JPH0361023B2 - - Google Patents

Info

Publication number
JPH0361023B2
JPH0361023B2 JP59088472A JP8847284A JPH0361023B2 JP H0361023 B2 JPH0361023 B2 JP H0361023B2 JP 59088472 A JP59088472 A JP 59088472A JP 8847284 A JP8847284 A JP 8847284A JP H0361023 B2 JPH0361023 B2 JP H0361023B2
Authority
JP
Japan
Prior art keywords
internal combustion
control unit
combustion engine
main body
adjustment element
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 - Lifetime
Application number
JP59088472A
Other languages
Japanese (ja)
Other versions
JPS60233355A (en
Inventor
Hidekazu Oshizawa
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.)
Bosch Corp
Original Assignee
Diesel Kiki Co Ltd
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 Diesel Kiki Co Ltd filed Critical Diesel Kiki Co Ltd
Priority to JP8847284A priority Critical patent/JPS60233355A/en
Publication of JPS60233355A publication Critical patent/JPS60233355A/en
Publication of JPH0361023B2 publication Critical patent/JPH0361023B2/ja
Granted 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
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • 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)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、内燃機関の運転状態を電子的に制御
するようにした電子制御式内燃機関装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electronically controlled internal combustion engine device that electronically controls the operating state of an internal combustion engine.

従来の技術 電子制御式内燃機関装置には、一般に、燃料調
節部材の如き所要の調節部材を操作するためのア
クチエータが設けられており、内燃機関本体とは
別体に設けられた制御ユニツトにおいて、内燃機
関が所要の特性で運転されるのに必要な制御信号
が演算され、その演算結果得られた制御信号が所
定の接続ケーブルを介してアクチエータに印加さ
れる構成となつている。従つて、制御ユニツト内
での演算は組合される内燃機関の特性及び接続ケ
ーブルのばらつき等を考慮しなければならず、こ
のため、ポテンシヨメータ又はスイツチの如き補
正用の素子が制御ユニツト内に配設され、その時
組合される機関毎に補正用素子の調節を行つてい
た（例えば実開昭58−79035号公報参照）。このた
め、修理のために制御ユニツト又は付加装置の交
換を行なうと、再度補正素子の調整を行なわなけ
ればならず、保守、点検のコストが高くならざる
を得ないという不具合があつた。BACKGROUND ART An electronically controlled internal combustion engine apparatus is generally provided with an actuator for operating a required adjustment member such as a fuel adjustment member, and in a control unit provided separately from the internal combustion engine main body, A control signal necessary for operating the internal combustion engine with desired characteristics is calculated, and the control signal obtained as a result of the calculation is applied to the actuator via a predetermined connection cable. Therefore, calculations within the control unit must take into account the characteristics of the internal combustion engine to be combined and variations in the connecting cables, etc. For this reason, correction elements such as potentiometers or switches are included in the control unit. The correction element was adjusted for each engine that was installed and combined at the time (see, for example, Japanese Utility Model Application Publication No. 79035/1983). For this reason, when the control unit or the additional device is replaced for repair, the correction element must be adjusted again, resulting in a problem that maintenance and inspection costs inevitably increase.

この不具合を改善するため、例えば、デイーゼ
ル機関用の燃料噴射装置において、ポンプ側の電
気回路に接続されたコネクタ内に調整素子を内蔵
せしめ、この調節素子により制御ユニツトによる
制御信号をその噴射装置の個有の特性に従つて補
正する構成としたものが提案されている（特開昭
57−168030号公報）。この構成によれば、調整素
子がその燃料噴射ポンプの特性に従つてセツトさ
れているので制御ユニツトを交換しても、調整素
子を再調整する必要はないが、噴射ポンプの交換
を行つた場合にはやはり調整素子の再調整が必要
であつた。 In order to improve this problem, for example, in a fuel injection system for a diesel engine, an adjustment element is built into the connector connected to the electric circuit on the pump side, and this adjustment element allows the control signal from the control unit to be sent to the injection system. A configuration has been proposed that makes corrections according to unique characteristics (Japanese Patent Application Laid-Open No.
57-168030). According to this configuration, since the adjustment element is set according to the characteristics of the fuel injection pump, there is no need to readjust the adjustment element even if the control unit is replaced. It was still necessary to readjust the adjustment element.

