DE102006012847A1 - Internal combustion engine`s cooling circuit heating method for e.g. passenger car, involves automatically connecting retarder with engine using drive for supplying heat energy in warm-up phase of engine based on operating parameters - Google Patents
Internal combustion engine`s cooling circuit heating method for e.g. passenger car, involves automatically connecting retarder with engine using drive for supplying heat energy in warm-up phase of engine based on operating parameters Download PDFInfo
- Publication number
- DE102006012847A1 DE102006012847A1 DE200610012847 DE102006012847A DE102006012847A1 DE 102006012847 A1 DE102006012847 A1 DE 102006012847A1 DE 200610012847 DE200610012847 DE 200610012847 DE 102006012847 A DE102006012847 A DE 102006012847A DE 102006012847 A1 DE102006012847 A1 DE 102006012847A1
- Authority
- DE
- Germany
- Prior art keywords
- retarder
- internal combustion
- combustion engine
- engine
- cooling circuit
- 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- Withdrawn
Links
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
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
-
- 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
- F01P2060/06—Retarder
-
- 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
- F01P2060/18—Heater
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Erwärmung eines Kühlkreislaufs mit einem Retarder nach den Oberbegriffen der unabhängigen Ansprüche.The The invention relates to a method and a device for heating a Cooling circuit with a retarder according to the preambles of the independent claims.
Bei niedrigen Außentemperaturen dauert es relativ lange, bis ein Verbrennungsmotor eines Fahrzeugs das Kühlsystem auf seine Betriebstemperatur erwärmt hat. Bei Dieselmotoren für Personenkraftwagen wird daher sogar eine Zusatzheizung in den Kühlkreislauf integriert, um die Aufheizung zu beschleunigen.at low outside temperatures It takes a relatively long time to get a combustion engine of a vehicle the cooling system heated to its operating temperature Has. For diesel engines for Passenger cars will therefore even an additional heating in the cooling circuit integrated to accelerate the heating.
Die
Offenlegungsschrift
Aus
der Patentschrift
Aufgabe der Erfindung ist, eine Verkürzung der Warmlaufphase eines Verbrennungsmotors zu ermöglichen, die für den Fahrzeugführer möglichst komfortabel ist. Dazu sollen ein verfahren und eine Vorrichtung angegeben werden.task the invention is a shortening of Warm-up phase of an internal combustion engine to allow the most comfortable for the driver is. For this purpose, a method and a device are specified.
Die Aufgabe wird erfindungsgemäß durch die Merkmale der unabhängigen Ansprüche gelöst. Günstige Aus- und Weiterbildungen der Erfindung sind den weiteren Ansprüchen zu entnehmen.The The object is achieved by the Characteristics of the independent claims solved. Favorable price and further developments of the invention are the further claims remove.
Zur Bereitstellung einer Heizleistung in einer Warmlaufphase eines Verbrennungsmotors sieht das erfindungsgemäße Verfahren vor, dass ein Retarder automatisch zugeschaltet wird und eine Abgabe von Heizleistung des Retarders abhängig von Betriebsparametern erfolgt. Immer dann, wenn der Verbrennungsmotor in seiner Warmlaufphase noch über Leistungsreserven verfügt, kann Heizleistung des Retarders dem Kühlkreislauf zugeführt werden. Dabei kann ein Moment des Retarders so eingestellt werden, dass der Verbrennungsmotor das für den Fahrantrieb aufzubringende Moment voll zur Verfügung stellen kann.to Provision of heating power in a warm-up phase of an internal combustion engine sees the method according to the invention that a retarder is automatically switched on and a levy of heat output of the retarder depending on operating parameters he follows. Whenever the internal combustion engine is in its warm-up phase still about power reserves features, Heating power of the retarder can be supplied to the cooling circuit. In this case, a moment of the retarder can be adjusted so that the internal combustion engine for fully provide the drive to be applied torque can.
