JPS5820939A - Electronic control system for throttle of intake in diesel engine - Google Patents

Electronic control system for throttle of intake in diesel engine

Info

Publication number
JPS5820939A
JPS5820939A JP56118523A JP11852381A JPS5820939A JP S5820939 A JPS5820939 A JP S5820939A JP 56118523 A JP56118523 A JP 56118523A JP 11852381 A JP11852381 A JP 11852381A JP S5820939 A JPS5820939 A JP S5820939A
Authority
JP
Japan
Prior art keywords
pressure
intake
output
throttle valve
input
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
Application number
JP56118523A
Other languages
Japanese (ja)
Inventor
Masayuki Abe
誠幸 阿部
Hisashi Kawai
寿 河合
Toshihiko Ito
猪頭　敏彦
Takeshi Tanaka
猛 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soken Inc
Original Assignee
Nippon Soken Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP56118523A priority Critical patent/JPS5820939A/en
Publication of JPS5820939A publication Critical patent/JPS5820939A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/1055—Details of the valve housing having a fluid by-pass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE:To contrive to reduce vibration and noise, by a method wherein a pressure sensor for detecting the pressure inside a combustion chamber is provided, and the opening of an intake throttle valve is controlled according to the pressure. CONSTITUTION:An injection pump 7 is provided with a control lever 10 for controlling the injection amount, and the pressure sensor 11 is fixed to the combustion chamber 3. A projection 7b for detecting a reference signal 7b is provided on a driving gear 7a for the injection pump 7. A main intake passage 5a and an auxiliary intake passage 5b are provided on the upstream of an intake pipe 5, and a main intake throttle valve 12a and an auxiliary intake throttle valve 12b are located in the passages 5a and 5b, respectively. When the maximum combustion pressure is not lower than a preset pressure value, the opening of the auxiliary throttle valve 12b is gradually reduced by a predetermined amount in each predetermined period, and when the maximum combustion pressure is lower than the preset pressure value, the opening of the valve 12b is gradually enlarged. Accordingly, the air amount can be controlled accurately, and it can be contrived to reduce the vibration and noise.

Description

【発明の詳細な説明】 本−―はディーゼルエンジンの吸気絞〕の電子制御シス
テムに関し、窃らＫｉＩＰシ〈はエンジンの振−１麿費
対策としてＯ吸気絞り弁０制御に関す１％Ｏであ為０従
来デイーゼルエンジンＫＴｈいて績−１騒音が大暑％Ａ
ことが間■とｔｋ−ｐているが、ζｐｓｉ―中騒音は轡
に低負荷、アイド替ンダ時には顕著である０これは着火
時Ｏ燃焼圧力上昇率がガソ讐ン機関に比べか１１大きい
ことが主な原因であゐものと思考される。これら振動、
騒音Ｏ対策として吸気絞りが行われる仁とがある。これ
は、吸気管に絞〕弁を設けて低負荷及びアイドリンダ時
に絞り弁を閉じてや〕、吸入空気量を抑え石ことによ！
Ｊ−焼圧力上昇率を抑え騒音、振動を低減しようという
４０であるが、反−絞りすぎると着火が不完全となり未
燃ガスが生じるという問題点が鼠じ為・即ち絞）弁０Ｉ
１１度を適性に制御しなければ有書工にツシ謬ンＯ増加
、１１に白値が増加すゐ◇さらに機械的に例えば絞）弁
開度が２ｔｐｌＫ変わるというような方法においては、
大気圧、温ＪＩｉ曽環境条件Ｏ変化に対応で亀ないＯで
補償装置を必要とすゐ０本発明Ｏ目的は上記０ＩＩＬＫ
鑑みなされｔもＯで、吸気絞９弁を有したディーゼルエ
ンジンＯＳ焼電圧力管検出すゐ圧力センサを設け、こ〇
−鉤車室内圧力応じて１気絞）弁ｏＷＡ度を制御し、゛
振ｌｌ１ｌ、騒音を低減するとと−に、それに反して生
じゐスモータの増加を防止すゐディーゼルエンジンの吸
気＊ｌＤ電子制御Ｖステムを提供するととにあゐ 零発−によれば吸気管ＫＩＩＲり弁を設けたディーゼル
エンジンＫをいて、エンジンの負荷検出手段と働鉤室内
の圧力検出手段を備え、燃焼室内の圧力が設定値にな為
ように曽記絞ｐ弁を開閉すゐことｔｌｌ像としたディー
ゼルエンジンの吸気絞りＯ電子制御シヌテムが提供され
る。DETAILED DESCRIPTION OF THE INVENTION This article relates to an electronic control system for the intake throttle of a diesel engine. 0 Conventional diesel engine KTh performance - 1 Noise is very hot %A
This means that the combustion pressure rise rate at ignition is about 11 times higher than that of a gas engine. It is thought that this is the main cause. These vibrations,
In some cases, air intake is throttled as a countermeasure against noise. This can be done by installing a throttle valve in the intake pipe and closing it during low load and idle conditions to suppress the amount of intake air!
J-40 aims to suppress the rate of increase in firing pressure and reduce noise and vibration, but if the throttle is too narrow, ignition will be incomplete and unburned gas will be produced.
If the 11 degree is not properly controlled, the error will increase and the white value will increase.
A compensating device is required to cope with changes in atmospheric pressure and temperature and environmental conditions without any distortion.The purpose of the present invention is the above IILK
In view of this, the diesel engine OS with 9 intake throttle valves is equipped with a pressure sensor that detects the pressure of the power tube. According to the diesel engine intake pipe KIIR, it provides an electronically controlled V-stem that reduces noise and, on the other hand, prevents an increase in the amount of motor generated. A diesel engine K equipped with a valve is equipped with an engine load detection means and a pressure detection means in the working hook chamber, and the P valve opens and closes so that the pressure in the combustion chamber reaches a set value. An electronic intake throttle system for a diesel engine is provided.

