JPS6042193Y2 - Start increase control device in diesel engine fuel control device - Google Patents

Start increase control device in diesel engine fuel control device

Info

Publication number
JPS6042193Y2
JPS6042193Y2 JP10767377U JP10767377U JPS6042193Y2 JP S6042193 Y2 JPS6042193 Y2 JP S6042193Y2 JP 10767377 U JP10767377 U JP 10767377U JP 10767377 U JP10767377 U JP 10767377U JP S6042193 Y2 JPS6042193 Y2 JP S6042193Y2
Authority
JP
Japan
Prior art keywords
circuit
relay
control device
switch
auxiliary
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.)
Expired
Application number
JP10767377U
Other languages
Japanese (ja)
Other versions
JPS5434818U (en
Inventor
正美 伊藤
Original Assignee
トヨタ自動車株式会社
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 トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to JP10767377U priority Critical patent/JPS6042193Y2/en
Publication of JPS5434818U publication Critical patent/JPS5434818U/ja
Application granted granted Critical
Publication of JPS6042193Y2 publication Critical patent/JPS6042193Y2/en
Expired legal-status Critical Current

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  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Description

【考案の詳細な説明】 本案は燃料噴射制御装置を具えたディーゼルエンジンの
始動に際して、所定気温以上においては燃料の始動増量
を禁止する制御装置に関する。
[Detailed Description of the Invention] The present invention relates to a control device that prohibits an increase in the starting amount of fuel when the temperature is above a predetermined temperature when starting a diesel engine equipped with a fuel injection control device.

前記ディーゼルエンジンを始動させる場合、従来は気温
に関係なく燃料の始動増量を行っていたため、高温時に
は黒煙対策が問題となっていた。
Conventionally, when starting the diesel engine, the amount of starting fuel was increased regardless of the temperature, so countermeasures against black smoke became a problem at high temperatures.

本案はかかる現状を改善したディーゼルエンジンの始動
増量制御装置を提案することを目的とする。
The purpose of this proposal is to propose a starting increase control device for a diesel engine that improves the current situation.

以下本案の図示実施例について説明する。An illustrated embodiment of the present invention will be described below.

B。ST、 IGはキースイッチを操作したときに電源
に接続するそれぞれバッテリ回路、始動回路、及びイグ
ニッション回路を示し、始動時にはB。
B. ST and IG indicate the battery circuit, starting circuit, and ignition circuit, respectively, which are connected to the power source when the key switch is operated, and B at the time of starting.

ST、 ICの全回路を電源に接続腰始動完了後はB、
IGの両回路のみを電源に接続してエンジンを運転し、
エンジンを停止させる場合は更にIGの回路を切る。
ST, connect all the IC circuits to the power supply, and after the start is completed, B.
Run the engine by connecting only both IG circuits to the power supply,
If you want to stop the engine, also turn off the IG circuit.

Mは電機子電流の方向によって回路方向が変化する可逆
電動機で、正転時には図示しない燃料制御アームを燃料
増量方向に駆動し、逆転時には燃料減量方向に駆動する
M is a reversible motor whose circuit direction changes depending on the direction of the armature current, and when rotating in the forward direction, drives a fuel control arm (not shown) in the direction of increasing fuel quantity, and when rotating in reverse, drives it in the direction of decreasing fuel quantity.

R1は電動機Mの回路方向を制御する切換リレーで、常
開接点rlLr12と常閉接点r13.r14とを有す
る。
R1 is a switching relay that controls the circuit direction of the electric motor M, and has a normally open contact rlLr12 and a normally closed contact r13. r14.

R2は電動機Mが逆転しているときに発電制動回路を形
成するための制動用リレーで、常開接点r21と常閉接
点r22とを有する。
R2 is a braking relay for forming a dynamic braking circuit when the motor M is rotating in reverse, and has a normally open contact r21 and a normally closed contact r22.

R3,R4,R5はそれぞれ第1.第2.第3の補助リ
レーで、R3は常開接点r31と常閉接点r32.R4
は常開接点r41と常閉接点r42.R5は常閉接点r
5をそれぞれ有する。
R3, R4, and R5 are the first. Second. In the third auxiliary relay, R3 has a normally open contact r31 and a normally closed contact r32. R4
are the normally open contact r41 and the normally closed contact r42. R5 is a normally closed contact r
5 each.

