201000828 九、發明說明： 【發明所屬之技術領域】 本發明係關於在引擎控制之中，尤其是將燃料泵之步 進（stepping)馬達之控制加以改良之車輛等之引擎控制裝 .【先前技術】 口以往，將用以從車輛之燃料槽送出燃料之燃料泵予以 驅動之馬達，係使用電磁式繼f||(relay)，藉由切換盆通 電之⑽（導通(關斷）來控制。所謂電磁式繼電器係 由可影響電磁作用之磁鐵（magnet)、及藉由該電磁作用使 接點進行機械性接觸分離之開關所構成者。 ，由燃料泵將燃料從燃料槽壓送至壓力燃料配管， 且猎由喷射器Gru.ector)將燃料喷射於引擎汽 ^自料泵之馬達等周邊零件之熱，若燃料^ 騎巾彻嫩·產生氣泡 產^氣泡時，無法加壓燃料而使燃料壓變不 :產：來:喷射器之編亦變得不穩定。為了防ΙΟ 在：Γ以抑制燃料泵之馬達之消耗電流為目的， 之^要求燃料喷射量較少之空轉⑽e)時，抑制 泵之馬達之負载（duty)比，而謀求消耗 …4 如下述之專利文獻1)。 机之減低（參照例 此外小型—輪車等小型車輛 車-計(一關係要求將燃料泵==縮:因 320498 201000828 '而需要用以驅動燃料泵之馬達之小巧（c〇mpact)化。 [專利文獻1]日本特開2000-220548號公報 【發明内容】 [發明欲解決之問題] - 然而，燃料泵之旋轉數或送出量係由馬達之轉穷 • (torque)所決U於此馬達之轉㈣由料馬達之施办 電壓所決定’因此在因引擎起動時之電壓降低時.或電池劣 化等而使馬達之施加電壓較低時，會有馬達之轉矩不足， 而產生對於必要之燃料愿力之加壓變慢之可能。若加壓不 ^而㈣料壓力降低，料有無法㈣㈣量之燃料所產 起動性之惡化、加速性之降低等、車輛之商品性顯著降 身虞、此夕卜纟馬達之施加電壓高出所需時，則馬達本 泡馬達之消耗電流增大而發熱，而會有容易產生氣 ~本發明係有鑑於解決上述之問題而研創者，其目^ 獲得一種引擎控制裝置，可實g φ ^ ' '保馬達之起動性而提升引在電池電壓異常時確 ^ κ ^ 扠开5丨擎之起動性、及藉由降低平常動 Λ ，、、、達之消耗電流而抑制產生氣泡。 [解決問題之方案] 本發明之引擎控制裝置係設士 出;及控燃料槽吸引燃料並加以送 進馬達之施加電璧=:::!，脈衝率所決定之前述步 出量；前述於制單一，由脈衝兔度調變控制來控制燃料送 控制早兀係根據電池之電池電壓值而修正目標 320498 6 201000828 驅動脈衝率，日 I 乂、+、接近此修正之目標驅動脈衝率之方式運 ==衝率，並且根據前述電池之電池㈣值:: 厂㈣衝施加時間之脈衝寬度調變控嶋 r [發明之功效] 、用特引:控刪’以燃料果之馬達而言不須使 燃料泵 ，平當士 （動陡而棱升引擎之起動性、及藉由降低 $之馬達之消耗電流而抑制氣泡產生之效果。 L只施方式】 以下說明本發明之實施例1。 (實施例1) 制 '乡’、、第1圖至第6圖說明本發明實施例1之引擎控 置第1圖係為顯示包括本發明之實施例1之引擎批 制裝置之引擎之系統構成圖.。二 '作在第1圖中’控制單元.1係將用以控制整體引擎之動 1之程式或映成表（map)儲存於記憶體（未圖示）。控制單元 量係設於吸氣側之空氣濾清器（air cleaner)2，用以測 擎及入工氣之溫度之吸氣溫感測器3、設於吸氣管4 , 2从測量節流（throttle)閥5之開度之節流位置感測器 /用以測量節流閥5之下游之吸入空氣壓之吸氣壓感測器 r、、用以測量引擎8之壁面溫度之引擎溫度感測器9、及用 測量曲柄軸（crankshaft)1〇之位置之曲柄角感測器U 之貝矾’來運算適當之燃料喷射時期、燃料喷射量，且將 320498 201000828 驅動信號輪出至屬於燃料喷射裝置之噴射器 另外，在引擎8之排氣側（在第！圖@ 有排氣管12、及消音器T為左側）係結合 厂此外同樣地，控制單幻係從各種感夠器之次… 虽之時序將點火信號輸出至點火線圈14，且貝。_以t 產生火花而使引擎缸内之燃料與吸入空曰人^星基15 藉由引擎8、、去宾Γηι·0+ 、你， ' 此合氧燃燒， W擎8居塞（piston)推出而使曲柄軸仙旋 ，射至引擎8之燃料係藉由.來自控制單幻驅動 戒，使燃料泵21之馬達22驅動，且透過過濟器㈤= 土力，經由壓力燃料配管23供給至噴射器24。 在本發明之實施例j中，係適用步 驢 料泵21之馬n 違作為驅動燃 值，從搭載於車輛之電池25檢測電池電壓. 率之St 21之步進馬達22之目標驅動脈衝 之？正及PWM(脈衝寬度調變)控制負載比之修正。 ，2圖係為顯示本發明實施例】之引擎控制裝置之步 Τβ達之定子與端子之關係圖。將端子几、13及端子14、 氺：移電角度90。相位’並在個別之相内依序切換通電， 二進馬達22即可各以步進角度旋轉+連 於電池25。 u你遷接 第3圖係為顯示本發明實施例」之步進馬達中驅動脈 何；之通電形態(pattern)圖。無論在哪-瞬間，均成為任 相一直通電之2相全步進（full step)通電。如示意性 320498 8 201000828 所示，相當於將經Ρ·控制之驅動脈衝施加於步進馬達Μ 之單位時間之脈衝施加時間（相當於第3圖所示之脈衝施 加時間）’係區分為前半期間（第i個期間）與後半期間（第 2個期間）之2階段。再者，藉由設定各個剛控制負載比 :=制各個期間之電流值。在此，雖係將脈衝施加時間區 :2 ^ $又’惟亦可分割為3區分以上之複數個期間，此 卞月形下，即可進行更細腻之控制。 接者，邊參照圖式邊說明本發明實施例j之 号 =::: = 4圖係為顯示本發明實施例…I擎： 乂進馬達之驅動控制之流程圖。 制單=之=驟100中，㈣單元1係將來自連接於控 W早兀1之吸氣溫感測器3 5 測器7、引擎、、^心^ Q即位置感測益6、吸氣壓感 器之輸出信號讀入。此外U 4各種感測 值Vb讀入。 控制…係將電池25之電池 接著，在步驟101中，栌制罝； 测車輛之肤能n „ 控制早701係從各種感測器檢 記=:::運；車_之燃料喷射量。例如，從 據曲柄i onrs 6所檢測出之節流位置、及根 之關係測信號所計算出之引擎旋轉速度 成表，來運鼻燃料噴射量。 接著，在步驟102中，控制單元 六 驟m所運算之燃料喷射量，來決定^依據在之前之步 料量。此吐出之燃料量係藉由 I果21要吐出之燃 22之驅動脈衝率而變化，因此步動進= 馬達22之目標驅動脈 320498 9 201000828 •衝率係由燃料噴射量所決定。例如 引擎旋轉速度之關係之映成表，來運嘗^有然科噴射量， 燃料噴射量較多時，係以r 斤目掭驅動脈衝率。 來自燃料泵21之燃料吐:旦“ 動步進馬達22而提升 動脈衝率設定為、出置’因此控制單元1係將目標驅 1係將目標驅動脈衝率設定於低頻。里即可’因此控制單元 接者，在步驟103中，和·告I丨置-1 /201000828 IX. Description of the Invention: [Technical Field] The present invention relates to an engine control device for a vehicle or the like that is improved in engine control, particularly, control of a stepping motor of a fuel pump. In the past, a motor that is driven by a fuel pump that sends fuel from a fuel tank of a vehicle is controlled by an electromagnetic relay f||(relay) by switching the pot energization (10) (turning on (off)). The electromagnetic relay is composed of a magnet that can affect the