JPS63162952A - Combustion state control device for internal combustion engine - Google Patents
Combustion state control device for internal combustion engineInfo
- Publication number
- JPS63162952A JPS63162952A JP30811386A JP30811386A JPS63162952A JP S63162952 A JPS63162952 A JP S63162952A JP 30811386 A JP30811386 A JP 30811386A JP 30811386 A JP30811386 A JP 30811386A JP S63162952 A JPS63162952 A JP S63162952A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- combustion state
- state
- internal combustion
- air
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 134
- 239000000446 fuel Substances 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 abstract description 11
- 239000007924 injection Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、内燃機関の燃焼状態制御装置に係り、特に
、内燃機関の燃焼室内の燃焼状態を直接かつ瞬時に検出
し燃焼状態制御因子として例えば空燃比等を制御するこ
とにより燃焼状態を広範囲に遅れを生じることなく制御
し得て内燃機関の運転状態に応じた所望の燃焼状態を得
ることのできる内燃機関の燃焼状態制御装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a combustion state control device for an internal combustion engine, and in particular, to a device for directly and instantaneously detecting the combustion state in the combustion chamber of an internal combustion engine and using it as a combustion state control factor. The present invention relates to a combustion state control device for an internal combustion engine that can control the combustion state over a wide range without delay by controlling the air-fuel ratio, etc., and can obtain a desired combustion state depending on the operating state of the internal combustion engine.
車両用内燃機関は、車両走行速度即ち機関回転速度及び
負荷の変動が極めて大きく、この両変動要素を組合せた
各種の、運転状態において、低燃料消費率、有害成分の
少ない排気ガス等の性能が要請される。このため、各種
の運転状態において所望の燃焼状態を得べく蝙運転パラ
メータを検出し燃焼状態制御因子である例えば空燃比等
を適正にすることが必要である。このような空燃比等の
燃焼状態制御因子を制御するものとして、例えば特公昭
４７−４０２２５号公報等に開示されて゛いる。Internal combustion engines for vehicles have extremely large fluctuations in vehicle running speed, that is, engine rotational speed, and load, and under various operating conditions that combine these two variables, performance such as low fuel consumption and exhaust gas with few harmful components is maintained. requested. Therefore, in order to obtain a desired combustion state in various operating states, it is necessary to detect operating parameters and to optimize combustion state control factors such as the air-fuel ratio. For example, Japanese Patent Publication No. 47-40225 discloses a method for controlling combustion state control factors such as air-fuel ratio.
この公報に開示のものは、排気有害成分を低減するため
に、各種センサにより得た絞り弁の開度や冷却水温度、
吸入空気温度、空気圧、排気成分値等から機関の各運転
状態において所望の燃焼状態を得べく空気過剰率λが一
定の設定値になるように調整機器により燃焼状態制御因
子として空燃比や点火時期を制御する方式のものである
。What is disclosed in this publication is the opening degree of the throttle valve and the temperature of the cooling water obtained by various sensors, in order to reduce harmful exhaust gas components.
The air-fuel ratio and ignition timing are set as combustion state control factors using adjustment equipment so that the excess air ratio λ is at a constant set value in order to obtain the desired combustion state in each operating state of the engine based on intake air temperature, air pressure, exhaust component values, etc. This is a system that controls the
しかしながら、従来のものでは、内燃機関やセンサ、調
整機器等の製造上の誤差によるバラツキや経年変化によ
る劣化等を生じた場合に対応できない問題があった。ま
た、従来のものは、燃焼室内の燃焼状態を直接検出する
ものではなく、燃焼室外に設けた各種センサの検出値か
ら所望の燃焼状態を得べく空燃比等を制御しており、し
かも、センサの応答性が遅いので制御に遅れが生じると
いう問題があった。However, conventional systems have the problem of not being able to deal with variations due to manufacturing errors in internal combustion engines, sensors, adjustment equipment, etc., and deterioration due to aging. In addition, conventional systems do not directly detect the combustion state inside the combustion chamber, but rather control the air-fuel ratio, etc. to obtain the desired combustion state from the detection values of various sensors installed outside the combustion chamber. The problem was that the responsiveness of the controller was slow, resulting in a delay in control.