本１１羽ＯＩＩ論例について第１閣に従って説明する０
第１１１において１は機関本体であゐＯｌた第１１１に
示すように機関本体１はピストン２、燃焼室３、排気弁
４、開示しないが吸気弁と、吸気管暴、排気管６、−科
噴射ポンプ７、燃料噴射ノズル８．グは一プラグ９、勢
から構成されてｉる〇吹射ポンプ７に＃ｉ噴射量を制御
するコントロールレバー１０が付設されている。また燃
焼１１３には圧力センサ１１が固定される。噴射ポンプ
の駆動ギヤ７ａＫは基準信号検出用突起１ｂが形成され
てい為。ギヤ７番はクランクシャフト２回転で１■転す
る０獣気管５の上ＲＫは主吸気通路Ｓ＆、副吸気通路５
ｂが形成され、主吸気通路５＆内には主吸気紋〕弁１２
ａ、１ＩＩＩＦＩ＆気通路５ｂ内には調吸気絞参弁１冨
すが囲板自由にシャフト１３ａ。Explain the book 11 OII examples according to the first cabinet0
In No. 111, 1 is the engine body. As shown in No. 111, the engine main body 1 includes a piston 2, a combustion chamber 3, an exhaust valve 4, an intake valve (not disclosed), an intake pipe pipe, an exhaust pipe 6, and a cylinder. Injection pump 7, fuel injection nozzle 8. The injection pump 7 is equipped with a control lever 10 for controlling the injection amount. Further, a pressure sensor 11 is fixed to the combustion 113. This is because the drive gear 7aK of the injection pump is formed with a reference signal detection protrusion 1b. Gear No. 7 rotates once with two rotations of the crankshaft. Upper RK of animal trachea 5 is main intake passage S&, sub-intake passage 5.
b is formed, and inside the main intake passage 5 & there is a main intake valve 12.
A, 1IIIFI & In the air passage 5b, there is one air adjustment intake throttle valve, but the shaft 13a can be freely attached to the surrounding plate.

１３ｂＫ構成されてい１Ｇ主吸気絞９弁１２ｍのシャ７
）１１ａｅｊフント璽−ルレＡ−１０とともにアクセル
ペダル１４にリングＩｓ、１６．１７を介して連結され
ている・主吸気絞）弁１２ｍのシャ７）１８ａＫはアー
ム３・が一体Ｋ１１１定しである＠ｉｇｎ気絞９弁１ｍ
％０シャ７）１ｍ’ｂはし／（−１８を介してアタチェ
ータｌ静〇四ツド２Ｇに連結１れゐ０レバー１８０先喝
はロッド２０１）先端ｍ長大ｇｏａｔ幽−に＄−できる
ように形成Ｌｆ＆る◎レバー１８とシャツ）１３１ｂは
一体的に形ＩＥ１ｎ％　胃、ｙｚｏｏスト訪−タにより
ＩＩｌ徴気績）＠１ｌｌｅは−ｍ−ｇれる。アクチェー
タ１９嬬ｖ塁アソレノイドでｈ）、；イル２１．鉄心８
２、スプリング２１によ）構成されている。スプシンダ
意３は鉄心！意と―ツドｔＯｔ）ＷＲＫ介在１ＩｆＬ為
。圧力センサ１１は圧力検出部１１＆が働飾富８内Ｋｗ
して−）、犠鉤璽圧力を検出できる　　　　　。13bK consists of 1G main intake throttle 9 valves 12m shaft 7
) 11aej Hund Seal - Connected to accelerator pedal 14 with ring Is, 16.17 together with Relais A-10・Main intake throttle) Valve 12m shaft 7) 18aK has arm 3・is integrated with K111 @ign 9 valves 1m
%0 shaft 7) 1m'b arm/(-18 connected to the atcheter l static 〇 4d 2G 1 wire 0 lever 180 tip is the rod 201) tip m length large goat can be $- Formation Lf&ru◎lever 18 and shirt) 131b are integrally shaped IE1n% stomach, yzoo strike visitor IIl symptoms) @1lle is -m-g. Actuator 19 嬬 V base at the solenoid h); il 21. iron core 8
2) consists of a spring 21). Spushinda 3 is iron heart! WRK intervention 1IfL. The pressure sensor 11 has a pressure detection part 11 & is working inside Kw
), the sacrificial hook pressure can be detected.

