EP1105633B1 - Pompe d'alimentation en carburant commandee electriquement, pour moteur a combustion interne - Google Patents
Pompe d'alimentation en carburant commandee electriquement, pour moteur a combustion interne Download PDFInfo
- Publication number
- EP1105633B1 EP1105633B1 EP99929467A EP99929467A EP1105633B1 EP 1105633 B1 EP1105633 B1 EP 1105633B1 EP 99929467 A EP99929467 A EP 99929467A EP 99929467 A EP99929467 A EP 99929467A EP 1105633 B1 EP1105633 B1 EP 1105633B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- fuel
- pressure
- motor
- control unit
- 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
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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
- F02D41/30—Controlling fuel injection
- F02D41/3082—Control of electrical fuel pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
Definitions
- the invention relates to the field of circuits for supplying fuel to internal combustion engines for motor vehicles, and more particularly those equipped with fuel injection facilities for internal combustion engines of the spark-ignition type, or compression ignition (diesel), direct injection or indirect, and including a motor fuel pump electric.
- a fuel supply circuit an injection system for a combustion engine internal includes a pump, driven by an electric motor, and taking fuel from a tank for the pump back to an injector supply manifold by a supply line, on which is mounted a Fuel Filter.
- a pressure regulator downstream of the ramp, maintains a supply pressure in the latter injectors, which is differential pressure substantially constant between the fuel pressure and the atmospheric pressure or pressure at the intake manifold air to the engine, regardless of the engine's demand for fuel, i.e. whatever the fuel flow injected into the engine by the injectors, according to engine operating conditions. Fuel in excess is returned to the tank by the regulator pressure using a return line.
- the pump in question does not supply not directly the injector rail, but a second pump, high pressure, and a second regulator, high pressure, which feed the ramp.
- This classic circuit has the disadvantages to require a significant permanent flow of fuel at the outlet of the pump, therefore a consumption of electrical current not negligible as well as a significant operating noise of the pump, and leads to significant heating of the fuel passing through the rail and the pressure regulator, and brought back to the tank, resulting in significant fuel vapor releases.
- Such a fuel supply circuit is, for example, known from EP-A-577,477, in which further a differential pressure sensor is integrated in the regulator, and produced in the form of a pressure sensor, diaphragm, to cut off the power to the injectors when the fuel pressure is below a threshold predetermined.
- the regulator pressure upstream of the injector supply manifold between the inlet of this ramp and a filter downstream of the pump, and preferably near or in the tank last on a bypass line leading into the tank and which connects to the supply line, between the filter and the inlet of the ramp.
- the pressure regulator also ensures the return of the excess fuel to the tank.
- circuits have the advantages of reducing the amount of fuel passing through and passing through the pump the filter, and therefore reduce the heating of the fuel as well as fuel consumption and noise.
- these circuits are not entirely satisfactory, because they require cost pressure sensors high, due to the required measurement accuracy, and these circuits do not always lead to regulation in satisfactory pressure.
- the pressure regulating device fuel arranged on the supply line of the injectors by the pump, is a membrane device separating two rooms in a box, one of the rooms, at atmospheric pressure, containing a force spring adjustable by an adjusting screw and stressing the membrane, carrying one of two electrical contact terminals of a pressure sensor, to the other electrical terminal of this sensor which is housed in the other room, crossed by the fuel flowing from the pump to the engine.
- the fuel pressure from the pump exerts on the sufficient force to repel the spring, the electrical contact between the two terminals of the pressure sensor integrated in the pressure regulating device is broken, and the power supply to the pump motor is interrupted.
- the pressure is of the diaphragm-stressed type, on one side, by atmospheric pressure or air pressure at the manifold intake as well as a calibrated spring, and, on the other side, by the pressure of the fuel feeding the rail and admitted into the regulator by an inlet valve, of which the shutter, possibly biased by a spring, is rigidly linked in displacement to the membrane.
