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EP2443328B1 - Circuit de refroidissement pour un véhicule et véhicule comprenant un circuit de refroidissement - Google Patents

Circuit de refroidissement pour un véhicule et véhicule comprenant un circuit de refroidissement Download PDF

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Publication number
EP2443328B1
EP2443328B1 EP09846259.1A EP09846259A EP2443328B1 EP 2443328 B1 EP2443328 B1 EP 2443328B1 EP 09846259 A EP09846259 A EP 09846259A EP 2443328 B1 EP2443328 B1 EP 2443328B1
Authority
EP
European Patent Office
Prior art keywords
coolant
cooler
combustion engine
cooling circuit
retarder
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.)
Active
Application number
EP09846259.1A
Other languages
German (de)
English (en)
Other versions
EP2443328A4 (fr
EP2443328A1 (fr
Inventor
Peter Nilsson
Erik Dahl
Katarina Jemt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Truck Corp
Original Assignee
Volvo Lastvagnar AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Volvo Lastvagnar AB filed Critical Volvo Lastvagnar AB
Publication of EP2443328A1 publication Critical patent/EP2443328A1/fr
Publication of EP2443328A4 publication Critical patent/EP2443328A4/fr
Application granted granted Critical
Publication of EP2443328B1 publication Critical patent/EP2443328B1/fr
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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
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • 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