electromagnetic action and a switch that mechanically separates the contact by the electromagnetic action. The fuel pump pumps the fuel from the fuel tank to the pressurized fuel. Piping, and the shovel is sprayed by the Gru.ector) to the heat of the peripheral parts such as the motor of the engine steam pump. If the fuel is tight and the bubble is generated, the fuel cannot be pressurized. Fuel pressure does not change: production: come: the editor of the injector has also become unstable. In order to prevent simmering, in order to suppress the current consumption of the motor of the fuel pump, when the idling (10)e) with a small amount of fuel injection is required, the duty ratio of the motor of the pump is suppressed, and the consumption is sought... 4 as follows Patent Document 1). The reduction of the machine (refer to the small-vehicle such as a small-wheel-wheel vehicle (a relationship requires that the fuel pump == contraction: 320498 201000828') requires a small motor (c〇mpact) for driving the fuel pump. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2000-220548 [Draft of the Invention] [Problem to be Solved by the Invention] - However, the number of rotations or the amount of delivery of the fuel pump is determined by the rotation of the motor. The rotation of the motor (4) is determined by the operating voltage of the material motor. Therefore, when the voltage applied to the motor is lowered due to the voltage drop at the start of the engine, or the battery is degraded, the torque of the motor is insufficient, and If necessary, the pressure of the fuel will slow down. If the pressure is not good, and (4) the pressure of the material is lowered, there is a possibility that the startability of the fuel cannot be deteriorated, the acceleration is lowered, and the commerciality of the vehicle is significantly lowered. When the applied voltage of the motor is higher than necessary, the current consumption of the motor of the motor increases and the heat is generated, and the gas is likely to be generated. The present invention has been developed in view of solving the above problems. Its purpose ^ get a kind of introduction The engine control device can be used to improve the startability of the motor and improve the start-up property of the engine when the battery voltage is abnormal, and reduce the normal movement, and, by The current consumption is suppressed to suppress the generation of air bubbles. [Solution to Problem] The engine control device of the present invention is designed to be installed; and the fuel cell is controlled to attract fuel and is supplied to the motor to be applied to the motor =:::!, determined by the pulse rate. The above-mentioned step output amount; the above-mentioned single system, the pulsed rabbit degree modulation control is used to control the fuel delivery control, and the early warning system is based on the battery voltage value of the battery to correct the target 320498 6 201000828 driving pulse rate, day I 乂, +, close to this correction The target drive pulse rate mode ==rush rate, and according to the battery (four) value of the aforementioned battery:: factory (four) impulse application time pulse width modulation control r [invention effect], with special reference: control delete For the motor of the fuel fruit, there is no need to make the fuel pump, the