EP0707684B1 - Procede et dispositif de commande du regime ralenti d'un moteur a combustion interne - Google Patents
Procede et dispositif de commande du regime ralenti d'un moteur a combustion interne Download PDFInfo
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- EP0707684B1 EP0707684B1 EP94924220A EP94924220A EP0707684B1 EP 0707684 B1 EP0707684 B1 EP 0707684B1 EP 94924220 A EP94924220 A EP 94924220A EP 94924220 A EP94924220 A EP 94924220A EP 0707684 B1 EP0707684 B1 EP 0707684B1
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- engine
- speed
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- correction
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- 238000002485 combustion reaction Methods 0.000 title claims description 8
- 238000012937 correction Methods 0.000 claims description 55
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Images
Classifications
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- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/002—Electric control of rotation speed controlling air supply
- F02D31/003—Electric control of rotation speed controlling air supply for idle speed control
- F02D31/005—Electric control of rotation speed controlling air supply for idle speed control by controlling a throttle by-pass
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- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D41/1406—Introducing closed-loop corrections characterised by the control or regulation method with use of a optimisation method, e.g. iteration
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1418—Several control loops, either as alternatives or simultaneous
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D41/1403—Sliding mode control
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D41/1404—Fuzzy logic control
Definitions
- the present invention relates to a method and a combustion engine speed control device internal in idle phase and, more particularly, at a such process and to such a device operating by correction of the control of an actuator influencing this regime in function of the difference between a target speed and the speed current.
- the control of the scheme is indeed delicate because we know that the stability of a engine at low speed is difficult to ensure and that the engine behavior is difficult to model.
- the conditions for entering the idle phase may vary considerably, for example with regard to the action of the driver on the accelerator pedal, the temperature of engine cooling water, air temperature, the possible presence of random disturbances due to the activation of a consumer of electrical energy (lighting device, fan) or mechanical (air conditioner, power steering). Diet control must also take into account other constraints related to driver comfort (noise level, vibrations, jolts) and standards for environmental pollution by engine exhaust.
- the object of the present invention is to provide a method for controlling the speed of an internal combustion engine in the idle phase which is satisfactory from the quadruple point of sight: robustness, resistance to disturbances, ease of adjustment and driving pleasure of a vehicle powered by such an engine, in all idle speed phases.
- the present invention also aims to achieve a device for implementing this method.
- a value ⁇ u is obtained from the correction of the actuator control of a table with two inputs constituted respectively by the error E and the derivative E ' of the error.
- the table contains specific values of the correction ⁇ u of the actuator control, associated each to a couple of particular values of the error E and the derivative of the error E '.
- the correction ⁇ u is drawn from the command for the actuator of a linear combination of corrections partial taken from said table and from a second table, respectively, said second table matching to particular values of the derivative E 'of the error, particular values of the partial correction that it determined.
- the present invention also provides a device for implementing this method, comprising a) means for delivering a first signal representative of the error E under operating conditions and a second signal representative of the derivative E 'of this error, from of a signal delivered by a sensor of the current speed N of the engine and of a signal representative of a predetermined value of the reference speed N C of idling and b) a controller powered by said first and second signals to derive a value ⁇ u correcting the actuator control of said first and second signals and means for storing particular values of this correction ⁇ u as a function of the difference between the current state (E, E ') of the motor as it is known by these signals and the location of the ideal states of this engine.
- FIG. 1 where a cylinder 1 of an internal combustion engine propelling a motor vehicle, in a classic environment of sensors, actuators and electronic means of control of these actuators.
- a calculator electronic 2 is powered by a reluctance sensor 3 variable for example, coupled to a toothed wheel 4 mounted on the output shaft 5 of the engine to deliver to the computer a signal representative of the speed of rotation (or engine speed), a pressure sensor 6 being mounted in the engine intake manifold 7 to supply the calculator a signal representative of the air pressure admitted into the engine.
- Other signals 8.9 etc ... from water temperature sensors from engine cooling, air temperature etc. or an oxygen sensor 10 placed in the exhaust gases of the engine, can be delivered classically to calculator.
- actuators such as a fuel injector 11, a ignition circuit of a spark plug 12 or a valve 13 of additional air control placed on a shorting duct 14 a main control butterfly 15 of the amount of air entering the engine through the manifold admission 7.
- FIG. 2a also shows the time diagram P of the actuation of the accelerator pedal, the driver having, for example, depressed this pedal at time t 1 and released this pedal at time t 2 ("foot raised" position).
- the acceleration from time t 1 is manifested by a growth in the engine speed N followed, after time t 2 , by a decrease in this speed due to the "lift".
