JPS58185975A - Electronic lead angle igniter - Google Patents
Electronic lead angle igniterInfo
- Publication number
- JPS58185975A JPS58185975A JP6869582A JP6869582A JPS58185975A JP S58185975 A JPS58185975 A JP S58185975A JP 6869582 A JP6869582 A JP 6869582A JP 6869582 A JP6869582 A JP 6869582A JP S58185975 A JPS58185975 A JP S58185975A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- triangle wave
- triangular wave
- point
- wave generating
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
- F02P3/04—Layout of circuits
- F02P3/045—Layout of circuits for control of the dwell or anti dwell time
- F02P3/0453—Opening or closing the primary coil circuit with semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、トランジスタ点火装置に係り、特に中低速に
おける通電時間を一定に制御し消費電流を少なくするに
適した電子進角点火装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transistor ignition device, and more particularly to an electronic advance ignition device suitable for controlling the energization time to a constant value at medium and low speeds and reducing current consumption.
従来性われている二つの三角波を用いて電子進角を行な
うトランジスタ点火装置の通電時間制御方法は、特許５
３−７５３４９号に示されている。A conventional energization time control method for a transistor ignition device that uses two triangular waves to electronically advance the angle is disclosed in Patent No. 5.
No. 3-75349.
しかしこの方法を２段進角特性を持つ負圧進角付、電子
進角点火装置に応用した場合、回転基準となる三角波が
２段折れのため、その三角波のピーク値を回転基準値と
している制御では、その値が、比例しなくなるため、通
電時間制御へ影響がでて、低速時通電時間が長くなり消
費を流を多くする欠点があった。However, when this method is applied to an electronic advance ignition system with negative pressure advance that has a two-stage advance characteristic, the triangular wave that serves as the rotation reference is broken in two stages, so the peak value of the triangular wave is used as the rotation reference value. In the control, the value is no longer proportional, which affects the control of the energization time, resulting in a longer energization time at low speeds and increased consumption.
本発明の目的は、消費電流の少ない電子進角点火装Ｔｉ
１ｔを提供することにある。An object of the present invention is to provide an electronic advance ignition system Ti that consumes less current.
The aim is to provide 1t.
本発明は、中低速における通電時間を一定に制御するこ
とにより消費電流を少なくしようというものである。す
なわち、回転数の基準となる三角しなくなる誤差の部分
は、２段折れ以降の時間に比例する事に着目し、２段折
れ以降の時間を検出する三角波を設けそのピーク値によ
り補正を行なう。The present invention aims to reduce current consumption by controlling the energization time at medium and low speeds to be constant. That is, focusing on the fact that the part of the error which is a reference for the number of revolutions and which is no longer triangular is proportional to the time after the second fold, a triangular wave is provided to detect the time after the second fold and correction is performed using the peak value of the triangular wave.
以下、本発明の実施例について説明する。Examples of the present invention will be described below.
第１図には、本発明の一実施例が示されている。FIG. 1 shows an embodiment of the invention.
図において、ｌはクランクシャフトに直結したロータで
、仏角巾に相当する凸部を有し、パルサー２と組み合せ
、最大進角位置、最小進角位置を検出する。３は波形整
形回路、４はフリップフロップ回路である。フリップフ
ロップ４の田号により、三角波（１）発生回路５、三角
波（２）発生回路９が動作を行なう。三角波（１）発生
回路５には、比較回路７、定電流値切換回路６が付加さ
れており、三角波（１）の電圧がＶｎになった時定電流
値（三角波発生用コンデンサチャージ電流）を切り換え
て勾配を変化させる。三角波（１）の出力は分圧回路８
により分圧され比較器１０に入る比較器１０で三角波（
２）、圧力側（財）信号（平滑増幅回路１３の出力）と
比較して、点火位置信号を発生する。圧力制御信号は、
インテークマニホールド圧力を検出する圧力センサ１２
の信号を平滑増幅回路１３を通した信号である。分圧回
路８を用いるのは、始動時等の極低速で、三角波が電源
電圧で飽和した時、誤動作しないようにするために接続
されている。In the figure, l is a rotor directly connected to the crankshaft, which has a convex portion corresponding to the width of the rotor angle, and is combined with a pulser 2 to detect the maximum advance angle position and the minimum advance angle position. 3 is a waveform shaping circuit, and 4 is a flip-flop circuit. The triangular wave (1) generating circuit 5 and the triangular wave (2) generating circuit 9 operate according to the flag of the flip-flop 4. A comparator circuit 7 and a constant current value switching circuit 6 are added to the triangular wave (1) generation circuit 5, and the constant current value (capacitor charging current for triangular wave generation) is determined when the voltage of the triangular wave (1) reaches Vn. Switch to change the slope. The output of the triangular wave (1) is the voltage divider circuit 8
A triangular wave (
2) Generate an ignition position signal by comparing it with the pressure side signal (output of the smoothing amplifier circuit 13). The pressure control signal is
Pressure sensor 12 that detects intake manifold pressure
This is the signal obtained by passing the signal through the smoothing amplifier circuit 13. The voltage divider circuit 8 is connected to prevent malfunction when the triangular wave is saturated with the power supply voltage at extremely low speeds such as during startup.
