JPS60184942A - Internal-combustion engine controller - Google Patents
Internal-combustion engine controllerInfo
- Publication number
- JPS60184942A JPS60184942A JP4001884A JP4001884A JPS60184942A JP S60184942 A JPS60184942 A JP S60184942A JP 4001884 A JP4001884 A JP 4001884A JP 4001884 A JP4001884 A JP 4001884A JP S60184942 A JPS60184942 A JP S60184942A
- Authority
- JP
- Japan
- Prior art keywords
- basic
- information
- control information
- fuel
- amount
- 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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
Abstract
Description
【発明の詳細な説明】
不発明は内燃機関制御装置に係シ、内燃機関の個々の運
転条件に適した燃料供給量（例えば空燃比）を与える制
御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an internal combustion engine control device, and more particularly to a control device that provides a fuel supply amount (for example, an air-fuel ratio) suitable for individual operating conditions of the internal combustion engine.
従来のこの種の制御装置において、特に燃料供給装置例
えば気化器や燃料噴射器等の機能に経年変化が生じた場
合、排気ガス検出器からのフィードパ、り量が増大し、
大きな補正量に基いて実際に燃料の供給制御が行なわれ
る。このために、あらかじめ入力されている基本制御情
報（マツプといわれている）と大きく異なった情報に基
いて制御されることになる。即ち機関の実際の適正な燃
料要求量と電子制御回路の記ｉしている燃料供給−量と
の差が大きくなる。この差を補正するために大きなフィ
ードバック量が必要となる。このような場合、内燃機関
の運転中、機関燃料要求量が排ガス検出器の応答速度以
上に早く変化した場合（急激な負荷変動があった場合や
急加速の場合等）。In conventional control devices of this kind, especially when the function of the fuel supply device such as a carburetor or fuel injector changes over time, the amount of feed from the exhaust gas detector increases.
Fuel supply control is actually performed based on the large correction amount. For this reason, control is performed based on information that is significantly different from basic control information (called a map) that has been input in advance. That is, the difference between the actual proper fuel requirement of the engine and the fuel supply amount recorded by the electronic control circuit becomes large. A large amount of feedback is required to correct this difference. In such a case, when the engine fuel requirement changes faster than the response speed of the exhaust gas detector while the internal combustion engine is operating (such as when there is a sudden load change or sudden acceleration).
燃料供給量が直ちに適切な機関要求量にはなフ得ない。The amount of fuel supplied cannot immediately meet the appropriate engine requirements.
不発明は、このような問題を解決した内燃機関制御装置
を提供することにある。The object of the invention is to provide an internal combustion engine control device that solves these problems.
不発明は、内燃機関の個々の運転条件に適した燃料供給
量を決めるための基本制御情報を前記個々の運転条件に
おける排気ガスの成分に基いて補正して得た基本制御情
報力Ｉ己憶される手段を含み、前記記憶される手段にお
いてすでに記憶された基本制御情報を用いて前記燃料供
給量を調整するように構成した内燃機関制御装置にある
。The invention is based on the basic control information obtained by correcting the basic control information for determining the fuel supply amount suitable for each operating condition of the internal combustion engine based on the components of exhaust gas under each operating condition. The internal combustion engine control device is configured to adjust the fuel supply amount using basic control information already stored in the storing means.
次に図面を参照して本発明の一実施例を詳細に説明する
。Next, one embodiment of the present invention will be described in detail with reference to the drawings.
図は本発明の実施例を示すブロック図である。The figure is a block diagram showing an embodiment of the present invention.
同図において、シリンダやピストン等からなる火花点火
ガソリン機関の機関本体９が被制御機関となっている。In the figure, an engine body 9 of a spark ignition gasoline engine, which is composed of a cylinder, a piston, etc., is the controlled engine.