- a regulator provides constant differential pressure injector supply whatever the demand for engine fuel, in a fuel system "no return" fuel.
- the pressure sensor is also of the membrane type stressed, on one side, by the fuel pressure at the pump outlet, and on the other side by a spring, the membrane displacing a movable contact by relative to a fixed contact of a control switch of a electronic module controlling the power supply to the pump drive motor.
- the calibration pressure of the pressure sensor is higher than the operating pressure required at regulator output. As the pump is not traveled only by the fuel actually used, the current consumption of the pump motor remains low compared to previous known embodiments comprising a branch on the supply line.
- the pressure sensor in pump outlet is also a pressure sensor at a threshold, associated with a pressure relief valve, and which, when detects fuel pressure at the pump outlet greater than a threshold, itself greater than the pressure nominal operation of the device, control, hand, a current pulse width modulator transmitted to the electric motor of the pump, and, on the other hand, opening the pressure relief valve for the return to the overpressure fuel tank in the supply line, between a non-return valve at the pump output and power regulator input of the ramp at constant differential pressure.
- FR-A-2 686 947 we also know a circuit distribution of fuel to an engine depending on the motor demand, and in which the pump speed is regulated to transmit fuel under pressure from tank to the engine, with a flow rate which varies according to electrical energy applied to the pump by a circuit itself controlled by a sensor detecting the amount of engine intake air.
- the pump works at a speed that is just enough to satisfy the motor demand, and pumping noise is reduced to low pump and motor speeds, as well as current transmitted to the pump at idle speeds of the engine.
- the electric pump is controlled either by closed loop, from the measurement of a parameter of operation of the power circuit, which is the most often the fuel pressure at the pump outlet, either by measuring the air flow at the intake manifold air to the motor, which air flow is indirectly related to the flow of fuel consumed by the engine.
- the installation must therefore include at least one sensor of this operating parameter, to send a control signal from an electronic unit performing the modulation of the electrical energy transmitted to the motor pump drive.
- the object of the invention is to propose a circuit fuel supply to an electric pump controlled by pressure, which retains all the advantages of circuits "without return "presented above without having the disadvantage of minus a specific sensor on the air and engine fuel to drive the pump.
- Another object of the invention is to propose such a circuit which can advantageously and simultaneously present in addition the advantages of known circuits for supplying fuel in which the pump is placed in a bowl of fuel reserve, itself arranged in a tank of fuel and to which bowl part of the fuel returned by the pump is derived, in the form of at least one jet of fuel injected into the bowl with a flow required to avoid defusing the pump.
- the fuel supply circuit according to the invention for an internal combustion engine, comprising a fuel pump with an electric motor, pumping fuel into a fuel tank, and feeding, directly or indirectly, a feed ramp at least one fuel injector, with assistance from at least one pressure regulator fuel, is characterized in that the pump motor is controlled by an electronic control unit so to align the pump outlet pressure with a pressure objective determined by the electronic control unit as being greater than the operating pressure of the regulator which is of the regulator type, and whose characteristic pressure is known from the electronic unit of control, the output pressure of the pump being determined by the electronic control unit according to a relation between the outlet pressure and at least the mean current of the pump motor.
- Pressure control is no longer ensured by a feedback loop using a fuel pressure at the inlet of the rail or in the supply line, but this fuel pressure, in a supply circuit otherwise substantially identical to a traditional "no return" circuit, is controlled towards the ramp by the regulator-regulator pressure, of known conventional structure, and upstream of the regulator-regulator, by electronic control unit which controls the pump to obtain the outlet pressure appropriate, higher than the operating pressure of the expander-regulator.
- This control is ensured by alignment of the actual pump outlet pressure, apprehended by the electronic control unit through at least the mean current of the pump motor, at one pressure objective calculated or developed by this control unit to meet the pressure criterion greater than the operating pressure of the regulator-regulator.
