JPH05256236A - System for detecting engine speed variation and damping knocking oscillation for internal combustion engine - Google Patents
System for detecting engine speed variation and damping knocking oscillation for internal combustion engineInfo
- Publication number
- JPH05256236A JPH05256236A JP5008950A JP895093A JPH05256236A JP H05256236 A JPH05256236 A JP H05256236A JP 5008950 A JP5008950 A JP 5008950A JP 895093 A JP895093 A JP 895093A JP H05256236 A JPH05256236 A JP H05256236A
- Authority
- JP
- Japan
- Prior art keywords
- rotational speed
- seg
- knocking
- difference
- torque
- 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
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/1502—Digital data processing using one central computing unit
- F02P5/1504—Digital data processing using one central computing unit with particular means during a transient phase, e.g. acceleration, deceleration, gear change
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
- F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1015—Engines misfires
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、回転数変化を検出し、
発生したノッキング振動をノック防止手段により減衰す
るための内燃機関用装置であって、回転数上昇の際には
トルクが低減され、回転数低下の際にはトルクが増大さ
れる装置に関する。BACKGROUND OF THE INVENTION The present invention detects a change in rotation speed,
The present invention relates to an internal combustion engine device for damping generated knocking vibrations by a knock preventing means, wherein the torque is reduced when the rotational speed is increased and the torque is increased when the rotational speed is decreased.
【０００２】[0002]
【従来の技術】ノッキング振動を減衰するための装置を
備えた内燃機関用点火装置は既にＤＥ−ＯＳ３２４３２
３５から公知である。この装置では、回転数上昇の際に
点火の遅角調整によりトルク減少が行われ、回転数低下
の際に点火の進角調整によりトルク増大が行われる。そ
の際回転数変動は時間単位毎の回転数変化として検出さ
れ重み付けされ、極性符号のある付加的点火角として通
常の特性フィールド点火角に供給される。回転数変化は
ノック防止手段に対する重要な入力信号であるから、運
転者により所望される加速もノッキングとして評価さ
れ、そのためこれに続く点火角の遅角調整が場合によ
り、加速に不利に作用する。2. Description of the Related Art Ignition systems for internal combustion engines equipped with a device for damping knocking vibrations have already been disclosed in DE-OS 32432.
It is known from 35. In this device, the torque is reduced by adjusting the ignition retard when the rotational speed is increased, and the torque is increased by adjusting the ignition advance when the rotational speed is decreased. Rotational speed fluctuations are then detected and weighted as rotational speed changes per time unit and are supplied to the normal characteristic field ignition angle as an additional ignition angle with a polarity sign. Since the rotational speed change is an important input signal to the anti-knock means, the acceleration desired by the driver is also evaluated as knocking, so that the subsequent ignition timing retard adjustment can possibly adversely affect the acceleration.
【０００３】[0003]
【発明が解決しようとする課題】本発明の課題は上記の
欠点をなくした、内燃機関用の点火装置を提供すること
である。SUMMARY OF THE INVENTION The object of the present invention is to provide an ignition device for an internal combustion engine which eliminates the above-mentioned drawbacks.
【０００４】[0004]
【課題を解決するための手段】上記課題は本発明によ
り、順次連続する回転数測定値の変化の差を検出するこ
とによりノッキング振動を識別する装置が設けられてお
り、相応のトルク変化によりノッキング振動に反対作用
するように構成して解決される。SUMMARY OF THE INVENTION According to the present invention, there is provided a device for identifying knocking vibration by detecting a difference in changes in rotational speed measurement values that are consecutive in succession, and knocking is caused by a corresponding torque change. It is configured and resolved to counteract vibrations.