発明の目的 本発明の目的は、従つて、一旦調整したのち
は、調整素子を内燃機関に付設される制御ユニツ
ト、燃料噴射ポンプの如き部材を交換しても調整
素子の再調整なしに所要の運転特性を得ることが
できるようにした、取り扱いに優れた電子制御式
内燃機関装置を提供することにある。OBJECT OF THE INVENTION The object of the present invention is, therefore, that, once adjusted, the adjustment element can be adjusted as required without readjustment even if parts such as a control unit attached to an internal combustion engine or a fuel injection pump are replaced. An object of the present invention is to provide an electronically controlled internal combustion engine device that is easy to handle and that allows the user to obtain various operating characteristics.

構 成 本発明は、内燃機関本体と、所要の調節部材を
操作するためのアクチエータを含み上記内燃機関
本体に連結される付加装置と、上記内燃機関本体
が所要の運転特性に従つて運転されるよう上記ア
クチエータを制御するための制御信号を出力する
制御ユニツトと、上記内燃機関本体の特性のばら
つきを調整するため上記制御ユニツトに接続され
る調整手段とを備えてなり、該調整手段が上記付
加装置及び上記制御ユニツトと別体になつてお
り、上記内燃機関本体側に固定されている点に特
徴を有する。Configuration The present invention provides an internal combustion engine main body, an additional device including an actuator for operating a required adjustment member and connected to the internal combustion engine main body, and an additional device that operates the internal combustion engine main body in accordance with required operating characteristics. a control unit that outputs a control signal for controlling the actuator, and an adjusting means connected to the control unit for adjusting variations in characteristics of the internal combustion engine main body, the adjusting means controlling the additional actuator. It is characterized in that it is separate from the device and the control unit, and is fixed to the internal combustion engine main body side.

作 用 このような構成によれば、調整素子が付加装置
及び制御ユニツトとは別体となつており、且つ、
内燃機関本体側の適宜の箇所に設けられるので、
内燃機関本体を含んで構成される制御系の特性を
該調整素子により一旦所要の特性にセツトしてし
まえば、その後の修理等の際に付加装置又は制御
ユニツトを同一規格のものと交換しても、交換さ
れる各装置等が所定の規格に調整されている限
り、総合特性調整用である調整素子を調整するこ
となしに、そのまま所要の特性にて機関の運転を
行なうことができる。Effect According to such a configuration, the adjustment element is separate from the additional device and the control unit, and
Since it is installed at an appropriate location on the internal combustion engine body side,
Once the characteristics of the control system that includes the internal combustion engine body are set to the required characteristics using the adjustment element, the additional equipment or control unit can be replaced with one of the same standard during subsequent repairs. However, as long as each device to be replaced is adjusted to a predetermined standard, the engine can be operated with the desired characteristics without adjusting the adjustment element for adjusting the overall characteristics.

尚、調整素子に、付加装置、制御ユニツト等の
交換によつても取り外ずされることのない適宜の
箇所、例えばワイヤーハーネス上に設けることが
できる。 It should be noted that the adjustment element can be provided at a suitable location, such as on a wire harness, so that it will not be removed even when an additional device, control unit, etc. is replaced.

実施例 以下図面を参照しながら本発明の一実施例につ
いて説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.