ように取〕付けられていゐＯ！１・は制御回路であ為。It is installed like this! 1. is the control circuit.

！４はアイドルスイッチであ１主歇気絞）弁１２＆が全
閉時にその信号が制御回路２６に入力される０さらに圧
力センサ３１の圧力変化に制御＠９２６へ入力する。さ
らに２５は回転角度センナであり、基準位置を検出し制
御１路２６に電気信号を入力する。制御回路２６からは
アクチェ−メ１９を作動させ為信号が出さｎる。! Reference numeral 4 denotes an idle switch whose signal is input to the control circuit 26 when the main valve 12& is fully closed; and the signal is input to the control circuit 926 according to the pressure change of the pressure sensor 31. Furthermore, 25 is a rotation angle sensor which detects a reference position and inputs an electric signal to control 1 path 26. The control circuit 26 outputs a signal to operate the actuator 19.

つぎに本＊＠１）実施例の作動音説明する。エンジン暖
機＊０了イドリンダにおいて、アクセルペダル１４はＸ
されて＄Ｐ）、主吸気絞９升１２ｍは全閉と１に−）て
いる。ζ０時アイドルスイッチ２４にエリアづドリンク
であ、＆こと音検出し、そＯ情報量制御ｍ％２６に入力
するロアイドリングＫｔう＊＊１ｌＩｌから７クチエー
タ１９を作動させるＤで、アクチェータ１９作−前ｒａ
ｔ副吸気絞）弁１２ｂはスプリング２３の力ＫＬり全開
となっているロー１１１ｆｉ３ｏ圧力は圧力センサ１１
により計測されている０＠＊１１３０１Ｅ力ｄ’１１４
１１Ｌ弁１２　ｂ　ｔｌｌ’５　ｔ；ティ＜　Ｋ従い、
比例的に減少してい（があらかじめ最大−焼室圧力Ｏ１
１定値を制御回路２６内に設定してお勤、１ｌＩｌｋ気
絞）弁１ネｂ１に最大燃焼室圧力が前記設定値になるま
でアクチェータ１９にｘｖ閉じていぐ。そして最大燃焼
室圧力が設定値になったら閉じるのを停止する。もし、
ｉｋ大髄論室圧力が設定値以下になったら副吸気絞り弁
５Ｚｂｋ開けるＯ以下この動作をくり返す０本実施例に
おいてはアイドリンクの検出方法としてリミットスイッ
チを使用し文が、ボデンシ薦メータでも艮い０又、７ク
チエータとしてリニアソレノイド￥ｔ＊ｍしたが、ダイ
ヤフラム式アクチェーメでも良いし、パルスモータでも
良い仁と祉勿論である０ つｔ！ｔＫ制御ｖＡｌ１２＠について亀２閣に↓ｂ説明
すゐ。入力端子２６　ｍ　＊　２６　ｂ祉前記圧力セン
す１１０出力に１ｉ＆堪れゐＯ入力端子２６・は餉記回
転角直セン１２５０出力に振Ｉｋ壜れゐＯ入力端子２６
４は前記アイドルスイッチ５Ｅ４Ｋｉｌ絖され為。入力
端子２６ｍ、！＠ｂは圧力制御−ｌ！２１の差動増幅器
２７ａの入力Ｋ１１ｌｌされるＯ入力熾子２６＠は圧力
判別回路３１０ｍ形１路２フ億の入力に接続１詐為。入
力端子３・櫨はスイッチ回路３３０人力に接続され、１
１ｏ出力廟子２・ｅは―記比例ソレノイド１９のコイル
２１の一端に接続される０該コイルの他端には電源電圧
Ｖｌが印加される。また出力端子２６ｅは駆動回路３４
の出力に接続される。Next, the operating sounds of this *@1) embodiment will be explained. When the engine has warmed up *0 and is idle, the accelerator pedal 14 is
The main intake throttle is fully closed and the main intake throttle is set to 1-). ζ At 0, the idle switch 24 is connected to the area and the sound is detected, and the lower idling input to the information amount control m% 26 is activated. previous ra
The sub-intake throttle) valve 12b is fully open due to the force KL of the spring 23. The low pressure is detected by the pressure sensor 11.
0@*11301E force d'114 measured by
11L valve 12 b tll'5 t; T<K Therefore,
Proportionally reduced (but pre-maximum - baking chamber pressure O1
1 constant value is set in the control circuit 26, and the actuator 19 is closed until the maximum combustion chamber pressure reaches the set value. It then stops closing when the maximum combustion chamber pressure reaches the set value. if,
ik When the main chamber pressure falls below the set value, open the auxiliary intake throttle valve 5Zbk. Repeat this operation. In this embodiment, a limit switch is used as the idle link detection method. I used a linear solenoid as the 0 or 7 actuator, but it goes without saying that a diaphragm type actuator or a pulse motor would also work! I will explain tK control vAl12@ to Kame Nikaku↓b. Input terminal 26 m * 26 b Pressure sensor 110 output 1i&amp;
4 is for the idle switch 5E4Kil. Input terminal 26m! @b is pressure control-l! The O input terminal 26@ which is input to the differential amplifier 27a of 21 is connected to the input of the pressure discrimination circuit 310m type 1 path 2 digits 1 false. Input terminal 3/櫨 is connected to switch circuit 330, 1
1. The output terminal 2.e is connected to one end of the coil 21 of the proportional solenoid 19. The power supply voltage Vl is applied to the other end of the coil. Further, the output terminal 26e is connected to the drive circuit 34.
connected to the output of

