EP2243937A1 - Method for regulating the heat balance of a combustion engine - Google Patents

Method for regulating the heat balance of a combustion engine Download PDF

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Publication number
EP2243937A1
EP2243937A1 EP10002337A EP10002337A EP2243937A1 EP 2243937 A1 EP2243937 A1 EP 2243937A1 EP 10002337 A EP10002337 A EP 10002337A EP 10002337 A EP10002337 A EP 10002337A EP 2243937 A1 EP2243937 A1 EP 2243937A1
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EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
heat exchanger
heat
fluid
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.)
Withdrawn
Application number
EP10002337A
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German (de)
French (fr)
Inventor
Lars Caesar
Bernd Dr. Beyer
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Volkswagen AG
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Volkswagen AG
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Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP2243937A1 publication Critical patent/EP2243937A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/20—Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F01P2060/045—Lubricant cooler for transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/08—Cabin heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/16—Outlet manifold

Definitions

  • the invention relates to a method for regulating the heat balance of an internal combustion engine for a vehicle with a fluid circuit provided as a coolant circuit and controllable means for influencing the heat balance of the internal combustion engine, wherein a fluid temperature and further operating parameters of the internal combustion engine detected and the controllable devices in dependence of the fluid temperature and the other Operating parameters of the internal combustion engine are controlled.
  • a method of the type mentioned is from the document DE 102 28 355 A1 known.
  • a fluid temperature and other operating parameters of the internal combustion engine are detected and the controllable devices controlled in dependence of the fluid temperature and the further operating parameters of the internal combustion engine.
  • the invention has the object to perform a method of the type mentioned above in such a way that the distribution of the heat energy available in the vehicle from the heat sources optimally distributed taking into account the needs of individual heat users, so that a reduction in fuel consumption and emissions , Especially during the cold start of the internal combustion engine, is feasible.
  • a method in which an internal combustion engine, a transmission oil heat exchanger, an engine oil heat exchanger, a store for heated fluid and / or an exhaust heat exchanger deprived of heat and a passenger compartment heating heat exchanger, the internal combustion engine, the transmission oil heat exchanger, the engine oil heat exchanger, the memory and / or the exhaust gas heat exchanger is supplied heat.
  • This makes it possible that, for example, during a cold start of the engine different heat sources depending on the specific vehicle and aggregate conditions and / or customer requirements, for example, to the passenger compartment heating heat exchanger, exploited. In this case, a maximum of comfort and a minimum of consumption is realized in particular on the order of activation and deactivation of individual heat generator and heat user.
  • the accumulator is emptied by means of a particularly electrically driven pump and the warm fluid, in particular water, is fed into the internal combustion engine.
  • operating parameters are, for example, outside and inside temperature of the vehicle, temperature of the internal combustion engine, time, the state of the locking system of the vehicle, driving speed, brightness, speed and torque request of the driver and so on.
  • the pumps are switched off. This makes it possible that the warm fluid remains in the internal combustion engine and gives off heat to this.
  • the pump is switched on, the engine supply valve and the Abgastownübertragerumgehungsventil closed and the engine bypass valve are opened, wherein the fluid, bypassing the internal combustion engine, is passed through the exhaust gas heat exchanger to the passenger compartment heater.
  • the pumps arranged in the cooling circuit are driven electrically, mechanically, pneumatically and / or hydraulically.
  • a pressure equalization tank in the fluid circuit is used as storage for the heated fluid. This makes it possible that the heat energy can be stored independently of the operating state of the heat generator.
  • the surge tank as a memory, it is possible to dispense with a separate heat storage, which space in the vehicle can be saved. Also, the mass of the vehicle decreases, resulting in a reduction in fuel consumption and emissions.
  • the reservoir and / or the pressure compensation container have a volume which corresponds to the volume of the fluid lines in the internal combustion engine. As a result, the volume of the memory and thus the space requirement in the vehicle is limited to a necessary amount of fluid.
  • the invention allows numerous embodiments. To further clarify its basic principle, one of them is shown in the drawing and will be described below.
  • This shows a designed as a coolant circuit of an internal combustion engine 1 of a vehicle fluid circuit.
  • the fluid circuit has controllable devices 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 for influencing the heat balance of the internal combustion engine 1, wherein a fluid temperature and other operating parameters of the internal combustion engine 1 detected be and the controllable devices 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 depending on the fluid temperature and the other operating parameters of the internal combustion engine 1 are driven.
  • the internal combustion engine 1 a transmission oil heat exchanger 2, a motor oil heat exchanger 3, a memory 4 for heated fluid and / or an exhaust heat exchanger 5 heat withdrawn and a passenger compartment heating heat exchanger 6, the internal combustion engine 1, the transmission oil heat exchanger 2, the engine oil heat exchanger 3, the memory 4 and / or the exhaust heat exchanger 5 heat supplied.
  • the method according to the invention makes it possible, for example, for the accumulator 4 to be emptied as a function of at least one operating parameter of the vehicle and an operating parameter of the internal combustion engine 1 by means of a pump 7 and for the warm fluid to be conducted into the internal combustion engine 1.
  • the pumps 7, 8 are switched off at the start of the internal combustion engine 1.
  • the pump 7 is switched on, the engine supply valve 9 and the exhaust gas heat exchanger bypass valve 11 are closed and the engine bypass valve 10 is opened, whereby the fluid bypasses the internal combustion engine 1 and is guided through the exhaust gas heat exchanger 5 to the passenger compartment heat exchanger 6.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The method involves providing fluid circulation and controllable devices for influencing the heat balance of the internal combustion engine (1). The fluid circulation is provided as coolant circuit. The heat is extracted from the internal combustion engine, a transmission oil heat exchanger (2), an engine oil heat exchanger (3), and storage (4) for heated fluid or an exhaust gas heat exchanger (5). The heat is supplied to a passenger compartment heating heat exchanger (6), the internal combustion engine, the transmission oil heat exchanger, the engine oil heat exchanger, and the storage.