さらに、近時、排気ガス中の成分を検知する排気センサ
として０２センサを排気通路に設け、この０２センサか
ら入力する信号により供給燃料量や供給空気量を制御し
、運転状態に対応して常に最良の燃焼状態を得べき所望
の空燃比に収束させることにより燃料消費率や排気有害
成分の低減を図るフィードバック方゛式の制御装置等が
提案され、前述問題を解消しつつある。しかし、０２セ
ンサは応答性に問題があり、また、ｏ２センサは燃焼後
の排気ガス中の酸素濃度を検出するものなのでその特性
から過剰空気率ａ−１の状態しか検出できず制御範囲が
挾い問題がある。さらに１．ノッキング等を生じるよう
な異常な燃焼荻態を検出し得ないため、このような異常
燃焼状態において空燃比を制御することにより所望の燃
焼状態を得るということができない不都合があった。Furthermore, recently, an 02 sensor has been installed in the exhaust passage as an exhaust sensor that detects components in exhaust gas, and the amount of fuel supplied and the amount of air supplied are controlled by the signals input from this 02 sensor, and the amount of supplied fuel and air is constantly adjusted according to the operating state. Feedback type control devices have been proposed that reduce fuel consumption and harmful exhaust components by converging to a desired air-fuel ratio that provides the best combustion conditions, and the above-mentioned problems are being solved. However, the 02 sensor has a problem with responsiveness, and since the 02 sensor detects the oxygen concentration in the exhaust gas after combustion, its characteristics mean that it can only detect the state of excess air ratio a-1, which limits the control range. There is a problem. Furthermore 1. Since it is not possible to detect an abnormal combustion state that causes knocking or the like, there is a problem in that it is not possible to obtain a desired combustion state by controlling the air-fuel ratio in such an abnormal combustion state.
そこで、この発明の目的は、内燃機関の燃焼室内の燃焼
状態を直接かつ瞬時に検出し燃焼状態制御因子として例
えば空燃比を制御することにより燃焼状態を広範囲に遅
れを生じることなく制御し得て内燃機関の運転状態に応
じた所望の燃焼状態を得ることのできる内燃機関の燃焼
状態制御装置を実現することにある。Therefore, an object of the present invention is to directly and instantaneously detect the combustion state in the combustion chamber of an internal combustion engine and to control the combustion state over a wide range without delay by controlling the air-fuel ratio as a combustion state control factor. An object of the present invention is to realize a combustion state control device for an internal combustion engine that can obtain a desired combustion state depending on the operating state of the internal combustion engine.
この目的を達成するためにこの発明は、内燃機関の燃焼
室に臨ませて燃焼状態検出手段を設け、この燃焼状態検
出手段から入力する信号により前記内燃機関の運転状態
に応じ所望の燃焼状態を得べく燃焼状態制御因子を制御
する制御手段を設けたことを特徴とする。In order to achieve this object, the present invention provides a combustion state detection means facing the combustion chamber of an internal combustion engine, and detects a desired combustion state according to the operating state of the internal combustion engine by a signal inputted from the combustion state detection means. Preferably, the present invention is characterized in that a control means for controlling combustion state control factors is provided.
この発明の構成によれば、内燃機関の燃焼室に臨ませて
燃焼状態検出手段を設けたことにより燃焼状態を直接か
つ瞬時に検出し得て、この燃焼状態検出手段から入力す
る信号によって燃焼状態制御因子として例えば空燃比を
制御することにより、燃焼状態を広範囲に遅れを生じる
ことなく制御し得る。これにより、所望の燃焼状態を得
ることができる。According to the structure of the present invention, by providing the combustion state detection means facing the combustion chamber of the internal combustion engine, the combustion state can be directly and instantaneously detected, and the combustion state can be detected by the signal input from the combustion state detection means. By controlling, for example, the air-fuel ratio as a control factor, the combustion state can be controlled over a wide range without delay. Thereby, a desired combustion state can be obtained.
