EP2161439B1 - Verfahren zur Unterstützung und/oder Steuerung und/oder Regelung des Treibstoffverbrauchs eines Verbrennungsmotors - Google Patents

Verfahren zur Unterstützung und/oder Steuerung und/oder Regelung des Treibstoffverbrauchs eines Verbrennungsmotors Download PDF

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Publication number
EP2161439B1
EP2161439B1 EP09370013A EP09370013A EP2161439B1 EP 2161439 B1 EP2161439 B1 EP 2161439B1 EP 09370013 A EP09370013 A EP 09370013A EP 09370013 A EP09370013 A EP 09370013A EP 2161439 B1 EP2161439 B1 EP 2161439B1
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Prior art keywords
fuel
tank
buffer tank
pump
level
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EP09370013A
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English (en)
French (fr)
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EP2161439A1 (de
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Paul Cathelain
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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
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
    • 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
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
    • 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
    • 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
    • F02M37/18—Feeding by means of driven pumps characterised by provision of main and auxiliary pumps

Definitions

  • the invention relates to a method of assisting and / or controlling and / or regulating the consumption of a heat engine to a value less than or equal to a given consumption.
  • This method will find particular application in all areas where it is desired to control the fuel consumption of a thermal engine engine, such as for example a motorized vehicle (eg automobile, motor boat or other) or construction machinery, machines agricultural, alternators ...
  • a thermal engine engine such as for example a motorized vehicle (eg automobile, motor boat or other) or construction machinery, machines agricultural, alternators ...
  • Document is also known DE-37 32 293 a method and a device for measuring the consumption of an engine in which an auxiliary reservoir is provided between a main tank and the engine.
  • the auxiliary tank is powered via an electronically controlled pump.
  • the fuel Downstream of the intermediate tank, the fuel is conveyed to the engine through a second pump, the unused fuel being returned to said intermediate tank.
  • the control electronics of the pump implement a regulation and makes it possible to maintain the fuel level in the intermediate reservoir at a constant level. Electronics can calculate with precision engine consumption.
  • the document WO 2006/135803 and the document EP-0475515 teach similar devices.
  • the object of the present invention is to overcome the aforementioned drawbacks by providing a method of assisting and / or controlling and / or regulating the fuel consumption allowing a reliable and reliable control of the consumption of an engine.
  • Another object of the present invention is to provide such a method which relies in particular on mechanical means for its implementation and can be, if necessary, implemented without electronics.
  • Another object of the invention is to propose a device for implementing the method.
  • the invention also relates to a thermal engine device suitable for carrying out the method and comprising a main fuel tank supplying fuel, via a feed pump, the heat engine.
  • the device further comprises a buffer tank and a positive displacement pump for filling the buffer tank from the fuel of the main tank, said supply pump conveying the fuel from the buffer tank to said engine, the fuel delivered and not consumed by the engine being recycled to the buffer tank via a return line.
  • the device has means for selecting an operating mode and means for varying the fuel reception volume of the buffer tank according to the selected operating mode.
  • the invention relates first of all to a method of assisting and / or controlling and / or regulating the fuel consumption of a heat engine to a value less than or equal to a given consumption.
  • This method is implemented in a device 1 with a heat engine M such as, for example, a motor vehicle or the like, comprising a main tank 2 of fuel supplying fuel, via a feed pump P a2 , said engine M, as illustrated in FIG. figure 1 especially.
  • a heat engine M such as, for example, a motor vehicle or the like, comprising a main tank 2 of fuel supplying fuel, via a feed pump P a2 , said engine M, as illustrated in FIG. figure 1 especially.
  • the volume of fuel delivered by said first pump P v1 is thus controlled, and it is thus ensured that the engine M does not take a higher amount of fuel.
  • the buffer tank 3 makes it possible to accumulate, with respect to the determined consumption value, the excess fuel which has not been consumed by the engine M, thus allowing brief over-consumption of the engine if necessary.
  • the motor can thus be controlled in an irregular manner, under different power regimes delivered, as long as the average value consumed by the motor does not exceed the set value C s .
  • the determined consumption is an hourly consumption, such as for example expressed in liters per hour, the setpoint C s is then a constant value.
  • said determined consumption can be updated periodically according to different parameters of use of the device 1 and an update period.
  • a parameter can be the average speed of the vehicle over the update period considered.
  • An electronics, with a processor, can allow the implementation of this update of the setpoint value C s .
  • the volume of the buffer reserve 3 is varied to increase or reduce the volume of fuel that said tank can receive, according to a specific operating mode of the engine.