Description

Die Erfindung betrifft ein Verfahren zur Regulierung des Wärmehaushalts einer Brennkraftmaschine für ein Fahrzeug mit einem als Kühlmittelkreislauf vorgesehenen Fluidkreislauf und ansteuerbaren Einrichtungen zur Beeinflussung des Wärmehaushalts der Brennkraftmaschine, wobei eine Fluidtemperatur und weitere Betriebsparameter der Brennkraftmaschine erfasst und die ansteuerbaren Einrichtungen in Abhängigkeit der Fluidtemperatur und der weiteren Betriebsparameter der Brennkraftmaschine angesteuert werden.The invention relates to a method for regulating the heat balance of an internal combustion engine for a vehicle with a fluid circuit provided as a coolant circuit and controllable means for influencing the heat balance of the internal combustion engine, wherein a fluid temperature and further operating parameters of the internal combustion engine detected and the controllable devices in dependence of the fluid temperature and the other Operating parameters of the internal combustion engine are controlled.

Ein Verfahren der eingangs genannten Art ist aus der Druckschrift DE 102 28 355 A1 bekannt. Bei dem bekannten Verfahren zur Wärmeregulierung einer Brennkraftmaschine für Fahrzeuge mit einem Fluidkreislauf und ansteuerbaren Einrichtungen zur Beeinflussung des Wärmehaushalts der Brennkraftmaschine werden eine Fluidtemperatur und weitere Betriebsparameter der Brennkraftmaschine erfasst und die ansteuerbaren Einrichtungen in Abhängigkeit der Fluidtemperatur und der weiteren Betriebsparameter der Brennkraftmaschine angesteuert.A method of the type mentioned is from the document DE 102 28 355 A1 known. In the known method for heat regulation of an internal combustion engine for vehicles with a fluid circuit and controllable means for influencing the heat balance of the internal combustion engine, a fluid temperature and other operating parameters of the internal combustion engine are detected and the controllable devices controlled in dependence of the fluid temperature and the further operating parameters of the internal combustion engine.

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art derart auszuführen, dass die Verteilung der im Fahrzeug zur Verfügung stehenden Wärmeenergie aus den Wärmequellen unter Berücksichtigung des Bedarfs einzelner Wärmenutzer optimal verteilt wird, sodass eine Verringerung des Kraftstoffverbrauchs und der Emissionen, insbesondere beim Kaltstart der Brennkraftmaschine, realisierbar ist.Against this background, the invention has the object to perform a method of the type mentioned above in such a way that the distribution of the heat energy available in the vehicle from the heat sources optimally distributed taking into account the needs of individual heat users, so that a reduction in fuel consumption and emissions , Especially during the cold start of the internal combustion engine, is feasible.

