1322224 九、發明說明： 【發明所屬之技術領域】 本發明係關於引擎之燃料喷射裝置及其異常判定方 • 法者，該燃料噴射裝置係例如用於2輪車引'擎之燃二喷射 …控制’且使料有藉由通電至螺線管（s()len(Did亦稱電磁線 圈）使柱塞（PlUnger)往復運動而吸引、加壓燃料並予以喷射 的功能之燃料噴射模組者。 【先前技術】 • μ在控制單元（C〇咖Iunit)依據引擎之轉速和負荷而計 异燃料供給量然後將驅動訊號給予燃料喷射閥的電子控制 燃料噴射裝置中，藉由電磁力使柱塞往復運動，以吸引、 加壓燃料並予以喷射的燃料噴射模組為習知的。該燃料喷 ^模 '、且，係利用控制單元所給予的驅動訊號通電至螺線 B柱塞於是將燃料加壓，使之以預定的燃料壓力噴射。 之後，將螺線管的通電停止，柱塞即由彈簧加以推回以吸 鲁引下次噴射用的燃料。 I吏用燃料噴射模組的燃料喷射裝置，與將燃料的加壓 ，[以燃料果（pump)和壓力調節器（reguiator)進行且將 加[燃料以嘴射器（injee⑽加以喷射之類的燃料喷射裝置 相比，構成零件較少，另外因僅於噴射時進行通電故有平 均消耗電力較少的優點。因此，適合發電機或電池之能力 較低的小型2輪車。 作為使用該燃料喷射模組的燃料噴射方法，有例如， 在·”、料噴射用之螺線管之驅動開始且經過預定時間的時點 5 318531 1^2224 檢測電流值，並根據該檢測值，或根據該檢測值與依必要 的燃料量而要求的驅動脈衝寬度，求出脈衝寬度的補正 值，且藉由用該補正值將實際的驅動脈衝寬度予以增減修 正’而將線圈溫度等對燃料噴射量之影響減低的技術曾經 提出（參照專利文獻1)。 另外，作為該燃料喷射模組的螺線管驅動裝置，有例 如，具有在將螺線管的電流遮斷而使驅動停止時，將蓄積 ::累線管的電力暫時地蓄積於電容器，且在要再度驅動螺 線官時，使該蓄積的電力放雷而供丛5碑& — J电刀双电而供給至螺線管的手段的技 術曾經提出（參照例如專利文獻2)。 (專利文獻1)曰本特開2003_113732号公報（第2頁第3 圖） (專利文獻2)日本特開2003_49687号公報（第2頁第 圖） 【發明内容】 (發明所欲解決的課題） 料嘖料噴射模組的燃料喷射系統中，雖因僅在燃 科噴射¥通電而使平均的消耗電流較少，但噴射時卻合有 。例如，燃料喷射模組之螺線管的電阻值“ :二Ω左右時，若以電帽14V進行驅動，則依驅動 脈衝寬度而定會有4至9A的電流流動。 模组態或劣化狀態’則無法得到燃料喷射 杈..且之驅動所必為的電力，對引擎之燃料供纶旦 而導致引擎運轉狀態之狀況不佳。 :，、〇里θ， 另外，電池為放電狀態 318531 6 -或劣化狀態，會有電池㈣因燃料喷射模組之驅動而降 &導則來給予燃料11射模組驅動訊號的控制單元無法 •正㈣作’使得引擎之運轉無法繼續進行的情形。 A上述專利文獻所揭示的以往之燃料喷射裝置，因不具 …備能適切地判斷電池之放電狀態或劣化狀態的手段，故有' ^正確監視電池狀態的問題點。尤其’在使用於小型2 輪車的情形中，因發電機之發電能力小，且電池之容量也 小2緣故，要避免如上所述之問題，電池管理之必要性便 升间但一般使用者日常性地執行電池管理一事係有其困 n ° 八 t發明係為了解決如上所述之問題點而完成者，其目 的在提供-種控制單元可正確地監視電池之狀態，且可促 使使用者進行電池的維護之燃料喷射裝置，以防止引擎之 狀況不佳或停止轉動（sta⑴於未然。 (用以解決課題的手段） φ 树明之燃料喷射裝置，係具有：燃料喷射模組，其 /、猎由朝螺線管之電流的0N、OFF使柱塞往復運動而 吸引加壓燃料並予以嘴射的功能；控制單元，根據引擎 轉狀態而給予燃料噴射模組驅動訊號；發電機，藉由 轉動而進行發電；以及儲存電力的電池，其中，斤 制單^具有電池㈣檢測手段與電池狀態判定手段，: 螺線s之驅動訊號變為⑽且在〇N狀態經過預定時間 後，以電池電壓檢測手段檢測電池電壓，以電池狀態判定 手段將電池電壓與預定值比較而判定電池狀態，並將判定 318531 S > 7 U22224 結果顯示於顯示手段。 另外，係為控制單元内具有螺線管電流檢測手段與電 池狀I、判定手段，在螺線管之驅動訊號變為⑽且在ON 狀態經過預定時間後，以螺線管電流檢測手段檢測螺線管 電流’以電池狀態判定手段將螺線管電流與預定值比較而 判定電池狀態’並將判定結果顯示於顯示手段。 ，外，係為前述控制單元内具有電池電壓檢測手段、 螺線管電流檢測手段與電池狀_定手段，在螺線管之驅 動訊號變為ON且在0N狀態經過預定時間後，以電池電 壓檢測手段檢測電池電|同時以螺線管電流檢測手段檢測 螺線管電流，以電池狀態判^手段將從電池電壓與螺線管 電流計算出的計算值與預定值比較而判定電池狀態，並將 判定結果顯示於顯示手段。 另外，本發明的燃料噴射裝置之異常判定方法，係袭 由如上述構成的燃料噴射裝置而判定電池異常者。 £ ▲此外’係為控制單元内具有電池㈣檢測手段與電灿 狀癌判定手段’ m池電壓檢測手段檢測螺線管之驅動 訊號為OFF時的電池電壓與螺線管之驅動訊號變為⑽且 在ON狀態經過狀時間後的電池電壓，且以電池狀熊判 定手段將檢測出的兩電池電壓之差與預定值比較而判定電 池狀態，並將判定結果顯示於顯示手段者。 (發明之效果） 依據本發明之燃料翁裝置，由於在螺㈣之驅動. 號變為ON且在ON狀態經過預定時間後，以電池議 318531 8 1JZ/ZZ4 -測手段檢測電池電塵，且以電池狀態判定手段將檢測出的 •電池電壓與預定值比較以判定電池狀態，並將判定結果顯 .不於顯示手段’因此係以螺線管通電中的電池㈣來判斷 .電池異常，故可進行高精度的電池異常檢測。另外，因為 〆可以視覺性地知道電池的異常狀態，故可在引擎狀況不佳 或停止轉動等故障發生前將異常傳達給使用者。 a另外，由於在螺線管之驅動訊號變為ON且在〇N狀 狀過預疋時間後，以螺線管電流檢測手段檢測螺線管電 籲流，且以電池狀態判定手段將螺線管電流與預定值比較而 判疋電池狀態，並將判定結果顯示於顯示手段，因此係以 螺線管通電中的螺線管電流來判斷電池異常，故可進行高 精度的電池異常檢測。 .η α此外，由於在螺線管之驅動訊號變為ON且在ON狀 •態經過預定時間後，以電池狀態判定手段，將從電池電壓 檢測手段所檢測出的電池電壓與螺線管電流檢測手段所檢 鲁測出的螺線管電流計算出的計算值與預定值比較，而判定 電/也狀九'並予以頌不，因此可進行根據電池的内部電阻之 電池狀態的判斷’故可提供對於電池劣化能夠進行更高精 度的電池狀態的判斷之燃料噴射農置、或燃料喷射襄置之 異常判定方法。 另外由於在螺線管之驅動訊號為〇FF時、以及螺線 管之驅動訊號變為⑽且在⑽狀態經過預定時間後進行 電池電壓的檢測，而從檢測出的兩電池電壓的差判定電池 狀L並予、顯*目此可去除螺線管非通電時之電池電壓 318531 9 1322224 故可進行更正確的 -的變動之影響而判斷電池電壓之降低 電池狀態的判斷。 【實施方式】 • _ (第1實施形態） …=圖係顯示本發明之燃料噴射裝置的構成圖。燃料 喷裝置，係具備：燃料喷射模组1，其具有以電磁力作 為驅動源而屢送從燃料槽（未圖示）導出的燃料之柱塞式的 電磁驅m據引擎（未圖示）之運轉狀態而將驅動訊號 »給予燃料噴射模^的控制單元2;發電機3，安裝於引擎 之曲柄（咖k)軸且藉由其轉動而進行發電；調節器 (regulator)4,將發電電壓控制於最適當值；以及電池5， 蓄積發電產生的電力。 上述燃料喷射模組丨，係具有以電磁方式驅動柱塞（未 •圖示）的螺線管U，螺線管la之—端係經由逆流防止用的 二極體6而連接至電池5，另一端則經由作為此電路之開 籲關（switching)元件的後述之螺線管驅動用FET 1〇與電流檢 測用電阻7而連接至接地側。 控制單元2係具有微電腦8。根據來自未圖示的感測 器等之輸入而以微電腦8計算應喷射的燃料量，且將計算 結果傳送至螺線管驅動控制電路9，則螺線管驅動控制電 路9會傳送螺線管驅動訊號給螺線管驅動用fet 1〇。藉 此’螺線管驅動用FET 10便ON或OFF，螺線管la之通 電電流也隨之ON或OFF。通電電流為on，燃料喷射模 組1之柱塞便對燃料進行加壓’且以預定之燃料壓力予以 318531 10 7射。通電電流為0FF，柱塞即由彈簧加以推回以吸引下 噴射用的燃料。如此，柱塞會往復運動而使燃料之吸引、 π壓、噴射、停止的循環重複。 _ 另外控制單元2設置有螺線管驅動電路，此螺線管1322224 IX. Description of the Invention: The present invention relates to a fuel injection device for an engine and an abnormality determining method thereof, and the fuel injection device is used, for example, for a two-wheeled vehicle. Controlling the fuel injection module of the function of attracting, pressurizing, and injecting the fuel by energizing the solenoid (s() len (Did, also called electromagnetic coil) to reciprocate the plunger (PlUnger) [Prior Art] • μ is in the electronically controlled fuel injection device in which the control unit (Cunit Iunit) calculates the fuel supply amount according to the engine speed and load and then gives the drive signal to the fuel injection valve. It is known to reciprocate a fuel injection module for attracting, pressurizing, and injecting fuel. The fuel injection mold is powered by a drive signal given by the control unit to the solenoid B plunger. The fuel is pressurized to be injected at a predetermined fuel pressure. Thereafter, the energization of the solenoid is stopped, and the plunger is pushed back by the spring to suck the fuel for the next injection. The fuel injection device of the group is compared with a fuel injection device that pressurizes the fuel, [pumps and a reguiator, and adds [fuel to the injector (injee (10)). There are fewer components, and there is an advantage that the average power consumption is small because it is energized only at the time of