550393松修正丨 年 Λ θ 4 > 案號 90131604 年 月 曰 修正 五'發明說明（1) [發明所屬之技術領域] 本發明係屬一種具電流補償機能之殘電量測試方法， 尤指一種藉由量測電流推算出電池之損失電壓，再以損失 電壓來作補償修正參考電壓之高低，或補償修正量測電池 電壓之尚低，以改進因變化電流造成之判斷誤差電壓所 者。 [先前技術] 舊有之電壓殘電量測試方法，係以電池電壓判斷放電 = 了用之殘電容量’但實際之電池模型特性（如 為内阻玛=，舲具有内部電阻（以下簡稱内阻），電池因 i變化7如第不同時’產生極大電池端電壓 電壓池=電流越大時’因内阻產生之 電流越小時，因内===越小；反之’輸出 可用電壓越大，所以ί ϋ電壓知失越小’則電池的實際 電壓方式測出正確流的變化範圍大時，無法以 ’之電池殘餘電容量。 [内容] 依電池之實際輸出端電壓 V〇Ut'Ix R —〜 〜一一 一 V〇Pen .電池無負 戰時之開路電壓（1 = 0 ) I ·電池輸出電流550393 loose correction 丨 year Λ θ 4 > Case No. 90131604 Rev. 5 'Description of invention (1) [Technical field to which the invention belongs] The present invention is a residual power test method with current compensation function, especially a borrowing method Calculate the loss voltage of the battery from the measured current, and then use the loss voltage to compensate the height of the reference voltage, or to compensate for the low voltage of the measured battery voltage to improve the judgment error voltage caused by the varying current. [Previous technology] The old voltage residual capacity test method is based on the battery voltage to judge the discharge = the residual capacity used, but the actual battery model characteristics (such as internal resistance =), 舲 has internal resistance (hereinafter referred to as internal resistance ), The battery due to the change of i is not the same as the first time when the maximum battery terminal voltage voltage pool = when the current is greater, the smaller the current generated by the internal resistance, the smaller the internal ===; otherwise, the larger the available output voltage, Therefore, when the voltage loss is smaller, the battery's actual voltage can be used to measure the correct current. When the range of the correct current is large, the battery's residual capacity cannot be used. [Content] According to the battery's actual output terminal voltage V〇Ut'Ix R — ~ ～ 一一 一 〇〇Pen. Open circuit voltage (1 = 0) when the battery has no negative war. I · Battery output current
:電池内阻: Battery internal resistance
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依電池之殘電容量可由開路電壓之大小測得，當電池 以標準之固定電流iQ放電時，電池之電壓變化很穩定（如 第二圖所示），亦可由電壓值得知其電池之殘電容量。而 變化之之總輸出電流I可視為由定電流1〇及變化電流丨所组 成，以數式表示如下： FThe residual capacity of the battery can be measured by the open circuit voltage. When the battery is discharged at a standard fixed current iQ, the battery voltage changes are very stable (as shown in the second figure). It is also worth knowing the residual capacity of the battery from the voltage. capacity. The changed total output current I can be regarded as composed of a constant current 10 and a changed current 丨, which is expressed by the following formula: F
Vout = Vopen-（ I0+ Ir ) R 二（Vopen-I0R ) — irR 當電池以定電流放電（Ir = 0)(如第二圖所示），電 池之端電壓變化很穩定，可由電壓v〇ut測知其殘電容量， 此時Vout = Vopen-IGR可當標準之參考電壓。 备負載電流產生Ir變動（安培）時，量測電流推算出 電池之損失電壓，再以損失電壓來作補償修正參考電壓之 高低，或補償修正量測電池電壓之高低，以改進因丨、生 之判斷誤差電壓（IrR ) 。 r &风 依此一電流補償方式，可由類比迴路或數位迴路 償設計，亦可用非線性方式作補償設計，藉以提高 補 池殘電容量之準確度，以判斷放電深度及剩餘可Z 際電 容量者。 、用之殘電 [實施方式] 法 依本發明係屬一種具電流補償機能之殘電量剛上 首先，乃藉由量測電流，以推算出電池之損失式方 接著，以損失電壓，來作補償修正參考電壓之高低電壓； 償修正量測電池電壓之高低；最後，改進因變化電二或補 之判斷誤差電壓。而依本發明之電流補償方戎二机造成Vout = Vopen- (I0 + Ir) R two (Vopen-I0R) — irR When the battery is discharged at a constant current (Ir = 0) (as shown in the second figure), the voltage at the battery terminal is very stable and can be measured by the voltage v〇ut Knowing its residual capacity, Vout = Vopen-IGR can be used as standard reference voltage. When the standby load current has an Ir variation (Amp), the measured current is used to calculate the battery's loss voltage, and then the loss voltage is used to compensate for the height of the reference voltage, or to compensate for the height of the