squadron (the startability of the engine is steep and the engine is lifted, and the effect of the bubble generation is reduced by reducing the current consumption of the motor of the $.) Embodiment 1 of the present invention. Embodiment 1) "Hometown", Figs. 1 to 6 illustrate engine control according to Embodiment 1 of the present invention. Fig. 1 is a system configuration showing an engine including an engine batch device of Embodiment 1 of the present invention. Fig. 2' is shown in Fig. 1 'Control unit.1 is a program or map for controlling the movement of the overall engine in memory (not shown). Control unit quantity system An air cleaner 2 on the suction side, an air temperature sensor 3 for measuring the temperature of the engine and the inlet gas, and a suction valve 4, 2 from the throttle valve 5 a throttling position sensor of the opening degree, an intake air pressure sensor r for measuring the suction air pressure downstream of the throttle valve 5, an engine temperature sensor 9 for measuring the wall surface temperature of the engine 8, and Calculate the appropriate fuel injection period and fuel injection amount by measuring the crank angle of the crank angle sensor U at the position of the crankshaft 1〇, and rotate the 320498 201000828 drive signal to the injector belonging to the fuel injection device. In addition, on the exhaust side of the engine 8 (in the first! Fig. @With exhaust pipe 12 and silencer T on the left side) In addition, the control single phantom is from the various senses... Although the timing outputs the ignition signal to the ignition coil 14, and the bell. _ Produce a spark with t to make the fuel in the engine cylinder and inhale the air ^ ^ ^ 藉 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 The crankshaft is screwed out, and the fuel that is fired to the engine 8 is driven by the motor 22 of the fuel pump 21 by the control of the single magical drive ring, and is supplied through the pressure fuel pipe 23 through the crossover (5) = earth force. To the ejector 24 . In the embodiment j of the present invention, the target driving pulse of the stepping motor 22 of St 21 is detected from the battery 25 mounted on the vehicle. ? Positive and PWM (Pulse Width Modulation) control load ratio correction. 2 is a diagram showing the relationship between the stator and the terminal of the engine control device according to the embodiment of the present invention. The terminals, 13 and terminals 14, 氺: the power transmission angle is 90. The phase ' is switched energized sequentially in the individual phases, and the two-input motor 22 can be rotated at a step angle + connected to the battery 25. u You are relocated. Fig. 3 is a diagram showing the driving pulse in the stepping motor of the embodiment of the present invention; No matter where it is - instantaneously, it becomes a full-phase energization of two phases that are always energized. As shown in the schematic 320498 8 201000828, the pulse application time (corresponding to the pulse application time shown in FIG. 3) corresponding to the application of the drive pulse controlled by the Ρ· control to the stepping motor ' is divided into the first half. Two phases of the period (i-th period) and the second half period (second period). Furthermore, by setting each of the just-controlled load ratios: = the current value of