injection. Therefore, a small two-wheeled vehicle having a low capacity suitable for a generator or a battery is used as a fuel injection using the fuel injection module. The method may be, for example, detecting a current value at a time point 5 318531 1^2224 at which the driving of the solenoid for the material injection starts and a predetermined time elapses, and according to the detected value, or according to the detected value and the necessary fuel A technique for reducing the influence of the coil temperature and the like on the fuel injection amount by determining the correction value of the pulse width and determining the correction value of the pulse width by using the correction value to increase or decrease the actual drive pulse width by the correction value (refer to Patent Document 1) Further, the solenoid driving device of the fuel injection module has, for example, interrupting the current of the solenoid to stop the drive. At the time of accumulating: the electric power of the accumulating pipe is temporarily accumulated in the capacitor, and when the solenoid operator is to be driven again, the accumulated electric power is de-throwed and supplied to the electric power of the plexus & The technique of the means of the solenoid has been proposed (see, for example, Patent Document 2). (Patent Document 1) Japanese Patent Laid-Open Publication No. 2003-113732 (No. 2, No. 3) (Patent Document 2) Japanese Patent Laid-Open No. 2003-49687 (No. (2nd page) [Summary of the Invention] (Problem to be Solved by the Invention) In the fuel injection system of the material injection module, the average current consumption is small because only the fuel injection is energized, but the injection time is small. For example, when the resistance value of the solenoid of the fuel injection module is "two Ω or so, if the electric cap 14V is driven, a current of 4 to 9 A flows depending on the driving pulse width. The mode configuration or the degraded state' is not able to obtain the fuel injection 杈.. and the driving power must be, and the engine fuel is supplied to the engine and the engine is in a poor state. :,, 〇里θ, In addition, the battery is in the discharge state 318531 6 - or in the degraded state, there will be a battery (4) due to the fuel injection module driving down and / / • Positive (four) is the case where the operation of the engine cannot continue. In the conventional fuel injection device disclosed in the above-mentioned patent document, since there is no means for appropriately determining the discharge state or the deterioration state of the battery, there is a problem that the battery state is correctly monitored. In particular, in the case of using a small two-wheeled vehicle, the power generation capacity of the generator is small, and the capacity of the battery is also small. To avoid the problems as described above, the necessity of battery management is increased, but the general user The routine implementation of battery management has its own difficulties. In order to solve the above problems, the purpose is to provide a control unit that can correctly monitor the state of the battery and can prompt the user. A fuel injection device that performs maintenance of a battery to prevent the engine from being in a bad condition or to stop rotating (sta (1) is not present. (Means for solving the problem) φ Shuming's fuel injection device has a fuel injection module, and/or Hunting by the 0N, OFF current of the solenoid to reciprocate the plunger to attract pressurized fuel and to give the nozzle a function; the control unit gives the fuel injection module driving signal according to the state of the engine; the generator, by Rotating to generate electricity; and storing the battery of the electric power, wherein the charging unit has the battery (four) detecting means and the battery state determining means, the driving signal of the spiral s is changed (10) After the 〇N state has elapsed for a predetermined time, the battery voltage is detected by the battery voltage detecting means, and the battery state is determined by comparing the battery voltage with a predetermined value to determine the battery state, and the result of the determination 318531 S > U2224 is displayed on the display. In addition, the control unit has a solenoid current detecting means, a battery state I, and a determining means. When the driving signal of the solenoid becomes (10) and a predetermined time elapses after the ON state, the solenoid current detecting means is used. The detecting solenoid current 'determines the battery state by comparing the solenoid current with a predetermined value by the battery state determining means' and displays the determination result on the display means. In addition, the battery voltage detecting means and the screw are provided in the control unit. The line tube current detecting means and the battery type determining means, after the driving signal of the solenoid is turned ON and