Diese Aufgabe wird gelöst mit einem Verfahren gemäß den Merkmalen des Patentanspruchs 1. Die Unteransprüche betreffen besonders zweckmäßige Weiterbildungen der Erfindung.This object is achieved by a method according to the features of patent claim 1. The subclaims relate to particularly expedient developments of the invention.

Erfindungsgemäß ist also ein Verfahren vorgesehen, bei dem einer Brennkraftmaschine, einem Getriebeölwärmeübertrager, einem Motorölwärmeübertrager, einem Speicher für erwärmtes Fluid und/oder einem Abgaswärmeübertrager Wärme entzogen und einem Fahrgastraumheizungswärmeübertrager, der Brennkraftmaschine, dem Getriebeölwärmeübertrager, dem Motorölwärmeübertrager, dem Speicher und/oder dem Abgaswärmeübertrager Wärme zugeführt wird. Hierdurch wird es möglich, dass beispielsweise bei einem Kaltstart der Brennkraftmaschine verschiedene Wärmequellen in Abhängigkeit der spezifischen Fahrzeug- und Aggregatgegebenheiten und/oder Kundenanforderungen, beispielsweise an den Fahrgastraumheizungswärmeübertrager, ausgenutzt werden. Dabei wird insbesondere über die Reihenfolge der Zu- und Abschaltung einzelner Wärmeerzeuger und Wärmenutzer ein Maximum an Komfort und ein Minimum an Verbrauch realisiert.According to the invention, therefore, a method is provided in which an internal combustion engine, a transmission oil heat exchanger, an engine oil heat exchanger, a store for heated fluid and / or an exhaust heat exchanger deprived of heat and a passenger compartment heating heat exchanger, the internal combustion engine, the transmission oil heat exchanger, the engine oil heat exchanger, the memory and / or the exhaust gas heat exchanger is supplied heat. This makes it possible that, for example, during a cold start of the engine different heat sources depending on the specific vehicle and aggregate conditions and / or customer requirements, for example, to the passenger compartment heating heat exchanger, exploited. In this case, a maximum of comfort and a minimum of consumption is realized in particular on the order of activation and deactivation of individual heat generator and heat user.

Vorteilhaft ist es, dass Betriebsparameter des Fahrzeugs erfasst werden. Hierdurch wird es möglich, dass beim Schlüsselkontakt mit der Fahrzeugtür mittels einer Pumpe und weiterer Einrichtungen der Inhalt des Warmwasserspeichers entleert und gezielt zur Brennkraftmaschine geführt wird. So kann die Brennkraftmaschine vor dem Motorstart erwärmt werden, wodurch die Warmlaufphase verkürzt und somit Reibung und Verbrauch gesenkt werden.It is advantageous that operating parameters of the vehicle are detected. This makes it possible that when key contact with the vehicle door by means of a pump and other facilities, the contents of the hot water tank emptied and directed to the engine. Thus, the internal combustion engine can be heated before starting the engine, whereby the warm-up phase is shortened and thus friction and consumption are reduced.

Besonders günstig ist es, dass in Abhängigkeit zumindest eines Betriebsparameters des Fahrzeugs und eines Betriebsparameters der Brennkraftmaschine mittels einer insbesondere elektrisch angetriebenen Pumpe der Speicher entleert und das warme Fluid, insbesondere Wasser, in die Brennkraftmaschine geführt wird. Solche Betriebsparameter sind beispielsweise Außen- und Innentemperatur des Fahrzeugs, Temperatur der Brennkraftmaschine, Uhrzeit, der Zustand der Schließanlage des Fahrzeugs, Fahrgeschwindigkeit, Helligkeit, Geschwindigkeits- und Drehmomentwunsch des Fahrzeugführers und so weiter.It is particularly advantageous that, as a function of at least one operating parameter of the vehicle and an operating parameter of the internal combustion engine, the accumulator is emptied by means of a particularly electrically driven pump and the warm fluid, in particular water, is fed into the internal combustion engine. Such operating parameters are, for example, outside and inside temperature of the vehicle, temperature of the internal combustion engine, time, the state of the locking system of the vehicle, driving speed, brightness, speed and torque request of the driver and so on.