つぎに圧力判別回路２７について説明する。差動増幅器
２７ｍの出力はピークホールド回路２７ｂの入力に接続
され不。整形回路２７０の出力は単安定マルチバイブレ
ータ２７ｄの入力に接続される。該単安定マルチバイブ
レータ２７ｄの出力は前記ピークホールド回路２７ｂの
リセット人力に接続される０ピ一クホールド回路２７ｂ
の出力は平滑回路２７・の入力に接続される。該平滑回
路２７ｅの出力は差動増幅器２７ｆの非反転入力に接続
される０２７ｇは可変抵抗器で固定端の一端には一定電
圧Ｖｃが印加されており、他端は接地されている０可質
端子は差動増幅器２７ｆの反転入力に接続されている０
皺可変端子には電圧Ｖｒが設定しである。差動増幅器±
７ｆの出力は臨ｌ比較器２７ｈと＠２比較器２７ｊＯ非
反転入力にそれぞれ接続しである◎Ｉ１１比ｒＩＲ器２
７ｈの反転入力は可変抵抗器２７ｉの可変端に接続され
る。該可変抵抗器２石の固定端子の一端には一定電王Ｖ
ｃが印加されており、他端は接地きれる。第２比較器２
７ｊの反転入力には一定電圧ΔＶが設定されている。第
２比較器２７ｊの反転入力には可変抵抗器２７ｈの町変
渇子が接続される。該可変抵抗器２７ｈの固定端子の−
４には一定電圧−４ｄが印加してあり他増は接地されて
いる。第２比較器２７ｊの反転入力には負の一定電圧−
４ｄが設定されている。第一比較−２７ｈの出力はアッ
プダクンカウンタ３０のＵ／Ｄ人力とインバー声！７１
０入力にそれぞれ接続される。第２比較１１２？ｉｏ出
力はＡＮＤゲー）２７ｍ（Ｄ他方の入力Ｋｌ続しである
。インバータ２１１の出力はＡＮＤゲー）１７ｍの一方
の入力に接続される。鋏ムＮＤゲート２７凰の出力はＡ
ＮＤゲート２９の一方の入力にｌ１Ｉ−されて−る。各
１回路は一般に公知であるので一１！曾だけを説明する
。差動増幅器３７ｍは圧力ｉす１１０出力電圧を増幅す
る。この波形を嬉３図囚に示す０盛形−路２７ｃは１転
角度１ンｔ２５の信号を短廖畝に整形する０単安定マル
チバイブレータ２７ｄは前記整形回路２１＠のパルス信
号のうち高レベルから低レベルに＊化した時に一定のパ
ルス幅のパルスを発生ず為。皺パルス発生位置はエンジ
ンの排気性ｌｉの位置であ４ｏこれＦｉｌ１３図のンの
波形となる＠ピークホールド回路ｚｒｂＦｉ前記単安定
マルチバイブレータ冨７ｄＯパルス（１４＃によ）リセ
ットされる。Next, the pressure discrimination circuit 27 will be explained. The output of the differential amplifier 27m is connected to the input of the peak hold circuit 27b. The output of the shaping circuit 270 is connected to the input of the monostable multivibrator 27d. The output of the monostable multivibrator 27d is connected to a zero peak hold circuit 27b which is connected to the reset power of the peak hold circuit 27b.
The output of is connected to the input of smoothing circuit 27. The output of the smoothing circuit 27e is connected to the non-inverting input of the differential amplifier 27f. 027g is a variable resistor, one fixed end of which is applied a constant voltage Vc, the other end of which is grounded. The terminal is connected to the inverting input of the differential amplifier 27f.
A voltage Vr is set to the wrinkle variable terminal. Differential amplifier ±
The output of 7f is connected to the IR comparator 27h and @2 comparator 27jO non-inverting input. ◎I11 ratio rIR unit 2
The inverting input of 7h is connected to the variable end of variable resistor 27i. A fixed voltage V is connected to one end of the fixed terminal of the two variable resistors.
c is applied, and the other end can be grounded. Second comparator 2
A constant voltage ΔV is set to the inverting input of 7j. The inverting input of the second comparator 27j is connected to the variable resistor 27h. - of the fixed terminal of the variable resistor 27h
4 is applied with a constant voltage of -4d, and the other terminals are grounded. The inverting input of the second comparator 27j has a negative constant voltage −
4d is set. First comparison - 27h output is U/D human power of updakun counter 30 and invar voice! 71
0 input, respectively. Second comparison 112? The output of the inverter 211 is connected to one input of the AND game 17m. The output of the scissors ND gate 27 is A
One input of the ND gate 29 is connected to l1I-. Each circuit is generally known, so 1! I will explain only Zeng. Differential amplifier 37m amplifies the pressure i 110 output voltage. This waveform is shown in Figure 3. The 0-shaped circuit 27c shapes the signal of 1 turn angle 1t25 into a short ridge. The 0-monostable multivibrator 27d is the high-level pulse signal of the shaping circuit 21@. This is because a pulse with a constant pulse width is not generated when the level changes from * to low level. The wrinkle pulse generation position is the position of the exhaust characteristic li of the engine, and the peak hold circuit zrbFi is reset by the monostable multivibrator 7dO pulse (by #14).

