JPH03124928A - Knock sensor fitting structure to v-type engine - Google Patents

Knock sensor fitting structure to v-type engine

Info

Publication number
JPH03124928A
JPH03124928A JP26083989A JP26083989A JPH03124928A JP H03124928 A JPH03124928 A JP H03124928A JP 26083989 A JP26083989 A JP 26083989A JP 26083989 A JP26083989 A JP 26083989A JP H03124928 A JPH03124928 A JP H03124928A
Authority
JP
Japan
Prior art keywords
knock sensor
bracket
knock
bank
cylinder
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
JP26083989A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Miyake
光浩 三宅
Akira Takahashi
晃 高橋
Toru Hashimoto
徹 橋本
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.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
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 Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP26083989A priority Critical patent/JPH03124928A/en
Publication of JPH03124928A publication Critical patent/JPH03124928A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/16Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18Multi-cylinder engines
    • F02B75/22Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00Component parts, details or accessories, not otherwise provided for
    • F02B77/08Safety, indicating or supervising devices
    • F02B77/085Safety, indicating or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame

Abstract

PURPOSE:To correctly detect the knock state of individual banks with one knock sensor by suspending a connecting member between banks of a V-type engine, and fitting the knock sensor to the connecting member. CONSTITUTION:A screw hole 4E is formed at the intersection of diagonal lines for connecting bolt hole centers of boss sections 4A, 4D and 4B, 4C of a bracket 4, ribs 4F-4I for securing rigidity extending radially from here are formed, and a knock sensor 1 is screwed into the hole section 4E. The bracket 4 is fitted to a cylinder block wall face on one bank 2A side and the other bank 2B side at portions of boss sections 4A and 4B and portions of boss sections 4C and 4D via bolts 5. Vibrations generated by cylinders of banks 2A and 2B of a V-type six-cylinder engine E are transmitted to the bracket 4 from boss sections 4A-4D and detected by the knock sensor 1 at the center section. Individual cylinders have nearly the same knock detecting property in this way.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、V型エンジンへのノックセンサの取付構造に
関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure for mounting a knock sensor on a V-type engine.

[従来の技術] 従来より、例えば車載用V型エンジンEの場合、第5図
に示すごとく、バンク2A、2Bのいずれか一方にノッ
クセンサ1を取り付けるか、第6図に示すごとく、各バ
ンク2A、2BのそれぞれにノックセンサLA、IBを
取り付けている。
[Prior Art] Conventionally, for example, in the case of a vehicle-mounted V-type engine E, a knock sensor 1 is attached to either one of the banks 2A and 2B as shown in FIG. 5, or to each bank as shown in FIG. Knock sensors LA and IB are attached to 2A and 2B, respectively.

なお、第5,6図中の符号3はノックセンサ1;IA、
1Bからの信号を受けて点火時期を演算して点火時期制
御信号を出力する電子制御ユニット(ECU;コンピュ
ータ)である。
Note that the reference numeral 3 in FIGS. 5 and 6 indicates the knock sensor 1; IA;
This is an electronic control unit (ECU; computer) that receives a signal from 1B, calculates the ignition timing, and outputs an ignition timing control signal.

[発明が解決しようとする課jiff]しかしながら、
上記のような従来のV型エンジンへのノックセンサ取付
構造では、次のような問題点がある。
[Issues that the invention seeks to solve] However,
The conventional knock sensor mounting structure for a V-type engine as described above has the following problems.

まず、第5図に示すものでは、片バンクにのみノックセ
ンサ1を取り付けているので、コスト面では優れている
ものの、他方のバンクでのノック状態を正確に検出する
ことができず、これにより他方のバンクにおける気筒で
の点火時期制御の制御性を犠牲にせざるを得ないという
問題点がある。
First, in the case shown in Fig. 5, the knock sensor 1 is attached only to one bank, so although it is superior in terms of cost, it is not possible to accurately detect the knock state in the other bank. There is a problem in that the controllability of the ignition timing control for the cylinders in the other bank has to be sacrificed.

つぎに、第6図に示すものでは、各バンク2A。Next, in the case shown in FIG. 6, each bank 2A.

2BのそれぞれにノックセンサIA、IBを取り付けて
いるので、各バンクでのノック状態を正確に検出するこ
とができ、これによりいずれかのバンクにおける気筒で
の点火時期制御の制御性を犠牲しなくてもよいものの、
ノックセンサを2個使用しているので、コスト高を招く
いう問題点がある。
Since knock sensors IA and IB are installed in each of the 2Bs, it is possible to accurately detect the knock condition in each bank, without sacrificing the controllability of ignition timing control for the cylinders in either bank. Although it is possible,
Since two knock sensors are used, there is a problem in that the cost is high.