第１図には、本発明による電子制御式デイーゼ
ル機関装置１が示されている。第１図において２
はデイーゼル機関、３はデイーゼル機関１に燃料
を噴射供給するための燃料噴射ポンプ、４は燃料
噴射ポンプ３のコントロラツク５に連結されてい
るアクチエータ６を駆動制御するための制御ユニ
ツトである。燃料噴射ポンプ３は、デイーゼル機
関２により駆動され、燃料噴射ポンプ３から圧送
される燃料は噴射管７乃至１０を介してデイーゼ
ル機関２の各シリンダに供給される。燃料噴射ポ
ンプ３は、制御ユニツト４からの制御信号に従つ
てその噴射量が制御されるように構成されてお
り、このため、制御ユニツト４には、デイーゼル
機関２に設けられ機関の運転状態を示す信号を出
力する各種センサ（図示せず）からの信号が接続
ケーブル１１を介して入力されると共に、燃料噴
射ポンプ３側の電気回路と制御ユニツト４とは、
ワイヤーハーネス１２を介して接続される構成と
なつている。従つて、燃料噴射ポンプ３内に設け
られている図示しないセンサ（例えば噴射開始タ
イミングセンサ等）からの信号がワイヤーハーネ
ス１２を介して制御ユニツト４に入力されると共
に、制御ユニツト４から出力されるアクチエータ
用の駆動制御信号はこのワイヤーハーネス１２を
介して噴射ポンプ３側に送られる。 FIG. 1 shows an electronically controlled diesel engine system 1 according to the invention. In Figure 1, 2
3 is a fuel injection pump for injecting and supplying fuel to the diesel engine 1; 4 is a control unit for driving and controlling an actuator 6 connected to a controller 5 of the fuel injection pump 3; The fuel injection pump 3 is driven by the diesel engine 2, and the fuel pumped from the fuel injection pump 3 is supplied to each cylinder of the diesel engine 2 via injection pipes 7 to 10. The fuel injection pump 3 is configured so that its injection amount is controlled in accordance with a control signal from a control unit 4. Therefore, the control unit 4 is provided with information on the diesel engine 2 that controls the operating state of the engine. Signals from various sensors (not shown) that output signals shown are inputted via the connection cable 11, and the electric circuit on the fuel injection pump 3 side and the control unit 4 are connected to each other.
It is configured to be connected via a wire harness 12. Therefore, a signal from a sensor (not shown) provided in the fuel injection pump 3 (for example, an injection start timing sensor, etc.) is input to the control unit 4 via the wire harness 12, and is also output from the control unit 4. A drive control signal for the actuator is sent to the injection pump 3 via this wire harness 12.

制御ユニツト４をデイーゼル機関２及び噴射ポ
ンプ３から容易に切離せるようにするため、制御
ユニツト４の機関側接続ケーブル１３と接続ケー
ブル１１とは一対のコネクタ１４，１５により着
脱自在に接続されている。一方、制御ユニツト４
のポンプ側ケーブル１６とワイヤーハーネス１２
との間にも同様の趣旨で一対のコネクタ１７，１
８が設けられており、ワイヤーハーネス１２と燃
料噴射ポンプ３のケーブル１９との間にも同様に
一対のコネクタ２０，２１が設けられている。 In order to easily disconnect the control unit 4 from the diesel engine 2 and the injection pump 3, the engine side connection cable 13 and the connection cable 11 of the control unit 4 are detachably connected by a pair of connectors 14 and 15. There is. On the other hand, the control unit 4
Pump side cable 16 and wire harness 12
A pair of connectors 17, 1 is also connected between the
Similarly, a pair of connectors 20 and 21 are provided between the wire harness 12 and the cable 19 of the fuel injection pump 3.

これにより、コネクタ１５，１８を対応するコ
ネクタ１４，１７から外すことにより制御ユニツ
ト４を装置１から簡単に取り外すことができるほ
か、コネクタ２１をコネクタ２０から外すことに
より燃料噴射ポンプ３の取り外しも簡単に行なう
ことができる。 As a result, the control unit 4 can be easily removed from the device 1 by removing the connectors 15 and 18 from the corresponding connectors 14 and 17, and the fuel injection pump 3 can also be easily removed by removing the connector 21 from the connector 20. can be done.