the predetermined time is passed in the 0N state, the battery voltage is detected by the battery voltage detecting means | and the solenoid is detected by the solenoid current detecting means The line current is determined by the battery state by calculating the calculated value from the battery voltage and the solenoid current to a predetermined value. The battery state is determined and the determination result is displayed on the display means. The abnormality determination method of the fuel injection device according to the present invention determines that the battery abnormality is caused by the fuel injection device configured as described above. The control unit has a battery (four) detecting means and a cancellous cancer determining means. The m cell voltage detecting means detects that the driving voltage of the solenoid is OFF and the driving signal of the solenoid becomes (10) and passes through the ON state. The battery voltage after the time, and the battery-like bear determination means compares the detected difference between the two battery voltages with a predetermined value to determine the battery state, and displays the determination result on the display means. (Effect of the invention) According to the present invention The fuel forging device detects the battery dust by the battery 318531 8 1JZ/ZZ4 - measuring means after the snail (4) is driven to turn ON and the ON state passes for a predetermined time, and is detected by the battery state determining means. • The battery voltage is compared with a predetermined value to determine the battery status, and the result of the determination is displayed. It is not the display means 'Therefore, the electricity in the solenoid is energized. (Iv) to determine the battery abnormality, so that the battery can be highly accurate abnormality detection. In addition, because 〆 can visually know the abnormal state of the battery, the abnormality can be communicated to the user before the failure of the engine or the stop of the engine. a In addition, since the driving signal of the solenoid is turned ON and the 疋N shape is excessively advanced, the solenoid current detecting means is detected by the solenoid current detecting means, and the solenoid state is determined by the battery state determining means Since the tube current is compared with the predetermined value and the battery state is judged, and the determination result is displayed on the display means, the battery abnormality is determined by the solenoid current during the energization of the solenoid, so that high-accuracy battery abnormality detection can be performed. .η α Further, since the driving signal of the solenoid is turned ON and the battery state determination means is passed after the predetermined state of the ON state, the battery voltage and the solenoid current detected from the battery voltage detecting means are detected. The calculated value calculated by the detection means is compared with the predetermined value, and the electric quantity is judged to be "negative" and is not performed, so that the judgment of the battery state based on the internal resistance of the battery can be performed. It is possible to provide a fuel injection farm or a fuel injection device abnormality determination method capable of determining a battery state with higher accuracy in battery deterioration. Further, when the driving signal of the solenoid is 〇FF, and the driving signal of the solenoid becomes (10) and the battery voltage is detected after a predetermined time elapses in the state of (10), the battery is determined from the difference between the detected two battery voltages. In the case of the L voltage, the battery voltage 318531 9 1322224 when the solenoid is not energized can be removed, so that the battery voltage can be judged by reducing the influence of the more accurate fluctuation. [Embodiment] _ (First Embodiment) ... = Drawing A configuration diagram of a fuel injection device of the present invention is shown. The fuel injection device includes a fuel injection module 1 having a plunger type electromagnetic drive engine (not shown) that repeatedly supplies fuel derived from a fuel tank (not shown) by using an electromagnetic force as a drive source. In the operating state, the driving signal is given to the control unit 2 of the fuel injection module; the generator 3 is mounted on the crank shaft of the engine and is powered by the rotation thereof; the regulator 4 will generate electricity The voltage is controlled at the most appropriate value; and the battery 5 accumulates the power generated by the power generation. The fuel injection module 具有 has a solenoid U that electromagnetically drives a plunger (not shown), and the end of the solenoid la is connected to the battery 5 via a diode 6 for backflow prevention. The other end is connected to the ground side via a solenoid driving FET 1 后 and a current detecting resistor 7 which will be described later