  • the volume of the buffer reserve 3 is reduced in the case of low consumption, namely low set point values C s , and the volume of the buffer tank 3 is increased in the case of high consumption, for higher setpoints.
  • the terms weak and strong, relative to the consumption, are here determined relative to each other.
  • said volume variation of the buffer tank 3 can be carried out by pressing more or less a volume body in said reserve to change its internal volume.
  • it may be provided to modify the volume "virtually" by other means, including an electrical / electronic circuit controlled by the float.
  • the invention can notably provide two modes of operation of the device with a "low power” operating mode and a “high power” operating mode.
  • the auxiliary reserve 5 can be mobilized only in the so-called "high consumption” operating mode.
  • the fuel level is monitored in the buffer tank 3 and the supply pump P a2 is stopped when the fuel level drops below a low level.
  • the motor will then graze signaling to the operator that the device is overconsumption relative to the desired setpoint.
  • This embodiment will be particularly intended for motorized devices whose stopping or deceleration of the engine would not be contrary to security requirements.
  • the low level is controlled in the buffer tank 3 and overconsumption is signaled when the fuel level drops below a low level.
  • This may include an audible or visual signal.
  • the method may include increasing the flow rate of the first pump, namely the positive displacement pump P V1 , to ensure the supply of fuel to the engine M and to prevent a motor power failure.
  • the system is thus "disengaged", the flow rate of the positive displacement pump P v1 is no longer controlled according to the setpoint value C s .
  • This embodiment may be suitable in particular for devices, such as motor vehicles in which a motor failure may be contrary to security requirements.
  • the invention also relates to a thermal engine device, such as in particular a motor vehicle, particularly suitable for carrying out the method.
  • This device as shown by Figures 1 or 2 , comprises a main tank 2 of fuel supplying fuel fuel, via a supply pump P a2 to a heat engine M.
  • the device further comprises a buffer tank 3 and a positive displacement pump P v1 for filling the buffer tank from the fuel of the main tank 2.
  • the feed pump P a2 conveys the fuel from the buffer tank 3 to the engine M.
  • the fuel delivered and not consumed by the engine is recycled to the buffer tank 3 via a pipe 6.
  • This device may in particular have means for controlling the level of the fuel in the tank 3 and means for signaling overconsumption when the fuel level in said buffer tank drops below a low level.
  • the control means may in particular be constituted by a float which lowers or rises according to the fluctuations of the level in the tank. This float can be coupled to an electrical track for activating the signaling means when the low level is reached.
  • the device further has means 7 for varying the fuel receiving volume of the buffer tank 3 according to the operating mode of the engine. It may be, as illustrated in figure 1 or 2 , a body controlled by a servo motor that sinks more or less into the tank to increase or decrease its reception volume.
  • this change in volume can be achieved "virtually" by controlling the fuel level in the buffer tank 3 and stopping the positive displacement pump, namely the first pump P v1 , when the fuel level increases above a high level.
  • this level can thus depend on the mode of operation.
  • the volumetric pump P v1 delivers again at a rate corresponding to the setpoint C s .
  • the example of figure 1 is a device comprising successively the main tank 2, and a positive displacement pump P v1 .
  • the latter draws fuel from the main tank to convey it to the buffer tank 3.
  • a supply pump P a2 pulls the fuel from the buffer tank 3 to convey it to the engine M, including the injectors of said engine M.
  • the fuel conveyed is recycled through a return line 6 to the buffer tank 3.
  • the device can provide means for controlling the level of the fuel in the buffer tank 3.
  • signaling means such as an audible or visual alarm can be activated. If the motor continues to over-consume and the level drops further below this level and reaches a critical low level, the flow rate of the pump P v1 can be increased to provide power to the motor M and prevent a fault power.
  • means can be provided for stopping the supply pump P a2 as long as the fuel level in the buffer tank 3 is lower than a low level.
  • an overflow line 8 may be provided to evacuate the excess fuel from the buffer tank 3 to the main tank 2 or an auxiliary tank 5 as described below.
  • the embodiment of the figure 2 differs from that of the figure 1 in that it has, in addition to the main tank 2 and the buffer tank 3, an auxiliary tank 5.
  • This auxiliary tank 5 fills in the case where the fuel level in the tank 3 reaches a certain intermediate overflow value thanks to an overflow pipe or overflow.
  • a P volumetric pump P v3 allows to refill the buffer tank 3 from the fuel of the auxiliary tank 5 when the fuel level in the buffer tank 3 is lowered and reaches a certain low level.
  • This auxiliary reservoir 5 is mobilized, in particular, only in certain operating modes of the device where consumption is high. In the case of a range of lower consumption values, the auxiliary reserve is not mobilized.
  • the pump P v3 is thus controlled according to the operating modes of the device.
  • a control electronics in particular makes it possible to control the first pump P v1 , or even the third pump P v3 , as a function of the fuel level in the buffer tank 2, or even the consumption setpoint C s .
  • the electronics can be replaced by a mechanical control and electrical contactors