each period. Here, although the pulse application time zone is set to be 2^$, but it can be divided into a plurality of periods of three or more divisions, more fine control can be performed under the shape of the moon. Next, the number of the embodiment j of the present invention will be described with reference to the drawings. =::: = 4 The figure shows a flow chart of the drive control of the motor of the present invention. In the order of the ===100, (4) Unit 1 will be from the temperature sensor connected to the control W1, the engine 7, the heart, the position sensory 6, the suction pressure The output signal of the sensor is read in. In addition, U 4 various sensing values Vb are read in. Control... The battery of the battery 25 is next, in step 101, the enthalpy is measured; the skin energy of the vehicle is measured n „ Control early 701 from the various sensor check =::: transport; the fuel injection amount of the vehicle. For example, the nose fuel injection amount is expressed from the throttle position detected by the crank i onrs 6 and the engine rotation speed calculated by the root relationship measurement signal. Next, in step 102, the control unit is six steps. The fuel injection amount calculated by m is determined according to the amount of the previous step. The amount of fuel discharged is changed by the driving pulse rate of the combustion 22 to be discharged by the fruit 21, so that the stepping motor = the motor 22 Target drive pulse 320498 9 201000828 • The impulse rate is determined by the fuel injection amount. For example, the relationship between the engine rotation speed and the engine is used to calculate the amount of injection, and when the fuel injection amount is large,掭 Drive pulse rate: Fuel ejection from the fuel pump 21: "The stepping motor 22 is set to raise the dynamic pulse rate to be set to "out", so the control unit 1 sets the target drive pulse rate to the low frequency. In the end, the control unit is connected, in step 103, and the 丨 I set -1 /
Vb來修正在之前之步㈣^所據電池電屢值 電池電壓值Vb降低時，對於步進馬目“驅動脈衝率。 低，且馬達轉矩亦陰彳n L 、、 之轭加電壓亦降 驅動脈衝率高時因弓这 '步進馬達22容易產生失調。 降的影響，而更低’故尤其受到電池電屋下 述有第5圖之電.池電壓 ^因此’控制單元1係從記 即電池電愚備Γ 動脈衝率修正量之關係、亦 降低到m時：二：正常之電遷值為大謂時， 參照第5圖，，於電=衝率修正為較低。具體而言， 修正量传為⑽時，對應之驅動脈衝率 相乘二 此，將目標驅動脈衝率與修正量 之目標驅動脈衝率。 時亦设定為可確保轉矩 反之’電池電壓值較高時，如坌 1係決定較高…旦 弟5圖所示’控制單元Vb to correct the previous step (four) ^ according to the battery power value battery voltage value Vb decreased, for the stepping horse "drive pulse rate. Low, and the motor torque is also negative n L,, the yoke plus voltage When the drop drive rate is high, the 'stepper motor 22 is prone to offset. The effect of the drop is lower, so it is especially affected by the battery house. The battery has the voltage shown in Figure 5. ^The control unit 1 From the point of view, the relationship between the battery impulse and the correction of the pulse rate correction amount is also reduced to m: 2: When the normal electromigration value is large, refer to Fig. 5, and the power = impulse rate is corrected to be lower. Specifically, when the correction amount is transmitted as (10), the corresponding drive pulse rate is multiplied by two, and the target drive pulse rate and the target drive pulse rate of the correction amount are also set to ensure the torque and vice versa. When the time is high, the 坌1 system decides to be higher...