本発明は、上記のような問題点に鑑みなされたもので、
1つのノックセンサを用いても、各バンクでのノック状
態を正確に検出することができるようにした、V型エン
ジンへのノックセンサ取付構造を提供することを目的と
する。
The present invention was made in view of the above-mentioned problems.
It is an object of the present invention to provide a knock sensor mounting structure for a V-type engine, which enables accurate detection of the knock state in each bank even when one knock sensor is used.

[課題を解決するための手段] 上述の目的を達成するため、本発明のV型エンジンへの
ノックセンサ取付構造は、V型エンジンの各バンク間に
連結部材が装架され、該連結部材にノックセンサが取り
付けられていることを特徴としている。
[Means for Solving the Problems] In order to achieve the above-mentioned object, a knock sensor mounting structure for a V-type engine according to the present invention includes a connecting member mounted between each bank of the V-type engine, and a connecting member mounted on the connecting member. It is characterized by the fact that it is equipped with a knock sensor.

[作 用] 上述の本発明のV型エンジンへのノックセンサ取付構造
では、V型エンジンにおける各バンクの各気筒で生じた
振動は、連結部材へ伝えられて、更にはノックセンサに
て検出される。
[Function] In the knock sensor mounting structure for the V-type engine of the present invention described above, vibrations generated in each cylinder of each bank in the V-type engine are transmitted to the connecting member and further detected by the knock sensor. Ru.

[実施例] 以下、図面により本発明の一実施例としてのV型エンジ
ンへのノックセンサ取付構造について説明すると、第1
図はエンジンのシリンダヘッドを取り外した状態で本ノ
ックセンサ取付構造を示す平面図、第2図はエンジンの
シリンダヘッドを取り付けた状態で本ノックセンサ取付
構造を示す立面図、第3図はノックセンサ取付用ブラケ
ットの平面図、第4図はノックセンサ取付用ブラケット
の正面図である。
[Example] Hereinafter, a knock sensor mounting structure for a V-type engine as an example of the present invention will be explained with reference to the drawings.
The figure is a plan view showing the knock sensor mounting structure with the engine cylinder head removed, Figure 2 is an elevation view showing the knock sensor mounting structure with the engine cylinder head attached, and Figure 3 is the knock sensor mounting structure. FIG. 4 is a plan view of the sensor mounting bracket, and FIG. 4 is a front view of the knock sensor mounting bracket.

さて、本実施例は、車載用V型6気筒エンジンへノック
センサを取り付ける場合についてのものである。
Now, this embodiment relates to the case where a knock sensor is attached to a V-type 6-cylinder engine for use in a vehicle.

すなわち、第1図に示すごとく、V型6気筒エンジンE
は、第1,3.5気筒31,03.#5を有するバンク
2Aと、第2.4.6気筒#2゜#4.#6を有するバ
ンク2Bが相互に傾斜して連結されることによりV形を
呈しているが、これらの各バンク2A、2B間には、第
1,2図に示すように、ノックセンサ取付用のブラケッ
ト(連結部材)4が装架されている。
That is, as shown in Fig. 1, the V type 6 cylinder engine E
is the 1st, 3.5th cylinder 31, 03. Bank 2A with #5 and 2nd, 4th, and 6th cylinders #2° #4. The banks 2B having #6 are connected to each other at an angle to form a V-shape, and between each of these banks 2A and 2B, as shown in Figs. A bracket (connecting member) 4 is mounted.

ここで、このブラケット4は、第3,4図に詳細に示す
ように、やや弯曲形状をした金属製の部材として構成さ
れており、更にこのブラケット4の四隅部には、それぞ
れボルト穴付きのボス部4A、4B、4C,4Dが形成
されている。
As shown in detail in FIGS. 3 and 4, this bracket 4 is constructed as a metal member with a slightly curved shape, and each of the four corners of this bracket 4 has bolt holes. Boss portions 4A, 4B, 4C, and 4D are formed.

また、ブラケット4におけるボス部4A、4Dのボルト
穴中心間を結ぶ対角線と、ボス部4B。
Further, a diagonal line connecting the bolt hole centers of the boss portions 4A and 4D in the bracket 4 and the boss portion 4B.

4Cのボルト穴中心間を結ぶ対角線との交点部、即ちブ
ラケット4のほぼ中央部には、ノックセンサ取付用ねじ
穴部4Eが形成されており、更にこのねじ穴部4Eから
各ボス部近傍へ向は放射状に延びる剛性強化あるいは剛
性確保用のリブ4F。
A knock sensor mounting screw hole 4E is formed at the intersection with the diagonal line connecting the centers of the bolt holes 4C, that is, approximately at the center of the bracket 4, and further from this screw hole 4E to the vicinity of each boss. On the other hand are ribs 4F extending radially to strengthen or ensure rigidity.