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Claims (9)

  1. Verfahren zur Steuerung und/oder zur Überwachung und/oder zur Regelung des Treibstoffverbrauchs eines Verbrennungsmotors bei einem Wert, der kleiner als oder gleich groß ist wie ein Sollverbrauch, das in einer Vorrichtung (1) mit Verbrennungsmotor (M), wie insbesondere in einem Kraftfahrzeug umgesetzt sei, umfassend einen Kraftstoffliauptbehälter (2), der den Verbrennungsmotor (M) über eine Speisepumpe (Pa2) mit Kraftstoff versorgt, bei dem:
    - eine Verbrauchseinstellung (C3) festgelegt wird, die dem Verbrauchssollwert entspricht,
    - ein Kraftstoffspeicher (3) vorgesehen wird, der aus dem Hauptbehälter (2) über eine Verdrängerpumpe (Pv1) versorgt wird, die als erste Pumpe bezeichnet wird,
    - die Fördermenge der besagten ersten Verdrängerpumpe (Pv1) bei einem konstanten Wert eingestellt wird, der der besagten Verbrauchseinstellung (C3) entspricht,
    - der Motor (M) mit dem Kraftstoff aus dem Kraftstoffspeicher (3) über die besagte Speisepumpe (Pa2) gespeist wird, die als zweite Pumpe bezeichnet wird,
    - der von dem Motor (M) nicht verbrauchte Treibstoff von neuem in den besagten Kraftstoffspeicher (3) im Kreislauf umgepumpt wird,
    dadurch gekennzeichnet, dass
    - das Volumen des Pufferbehälters (3) variiert wird, um die Kraftstoffmenge, die der besagte Behälter aufnehmen kann, in Abhängigkeit von einer bestimmten Betriebsart des Motors zu steigern oder zu reduzieren.
  2. Verfahren nach Anspruch 1, bei dem:
    - ein zusätzlicher Kraftstoffvorratsbehälter (5) vorgesehen wird,
    - der besagte zusätzliche Kraftstoffvorratsbehälter (5) gespeist wird, bis der Füllstand in dem Kraftstoffspeicher einen bestimmten Überlaufwert erreicht,
    - der besagte Kraftstoffspeicher (3) über eine Verdrängerpumpe (Pv3), die als dritte Pumpe bezeichnet wird, erneut gespeist wird.
  3. Verfahren nach Anspruch 2, bei dem zwei Betriebsarten der Vorrichtung vorgesehen sind, eine Betriebsart "Schwacher Verbrauch" und eine Betriebsart "Starker Verbrauch", und der zusätzliche Vorrat nur in der besagten Betriebsart "Starker Verbrauch" eingesetzt wird.
  4. Verfahren nach irgendeinem der Ansprüche 1 bis 3, bei dem der Füllstand des Kraftstoffs in dem Kraftstoffspeicher (3) kontrolliert wird und ein Überverbrauch gemeldet wird, wenn der Füllstand unter einem Niedrigstand sinkt.
  5. Verfahren nach irgendeinem der Ansprüche 1 bis 4, bei dem der Füllstand im Kraftstoffspeicher (3) kontrolliert wird und wenn der Füllstand des Kraftstoffs unter einem kritischen Niedrigstand sinkt, die Fördermenge der besagten ersten Pumpe (Pv1) erhöht wird.
  6. Verfahren nach irgendeinem der Ansprüche 1 bis 3, bei welchem der Füllstand des Kraftstoffs in dem Kraftstoffspeicher (3) kontrolliert wird und die Speisepumpe (Pa2) abgestellt wird, wenn der Füllstand des Kraftstoffs unter einem Niedrigstand sinkt.
  7. Vorrichtung wie ein Kraftfahrzeug, umfassend einen Kraftstoffhauptbehälter (2), der den Verbrennungsmotor (M) über eine Speisepumpe (Pa2) mit Kraftstoff versorgt, umfassend außerdem einen Kraftstoffspeicher (3) und eine Verdrängerpumpe (Pv1), um den Kraftstoffspeicher (3) mit Kraftstoff aus dem Kraftstoffhauptbehälter (2) zu befüllen, wobei die besagte Speisepumpe (Pa2) den Treibstoff aus dem Kraftstoffspeicher (3) zu dem Motor befördert, wobei der zu dem Motor beförderte und von ihm nicht verbrauchte Kraftstoff von neuem in den Kraftstoffspeicher (3) über eine Leitung (6) im Kreislauf umgepumpt sei, dadurch gekennzeichnet, dass sie Mittel zur Auswahl einer Betriebsart sowie Mittel aufweist, um das Kraftstoffaufnahmevolumen in dem Kraftstoffspeicher (3) in Abhängigkeit von der ausgewählten Betriebsart zu verändern.
  8. Vorrichtung nach Anspruch 7, aufweisend Mittel zur Überwachung des Füllstands des Kraftstoffs in dem Kraftstoffspeicher (3) und Mittel zur Meldung eines Überverbrauchs, wenn der Füllstand des Kraftstoffs in dem besagten Behälter (3) unter einem Niedrigstand sinkt.
  9. Vorrichtung nach Anspruch 7 oder 8, aufweisend außerdem einen zusätzlichen Vorratsbehälter (5), eine Überlaufleitung am Kraftstoffspeicher (3), erlaubend den Überlauf des Treibstoffs in den zusätzlichen Vorratsbehälter (5), eine Verdrängerpumpe (Pv3), erlaubend, den Kraftstoffspeicher (3) erneut mit Treibstoff aus dem zusätzlichen Vorratsbehälter (5) zu versorgen.
EP09370013A 2008-09-09 2009-09-07 Verfahren zur Unterstützung und/oder Steuerung und/oder Regelung des Treibstoffverbrauchs eines Verbrennungsmotors Active EP2161439B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804933A FR2935755B1 (fr) 2008-09-09 2008-09-09 Procede d'assistance et/ou de controle et/ou de regulation de la consommation d'un moteur thermique