高。例如，正〜f厂目標驅動脈衝率設定為較 正㊉之電屬值為大致14V之情形下’上升至16V 320498 10 201000828 :係將：標驅動脈衝率修正為較高。具體而言， 成為也電Μ值為.時’對應之驅動脈衝率修正量係 '、、、.。因此，將目標驅動脈衝率與修正旦 ^ 藉此，即使對於步進馬達22之施加電壓變= :短施加時間來抑制消耗電流，且抑制步進馬= i·進於可設定之驅動脈衝率之範圍係依所使用之 半成為在該乾圍内進行限制。 之，著’在步驟1G4巾’控制單元〗係比較目前所設定 j驅動=衝率與在步驟1G3中所修正之目標驅動脈衝 乂而在目前驅動脈衝率較目標驅動脈衝率為低時（yes) t至步驟105。反之，在目前驅動脈衝率為目標驅動脈 衝率以上時（恥）則前進至步驟106。 接著，在步驟1〇5中，控制單元丨係將目前驅動脈衝 率遞增^當於最小解析度，而接近目標‘I區動脈衝率。 另方面，在步驟丨06中，控制單元丨係實施與步驟 lj)4^相反之比較，在目前驅動脈衝率較目標驅動脈衝率為 1時（YES)係前進至步驟1〇7。於步驟1〇6中之比較不成立 年（N0)則判斷目前驅動脈衝率與目標驅動脈衝率為一致， 不進行目前驅動脈衝率之變更而前進至步驟1〇8。 接著’在步驟1 〇 7中，控制單元1係將目前驅動脈衝 率遞減相當於最小解析度，而接近目標驅動脈衝率。 藉由從步驟104到步驟107之一連串之操作，由於不 心遽叆更目前驅動脈衝率，因此可防止步進馬達22之失 11 320498 201000828 調。然而，考慮到即使大幅切 义 為步進馬達22之性能而失$ '刚’脈衝率亦不會因 之目前驅動脈衝率因此步物及步驟m 在步驟108中，制：?限疋為最小解析度。 中所運算之_動脈:率係3 = /05及步驟 •達22之經區分施加脈衝時間之各期門、口要粑加於步進馬 例如，從記述有目前驅動脈衝率、盥9之龍控制負载比。 9所檢測出之引擎溫度 成/由^擎▲度感測器 負載比。目前驅動脈衝二St，黑:？制 之施加脈衝時間較短，因此消耗、/於步進馬達22 衝率較低時，由於對於步進 ^ 乂低，惟目前驅動脈 長，因此消耗電流會變高。vt 衝時間變得較 比’即使目前驅動脈衝率較低‘:心：：制負载 本發明，例1二= 間整體之;载比負載比’惟亦繼 依據電、、也電109中’控制單元1係與步驟103同樣 時，對於修正嚮控制負载比。電池電壓值較低 320498 12 1 係從記述有:β:會有引起失調之虞。因此，控制單元 量之關俜m池電屢值與pwm控制負載比修正 係之映成矣電塵值與爾控制負載比修正量之關 、成表’於電池電麼值降低時，例如，正常之電壓值 201000828 ^大致14V之!月形下，降低至】〇v時係將㈣控制負载比 ^正為較高。具體而言，參照第6圖，於電池電壓值為 時，對應之剛控制負載比修正量係成 ：少進馬達22之施加電壓而使轉矩提升。 ，馬達==電壓值較高時，控制單元1為了防止步進 f本正為r*低Γ降低消耗電流之方式將PWM控制負载比 ,〔乳 常之電遷值為大致14V之情形下， 參4:時控制負载比修正為較低。具體而言， 载值為叫對應之_制負 係受到所使用之步進馬達蘭#制負載比之範圍 之㈣控制負载比成 之種:之限㈣ TO控制負载比之 方式進仃限制處理。另外， _個期間)，=為間之前半期 接著，在步驟i i 0中_ •、固’月間） 異常時，對於步進二不电池電屋值超過規定值之 此，控制單元1係在電池H之施加電遷變得非常高。因 步驟⑽及步驟⑽中:值’例如超過抓跨，將在 期間各個P霞押 、疋經區分脈衝施加時間内之各 ⑽。藉此，_減低H律=較低，例如一律設定低 進馬達22之發熱。 ’’、達22之消耗電流，且抑制步 再者’在步驟U1中 ，技制.單元1係依據前述之目前 320498 13 201000828 驅動脈衝率及PWM控制 21之步進馬達22，以驅^^^電壓供給至燃料果 ，加以吐出;及控制單元广二^槽20吸引燃料並 、之步進馬这將對於猎由驅動脈衝率所決定 ，燃料吐出量；控制二藉由脈衝寬度調變控制來控制 正目標驅動詩盎 糸根據電池25之電池電壓值而修 方式運曾^ 且以接近此修正之目標驅動脈衝率之 動脈衝率，並且根據電池25之電池電壓值 載比予以修正’一之:二， 料泵21之步進w22 =f由在電池電壓異常時確保燃 生氣泡。 代步進馬達22之消耗電流而抑制產 力於/進馬達22之驅動脈衝率 厂堅降低，步進馬達22之轉矩有降低之虞貝 驅動脈衝率切換為、隹？下’猎由將 保步進馬達22之轉矩。藉由::轉:步^ 時亦可從燃料泵供給燃料。^巨’即使電池電壓降低 此外，本發明實施例i之引 时一 係在電池25之電池電壓值有仴：、，控制早兀1 &值有車乂向傾向之情形下，由於將施 320498 14 201000828 = 達：動，衝ί修正為高頻’因此可_ 由減，對於步進馬達22發熱:二：藉 此外’本發明實施例1之引擎控 係在對於步進馬達22之脈衝早兀1 間之期間之令，根據電池電麗值來修正第:姻里'複丈個期 控制負載比。藉由在其他期間之外另=第固期間之雨 控制負'載比，即可在承受較高負载之步間之_ 始時亦確保較高之轉矩。、'、之驅動開- 外，本發明實施例1之引擎控制裝置，元1 間之期馬達22之脈衝施加時間内區分為複數個期 期二二/:rr值來_個_^^ 確實地使:可在第1物 馬達錢控制步進 因為消耗一咸：所：、 低之程度之轉矩’而能減低 ，均粍$ Μ低所導狀馬料H耳熱。 係在卜’9本發明實施例1之引擎控制裝置，、控制單元1 :、在電>也25之電池電壓值有較低傾向 修正為較高。藉此，即可提高對於;下以 之細加電壓，且確保馬達轉矩不致產生失調。進馬達Μ :外’本發明實施例i之引擎控制裝置 咖在電池25之電池電壓值有較高傾 兀 控制負載比修正為較低。藉此，即可七^，將削 L電流增大所導致步進馬達22 變 3連以之發熱，且亦可抑制氣 320498 15 201000828 泡之產生。 本發明實施例1之引擎控制裝置，控制單元 係在電池25之電池電壓值护讲 — 複數個瑚fl夕η 超過規疋值之情形下，將區分為 灵個.之脈衝施加時間内之所有期間之顺控制 :刀較低，因此不會對步進馬達22施加異常高之電壓 之產生耗電流之增大、步進馬達22之發熱、氣泡 。此外’由於可抑制線圈之熱性劣化，因此可有助 於燃料供給裝置之可靠性提升。 【圖式簡單說明】 弟1圖係為顯示包括本發明實施例J之 之引擎之系統構成圖。 ^工制裝置high. For example, if the target drive pulse rate of the positive-f factory is set to a value of approximately 14V for the positive tenth, the rise to 16V 320498 10 201000828: the standard drive pulse rate is corrected to be higher. Specifically, when the electric Μ value is ., the corresponding drive pulse rate correction amount is ', , , . Therefore, the target drive pulse rate and the correction are achieved, whereby even if the applied voltage of the stepping motor 22 becomes = short application time to suppress the current consumption, and the stepping horse is suppressed = i· enters the settable drive pulse rate The range is limited in the dry circumference