またpはエンジンオイルが設定圧力以上に上昇したとき
に閉じる油圧スイッチ、tは所定気温以上において開く
温度スイッチ、dは回り止め用ダイオードである。
Also, p is a hydraulic switch that closes when the engine oil rises above a set pressure, t is a temperature switch that opens when the temperature is above a predetermined temperature, and d is a rotation prevention diode.

パターンスイッチPSは、電動機Mにより回転される絶
縁板■上にスイッチ板Sを固定し、これに固定接点CI
、C2,C3を摺接せしめたもので、回転位置すなわち
燃料の増減制御と関連して電動機Mの逆転回路m及び制
動用リレーの回路nを開閉する。
In the pattern switch PS, a switch plate S is fixed on an insulating plate ■ rotated by an electric motor M, and a fixed contact CI is attached to this.
.

パターンスイッチPSは燃料遮断によりエンジンが停止
したときは図示の回転位置イにあって回路m、nを開い
ている。
When the engine is stopped due to fuel cut-off, the pattern switch PS is in the rotational position A shown in the figure and opens circuits m and n.

次に本案の作用を説明する。Next, the effect of this proposal will be explained.

但し回路の各構成部分はその符号をもって表わす。However, each component of the circuit is represented by its symbol.

(1)機関始動に際しキースイッチをまわすとB。(1) B when turning the key switch to start the engine.

ST、 IGが共に電源に接続し、所定気温以下ならは
tは閉じているからR1が付勢する。
Both ST and IG are connected to the power supply, and if the temperature is below a predetermined temperature, R1 is energized because t is closed.

また始動初期ではpが開いているからR3は消勢し、r
32は閉じr31は開いている。
Also, at the initial stage of startup, p is open, so R3 is deenergized and r
32 is closed and r31 is open.

そのためR4はSTからdを介して付勢され、r41を
閉じ、r42を開く。
Therefore, R4 is energized from ST via d, closing r41 and opening r42.

したがって、R2は消勢状態にあってr21は開きr2
2は閉じているからR5が付勢しr5を開く。
Therefore, R2 is deenergized and r21 is open r2
Since R2 is closed, R5 is energized and R5 is opened.

上記リレー動作により、電動機Mには、B−正転回路]
−r 11−M−r 12の回路に電流が流れて電動機
Mが正転起動し、燃料を増量せしめると共に、PSを反
時計方向(矢印)に回転する。
Due to the above relay operation, the motor M has a B-normal rotation circuit]
-r 11 -M-r 12 A current flows through the circuit to start the electric motor M in normal rotation, increase the amount of fuel, and rotate the PS counterclockwise (arrow).

(2)燃料増量が進み燃料制御アームが燃料増量終点の
直前まで回動すると、PSは回転位置口に達する。
(2) When the fuel increase progresses and the fuel control arm rotates to just before the fuel increase end point, PS reaches the rotation position.

(3)更に燃料が増量して始動が完了したときPSは回
転位置ハに達し、また油圧上昇によりpが閉じる。
(3) When the amount of fuel increases further and starting is completed, PS reaches rotational position C, and p closes due to the increase in oil pressure.

これによりR3が付勢してr31が閉じr32が開く。This energizes R3, closing r31 and opening r32.

r31が閉じてもC1は開いているからR2は依然とし
て消勢状態にある。
Even if r31 is closed, C1 is open, so R2 is still in a deenergized state.

(4)ついてキースイッチを戻してB、ICのみを電源
に接続しSTの回路を切る。
(4) Return the key switch, connect only B and IC to the power supply, and turn off the ST circuit.

しかるときR1は消勢し、r11〜r14は図示の開閉
状態に戻るから、B−r 22−r 13−M−r 1
4−m−C2−C3の回路に電流が流れてMは逆転(時
計方向)に転する。
At that time, R1 is deenergized and r11 to r14 return to the open/closed state shown, so B-r 22-r 13-M-r 1
Current flows through the circuit 4-m-C2-C3, causing M to rotate in the opposite direction (clockwise).