そしてリセットされてから次のリセットパルス信号が来
る壜で差−増幅器２７ｍの出力波形Ｏ最大値ｔホールド
す為・これはｌｌ３１ＩｌｌＣ）（［形となゐ。After being reset, the output waveform O of the difference amplifier 27m is held at the maximum value t when the next reset pulse signal comes.

平滑１略意γｅＦｉ前記整ｍａ路２７ｂからのリップル
信号を平滑して平均値重圧を出力する０このＩｌ形を第
３図わ）に示す。時定数は約２秒である。Smoothing 1 Abbreviation γeFi Smoothing the ripple signal from the smoothing ma path 27b and outputting the average value pressure 0 This Il type is shown in FIG. 3). The time constant is approximately 2 seconds.

差動増＠Ｉ！！？ｆは平均値２７ｃＯ出力電圧Ｖｘと一
定電圧ＶｒとＯａｔ増幅して出力すゐｏ　ＳＩＥ　１比
較器２７には差動増幅器２７ｆの出力Ｖｘ−Ｖｒと設定
電圧ΔＶとを比較すゐ０そしてＶｘ−Ｖｒ２：ΔＶＯと
音出力に高レベルｔ、その他の場合は低レベル信４＃を
出力すゐ・纂２比験器２７ＪはＶｘ　−ｖ１≧−ΔＶの
場合は高レベルを１その他の場合嬬低レベル信号を出力
すゐ◎第１比較＠２７ｈ、＠２′比較器２７ｊとインバ
ータ２’ｌｔ％ＡＮＤゲ−）　２７　ｍは不感帯を設け
るため０１１１１であ染、これについて鶴４図を参照に
して説明す為口観番１１におｈ　テＶｘ　−Ｖｒ　≧Δ
Ｖ　Ｏ領ｍ＆ｔｌｉＱＩ１１りＣ，？’４！ｌ、Ｖｘ−
Ｖｒ；＆−ΔＶｔ）領域Ｂ３ｗｏｃ、”ｅあＪＩＧ　ｅ
ｘＯ領域Ｏ場会場合１１１比較器２’ＦｋＯ出力祉％ｌ
＃となりＣ−領域０場会、ｌＫ２比較１１！７ｊｅ出力
は１１′となる。従って第１比較５ｘｙｈｅ出力をイン
バータ２’ｌＬで反転した信号とｍｇ比較器２７ｊＯ出
力Ｏ論聰積をＡＮＤゲー）１１７１１てとふと１１４図
の領域Ｃが１１＃となるｅ＠１比較＠！７ｈＯ出力僅号
ａ嬬ｍ吸気絞参弁１！ｂＯ開巌を−〈方向か閉じゐ方向
かを決める信号であり、ムＮＤゲー）！７１１１０出力
信号すは−ａｔそＯオｔｏ位置に保持すゐかしないかＯ
信号である。２８はりｎツク回路で出力はＡＮＤゲート
！！９０一方の入力に接続されるロ骸ムＮＤゲート雪９
０出力はアップメウンカクン！３００／Ｅｌツタ入力Ｋ
ＩＩ統されるワ皺アップダウンカウンタＳＯＯ出力は８
端子あり、各端子はそれぞれ８人力あ為Ｄ−Ａ変換器１
１の入力にそれぞれ接続される０鋏Ｄ−Ａ変換ｓ＋３１
の出力は抵抗３２の一端Ｋ１１ｌ続される。該抵抗３２
の他端はスイッヂａ＊ｓｓｏ出カと駆聯回路３４人力抵
抗３４ｍの一端ＫＩＩ絖される。スイッチｗＡ１１３３
のトランジスタ３３ａｆ）ペースはダイオード３３ｂの
正極と抵抗３３＠の一端と抵抗３３ｄの一端にそれぞれ
接続される・ダイオード５ｓｂｏ負ＷａＳ制御ｖｓｖａ
ｚｓｏ入カ端子２６ｄに接続され石。抵抗ａＮ＊０他端
はＩＩＩＩｋされている。抵抗３＄４０他端には一定電
圧Ｖｅ　−ＩＩＸ印加されている０前記トランジスタ３
３．の工建ツタは接地され、コレクタは前述のようＫｍ
抗３２の他端ＫＩＩＩＩ！続畜れ為。Differential increase @I! ! ? f is the average value 27cO output voltage Vx, constant voltage Vr and Oat are amplified and outputted. Vr2: High level t for ΔVO and sound output, otherwise outputs low level signal 4# Sui・线2 comparator 27J outputs high level when Vx −v1≧−ΔV 1 otherwise low level Output level signal (1st comparison @27h, @2' comparator 27j and inverter 2'lt% AND game) 27m is dyed with 01111 to provide a dead zone.Refer to Figure 4 for this. To explain, please refer to the gate number 11.Vx −Vr ≧Δ
VO territory m&tliQI11riC,? '4! l, Vx-
Vr;&-ΔVt) area B3woc, “eah JIG e
xO area O field case 111 comparator 2'FkO output welfare %l