depending on the half used. The 'control unit in step 1G4 towel' compares the currently set j drive=rush rate with the target drive pulse 修正 corrected in step 1G3 and when the current drive pulse rate is lower than the target drive pulse rate (yes t to step 105. Conversely, when the current drive pulse rate is above the target drive pulse rate (shame), the process proceeds to step 106. Next, in step 1〇5, the control unit 递增 increments the current drive pulse rate by the minimum resolution and approaches the target 'I zone dynamic pulse rate. On the other hand, in step 丨06, the control unit performs a comparison with the steps lj) 4^, and proceeds to step 1〇7 when the current drive pulse rate is 1 compared to the target drive pulse rate (YES). When the comparison in step 1〇6 is not established (N0), it is judged that the current drive pulse rate coincides with the target drive pulse rate, and the process proceeds to step 1〇8 without changing the current drive pulse rate. Then, in step 1 〇 7, the control unit 1 decrements the current drive pulse rate by a minimum resolution and approaches the target drive pulse rate. By a series of operations from step 104 to step 107, the stepping motor 22 can be prevented from being lost due to the fact that the current driving pulse rate is not more than the heart rate. However, considering that even if the sharp cut is the performance of the stepping motor 22, the loss of the ''just' pulse rate will not be caused by the current driving pulse rate. Therefore, the step and the step m are in the step 108, and the limit is minimized. Resolution. In the calculation of the _ arteries: rate system 3 = /05 and steps • up to 22 to distinguish the application of the pulse time of each period of the door, the mouth to be added to the stepper horse, for example, from the description of the current drive pulse rate, 盥9 The dragon controls the load ratio. 9 detected engine temperature into / by the ▲ ▲ sensor load ratio. Currently driving pulse two St, black:? Since the applied pulse time is short, the consumption is low, and when the stepping motor 22 has a low impulse rate, since the stepping voltage is low, the current driving pulse length is high, so that the current consumption becomes high. Vt rush time becomes more than 'even if the current drive pulse rate is lower': heart:: load of the invention, example 1 = = overall; load-to-load ratio 'only depends on electricity, and also electricity in 109' The control unit 1 is the same as the control load ratio for the correction in the same manner as in step 103. The battery voltage is lower. 320498 12 1 The system is described as follows: β: There is a possibility of causing an imbalance. Therefore, the relationship between the control unit quantity and the pwm control load ratio correction system is the relationship between the electric dust value and the control load ratio correction amount, and when the battery value decreases, for example, The normal voltage value is 201000828 ^ roughly 14V! Under the moon shape, the lower the control load ratio (4) is higher. Specifically, referring to Fig. 6, in the case of the battery voltage value, the corresponding control load ratio correction amount is such that the torque is increased by the input voltage of the motor 22 is reduced. When the motor == voltage value is high, the control unit 1 controls