DE102009059661B4 - Device for determining and displaying the boost pressure - Google Patents
Device for determining and displaying the boost pressure Download PDFInfo
- Publication number
- DE102009059661B4 DE102009059661B4 DE102009059661.5A DE102009059661A DE102009059661B4 DE 102009059661 B4 DE102009059661 B4 DE 102009059661B4 DE 102009059661 A DE102009059661 A DE 102009059661A DE 102009059661 B4 DE102009059661 B4 DE 102009059661B4
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- Prior art keywords
- pressure
- display device
- air line
- boost pressure
- charge air
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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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
- F02M35/1038—Sensors for intake systems for temperature or pressure
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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
- F02D23/00—Controlling engines characterised by their being supercharged
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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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10157—Supercharged engines
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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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
- F02M35/10386—Sensors for intake systems for flow rate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/24—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid specially adapted for measuring pressure in inlet or exhaust ducts of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
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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
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
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- 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
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Instrument Panels (AREA)
Abstract
Vorrichtung zur Ermittlung und Anzeige des Ladedrucks einer Brennkraftmaschine, welche eine Einrichtung zur Erhöhung des Drucks der derselben über eine Ladeluftleitung zugeführten Luft aufweist, mit einer Anzeigeeinrichtung zum Anzeigen des Ladedrucks, dadurch gekennzeichnet, dass die Anzeigeeinrichtung (10) zumindest mittelbar mit einer in der Ladeluftleitung (2) in Strömungsrichtung (x) der Luft nach einer Drosselklappe (7) angeordneten Sensoreinrichtung (9) verbunden ist und den von der Sensoreinrichtung (9) ermittelten Ladedruck anzeigt.A device for determining and displaying the boost pressure of an internal combustion engine, which has a device for increasing the pressure of the air supplied to it via a charge air line, with a display device for displaying the charge pressure, characterized in that the display device (10) at least indirectly with one in the charge air line (2) is connected in the flow direction (x) of the air after a throttle valve (7) arranged sensor device (9) and indicates the boost pressure determined by the sensor device (9).
Description
Die Erfindung betrifft eine Vorrichtung zur Ermittlung und Anzeige des Ladedrucks einer Brennkraftmaschine nach der im Oberbegriff von Anspruch 1 näher definierten Art.The invention relates to a device for determining and displaying the boost pressure of an internal combustion engine according to the closer defined in the preamble of
Eine solche Vorrichtung ist beispielsweise aus der
Derartige Vorrichtungen mit entsprechenden, meist in einem Kombiinstrument im Armaturenbrett angeordneten Anzeigeeinrichtungen sind aus dem allgemeinen Stand der Technik bekannt. Hierbei wird der gemessene Ladedruck dem Fahrer analog oder digital angezeigt. Da bei geringen Drehzahlen der Brennkraftmaschine einer im Abgasstrang angeordneten Turbine und somit auch einem mit der Turbine verbundenen Verdichter meist nur sehr wenig Energie zugeführt wird, erfolgt der Ladedruckaufbau bei solchen geringen Motordrehzahlen meist stark verzögert. Insbesondere wenn zur Verbesserung ihres Ansprechverhaltens Turbolader mit variabler Turbinengeometrie, sogenannte VTG-Lader, eingesetzt werden, wird bereits bei geringen Drehzahlen ein gewisser Ladedruck aufgebaut. Dieser Ladedruck wird der Brennkraftmaschine allerdings aufgrund der in diesem Betriebszustand noch zumindest annähernd geschlossenen Drosselklappe, die sich in der Ladeluftleitung der Brennkraftmschine befindet, nicht zugeführt.Such devices with corresponding, usually arranged in a dash panel instrument in the dashboard display devices are known from the general state of the art. Here, the measured boost pressure to the driver is displayed analog or digital. Since at low speeds of the internal combustion engine arranged in the exhaust line turbine and thus also a compressor connected to the turbine usually very little energy is supplied, the boost pressure build-up is usually greatly delayed at such low engine speeds. In particular, when used to improve their response turbocharger with variable turbine geometry, so-called VTG superchargers, a certain boost pressure is built up even at low speeds. However, this boost pressure is not supplied to the internal combustion engine due to the throttle valve which is still at least approximately closed in this operating state and which is located in the charge air line of the internal combustion engine.