as switching elements of the circuit. The control unit 2 has a microcomputer 8. The amount of fuel to be injected is calculated by the microcomputer 8 based on an input from a sensor or the like (not shown), and the calculation result is transmitted to the solenoid drive control circuit 9, the solenoid drive control circuit 9 transmits the solenoid The drive signal is used to drive the solenoid with fet 1〇. By this, the solenoid driving FET 10 is turned ON or OFF, and the energizing current of the solenoid la is also turned ON or OFF. When the energizing current is on, the plunger of the fuel injection module 1 pressurizes the fuel' and shoots at 318,531,107 at a predetermined fuel pressure. The energizing current is 0FF, and the plunger is pushed back by the spring to attract the fuel for the lower injection. In this way, the plunger reciprocates to repeat the cycle of suction, π pressure, injection, and stop of fuel. _ Further control unit 2 is provided with a solenoid drive circuit, this solenoid
°動電路具有：當螺線管驅動用FET 1〇從〇Ν切換至OFF :’將於螺線管la流動的電流暫時地蓄積，以使該電能可 鱼下螺線管驅動之初期利用的逆流防止用二極體Π 與電容器12 ;以及控制電容器12之放電的放電控制電路 =與放電控制用FET 14。放電控制電路13係從微電腦8 接党指令。 匕卜控制單元2復具有作為螺線管電流檢測手段的 螺線管電流檢測電路15、作為電池電壓檢測手段的電源檢 測電路16以及作為顯示手段的顯示燈驅動電路17與電池 •狀態顯示燈18。另外，於微電腦8之中具有後述的電 .態判定手段8a。 _ 其，，藉由圖式說明如上述方式構成的燃料噴射裝置 之螺線s la之on、OFF動作與螺線管電流及電池電壓之 關係。第2圖⑷係顯示螺線管驅動訊號，⑻係顯示螺線管 電流’ (c)係顯示電池電壓之波形的波形圖。圖中的實線係 表不電池正常時，虛線係表示後述的電池異常時的情況。 又’貫際之電池電壓會重疊有多極發電機（_办心 generat〇r)之發電漣波，但第2圖中將漣波省略。另 外，假設電容器12為已藉由前回之ON動作而蓄電者。 首先從通#的控制方法開始說明。從微電腦8發出 318531 11 丄322224 的指令傳達至螺線管驅動控制電路9，根據指令，螺線管 驅動用FETl(m〇FF切換至⑽。微電腦8與該螺線管驅 動控制電路9之控制指令同時傳送至放電控制電路13，使 放電控制用FET 14為ON。 • 在第2圖（a)中螺線管驅動訊號變為on，首先電容器 12開始向螺線管la放電，放電時間Td後電容器a之電 壓降至電池電壓Vb，則之後螺線管la便以電池電壓vb 加以驅動，在0N動作中喷射燃料。 如第2圖（b)所示，在驅動螺線管1 a起經過預定時間 Tr的時點，藉由螺線f電流檢測電路15檢測螺線管電流 Is —且將相當於電流值的訊號傳送至微電腦8。微電腦8 。十异依據通電電流的修正值以修正螺線管驅動時間。 ^過一定時間後，為了使燃料喷射停止，微電 螺線官驅動用FET10發出遮斷指示以截斷螺線管電流， 用_為，如此-來，在遮斷時 積螺線官1a的電能便蓄積至電容器12，而可於下：A 之螺線管驅動之初期利用。 、人 :上述過程中，電池電㈣如第2圖⑷所示 官電〜流動期間隨著時間經過而略為降低。 …線 接著說明電池5之充電狀態不完全，或電 清況（以下稱電池異常時）之動作。 匕的 =第2 ®(e)中虛線所示，電池異常時與 二電Γ:給能力降低，電池電壓也大幅降低。因此， 將螺線官驅動訊號變為⑽且在⑽狀態(亦即，向螺線管 318531 12 1322224 la通電中的狀態）經過預定時間Tr後的電池電壓Vbl，以 電源檢測電路16加以檢測且送入微電腦8。 此預定時間Tr，在如第1圖所示的具有將流動於螺線 .管la的電流暫時蓄積的電容器12的情況，係設定為比電 -容器12之放電時間Td大。此係因為在電容器12的放電 中’由於螺線管1接受來自電容器12之高電廢的供給故無 法精度良好地檢測電池5之電壓，但在放電後，便可不受 電容器電壓之影響而正確地檢測電池電壓之故。 又，於第2圖之波形圖中，當電池異常時螺線管驅動 訊號的ON時間會變長，這是因為異常時的電源電壓較 低，故以使螺線管驅動時間變長的方式進行控制之故。 檢測出的電池電壓係經濾波（fiIter)處理’然後於微電 腦8内之電池狀態判定手段8a(實際上係在微電腦8内以 权體方式進行處理）中，例如在規定的時間内規定的喷 射:人數中’從數次的測定值之中抽出最低的電壓值，且在 該電壓低於預定之判定電壓時判定為異常，且微電腦8便 :顯不燈驅動電路17發送預定之模式(pattern)的驅動訊 U使電池狀態顯示燈i 8亮燈或閃爍。 又t池狀態顯示燈18，可與其他警告或顯示燈共 示方法相區別。另外，顯示手段不限於燈，以 顯不斋（display)來顯示亦可。 會因「預定之判定電壓」，係選擇為車行* 電壓。八吊又到阻礙之情況的電池狀態不正常時的 318531 13 1322224 -β以下，針對本發明在通電至螺線管的狀態下執行電池 電虔之檢測的理由進行說明。 .^可從並未驅動燃料喷射模組1時，亦即沒有負荷或負 .•荷較少時的電池電壓來檢測電池狀態。例如有在利用點火 --鍵（ignition key)使對控制單元的通電開始時檢測電池電壓 的手段。然而，電池有負荷的放電狀態與接近無負荷狀態 的狀態下的電池電壓（開放電壓）之間雖有相關性，但例 如，在接近無負荷的狀態中12 V系電池的情況，充電狀態 # 0至100%的範圍下電池電壓僅變化lv左右。另外，於電 池之極板發生硫酸鹽化（Sulfati〇n)而使電池變為劣化狀態 時因為電池電壓與充電狀態會產生其他的相關性，故在接 近無負荷狀態下藉由檢測電池電壓（開放電壓）來檢測充電 狀態之精度很差。 另一方面，如本實施形態之發明，在對螺線管通電的 狀態下進行電池電壓的檢測，則尤其在引擎轉速低的情況 瞻因發電機之發電能力低，故通常時與異常時的電壓降低量 產生很大的差之緣故’而使高精度的電池狀態檢測成為可 能。從而可精度良好地檢測電池狀態，以確實地進行電池 的異常判定。 如以上所述，依據本實施形態的發明，在螺線管之驅 動訊號變為ON且在ON狀態經過預定時間後，以電池電 壓檢測手段檢測電池電壓，且以電池狀態判定手段將該電 池電壓與預定值比較以判定電池狀態，並將判定結果顯示 於顯示手段，因此係以螺線管通電中的電池電壓來判斷電 14 318531 iSZ/224 -j異吊’故可進行更高精度的電池狀態之檢測。因此，可 可確實地顯示電池異常等，且在—不佳或停止 轉動等故障發生前將異常傳達給使用相燃料喷射 • ·(第2實施形態） x 接著針對第2實施形態的燃料喷射裝置進行說明。全 體之構成係與第1實施形態之第丨圖相同故省略說明。另 外’波形圖則參照第2圖。 $第2圖（b)所示，當電池異常時，螺線管電流。也 比正常時為低。因此，本實施形態的燃料噴射裝置，係將 此螺線管電流Is檢測出，並利用在電池狀態之判定者。 亦即，當螺線管la之驅動訊號變為〇N且經過預定時 間Tr後’藉由作為螺線管電流檢測手段的螺線管電流檢測 電路15檢測出螺線管電流Is，且藉由電池狀態判定手段 8a將該螺線管電流與預定值比較而判定電池狀態。微電腦 8將判定結果傳達至顯示燈驅動電路17，令顯示燈驅動電 $ 17驅動電池狀態顯示帛18。藉此，電池狀態顯示燈Η 壳燈或閃爍，便可得知現在的電池狀態。 接著，針對本實施形態的另一燃料噴射裝置進行說 明。 ° 一般而言，電池隨著劣化其内部電阻會增大，因内部 電=之增）與電池劣化的相關性比開放電壓與劣化的相關 性高，故藉由檢測出電池之内部電阻，便可以更好的精度 進行電池狀態之檢測。 & 因此，在螺線管驅動訊號變為0N且在〇NK態經過 15 318531 1322224 =時間Tr後’以電源檢測電路 ，固時序以螺線管電流檢測電路15二電:也電屢^ = ls，並將兩方的訊號送入微電腦：：:螺線管電 .，，從此電池電屢外與 =電池狀態判^ 成分的值’且將計算值與預定的基;=出相當於 準值即判定為電池異常。 早值比較，超過基 又’並不限定於以電阻成分進行 電流的積與預定之基準值比較亦可，'例如將電麼與 %與螺線管電流Is計算者即可。/、要疋可從電池電壓 本實施形態中的螺線管電流 來提高燃料喷射模組j之燃^=接用原本用 度修正用的控制單元2中具備的C = = =脈衝寬 另外，將螺線管驅動訊號變為 ：、電4出電路15。 測螺線管電流的時序(亦即預定時間二：：=間ΤΓ後檢 動脈衝寬度修正用的電流檢測之時序而配合驅 話，可減經微電腦8的運算負荷。π為相同時序的 如以上所述，依據本實施形態 的驅動訊號變為⑽且在〇 Χ ，由於在螺線管 線管電流檢測手段檢測出螺線管=過預定時間後’以螺 手段，將檢測出的螺線管電池咖^ 態，並將判定結果顯示於顯示^疋值比較而判定電池狀 中的螺線管電流來判斷電池 ^此係以螺線管通電 更高精度的電池狀態之檢測Γ故針對電池劣化可進行 另外’由於在螺線管的驅動訊號轉為ON且在ON狀 318531 16 1322224 態經過預定時間後，以電池電壓檢測手段檢測出電池電壓 同時以螺線管電流檢測手段檢測出螺線管電流，且以電二 狀態判定手段將從電池電壓與螺線管電流計算出的計算值 與預定值比較而判定電池狀態，並將判定結果於顯示Z段 進行顯不，因此可根據電池之内部電阻判斷電池狀態，而 可針對電池劣化進行更高精度的電池狀態之判斷。因此， 可提供可確實地顯示電池異常等，且在引擎狀況不佳或停 止轉動等故障發生前將異常傳達給使用者之燃料噴射裝置 及燃料噴射裝置之異常判定方法。 另外，使經過預定時間後檢測螺線管電流的時序，與 為了提高燃料喷射模組之燃料喷射量之精度而檢測來修正、 驅動脈衝寬度之螺線管電流的檢測時序相配合時，微電腦 的運算負荷減少，演算速度變快，而可適用於更 引擎。 〜 (第3實施形態） 接者針對第3實施形態的燃料喷射裝置進行說明。全 成及波形圖係與第1實施形態之第1圖及第2圖相 同故省略說明。 了判Ϊ電池之狀態，而於螺線管通電中檢測電池電 :離：螺線官電流之部分，係與第1實施形態與第2實施 離。因此’以下將以與第1實施形態或第2實施形 〜發明相異的部份為中心進行說明。 庠，1目f之Ϊ係在於檢測電池電壓及/或螺線管電流的時 ’第2圖（b)中所示的預定時間&的長度。將預 318531 17 2間ΤΓ’設為從螺線管驅動訊號變為ON起至變為〇FF 時：瞬：為止的長度。