the PWM control load ratio in order to prevent the step f from being low and reducing the current consumption, and the case where the electromigration value is approximately 14V. Step 4: The control load ratio is corrected to be lower. Specifically, the load value is called the corresponding _ system negative system is affected by the range of the stepping motor blue # load ratio used. (4) The control load ratio is determined as follows: (4) TO control load ratio mode . In addition, _ a period of time, = is the first half of the interval, then in step ii 0 _ •, solid 'month' anomaly, the control unit 1 is in the battery for the step two battery power value exceeds the specified value The applied current of H becomes very high. In the step (10) and the step (10), the value ', for example, exceeds the gripping span, and each of the P-shakes and the ticks are differentiated during the pulse application time (10). Thereby, the _reduction H law = lower, for example, the heat of the low-induction motor 22 is uniformly set. '', up to 22 current consumption, and suppression step again 'in step U1, technical system. Unit 1 is based on the current 320498 13 201000828 drive pulse rate and PWM control 21 stepper motor 22 to drive ^^ ^The voltage is supplied to the fuel fruit, and is spit out; and the control unit is wide 2 trough 20 to attract the fuel and the stepping horse will be determined by the driving pulse rate for the hunting, the fuel discharge amount; the control 2 is controlled by the pulse width modulation To control the positive target driving poems according to the battery voltage value of the battery 25, and to drive the pulse rate close to the target of the correction, and to correct according to the battery voltage value ratio of the battery 25' Second, the stepping of the pump 21 w22 = f ensures that the combustion bubbles are generated when the battery voltage is abnormal. The current consumption of the stepping motor 22 is suppressed, and the driving pulse rate of the motor/input motor 22 is suppressed. The factory is lowered, and the torque of the stepping motor 22 is lowered. The driving pulse rate is switched to ? The next 'hunting' will guarantee the torque of the stepper motor 22. The fuel can also be supplied from the fuel pump by: turning: step ^. In addition, when the battery voltage is lowered, the battery voltage value of the battery of the embodiment of the present invention is 仴:,,,,,,,,,,,,,,,,,,,,, 320498 14 201000828 = 达: 动, 冲ί corrected to high frequency 'so can be reduced, for stepper motor 22 to generate heat: two: by this, the engine control system of the first embodiment of the present invention is pulsed for the stepping motor 22 The order of the period between 1 and 1 is corrected according to the battery value of the battery: the balance of the control period of the marriage period. By controlling the negative 'load ratio' for rain during the other period than during the other period, it is possible to ensure a higher torque at the beginning of the step of receiving a higher load. In addition, in the engine control device of the first embodiment of the present invention, the pulse application time of the motor 22 between the units 1 is divided into a plurality of periods of two or two /: rr value _ _ ^ ^ Ground: You can control the stepping of the motor in the first item because