制御ユニツト４では、デイーゼル機関２及び燃
料噴射ポンプ３の所定の規格に基づいて所望の運
転特性を得るために必要な制御演算が行なわれる
が、デイーゼル機関２及びワイヤーハーネス１２
の特性のばらつきのために生じる制御誤差を補正
する目的で、可変抵抗器２２ａ乃至２２ｃを含ん
で成る調整素子２３がワイヤーハーネス１２側に
設けられており、この調整素子２３は、ケーブル
２４を介してコネクタ１７に接続され、コネクタ
１８及びポンプ側ケーブル１６を介して制御ユニ
ツト４に接続される。 The control unit 4 performs control calculations necessary to obtain desired operating characteristics of the diesel engine 2 and the fuel injection pump 3 based on predetermined standards.
An adjustment element 23 including variable resistors 22a to 22c is provided on the wire harness 12 side for the purpose of correcting control errors caused by variations in characteristics. It is connected to the connector 17 via the connector 18 and the pump side cable 16 to the control unit 4.

尚、符号２５で示されるのは、アクセルペダル
２６の操作量を示すアクセル信号を出力するセン
サであり、このアクセル信号は接続ケーブル１１
を介して制御ユニツト４に送られる。 Note that reference numeral 25 indicates a sensor that outputs an accelerator signal indicating the amount of operation of the accelerator pedal 26, and this accelerator signal is transmitted to the connecting cable 11.
is sent to the control unit 4 via.

調整素子２３は、第２図に実線で示される所要
のフルＱ特性が点線で示される如くずれている場
合に、これを補正する目的で設けられている。こ
の実施例では、可変抵抗器２２ａは第２図中Ｎ＝
N1のＱ補正量を調整し、可変抵抗器２２ｂはＮ
＝N2のＱの補正量を調整し、可変抵抗器２２ｃ
はＮ＝N3のＱの補正量を調整する構成となつて
いる。 The adjustment element 23 is provided for the purpose of correcting a deviation in the required full-Q characteristic shown by the solid line in FIG. 2 as shown by the dotted line. In this embodiment, the variable resistor 22a is N=
Adjust the Q correction amount of N1 , and adjust the variable resistor 22b to N1.
=N Adjust the Q correction amount of 2 , and adjust the variable resistor 22c.
is configured to adjust the amount of Q correction where N= N3 .