亦即，在變為〇ff之前一瞬間的 …订H由第2圖之波形圖可知，在變為〇FF的前 ^間，正常時與異常時的差變大。藉由如此的作法，檢 =驅動循環之中電池電壓降至最低的時間點（Μ)附近的 值，電池狀態判定之精度便提升。 前一瞬間進行檢測 可更提高檢測的精 士此外，如上述在螺線管通電遮斷的The moving circuit has: when the solenoid driving FET 1 is switched from 〇Ν to OFF: 'The current flowing in the solenoid la temporarily accumulates, so that the electric energy can be used in the initial stage of the solenoid driving of the solenoid. The countercurrent prevention diode Π and the capacitor 12; and the discharge control circuit for controlling the discharge of the capacitor 12 = the discharge control FET 14. The discharge control circuit 13 receives the party instruction from the microcomputer 8. The control unit 2 includes a solenoid current detecting circuit 15 as a solenoid current detecting means, a power source detecting circuit 16 as a battery voltage detecting means, and a display lamp driving circuit 17 as a display means and a battery state display lamp 18. . Further, the microcomputer 8 has an electric state determining means 8a which will be described later. The relationship between the on and OFF operations of the spiral s la of the fuel injection device constructed as described above, the solenoid current, and the battery voltage will be described by way of illustration. Fig. 2 (4) shows the solenoid drive signal, and (8) shows the solenoid current ' (c) is a waveform diagram showing the waveform of the battery voltage. When the solid line in the figure is not normal, the broken line indicates the case where the battery described later is abnormal. In addition, the battery voltage of the multi-pole generator (the heart of the genera〇r) is superimposed on the battery voltage, but the chopping is omitted in the second figure. Further, it is assumed that the capacitor 12 is a person who has been charged by the ON operation of the previous time. First, we will start with the control method of ##. The command of 318531 11 丄 322224 is transmitted from the microcomputer 8 to the solenoid drive control circuit 9, and the solenoid drive FET 1 is switched according to the command (m〇FF is switched to (10). The control of the microcomputer 8 and the solenoid drive control circuit 9 is performed. The command is simultaneously transmitted to the discharge control circuit 13 to turn the discharge control FET 14 ON. • In the second diagram (a), the solenoid drive signal is turned on, first, the capacitor 12 starts to discharge to the solenoid la, and the discharge time Td After the voltage of the capacitor a is lowered to the battery voltage Vb, the solenoid la is driven by the battery voltage vb to inject fuel in the 0N operation. As shown in Fig. 2(b), the driving solenoid 1a When the predetermined time Tr elapses, the solenoid current detecting circuit 15 detects the solenoid current Is - and transmits a signal corresponding to the current value to the microcomputer 8. The microcomputer 8 is calibrated according to the correction value of the energizing current to correct the snail The line tube drive time. ^ After a certain period of time, in order to stop the fuel injection, the micro-electric solenoid driver uses the FET 10 to issue an interrupt indication to cut off the solenoid current, using _, so - to, when the snail is blocked The electrical energy of the line officer 1a It is accumulated in the capacitor 12, and can be used in the initial stage of the solenoid drive of the following: A. In the above process, the battery power (4) is slightly reduced as time passes during the period from the official power to the flow period as shown in Fig. 2 (4). The line next explains the incomplete charging state of the battery 5, or the action of the electric cleaning condition (hereinafter referred to as the battery abnormality). 匕 = the second line in the second ® (e), the battery is abnormal and the second battery: the ability When the voltage is lowered, the battery voltage is also greatly reduced. Therefore, the battery voltage Vbl after the predetermined time Tr is passed after the solenoid drive signal is changed to (10) and the state of (10) (that is, the state in which the solenoid 318531 12 1322224 la is energized) It is detected by the power source detecting circuit 16 and sent to the microcomputer 8. The predetermined time Tr is set to be the ratio of the capacitor 12 which temporarily stores the current flowing through the solenoid tube la as shown in Fig. 1 . - The discharge time Td of the container 12 is large. This is because the voltage of the battery 5 cannot be accurately detected due to the supply of the high-voltage waste from the capacitor 12 during the discharge of the capacitor 12, but after the discharge, Can be free from capacitance The voltage of the battery is correctly detected by the influence of the voltage. Also, in the waveform diagram of Fig. 2, the ON time of the solenoid drive signal becomes longer when the battery is abnormal, because the power supply voltage at the time of abnormality is low. Therefore, the control is performed in such a