltage depending on the processing.
The change in the measured voltage at times t 1 and t 4 in FIG.
There shall be attributed to the change in the load current state, time t 2,
change in the measured voltage at t 3 is due to the consumption of the battery energy. Here, when the voltage of the load current state 1 (FIG. 3) assuming that the state of the reference, the time t a, the correction coefficient [Delta] V a at t b, [Delta] V b and the corrected voltage V a, V b are the following respective Like At time t a,
【0009】[0009]
【数1】 [Equation 1]
【0010】[0010]
【数2】 [Equation 2]
【0011】また時刻tbにおいてはFurther, at time t b
【0012】[0012]
【数3】 [Equation 3]
【0013】[0013]
【数4】 [Equation 4]
【0014】つまり補正係数は負荷電流変化検出処理
(S1)により、負荷電流変化有りと判定された場合の変
化前の測定電圧値と変化後の測定電圧値との差および変
化以前の補正係数により定めるものとする(なお本処理
は電圧値補正係数算出処理(S3)において行われる)。ま
た測定電圧補正処理(S4)においては、電圧値補正係数
算出処理(S3)で求められた補正係数と測定電圧値の和
を求めることにより、電池電圧の補正を行う。つまり、
補正後の電池電圧値は基準となる電圧値(基準となる負
荷電流状態で最後に測定された電圧値)と電池エネルギ
ーの消費により低下した電圧値との差を示すものであ
る。That is, the correction coefficient is the load current change detection processing.
It is determined by the difference between the measured voltage value before the change and the measured voltage value after the change and the correction coefficient before the change when it is determined by (S 1 ) that there is a change in the load current. correction coefficient calculating process (S 3) is carried out in). In the measurement voltage correction processing (S 4), by finding the sum of the correction coefficient and the measured voltage value determined by the voltage value correction coefficient calculation process (S 3), to correct the battery voltage. That is,
The corrected battery voltage value indicates the difference between the reference voltage value (the last measured voltage value in the reference load current state) and the voltage value reduced by the consumption of battery energy.
【0015】次に図4を用いて図2の電池の充放電状態
の判定処理(S5)について説明する。図4は上記S5の処
理により求められた補正後の電池電圧の充放電状態変化
時の関係を示している。充放電状態の判定処理(S5)に
おいては、一定時間(ΔtJ)内に補正後の電池電圧が一
定量(ΔVJ)以上増加した場合に放電状態から充電状態
に変化したものと判定し、また同様に、一定時間(Δ
tH)内に補正後の電池電圧が一定量(ΔVH)以下に減少
した場合に充電状態から放電状態にしたものと判定す
る。したがって時間t1+ΔtJにおいて、V2−V4(>
ΔVJ)増加していることが求められ、以降充電中と判定
される。また時間t2+ΔtHにおいてはV1−V3(>Δ
VH)減少していることが求められ、以降放電中と判定さ
れることになる。図2の電池エネルギー残量判定処理
(S6)は、セル式電話移動機のユーザによる操作により
表示部2に電池エネルギーの残量を示すために表示する
レベルを定める処理である。つまり、電池の充放電状態
判定処理(S5)で求めた充電・放電状態により個別に定
めた電圧値n個の閾値と負荷電流変化検出処理(S1)か
ら、測定電圧補正処理(S4)で求められた補正後の電池
電圧値の関係よりn+1段階の表示するレベルを定める
処理である。Next, referring to FIG. 4, the process of determining the charge / discharge state of the battery of FIG. 2 (S 5 ) will be described. FIG. 4 shows the relationship of the corrected battery voltage obtained by the process of S 5 when the charging / discharging state changes. In the charging / discharging state determination process (S 5 ), it is determined that the discharging state has changed to the charging state when the corrected battery voltage increases by a certain amount (ΔV J ) or more within a certain time (Δt J ). , And likewise for a fixed time (Δ
When the corrected battery voltage decreases to a certain amount (ΔV H ) or less within t H ), it is determined that the charging state is changed to the discharging state. Therefore, at time t 1 + Δt J , V 2 −V 4 (>
ΔV J ) is required to increase, and it is determined that charging is in progress thereafter. Further, at time t 2 + Δt H , V 1 −V 3 (> Δ
V H ) is required to be decreased, and thereafter it is determined that discharging is in progress. Battery energy remaining amount determination process of FIG.