【０００５】請求項１の構成を有する本発明の装置は、
回転数変化の際にノッキングによるものなのかまたは運
転者による所望の加速によるものなのかを区別すること
によって、一方では公知のノック防止手段が回転トルク
を介し、例えば点火角または燃料調量によりノッキング
に反対作用することができ、他方では所望の加速の際に
回転トルクの減少による加速度損失を回避することがで
きる。A device of the present invention having the structure of claim 1 is
By distinguishing between knocking or a desired acceleration by the driver when the speed changes, the known anti-knocking means, on the other hand, via rotational torque, for example by ignition angle or fuel metering. On the other hand, acceleration losses due to the reduction of the rotational torque can be avoided during the desired acceleration.
【０００６】従属請求項に記載された手段により請求項
１に記載された点火装置の改善および発展形態が可能で
ある。特に有利には、回転数変動が閾値を上回った際に
ノック防止手段を行い、この閾値を下回る際かつ回転数
変化が閾値を下回る際にノック防止手段が作用しないよ
うにするのである。さらに、回転数変動が閾値を下回る
がしかし回転数変動の閾値を上回る際に、前もって設定
したノック防止手段の状態を維持することによって、正
確な評価を行うことができないような条件においても、
内燃機関動作を制御することが可能である。By means of the dependent claims, improvements and developments of the ignition device as claimed in claim 1 are possible. Particularly preferably, the knock prevention means is provided when the rotational speed fluctuation exceeds a threshold value, and the knock prevention means does not act when the rotational speed variation falls below this threshold value and when the rotational speed change falls below the threshold value. Furthermore, even when the rotation speed fluctuation is below the threshold value but exceeds the rotation speed fluctuation threshold value, by maintaining the state of the knock prevention means set in advance, even under the condition that an accurate evaluation cannot be performed,
It is possible to control the operation of the internal combustion engine.
【０００７】[0007]
【実施例】図１には、点火装置を有する内燃機関の模式
的構成が示されている。センサホイール１０を介して、
機関１１から出力される回転数ｎが回転数センサ１２に
より検出され、回転数評価および回転数変化の検出のた
めにマイクロプロセッサ１３に供給される。マイクロプ
ロセッサ１３はノッキングが発生した際に、αZARAだけ
の点火角調整を定める。この点火角αZARAは加算器１４
にて特性フィールド点角αZに重畳され、相応に点火が
トリガされる。特性フィールド点火角αZは公知のよう
に、回転数ｎ、温度Ｔおよび別のパラメータに依存して
マイクロプロセッサ１３から出力される。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic construction of an internal combustion engine having an ignition device. Via the sensor wheel 10,
The rotational speed n output from the engine 11 is detected by the rotational speed sensor 12 and supplied to the microprocessor 13 for rotational speed evaluation and detection of rotational speed change. When knocking occurs, the microprocessor 13 determines the ignition angle adjustment of α ZARA only. This ignition angle α ZARA is the adder 14
At the characteristic field point angle α Z , the ignition is triggered accordingly. The characteristic field ignition angle α Z is output from the microprocessor 13, as is known, depending on the speed n, the temperature T and other parameters.
【０００８】図２には、ノッキングと所望の加速とを区
別するための、本発明の回転数評価の個々の動作ステッ
プを説明するための装置がハードウェア的に示されてい
る。そのために回転数ｎが変換器１５にてセグメント時
間ｔsegに変換される。このセグメント時間とは、２つ
の順次連続する点火の間で経過する時間である。引き続
き微分素子１６で、セグメント時間変化（回転数の上
昇）に相応する一次導関数ｔseg’が形成される。次い
で微分素子１６の出力は一方で閾値スイッチ１７に供給
され、他方でセグメント時間ｔsegの二次導関数（回転
数の上昇変化）ｔs eg”を形成する別の微分素子１８の
入力側に供給される。点火角αZARAを検出するためにさ
らに、微分素子１６の出力端子は双安定フリップフロッ
プとして作用するスイッチ２０を介してアンチノック段
２２に接続されている。FIG. 2 shows, in hardware, a device for explaining the individual operating steps of the speed evaluation according to the invention, in order to distinguish between knocking and desired acceleration. Therefore, the rotational speed n is converted by the converter 15 into the segment time t seg . This segment time is the time that elapses between two successive ignitions. Subsequently, the differentiating element 16 forms the first derivative t seg 'corresponding to the change in the segment time (increased rotational speed). The output of the differentiating element 16 is then supplied on the one hand to a threshold switch 17 and, on the other hand, to the input of another differentiating element 18 which forms the second derivative (increase in rotational speed) t s eg ″ of the segment time t seg. Further, for detecting the ignition angle α ZARA , the output terminal of the differentiating element 16 is connected to an anti-knock stage 22 via a switch 20 acting as a bistable flip-flop.