Es kann jedoch zu Irritationen des Fahrers führen, wenn er durch eine geringe Betätigung des Fahrpedals nur wenig Leistung der Brennkraftmaschine abrufen möchte, der Turbolader jedoch aufgrund der oben beschriebenen Umstände bereits einen gewissen Ladedruck erzeugt und dieser steigende Ladedruck in der Anzeigeeinrichtung angezeigt wird.However, it can lead to irritation of the driver if he wants to retrieve little power of the engine by a slight actuation of the accelerator pedal, but the turbocharger already generates a certain boost pressure due to the circumstances described above and this increasing boost pressure is displayed in the display device.
Auch beim sogenannten negativen Lastsprung, der sich ergibt, wenn der Fahrer vom Gas geht und der Ladedruck durch das Aufstauen der Luft vor der Drosselklappe ansteigt, ergibt sich eine kurze Ladedruckerhöhung, die zu Irritationen des Fahrers führt, da er ja verzögern bzw. zumindest nicht beschleunigen möchte, die Ladedruckanzeige jedoch eine diesem Wunsch widersprechende Erhöhung des Ladedrucks anzeigt.Even with the so-called negative load jump, which results when the driver goes off the gas and the boost pressure increases by damming the air in front of the throttle, there is a short increase in boost pressure, which leads to irritation of the driver, since he delay yes or at least not However, the boost pressure display indicates a contradictory to this desire increase in boost pressure.
Es ist daher Aufgabe der vorliegenden Erfindung, eine Vorrichtung zur Ermittlung und Anzeige des Ladedrucks bei einer Brennkraftmaschine zu schaffen, welche die oben beschriebenen Irritationen im Rahmen einer konstruktiv einfachen Lösung vermeidet.It is therefore an object of the present invention to provide a device for detecting and displaying the charge pressure in an internal combustion engine, which avoids the above-described irritations in the context of a structurally simple solution.
Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention, this object is achieved by the features mentioned in
Durch die erfindungsgemäße Ermittlung des Ladedrucks in einem in Strömungsrichtung der Luft der Drosselklappe nachfolgenden Bereich der Ladeluftleitung wird in der Anzeigeeinrichtung der Ladedruck nach der Drosselklappe und somit der der Brennkraftmaschine tatsächlich zugeführte Ladedruck angezeigt, wodurch bei geringer Betätigung des Fahrpedals in der Anzeigeeinrichtung kein Ladedruck angezeigt wird. Dasselbe ergibt sich auch bei einem negativen Lastsprung, da in diesem Fall ja durch das Loslassen des Fahrpedals die Drosselklappe geschlossen ist und somit die der Brennkraftmaschine zugeführte Luft nicht unter einem erhöhten Druck steht.As a result of the determination according to the invention of the boost pressure in a downstream region of the charge air line in the flow direction of the air of the throttle valve, charge pressure is actually indicated in the display device after the throttle valve and thus the boost pressure actually supplied to the internal combustion engine, whereby no boost pressure is displayed in the display device when the accelerator pedal is pressed lightly , The same is true even with a negative load jump, since in this case yes by releasing the accelerator pedal, the throttle valve is closed and thus the engine supplied air is not under an increased pressure.
Bei starker Betätigung des Fahrpedals, also bei hoher Leistungsanforderung an die Brennkraftmaschine, öffnet sich die Drosselklappe vollständig und es wird in der Anzeigeeinrichtung ein sehr schneller Ladedruckaufbau dargestellt, da in dem Bereich der Ladeluftleitung vor der Drosselklappe bereits zuvor ein gewisse Ladedruck aufgebaut wurde, der dann zu einer sehr schnellen Erhöhung des Ladedrucks führt. Die optische Darstellung dieses spontantne Anspruchverhaltens wird vom Fahrer positiv bewertet.Upon strong actuation of the accelerator pedal, so at high power requirement of the engine, the throttle opens completely and it is shown in the display device a very fast boost pressure build-up, since in the area of the charge air line before the throttle before a certain boost pressure has been built, then leads to a very rapid increase in boost pressure. The optical representation of this spontaneous claim behavior is positively evaluated by the driver.