第３図には、これらの可変抵抗器２２ａ，２２
ｂ，２２ｃを含む噴射量調整部の要部が詳細に示
されている。可変抵抗器２２ａ，２２ｂ，２２ｃ
の各一端は共通に接続され、ケーブル１６内のア
ース線１６ａにコネクタ１７，１８を介して接続
されている。可変抵抗器２２ａ，２２ｂ，２２ｃ
の各他端は、ワイヤ１６ｂ，１６ｃ，１６ｄを介
して、各一端が電源＋Ｖに接続されている抵抗器
２７，２８，２９の各他端に夫々接続されてお
り、これにより、可変抵抗器２２ａ，２２ｂ，２
２ｃの各両端に発生する電圧V1，V2，V3は、制
御ユニツト４内の制御回路部３０に印加される。
このように、調整素子２３は、ケーブル２４を介
してワイヤハーネス１２側のコネクタ１７に接続
されており、このコネクタ１７及びコネクタ１
８、ケーブル１６を介して制御ユニツト４に接続
され、調整素子２３はワイヤーハーネス１２に適
宜の手段で固定される構成となつている。即ち、
調整素子２３は第１図中一点鎖線で囲まれた点
検、修理等の際に交換されることが殆んどない領
域内のワイヤーハーネス１２上に、制御ユニツト
４とは独立して設けられており、この調整素子２
３内の可変抵抗器２２ａ，２２ｂ，２２ｃの抵抗
値を調整することにより制御回路部３０に印加さ
れる電圧V1，V2，V3の値に従つて、噴射量制御
特性が補正される構成となつている。 In FIG. 3, these variable resistors 22a, 22
Main parts of the injection amount adjusting section including b and 22c are shown in detail. Variable resistors 22a, 22b, 22c
One end of each is connected in common to a ground wire 16a in the cable 16 via connectors 17 and 18. Variable resistors 22a, 22b, 22c
The other ends of the variable resistors are connected via wires 16b, 16c, and 16d to the other ends of resistors 27, 28, and 29, each of which has one end connected to the power supply +V. 22a, 22b, 2
The voltages V 1 , V 2 , V 3 generated across each of the terminals 2c are applied to the control circuit section 30 in the control unit 4.
In this way, the adjustment element 23 is connected to the connector 17 on the wire harness 12 side via the cable 24, and the connector 17 and the connector 1
8. It is connected to the control unit 4 via a cable 16, and the adjustment element 23 is configured to be fixed to the wire harness 12 by appropriate means. That is,
The adjustment element 23 is provided independently of the control unit 4 on the wire harness 12 in an area surrounded by a chain line in FIG. 1 that is rarely replaced during inspections, repairs, etc. This adjustment element 2
By adjusting the resistance values of the variable resistors 22a, 22b, and 22c in the control circuit section 30, the injection amount control characteristics are corrected according to the values of the voltages V1 , V2 , and V3 applied to the control circuit section 30. It is structured as follows.

この補正操作を第４図に基づいて説明する。第
４図は、横軸に可変抵抗器２２ａ，２２ｂ，２２
ｃの抵抗値Ｒをとり、縦軸に噴射量の補正値△Ｑ
をとつたグラフである。図示の例では、Ｒ＝R1
のときに補正量が△Q1で、Ｒ＝R2のときに補正
量が−△Q2となる様子が示されている。従つて、
第４図から、その他の任意の補正量に対して必要
な抵抗値を定めることができる。 This correction operation will be explained based on FIG. 4. In FIG. 4, the horizontal axis shows variable resistors 22a, 22b, 22.
The resistance value R of c is taken, and the correction value △Q of the injection amount is plotted on the vertical axis.
This is a graph with . In the illustrated example, R=R 1
It is shown that the correction amount is ΔQ 1 when , and -ΔQ 2 when R=R 2 . Therefore,
From FIG. 4, it is possible to determine the necessary resistance value for any other correction amount.

例えば、第２図に示される例では、Ｎ＝N3に
おける必要補正量は＋△Qaであるから、第４図
から、可変抵抗器２２ａはRaにすればよいこと
が判る。他の可変抵抗器２２ｂ，２２ｃも、第４
図に示す特性図から同様にしてその調整値を得る
ことができる。 For example, in the example shown in FIG. 2, the necessary correction amount when N=N 3 is +ΔQa, so it can be seen from FIG. 4 that the variable resistor 22a should be set to Ra. The other variable resistors 22b and 22c also have a fourth
The adjustment value can be similarly obtained from the characteristic diagram shown in the figure.

尚、本実施例では、調整用の可変抵抗器が３つ
だけの場合を示したが、第２図に示される所要の
特性曲線上に設定される調整点の数に応じて所要
の数だけ設けてもよく、また、調整用の素子は可
変抵抗器に限定されず、他の素子、例えば固定抵
抗器、可変コンデンサ、可変インダクタンス或る
いはスイツチ等であつてもよい。 In this example, the case where there are only three variable resistors for adjustment is shown, but the number of variable resistors for adjustment may be as many as required depending on the number of adjustment points set on the required characteristic curve shown in FIG. Further, the adjustment element is not limited to the variable resistor, but may be other elements such as a fixed resistor, variable capacitor, variable inductance, or switch.