manner that the solenoid driving time is lengthened. The detected battery voltage is subjected to filtering (fiIter) processing and then to the battery state determining means 8a in the microcomputer 8 (actually in the microcomputer 8 In the processing of the right body method, for example, in the predetermined number of injections: the number of people is selected from the measured values of the number of times, and the voltage is determined to be abnormal when the voltage is lower than the predetermined determination voltage. And the microcomputer 8: the display driver circuit 17 sends a predetermined pattern of driving signals U to cause the battery status indicator i8 to light or blink. The t-cell status display light 18 can be distinguished from other warning or display light sharing methods. Further, the display means is not limited to the lamp, and may be displayed by display. It will be selected as the vehicle line* voltage for the "predetermined voltage for the reservation". In the case where the state of the battery is not normal, the reason why the state of the battery is abnormal is 318531 13 1322224 -β. The reason why the battery is detected in the state where the solenoid is energized to the solenoid is described. The battery state can be detected from the battery voltage when the fuel injection module 1 is not driven, that is, when there is no load or negative load. For example, there is a means for detecting the battery voltage when the energization of the control unit is started by using an ignition key. However, there is a correlation between the discharge state of the battery load and the battery voltage (open voltage) in a state close to the no-load state, but for example, in the case of a 12 V battery in a state close to no load, the state of charge # The battery voltage varies only about lv in the range of 0 to 100%. In addition, when the battery plate is sulphated and the battery is in a degraded state, since the battery voltage and the state of charge may have other correlations, the battery voltage is detected by being close to the no-load state ( The accuracy of the open voltage) to detect the state of charge is poor. On the other hand, according to the invention of the present embodiment, when the battery voltage is detected while the solenoid is energized, especially when the engine speed is low, since the power generation capability of the generator is low, the normal time and the abnormal time are The voltage drop amount causes a large difference, which makes high-precision battery state detection possible. Therefore, the state of the battery can be accurately detected to reliably determine the abnormality of the battery. As described above, according to the invention of the present embodiment, after the driving signal of the solenoid is turned ON and the ON state passes for a predetermined time, the battery voltage is detected by the battery voltage detecting means, and the battery voltage is determined by the battery state determining means. Comparing with a predetermined value to determine the state of the battery, and displaying the determination result on the display means, the battery voltage in the solenoid energization is used to determine the electric 14 318531 iSZ/224 -j different suspension, so that a battery with higher precision can be used. Detection of status. Therefore, the coke can positively display the battery abnormality, etc., and convey the abnormality to the use phase fuel injection before the failure such as a poor or stop rotation. (Second embodiment) x Next, the fuel injection device of the second embodiment is performed. Description. The configuration of the whole body is the same as that of the first embodiment, and therefore the description thereof is omitted. See also Figure 2 for the other waveform diagram. $Fig. 2(b) shows the solenoid current when the battery is abnormal. Also lower than normal. Therefore, in the fuel injection device of the present embodiment, the solenoid current Is is detected and used as a judge in the battery state. That is, when the driving signal of the solenoid la becomes 〇N and the predetermined time Tr elapses, the solenoid current Is is detected by the solenoid current detecting circuit 15 as the solenoid current detecting means, and by The battery state determining means 8a compares the solenoid current with a predetermined value to determine the battery state. The microcomputer 8 transmits the determination result to the display lamp driving circuit 17, and causes the display lamp driving electric power to drive the battery state display 帛18. In this way, the battery status indicator light flashes or flashes to know the current battery status. Next, another fuel injection device of the present embodiment will be described. ° Generally, the internal resistance of the battery increases with deterioration, and the correlation with the deterioration of the battery is higher than the correlation between the open voltage and