battery voltage. Judgment error voltage (IrR). r & Wind is based on this current compensation method, which can be compensated by analog or digital circuits. It can also be designed in a non-linear way to improve the accuracy of the residual power capacity of the pool to determine the depth of discharge and the remaining available power. Capacity person. Residual power used [Embodiment] The method according to the present invention belongs to a residual power with a current compensation function. First, the current loss is measured by measuring the current to calculate the battery loss formula. Then, the loss voltage is used to make Compensate the high and low voltage of the reference voltage; Compensate and measure the high and low voltage of the battery voltage; Finally, improve the judgment error voltage due to the change of power or compensation. According to the current compensation of Fang Rong 2
第6頁 ------' 可由類比 550393 案號 90131604 嗜正 ___補充 發明說明（3) 五 迴路或數位迴路作補償設計，亦可用非線性方式作補償設 計；如此，除藉以提昇實際電池殘電容量之準確度，並用 以判斷放電深度及剩餘可用之殘電容量。 依本發明之方法，可將電池之輸出電流大小，經由電 阻R1轉換成電壓訊號，此訊號大小與内阻造成損失電壓成 正比，再將標準參考判斷電壓¥減去此補償電壓（屬減法 之法），以得到補償後之實際判斷電壓；此實際判斷電壓 可隨電流之大小修正判斷電壓值，使UD顯示帛（液晶或 其他方式）正確顯示電池之殘電容量（如第三圖所示）。 依本發明之方法，可將電池之輸出電流大小，經由電 阻R1轉換成電壓訊號，此訊號與輸出電流成正比，亦與内 阻造成之損失電壓成正比；冑測得之電池端電壓加上此補 償電壓（屬加法之法），即可得補償後之實際判斷電壓 (此補償後之實際判斷電壓將隨輸出電流大小作修正）， 再以標準參考判斷電壓作比較，來精確驅動LED顯示燈 (液晶或其他方式）’使LED正確的顯示電池之殘電容量 (如第四圖所示）。 依本發明之方法，可將電流大小之訊號輸入電流補償 處理迴路’對量測之電池端電壓作電流補償後，與標準參 考判斷電壓比較，並控制LED顯示燈（液晶或其他方式） 之党滅以顯示電池之殘電容量，電池於各殘電容量階段具 有不同之内阻值，各皆段採各自不同之補償比例可提高精 準度（如第五圖所示）。 依本發明之方法，為降低成本簡化迴路設計，可共用 組電流補償處理迴路，補償後之電壓與各標準參考判斷Page 6 --- 'Analogous to 550393, case number 90131604, addictive ___ supplementary description of the invention (3) five-circuit or digital circuit for compensation design, or non-linear way for compensation design; so, in addition to The accuracy of the actual battery residual capacity is used to determine the depth of discharge and the remaining residual capacity. According to the method of the present invention, the output current of the battery can be converted into a voltage signal through the resistor R1. This signal is proportional to the loss voltage caused by the internal resistance, and then the standard reference judgment voltage ¥ is subtracted from this compensation voltage (which is a subtraction method). Method) to obtain the actual judgment voltage after compensation; this actual judgment voltage can be adjusted according to the magnitude of the current, so that the UD display (liquid crystal or other methods) correctly displays the residual capacity of the battery (as shown in the third figure) ). According to the method of the present invention, the output current of the battery can be converted into a voltage signal through the resistor R1. This signal is proportional to the output current and also proportional to the loss voltage caused by the internal resistance. 胄 The measured battery terminal voltage plus This compensation voltage (which is the method of addition) can get the actual judgment voltage after compensation (the actual judgment voltage after compensation will be modified with the output current), and then compare with the standard reference judgment voltage to accurately drive the LED display The lamp (liquid crystal or other means) 'causes the LED to correctly display the residual capacity of the battery (as shown in the fourth figure). According to the method of the present invention, a signal with a current magnitude can be input to a current compensation processing circuit to perform current compensation on the measured battery terminal voltage, compare it with a standard reference judgment voltage, and control the LED display lamp (liquid crystal or other methods). It is displayed to show the residual capacity of the battery. The battery has different internal resistance values at each residual capacity stage, and each segment adopts a different compensation ratio to improve accuracy (as shown in the fifth figure). According to the method of the present invention, in order to reduce the cost and simplify the circuit design, a group of current compensation processing circuits can be shared, and the compensated voltage and each standard reference judgment