比較回路７の出力とフリップフロップ回路４の出力をＡ
ＮＤ回路１４を通す事により１１の時間を検出し、三角
波（３）の発生回路１５を駆動する。The output of the comparison circuit 7 and the output of the flip-flop circuit 4 are
The time 11 is detected by passing it through the ND circuit 14, and the triangular wave (3) generating circuit 15 is driven.
また比較器７の出力は、三角波（３）のリセット信号と
しても動作させている。三角波（２）、三角波（３）。The output of the comparator 7 is also operated as a triangular wave (3) reset signal. Triangle wave (2), triangle wave (3).
圧力信号をＯＰＡＭＰ１９を通し加減算し、ハイレベル
カット回路２０を通し比較回路２１で三角波（１）と比
較して通電開始位置を決定する。The pressure signal is passed through an OPAMP 19 for addition and subtraction, and is passed through a high level cut circuit 20 and compared with a triangular wave (1) in a comparison circuit 21 to determine the energization start position.
ＯＰＡＭＰ１９では、ｋ＋ （三角波（２）） ｋ
２（三角波（３））十ｋａ（圧力信号） （Ｊ １ ｋ
２１に３は定数）の演算を行なう。ここで三角波（３）
を三角波（１）に対し加算せず、三角波（２）に対して
減算するのは、比較器２１の＋側入力に対し一体入力で
補正させるためで、原理的には同一であるが、加算では
、加算後の値が、電源電圧で飽和しやすくなるため、減
算処理で補正させているものである。圧力信号もＯＰＡ
ＭＰ回路１９に入るのは、圧力信号で点火位置が進角し
た時、通電時間が短くなるのを防止するためである。In OPAMP19, k+ (triangular wave (2)) k
2 (triangular wave (3)) 10 ka (pressure signal) (J 1 k
In 21, 3 is a constant). Here the triangle wave (3)
The reason why is not added to the triangular wave (1) but subtracted from the triangular wave (2) is to correct the + side input of the comparator 21 with the integrated input. In this case, since the value after addition is likely to be saturated by the power supply voltage, it is corrected by subtraction processing. Pressure signal is also OPA
The purpose of entering the MP circuit 19 is to prevent the energization time from becoming short when the ignition position is advanced by the pressure signal.
点火位置信号、通電開始信号は、論理回路１１で合成さ
れ、パワートランジスタ１６、イグニッションコイル１
７、点火プラグ１８を動作させ、点火動作を行なう。論
理回路１１にフリップフロップ４の信号が入力されるの
は、低速時各三角波が電源電圧に飽和し点火信号、通電
開始信号が発生しなくなった時、フリップフロップの出
力で直接点火動作を行なわせるようにするためである。The ignition position signal and the energization start signal are synthesized by the logic circuit 11, and are sent to the power transistor 16 and the ignition coil 1.
7. Operate the spark plug 18 to perform the ignition operation. The reason why the signal from the flip-flop 4 is input to the logic circuit 11 is that at low speed, when each triangular wave is saturated with the power supply voltage and the ignition signal and energization start signal are no longer generated, the output of the flip-flop is used to directly perform the ignition operation. This is to ensure that.