- N S 1700 rpm
- a plurality of engine states are established, for example by bench measurements, for which the value of the error E and that of its derivative are in a relationship such that, during an idling regulation phase and therefore the throttle valve 15 is closed by the driver's "lift", the engine speed is likely to reach the setpoint N C by a monotonous variation, fast and smoothly so as to provide the best driving comfort for the vehicle, without any modification to the nominal setting of the opening of the additional air valve 13.
- the calculator determines a correction of the control of the additional air valve 13 the greater the greater the difference, so that return this state to or on the surface as quickly and smoothly as possible ideal place.
- the computer applies to the valve a command to increase its opening, and therefore the quantity of air admitted, which in turn controls back, always through the computer, a correlative increase in the quantity of fuel injected, resulting in increased torque delivered by the engine and therefore a slower decay of its speed, aimed at bringing the state of the engine closer to the place ideal.
- the amplitude of the correction is all the greater that the distance d between the current state (E, E ') of the engine, of the place (see Figure 2b) is large.
- the correction applied is positive above this right, negative below and that the value of the correction is proportional to the distance between a special box to the right of the boxes (ZE).
- the present invention provides a device, a preferred embodiment of which has been shown diagrammatically in FIG. 3.
- the controller 19 emits, from the current or current values of E and E ′ and from the table in FIG. 4, a correction ⁇ u 1 of the nominal control 22 of the additional air valve 13, possibly amplified in an amplifier 20 gain G 1 and added with a component developed by an integrator 21.
- This integral component is provided for conventionally correcting the nominal control 22 of the additional air control valve 13 when this nominal control is no longer suitable due to applying a permanent or slowly varying load to the engine, as is the case for example when activating a steering assistance device.
- the final command U thus obtained then passes into a saturator 23 which limits the dynamics of the command, this one being finally applied to the valve 13 of the engine.
- a device as described above is sufficient to implement the control method according to the invention, when this is limited to the execution of orders shown in the table in Figure 4.
- E NTG
- Supervision means 24 are provided for controlling the gains G 1 and G 2 of the amplifiers 20, 20 ′ respectively, depending for example, on the engine speed on entering the idle regulation phase, and, optionally, on the load then supported by the motor, to adjust the "slope" of the line support for the boxes (ZE) as a function of such or such predetermined control strategy, as will be illustrated below by examples.
- the "trajectory" of the engine in this table is shown in A on the table in FIG. 9, under these initial conditions for entering the idle phase.
- the derivative E 'then remains at a important value (trajectory C) while the error E decreases however, which leads to an increase in the opening of this valve (the trajectory moves away from the right of boxes ZE) until the derivative E 'has sufficiently reduced to allow correction of the command to return to this line, zero correction.
- the controllers 19 and 19 'then cooperate to allow the engine to join the set speed in good conditions in terms of speed and driving comfort.
- FIGS. 10 to 12 describe the operation of the control method according to the invention in another common situation, namely that in which the entry into the idle control phase is done at "lift".
- the instant t 1 when the speed has already fallen below the idle threshold N S , as shown in the graph N (t) of FIG. 10.
- the supervisor 24 informed of these initial conditions, then reduces the gain ratio G 1 / G 2 to rotate the right image of the location of the ideal states of the engine from B to B '(see Figure 12).
- the trajectory A of FIG. 11 takes the form A ′ represented in FIG. 12. It is observed that this trajectory then joins the right image of the place of the ideal states without passing from the regime below the setpoint regime and therefore without risk of stalling the engine.
- the supervisor can use as input information, the engine speed at "lift foot "and, possibly, the” load “of the motor which depends, for example, the commissioning of a compressor air conditioning, or the information that the motor powered motor vehicle is in motion or no.
- the supervisor adjusts the ratio of gains G 1 and G 2 in such a way that the further the speed at "foot lift" is removed from the set idle speed , the steeper the inclination of the line of zero corrections ZE (see Figure 6).
- the supervisor adjusts the ratio of gains G 1 and G 2 so that this line is close to the horizontal (see Figure 7).
- the control method according to the invention reduces the influence of the error E in operation to avoid jolts and vibrations detrimental to the comfort and pleasure of driving the vehicle.
- the supervisor then takes this situation into account by reducing the influence of the first controller 19 sensitive to this error, that is to say by reducing the ratio G 1 / G 2 of the gains of the two controllers.
- the supervisor 24 can be designed to adjust the earnings ratio, not only based of the engine speed and load when entering the idle control, but also according to other initial conditions such as the water temperature of engine cooling, air temperature etc ...