このような構成によると、デイーゼル機関２の
特性のばらつきを調整素子２３により上述の如く
して補正することができる。この調整素子２３の
調整値は機関固有の値であるが、調整素子２３は
ワイヤーハーネス１２と一緒であり、デイーゼル
機関２と別々になることがない。従つて、所定の
同一規格の制御ユニツト又は燃料噴射ポンプを現
用のものと交換したとしても、デイーゼル機関２
のばらつきに関する情報は、この調整素子２３に
よつて制御ユニツト４に与えることができるの
で、制御ユニツト及び又は燃料噴射ポンプの交換
を行なつて再調整の必要はなく、頗る便利であ
る。 With such a configuration, variations in the characteristics of the diesel engine 2 can be corrected by the adjustment element 23 as described above. Although the adjustment value of this adjustment element 23 is a value unique to the engine, the adjustment element 23 is the same as the wire harness 12 and is not separated from the diesel engine 2. Therefore, even if the control unit or fuel injection pump of the same predetermined standard is replaced with the current one, the diesel engine 2
Since information regarding the variation in the fuel injection pump can be provided to the control unit 4 by means of the adjusting element 23, there is no need for readjustment by replacing the control unit and/or the fuel injection pump, which is very convenient.

上記説明から判るように、調整素子２３の固定
箇所はワイヤーハーネス１２上に限定されるもの
ではなく、第１図中一点鎖線で囲まれた領域内の
任意の箇所、例えばケーブル１１上であつてもよ
い。 As can be seen from the above description, the fixing location of the adjustment element 23 is not limited to the wire harness 12, but may be any location within the area surrounded by the dashed line in FIG. 1, for example, on the cable 11. Good too.

更に、上記実施例では、各特性調整点毎に設け
た可変抵抗器によつて特性の補正を行なう構成を
示したが、制御回路部３０内にROMを設け、こ
のROM内に予め定められた多数の特性曲線はデ
ータをストアしておき、外付けされた固定抵抗器
を切換えることによりROMに与える電圧信号の
レベルを適宜変更し、これにより所要の特性曲線
が得られるように構成してもよい。 Furthermore, in the above embodiment, the configuration is shown in which the characteristics are corrected by a variable resistor provided at each characteristic adjustment point. It is also possible to store data for many characteristic curves and change the level of the voltage signal applied to the ROM as appropriate by switching an external fixed resistor, thereby obtaining the desired characteristic curve. good.

発明の効果 本発明によれば、上述の如く、調整素子が付加
装置及び制御ユニツトとは別体となつており、且
つ、内燃機関本体側の適宜の箇所に設けられてい
るので、内燃機関本体を含んで構成される制御系
の特性を該調整素子により一且所要の特性にセツ
トしてしまえば、その後の修理等の際に付加装置
又は制御ユニツトを同一規格のものと交換して
も、交換される各装置等が所定の規格に調整され
ている限り、総合特性演算用である調整素子を調
整することなしに、そのまま所要の特性にて機関
の運転を行なうことができる。従つて、制御ユニ
ツト、付加装置の交換時の再調整が不要となり、
頗る便利であり、保守費用の逓減を図ることがで
きる。Effects of the Invention According to the present invention, as described above, the adjustment element is separate from the additional device and the control unit, and is provided at an appropriate location on the internal combustion engine main body. Once the characteristics of the control system including the control system are set to the desired characteristics using the adjusting element, even if additional equipment or control units are replaced with ones of the same standard during subsequent repairs, etc. As long as each device to be replaced is adjusted to a predetermined standard, the engine can be operated with the desired characteristics without adjusting the adjustment element for calculating the overall characteristics. Therefore, there is no need for readjustment when replacing the control unit or additional equipment.
It is extremely convenient and can reduce maintenance costs.

また、上述の効果は、電子制御式デイーゼル機
関装置にのみ限定されるものではなく、他の電子
制御式内燃機関装置の場合にも本発明を同様にし
て適用することができ、同様の優れた効果を奏す
るものである。 Further, the above-mentioned effects are not limited to electronically controlled diesel engine devices, and the present invention can be similarly applied to other electronically controlled internal combustion engine devices, and the same excellent effects can be achieved. It is effective.