4G、4H,4Iが形成されている。4G, 4H, and 4I are formed.

なお、ブラケット4の材質としては、例えば球状黒鉛鋳
鉄(FCD材)のように硬質のものがよく、本実施例で
は、FCD材の中の例えば炭素含有率50%のFCD5
0が使用されている。
The material of the bracket 4 is preferably a hard one such as spheroidal graphite cast iron (FCD material), and in this embodiment, FCD5 with a carbon content of 50%, for example, is used as the material for the bracket 4.
0 is used.

そして、このブラケット4は、上記のボス部4A、4B
の部分で、一方のバンク2A側のシリンダブロック壁面
にボルト5を介して取り付けられるとともに、上記のボ
ス部4C,4Dの部分で、他方のバンク2B側のシリン
ダブロック壁面にボルト5を介して取り付けられるよう
になっている。
And, this bracket 4 has the above-mentioned boss portions 4A and 4B.
It is attached to the wall surface of the cylinder block on the side of one bank 2A via the bolt 5 at the part, and the part of the boss parts 4C and 4D is attached to the wall surface of the cylinder block on the other bank 2B side via the bolt 5. It is now possible to

なお、シンンダブロックへの取付に際しては。In addition, when installing to the Cinda block.

ブラケット4のボス部4Aが第1気筒#1と第3気筒#
3との間に位置し、ブラケット4のボス部4Bが第3気
筒#3と第5気筒#5との間に位置するとともに、ブラ
ケット4のボス部4Cが第2気筒#2と第4気筒#2と
の間に位置し、ブラケット4のボス部4Dが第4気筒#
4と第6気筒#6との間に位置するようになっている(
第1図参照)。
The boss portion 4A of the bracket 4 connects the first cylinder #1 and the third cylinder #
The boss part 4B of the bracket 4 is located between the third cylinder #3 and the fifth cylinder #5, and the boss part 4C of the bracket 4 is located between the second cylinder #2 and the fourth cylinder #2, and the boss portion 4D of the bracket 4 is located between the fourth cylinder #2.
It is located between #4 and #6 cylinder #6 (
(See Figure 1).

さらに、上記ブラケット4のほぼ中央部に形成されたね
じ穴部4Eには、ノックセンサ1が螺入するようにして
取り付けられている。
Further, the knock sensor 1 is screwed into a screw hole 4E formed in the approximate center of the bracket 4.

なお、第1図中の矢印F方向がエンジン前方を示す。Note that the direction of arrow F in FIG. 1 indicates the front of the engine.

また、ノックセンサ1からの検出信号は、図示しないエ
ンジン回転数情報やエンジン負荷情報とともに、電子制
御ユニット3へ入力されるようになっており、これによ
り電子制御ユニット3は、ノックセンサ1からの信号や
エンジン回転数情報やエンジン負荷情報に基づいて点火
時期を演算して、点火時期制御信号を出力するようにな
っている(第2図参照)。
Further, the detection signal from the knock sensor 1 is input to the electronic control unit 3 together with engine rotation speed information and engine load information (not shown). The ignition timing is calculated based on the signal, engine speed information, and engine load information, and an ignition timing control signal is output (see Fig. 2).

上述の構成により、V型6気筒エンジンEにおける各バ
ンク2A、2Bの各気筒で生じた振動は、ボス部からブ
ラケット4へ伝えられて、更にほこのブラケット4のほ
ぼ中央部に取り付けられたノックセンサ1にて検出され
る。これにより、各気筒共はぼ同程度のノック検出性を
確保することができる。
With the above-mentioned configuration, vibrations generated in each cylinder of each bank 2A, 2B in the V-type 6-cylinder engine E are transmitted from the boss part to the bracket 4, and further to the knock mounted at the approximate center of the bracket 4. Detected by sensor 1. Thereby, it is possible to ensure almost the same level of knock detectability for each cylinder.

このように1つのノックセンサ1を用いても、各バンク
2A、2Bでのノック状態を正確に検出することができ
、これにより、コスト面で有利となるほか、いずれかの
バンク2A、2Bにおける気筒での点火時期制御の制御
性を犠牲しな(でもよいという効果を奏するものである
Even if one knock sensor 1 is used in this way, it is possible to accurately detect the knock state in each bank 2A, 2B. This has the effect of not sacrificing the controllability of ignition timing control in the cylinder.

なお、ブラケット4は各バンク2A、2Bのシリンダヘ
ッド間に装架してもよい。
Note that the bracket 4 may be mounted between the cylinder heads of each bank 2A, 2B.

また、ブラケット4は、シリンダブロックあるいはシリ
ンダヘッド鋳造時に、一体に作ってもよいものである。
Furthermore, the bracket 4 may be made integrally when the cylinder block or cylinder head is cast.