この機関本体９には、−！ず吸入空気１と燃料２との混
合体３がスロットルバルブ７により流入量調整されて供
給される。吸入空気１の流路には、吸入空気重量を検出
するための吸入空気量検出器５が設けられ、燃料２の流
路には、流入燃料ｉ′ｆ：調整するための燃料調整器６
が設けられている。燃料調整器６は、空燃比が適正（λ
＝１）になるように調整するために必要である。スロッ
トルバルブ７は、運転者が任意に設足出来るものである
。In this engine body 9, -! First, a mixture 3 of intake air 1 and fuel 2 is supplied with its inflow amount adjusted by a throttle valve 7. The flow path of the intake air 1 is provided with an intake air amount detector 5 for detecting the intake air weight, and the flow path of the fuel 2 is provided with a fuel regulator 6 for adjusting the inflow fuel i'f.
is provided. The fuel regulator 6 has an appropriate air-fuel ratio (λ
= 1). The throttle valve 7 can be installed as desired by the driver.
機関本体９において燃焼し終えた混合体は排気弁（図示
していない）を介して外へ排気ガス４として排出される
。この排出路に排出ガスの酸素量を検出するための酸素
検出器１０例えばジルコニア酸素計が設けられる。The mixture that has been burned in the engine body 9 is exhausted to the outside as exhaust gas 4 via an exhaust valve (not shown). An oxygen detector 10, such as a zirconia oxygen meter, is provided in this exhaust path to detect the amount of oxygen in the exhaust gas.
吸入空気量検出器５で得られた吸入空気情報１７と、機
関本体の機関回転数検出器８で得られた回転数情報１８
とが、基本制御部１３に人力される。Intake air information 17 obtained by the intake air amount detector 5 and rotation speed information 18 obtained by the engine rotation speed detector 8 of the engine body.
is manually input to the basic control section 13.
基本制御部１３では、前記二つの情報により指定された
アドレス内の基本量を探索するために、基本量記憶部１
４に読み出し信号２１を送シ、前記アドレス内の基本量
２２を読み出し、燃料調整器６の燃料量を適切に加減す
るための基本制御情報１９を得る。この情報１９は、補
正制御部１１においてさらに微調整されるが（補正制御
情報２０）、この補正制御部１１において補正の必要が
ない場合はこの情＠１９はそのまま燃料調整器６に送ら
れ、燃料量が調整される。この調整は、燃料の供給時間
を制御したり、あるいは燃料供給口径を可変することに
よフ行なわれる。In the basic control unit 13, in order to search for the basic quantity within the address specified by the above two pieces of information, the basic quantity storage unit 1
4, the basic amount 22 in the address is read out, and basic control information 19 for appropriately adjusting the fuel amount of the fuel regulator 6 is obtained. This information 19 is further finely adjusted in the correction control unit 11 (correction control information 20), but if there is no need for correction in the correction control unit 11, this information @19 is sent as is to the fuel regulator 6, The amount of fuel is adjusted. This adjustment is performed by controlling the fuel supply time or varying the fuel supply diameter.
補正制御部１１において基本制御情報１９を微調整する
ための入力情報２５は、排気ガス通路４に設けた酸素検
出器ｌＯから得られる。この制御装置は、基本量記憶部
１４内の基本量に基いて燃料の流入調整が行なわれるだ
けでなく、酸素検出器ｌＯからの酸素の有無にも基いて
調整が行なわれる。Input information 25 for finely adjusting the basic control information 19 in the correction control section 11 is obtained from the oxygen detector IO provided in the exhaust gas passage 4. This control device not only adjusts the inflow of fuel based on the basic amount in the basic amount storage section 14, but also adjusts based on the presence or absence of oxygen from the oxygen detector IO.
以後前者の制御系を第１の制御系、後者の制御系を第２
の制御系と称する。第１の制御系の人力情報としては、
回転数情報、吸入空気量情報等の他に、急加速情報や機
関本体９の冷機時情報等１６が必要に応じて入力される
。第２の制御系は、吸入空気１の組成が変化したり、燃
料調整器６の調整機能が劣化したり、あるいは機関本体
９の機械的作動能力が経時変化しり勺した場合に有効に
働く−
従来の方法ではこのような組成変化、劣化、経時変化が
大きくなればなる程、第２の制御系のフィードバック量
も大きくなるため、伺等かの原因で運転状態が変化した
時に過渡状態から安定な制御状態に達するまで時間が長
くかかる・特に、酸素検出器１０の応答速度を越える急
激な被制御系の変化時１例えば急力日減速時などは、第
２の制御系が芙質的に働かず、第１の制御系のみで制御
されることにな多制御は極めて粗いものとなり、好まし
くない。From now on, the former control system will be referred to as the first control system, and the latter control system will be referred to as the second control system.