ハイレベルカット回路２０ｉｔ、低速時ＯＰ ＡＭＰ１
９の出力が電源電圧で飽和した時、比較器２１の一側入
力を電源電圧以下にして誤動作を防止させるために接続
されている。High level cut circuit 20it, OP AMP1 at low speed
When the output of the comparator 9 is saturated with the power supply voltage, the input on one side of the comparator 21 is set below the power supply voltage to prevent malfunction.
本構成により中低速時、通電時間を特願５３−７５３４
９と同等に制御でき、消費′電流の少ない、かつ小型の
点火装置を提供する事ができる。With this configuration, the energization time at medium and low speeds is reduced according to Patent Application No. 53-7534.
It is possible to provide a compact ignition device that can be controlled in the same manner as No. 9, has low current consumption, and has a small size.
第２図（ａ）には、本実施例に用いる三角波（１）の波
形が示されている。Ｐｌは最大進角点、Ｐ２は最小進角
点である。Ｐｌで前の値をリセットし上昇を開始し、一
定電圧■８に達した時勾配が変化し、Ｐ２まで上昇を続
ける。Ｐ２以降ピーク値Ｖ１を保持していく。ここで２
段折れしない場合を想定して、ＰｌからＶＢに達する点
を延長し、Ｐ２の時の値をｋ２とすると、ｋ２の値は１
／Ｎに比例する事になる。％８５３−７５３４９に示す
方法により通電時間を制御するためには、ｋ２に相当す
る電圧が必要となり、■！で演算すると低速で通電時間
が長くなり、消費電流が増大し、パワートランジスタ、
イグニッションコイルの負担が大きくなる欠点がある。FIG. 2(a) shows the waveform of the triangular wave (1) used in this embodiment. Pl is the maximum advance point, and P2 is the minimum advance point. The previous value is reset with Pl and the voltage starts to rise, and when it reaches a constant voltage of 8, the slope changes and continues to rise until P2. After P2, the peak value V1 is maintained. Here 2
Assuming that there is no step folding, if we extend the point from Pl to VB and take the value at P2 as k2, the value of k2 is 1.
/N. In order to control the energization time using the method shown in %853-75349, a voltage equivalent to k2 is required, and ■! If you calculate with
This has the disadvantage of increasing the burden on the ignition coil.
ｋ２とｋ１の差は、Ｖｍに達して勾配が変化しはじめて
から、Ｐ２に達するまでの時間１１に比例するため、第
２図（ｂ）に示す三角波（３）を作る、三角波（３）は
、ｔＩの間上昇を続けＰ２からＰｌの間ピーク値を保持
し、Ｐｌから三角波（１）がｋ８に達する間にリセット
される波形である。第１図（Ｃ）は三角波（２）の波形
である。三角波（３）のピーク値をｋ３とすると、
ｋ２ ＝Ｖｌ＋ ｋ Ｖａ （ｋ ：定数）とでき
、ｋ２がなくてもｋ１十にｋ３を用いる事により、特願
５３−７５３４９に示す通電時間制御ができ、低速時の
通電時間の増大を防止できる。The difference between k2 and k1 is proportional to the time 11 from when Vm is reached and the slope begins to change until it reaches P2, so the triangular wave (3) that creates the triangular wave (3) shown in Figure 2 (b) is , tI, holds the peak value from P2 to Pl, and is reset while the triangular wave (1) reaches k8 from Pl. FIG. 1(C) shows the waveform of the triangular wave (2). If the peak value of the triangular wave (3) is k3, then k2 = Vl + k Va (k: constant) can be obtained, and even without k2, by using k3 for k1, the energization time control shown in Patent Application No. 53-75349 can be performed. This prevents an increase in the energizing time at low speeds.
Ｌ７たがって、本実施例によれば、中低速時通電時間の
異常に増大する事を防止できるため、消費筒４流を低減
できる効果を持つ。またこれによりパワートランジスタ
、イグニッションコイルの発熱を少なくでき点火装置を
小形化できる効果がある。L7 Therefore, according to this embodiment, it is possible to prevent the energization time at medium and low speeds from increasing abnormally, and therefore, it is possible to reduce the number of consumption cylinders 4. This also has the effect of reducing heat generation in the power transistor and ignition coil, and making the ignition device more compact.
以上説明したように、本発明によれば、消費電流を少な
くすることができる。As described above, according to the present invention, current consumption can be reduced.