the deterioration. Therefore, by detecting the internal resistance of the battery, Battery status can be detected with better accuracy. & Therefore, after the solenoid drive signal becomes 0N and after the 〇 NK state passes 15 318531 1322224 = time Tr 'to the power supply detection circuit, the solid timing is the solenoid current detection circuit 15 two: also electric repeatedly ^ = Ls, and send the two signals to the microcomputer::: solenoid power., from this battery power and = battery status judgment ^ component value 'and will calculate the value with the predetermined base; = out the equivalent The value is judged to be a battery abnormality. In the case of the early value comparison, the excess of the base is not limited to the comparison of the current of the resistance component with the predetermined reference value, for example, the calculation of the electric quantity and the % and the solenoid current Is. In addition, the C===pulse width of the control unit 2 for correcting the fuel consumption of the fuel injection module j can be improved from the battery voltage in the present embodiment. The solenoid drive signal is changed to: electric circuit 4 circuit 15. The timing of measuring the solenoid current (that is, the timing of the current detection for the correction of the pulse width correction after the predetermined time two::=) is used to reduce the computational load of the microcomputer 8. The π is the same timing. As described above, the driving signal according to the embodiment becomes (10) and at 〇Χ, since the solenoid line current detecting means detects the solenoid = after a predetermined time, the solenoid is detected by the screw means. The state of the battery is displayed, and the result of the determination is displayed on the comparison of the display value, and the solenoid current in the battery shape is determined to determine that the battery is detected by the solenoid state with higher precision. It is also possible to detect the solenoid voltage by the battery voltage detecting means and the solenoid current detecting means to detect the solenoid after the driving signal of the solenoid is turned ON and the state of the ON state 318531 16 1322224 has elapsed for a predetermined time. Current, and the electric two-state determination means determines the battery state by comparing the calculated value calculated from the battery voltage and the solenoid current with a predetermined value, and performs the determination result on the display Z segment. It is obvious that the battery state can be judged based on the internal resistance of the battery, and the battery state can be judged with higher precision for battery deterioration. Therefore, it is possible to provide a battery abnormality that can be reliably displayed, and the engine is in a bad condition or stops rotating. The abnormality determination method of the fuel injection device and the fuel injection device that communicates the abnormality to the user before the failure occurs. In addition, the timing of detecting the solenoid current after a predetermined time has elapsed, and the fuel injection amount of the fuel injection module is increased. When the accuracy is detected and the detection timing of the solenoid current of the drive pulse width is corrected, the calculation load of the microcomputer is reduced, and the calculation speed is increased, so that it can be applied to a more engine. ~ (3rd embodiment) (3) The fuel injection device of the embodiment will be described. The configuration and the waveform diagram are the same as those of the first embodiment and the second embodiment of the first embodiment, and the description thereof is omitted. The state of the battery is determined, and the battery is detected while the solenoid is energized. Electricity: The part of the solenoid current is separated from the first embodiment and the second embodiment. Therefore, the following will be Or the second embodiment--the invention is different from the center. The 1, 1 mesh f is the time when the battery voltage and/or the solenoid current is detected, the schedule shown in Fig. 2(b). The length of time & the pre-318531 17 2 ΤΓ' is set from the time when the solenoid drive signal is turned ON to the time when it becomes 〇FF: the length of the moment: that is, immediately before it becomes 〇ff From the waveform diagram of Fig. 2, it can be seen that the difference between the normal time and the abnormal time becomes larger between the front and the middle of the 〇FF. By doing so, the battery voltage in the test cycle is minimized. The value near the time point (Μ), the accuracy of the battery state determination is improved. The detection of the previous moment can improve the detection of the finer. In addition, as described above, the solenoid is electrically interrupted.