It is called the control system. The first control system human power information is as follows:
In addition to the rotational speed information, intake air amount information, etc., sudden acceleration information, cold engine information 16 of the engine body 9, etc. are input as necessary. The second control system becomes effective when the composition of the intake air 1 changes, when the adjustment function of the fuel regulator 6 deteriorates, or when the mechanical operating capacity of the engine body 9 begins to change over time. In conventional methods, the greater the compositional changes, deterioration, and changes over time, the greater the amount of feedback in the second control system. It takes a long time to reach a controlled state. -Especially when the controlled system changes rapidly, exceeding the response speed of the oxygen detector 10.1 For example, during sudden deceleration, the second control system may become unstable. Multi-control, which does not work and is controlled only by the first control system, becomes extremely rough, which is not preferable.
不笑施例では、このような問題を解決するため、基本量
計算部１２と基本量更新部２７を伺加している。基本量
計算部１２には、基本制御情報１９と補正制御情報２０
および吸入空気情報、回転数情報、時間情報等の基本量
変更情報２６が入力され、基本制御情報１９の変更が必
要な場合、補正制御情報２０の制御量が小さくなるよう
に基本制御情報１９が変更される。その記憶場所は、基
本量更新部２７で決定された吸入空気情報１７と回転数
情報１８とで指定されたアドレス内である。In the fujo example, in order to solve such a problem, a basic quantity calculating section 12 and a basic quantity updating section 27 are added. The basic quantity calculation unit 12 includes basic control information 19 and correction control information 20.
and basic quantity change information 26 such as intake air information, rotation speed information, time information, etc. are input, and if the basic control information 19 needs to be changed, the basic control information 19 is changed so that the control quantity of the correction control information 20 becomes smaller. Be changed. The storage location is within the address specified by the intake air information 17 and rotational speed information 18 determined by the basic amount updating section 27.
かくして、個々の運転条件に応じたアドレス内に、新し
い基本量が記憶される。さて、同じ運転条件が再現され
た場合、前回補正された基本量が記憶されているため、
補正制御部１１で補正される補正制御量は小さな値とな
る。A new basic variable is thus stored in the address corresponding to the individual operating conditions. Now, if the same operating conditions are reproduced, the previously corrected basic amount is stored, so
The correction control amount corrected by the correction control unit 11 becomes a small value.
以上のような構成によって、排ガス成分からの燃料に対
するフィードバック量は極めて小なるものとなる。この
ため、たとえば急加減速時の条件に応じた最も適切な制
御情報が、補正記憶された基本量記憶部１４から直ちに
得られる。With the above configuration, the amount of feedback from the exhaust gas components to the fuel becomes extremely small. Therefore, the most appropriate control information according to the conditions during sudden acceleration/deceleration, for example, can be immediately obtained from the corrected and stored basic quantity storage section 14.
以上のように、不発明によれば機関系の経時年変化があ
っても制御特性の劣化しない極めて安定した内燃機関制
御装置が得られる。As described above, according to the invention, it is possible to obtain an extremely stable internal combustion engine control device whose control characteristics do not deteriorate even if the engine system changes over time.
図は不発明の実施例を示すブロック図である。
同図において、１・・・・・・吸入空気、２・・・・・
・燃料、３・・・・・・混合体、４・・・・・・排気ガ
ス通路、５・・・・・・吸入空気量検出器、６・・・・
・・燃料調整器、７・・・・・スロットルバルブ、８・
・・・・・回転数検出器、９・・・・・・機関本体、１
０・・・・・・酸素検出器、１１・・・・・・補正制御
部。
１２・・・・・・基本量計算部、１３・・・・・・基本
制御部、１４・・・・・・基本量記憶部、１５・・・・
・・スロットルバルブ制御指令、１６・・・・・・急加
速情報や機関本体９の冷機時情報、１７・・・・・・吸
入空気情報、１８・・・・・・回転数情報、１９・・・
・・・基本制御情報％ ２０・・・・・・補正制御情報
、２１・・・・・・読み出し信号、２２・・・・・・基
本量、２３・・・・・・書込み信号、２４・・・・・・
基本量（補正後）、２５・・・・・・排気ガス情報、２
６・・・・・・基本量変更情報、２７・・・・・・基本
量更新部・The figure is a block diagram showing an embodiment of the invention. In the same figure, 1... Intake air, 2...