- the electronic control unit provides a mean current servo motor for the pump by calculating an error signal between a current objective means, corresponding to objective pressure, and the mean motor current measured by said unit.
- the relationship between the pump outlet pressure and at least the average current of the engine also takes into account at least the engine speed pump rotation and / or pump thermal state, and more precisely from its pumping stage, and / or the flow of the pump.
- This technical measure allows the pump to be controlled by pressure in the aforementioned manner while taking into account, plus, the fuel flow required in particular by the engine.
- the flow rate of the pump is determined in taking into account at least the engine flow, calculated by an electronic engine control unit, controlling at least injecting fuel into the engine, and associated with said electronic control unit, to which the unit engine control electronics transmits at least one flow information required by the engine.
- the flow rate of the pump is advantageously determined by also taking into account the required jet flow.
- Pump rotation speed can be determined by analysis of the instantaneous motor current and detection from the commutator to the motor.
- this switching detection of the motor manifold is obtained by filtering in at minus a high-pass filter of the instantaneous motor current.
- the regulator-regulator is advantageously placed immediately upstream of the rail and sets the fuel pressure in this last from the top fuel pressure that it receives from the pump.
- the fuel system in Figure 1 includes a fuel pump 1, which is a pump electric comprising, in a well known manner, a stage of pumping driven in rotation by an electric motor, preferably of the type supplied with electric current by motor collector switching.
- a fuel pump 1 which is a pump electric comprising, in a well known manner, a stage of pumping driven in rotation by an electric motor, preferably of the type supplied with electric current by motor collector switching.
- This electric pump 1 is placed in a bowl of fuel reserve 2, which is itself arranged on the bottom a fuel tank 3.
- Pump 1 draws fuel from the reserve bowl 2, from preferably through an upstream filter (not shown), and delivers the fuel through a downstream filter 5 into a supply line 6 to a pressure regulator fuel 7.
- This regulator 7 provides the fuel supply a ramp 8, at the downstream end of the pipeline feed 6, and which is a common feed ramp injectors 9 of an internal combustion engine 10. Upstream of regulator 7, a fraction of the fuel discharged by pump 1 in the supply line 6 is returned to bowl 2 in the form of a jet 11 injected into the base of bowl 2 with minimum flow required to avoid pump priming 1.
- regulator 7 directly supplies the 8 fuel rail at satisfactory operating pressure for supplying injectors 9 with pressure substantially constant differential between the pressure of fuel and air pressure at the intake manifold of the engine.
- the regulator 7 indirectly feeds the ramp, via a high pressure pump associated with a regulator at high pressure which determines the injection pressure of the fuel through the injectors 9.
- the regulator 7 is a regulator-regulator of a well-known type, for example at diaphragm with inlet valve, as in US-A-5,398,655 and FR-A-2 725 244, which defines the fuel pressure in ramp 8, or towards the inlet of the high pump pressure, from higher fuel pressure that it receives from pump 1, so that it can deliver, to the ramp 8 downstream, fuel under satisfactory pressure, whatever the fuel demand of the engine 10.
- Such a regulator-regulator 7 has the advantage of being of a simple, economical and undemanding structure in this which concerns the precision of the pressure it receives.
- Filter 5 and the fuel bypass to the jet 11 can be made in the form of a sub-assembly near the tank 3, or in the latter, in which this subset can be directly associated at pump 1.
- the control unit 4 controls the pump 1 so that its actual outlet pressure as aligned as possible on an objective pressure higher than the pressure of operation of regulator-regulator 7, itself controlled at the pressure at the engine air intake manifold 10, the pressure characteristic of the regulator-regulator 7 being known from unit 4, and this objective pressure being chosen so that simultaneously the pump flow satisfies as required by motor 10, for each operating point of the latter, as well as the minimum flow of good supply of the jet 11 back to the reserve bowl 2, to avoid defusing the pump 1.