In einer sehr vorteilhaften Weiterbildung der Erfindung kann vorgesehen sein, dass der in der Anzeigeeinrichtung angezeigte Druck die Druckdifferenz des in der Ladeluftleitung herrschenden Drucks und des Atmosphärendrucks ist. Auf diese Weise wird in der Anzeigeeinrichtung lediglich der tatsächliche, gegenüber der Umgebung vorhandene Überdruck in der Ladeluftleitung angezeigt.In a very advantageous development of the invention can be provided that the pressure displayed in the display device is the pressure difference of the pressure prevailing in the charge air line and the atmospheric pressure. In this way, only the actual overpressure present in the charge air line is displayed in the display device.
In diesem Zusammenhang kann des weiteren vorgesehen sein, dass die Anzeigeeinrichtung so ausgebildet ist, dass sie ausschließlich Drücke anzeigt, welche mindestens so hoch wie der Atmosphärendruck sind. Dies führt zu einer Beruhigung des in der Anzeigeeinrichtung angezeigten Werts, da negative Werte, also wenn in der Ladeluftleitung ein geringerer Druck als der Atmosphärendruck herrscht, nicht angezeigt werden, da diese Information für den Fahrer nicht entscheidend ist.In this context, it can further be provided that the display device is designed so that it displays only pressures which are at least as high as the atmospheric pressure. This leads to a calming of the value displayed in the display device, since negative values, that is to say when there is a lower pressure than the atmospheric pressure in the charge air line, are not displayed since this information is not decisive for the driver.
In Anspruch 9 ist ein Verfahren zur Ermittlung und Anzeige des Ladedrucks der Brennkraftmaschine angegeben.In
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den restlichen Unteransprüchen. Ein Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung und Zeichnung näher erläutert.Further advantageous embodiments and modifications of the invention will become apparent from the remaining dependent claims. An embodiment of the invention is explained in more detail in the following description and drawings.
Es zeigt:It shows:
In der Ladeluftleitung
Die Sensoreinrichtung
Die Sensoreinrichtung
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102009059661.5A DE102009059661B4 (en) | 2009-12-19 | 2009-12-19 | Device for determining and displaying the boost pressure |
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DE102009059661.5A DE102009059661B4 (en) | 2009-12-19 | 2009-12-19 | Device for determining and displaying the boost pressure |
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DE102009059661A1 DE102009059661A1 (en) | 2011-06-22 |
DE102009059661B4 true DE102009059661B4 (en) | 2014-10-09 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19835594A1 (en) * | 1998-08-06 | 2000-02-10 | Audi Ag | Multi-cylinder internal combustion engine has first and further induction tracts plus first and further exhaust tracts communicating together upstream of exhaust turbochargers. |
DE102005052004A1 (en) * | 2004-11-02 | 2006-05-11 | Yazaki Corp. | Vehicle display device |
DE102007000479A1 (en) * | 2006-09-20 | 2008-04-10 | Denso Corp., Kariya | Supercharging pressure controller for combustion engine controlling system, has turbine provided in engine exhaust system and exhaust gas drive magnitude evaluation device for evaluating exhaust gas drive magnitude components of compressor |
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2009
- 2009-12-19 DE DE102009059661.5A patent/DE102009059661B4/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19835594A1 (en) * | 1998-08-06 | 2000-02-10 | Audi Ag | Multi-cylinder internal combustion engine has first and further induction tracts plus first and further exhaust tracts communicating together upstream of exhaust turbochargers. |
DE102005052004A1 (en) * | 2004-11-02 | 2006-05-11 | Yazaki Corp. | Vehicle display device |
DE102007000479A1 (en) * | 2006-09-20 | 2008-04-10 | Denso Corp., Kariya | Supercharging pressure controller for combustion engine controlling system, has turbine provided in engine exhaust system and exhaust gas drive magnitude evaluation device for evaluating exhaust gas drive magnitude components of compressor |
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