(5)逆転によりPSが回転位置二に達すると、IC−
R2−r 31−n−c 1−c 3の回路が閉じてR
2が付勢腰r22が開きr21が閉じる。
(5) When PS reaches rotation position 2 due to reverse rotation, IC-
R2-r 31-n-c 1-c 3 circuit is closed and R
2 is biased, r22 opens and r21 closes.

これによりMの逆転回路への通電は止み、代ってr 2
1−r 13−M−r 14−m−c 2−C3−r2
1の閉回路が形成されて、Mは発電制動により急速に停
止する。
This stops energization to the reverse circuit of M, and instead r 2
1-r 13-M-r 14-m-c 2-C3-r2
1 is formed, and M is rapidly stopped by dynamic braking.

このときPSは回転位置ホにある。At this time, PS is at rotational position E.

この停止状態は燃料常置状態であり、エンジンは通常運
転状態となる。
This stopped state is a state in which fuel is permanently stored, and the engine is in a normal operating state.

(6)エンジンを停止するにはキースイッチを更に戻し
てIGの回路を切る。
(6) To stop the engine, return the key switch further and turn off the IG circuit.

しかるときR2は消勢してr21を開きr22を閉じる
At that time, R2 is deenergized, opening r21 and closing r22.

これにより発電制動回路が開き、再び(4)項の回路B
−r22−r 13−M−r 14−m−c 2−c
3が形成されてMは逆転起動をする。
As a result, the dynamic braking circuit opens, and circuit B in section (4)
-r22-r 13-M-r 14-m-c 2-c
3 is formed and M starts in reverse.

モしてPSが回転位置イに戻るとC2と03とが開いて
前記回路が開き、Mが停止する。
When PS returns to rotational position A, C2 and 03 are opened, the circuit is opened, and M is stopped.

上記のようにエンジンは所定気温以下においては燃料増
量の下に始動をする。
As mentioned above, when the temperature is below a predetermined temperature, the engine starts with increased fuel consumption.

しかし気温が所定値以上に上昇するとtは開く。However, when the temperature rises above a predetermined value, t opens.

したがってキースイッチの始動操作によりR5が付勢し
てr5が開けば((1)項)R1は付勢し得す、Mは正
転起動することができない。
Therefore, if R5 is energized and r5 is opened by the starting operation of the key switch (item (1)), R1 can be energized, but M cannot be started for normal rotation.

即ち燃料増量がなく常置状態でエンジンが始動する。That is, the engine starts in a permanent state without increasing the amount of fuel.

この場合PSは回転位置イに止まるからC1と03は開
いており、油圧上昇によりpが閉じてもR2は消勢状態
にあるが、C2と03も開いているからMは逆転起動す
ることもない。
In this case, PS stays at rotational position A, so C1 and 03 are open, and even if p closes due to the increase in oil pressure, R2 is deenergized, but since C2 and 03 are also open, M can start in reverse. do not have.

即ちtが開けばpは無効化される。本案は上記構成を有
腰寒冷地においてエンジンを始動する場合には油圧スイ
ッチpの作用により適当な燃料増量制御の下に始動をす
るが、燃料増量を必要としない気温即ち所定気温以上に
おいては油圧スイッチが作動してもその燃料増量制御作
用を断つので、不要の燃料増量による黒煙の発生を防止
しうる効果がある。
That is, if t is opened, p is invalidated. In this case, when starting the engine in a cold region, the engine is started under appropriate fuel increase control by the action of the oil pressure switch p. Even if the switch is operated, the fuel increase control action is cut off, which has the effect of preventing the generation of black smoke due to unnecessary fuel increase.