次にこの発明の実施例を図に基づいて詳細に説明する。 Next, embodiments of the present invention will be described in detail based on the drawings.
第１〜６図は、この発明の実施例を示すものである。第
１図において、２は内燃機関、４は燃焼室、６は噴射弁
、８は点火栓、１０は絞り弁、１２はエアクリーナであ
る。前記内燃機関２の燃焼室４に連通ずる吸気通路１４
に設けた噴射弁６は、燃料を貯留する燃料タンク１６と
燃料通路１８により連通しており、この燃料通路１８の
途中には燃料を圧送する燃料ポンプ２０を介設しである
。この燃料ポンプ２０は、後述制御回路３８によって動
作を制御される。また、噴射弁６に供給する燃料の圧力
を所定に維持するた゛めに、前記燃料通路１８と燃料タ
ンク１６とを戻り通路２２によって連通し、この戻り通
路２２の途中にレギュレータ２４を介設している。1 to 6 show embodiments of this invention. In FIG. 1, 2 is an internal combustion engine, 4 is a combustion chamber, 6 is an injection valve, 8 is a spark plug, 10 is a throttle valve, and 12 is an air cleaner. An intake passage 14 communicating with the combustion chamber 4 of the internal combustion engine 2
The injection valve 6 provided in the fuel injection valve 6 communicates with a fuel tank 16 that stores fuel through a fuel passage 18, and a fuel pump 20 that pumps fuel is interposed in the middle of the fuel passage 18. The operation of this fuel pump 20 is controlled by a control circuit 38, which will be described later. Further, in order to maintain the pressure of the fuel supplied to the injection valve 6 at a predetermined level, the fuel passage 18 and the fuel tank 16 are communicated through a return passage 22, and a regulator 24 is interposed in the middle of the return passage 22. There is.
前記噴射弁６により供給される燃料を燃焼する前記内燃
機関２は燃焼室４に臨ませて燃焼室４内の燃焼状態を検
出する燃焼状態検出手段たる光エネルギセンサ２６を設
けである。この光エネルギセンサ２６は、燃焼室４内の
燃焼による各遊離基（Ｃ２、ＯＨ，Ｃｏ）の光の強さを
検出するものである。The internal combustion engine 2 that burns fuel supplied by the injection valve 6 is provided with a light energy sensor 26 facing the combustion chamber 4 and serving as a combustion state detection means for detecting the combustion state within the combustion chamber 4. This optical energy sensor 26 detects the intensity of light of each free radical (C2, OH, Co) caused by combustion within the combustion chamber 4.
ところで、内燃機関２の燃焼室４内の燃焼状態を検出す
る場合に、空気と燃料との当量比（空燃比）いいかえれ
ば空気過剰率：λに燃焼火炎の特定波長の光の強さ即ち
光エネルギが太き（関与していることが明らかになった
。そこで、第４図に示す如く感度特性の異なる光エネル
ギを電気エネルギに変換するフォトダイオード等の受光
素子■、■、■により、燃焼火炎の光の強さを検出した
。By the way, when detecting the combustion state in the combustion chamber 4 of the internal combustion engine 2, the equivalence ratio of air and fuel (air-fuel ratio), in other words, the excess air ratio: Therefore, as shown in Figure 4, light-receiving elements such as photodiodes that convert light energy with different sensitivity characteristics into electrical energy The intensity of the flame light was detected.