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
- la figure 1 est un schéma d'un moteur équipé des moyens électroniques de commande nécessaires à la mise en oeuvre de la présente invention,
- les figures 2a et 2b sont des graphes utiles à la description du procédé suivant la présente invention,
- la figure 3 est un schéma d'un mode de réalisation préféré d'un dispositif pour la mise en oeuvre de ce procédé,
- les figures 4 à 7 sont des tables de correction utilisables dans le procédé suivant l'invention,
- la figure 8 représente des graphes illustrant l'évolution temporelle du régime, de l'erreur en régime et de la dérivée de cette erreur dans un exemple d'entrée en phase de ralenti après une forte accélération,
- la figure 9 est une table de correction utilisée dans le procédé suivant l'invention pour assurer la régulation du régime de ralenti, dans la situation illustrée aux graphes de la figure 8,
- la figure 10 représente des graphes illustrant l'évolution temporelle du régime, de l'erreur en régime et de la dérivée de cette erreur dans un exemple d'entrée en phase de ralenti à faible accélération, et
- les figures 11 et 12 représentent des tables de correction utilisées dans le procédé suivant l'invention pour assurer la régulation du régime de ralenti dans la situation illustrée par les graphes de la figure 10.
- d'une part le conducteur a levé le pied reposant sur l'accélérateur, situation dont le calculateur 2 est classiquement informé par un capteur (non représenté) sensible à l'arrivée en position haute de la pédale d'accélérateur (non représentée),
- le régime N du moteur est tombé en dessous d'un certain seuil NS appelé "seuil de ralenti",
- le véhicule est roulant, cette condition n'étant qu'éventuelle, comme d'autres conditions envisageables, d'ailleurs.
- PTG :
- positif très grand
- PG :
- positif grand
- PM :
- positif moyen
- PP :
- positif petit
- ZE :
- zéro
- NP :
- négatif petit
- NM :
- négatif moyen
- NG :
- négatif grand
- NTG :
- négatif très grand
Claims (13)
- Procédé de commande du régime (N) d'un moteur à combustion interne en phase de ralenti, par correction de la commande d'un actionneur influant sur ce régime en fonction de l'erreur E = NC - N entre un régime (NC) de consigne et le régime actuel (N), caractérisé en ce qu'on établit le lieu des états idéaux du moteur, défini par les couples de valeurs particulières de l'erreur (E) et de sa dérivée temporelle (E') correspondant à des états du moteur propres à rejoindre le régime de consigne (NC) sans correction de la commande de l'actionneur, par une variation monotone, rapide et sans à-coups du régime (N), et on corrige la commande de l'actionneur en fonction de l'écart entre l'état actuel (E,E') du moteur et le lieu des états idéaux de ce moteur.
- Procédé conforme à la revendication 1, caractérisé en ce qu'on tire une valeur (Δu) de la correction de la commande de l'actionneur, d'une table à deux entrées constituées respectivement par l'erreur (E) en régime et la dérivée temporelle (E') de cette erreur.
- Procédé conforme à la revendication 2, caractérisé en ce que la table contient des valeurs particulières (NTG à PTG) de la correction (Δu) de la commande de l'actionneur, associées chacune à un couple de valeurs particulières (NTG à PM) et (NM à PTG) de l'erreur (E) et de la dérivée de l'erreur (E'), respectivement.
- Procédé conforme à la revendication 3, caractérisé en ce que le lieu des états idéaux du moteur correspond dans ladite table à un jeu de cases (ZE) alignées sur une même droite.
- Procédé conforme à la revendication 4, caractérisé en ce que ladite droite se déduit d'une diagonale du tableau par rotation autour de la case correspondant à des valeurs nulles (ZE) de l'erreur (E) et de la dérivée (E') de cette erreur.
- procédé conforme à l'une quelconque des revendications 3 à 5, caractérisé en ce qu'on tire la correction (Δu) de la commande de l'actionneur d'une combinaison linéaire (G1.Δu1 + G2.Δu2) corrections partielles (Δu1,Δu2) tirées de ladite table et d'une deuxième table, respectivement, ladite deuxième table faisant correspondre à des valeurs particulières (NM à PTG) de la dérivée (E') de l'erreur des valeurs particulières (NM à PTG) de la correction partielle (Δu1) qu'elle détermine.
- Procédé conforme à la revendication 6, caractérisé en ce que les coefficients (G1,G2) de ladite combinaison linéaire sont fonction du régime (N) du moteur à l'entrée en phase de ralenti et, éventuellement, de la charge supportée par le moteur.