時’依照通電脈衝寬度而設定判定值， 度。 如以上所述，依據本實施形態的發明，由於經過預定 時，後的電池電麗及/或螺線管電流之檢測時序，係設為螺 吕之驅動訊號變為〇FF之前一瞬間，因此正常時與異常 日可之電池電壓的差變大’而可更高精度地判斷電池狀.態。 •(第4實施形態） ^ 接著針對第4實施形態的燃料噴射裝置進行說明。全 φ體之構成及波形圖係與第i實施形態之第1圖及第2圖相 同故省略說明。 如第2圖（c)之電池電壓的波形圖所示，本實施形態， 係在下指令對螺線管通電時，以電源檢測電路Μ檢測螺線 官之驅動訊號為OFF時的電池電壓Vb〇與經過預定時間後 的電池電壓vbi，並藉由電池狀態判定手段8a，求出電壓 降低份△ Vb=VbO-Vbl，且與預定值比較而判定電池狀態。 除此之外與第1實施形態相同。 此方法可與燈光（light)等其他的電氣負荷狀態不相依 318531 18 1322224 地依螺線管驅動所導致的電壓降低來判定電池狀態，故判 疋精度更加提高。 如以上所述’依據本實施形態之發明，由於以電池電 壓檢測手段來檢測螺線管之驅動訊號為〇FF時的電池電 壓與螺線管之驅動訊號變為0N且在0N狀態下經過預定 時間後的電池電壓，且以電池狀態判定手段將檢測出的兩 電池電壓之差與預定值比較而判定電池狀態，並將判定結 果顯示於顯示手段，因此可去除螺線管非通電時之電池電 壓的變動之影響而判斷電池電壓之降低，故可更正確地判 斷電池狀態。 於刚述之第1至第4實施形態中，係針對具有當螺線 ^之驅動訊號剛變為卿後’將蓄積於螺線管的電力暫時 蓄積於電谷器且在下次螺線管之驅動訊號變為⑽時放電 .至螺線管的螺線管驅動電路，且螺線管驅動訊號變為⑽ 後的預定時間係設定為比電容器之放電完了時間長者進行 ，2明。本發明雖也可適用於不具有如上所述之螺線管驅動 '路的燃料嘴射裝置’但在具有螺線管驅動電路時，藉由 如上述設定’便可不受到電容器放電時補‘ 屋至螺線官之際的電壓變動之影響而檢測電池電壓， 更正確地判斷電池狀態。 【圖式簡單說明】 第1圖係本發明之第1 M + 置之構成I 44貫卿態的燃料噴射裝 第2圖⑷至⑷係本發明之第1至第4實施形態的_ 318531 19 1322224 管驅動訊號、螺線管電流和電池電壓的波形圖 【主要元件符號說明】 1 燃料喷射模組 •'la 螺線管 -· 2 控制單元 3 發電機 4 調節器 5 電池 ，6、11 二極體 7 電流檢測用電阻 8 微電腦 8a 電池狀態判定手段 9 螺線管驅動控制電路 10 螺線管驅動用FET 12 電容器 13 放電控制電路 14 放電控制用FET 15 螺線管電流檢測電路 16 電源檢測電路 17 顯示燈驅動電路 18 電池狀態顯示燈 20At the time, the judgment value and degree are set in accordance with the energization pulse width. As described above, according to the invention of the present embodiment, since the timing of detecting the battery charge and/or the solenoid current after the predetermined time passes, the timing of the drive signal of the screw is changed to 〇FF, The difference between the normal and the abnormal battery voltage becomes larger, and the battery state can be judged with higher precision. (Fourth Embodiment) Next, a fuel injection device according to a fourth embodiment will be described. The configuration and waveform diagram of the full φ body are the same as those of the first and second figures of the i-th embodiment, and the description thereof will be omitted. As shown in the waveform diagram of the battery voltage in Fig. 2(c), in the present embodiment, when the solenoid is energized by the lower command, the power source detecting circuit Μ detects the battery voltage Vb when the driving signal of the solenoid is OFF. The battery voltage vbi after a predetermined period of time elapses, and the battery state determination means 8a obtains the voltage drop portion ΔVb = VbO - Vb1, and compares with a predetermined value to determine the battery state. Other than this, it is the same as that of the first embodiment. This method can determine the battery state by the voltage drop caused by the solenoid drive, which is not dependent on other electrical load states such as light (318531 18 1322224), so the accuracy is further improved. According to the invention of the present embodiment, the battery voltage and the driving signal of the solenoid become 0N when the driving signal of the solenoid is detected by the battery voltage detecting means, and the predetermined time is 0N. The battery voltage after the time, and the battery state determination means compares the detected difference between the two battery voltages with a predetermined value to determine the battery state, and displays the determination result on the display means, thereby removing the battery when the solenoid is not energized. The influence of the fluctuation of the voltage determines the decrease in the battery voltage, so that the battery state can be more accurately determined. In the first to fourth embodiments, the electric power stored in the solenoid is temporarily accumulated in the electric grid after the driving signal of the spiral is changed to the second and the fourth embodiment. When the drive signal is changed to (10), the solenoid drive circuit is turned to the solenoid, and the predetermined time after the solenoid drive signal is changed to (10) is set to be longer than the discharge time of the capacitor. The present invention is also applicable to a fuel nozzle device that does not have the solenoid drive 'channel as described above. However, when the solenoid drive circuit is provided, it can be compensated by the capacitor when it is set as described above. The battery voltage is detected by the influence of the voltage fluctuation at the time of the spiral officer, and the battery state is more accurately determined. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a first embodiment of the present invention. FIG. 2(4) to (4) are the first to fourth embodiments of the present invention. 1322224 Waveform diagram of tube drive signal, solenoid current and battery voltage [Key component symbol description] 1 Fuel injection module • 'la solenoid - · 2 control unit 3 generator 4 regulator 5 battery, 6, 11 Pole body 7 Current detecting resistor 8 Microcomputer 8a Battery state judging means 9 Solenoid drive control circuit 10 Solenoid drive FET 12 Capacitor 13 Discharge control circuit 14 Discharge control FET 15 Solenoid current detection circuit 16 Power supply detection circuit 17 display light drive circuit 18 battery status display light 20
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