the consumption is salty: the torque of a low degree can be reduced, and the value of the horse is H. In the engine control device according to the first embodiment of the present invention, the control unit 1 has a lower tendency to change the battery voltage value in the electric battery. Thereby, it is possible to increase the voltage for the next step, and to ensure that the motor torque does not cause an offset. The motor control unit of the present invention i has a higher battery voltage value in the battery 25 and the control load ratio is corrected to be lower. By this, it is possible to increase the current of the stepping motor 22 by increasing the L current, and it is also possible to suppress the generation of the bubble 320498 15 201000828. In the engine control device of Embodiment 1 of the present invention, the control unit is in the case of the battery voltage value of the battery 25 - in the case where the plurality of hustle η exceeds the standard value, all of the pulse application time is divided into The smooth control of the period: the knife is low, so that an abnormally high voltage is not applied to the stepping motor 22, and an increase in current consumption, heat generation of the stepping motor 22, and air bubbles are not caused. Further, since the thermal deterioration of the coil can be suppressed, the reliability of the fuel supply device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS The Fig. 1 is a system configuration diagram showing an engine including the embodiment J of the present invention. ^工装置
第2圖係為顯示本發明實施例i之引擎控 進馬達之定子與端子之關係圖。 V 、第3圖係為顯示本發明實施例丨之引擎控制裝置之步 進馬達中驅動脈衝率之通常形態圖。 乂 第4圖係為顯示本發明實施例丨之引擎控制裝置之步 進馬達之驅動控制之流程圖。 " / 第5圖係為顯示本發明實施例丨之引擎控制裝置之電 池電壓值與驅動脈衝率修正量之關係圖。^ 第6圖係為顯示本發明實施例丨之引擎控制枣置之電 池電壓值與PWM控制負載比修正量之關係圖。 “ 【主要元件符號說明】 控制單元 2 空氣濾清器 吸氣溫感測器 4 吸氣管 320498 16 3 201000828 5 節流閥 6 節流位置感測器 7 吸氣壓感測器 8 引擎 9 引擎溫度感測器 10 曲柄軸 11 曲柄角感測器 _ 12 排氣管 13 消音器 14 點火線圈 15 火星塞 20 燃料槽 21 燃料泵 22 步進馬達 23 壓力燃料配管 24 喷射器 25 電池 T 端子 Vb 電池電壓值 17 320498Fig. 2 is a view showing the relationship between the stator and the terminal of the engine control motor of the embodiment i of the present invention. V and Fig. 3 are diagrams showing a general pattern of the driving pulse rate in the stepping motor of the engine control device according to the embodiment of the present invention. Fig. 4 is a flow chart showing the drive control of the stepping motor of the engine control device of the embodiment of the present invention. " / Fig. 5 is a diagram showing the relationship between the voltage value of the engine and the amount of correction of the driving pulse rate of the engine control device according to the embodiment of the present invention. ^ Fig. 6 is a diagram showing the relationship between the voltage value of the engine control jujube and the PWM control load ratio correction amount in the embodiment of the present invention. " [Main component symbol description] Control unit 2 Air filter suction temperature sensor 4 Suction tube 320498 16 3 201000828 5 Throttle valve 6 Throttle position sensor 7 Suction pressure sensor 8 Engine 9 Engine temperature sense Detector 10 crankshaft 11 crank angle sensor _ 12 exhaust pipe 13 muffler 14 ignition coil 15 spark plug 20 fuel tank 21 fuel pump 22 stepper motor 23 pressure fuel pipe 24 injector 25 battery T terminal Vb battery voltage value 17 320498