- the unit 4 receives information at 12 motor flow rate, which is supplied to it by a unit engine control electronics of any suitable type known, who controls the injection, and therefore knows, for each engine operating point, times and durations fuel injection by the injectors 9 in the cylinders of the engine 10.
- the engine control unit (not advantageously also controls the ignition as well as possibly other functions, such as anti-skid, or even air intake in the case a motorized throttle body.
- the electronic control unit 4 of the invention is thus associated with the engine control unit, and is advantageously at least partially integrated into the latter, except possibly for its floor of power traversed by relatively large currents.
- control unit 4 as the control unit engine are electronic units including microprocessor or microcontroller computers, and storage means, in particular in the form of characteristic maps and characteristic curves of engine and circuit operating parameters fuel supply, especially the characteristic mean current of pump motor 1 as a function of output pressure of pump 1 in control unit 4.
- the control unit 4 has in memory at 13 the characteristic the flow rate of the jet 11 as a function of the pressure which reigns in line 6, and unit 4 then calculates at 14 the sum of the motor flow 12 and the jet flow 13 which constitutes a pump flow to be respected, taken into account in a block 15 implementing a functional model of the pump 1.
- This modeling block 15 comprises also programs implementing algorithms, maps stored in unit 4 to develop a signal 17 of average objective current for the motor of the pump 1, which corresponds to the objective pressure 16 of the pump, taking into account other operating parameters of pump 1, and in particular the temperature of the pump 1, and more precisely of its pumping stage, taken into counts in 18, as well as speed or speed rotation 19 of pump 1.
- This rotation speed is measured by unit 4, for example by current analysis pump 1 motor snapshot and switch detection of the collector of this motor. In a manner known in laboratory, and applied by the invention in unit 4, this detection of the motor collector switches pump 1 is supplied by filtering in at minus a high pass filter of the instantaneous current of this electric motor.
- the objective mean current signal 17 of the pump 1 is therefore available at the output of block 15 of modeling of the pump, in which it is determined to from objective pressure 16, and taking into account the rotation speed 19 of pump 1 and temperature 18 of the pumping stage of this pump 1 in the relation medium pressure current essentially given by a mapping in block 15.
- This average current signal 17 is used by unit 4 for current control means of pump 1 motor providing alignment searched for the actual pump outlet pressure on the objective pressure.
- unit 4 calculates the difference between the target average current 17 and the real average current 20 of the pump motor 1, which is measured in unit 4 by measuring a voltage drop across a shunt, known manner.
- the error signal 21 resulting from this difference between the average objective 17 and instantaneous currents 20 is transmitted to a block 22, in which it undergoes, by example, in a known manner, proportional processing, integral and derived by appropriate algorithms.
- the block 22 emits a differential control signal 23 transmitted at 24 at a nominal control current 25 of the electric motor pump 1, for example a pulse control current or voltage slots of variable width (or ratio variable opening cycle), so that this nominal control 25 is transformed into control current number 26 of the same type (with current pulses of width variable) which is delivered by unit 4 to the electric motor of pump 1, in order to align the average current measured 20 with the objective mean current 17, and thus align the pressure actual output of pump 1 at objective pressure 16 determined by the control unit 4.
- a nominal control current 25 of the electric motor pump 1 for example a pulse control current or voltage slots of variable width (or ratio variable opening cycle)
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
- la figure 1 est une vue schématique du circuit d'alimentation en carburant d'un moteur à injection, et
- les figures 2 et 3 sont des schémas de la régulation assurée par l'unité électronique de commande du circuit de la figure 1 pour piloter la pression de sortie de la pompe électrique de ce circuit sur une pression objective.