さらに、車載用■型6気筒エンジン以外の■型エンジン
に対しても、同様にして本発明を適用できることはいう
までもない。
Furthermore, it goes without saying that the present invention can be similarly applied to type 2 engines other than type 6 engines for vehicles.

[発明の効果] 以上詳述したように5本発明のV型エンジンへのノック
センサ取付構造によれば、■型エンジンの各バンク間に
連結部材が装架され、この連結部材にノックセンサが取
り付けられるという簡素な構成で、1つのノックセンサ
を用いても、各バンクでのノック状態を正確に検出する
ことができ、これによりコスト面で有利となるほか、い
ずれかのバンクにおける気筒での点火時期制御の制御性
を犠牲しなくてもよいという利点がある。
[Effects of the Invention] As detailed above, according to the knock sensor mounting structure for the V-type engine of the present invention, a connecting member is mounted between each bank of the ■-type engine, and the knock sensor is mounted on this connecting member. With a simple configuration that can be installed, it is possible to accurately detect the knock state in each bank even with a single knock sensor, which is advantageous in terms of cost. This has the advantage that the controllability of ignition timing control does not have to be sacrificed.

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

第1〜4図は本発明の一実施例としてのV型エンジンへ
のノックセンサ取付構造を示すもので、第1図はエンジ
ンのシリンダヘッドを取り外した状態で本ノックセンサ
取付構造を示す平面図、第2図はエンジンのシリンダヘ
ッドを取り付けた状態で本ノックセンサ取付構造を示す
立面図、第3図はノックセンサ取付用ブラケットの平面
図、第4図はノックセンサ取付用ブラケットの正面図で
あり、第5,6図はそれぞれ従来の■型エンジンへのノ
ックセンサ取付構造を示す立面図である。 1、LA、IB−−ノックセンサ、2A、2B−バンク
、3−ffi子制御ユニット、4−ブラケット(連結部
材)、4A〜4D−・−ボス部、4E−ノックセンサ取
付用ねじ穴部、4F〜4■−リブ、5・−・ボルト。 第1図
Figures 1 to 4 show a knock sensor mounting structure for a V-type engine as an embodiment of the present invention, and Figure 1 is a plan view showing the knock sensor mounting structure with the cylinder head of the engine removed. , Fig. 2 is an elevational view showing the knock sensor mounting structure with the engine cylinder head attached, Fig. 3 is a plan view of the knock sensor mounting bracket, and Fig. 4 is a front view of the knock sensor mounting bracket. FIGS. 5 and 6 are elevational views showing the structure for attaching a knock sensor to a conventional ■type engine. 1, LA, IB--knock sensor, 2A, 2B-bank, 3-ffi child control unit, 4-bracket (connection member), 4A to 4D--boss part, 4E-knock sensor mounting screw hole part, 4F~4■-rib, 5--bolt. Figure 1

Claims (1)

【特許請求の範囲】[Claims] V型エンジンの各バンク間に連結部材が装架され、該連
結部材にノックセンサが取り付けられていることを特徴
とする、V型エンジンへのノックセンサ取付構造。
A knock sensor mounting structure for a V-type engine, characterized in that a connecting member is installed between each bank of the V-type engine, and a knock sensor is attached to the connecting member.
JP26083989A 1989-10-05 1989-10-05 Knock sensor fitting structure to v-type engine Pending JPH03124928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26083989A JPH03124928A (en) 1989-10-05 1989-10-05 Knock sensor fitting structure to v-type engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26083989A JPH03124928A (en) 1989-10-05 1989-10-05 Knock sensor fitting structure to v-type engine

Publications (1)

Publication Number Publication Date
JPH03124928A true JPH03124928A (en) 1991-05-28

Family

ID=17353475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26083989A Pending JPH03124928A (en) 1989-10-05 1989-10-05 Knock sensor fitting structure to v-type engine

Country Status (1)

Country Link
JP (1) JPH03124928A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392642A (en) * 1993-06-30 1995-02-28 Cummins Engine Company, Inc. System for detection of low power in at least one cylinder of a multi-cylinder engine
JP2015075020A (en) * 2013-10-08 2015-04-20 学校法人明治大学 Cylinder outer sensor for monitoring combustion, and method of adjusting output of cylinder outer sensor for monitoring combustion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392642A (en) * 1993-06-30 1995-02-28 Cummins Engine Company, Inc. System for detection of low power in at least one cylinder of a multi-cylinder engine
JP2015075020A (en) * 2013-10-08 2015-04-20 学校法人明治大学 Cylinder outer sensor for monitoring combustion, and method of adjusting output of cylinder outer sensor for monitoring combustion

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