- Dispositif pour la mise en oeuvre du procédé conforme à l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il comprend (a) des moyens (16,17,18) pour délivrer un premier signal représentatif de l'erreur (E) en régime et un deuxième signal représentatif de la dérivée temporelle (E') de cette erreur, à partir d'un signal délivré par un capteur (3) du régime actuel (N) du moteur et d'un signal représentatif d'une valeur prédéterminée du régime de consigne (NC) de ralenti et, (b) un contrôleur (19) alimenté par lesdits premier et deuxième signaux pour tirer une valeur (Δu) de correction de la commande de l'actionneur (11;12;13) desdits premier et deuxième signaux et de moyens de mémorisation de valeurs particulières de cette correction (Δu) en fonction de l'écart entre l'état actuel (E,E') du moteur tel qu'il est connu par ces signaux et le lieu des états idéaux de ce moteur.
- Dispositif conforme à la revendication 8, prise dans sa combinaison avec la revendication 6, caractérisé en ce qu'il comprend un deuxième contrôleur (19') alimenté par le deuxième signal représentatif de la dérivée (E') de l'erreur en régime du moteur, les premier (19) et deuxième (19') contrôleurs délivrant des premier (Δu1) et deuxième (Δu2) signaux de correction partielle de la commande de l'actionneur, fonctions de leurs signaux d'entrée respectifs, et des moyens (20,20',24) alimentés par ces signaux de correction partielle pour former un signal de correction (Δu) de la commande de l'actionneur, formé par combinaison linéaire des signaux (Δu1, Δu2) de correction partielle.
- Dispositif conforme à la revendication 9, caractérisé en ce que lesdits moyens (20,20',24) de formation du signal (Δu) de correction de la commande de l'actionneur sont constitués par des amplificateurs (20),(20') de gain (G1),(G2) respectivement, alimentés par les signaux de sortie des premier (19) et deuxième (19') contrôleurs, respectivement, et par des moyens (25) pour additionner les signaux de sortie de ces amplificateurs (19,19').
- Dispositif conforme à la revendication 10, caractérisé en ce qu'il comprend des moyens de supervision (24) commandant les valeurs des gains (G1,G2) desdits amplificateurs de manière à faire tourner la droite image, dans la première table, du lieu des états idéaux du moteur, en fonction d'une stratégie de commande prédéterminée.
- Dispositif conforme à la revendication 11, caractérisé en ce que lesdits moyens de supervision (24) sont sensibles au régime (N) du moteur à l'entrée en phase de ralenti et, éventuellement, à la charge supportée par le moteur.
- Dispositif conforme à l'une quelconque des revendications 8 à 12, caractérisé en ce que le paramètre commandé de l'actionneur est choisi dans le groupe constitué par : l'ouverture d'une vanne (13) de commande d'air additionnel, le temps d'ouverture d'un injecteur (11) de carburant, la commande d'un papillon motorisé de contrôle des gaz.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9308275 | 1993-07-06 | ||
FR9308275A FR2707347B1 (fr) | 1993-07-06 | 1993-07-06 | Procédé et dispositif de commande du régime d'un moteur à combustion interne en phase de ralenti. |
PCT/EP1994/002155 WO1995002121A1 (fr) | 1993-07-06 | 1994-07-01 | Procede et dispositif de commande du regime ralenti d'un moteur a combustion interne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0707684A1 EP0707684A1 (fr) | 1996-04-24 |
EP0707684B1 true EP0707684B1 (fr) | 1998-06-10 |
Family
ID=9448968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94924220A Expired - Lifetime EP0707684B1 (fr) | 1993-07-06 | 1994-07-01 | Procede et dispositif de commande du regime ralenti d'un moteur a combustion interne |
Country Status (8)
Country | Link |
---|---|
US (1) | US5642707A (fr) |
EP (1) | EP0707684B1 (fr) |