【０００９】第２の微分素子１８の出力、すなわちセグ
メント時間の二次導関数は第２の閾値スイッチ１９に供
給される。第１の閾値スイッチ１７はセグメント時間の
一次導関数ｔseg’を閾値Ｓ２と比較する。この閾値Ｓ
２に達しこれを上回る際に、閾値スイッチ１７の出力は
第１のレベルから第２のレベルへ切り換わる。これと同
じように第２の閾値スイッチ１９でも、セグメント時間
の二次導関数ｔseg”が閾値Ｓ１と比較される。その際
も閾値スイッチ１９の出力は同様に、この閾値に達しこ
れを上回る際に第１のレベルから第２のレベルへ切り換
わる。閾値スイッチ１９の出力は接続路２３を介してス
イッチ２０の制御入力側に、また接続路２４を介して論
理ゲート２１、例えばＡＮＤゲート２１の入力側に供給
される。この装置は、セグメント時間の二次導関数が閾
値Ｓ１を上回る際（ｔseg”＞Ｓ１）の際に、スイッチ
２０が接続路２３を介してアンチノック段２２を作動さ
せるため閉成されるように作用する。セグメント時間の
二次導関数ｔseg”が閾値Ｓ１以下に低下すると、閾値
スイッチ１９は再び第１のレベルに切り換わる。閾値ス
イッチ１９の出力はＡＮＤゲート２１の一方の入力側に
供給されるから、閾値スイッチ１７の出力が第１のレベ
ルあるとき、すなわち回転数上昇ｔseg’が閾値Ｓ２よ
りも小さいかまたは同じとき、このＡＮＤゲートはその
出力を切り換える。この場合はスイッチ２０が開放し、
これによりノック防止機能ＡＲＡの段２２は非作用状態
へ切り換えられる。The output of the second differentiating element 18, ie the second derivative of the segment time, is fed to a second threshold switch 19. The first threshold switch 17 compares the first derivative of the segment time t seg 'with a threshold S2. This threshold S
When it reaches and exceeds 2, the output of the threshold switch 17 switches from a first level to a second level. In the same way, in the second threshold switch 19, the second derivative t seg ″ of the segment time is compared with the threshold value S1, the output of the threshold switch 19 likewise reaching and exceeding this threshold value. In this case, the output of the threshold switch 19 is switched to the control input side of the switch 20 via the connection 23 and to the logic gate 21, for example the AND gate 21, via the connection 24. This device allows the switch 20 to drive the anti-knock stage 22 via the connection 23 when the second derivative of the segment time exceeds the threshold S1 (t seg "> S1). Acts to be closed to actuate. When the second derivative of the segment time t seg ″ falls below the threshold S1, the threshold switch 19 switches back to the first level, since the output of the threshold switch 19 is fed to one input of the AND gate 21. , The AND gate switches its output when the output of the threshold switch 17 is at the first level, that is, when the rotational speed increase t seg 'is less than or equal to the threshold S2, in which case the switch 20 opens,
This switches the stage 22 of the anti-knock function ARA to the inactive state.