Claims (8)
- Circuit d'alimentation en carburant pour moteur (10) à combustion interne, comprenant une pompe (1)à carburant à moteur électrique, pompant du carburant dans un réservoir (3) de carburant et alimentant, directement ou indirectement, une rampe (8) d'alimentation d'au moins un injecteur (9) de carburant, avec l'assistance d'au moins un régulateur (7) de pression de carburant,
caractérisé en ce que le moteur de la pompe (1) est piloté par une unité (4) électronique de commande de façon à aligner la pression de sortie de la pompe (1) sur une pression objective (16), déterminée par l'unité (4) électronique de commande comme étant supérieure à la pression de fonctionnement du régulateur (7), qui est du type détendeur, et dont la caractéristique de pression est connue de l'unité (4) électronique de commande, la pression de sortie de la pompe (1) étant déterminée par ladite unité (4) selon une relation entre la pression de sortie et au moins le courant moyen (20) du moteur de la pompe (1). - Circuit d'alimentation selon la revendication 1, caractérisé en ce que l'unité (4) électronique de commande assure un asservissement en courant moyen du moteur par le calcul d'un signal d'erreur (21) entre un courant moyen objectif (17), correspondant à la pression objective (16), et le courant moyen (20) du moteur, mesuré par ladite unité (4).
- Circuit d'alimentation selon l'une des revendications 1 et 2, caractérisé en ce que ladite relation entre la pression de sortie de la pompe (1) et au moins le courant moyen (20) du moteur prend également en compte au moins le régime de rotation (19) de la pompe (1) et/ou l'état thermique (18) de l'étage de pompage de la pompe (1) et/ou le débit (14) de la pompe (1).
- Circuit d'alimentation selon la revendication 3, caractérisé en ce que le régime de rotation (19) de la pompe (1) est déterminé par analyse du courant instantané du moteur de la pompe (1) et détection des commutations du collecteur dudit moteur.
- Circuit d'alimentation de la revendication 4, caractérisé en ce que la détection des commutations du collecteur du moteur de pompe (1) est obtenue par filtrage dans au moins un filtre passe-haut du courant instantané dudit moteur.
- Circuit d'alimentation selon l'une quelconque des revendications 3 à 5, caractérisé en ce que le débit (14) de la pompe (1) est déterminé en prenant en compte au moins le débit (12) du moteur (10) à combustion interne, calculé par une unité électronique de contrôle moteur, pilotant au moins l'injection de carburant dans le moteur (10), et associée à ladite unité (4) électronique de commande, à laquelle l'unité électronique de contrôle moteur transmet une information de débit requis (12) par le moteur (10).
- Circuit d'alimentation selon la revendication 6, caractérisé en ce que la pompe (1) est disposée dans un bol (2) de réserve de carburant, lui-même disposé dans le réservoir (3) de carburant, et une fraction du carburant refoulé par la pompe (1) étant dérivée vers ledit bol (2), dans lequel cette fraction de carburant est injectée avec un débit de jet (11) nécessaire pour éviter le désamorçage de la pompe (1), le débit (14) de la pompe (1)étant déterminé en prenant également en compte ledit débit nécessaire (13) du jet (11).