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Publication Number Publication Date
EP2161439A1 EP2161439A1 (de) 2010-03-10
EP2161439B1 true EP2161439B1 (de) 2011-03-23

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EP (1) EP2161439B1 (de)
AT (1) ATE503104T1 (de)
DE (1) DE602009000952D1 (de)
FR (1) FR2935755B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089668B (zh) * 2014-08-05 2017-02-01 中国海洋大学 一种渔船燃油消耗率实船测量系统及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264651A (en) * 1961-04-06 1966-08-02 Ramona E Davis Fuel consumption recorder
FR2513757B1 (fr) * 1981-09-29 1985-09-13 Fallon Daniel Appareil et procede pour la mesure de la consommation en carburant d'un moteur
DE3732293A1 (de) * 1987-09-25 1989-04-06 Pierburg Luftfahrtgeraete Verfahren und vorrichtung zum messen des kraftstoffverbrauchs einer verbrennungsmaschine
IT1244443B (it) * 1990-09-13 1994-07-15 Roberto Gandini Dispositivo per misurare il consumo di carburante in motori a combustione interna
WO2006135803A2 (en) * 2005-06-09 2006-12-21 Memat, Llc Fuel monitoring system for motor vehicles

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Publication number Publication date
FR2935755A1 (fr) 2010-03-12
FR2935755B1 (fr) 2012-06-15
EP2161439A1 (de) 2010-03-10
ATE503104T1 (de) 2011-04-15
DE602009000952D1 (de) 2011-05-05

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