#, and if the C-region is 0, the lK2 comparison 11!7je output becomes 11'. Therefore, the signal obtained by inverting the output of the first comparison 5xyhe by the inverter 2'lL and the logical product of the mg comparator 27jO output O are ANDed) 11711 and suddenly 114 The area C in the diagram becomes 11# e@1 comparison @! 7hO output only a tsum intake throttle valve 1! The bO opening is a signal that determines whether it is in the direction or in the closed direction (MuND game)! 71110 output signal is held in the -at position or not.
It's a signal. The output is an AND gate with a 28-pin circuit! ! 90 Rokumu ND gate snow 9 connected to one input
0 output is up! 300/El ivy input K
II unified wrinkle up/down counter SOO output is 8
With terminals, each terminal has 8 manual input D-A converter 1
0 scissors D-A conversion s+31 connected to 1 input respectively
The output of the resistor 32 is connected to one end K11l. The resistor 32
The other end is connected to the switch a*sso output and one end of the drive circuit 34 and the human resistance 34m KII. switch wA1133
The transistor 33af) pace is connected to the positive terminal of the diode 33b, one end of the resistor 33@, and one end of the resistor 33d, respectively - Diode 5sbo negative WaS control vsva
It is connected to the zso input terminal 26d. The other end of the resistor aN*0 is set to IIIk. A constant voltage Ve -IIX is applied to the other end of the resistor 3 $40.0 The transistor 3
3. The construction ivy is grounded, and the collector is Km as mentioned above.
The other end of anti-32 KIII! Continuation of the damn thing.

りぎに１１１１１１−路３４ｆｌｌｌｌ！構成ヲ説−”
ｆ”ｈｏ大入力抗３４ａＯ他端祉演算増幅ＩＨ４ｂＯ非
反転入力に＠続される０増幅＠３４ｂＯ出カはトランジ
スタ３４ｅのベースに一統される・骸トランジスタ３４
電Ｏ工建ツタは電流検出抵抗３４４０−１ｌＩ例抵抗３
４・〇一端Ｋｌｉ続畜れゐ・電ｍ検出紙他端°は増幅器
３４ｂの反転入力に接続される◎前記３４＠Ｏコレクタ
は本制御１ｉ１ｉｉ！＠ＩＤ出力端子に接続され、コン
デン＋３４ｆはトランジスタ３４＠０ペースとコレクタ
０間に発振防止用として挿入される。Rigini 111111-ro 34flllll! Composition theory-”
f”ho large input resistor 34aO other end is connected to operational amplifier IH4bO non-inverting input, output of 0 amplification @34bO is unified to the base of transistor 34e, skeleton transistor 34
Electrician construction is current detection resistor 3440-1lI example resistor 3
4.〇One end of Kli continuation of the electric current m detection paper ° is connected to the inverting input of the amplifier 34b◎The above 34@O collector is the main control 1i1ii! It is connected to the @ID output terminal, and a capacitor +34f is inserted between the transistor 34@0 pace and the collector 0 to prevent oscillation.