Vorteilhaft ist es auch, dass beim Start der Brennkraftmaschine, sofern der Fahrgastraumheizungswärmeübertrager keine Wärme benötigt, die Pumpen abgeschaltet werden. Hierdurch wird es möglich, dass das warme Fluid in der Brennkraftmaschine verbleibt und an diese Wärme abgibt. Bei Wärmebedarf durch den Fahrgastraumheizungswärmeübertrager ist es günstig, dass die Pumpe zugeschaltet, das Brennkraftmaschinenzuführungsventil und das Abgaswärmeübertragerumgehungsventil geschlossen sowie das Brennkraftmaschinenumgehungsventil geöffnet werden, wobei das Fluid, bei Umgehung der Brennkraftmaschine, durch den Abgaswärmeübertrager zu dem Fahrgastraumheizungswärmeübertrager geführt wird. Die im Kühlkreislauf angeordneten Pumpen werden elektrisch, mechanisch, pneumatisch und/oder hydraulisch angetrieben.It is also advantageous that when starting the internal combustion engine, if the passenger compartment heating heat exchanger does not require heat, the pumps are switched off. This makes it possible that the warm fluid remains in the internal combustion engine and gives off heat to this. When heat demand through the passenger compartment heating heat exchanger, it is convenient that the pump is switched on, the engine supply valve and the Abgaswärmeübertragerumgehungsventil closed and the engine bypass valve are opened, wherein the fluid, bypassing the internal combustion engine, is passed through the exhaust gas heat exchanger to the passenger compartment heater. The pumps arranged in the cooling circuit are driven electrically, mechanically, pneumatically and / or hydraulically.

Vorteilhaft ist es, dass ein Druckausgleichsbehälter im Fluidkreislauf als Speicher für das erwärmte Fluid genutzt wird. Hierdurch wird es möglich, dass die Wärmeenergie unabhängig von dem Betriebszustand der Wärmeerzeuger gespeichert werden kann. Durch die Nutzung des Druckausgleichsbehälters als Speicher ist es möglich, auf einen separaten Wärmespeicher zu verzichten, wodurch Bauraum im Fahrzeug eingespart werden kann. Auch verringert sich die Masse des Fahrzeugs, was zu einer Reduzierung des Kraftstoffverbrauchs und der Emissionen führt. Günstig ist es dabei vor allem, dass der Speicher und/oder der Druckausgleichsbehälter ein Volumen aufweisen, welches dem Volumen der Fluidleitungen in der Brennkraftmaschine entspricht. Hierdurch wird das Volumen des Speichers und somit der Bauraumbedarf im Fahrzeug auf eine notwendige Fluidmenge begrenzt.It is advantageous that a pressure equalization tank in the fluid circuit is used as storage for the heated fluid. This makes it possible that the heat energy can be stored independently of the operating state of the heat generator. By use the surge tank as a memory, it is possible to dispense with a separate heat storage, which space in the vehicle can be saved. Also, the mass of the vehicle decreases, resulting in a reduction in fuel consumption and emissions. It is favorable, in particular, that the reservoir and / or the pressure compensation container have a volume which corresponds to the volume of the fluid lines in the internal combustion engine. As a result, the volume of the memory and thus the space requirement in the vehicle is limited to a necessary amount of fluid.

Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben. Diese zeigt einen als Kühlmittelkreislauf einer Brennkraftmaschine 1 eines Fahrzeugs vorgesehenen Fluidkreislauf. Der Fluidkreislauf hat ansteuerbare Einrichtungen 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 zur Beeinflussung des Wärmehaushalts der Brennkraftmaschine 1, wobei eine Fluidtemperatur und weitere Betriebsparameter der Brennkraftmaschine 1 erfasst werden und die ansteuerbaren Einrichtungen 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 in Abhängigkeit der Fluidtemperatur und der weiteren Betriebsparameter der Brennkraftmaschine 1 angesteuert werden. Dabei wird der Brennkraftmaschine 1, einem Getriebeölwärmeübertrager 2, einem Motorölwärmeübertrager 3, einem Speicher 4 für erwärmtes Fluid und/oder einem Abgaswärmeübertrager 5 Wärme entzogen und einem Fahrgastraumheizungswärmeübertrager 6, der Brennkraftmaschine 1, dem Getriebeölwärmeübertrager 2, dem Motorölwärmeübertrager 3, dem Speicher 4 und/oder dem Abgaswärmeübertrager 5 Wärme zugeführt.The invention allows numerous embodiments. To further clarify its basic principle, one of them is shown in the drawing and will be described below. This shows a designed as a coolant circuit of an internal combustion engine 1 of a vehicle fluid circuit. The fluid circuit has controllable devices 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 for influencing the heat balance of the internal combustion engine 1, wherein a fluid temperature and other operating parameters of the internal combustion engine 1 detected be and the controllable devices 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 depending on the fluid temperature and the other operating parameters of the internal combustion engine 1 are driven. In this case, the internal combustion engine 1, a transmission oil heat exchanger 2, a motor oil heat exchanger 3, a memory 4 for heated fluid and / or an exhaust heat exchanger 5 heat withdrawn and a passenger compartment heating heat exchanger 6, the internal combustion engine 1, the transmission oil heat exchanger 2, the engine oil heat exchanger 3, the memory 4 and / or the exhaust heat exchanger 5 heat supplied.