第7頁 550393 92· 4，'修正丨 遍90131604 年Λ 五、發明說明（4) jf：_____η 日 羞正 :ί ΐ Ϊ二判斷殘電容量並驅動LED動作；雖精準度稍低 1一 j降低成本（如第六圖所示）。 依本α發明之方法，可將電池電壓及輸出電流之訊號經 A/D轉換器，轉換成數位訊號後，輸入數位電流補償處理 器 度 由處理器作更精密之非線性或線性補償，可提高精準 並簡化硬體迴路（如第七圖所示）。 請參閱第八圖係本發明方法實施例之動作流程示意 圖，其中： 開始（Start )，當本發明產品（以下簡稱產品）接 上電池（DC I η )後，並有負載做放電用，產品會抓電池 電壓，並依設定之電壓基準作燈號亮滅之檢測〔如圖示產 品設計有五顆燈（LED)做為殘電量顯示用〕； 接著，當負載放電時，產品會檢測電池電壓下降至設 定之電壓時，將由原本亮幾個燈，而逐一滅掉亮燈； 又，當電池電壓降至設定之放電截止電壓點，最後一 顆燈即會閃爍，表示電池不再作工，須進行充電方能使 用； 完成（End)。Page 7 550393 92 · 4, 'Amendment 丨 Across 90131604 Λ V. Description of the invention (4) jf: _____ η Sunshine: ΐ Ϊ Ϊ Judging the residual capacity and driving the LED action; although the accuracy is slightly lower 1 ~ j Reduce costs (as shown in Figure 6). According to the method of the α invention, the signals of battery voltage and output current can be converted into digital signals by A / D converter, and the input digital current compensation is processed by the processor for more precise nonlinear or linear compensation. Improve accuracy and simplify hardware circuits (as shown in Figure 7). Please refer to FIG. 8 for a schematic flow chart of the method embodiment of the present invention, wherein: Start, when the product of the present invention (hereinafter referred to as the product) is connected to the battery (DC I η), and a load is used for discharging, the product It will grasp the battery voltage and detect the light on and off according to the set voltage reference [if the product is designed with five lights (LED) as the remaining power display]; then, when the load is discharged, the product will detect the battery When the voltage drops to the set voltage, several lights will be turned on, and the lights will be turned off one by one. Also, when the battery voltage drops to the set discharge cut-off voltage point, the last light will flash, indicating that the battery is no longer working It must be charged before it can be used; End.
550393 L，r..,上Jt 號 Θ0131604_年月日 修正_ 圖式簡單說明 [圖式說明] 第一圖係習用電壓殘電量測試方法示意圖。 第二圖係習用測試方法之電池端電壓變化示意圖。 第三圖係本發明正確顯示電池殘電容量之方法圖之一。 第四圖係本發明正確顯示電池殘電容量之方法圖之二。 第五圖係本發明正確顯示電池殘電容量之方法圖之三。 第六圖係本發明之實施例圖之一。 第七圖係本發明之實施例圖之二。 第八圖係本發明方法實施例之動作流程示意圖。550393 L, r .., Jt number Θ0131604_Year Month Day Amendment _ Brief description of the diagram [Schematic diagram] The first diagram is a schematic diagram of the conventional method for measuring residual voltage of voltage. The second figure is a schematic diagram of the battery terminal voltage change in the conventional test method. The third figure is one of the methods for correctly displaying the residual capacity of the battery according to the present invention. The fourth diagram is the second diagram of the method for correctly displaying the residual capacity of the battery according to the present invention. The fifth diagram is the third diagram of the method for correctly displaying the residual capacity of the battery according to the present invention. The sixth diagram is one of the embodiments of the present invention. The seventh diagram is the second diagram of the embodiment of the present invention. The eighth diagram is a schematic flow chart of the method embodiment of the present invention.