【００１０】図３にはマイクロプロセッサ１３における
回転数ｎの処理動作ステップがフローチャートの形で示
されている。ここで回転数ｎは動作ステップ２５でセグ
メント時間ｔsegに変換される。引き続き、動作ステッ
プ２６でセグメント時間の一次導関数ｔseg’が形成さ
れ、これに続く動作ステップ２７で二次導関数ｔseg”
が形成される。FIG. 3 shows, in the form of a flow chart, the processing operation steps for the rotational speed n in the microprocessor 13. Here, the rotational speed n is converted in operation step 25 into a segment time t seg . Subsequently, in operation step 26 the first derivative t seg of the segment time is formed and in the following operation step 27 the second derivative t seg ″.
Is formed.
【００１１】動作ステップ２７から出発して問合せ２８
で、セグメント時間の二次導関数が閾値Ｓ１よりも大き
いか否かが検査される。この問合せ２８の肯定出力は動
作ステップ２９に供給され、この動作ステップ２９はノ
ック防止手段ＡＲＡを、例えば図２のスイッチ２０の閉
成により作動接続する。引き続く動作ステップ３０で
は、特性フィールド点火角αZに点火角αZARAが、ノッ
キング振動の減衰に作用するため加算される。この合計
点火角は次に点火出力段３１に供給される。問合せ２８
の否定出力は問合せ３２に供給される。この問合せ３２
では、セグメント時間の一次導関数が閾値Ｓ２よりも大
きいか否か（ｔseg’＞Ｓ１）検査される。この問合せ
３２の肯定出力は問合せ３３に供給される。ここでっ
は、先行する点火においてノック防止機能ＡＲＡが既に
作動しているか否か検査される。既に作動していればこ
れは、ノッキングが発生しているが、ステップ２８でノ
ッキングが識別されない場合である。なぜなら、振動す
る正弦波状の回転数曲線が折曲点にあるときに評価がち
ょうど行われたからである。従いノック防止機能は瞬時
の点火に対して作動したままとなる。ノック防止機能Ａ
ＲＡが作動していなければ（否定出力）この機能は例え
ばスイッチ２０（図２）を介して動作ステップ３４で非
作動状態に切り換えられる。動作ステップ３５では、特
性フィールド点火角が点火出力段３１に出力される。問
合せ３２の否定出力、すなわちｔseg’がＳ２より小さ
いかまたは同じであることは同様に動作ステップ３４お
よび３５を介して、特性フィールド点火角αZの出力の
ため点火出力段３１に供給される。Inquiry 28 starting from operation step 27
Then it is checked whether the second derivative of the segment time is greater than the threshold S1. The positive output of this inquiry 28 is fed to an operating step 29, which activates the knock prevention means ARA, for example by closing the switch 20 of FIG. In the subsequent operating step 30, the ignition angle α ZARA is added to the characteristic field ignition angle α Z in order to influence the damping of the knocking vibration. This total ignition angle is then supplied to the ignition output stage 31. Inquiry 28
The negative output of is supplied to query 32. This inquiry 32
Then, it is checked whether the first derivative of the segment time is larger than the threshold value S2 (t seg '> S1). The positive output of this inquiry 32 is supplied to inquiry 33. Here, it is checked in the preceding ignition whether the knock prevention function ARA has already been activated. If it is already working, this is the case where knocking has occurred but no knocking is identified in step 28. This is because the evaluation was just performed when the oscillating sinusoidal speed curve was at the inflection point. Therefore, the anti-knock function remains activated for the instant ignition. Knock prevention function A
If RA is inactive (negative output), this function is switched to the inactive state in operational step 34, for example via switch 20 (FIG. 2). In operational step 35, the characteristic field ignition angle is output to the ignition output stage 31. The negative output of inquiry 32, ie t seg 'is less than or equal to S2, is likewise supplied via operation steps 34 and 35 to the ignition output stage 31 for the output of the characteristic field ignition angle α Z. ..