この受光素子の出力である短絡電流１ｓｃは、■ｓｃ＝
αＥｖ （ａ：定数、Ｅｖ：照度）より照度に比例する
ものである。この結果第５図に示す如く■の特性を有す
る受光素子が当量比に直接的に対応することが判明した
。従って、この特性を利用して、第６図に示す如く受光
素子の信号を処理して取出し、内燃機関２の燃焼室４内
の燃焼火炎の特定波長光のエネルギを検出することによ
り、燃焼状態として燃焼室４内の空燃比を０２センサを
必要とすることなく直接かつ瞬時に検出することができ
るものである。このため、この検出値より空燃比を制御
することが可能であり、また、点火時期を制御すること
も可能である。さらに、異常な燃焼状態においては、通
常と異なった火炎色となる。このため、ノックセンサを
要することなくノッキング等を生じるような異常燃焼状
態を検出することが可能である。The short circuit current 1sc which is the output of this light receiving element is ■sc=
αEv (a: constant, Ev: illuminance) is proportional to illuminance. As a result, as shown in FIG. 5, it was found that the light receiving element having the characteristic (3) directly corresponds to the equivalence ratio. Therefore, by utilizing this characteristic, the signal of the light receiving element is processed and extracted as shown in FIG. 6, and the energy of the specific wavelength light of the combustion flame in the combustion chamber 4 of the internal combustion engine 2 is detected. As a result, the air-fuel ratio within the combustion chamber 4 can be detected directly and instantaneously without the need for an 02 sensor. Therefore, it is possible to control the air-fuel ratio based on this detected value, and it is also possible to control the ignition timing. Furthermore, under abnormal combustion conditions, the flame color will be different from normal. Therefore, it is possible to detect an abnormal combustion state that causes knocking or the like without requiring a knock sensor.
そこで、燃焼室４内の燃焼状態を検出するために、第２
図に示す如く、一端を燃焼室４内に臨ませるべく露出さ
せた石英等からなる導光体２８の他端に光エネルギを電
気エネルギに変換するフォトダイオード等からなる受光
素子３０を対向配設し、これら導光体２８、受光素子３
０とともにリード線３２を外殻たる被包体３４により被
包して光エネルギセンサ２６を構成する。この先エネル
ギセンサ２６は、導光体２８の露出した端部を燃焼室４
内に臨ませて内燃機関２に装着される。これにより、光
エネルギセンサ２６は燃焼火炎の光を導光体２８により
受光素子３０に導き燃焼室４内の燃焼状態として燃焼火
炎の特定波長光エネルギを受光素子３０により直接かつ
瞬時に検出し、電気エネルギに変換して次段に出力する
。Therefore, in order to detect the combustion state in the combustion chamber 4, a second
As shown in the figure, a light-receiving element 30 made of a photodiode or the like that converts light energy into electrical energy is disposed opposite to the other end of a light guide 28 made of quartz or the like with one end exposed so as to face the inside of the combustion chamber 4. However, these light guide body 28 and light receiving element 3
The optical energy sensor 26 is constructed by enclosing the lead wire 32 and the lead wire 32 with the enveloping body 34 which is an outer shell. From this point on, the energy sensor 26 connects the exposed end of the light guide 28 to the combustion chamber 4.
It is attached to the internal combustion engine 2 so as to face inside. As a result, the optical energy sensor 26 directs the light of the combustion flame to the light receiving element 30 through the light guide 28, and directly and instantaneously detects the light energy of a specific wavelength of the combustion flame as the combustion state in the combustion chamber 4 by the light receiving element 30. Converts it into electrical energy and outputs it to the next stage.
光エネルギセンサ２６の出力する信号は、信号処理回路
３６を経て制御回路３８に入力する。制御回路３８には
、また運転状態を検出すべく機関回転数、吸気温度、冷
却水温度等の機関温度等の信号を入力する。これにより
、制御回路３８は、機関運転状態に応じ所望の燃焼状態
を得べく燃焼状態制御因子として空燃比と点火時期とを
制御する。この実施例においては、噴射弁６の動作制御
により空燃比を制御するとともに、点火栓８に飛火させ
る点火コイル４０への給電制御により点火時期を制御す
る。The signal output from the optical energy sensor 26 is input to the control circuit 38 via the signal processing circuit 36. The control circuit 38 also receives signals such as engine speed, intake air temperature, engine temperature such as cooling water temperature, etc., in order to detect the operating state. Thereby, the control circuit 38 controls the air-fuel ratio and ignition timing as combustion state control factors in order to obtain a desired combustion state according to the engine operating state. In this embodiment, the air-fuel ratio is controlled by controlling the operation of the injection valve 6, and the ignition timing is controlled by controlling the power supply to the ignition coil 40 that causes the spark plug 8 to spark.