Definitions

  • the invention relates to a cooling circuit for a vehicle, particularly a commercial vehicle, wherein the cooling circuit comprises a combustion engine, a retarder cooler for cooling a retarder, an EGR cooler for cooling an exhaust gas of the combustion engine, and a coolant cooler which is coupled to the combustion engine for cooling the combustion engine by means of a coolant.
  • the invention is further related to a vehicle, such as a truck, comprising a cooling circuit.
  • WO 2004/085807 A1 discloses a cooling circuit comprising a combustion engine with a coolant cooler, a retarder cooler and an EGR cooler.
  • the retarder cooler and the EGR cooler are equipped with separate cooling circuits.
  • Each cooling circuit comprises a coolant cooler, a coolant pump and a thermostat.
  • the separate cooling circuits can be temporarily connected by a valve. By temporarily connecting the two separate cooling circuits, additional cooling capacity can be provided for the retarder cooler.
  • the valve is closed and the cooling circuits of the EGR cooler and the retarder cooler operate separately.
  • the coolant coolers of the separate cooling circuits can be connected in series while the EGR cooler is bypassed.
  • the cooling capacity in the separate cooling circuits can be varied by bypass lines controlled by the separate thermostats in the cooling circuits.
  • US2008/0257317 A1 discloses a cooling system of an engine which is cooled with a coolant.
  • a coolant collecting rail is mounted on top of the cylinder head of the engine.
  • An EGR cooler is mounted to the coolant collecting rail. The EGR cooler receives a part of the engine coolant for cooling the EGR gas. Another part of the engine coolant is collected in the coolant collecting rail which also receives the coolant from the EGR cooler.
  • a retarder cooler can be arranged in the return line between the coolant collecting rail and the coolant cooler.
  • DE102006048714 A1 discloses a cooling circuit for a heavy goods vehicle.
  • coolant from the oil cooler may flow to the EGR, then to the coolant collector, then to the retarder, and thereafter to the cooler.
  • the coolant from the cylinder heads and cylinder liners flows to the cooler via the cooler collector, or via the cooler collector and the retarder.
  • the objects are achieved by the features of the independent claims.
  • the other claims and the description disclose advantageous embodiments of the invention.
  • the object is achieved by means of a cooling circuit according to claim 1.
  • the wording "permanently in series" means that the retarder cooler and the EGR cooler are arranged in a joint cooling circuit at least during operation. The coolant flows through both the retarder cooler and subsequently the EGR cooler during operation.
  • the retarder cooler and the EGR cooler are integral parts of the cooling circuit of the combustion engine. It is not necessary to provide separate coolant coolers or coolant pumps for the retarder cooler and the EGR cooler or valves for connecting a cooling circuit containing the retarder cooler and a cooling circuit containing the EGR cooler.
  • the retarder cooler and the EGR cooler can be high-efficient coolers which may generate a significant heat load to the coolant, while each cooler receives flow of the combustion engine coolant as cooling medium using virtually the same pipes.
  • the number of pipes for supplying coolant to the retarder cooler and the EGR cooler can be reduced.
  • the two coolers can favourably be full flow coolers, receiving the full flow of the coolant evacuated of the combustion engine so that all the coolant from the combustion engine can be fed through the EGR cooler, or can optionally receive only a partial flow of the coolant if required.
  • the EGR cooler is configured to cool an exhaust gas from the combustion engine via the coolant from the combustion engine, favourably, the EGR cooler has a high cooling efficiency.
  • the exhaust gas can be cooled in an efficient way.
  • the EGR cooler is configured for conveying the complete coolant flow evacuated from the combustion engine. Whereas in prior art typically an EGR cooler receives only a small amount of the coolant flow, typically around 10% of the coolant flow evacuated from the combustion engine, the full flow EGR cooler can establish an efficient cooling of the recirculated exhaust. Expediently, the EGR cooler provides an efficient cooling with a space efficient and compact piping.
  • a space efficient packaging of the cooling circuit can be achieved because the combustion engine comprises a coolant output port positioned at a distance from the coolant cooler, wherein the coolant output port is connected to an inlet of the retarder cooler, and wherein the retarder cooler and the EGR cooler are positioned between the coolant output port and the coolant cooler in such a way that they can provide said portion of the fluid path of the coolant from the combustion engine back to the coolant cooler.
  • the combustion engine comprises a coolant input port positioned at a first end of the combustion engine, wherein the coolant output port is positioned at a second end of the combustion engine opposite the first end.
  • the first end can be the front end of the combustion engine and the second end can be the rear end of the combustion engine.
  • the thermostat of the engine can be arranged at the first end in a distance of the retarder at the rear of the combustion engine.
  • a packaging-friendly arrangement of the combustion engine arranged along the longitudinal extension of the vehicle can be provided. Voluminous pipes can be avoided particularly if the retarder cooler is arranged at the second end of the combustion engine.
  • said EGR cooler can be positioned so that said portion of the fluid path of the coolant from the combustion engine back to the coolant cooler can be directed from the second end of the combustion engine towards the first end of the combustion engine. Space consuming additional pipes can be avoided as the EGR cooler is part of the return line of the coolant.
  • the coolant cooler is a joint cooler for the retarder cooler and the EGR cooler.
  • the coolant can be used to cool highly thermally loaded media, such as the retarder fluid, e.g. retarder oil, and the exhaust gas in the EGR system.
  • a major heat load can be introduced into the coolant by the EGR cooler and the retarder cooler as each generates a high heat load at different operational modes of the combustion engine. For instance, in an operational mode of the combustion engine where exhaust gas is recirculated from the exhaust gas output to the air inlet of the combustion engine, i.e. in a medium or high load mode of the combustion engine, the retarder is not in use while in an operational mode where the retarder is active, i.e.
  • the retarder cooler and the EGR cooler can be arranged in series without need to increase the coolant flow or the diameter of the fluid path compared to a situation where only one of such a cooler were arranged in the coolant fluid path.
  • the return path of the coolant may for instance lead from the rear part of the combustion engine to the retarder cooler and back to the EGR cooler and from EGR cooler to a thermostat house at the front part of the engine.
  • the number of components and large voluminous pipes can be reduced although coolers receiving the full coolant flow can be used.
  • only one thermostat house position, only one upper radiator hose and only one connection from the thermostat to a coolant pump is necessary in the cooling circuit.
  • the coolant may be fed from the radiator through the combustion engine block to the retarder.