・Fuel, 3...Mixture, 4...Exhaust gas passage, 5...Intake air amount detector, 6...
...Fuel regulator, 7...Throttle valve, 8.
...Rotation speed detector, 9... Engine body, 1
0...Oxygen detector, 11...Correction control unit. 12...Basic quantity calculation unit, 13...Basic control unit, 14...Basic quantity storage unit, 15...
...Throttle valve control command, 16... Rapid acceleration information and engine body 9 cold information, 17... Intake air information, 18... Rotation speed information, 19.・・・
... Basic control information % 20 ... Correction control information, 21 ... Read signal, 22 ... Basic amount, 23 ... Write signal, 24 ...・・・・・・
Basic amount (after correction), 25...Exhaust gas information, 2
6... Basic amount change information, 27... Basic amount update section.
Claims (2)
定めるに轟って、予め基本量記憶部に記憶された基本量
と前記個々の運転条件に応じた動作情報とにより基本制
御情報を得て、該基本制御情報を前記個々の運転条件に
おける排気ガス成分に基づいて補正して補正制御情報を
得て、該補正制御情報によって前記燃料供給量を調整す
るように構成した内燃機関制御装置において、前記基本
制御情報と前記補正制御情報とに基づいて新しく補正さ
れた基本量を計算する基本量計算部と、前記新しく補正
された基本量を前記基本量記憶部に記憶し直す基本量更
新部とを備えたことを特徴とする内燃機関制御装置。(1) After determining the fuel supply amount suitable for each operating condition of the internal combustion engine, basic control information is obtained using the basic amount stored in advance in the basic amount storage unit and the operation information according to the individual operating condition. an internal combustion engine control configured to obtain corrected control information by correcting the basic control information based on exhaust gas components under the individual operating conditions, and adjust the fuel supply amount based on the corrected control information. In the device, a basic quantity calculation unit that calculates a newly corrected basic quantity based on the basic control information and the correction control information, and a basic quantity that stores the newly corrected basic quantity in the basic quantity storage unit. An internal combustion engine control device comprising: an update section.
よびスロットル開度情報を用いる特許請求範囲（１）項
記載の内燃機関制御装置。(2) The internal combustion engine control device according to claim (1), which uses rotational speed information, intake air information, and throttle opening information as the operation information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4001884A JPS60184942A (en) | 1984-03-02 | 1984-03-02 | Internal-combustion engine controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4001884A JPS60184942A (en) | 1984-03-02 | 1984-03-02 | Internal-combustion engine controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60184942A true JPS60184942A (en) | 1985-09-20 |
Family
ID=12569163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4001884A Pending JPS60184942A (en) | 1984-03-02 | 1984-03-02 | Internal-combustion engine controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60184942A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62199955A (en) * | 1986-02-27 | 1987-09-03 | Toyota Motor Corp | Control of air-fuel ratio learning of lpg engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420231A (en) * | 1977-07-12 | 1979-02-15 | Gen Motors Corp | System of controlling fuel of internal combustion engine |
| JPS5596339A (en) * | 1979-01-13 | 1980-07-22 | Nippon Denso Co Ltd | Air-fuel ratio control method |
-
1984
- 1984-03-02 JP JP4001884A patent/JPS60184942A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420231A (en) * | 1977-07-12 | 1979-02-15 | Gen Motors Corp | System of controlling fuel of internal combustion engine |
| JPS5596339A (en) * | 1979-01-13 | 1980-07-22 | Nippon Denso Co Ltd | Air-fuel ratio control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62199955A (en) * | 1986-02-27 | 1987-09-03 | Toyota Motor Corp | Control of air-fuel ratio learning of lpg engine |
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