JP (1) | JP3737106B2 (fr) |
KR (1) | KR100326501B1 (fr) |
DE (1) | DE69411011T2 (fr) |
ES (1) | ES2118426T3 (fr) |
FR (1) | FR2707347B1 (fr) |
WO (1) | WO1995002121A1 (fr) |
Families Citing this family (10)
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FR2724433B1 (fr) * | 1994-09-14 | 1997-01-17 | Peugeot | Procede et dispositif de suppression des oscillations longitudinales d'un vehicule automobile |
JP3265496B2 (ja) * | 1996-03-28 | 2002-03-11 | 株式会社ユニシアジェックス | 内燃機関の吸入空気流量調整装置 |
US6098008A (en) * | 1997-11-25 | 2000-08-01 | Caterpillar Inc. | Method and apparatus for determining fuel control commands for a cruise control governor system |
JP2002295291A (ja) * | 2001-03-29 | 2002-10-09 | Denso Corp | 内燃機関のアイドル回転速度制御方法 |
FR2840027B1 (fr) * | 2002-05-24 | 2004-10-15 | Renault Sa | Dispositif de commande d'un moteur suralimente comprenant l'utilisation d'un element de logique loue |
JP4200988B2 (ja) * | 2005-07-15 | 2008-12-24 | トヨタ自動車株式会社 | ハイブリッド車およびその制御方法 |
CN101802380B (zh) * | 2007-09-21 | 2012-10-10 | 胡斯华纳有限公司 | 用于手持式动力工具的怠速控制方法 |
JP5613321B2 (ja) * | 2011-03-28 | 2014-10-22 | 本田技研工業株式会社 | 内燃機関の制御装置 |
KR101269512B1 (ko) | 2012-01-17 | 2013-05-30 | 서울기연(주) | 2행정 엔진 회전수 제어장치 및 방법 |
MY177823A (en) * | 2016-06-08 | 2020-09-23 | Nissan Motor | Method for controlling hybrid vehicle and device for controlling hybrid vehicle |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429672A1 (de) * | 1984-08-11 | 1986-02-20 | Robert Bosch Gmbh, 7000 Stuttgart | Drehzahlregelsystem fuer brennkraftmaschinen |
EP0176323B1 (fr) * | 1984-09-19 | 1988-12-07 | Nippondenso Co., Ltd. | Commande d'injection de carburant pour moteurs Diesel à minimisation de durée |
JPS61145340A (ja) * | 1984-12-20 | 1986-07-03 | Honda Motor Co Ltd | 内燃エンジンのアイドル回転数フイ−ドバツク制御方法 |
JPH02222002A (ja) * | 1989-02-23 | 1990-09-04 | Fanuc Ltd | スライディングモードによる比例・積分制御方式 |
KR900019335A (ko) * | 1989-05-09 | 1990-12-24 | 시끼 모리야 | 회전수 제어장치 |
JPH02294537A (ja) * | 1989-05-10 | 1990-12-05 | Mitsubishi Electric Corp | エンジンのアイドル調整方法 |
US5313395A (en) * | 1989-12-25 | 1994-05-17 | Nippondenso Co. Ltd. | Speed control system for an internal combustion engine |
JPH0442302A (ja) * | 1990-06-07 | 1992-02-12 | Fanuc Ltd | コンプライアンス制御方式 |
JP2913980B2 (ja) * | 1992-02-12 | 1999-06-28 | 三菱自動車工業株式会社 | 吸排気弁停止機構付きエンジンのアイドル制御装置 |
US5228421A (en) * | 1992-10-28 | 1993-07-20 | Ford Motor Company | Idle speed control system |
DE4327912C1 (de) * | 1993-08-19 | 1994-09-22 | Unisia Jecs Corp | Motorleerlaufdrehzahlsteuergerät |
US5421302A (en) * | 1994-02-28 | 1995-06-06 | General Motors Corporation | Engine speed control state prediction |
JPH0814110A (ja) * | 1994-06-29 | 1996-01-16 | Nippondenso Co Ltd | 内燃機関の制御装置 |
-
1993
- 1993-07-06 FR FR9308275A patent/FR2707347B1/fr not_active Expired - Fee Related
-
1994
- 1994-07-01 ES ES94924220T patent/ES2118426T3/es not_active Expired - Lifetime
- 1994-07-01 JP JP50381495A patent/JP3737106B2/ja not_active Expired - Fee Related
- 1994-07-01 EP EP94924220A patent/EP0707684B1/fr not_active Expired - Lifetime
- 1994-07-01 WO PCT/EP1994/002155 patent/WO1995002121A1/fr active IP Right Grant
- 1994-07-01 US US08/581,603 patent/US5642707A/en not_active Expired - Lifetime
- 1994-07-01 DE DE69411011T patent/DE69411011T2/de not_active Expired - Fee Related
- 1994-07-01 KR KR1019960700117A patent/KR100326501B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100326501B1 (ko) | 2002-10-12 |
WO1995002121A1 (fr) | 1995-01-19 |
DE69411011D1 (de) | 1998-07-16 |
US5642707A (en) | 1997-07-01 |
ES2118426T3 (es) | 1998-09-16 |
JPH08512378A (ja) | 1996-12-24 |
FR2707347B1 (fr) | 1995-09-22 |
JP3737106B2 (ja) | 2006-01-18 |
FR2707347A1 (fr) | 1995-01-13 |
EP0707684A1 (fr) | 1996-04-24 |
DE69411011T2 (de) | 1998-11-19 |
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