第１図は本発明の実施例を示すブロック図、第２図（ａ
）（ｂ）（Ｃ）はそれぞれ第１図図示三角波（１）（２
）（３）の波形を示す図である。
１・・・ロータ、２・・・パルサー、３・・・波形整形
回路、４・・・フリップフロップ回路、５・・・三角波
（１）発生回路、６・・・定酸流値切換回路、７・・・
比較回路、８・・・分圧回路、９・・・三角波（２）発
生回路、１０・・・比較回路、１１・・・論理回路、１
２・・・圧力センサ、１３・・・平滑増幅回路、１４・
・・ＡＮＤ回路、１５・・・三角波（３）発生回路、１
６・・・パワートランジスタ、１７・・・イグニッショ
ンコイル、１８・・・点火プラグ、１９・・・ＯＰ、Ａ
ＭＰ、２０・・・・・イレベルカット回路、２１・・・
比較回路。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 (a
), (b), and (C) are the triangular waves (1) and (2) shown in Figure 1, respectively.
)(3) is a diagram showing the waveform of (3). DESCRIPTION OF SYMBOLS 1... Rotor, 2... Pulser, 3... Waveform shaping circuit, 4... Flip-flop circuit, 5... Triangular wave (1) generation circuit, 6... Constant acid flow value switching circuit, 7...
Comparison circuit, 8... Voltage dividing circuit, 9... Triangular wave (2) generation circuit, 10... Comparison circuit, 11... Logic circuit, 1
2... Pressure sensor, 13... Smoothing amplifier circuit, 14...
...AND circuit, 15...Triangular wave (3) generation circuit, 1
6... Power transistor, 17... Ignition coil, 18... Spark plug, 19... OP, A
MP, 20... Irlevel cut circuit, 21...
Comparison circuit.
Claims (1)
し最小進角点で積分を終了し次の最大進角点までその値
を保持する第１の三角波発生回路と、最小進角点から積
分を開始し、最大進角点で積分を終了し次の最小進角点
までその値を保持する第２の三角波発生回路とを有する
電子進角点火装置において、上記第１の三角波発生回路
において形成される三角波の傾斜の２段目の点から最小
進角点までの時間を検出し、該啜時間の間積分し、該最
小進角点から最大進角点の間積分値を保持する第３の三
角波発生回路を設けたことを％徴とする電子進角点火装
置。1. A first triangular wave generation circuit that starts integration from the maximum significant angle point, changes the slope in two stages, finishes integration at the minimum advance point, and holds that value until the next maximum advance point; In an electronic advance angle ignition device having a second triangular wave generation circuit that starts integration from a corner point, ends integration at a maximum advance point, and holds the value until the next minimum advance point, the first triangular wave Detect the time from the second stage point of the slope of the triangular wave formed in the generation circuit to the minimum advance point, integrate during this time, and calculate the integral value between the minimum advance point and the maximum advance point. An electronic advance ignition device characterized by the provision of a third triangular wave generating circuit for holding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6869582A JPS58185975A (en) | 1982-04-26 | 1982-04-26 | Electronic lead angle igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6869582A JPS58185975A (en) | 1982-04-26 | 1982-04-26 | Electronic lead angle igniter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58185975A true JPS58185975A (en) | 1983-10-29 |
Family
ID=13381149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6869582A Pending JPS58185975A (en) | 1982-04-26 | 1982-04-26 | Electronic lead angle igniter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58185975A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6390671A (en) * | 1986-10-06 | 1988-04-21 | Kokusan Denki Co Ltd | Ignition device for internal combustion engine |
| JPS63147972A (en) * | 1986-12-10 | 1988-06-20 | Kokusan Denki Co Ltd | Ignition device for internal combustion engine |
| JPS6473170A (en) * | 1987-09-14 | 1989-03-17 | Toyo Denso Kk | Engine ignition control apparatus |
-
1982
- 1982-04-26 JP JP6869582A patent/JPS58185975A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6390671A (en) * | 1986-10-06 | 1988-04-21 | Kokusan Denki Co Ltd | Ignition device for internal combustion engine |
| JPS63147972A (en) * | 1986-12-10 | 1988-06-20 | Kokusan Denki Co Ltd | Ignition device for internal combustion engine |
| JPS6473170A (en) * | 1987-09-14 | 1989-03-17 | Toyo Denso Kk | Engine ignition control apparatus |
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