Das erfindungsgemäße Verfahren ermöglicht es beispielsweise, dass in Abhängigkeit zumindest eines Betriebsparameters des Fahrzeugs und eines Betriebsparameters der Brennkraftmaschine 1 mittels einer Pumpe 7 der Speicher 4 entleert und das warme Fluid in die Brennkraftmaschine 1 geführt wird. Sofern der Fahrgastraumheizungswärmeübertrager 6 keine Wärme benötigt, werden beim Start der Brennkraftmaschine 1 die Pumpen 7, 8 abgeschaltet. Bei einem Wärmebedarf des aktivierten Fahrgastraumheizungswärmeüber-tragers 6 wird die Pumpe 7 zugeschaltet, das Brennkraftmaschinenzuführungsventil 9 und das Abgaswärmeübertragerumgehungsventil 11 geschlossen und das Brennkraftmaschinenumgehungsventil 10 geöffnet, wodurch das Fluid die Brennkraftmaschine 1 umgeht und durch den Abgaswärmeübertrager 5 zu dem Fahrgastraumheizungswärmeübertrager 6 geführt wird.The method according to the invention makes it possible, for example, for the accumulator 4 to be emptied as a function of at least one operating parameter of the vehicle and an operating parameter of the internal combustion engine 1 by means of a pump 7 and for the warm fluid to be conducted into the internal combustion engine 1. If the passenger compartment heating heat exchanger 6 does not require heat, the pumps 7, 8 are switched off at the start of the internal combustion engine 1. With a heat demand of the activated passenger compartment heating heat exchanger 6, the pump 7 is switched on, the engine supply valve 9 and the exhaust gas heat exchanger bypass valve 11 are closed and the engine bypass valve 10 is opened, whereby the fluid bypasses the internal combustion engine 1 and is guided through the exhaust gas heat exchanger 5 to the passenger compartment heat exchanger 6.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
BrennkraftmaschineInternal combustion engine
22
GetriebeölwärmeübertragerTransmission oil heat exchanger
33
MotorölwärmeübertragerEngine oil heat exchanger
44
SpeicherStorage
55
AbgaswärmeübertragerExhaust gas heat exchanger
66
FahrgastraumheizungswärmeübertragerPassenger compartment heating heat exchanger
77
Pumpepump
88th
Pumpepump
99
BrennkraftmaschinenzuführungsventilEngine supply valve
1010
BrennkraftmaschinenumgehungsventilEngine bypass valve
1111
AbgaswärmeübertragerumgehungsventilAbgaswärmeübertragerumgehungsventil
1212
Kühlercooler
1313
WärmespeicherventilHeat storage valve
1414
FahrgastraumheizungswärmeübertragerventilFahrgastraumheizungswärmeübertragerventil
1515
MotorölwärmeübertragerventilMotorölwärmeübertragerventil
1616
GetriebeölwärmeübertragerventilGetriebeölwärmeübertragerventil
1717
Bypassventilbypass valve
1818
Pumpenventilpump valve
1919
VentilValve
2020
VentilValve

Claims (6)