Vorzugsweise ist der Retarder ein so genannter Wasserretarder, bei dem das Kühlsystem nicht indirekt über Wärmetauscher, sondern das darin zirkulierende Fluid direkt im Retarder erwärmt wird. Bei niedrigen Kühlmitteltemperaturen erfolgt eine automatische Zuschaltung des Retarders, um den Verbrennungsmotor gegen den Retarder anzutreiben. Mit dem Zuschalten erfolgt daher eine schnelle Aufheizung des Verbrennungsmotors und damit eine schnellere Abgasgrenzwerterfüllung. Bei einer Integration einer Getriebeölkühlung kann die Getriebeaufheizung beschleunigt und eine Verlustminimierung bewirkt werden. Beheizte Zusatzeinrichtungen, wie eine Dieselheizung oder eine Beheizung einer Dosiereinrichtung für ein flüssiges Reduktionsmittel zur Verminderung von Stickoxiden im Abgas können schneller abgeschaltet werden. Die Aufheizung des Fahrgastraums, etwa eine Fahrerkabine, ein Innenraum eines Busses oder dergleichen, erfolgt schneller mit einer daraus resultierenden Steigerung des Komforts. Fahrzeugscheiben sind schneller eis- und beschlagfrei mit einer daraus resultierenden Steigerung der passiven Sicherheit des Fahrzeugs.Preferably the retarder is a so-called water retarder, where the cooling system is not indirectly via Heat exchanger, but the circulating fluid is heated directly in the retarder. At low coolant temperatures An automatic connection of the retarder takes place to the internal combustion engine to drive against the retarder. With the connection therefore takes place a quick heating of the internal combustion engine and thus a faster Emission limits fulfillment. When integrating a transmission oil cooling, the transmission heating accelerated and loss minimization is effected. heated Additional equipment, such as diesel heating or heating a Dosing device for a liquid Reducing agents for reducing nitrogen oxides in the exhaust gas can be faster be switched off. The heating of the passenger compartment, about one Cab, an interior of a bus or the like, takes place faster with a resulting increase in comfort. Vehicle windows are faster ice and fog free with a resulting increase in the passive safety of the vehicle.
Bevorzugt wird der Retarder zugeschaltet, sobald eine minimale Fluidtemperatur unterschritten und eine Reserve des Motormoments des Verbrennungsmotors verfügbar ist. Das unterschreiten der minimalen Fluidtemperatur bedeutet, dass der Kühlkreislauf unterhalb seiner Betriebstemperatur arbeitet. Die Stärke der Zuschaltung hängt von der Überschussleistung des Verbrennungsmotors ab. Nur wenn der Verbrennungsmotor überschüssige Leistung abgeben kann, etwa im Teillastbereich, erfolgt die Zuschaltung des Retarders.Prefers the retarder is switched on as soon as a minimum fluid temperature fell below and a reserve of the engine torque of the internal combustion engine available is. Falling below the minimum fluid temperature means that the cooling circuit works below its operating temperature. The strength of Connection hangs from the surplus power of the internal combustion engine. Only if the internal combustion engine excess power can deliver, such as in the partial load range, the connection of the Retarder.
Zweckmäßigerweise wird bei einer verfügbaren Reserve das Motormoment um ein Moment des Retarders erhöht. Die vom Retarder abzugebende Leistung kann vorzugsweise abhängig von der verfügbaren Reserve geregelt werden.Conveniently, will be available at one Reserve the engine torque increased by a moment of the retarder. The output from the retarder can preferably be dependent on the available Reserve to be regulated.
In einer sinnvollen Weiterbildung unterbleibt eine Zuschaltung des Retarders, wenn ein Schaltvorgang des Getriebes vorgenommen wird. Auf diese Weise wird zuverlässig vermieden, dass dem Antrieb notwendige Antriebsleistung entzogen wird.In A meaningful training is omitted a connection of the Retarders when a gear shift operation is made. That way it will be reliable avoided that deprived of the drive power necessary becomes.
Zweckmäßigerweise kann eine Zuschaltung des Retarders unterbleiben, falls die Kühlmitteltemperatur über einer minimalen Kühlmitteltemperatur liegt. Ist diese minimale Kühlmitteltemperatur erreicht oder überschritten, wird eine zusätzliche Einspeisung von Heizleistung in den Kühlkreislauf nicht mehr benötigt.Conveniently, a connection of the retarder can be omitted if the Kühlmitteltem temperature is above a minimum coolant temperature. If this minimum coolant temperature is reached or exceeded, an additional feed of heating power into the cooling circuit is no longer needed.
Die erfindungsgemäße Vorrichtung zur Erwärmung eines Kühlkreislaufs eines Verbrennungsmotors, der durch ein durch den Kühlkreislauf fließendes Fluid temperierbar ist, weist einen mit dem Verbrennungsmotor antriebsverbundenen Retarder auf, der mit dem Verbrennungsmotor in einer gemeinsamen Kühlmittelleitung angeordnet und vom gleichen Fluid durchströmbar ist. Der Retarder kann bevorzugt in einer Warmlaufphase des Verbrennungsmotors automatisch zuschaltbar sein.The inventive device for warming a cooling circuit an internal combustion engine passing through a through the cooling circuit flowing Fluid is temperature controlled, has a drive connected to the internal combustion engine Retarder on, with the internal combustion engine in a common Coolant line arranged and can be flowed through by the same fluid. The retarder can preferably in a warm-up phase of the internal combustion engine automatically be switchable.