即ち、第３図に示す如く、制御回路３８は目標状態にな
るように、入力する各種信号より噴射量と点火時期とを
算出し、噴射弁６を動作制御して所要の空燃比になるよ
うに燃料を噴射するとともに点火コイル４０への給電を
制御して所要の点火時期になるように点火栓８に飛火さ
せ、燃焼させる。この燃焼室４内の燃焼状態として燃焼
火炎の特定波長光エネルギを光エネルギセンサ２６によ
り検出して制御回路３Ｂに入力し、前記目標状態になる
ように、前述の如く噴射弁６を動作制御し点火コイル４
０への給電をフィードバック制御する。これにより、内
燃機関２の運転状態に応じた所望の燃焼状態を得ること
ができるものである。That is, as shown in FIG. 3, the control circuit 38 calculates the injection amount and ignition timing from various input signals to achieve the target state, and controls the operation of the injection valve 6 to achieve the desired air-fuel ratio. At the same time, the fuel is injected and the power supply to the ignition coil 40 is controlled to cause the ignition plug 8 to spark and burn at the required ignition timing. As the combustion state in the combustion chamber 4, the optical energy of a specific wavelength of the combustion flame is detected by the optical energy sensor 26 and inputted to the control circuit 3B, and the operation of the injection valve 6 is controlled as described above so as to achieve the target state. ignition coil 4
Feedback control of power supply to 0 is performed. Thereby, it is possible to obtain a desired combustion state depending on the operating state of the internal combustion engine 2.
このように、燃焼室４に臨ませて燃箋火炎の特定波長光
エネルギを検出する光エネルギセンサ２６を設けたこと
により、燃焼状態として空燃比を直接かつ瞬時に検出す
ることができ、この検出する信号を制御回路３８に入力
し嫡燃比や点火時期を制御することにより、燃焼状態を
広範囲に遅れを生じることなく制御することができるも
のである。これにより、内燃機関２の運転状態に応じた
所望の燃焼状態を得ることができる。また、従来の０２
センサと相違して空燃比のみならず点火時期をも制御可
能であるとともにノッキング等を生じるような異常な燃
焼状態をも検出することができ、０２センサやノックセ
ンサが不要になる。In this way, by providing the optical energy sensor 26 that faces the combustion chamber 4 and detects the light energy of a specific wavelength of the fuel flame, the air-fuel ratio can be directly and instantaneously detected as the combustion state. By inputting the signal to the control circuit 38 and controlling the direct fuel ratio and ignition timing, the combustion state can be controlled over a wide range without delay. Thereby, a desired combustion state can be obtained depending on the operating state of the internal combustion engine 2. In addition, the conventional 02
Unlike a sensor, it is possible to control not only the air-fuel ratio but also the ignition timing, and it is also possible to detect abnormal combustion conditions such as knocking, eliminating the need for an 02 sensor or a knock sensor.
このようにこの発明によれば、内燃機関の燃焼室に臨ま
せて燃焼状態検出手段を設けたことにより、燃焼状態を
直接かつ瞬時に検出することができる。また、この燃焼
状態検出手段から入力する信号によって燃焼状態制御因
子として例えば空燃比等を制御することにより、燃焼状
態を広範囲に遅れを生じることなく制御することができ
る。これによって運転状態に応じた所望の燃焼状態を得
ることができる。As described above, according to the present invention, by providing the combustion state detection means facing the combustion chamber of the internal combustion engine, the combustion state can be directly and instantaneously detected. Furthermore, by controlling, for example, the air-fuel ratio as a combustion state control factor using a signal input from the combustion state detection means, the combustion state can be controlled over a wide range without delay. This makes it possible to obtain a desired combustion state depending on the operating state.
また、従来の０２センサと相違して空燃比のみならず、
点火時期をも制御することが可能であるとともにノンキ
ング等を生じる異常な燃焼状態をも検出することができ
、０２センサやノックセンサを不要とすることができる
。Also, unlike the conventional 02 sensor, not only the air-fuel ratio but also the
It is possible to control the ignition timing and also to detect abnormal combustion conditions such as non-king, making it possible to eliminate the need for an 02 sensor or a knock sensor.
