JPS5820939A - Electronic control system for throttle of intake in diesel engine - Google Patents
Electronic control system for throttle of intake in diesel engineInfo
- 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
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
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&
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.
@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)
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
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)
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 |
-
1981
- 1981-07-30 JP JP56118523A patent/JPS5820939A/en active Pending
Cited By (1)
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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