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

第１図は本発明の一実施例を示す概略構成図、
第２図は第１図に示した装置の噴射量特性曲線、
第３図は第１図の装置の要部の配線図、第４図は
第３図の回路の可変抵抗器の値と噴射量の補正量
との間の関係を示すグラフである。 １……電子制御式デイーゼル機関装置、２……
デイーゼル機関、３……燃料噴射ポンプ、４……
制御ユニツト、５……コントロールラツク、６…
…アクチエータ、１１……接続ケーブル、１２…
…ワイヤーハーネス、２２ａ，２２ｂ，２２ｃ…
…可変抵抗器、２３……調整素子。 FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention;
Figure 2 shows the injection amount characteristic curve of the device shown in Figure 1.
FIG. 3 is a wiring diagram of the main parts of the apparatus shown in FIG. 1, and FIG. 4 is a graph showing the relationship between the value of the variable resistor of the circuit shown in FIG. 3 and the correction amount of the injection amount. 1...Electronically controlled diesel engine device, 2...
Diesel engine, 3...Fuel injection pump, 4...
Control unit, 5... Control rack, 6...
...actuator, 11... connection cable, 12...
...Wire harness, 22a, 22b, 22c...
...variable resistor, 23...adjustment element.

Claims (1)

【特許請求の範囲】[Claims] １ 内燃機関本体と、所要の調節部材を操作する
ためのアクチエータを含み前記内燃機関本体に連
結される付加装置と、前記内燃機関本体が所要の
運転特性に従つて運転されるよう前記アクチエー
タを制御するための制御信号を出力する制御ユニ
ツトと、前記内燃機関本体の特性のばらつきを調
整するため前記制御ユニツトに接続される調整手
段とを備えて成り、該調整手段が前記付加装置及
び前記制御ユニツトと別体になつており、前記内
燃機関本体側に固定されていることを特徴とする
電子制御式内燃機関装置。1 an internal combustion engine main body, an additional device connected to the internal combustion engine main body including an actuator for operating a required adjustment member, and controlling the actuator so that the internal combustion engine main body is operated according to a desired operating characteristic; a control unit that outputs a control signal for controlling the internal combustion engine; and an adjusting means connected to the control unit for adjusting variations in characteristics of the internal combustion engine main body, and the adjusting means is connected to the additional device and the control unit. An electronically controlled internal combustion engine device, characterized in that the electronically controlled internal combustion engine device is separate from the internal combustion engine body and is fixed to the internal combustion engine main body side.
JP8847284A 1984-05-04 1984-05-04 Electron control type internal-combustion engine Granted JPS60233355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8847284A JPS60233355A (en) 1984-05-04 1984-05-04 Electron control type internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8847284A JPS60233355A (en) 1984-05-04 1984-05-04 Electron control type internal-combustion engine

Publications (2)

Publication Number Publication Date
JPS60233355A JPS60233355A (en) 1985-11-20
JPH0361023B2 true JPH0361023B2 (en) 1991-09-18

Family

ID=13943711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8847284A Granted JPS60233355A (en) 1984-05-04 1984-05-04 Electron control type internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS60233355A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616455A1 (en) * 1986-05-15 1987-11-19 Bosch Gmbh Robert CONTROL UNIT FOR COMBUSTION ENGINES
JP2857393B2 (en) * 1988-03-08 1999-02-17 株式会社日立製作所 Air flow detector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654928A (en) * 1979-10-11 1981-05-15 Toyota Motor Corp Electronic fuel injector for internal combustion engine
JPS57168030A (en) * 1981-04-09 1982-10-16 Diesel Kiki Co Ltd Electronic fuel injection device

Also Published As

Publication number Publication date
JPS60233355A (en) 1985-11-20

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