  • the coolant may further be fed from the EGR cooler to the common thermostat house providing a bypass connection.
  • the EGR cooler can be configured to provide a portion of the fluid path of the coolant in a return line from the combustion engine back to the coolant cooler.
  • the routing of the return line in the vicinity of the EGR cooler can be minimized and a compact arrangement can be achieved.
  • the EGR cooler can be configured to provide a substantially straight portion of the fluid path of the coolant from the combustion engine back to the coolant cooler.
  • a compact routing of the return line in the vicinity of the EGR cooler can be improved.
  • the coolant cooler can be configured to cool the coolant via an air flow.
  • a standard and efficient coolant cooler component can be employed in the cooling circuit.
  • the coolant cooler can be formed by a radiator.
  • a standard and efficient coolant cooler component can be employed in the cooling circuit.
  • the coolant cooler can be positioned at a first end of the combustion engine. Particularly, a short connection from the first end of the combustion engine to the coolant cooler can be achieved.
  • the combustion engine can be a diesel engine.
  • a very efficient cooling and space saving packaging can be achieved thus enabling the vehicle for larger cooler components required for advanced emission regulations for diesel engines.
  • the EGR cooler can be arranged at an upper part of the combustion engine, thus providing a space efficient arrangement of the EGR cooler and leaving free space on the engine housing for other components or installations on the combustion engine.
  • a vehicle according to claim 11 is proposed.
  • the vehicle can be a particularly a light, medium or heavy duty vehicle, particularly a truck.
  • the vehicle provides improved cooling efficiency for an EGR cooler and a retarder cooler as well as a space efficient packaging by using fewer components compared to the prior art. Using fewer components fro the same cooling capacity saves construction space and allows the installation of larger cooler components providing improved emission control of a combustion engine.
  • Fig. 1a shows a first perspective view of an embodiment of a cooling circuit 90 comprising a combustion engine 10, an EGR cooler 40 and a retarder cooler 30.
  • Exhaust gas of the combustion engine 10 can be fed into an exhaust gas recirculation system (EGR system) wherein the EGR cooler 40 cools the exhaust gas discharged from the combustion engine 10.
  • the combustion engine 10 is coupled to a retarder 32 for braking the vehicle, wherein the retarder is cooled by the retarder cooler 30.
  • the EGR cooler 40 is connected to the retarder cooler 30 and arranged in series with respect to the coolant flow.
  • Fig. 1b depicts a view of the opposite side of the embodiment of the cooling circuit 90.
  • the combustion engine 10 is coolant cooled wherein the coolant is cooled in a coolant cooler 20 which may be part of a cooler package 26.
  • the coolant e.g. water
  • the coolant is conveyed through a coolant input port 45 to the combustion engine 10 at a first end 14 of the combustion engine 10.
  • the coolant is evacuated at a second end 16 of the combustion engine 10 through a coolant output port 46.
  • the first end 14 of the combustion engine 10 may be arranged by way of example close to the coolant cooler 20 of the cooler package 26, the first end 14 constituting e.g. a front end of the combustion engine 10.
  • the second end 16 opposite to the first end 14 may be arranged at a distance from the coolant cooler 20 and constitutes e.g. a rear end of the combustion engine 10.
  • the coolant cooler 20 comprises a radiator or may be formed as a radiator.
  • Air is sucked through the coolant cooler 20 by way of a fan 28 which is arranged at the first end 14, e.g. a front side of the combustion engine 10.
  • a transmission 22 is followed by a gear box 24.
  • the retarder 32 is mounted to the gear box 24 arranged at the second end 16, e.g. the rear side, of the combustion engine 10.
  • exhaust gas is fed from an exhaust output port 56 through the EGR cooler 40 to an EGR valve 58 in which the exhaust gas is mixed with fresh air fed in through an air pipe 70 (shown partially interrupted) and fed to an input manifold in the middle portion 12 of the combustion engine 10.
  • the EGR cooler 40 is arranged in an upper portion 12u of the combustion engine 10.
  • the combustion engine coolant is cooled in the coolant cooler 20 and fed to the combustion engine 10 through a pipe 50 between the coolant cooler 20 and the coolant input port 45 of the combustion engine 10.
  • a coolant fluid path 60 constituting a coolant return line between the coolant output port 46 and the coolant cooler 20 comprises in subsequent order a pipe 42a extending from the coolant output port 46 to the retarder cooler 30, the retarder cooler 30, a pipe 42b extending from the retarder cooler 30 to the EGR cooler 40, the EGR cooler 40, a pipe 44 extending from the EGR cooler 40 to a thermostat house (hidden in the combustion engine casting, not to be seen the drawing), the thermostat house and a pipe 48 from the thermostat house to the coolant cooler 20.
  • the coolant can flow through a bypass connection 18 directly to the coolant input port 45 of the combustion engine 10.
  • the retarder cooler 30 and the EGR cooler 40 form a part of the coolant fluid path 60.
  • the EGR cooler 40 as well as the retarder cooler 30 is a full flow cooler receiving 100% of the coolant flow evacuated of the combustion engine 10.
  • the number of pipes for the coolant flow can be reduced as the EGR cooler 40 is arranged along the combustion engine block of the combustion engine 10 as a substantially straight portion of the fluid path 60 of the coolant, while the coolant from the retarder 32 and retarder cooler 30 being fed through the EGR cooler 40 towards the first end 14 of the combustion engine 10.
  • the coolant which is cooled in the coolant cooler 20 circulates in subsequent order through the combustion engine 10, the retarder cooler 30 and the EGR cooler 40 and the coolant cooler 20.
  • the retarder cooler 30 and the EGR cooler 40 are arranged in series in the coolant fluid path 60, only one of the coolers 30, 40 is active at a time, so that a substantial heat load is introduced to the coolant only by one of the two coolers 30, 40 at a time.
  • the vehicle is decelerating. In such an operational mode, exhaust is not recirculated.
  • the combustion engine 10 is operated at a higher load range in which the retarder 32 is inactive.
  • Each cooler 30 or 40 can introduce a high thermal load into the coolant without deteriorating the cooling efficiency of the other cooler 40 or 30 as the thermal load of each cooler 30, 40 is introduced in different operation modes of the combustion engine 10.
  • the exhaust gas cooled in the EGR cooler 40 is flowing through a pipe 52 between the exhaust output port 56, through the EGR cooler 40 where it is cooled by the coolant and through a pipe 54 to the EGR valve 58.
  • a bypass valve for the exhaust gas for bypassing the EGR cooler 40 may be provided but is not shown in detail.
  • a preferred vehicle 100 comprising a combustion engine with a cooling circuit 90 conveying a coolant according to Figs. 1a , 1b .
  • the vehicle 100 is preferably a light, medium or heavy duty vehicle such as a truck.
  • the invention allows for a very effective packaging by avoiding, for instance, big pipes along the combustion engine 10 as the EGR cooler 40 ( Fig. 1a , 1b ) is a part of the return path of the coolant from the combustion engine 10 to the vehicle radiator.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (11)