【００１２】図４は、加速の際にノッキングを回避する
ために所属の点火角調整による回転数経過を模式的に示
す。線図の上部には加速の典型的な回転数経過ｎが示さ
れており、領域Ｉでは回転数の勾配変化が常時発生し、
一方領域ＩＩでは一定に上昇する回転数増加が認められ
ることが明らかである。FIG. 4 schematically shows the progression of the number of revolutions due to the associated ignition angle adjustment in order to avoid knocking during acceleration. In the upper part of the diagram, a typical rotational speed progression n of acceleration is shown, and in the region I, a change in the rotational speed gradient always occurs,
On the other hand, it is clear that in region II, a constant increase in the number of revolutions is observed.
【００１３】線図の下部にはノッキングを回避するため
の点火角αZARAが示されている。回転数上昇の際には点
火角は遅角調整され、反対に回転数低下の際には点火角
は進角調整されることがわかる。The ignition angle α ZARA for avoiding knocking is shown in the lower part of the diagram. It can be seen that the ignition angle is retarded when the rotational speed is increased, while the ignition angle is advanced when the rotational speed is decreased.
【００１４】正しく調整された際にはこのように振動が
減衰される。領域ＩＩで回転数変化が一定になると直ち
に、公知の従来の手段では比較的に遅い点火角が生じる
こととなり、そのためトルクが減少し、場合により加速
力の損失が発生する。本発明ではこれに対して、点火角
の不利な遅角調整が次の場合に回避される。すなわち回
転数変化が所定の閾値Ｓ２よりも小さいかまたは同じと
きに回避される。回転数変化が所定の閾値Ｓ２よりも大
きければ、先行する点火サイクルで求められたノック防
止手段の状態が維持される。この状況（ｔseg”≦Ｓ１
かつｔseg’＞Ｓ２）は例えば、領域Ｉに示した振動の
折曲点で生じる。Vibration is thus damped when properly adjusted. As soon as the rotational speed change becomes constant in region II, the known prior art means a relatively slow ignition angle, which results in reduced torque and possibly loss of acceleration force. In the present invention, on the other hand, an unfavorable retard adjustment of the ignition angle is avoided in the following cases. That is, it is avoided when the rotation speed change is smaller than or equal to the predetermined threshold value S2. If the change in the number of revolutions is larger than the predetermined threshold value S2, the state of the knock prevention means obtained in the preceding ignition cycle is maintained. This situation (t seg " ≤S1
And t seg '> S2) occurs at the bending point of the vibration shown in the region I, for example.
【００１５】閾値Ｓ２は、回転数変化の際に、振動の際
の領域Ｉにおいてそれぞれ折曲点間で発生するような上
昇が発生すると、図３の問合わせ３２が肯定的に応答す
るように設定する。図４から、領域Ｉの回転数変化（ｔ
seg’）は領域ＩＩにおけるよりも大きいことがわか
る。従い閾値Ｓ２は、可能な線形加速度の上側に設定す
る。The threshold value S2 is set so that the inquiry 32 of FIG. 3 responds affirmatively when the rise occurs such that it occurs between the respective bending points in the region I during vibration when the rotational speed changes. Set. From FIG. 4, the rotational speed change (t
It can be seen that seg ') is larger than in Region II. Therefore, the threshold value S2 is set above the possible linear acceleration.
【００１６】[0016]
【発明の効果】本発明により、ノッキングによる回転数
変化と運転者が所望する回転数変化とが区別され、後者
の場合はノック防止手段が作動されないような点火装置
が得られる。According to the present invention, it is possible to obtain an ignition device in which the change in the number of revolutions due to knocking is distinguished from the change in the number of revolutions desired by the driver, and in the latter case, the knock preventing means is not activated.
【図１】本発明の模式図である。FIG. 1 is a schematic diagram of the present invention.
【図２】本発明の装置のブロック回路図である。FIG. 2 is a block circuit diagram of the device of the present invention.