第１〜６図はこの発明の実施例を示し、第１図は空燃比
制御装置の概略構成図、第２図は光エネルギセンサの断
面図、第３図は制御ブロック図、第４図は光エネルギセ
ンサの相対感度と波長との関係を示す図、第５図は光エ
ネルギセンサの出力と当量比（空燃比）との関係を示す
図、第６図は信号処理回路を示す図である。
図において、２は内燃機関、４は燃焼室、６は噴射弁、
８は点火栓、１０は絞り弁、２６は光エネルギセンサ、
２８は導光体、３０は受光素子、３２はリード栓、３４
は被包体、３６は信号処理回路、３８は制御回路である
。
特許出願人 鈴木自動車工業株式会社代理人 弁
理士 西 郷 義 美
第１図
第２図
第３図
第４図
・ル（６ヒ（ｎｍ〕
第５図
第６図1 to 6 show embodiments of the present invention, FIG. 1 is a schematic configuration diagram of an air-fuel ratio control device, FIG. 2 is a sectional view of an optical energy sensor, FIG. 3 is a control block diagram, and FIG. FIG. 5 is a diagram showing the relationship between the relative sensitivity of the optical energy sensor and the wavelength, FIG. 5 is a diagram showing the relationship between the output of the optical energy sensor and the equivalence ratio (air-fuel ratio), and FIG. 6 is a diagram showing the signal processing circuit. . In the figure, 2 is an internal combustion engine, 4 is a combustion chamber, 6 is an injection valve,
8 is a spark plug, 10 is a throttle valve, 26 is a light energy sensor,
28 is a light guide, 30 is a light receiving element, 32 is a lead plug, 34
36 is a signal processing circuit, and 38 is a control circuit. Patent Applicant Suzuki Motor Co., Ltd. Representative Patent Attorney Yoshimi Nishigo Figure 1 Figure 2 Figure 3 Figure 4 (6hi (nm) Figure 5 Figure 6
Claims (1)
け、この燃焼状態検出手段から入力する信号により前記
内燃機関の運転状態に応じ所望の燃焼状態を得べく燃焼
状態制御因子を制御する制御手段を設けたことを特徴と
する内燃機関の燃焼状態制御装置。 ２、内燃機関の燃焼室に臨ませて燃焼火炎の特定波長光
エネルギを検出する光エネルギセンサを設け、この光エ
ネルギセンサから入力する信号により前記内燃機関の運
転状態に応じ所望の燃焼状態を得べく燃焼状態制御因子
として空燃比と点火時期とを制御する制御回路を設けた
ことを特徴とする特許請求の範囲第１項記載の内燃機関
の燃焼状態制御装置。[Scope of Claims] 1. Combustion state detection means is provided facing the combustion chamber of the internal combustion engine, and a signal input from the combustion state detection means is used to detect combustion in order to obtain a desired combustion state according to the operating state of the internal combustion engine. A combustion state control device for an internal combustion engine, comprising a control means for controlling state control factors. 2. A light energy sensor is provided facing the combustion chamber of the internal combustion engine to detect the light energy of a specific wavelength of the combustion flame, and a desired combustion state is obtained according to the operating state of the internal combustion engine using a signal input from the light energy sensor. 2. The combustion state control device for an internal combustion engine according to claim 1, further comprising a control circuit for controlling an air-fuel ratio and ignition timing as combustion state control factors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30811386A JPS63162952A (en) | 1986-12-26 | 1986-12-26 | Combustion state control device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30811386A JPS63162952A (en) | 1986-12-26 | 1986-12-26 | Combustion state control device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63162952A true JPS63162952A (en) | 1988-07-06 |
Family
ID=17977030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30811386A Pending JPS63162952A (en) | 1986-12-26 | 1986-12-26 | Combustion state control device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63162952A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008298782A (en) * | 2007-05-31 | 2008-12-11 | Avl List Gmbh | Method for evaluating combustion |
-
1986
- 1986-12-26 JP JP30811386A patent/JPS63162952A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008298782A (en) * | 2007-05-31 | 2008-12-11 | Avl List Gmbh | Method for evaluating combustion |
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