  1. Circuit de refroidissement (90) pour un véhicule (100), en particulier un véhicule utilitaire, dans lequel le circuit de refroidissement (90) comprend un moteur à combustion (10), un refroidisseur de ralentisseur (30) pour refroidir un ralentisseur (32), un refroidisseur d'EGR (40) pour refroidir un gaz d'échappement du moteur à combustion (10), et un refroidisseur de liquide de refroidissement (20) qui est couplé au moteur à combustion (10) pour refroidir le moteur à combustion (10) au moyen d'un liquide de refroidissement, où le refroidisseur d'EGR (40) est configuré pour refroidir le gaz d'échappement provenant du moteur à combustion (10) par l'intermédiaire du liquide de refroidissement provenant du moteur à combustion (10), le refroidisseur de ralentisseur (30) est agencé de façon permanente en série avec le refroidisseur d'EGR (40) dans un trajet de fluide (60) du liquide de refroidissement formant une ligne de retour pour le liquide de refroidissement depuis le moteur à combustion (10) jusqu'au refroidisseur de liquide de refroidissement (20), caractérisé en ce que
    - le refroidisseur d'EGR (40) est configuré pour acheminer le flux total de liquide de refroidissement évacué du moteur à combustion ;
    - le moteur à combustion (10) comprend un orifice d'entrée de liquide de refroidissement (45) positionné au niveau d'une première extrémité (14) du moteur à combustion (10) et un orifice de sortie de liquide de refroidissement (46) étant positionné au niveau d'une deuxième extrémité (16) du moteur à combustion (10) opposée à la première extrémité (14) ; et
    - l'orifice de sortie de liquide de refroidissement (46) étant positionné à une distance du refroidisseur de liquide de refroidissement (20) et l'orifice de sortie de liquide de refroidissement (46) étant relié à une entrée du refroidisseur de ralentisseur (30).
  2. Circuit de refroidissement selon la revendication 1, caractérisé en ce que le refroidisseur de liquide de refroidissement (20) est un refroidisseur de liquide de refroidissement commun pour le refroidisseur de ralentisseur (30) et le refroidisseur d'EGR (40).
  3. Circuit de refroidissement selon la revendication 1 ou 2, caractérisé en ce que le refroidisseur d'EGR (40) est configuré pour fournir une partie du trajet de fluide (60) du liquide de refroidissement dans la ligne de retour depuis le moteur à combustion (10) jusqu'au refroidisseur de liquide de refroidissement (20).
  4. Circuit de refroidissement selon l'une des revendications précédentes, caractérisé en ce que le refroidisseur d'EGR (40) est configuré pour fournir une partie sensiblement droite du trajet de fluide (60) du liquide de refroidissement depuis le moteur à combustion (10) jusqu'au refroidisseur de liquide de refroidissement (20).
  5. Circuit de refroidissement selon l'une des revendications précédentes, caractérisé en ce que le refroidisseur de liquide de refroidissement (20) est configuré pour refroidir le liquide de refroidissement par l'intermédiaire d'un flux d'air.
  6. Circuit de refroidissement selon l'une des revendications précédentes, caractérisé en ce que le refroidisseur de liquide de refroidissement (20) est formé par un radiateur.
  7. Circuit de refroidissement selon l'une des revendications précédentes, caractérisé en ce que le refroidisseur de liquide de refroidissement (20) est positionné au niveau de la première extrémité (14) du moteur à combustion (10).
  8. Circuit de refroidissement selon la revendication 3 et l'une des revendications précédentes, caractérisé en ce que ledit refroidisseur d'EGR (40) est positionné de sorte que ladite partie du trajet de fluide (60) du liquide de refroidissement depuis le moteur à combustion (10) revenant au refroidisseur de liquide de refroidissement (20) soit dirigée de la deuxième extrémité (16) du moteur à combustion (10) vers la première extrémité (14) du moteur à combustion (10).
  9. Circuit de refroidissement selon l'une des revendications précédentes, caractérisé en ce que le moteur à combustion (10) est un moteur à combustion diesel.
  10. Circuit de refroidissement selon l'une des revendications précédentes, caractérisé en ce que le refroidisseur d'EGR (40) est agencé au niveau d'une partie supérieure (15) du moteur à combustion (10).
  11. Véhicule (100) comprenant un circuit de refroidissement (90) selon l'une des revendications précédentes.
EP09846259.1A 2009-06-18 2009-06-18 Circuit de refroidissement pour un véhicule et véhicule comprenant un circuit de refroidissement Active EP2443328B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2009/000310 WO2010147517A1 (fr) 2009-06-18 2009-06-18 Circuit de refroidissement pour un véhicule et véhicule comprenant un circuit de refroidissement