Verfahren zur Regulierung des Wärmehaushalts einer Brennkraftmaschine (1) für ein Fahrzeug mit einem als Kühlmittelkreislauf vorgesehenen Fluidkreislauf und ansteuerbaren Einrichtungen (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20) zur Beeinflussung des Wärmehaushalts der Brennkraftmaschine (1), wobei eine Fluidtemperatur und weitere Betriebsparameter der Brennkraftmaschine (1) erfasst und die ansteuerbaren Einrichtungen (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20) in Abhängigkeit der Fluidtemperatur und der weiteren Betriebsparameter der Brennkraftmaschine (1) angesteuert werden, dadurch gekennzeichnet, dass der Brennkraftmaschine (1), einem Getriebeölwärmeübertrager (2), einem Motorölwärmeübertrager (3), einem Speicher (4) für erwärmtes Fluid und/oder einem Abgaswärmeübertrager (5) Wärme entzogen wird und einem Fahrgastraumheizungswärmeübertrager (6), der Brennkraftmaschine (1), dem Getriebeölwärmeübertrager (2), dem Motorölwärmeübertrager (3), dem Speicher (4) und/oder dem Abgaswärmeübertrager (5) Wärme zugeführt wird.Method for regulating the heat balance of an internal combustion engine (1) for a vehicle with a fluid circuit provided as a coolant circuit and controllable devices (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 ) for influencing the heat balance of the internal combustion engine (1), a fluid temperature and further operating parameters of the internal combustion engine (1) being detected and the controllable devices (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20) depending on the fluid temperature and the further operating parameters of the internal combustion engine (1) are driven, characterized in that the internal combustion engine (1), a transmission oil heat exchanger (2), a motor oil heat exchanger (3), a memory (4) for heated fluid and / or an exhaust gas heat exchanger (5) heat is removed and a passenger compartment heating heat exchanger (6), the internal combustion engine (1), the transmission oil heat exchanger (2), the engine oil heat exchanger (3), Heat is supplied to the reservoir (4) and / or the exhaust gas heat exchanger (5). Verfahren zur Regulierung des Wärmehaushalts einer Brennkraftmaschine (1) nach Anspruch 1, dadurch gekennzeichnet, dass Betriebsparameter des Fahrzeugs erfasst werden.Method for regulating the heat balance of an internal combustion engine (1) according to claim 1, characterized in that operating parameters of the vehicle are detected. Verfahren zur Regulierung des Wärmehaushalts einer Brennkraftmaschine (1) nach Anspruch 2, dadurch gekennzeichnet, dass in Abhängigkeit zumindest eines Betriebsparameters des Fahrzeugs und eines Betriebsparameters der Brennkraftmaschine (1) mittels einer Pumpe (7) der Speicher (4) entleert und das warme Fluid in die Brennkraftmaschine (1) geführt wird.Method for regulating the heat balance of an internal combustion engine (1) according to Claim 2, characterized in that, as a function of at least one operating parameter of the vehicle and an operating parameter of the internal combustion engine (1), the reservoir (4) is emptied by means of a pump (7) and the warm fluid is discharged the internal combustion engine (1) is guided. Verfahren zur Regulierung des Wärmehaushalts einer Brennkraftmaschine (1) nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass beim Start der Brennkraftmaschine (1) die Pumpen (7, 8) abgeschaltet werden, sofern der Fahrgastraumheizungswärmeübertrager (6) keine Wärme benötigt.Method for regulating the heat balance of an internal combustion engine (1) according to at least one of the preceding claims, characterized in that at the start of the internal combustion engine (1) the pumps (7, 8) are switched off, if the passenger compartment heating heat exchanger (6) does not require heat. Verfahren zur Regulierung des Wärmehaushalts einer Brennkraftmaschine (1) nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass bei einem Wärmebedarf des aktivierten Fahrgastraumheizungswärmeübertragers (6) die Pumpe (7) zugeschaltet, das Brennkraftmaschinenzuführungsventil (9) und das Abgaswärmeübertragerumgehungsventil (11) geschlossen sowie das Brennkraftmaschinenumgehungsventil (10) geöffnet werden, wobei das Fluid bei Umgehung der Brennkraftmaschine (1) durch den Abgaswärmeübertrager (5) zu dem Fahrgastraumheizungswärmeübertrager (6) geführt wird.Method for regulating the heat balance of an internal combustion engine (1) according to at least one of the preceding claims, characterized in that the pump (7) is switched on, the engine supply valve (9) and the exhaust gas heat exchanger bypass valve (11) are closed, and the engine bypass valve (10) is opened, the fluid being bypassed by the exhaust gas heat exchanger (1) during exhaust gas bypassing of the internal combustion engine (1). 5) is guided to the passenger compartment heating heat exchanger (6). Verfahren zur Regulierung des Wärmehaushalts einer Brennkraftmaschine (1) nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das erwärmte Fluid in einem Druckausgleichsbehälter im Fluidkreislauf gespeichert wird.Method for regulating the heat balance of an internal combustion engine (1) according to at least one of the preceding claims, characterized in that the heated fluid is stored in a pressure equalizing tank in the fluid circuit.
EP10002337A 2009-04-17 2010-03-06 Method for regulating the heat balance of a combustion engine Withdrawn EP2243937A1 (en)

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