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

図面は本案の一実施例の電気回路図及びパターンスイッ
チの各回転位置を示す図である。 M・・・・・・電動機、R1・・・・・・切換リレー、
R2・・・・・・制動用リレー、R3・・・・・・第1
の補助リレー、R4・・・・・・第2の補助リレー、P
S・・・・・・パターンスイッチ、ST・・・・・・始
動回路、IG・・・・・・イグニッション回路、1・・
・・・・正転回路、m・・・・・・逆転回路、r5・・
・・・・リレー接点、t・・・・・・温度スイッチ、p
・・・・・・油圧スイッチ、d・・・・・・ダイオード
、r31・・・・・・第1の補助リレーの常開接点、r
32・・・・・・第1の補助リレーの常閉接点、r41
・・・・・・第2の補助リレーの常開接点、r42・・
・・・・第2の補助リレーの常閉接占
The drawings are diagrams showing an electrical circuit diagram and each rotational position of a pattern switch according to an embodiment of the present invention. M...Electric motor, R1...Switching relay,
R2... Braking relay, R3... First
Auxiliary relay, R4...Second auxiliary relay, P
S...Pattern switch, ST...Starting circuit, IG...Ignition circuit, 1...
...Forward rotation circuit, m...Reverse rotation circuit, r5...
...Relay contact, t...Temperature switch, p
......Oil pressure switch, d...Diode, r31...Normally open contact of the first auxiliary relay, r
32... Normally closed contact of the first auxiliary relay, r41
...Normally open contact of second auxiliary relay, r42...
...Second auxiliary relay normally closed

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 燃料制御アームを正転時には増量方向にまた逆転時には
減量方向に駆動する電動機と、キースイッチの始動回路
に接続し付勢時に電動機の正転回路を閉じ消勢時に電動
機の逆転回路を閉じる切換リレーと、キースイッチのイ
グニッション回路に接続し前記逆転時において付勢時に
電動機の発電制動回路を形成する制動用リレーと、電動
機により回転され前記逆転回路及び制動用リレーの回路
を開閉するパターンスイッチとを有する燃料噴射制御装
置において、切換リレーに前記逆転時に開くリレー接点
と所定気温以上において開く温度スイッチとの並列回路
を直接接続し、前記イグニッション回路にエンジンオイ
ルの設定圧力以上において閉じる油圧スイッチと第1の
補助リレーとを直列接続し、前記始動回路にダイオード
を介して第1の補助リレーの常閉接点と第2の補助IJ
l/−との直列回路を接続すると共に、該直列回路を
第2の補助リレーの常開接点を介して前記イグニッショ
ン回路に接続し、制動用リレーに第1の補助リレーの常
開接点と第2の補助リレーの常閉接点との並列回路を直
列接続することを特徴とする始動増量制御装置。
An electric motor that drives the fuel control arm in the increasing direction when rotating forward and decreasing direction when rotating reversely, and a switching relay that is connected to the starting circuit of the key switch and closes the motor's forward rotating circuit when energized and closes the motor's reverse circuit when deenergized. a braking relay connected to the ignition circuit of the key switch and forming a dynamic braking circuit for the electric motor when energized during the reverse rotation; and a pattern switch rotated by the electric motor to open and close the reversing circuit and the braking relay circuit. In the fuel injection control device, the switching relay is directly connected to a parallel circuit of a relay contact that opens when the reverse rotation occurs and a temperature switch that opens when the temperature exceeds a predetermined temperature, and a hydraulic switch that closes when the pressure of engine oil exceeds a set pressure of the engine oil is connected to the ignition circuit. The normally closed contact of the first auxiliary relay and the second auxiliary IJ are connected in series to each other through a diode to the starting circuit.
1/-, the series circuit is connected to the ignition circuit through the normally open contact of the second auxiliary relay, and the normally open contact of the first auxiliary relay and the normally open contact of the first auxiliary relay are connected to the braking relay. A starting increase control device characterized in that a parallel circuit with a normally closed contact of a second auxiliary relay is connected in series.
JP10767377U 1977-08-13 1977-08-13 Start increase control device in diesel engine fuel control device Expired JPS6042193Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10767377U JPS6042193Y2 (en) 1977-08-13 1977-08-13 Start increase control device in diesel engine fuel control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10767377U JPS6042193Y2 (en) 1977-08-13 1977-08-13 Start increase control device in diesel engine fuel control device

Publications (2)

Publication Number Publication Date
JPS5434818U JPS5434818U (en) 1979-03-07
JPS6042193Y2 true JPS6042193Y2 (en) 1985-12-24

Family

ID=29052006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10767377U Expired JPS6042193Y2 (en) 1977-08-13 1977-08-13 Start increase control device in diesel engine fuel control device

Country Status (1)

Country Link
JP (1) JPS6042193Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55137331A (en) * 1979-04-13 1980-10-27 Toyota Motor Corp Fuel injection device for diesel engine

Also Published As

Publication number Publication date
JPS5434818U (en) 1979-03-07

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