(S 6 ) is a process of determining the level to be displayed on the display unit 2 to indicate the remaining amount of battery energy by the operation of the user of the cell phone mobile unit. That is, from the threshold value of n voltage values individually determined by the charging / discharging state obtained in the charging / discharging state determination process (S 5 ) of the battery and the load current change detection process (S 1 ), the measured voltage correction process (S 4 ) Is a process of determining the level to be displayed in n + 1 stages from the relationship of the corrected battery voltage value obtained in ().
【0016】[0016]
【発明の効果】本発明は上記実施例より明らかなよう
に、以下の効果を有する。 (1) 電圧補正のための係数として固定値を用いる必要
がないため、電池の種類の差異によらず正確な電池エネ
ルギー残量を判定することができる。EFFECTS OF THE INVENTION The present invention has the following effects, as is apparent from the above embodiments. (1) Since it is not necessary to use a fixed value as a coefficient for voltage correction, an accurate battery energy remaining amount can be determined regardless of the difference in battery type.
【0017】(2) 電池の充放電状態を容易に検出する
ことができ、その結果を用いて充放電状態における正確
な電池エネルギーの判定を行うことができる。(2) The charge / discharge state of the battery can be easily detected, and the result can be used to accurately determine the battery energy in the charge / discharge state.
【図1】本発明の一実施例における電池エネルギー残量
判定方法の構成図である。FIG. 1 is a configuration diagram of a battery energy remaining amount determination method according to an embodiment of the present invention.
【図2】本発明の実施例における電話移動機制御部の処
理フローチャートである。FIG. 2 is a processing flowchart of a telephone mobile unit control unit according to the embodiment of the present invention.
【図3】本発明の動作を説明する図である。FIG. 3 is a diagram for explaining the operation of the present invention.
【図4】本発明の動作を説明する図である。FIG. 4 is a diagram for explaining the operation of the present invention.
1…セル式電話移動機、 2…表示部、 3…操作部、
4…A/D変換器、5…電話移動機制御部、 6…電
池、 7…充電器。DESCRIPTION OF SYMBOLS 1 ... Cellular telephone mobile device, 2 ... Display unit, 3 ... Operation unit,
4 ... A / D converter, 5 ... Telephone mobile unit control unit, 6 ... Battery, 7 ... Charger.
Claims (2)
の変化を検出し、該検出結果を用いることを特徴とする
電池エネルギー残量判定方法。1. A method for determining the remaining battery energy, which comprises detecting a change in a load current state and a change in a battery voltage state and using the detection result.
り電池の充電・放電状態を判定し、該判定結果をもとに
充電・放電状態を考慮の上電池エネルギーの残量を推定
することを特徴とする請求項1記載の電池エネルギー残
量判定方法。2. A method for determining the charge / discharge state of a battery by detecting a change in the battery voltage state, and estimating the remaining amount of battery energy in consideration of the charge / discharge state based on the determination result. The battery energy remaining amount determination method according to claim 1, which is characterized in that.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3259558A JPH0554916A (en) | 1991-08-23 | 1991-08-23 | Determination of residual battery energy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3259558A JPH0554916A (en) | 1991-08-23 | 1991-08-23 | Determination of residual battery energy |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0554916A true JPH0554916A (en) | 1993-03-05 |
Family
ID=17335793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3259558A Pending JPH0554916A (en) | 1991-08-23 | 1991-08-23 | Determination of residual battery energy |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0554916A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5717312A (en) * | 1996-02-23 | 1998-02-10 | Uniden Corporation | Charging device providing a stable display of the residual charge in a battery |
JP2014149165A (en) * | 2013-01-31 | 2014-08-21 | Shindengen Electric Mfg Co Ltd | Dc power supply apparatus, degradation determination method of storage battery in dc power supply apparatus, storage battery degradation determination apparatus |
-
1991
- 1991-08-23 JP JP3259558A patent/JPH0554916A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5717312A (en) * | 1996-02-23 | 1998-02-10 | Uniden Corporation | Charging device providing a stable display of the residual charge in a battery |
JP2014149165A (en) * | 2013-01-31 | 2014-08-21 | Shindengen Electric Mfg Co Ltd | Dc power supply apparatus, degradation determination method of storage battery in dc power supply apparatus, storage battery degradation determination apparatus |
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