２８はタロツク回路で８秒６屑期（［形＃ＩＬｔ発生す
石０ＡＮＤゲート２９は前配振−判別回路２７の出力信
号すが１１１のと亀はそのままアップダウンカウンタ３
０のクロック入力にり四ツク回路２１４０クロックパル
スを接続し、その出方信号すが１０＃の場合にはこれｔ
ｌｌ止する。アップダウンカウンタ３０は前記振−判別
ＦｊｊＡ１１２７の出力信号ａが％１１のときアップカ
ウントし、１０＃のときダウンカウントする。振１判別
回−２７１０出力信号すが％　ｌ　’Ｏときはその壕ま
カウント１作をし、１０＃のときはａ信号の如何に拘ら
ず前カウント数を保持する。該アップダウンカウンタ３
ｏはｓ　ｂｉｔの出力を出力する。Ｄ−Ａ変換器３１は
Ｒ−２Ｒツダー型のＤ−Ａ変換器で、２進コード量に比
例した電圧を出力する。Ｄ−Ａ変換器３１の出力は抵抗
３２を介して駆動回路３５の入力に接続される〇この場
合アイドルスイッチ２５が閉成さ扛てぃ石と、スイッチ
ａ＠３３のトランジスタ３３ａｉｊオツのためＤ−ム変
換器３１の出力はそのまま駆動回路３４に印加される。28 is the tarok circuit, and the 8 second 6 waste period ([form #ILt generated stone 0 AND gate 29 is the output signal of the previous distribution-discrimination circuit 27.
Connect the four clock circuit 2140 clock pulse to the clock input of 0, and if the output signal is 10#, this is t.
ll stop. The up/down counter 30 counts up when the output signal a of the swing determination FjjA 1127 is %11, and counts down when it is 10#. Shake 1 discrimination time - 2710 output signal Suga % l 'When O, one count is made for that groove, and when 10#, the previous count number is held regardless of the a signal. The up/down counter 3
o outputs the output of s bit. The D-A converter 31 is an R-2R type D-A converter, and outputs a voltage proportional to the amount of binary code. The output of the D-A converter 31 is connected to the input of the drive circuit 35 via the resistor 32. In this case, the idle switch 25 is closed and the transistor 33a of the switch a@33 is connected to the D. The output of the -me converter 31 is applied as is to the drive circuit 34.

しかしアイドルスイッチ２５がオフの場合はトランジス
タ８３ｍはオンとｔｋｌ、Ｄ−直変換ｌ１１１の出力は
阻止され、駆動回路３４０入力電圧はほぼＯｖとなる。However, when the idle switch 25 is off, the transistor 83m is turned on and tkl, the output of the D-DC converter l111 is blocked, and the input voltage of the drive circuit 340 becomes approximately Ov.

本制御回路２６はアイドルスイッチ２４が閉成している
と自作−し、開放しているとき作動しない・駆動回路３
４は入力電圧に比例した電ｇＬ會トランジスタ３４＠Ｋ
［す。増幅器３４ｂの非反転入力には前記Ｄ−Ａ変換器
３１からの電圧が印加されゐ◎一方電流検出抵抗３４ｄ
の電圧が増幅器８４ｂｔ）反転入力に印加される口反転
入力に印加され為電圧が非反転入力に印加される電圧に
勢しくなるようにトランジスタＢ４ｃのコレクターエミ
ッタＫＲｆＬゐ電流が制御されるので前記り一ム蜜換器
３１からの電圧に比例した電流が得れる◎つまり比例ソ
レノイド１９のコイル２１の？Ｉ［ｉＥとなる°０ 制御回路２６の全体的な作動管説明すると、燃焼最大圧
力が設定した圧力値以上の場合には一定周期毎に副絞り
弁開度を一定開度ずつ閉じていき、設定圧力値に満たな
い場合には副絞り弁開度を前記一定開度ずつ開いてい＜
ｏＬかし燃焼最大圧力が設愈圧力値Ｖｒ±ΔＶＯＩＩ＃
ＪＫある場合には副絞９弁開度はそのままの状態を保持
する。This control circuit 26 is self-made when the idle switch 24 is closed, and does not operate when it is open.・Drive circuit 3
4 is a current gL transistor 34@K that is proportional to the input voltage.
[vinegar. The voltage from the D-A converter 31 is applied to the non-inverting input of the amplifier 34b, while the current detection resistor 34d
The collector-emitter current of the transistor B4c is controlled so that the voltage applied to the inverting input of the amplifier 84bt) becomes stronger than the voltage applied to the non-inverting input. A current proportional to the voltage from the one-meter honey exchanger 31 can be obtained. In other words, the coil 21 of the proportional solenoid 19? I[iE becomes °0 Overall operating pipe of the control circuit 26 To explain, when the maximum combustion pressure is higher than the set pressure value, the sub-throttle valve opening is closed by a fixed opening at fixed intervals, If the set pressure value is not reached, the sub-throttle valve opening is opened by the above-mentioned constant opening.
oL maximum combustion pressure is set pressure value Vr±ΔVOII#
If JK is present, the opening degree of the sub-throttle 9 valve remains unchanged.