【図３】本発明を説明するためのフローチャートであ
る。FIG. 3 is a flowchart for explaining the present invention.
【図４】本発明を説明するための線図である。FIG. 4 is a diagram for explaining the present invention.
１０ センサホイール １１ 機関 １２ 回転数センサ １３ マイクロプロセッサ １４ 加算器 １５ 変換器 10 Sensor Wheel 11 Engine 12 Rotation Speed Sensor 13 Microprocessor 14 Adder 15 Converter
Claims (8)
グ振動をノック防止手段により減衰するための内燃機関
用装置であって、回転数上昇の際にはトルクが低減さ
れ、回転数低下の際にはトルクが増大される装置におい
て、 順次連続する回転数測定値の変化の差（ｔseg”）を検
出することによりノッキング振動を識別する装置（１
３）が設けられており、相応のトルク変化によりノッキ
ング振動に反対作用することを特徴とする、回転数変化
を検出し、発生したノッキング振動を減衰するための内
燃機関用装置。1. A device for an internal combustion engine for detecting a change in the number of revolutions and attenuating the knocking vibration generated by a knock preventing means, wherein the torque is reduced when the number of revolutions increases and the torque decreases when the number of revolutions decreases. In a device in which torque is increased, a device (1) for identifying knocking vibration by detecting a difference (t seg ") in a change in rotational speed measurement values that are successively performed.
3) is provided, and an apparatus for an internal combustion engine for detecting a rotational speed change and damping the generated knocking vibration is characterized in that it counteracts the knocking vibration by a corresponding torque change.
から、順次連続する回転数測定値の差（ｔseg’）と、
順次連続する回転数測定値変化の差（ｔseg”）を形成
する請求項１記載の装置。2. The device (13) comprises a difference (t seg ') between consecutively measured rotational speeds from the periodical rotational speed detection,
2. The device according to claim 1, wherein the difference (t seg ") between successive rotational speed measurement changes is formed.
差（ｔseg”）が所定の閾値（Ｓ１）よりも大きいと
き、ノック防止手段（ＡＲＡ）を作動する請求項１また
は２記載の装置。3. The device according to claim 1, wherein the device (13) activates the knock prevention means (ARA) when the difference (t seg ") in the change of the rotational speed measurement value is larger than a predetermined threshold value (S1). Equipment.
差（ｔseg”）が所定の閾値（Ｓ１）よりも小さいかま
たは同じとき、回転数測定値の差（ｔseg’）を別の所
定の閾値（Ｓ２）と比較する請求項３記載の装置。4. The device (13) determines the difference (t seg ') in the measured rotational speed when the difference (t seg ") in the measured rotational speed change is less than or equal to a predetermined threshold value (S1). 4. Device according to claim 3, for comparison with another predetermined threshold value (S2).
差（ｔseg”）が別の所定の閾値（Ｓ２）よりも小さい
かまたは同じとき、ノック防止手段を非作動状態に切り
換え、前記差が別の所定の閾値（Ｓ２）よりも大きいと
き、先行する点火サイクルのノック防止手段（ＡＲＡ）
の状態（作動または非作動）を維持する請求項４記載の
装置。5. The device (13) switches the anti-knock means to the inactive state when the difference (t seg ″) in the change of the rotational speed measurement value is smaller than or equal to another predetermined threshold value (S2), When the difference is greater than another predetermined threshold (S2), the knock prevention means (ARA) of the preceding ignition cycle
The device according to claim 4, which maintains the state (actuated or deactuated).
機関形式毎に調整可能である請求項５記載の装置。6. Apparatus according to claim 5, wherein the thresholds (S1 and S2) are adjustable for each engine type applied.
め、相応の時間値、有利にはセグメント時間（ｔseg）
に変換する請求項１から６までのいずれか１記載の装
置。7. The device (13) uses a corresponding time value, preferably a segment time (t seg ), for evaluating the rotational speed n.