Zweckmäßigerweise kann der Retarder bezogen auf eine Strömungsrichtung des Fluids stromab des Verbrennungsmotors angeordnet sein. Auf diese weise kann Heizleistung des Retarders wahlweise dem Verbrennungsmotor unter Umgehung des Kühlers zugeführt werden oder beim Bremsen mit dem Retarder erzeugte Heizleistung im Warmbetrieb über den Kühler abgegeben werden. Jedoch muss der Retarder nicht unbedingt in Reihe mit dem Verbrennungsmotor geschaltet sein, sondern es ist gegebenenfalls auch eine Parallelschaltung von Retarder und Verbrennungsmotor möglich.Conveniently, For example, the retarder may be downstream with respect to a flow direction of the fluid be arranged of the internal combustion engine. In this way can heat output the retarder optionally be supplied to the internal combustion engine, bypassing the radiator or when braking with the retarder generated in hot operation on the heating power Cooler delivered become. However, the retarder does not necessarily have to be in line with the Internal combustion engine to be switched, but it is if necessary also a parallel connection of retarder and internal combustion engine possible.
Ist an den Kühlkreislauf eine Getriebeölkühlung angekoppelt, kann eine schnelle Getriebeaufheizung erfolgen.is to the cooling circuit coupled to a transmission oil cooling, can be done a fast transmission heating.
Weitere Vorteile und Einzelheiten der Erfindung werden im Folgenden anhand eines in der Zeichnung beschriebenen bevorzugten Ausführungsbeispiels näher erläutert, ohne auf dieses Ausführungsbeispiel beschränkt zu sein.Further Advantages and details of the invention are described below a preferred embodiment described in the drawing explained in more detail, without to this embodiment limited to be.
Dabei zeigen:there demonstrate:
Ein
bevorzugter Kühlkreislauf
Stromab
des Retarders ist in einem Nebenzweig
Stromauf
des Verbrennungsmotors
Die
Pumpe
Die
Leitung
Das
Fluid strömt
im Betrieb permanent durch den Kühlkreislauf
Das
erfindungsgemäße Verfahren
zur Erwärmung
eines Kühlkreislaufs
Nach
dem Start
Ist
die minimal zulässige
Temperatur unterschritten, folgt in Schritt
Die Zuschaltung der Funktion Retarderheizung erfolgt beim Warmlauf demnach automatisch. Unter bestimmten Bedingungen wird die Funktion Retarderheizung deaktiviert.The Connection of the function Retarderheizung takes place during warm-up automatically. Under certain conditions, the function becomes retarder heating disabled.
Der
Betrieb des Retarders
Ein
Moment Mret des Retarders
Die
Routine gemäß
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610012847 DE102006012847A1 (en) | 2006-03-21 | 2006-03-21 | Internal combustion engine`s cooling circuit heating method for e.g. passenger car, involves automatically connecting retarder with engine using drive for supplying heat energy in warm-up phase of engine based on operating parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610012847 DE102006012847A1 (en) | 2006-03-21 | 2006-03-21 | Internal combustion engine`s cooling circuit heating method for e.g. passenger car, involves automatically connecting retarder with engine using drive for supplying heat energy in warm-up phase of engine based on operating parameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102006012847A1 true DE102006012847A1 (en) | 2007-09-27 |
Family
ID=38438223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200610012847 Withdrawn DE102006012847A1 (en) | 2006-03-21 | 2006-03-21 | Internal combustion engine`s cooling circuit heating method for e.g. passenger car, involves automatically connecting retarder with engine using drive for supplying heat energy in warm-up phase of engine based on operating parameters |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102006012847A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009016817A1 (en) * | 2009-04-09 | 2010-10-14 | Voith Patent Gmbh | Method for setting an exact level of the cooling medium in a vehicle cooling circuit |
| WO2010147517A1 (en) * | 2009-06-18 | 2010-12-23 | Volvo Lastavagnar Ab | Cooling circuit for a vehicle and vehicle comprising a cooling circuit |
| DE102009052151B3 (en) * | 2009-11-06 | 2011-05-05 | Mtu Friedrichshafen Gmbh | Cooling system of an internal combustion engine |
| US8663064B2 (en) | 2009-05-25 | 2014-03-04 | Zf Friedrichshafen Ag | Method for operating a drive train |