Publications (3)

Publication Number Publication Date
EP2443328A1 EP2443328A1 (fr) 2012-04-25
EP2443328A4 EP2443328A4 (fr) 2013-12-04
EP2443328B1 true EP2443328B1 (fr) 2015-08-12

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EP09846259.1A Active EP2443328B1 (fr) 2009-06-18 2009-06-18 Circuit de refroidissement pour un véhicule et véhicule comprenant un circuit de refroidissement

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Country Link
EP (1) EP2443328B1 (fr)
CN (1) CN102482980B (fr)
WO (1) WO2010147517A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE537465C2 (sv) * 2013-09-19 2015-05-12 Scania Cv Ab Arrangemang för att motverka nedkylning av en avgasbehandlande komponent i ett fordon
US10196960B2 (en) * 2017-03-09 2019-02-05 GM Global Technology Operations LLC Cooling system having variable coolant flow paths for exhaust gas recirculation system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE523073C2 (sv) * 2001-06-28 2004-03-23 Valeo Engine Cooling Ab Sätt och anordning för kylning av laddluft och hydraulolja
SE0300923L (sv) * 2003-03-28 2004-02-24 Scania Cv Abp Kylanordning och sätt att kyla en retarder
DE102005031300B4 (de) * 2005-07-05 2021-05-12 Daimler Ag Brennkraftmaschine mit Kühlsystem und Abgasrückführsystem
DE102006010247B4 (de) * 2006-03-02 2019-12-19 Man Truck & Bus Se Antriebseinheit mit Wärmerückgewinnung
DE102006012847A1 (de) * 2006-03-21 2007-09-27 Daimlerchrysler Ag Verfahren und Vorrichtung zur Erwärmung eines Kühlkreislaufs mit einem Retarder
US7347168B2 (en) * 2006-05-15 2008-03-25 Freightliner Llc Predictive auxiliary load management (PALM) control apparatus and method
DE102006048714A1 (de) * 2006-10-14 2008-04-17 Daimler Ag Kühlkreislauf

Also Published As

Publication number Publication date
EP2443328A4 (fr) 2013-12-04
EP2443328A1 (fr) 2012-04-25
CN102482980A (zh) 2012-05-30
WO2010147517A8 (fr) 2012-02-16
WO2010147517A1 (fr) 2010-12-23
CN102482980B (zh) 2014-10-15

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