- Circuit d'alimentation selon l'une quelconque des revendications 1 à 7, caractérisé en ce que ledit régulateur-détendeur (7) de pression de carburant est disposé immédiatement en amont de la rampe (8) et définit la pression de carburant dans cette dernière.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9808992 | 1998-07-13 | ||
| FR9808992A FR2781012B1 (fr) | 1998-07-13 | 1998-07-13 | Circuit d'alimentation en carburant a pompe electrique pilotee en pression objective, pour moteur a combustion interne |
| PCT/FR1999/001689 WO2000003135A1 (fr) | 1998-07-13 | 1999-07-09 | Pompe d'alimentation en carburant commandee electriquement, pour moteur a combustion interne |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1105633A1 EP1105633A1 (fr) | 2001-06-13 |
| EP1105633B1 true EP1105633B1 (fr) | 2002-04-03 |
Family
ID=9528603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99929467A Expired - Lifetime EP1105633B1 (fr) | 1998-07-13 | 1999-07-09 | Pompe d'alimentation en carburant commandee electriquement, pour moteur a combustion interne |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6453878B1 (fr) |
| EP (1) | EP1105633B1 (fr) |
| JP (1) | JP2002520537A (fr) |
| CN (1) | CN1096555C (fr) |
| BR (1) | BR9912063A (fr) |
| DE (1) | DE69901190T2 (fr) |
| ES (1) | ES2174619T3 (fr) |
| FR (1) | FR2781012B1 (fr) |
| PL (1) | PL344830A1 (fr) |
| WO (1) | WO2000003135A1 (fr) |
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|---|---|---|---|---|
| DE10224094A1 (de) * | 2002-05-31 | 2003-12-11 | Bayerische Motoren Werke Ag | Kraftstoffanlage für Fahrzeuge, insbesondere für Motorräder |
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| EP1671026A4 (fr) * | 2003-09-10 | 2015-02-25 | Pcrc Products | Systeme de regulation de carburant electronique destine a de petits moteurs |
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| DE102005023189A1 (de) * | 2005-05-19 | 2006-11-23 | Siemens Ag | Fördereinrichtung mit einer Kraftstoffpumpe |
| JP2007231907A (ja) * | 2006-03-03 | 2007-09-13 | Denso Corp | 燃料供給装置 |
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| US7980120B2 (en) * | 2008-12-12 | 2011-07-19 | GM Global Technology Operations LLC | Fuel injector diagnostic system and method for direct injection engine |
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| US8425200B2 (en) * | 2009-04-21 | 2013-04-23 | Xylem IP Holdings LLC. | Pump controller |
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| JP6062246B2 (ja) * | 2009-07-15 | 2017-01-18 | インテグレイテッド・デザインズ・リミテッド・パートナーシップIntegrated Designs,L.P. | モーター電流に基づいてポンプ圧を決定する調整回路および方法 |
| US8166943B2 (en) * | 2009-07-31 | 2012-05-01 | Ford Global Technologies, Llc | Fuel system control |
| GB2473278B (en) * | 2009-09-08 | 2014-06-18 | Gm Global Tech Operations Inc | Method and system for controlling fuel pressure |
| JP5054795B2 (ja) * | 2010-03-23 | 2012-10-24 | 日立オートモティブシステムズ株式会社 | 内燃機関の燃料供給制御装置 |
| US8707932B1 (en) | 2010-08-27 | 2014-04-29 | Paragon Products, Llc | Fuel transfer pump system |
| CN102338003A (zh) * | 2011-08-26 | 2012-02-01 | 龚文资 | 一种电控汽油发动机油泵防吸空装置 |
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| US10094319B2 (en) * | 2014-12-02 | 2018-10-09 | Ford Global Technologies, Llc | Optimizing intermittent fuel pump control |
| US10738727B2 (en) | 2015-02-03 | 2020-08-11 | Paragon Products, Llc | Electric pump pressure sensorless electronic pressure limiting and flow leveling system |