7. The device according to claim 1, which is converted into
トルク増大は点火角の進角調整により行われる請求項１
から７までのいずれか１記載の装置。8. The torque reduction is achieved by adjusting the ignition retard.
The torque increase is performed by adjusting the advance angle of the ignition angle.
The device according to any one of 1 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4201861.7 | 1992-01-24 | ||
| DE4201861A DE4201861C1 (en) | 1992-01-24 | 1992-01-24 | Detecting and suppression circuitry for speed changes and jerking vibrations of IC engine - uses microprocessor to register difference in changes of sequential RPM measurement values to distinguish between jerk and desired constant acceleration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05256236A true JPH05256236A (en) | 1993-10-05 |
Family
ID=6450150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5008950A Pending JPH05256236A (en) | 1992-01-24 | 1993-01-22 | System for detecting engine speed variation and damping knocking oscillation for internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH05256236A (en) |
| DE (1) | DE4201861C1 (en) |
| SE (1) | SE511779C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007232007A (en) * | 2006-02-28 | 2007-09-13 | Toyota Motor Corp | Control device for internal combustion engine |
| US7637248B2 (en) * | 2007-01-25 | 2009-12-29 | Andreas Stihl Ag & Co. Kg | Method for operating an internal combustion engine by determining and counteracting a pre-ignition state |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4232204C2 (en) * | 1992-09-25 | 1995-11-02 | Siemens Ag | Method for suppressing vibrations in the drive train of a motor vehicle |
| DE59305651D1 (en) * | 1993-10-27 | 1997-04-10 | Siemens Ag | Method for suppressing vibrations of the drive train of a motor vehicle by ignition timing control |
| DE19955600C2 (en) * | 1999-11-18 | 2002-01-31 | Siemens Ag | Method for damping bucking in an internal combustion engine |
| DE19958251C2 (en) * | 1999-12-03 | 2002-11-21 | Siemens Ag | Method for damping mechanical vibrations in the drive train of an internal combustion engine |
| DE10049908A1 (en) * | 2000-10-10 | 2002-04-11 | Bosch Gmbh Robert | Optimization of combustion engined motor vehicle operation by measurement of operating parameters and determination of corresponding values that are then used to adjust vehicle operation taking into account wear, etc. |
| JP4062666B2 (en) * | 2002-03-25 | 2008-03-19 | 本田技研工業株式会社 | Torque fluctuation control device and torque fluctuation control program |
| DE10232806B4 (en) * | 2002-07-19 | 2008-10-30 | Bayerische Motoren Werke Aktiengesellschaft | Method for controlling or regulating an operating variable of an internal combustion engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3243235A1 (en) * | 1982-11-23 | 1984-05-24 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR DAMPING VIBRATION VIBRATIONS IN AN INTERNAL COMBUSTION ENGINE IN A MOTOR VEHICLE |
-
1992
- 1992-01-24 DE DE4201861A patent/DE4201861C1/en not_active Expired - Lifetime
-
1993
- 1993-01-22 SE SE9300194A patent/SE511779C2/en not_active IP Right Cessation
- 1993-01-22 JP JP5008950A patent/JPH05256236A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007232007A (en) * | 2006-02-28 | 2007-09-13 | Toyota Motor Corp | Control device for internal combustion engine |
| JP4736851B2 (en) * | 2006-02-28 | 2011-07-27 | トヨタ自動車株式会社 | Control device for internal combustion engine |
| US7637248B2 (en) * | 2007-01-25 | 2009-12-29 | Andreas Stihl Ag & Co. Kg | Method for operating an internal combustion engine by determining and counteracting a pre-ignition state |
Also Published As
| Publication number | Publication date |
|---|---|
| SE511779C2 (en) | 1999-11-22 |
| DE4201861C1 (en) | 1993-02-04 |
| SE9300194D0 (en) | 1993-01-22 |
| SE9300194L (en) | 1993-07-25 |
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