以上（１：）Ｘ　５に本発明によれば吸気絞り弁と燃焼
室圧カセンサ會備えることにより、最大燃焼重圧力Ｏ設
定値に応じた吸気絞１弁開腹となるので、エンジン状態
に影響を与える大気圧、温度等が変化してもそれに応じ
ｔ絞り弁開度が得られるので閉じすぎること、開けすぎ
ゐことがなく補償装置を必要としない。さらに副吸気絞
９弁を別に設けてあ石ので開度π対す為空気量を精度よ
く制御で１！石。According to the above (1:) Even if the applied atmospheric pressure, temperature, etc. change, the opening degree of the throttle valve can be obtained accordingly, so it will not close too much or open too much, and no compensating device is required. In addition, 9 sub-intake throttle valves are separately provided to accurately control the air volume to match the opening π. stone.

【図面の簡単な説明】[Brief explanation of the drawing]

＠１図は本発明ＫかかるディーゼルエンジンＯ吸気絞り
の電子制御システムの１実施例のシステム図、第２図は
第１図における実施例のブロック図、第３図および！￥
４図はＦ２１５Ｆのブロック図の動作１に説明するため
の図でああ。 ５ａ・・・・・・主吸気通路、５ｂ・・・・・・副吸気
；！！Ｊ略、１２１ｋ・・・・・・主吸気数シ弁、１２
ｂ・・・・・・副吸゛気絞り弁、】】・・・・・・圧力
センサ、２４・・・・・・アイドルスイッチ、１９・・
・・・・アクチェータ、２５・・・・・・回転角度セシ
サ、２７・・・・・・圧力判別回路、３０・・・・・・
アップダウンカウンタ、３］・・・・・・ＤＡ変換器、
３３・・・・・・スイッチ回路、３４・・・・・・駆動
回路。 特許出願人 株式会社日本自動市部品総合研究所 特許出願代理人 弁理士　青　木　　　　朗 弁１士　西　舘　和　之 弁理士　山　口　昭　之@ Figure 1 is a system diagram of one embodiment of the electronic control system for diesel engine O intake throttle according to the present invention, Figure 2 is a block diagram of the embodiment shown in Figure 1, Figure 3, and! ￥
Figure 4 is a diagram for explaining operation 1 of the block diagram of the F215F. 5a...Main intake passage, 5b...Sub-intake;! ! J omitted, 121k... Main intake number valve, 12
b... Sub-intake throttle valve, ]]... Pressure sensor, 24... Idle switch, 19...
... Actuator, 25 ... Rotation angle secessor, 27 ... Pressure discrimination circuit, 30 ...
Up/down counter, 3]...DA converter,
33... Switch circuit, 34... Drive circuit. Patent Applicant Japan Automobile Parts Research Institute Co., Ltd. Patent Application Agent Roben Aoki 1st Patent Attorney Kazuyuki Nishidate Patent Attorney Akira Yamaguchi

Claims (1)

【特許請求の範囲】[Claims] 吸気管に敏拳弁を設けたディーゼルエンジンにおいて、
エンジンＯ負荷検出手段と憾鉤意内ＯＥ）力検幽手Ｒ１
ｋ備゛え％憾鉤富円０圧力が設定値になるように前記絞
９弁を開閉することを特徴としたディーイルエンジン０
吸気絞ヤの電子制御システム・In a diesel engine equipped with a smart valve in the intake pipe,
Engine O load detection means and OE) Power test R1
A diesel engine 0 characterized in that the nine throttle valves are opened and closed so that the pressure becomes a set value.
Electronic control system for intake throttle
JP56118523A 1981-07-30 1981-07-30 Electronic control system for throttle of intake in diesel engine Pending JPS5820939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56118523A JPS5820939A (en) 1981-07-30 1981-07-30 Electronic control system for throttle of intake in diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56118523A JPS5820939A (en) 1981-07-30 1981-07-30 Electronic control system for throttle of intake in diesel engine

Publications (1)

Publication Number Publication Date
JPS5820939A true JPS5820939A (en) 1983-02-07

Family

ID=14738714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56118523A Pending JPS5820939A (en) 1981-07-30 1981-07-30 Electronic control system for throttle of intake in diesel engine

Country Status (1)

Country Link
JP (1) JPS5820939A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62210238A (en) * 1986-03-10 1987-09-16 Nippon Denso Co Ltd Suction control device for diesel engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62210238A (en) * 1986-03-10 1987-09-16 Nippon Denso Co Ltd Suction control device for diesel engine

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