| DE102015202777A1 (de) * | 2015-02-16 | 2016-08-18 | Continental Automotive Gmbh | Verfahren zur Regelung einer Kraftstoffförderpumpe |
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| JP3060266B2 (ja) * | 1992-11-09 | 2000-07-10 | 株式会社ユニシアジェックス | エンジンの燃料供給装置 |
| US5379741A (en) * | 1993-12-27 | 1995-01-10 | Ford Motor Company | Internal combustion engine fuel system with inverse model control of fuel supply pump |
| US5398655A (en) | 1994-01-14 | 1995-03-21 | Walbro Corporation | Manifold referenced returnless fuel system |
| JPH07293397A (ja) * | 1994-04-28 | 1995-11-07 | Hitachi Ltd | 燃料供給装置および燃料供給制御方法 |
| FR2725244B1 (fr) | 1994-10-03 | 1996-12-20 | Marwal Systems | Dispositif d'alimentation en carburant pour vehicule automobile avec regulation de pression |
| JPH08144879A (ja) * | 1994-11-22 | 1996-06-04 | Nissan Motor Co Ltd | 燃料タンクの旋回槽構造 |
| JPH08210209A (ja) * | 1995-02-06 | 1996-08-20 | Zexel Corp | 高圧燃料噴射装置 |
| US5715797A (en) * | 1995-06-28 | 1998-02-10 | Nippondenso Co., Ltd. | Fuel supply system for internal combustion engine and method of adjusting it |
| JPH0914073A (ja) * | 1995-06-28 | 1997-01-14 | Nippondenso Co Ltd | 内燃機関用燃料供給装置 |
| JP3843484B2 (ja) * | 1995-07-31 | 2006-11-08 | 株式会社デンソー | リターンレス式内燃機関用燃料供給装置及びその調整方法 |
| JP3641027B2 (ja) * | 1995-08-04 | 2005-04-20 | カヤバ工業株式会社 | 電動式パワーステアリング装置 |
| JPH09324716A (ja) * | 1996-06-07 | 1997-12-16 | Fuji Heavy Ind Ltd | 車両用燃料ポンプの制御装置 |
| JP3216539B2 (ja) * | 1996-09-10 | 2001-10-09 | トヨタ自動車株式会社 | 内燃機関の燃料供給装置 |
| WO1998027333A1 (fr) * | 1996-12-17 | 1998-06-25 | Siemens Automotive Corporation | Systeme d'alimentation en carburant pour vehicule |
| US5762046A (en) * | 1997-02-06 | 1998-06-09 | Ford Global Technologies, Inc. | Dual speed fuel delivery system |
-
1998
- 1998-07-13 FR FR9808992A patent/FR2781012B1/fr not_active Expired - Lifetime
-
1999
- 1999-07-09 DE DE69901190T patent/DE69901190T2/de not_active Expired - Lifetime
- 1999-07-09 US US09/743,601 patent/US6453878B1/en not_active Expired - Lifetime
- 1999-07-09 EP EP99929467A patent/EP1105633B1/fr not_active Expired - Lifetime
- 1999-07-09 CN CN99808477A patent/CN1096555C/zh not_active Expired - Lifetime
- 1999-07-09 ES ES99929467T patent/ES2174619T3/es not_active Expired - Lifetime
- 1999-07-09 JP JP2000559343A patent/JP2002520537A/ja active Pending
- 1999-07-09 PL PL99344830A patent/PL344830A1/xx unknown
- 1999-07-09 BR BR9912063-1A patent/BR9912063A/pt not_active IP Right Cessation
- 1999-07-09 WO PCT/FR1999/001689 patent/WO2000003135A1/fr not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10224094A1 (de) * | 2002-05-31 | 2003-12-11 | Bayerische Motoren Werke Ag | Kraftstoffanlage für Fahrzeuge, insbesondere für Motorräder |
| DE10224094B4 (de) * | 2002-05-31 | 2010-06-02 | Bayerische Motoren Werke Aktiengesellschaft | Kraftstoffanlage für Fahrzeuge, insbesondere für Motorräder |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1105633A1 (fr) | 2001-06-13 |
| FR2781012A1 (fr) | 2000-01-14 |
| US6453878B1 (en) | 2002-09-24 |
| BR9912063A (pt) | 2001-04-03 |
| CN1096555C (zh) | 2002-12-18 |
| WO2000003135A1 (fr) | 2000-01-20 |
| ES2174619T3 (es) | 2002-11-01 |
| DE69901190D1 (de) | 2002-05-08 |
| DE69901190T2 (de) | 2002-11-28 |
| JP2002520537A (ja) | 2002-07-09 |
| FR2781012B1 (fr) | 2001-02-16 |
| PL344830A1 (en) | 2001-11-19 |
| CN1308710A (zh) | 2001-08-15 |
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