| DE102013013452A1 (en) | 2013-08-10 | 2014-03-06 | Daimler Ag | Method for activating e.g. hydrodynamic retarder for heating internal combustion engine of vehicle to maintain engine operating temperature, involves activating retarder if torque is requested and temperature falls below minimum temperature |
| WO2015041584A1 (en) * | 2013-09-19 | 2015-03-26 | Scania Cv Ab | Arrangement to prevent cooling of an exhaust gas treatment component in a vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2541227A (en) * | 1949-04-12 | 1951-02-13 | Eaton Mfg Co | Engine heat booster brake |
| DE2130209A1 (en) * | 1971-06-18 | 1972-12-21 | Licentia Gmbh | Method and device for shortening the warm-up time of an internal combustion engine |
| DE3301560C1 (en) * | 1983-01-19 | 1984-04-05 | Daimler-Benz Ag, 7000 Stuttgart | Control of the heating power of a hydrodynamic brake |
| DE19934621A1 (en) * | 1999-07-23 | 2001-01-25 | Zahnradfabrik Friedrichshafen | Circuit system for motor vehicle retarder has connection between closed working circuit and gearbox sump for partial branching of gearbox oil into brake-activated retarder |
| DE4392959B4 (en) * | 1992-06-22 | 2005-06-16 | Scania Cv Ab | Method and device for accelerating the heating of the vehicle engine in a vehicle equipped with a retarder |
| EP1671834A1 (en) * | 2004-01-29 | 2006-06-21 | Astra Veicoli Industriali S.p.A. | Method and device for managing the vehicle warm-up phase in a cold start situation by controlling a hydraulic retarder |
| DE102005013075A1 (en) * | 2005-03-18 | 2006-09-21 | Voith Turbo Gmbh & Co. Kg | Cooling circuit with a hydrodynamic brake |
-
2006
- 2006-03-21 DE DE200610012847 patent/DE102006012847A1/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2541227A (en) * | 1949-04-12 | 1951-02-13 | Eaton Mfg Co | Engine heat booster brake |
| DE2130209A1 (en) * | 1971-06-18 | 1972-12-21 | Licentia Gmbh | Method and device for shortening the warm-up time of an internal combustion engine |
| DE3301560C1 (en) * | 1983-01-19 | 1984-04-05 | Daimler-Benz Ag, 7000 Stuttgart | Control of the heating power of a hydrodynamic brake |
| DE4392959B4 (en) * | 1992-06-22 | 2005-06-16 | Scania Cv Ab | Method and device for accelerating the heating of the vehicle engine in a vehicle equipped with a retarder |
| DE19934621A1 (en) * | 1999-07-23 | 2001-01-25 | Zahnradfabrik Friedrichshafen | Circuit system for motor vehicle retarder has connection between closed working circuit and gearbox sump for partial branching of gearbox oil into brake-activated retarder |
| EP1671834A1 (en) * | 2004-01-29 | 2006-06-21 | Astra Veicoli Industriali S.p.A. | Method and device for managing the vehicle warm-up phase in a cold start situation by controlling a hydraulic retarder |
| DE102005013075A1 (en) * | 2005-03-18 | 2006-09-21 | Voith Turbo Gmbh & Co. Kg | Cooling circuit with a hydrodynamic brake |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009016817A1 (en) * | 2009-04-09 | 2010-10-14 | Voith Patent Gmbh | Method for setting an exact level of the cooling medium in a vehicle cooling circuit |
| DE102009016817B4 (en) * | 2009-04-09 | 2010-11-25 | Voith Patent Gmbh | Method for setting an exact level of the cooling medium in a vehicle cooling circuit |
| US8663064B2 (en) | 2009-05-25 | 2014-03-04 | Zf Friedrichshafen Ag | Method for operating a drive train |
| WO2010147517A1 (en) * | 2009-06-18 | 2010-12-23 | Volvo Lastavagnar Ab | Cooling circuit for a vehicle and vehicle comprising a cooling circuit |
| DE102009052151B3 (en) * | 2009-11-06 | 2011-05-05 | Mtu Friedrichshafen Gmbh | Cooling system of an internal combustion engine |
| WO2011054517A2 (en) | 2009-11-06 | 2011-05-12 | Mtu Friedrichshafen Gmbh | Cooling system of an internal combustion engine |
| US9803535B2 (en) | 2009-11-06 | 2017-10-31 | Mtu Friedrichshafen Gmbh | Cooling system of an internal combustion engine |
| DE102013013452A1 (en) | 2013-08-10 | 2014-03-06 | Daimler Ag | Method for activating e.g. hydrodynamic retarder for heating internal combustion engine of vehicle to maintain engine operating temperature, involves activating retarder if torque is requested and temperature falls below minimum temperature |
| WO2015041584A1 (en) * | 2013-09-19 | 2015-03-26 | Scania Cv Ab | Arrangement to prevent cooling of an exhaust gas treatment component in a vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
| 8120 | Willingness to grant licenses paragraph 23 | ||
| R120 | Application withdrawn or ip right abandoned |
Effective date: 20120914 |