DE10016694C1 - Heating system for motor vehicle has several spatially separate heating modules, each with its own device for generating heat, common controller for controlling heating power of each module - Google Patents

Heating system for motor vehicle has several spatially separate heating modules, each with its own device for generating heat, common controller for controlling heating power of each module

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Publication number
DE10016694C1
DE10016694C1 DE10016694A DE10016694A DE10016694C1 DE 10016694 C1 DE10016694 C1 DE 10016694C1 DE 10016694 A DE10016694 A DE 10016694A DE 10016694 A DE10016694 A DE 10016694A DE 10016694 C1 DE10016694 C1 DE 10016694C1
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DE
Germany
Prior art keywords
heating
heating system
heat
modules
motor vehicle
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.)
Expired - Lifetime
Application number
DE10016694A
Other languages
German (de)
Inventor
Hubertus Boese
Peter Hartwig
Klaus Hemmer
Ingrid Lanzl
Joerg Wandler
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.)
Webasto SE
Original Assignee
Webasto Thermosysteme GmbH
Webasto Thermosysteme International GmbH
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 Webasto Thermosysteme GmbH, Webasto Thermosysteme International GmbH filed Critical Webasto Thermosysteme GmbH
Priority to DE10016694A priority Critical patent/DE10016694C1/en
Priority to PCT/EP2001/003762 priority patent/WO2001074613A1/en
Application granted granted Critical
Publication of DE10016694C1 publication Critical patent/DE10016694C1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • B60H1/2206—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners controlling the operation of burners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The system has several spatially separate heating modules, each with its own device for generating heat, and a common controller for controlling the heating power of each heating module. At least one of the heating modules is formed by an electric heater and/or at least one by an internal combustion engine that burns fuel or gas to generate hot combustion gases to supply at least one heat exchanger.

Description

Die vorliegende Erfindung betrifft ein Heizsystem für ein Kraftfahrzeug.The present invention relates to a heating system for a motor vehicle.

Ein Problem bei üblichen Kraftfahrzeug-Heizsystemen, bei welchen Warmluft mittels Wärmeaustausch mit dem Motorkühlwasser erzeugt wird, besteht darin, dass nach dem Starten des Motors ein gewisser Zeitraum erforderlich ist, bis sich das Kühlwasser hinreichend erwärmt hat, um eine Heizungsfunktion zu, realisieren. Ferner kann insbesondere bei verbrauchsoptimierten Motoren selbst bei warmgelaufenem Motor der Fall eintreten, dass die vom Motor an das Kühlwasser abgegebene Wärme nicht ausreichend ist, um beispielsweise bei sehr niedrigen Außentemperaturen eine hinreichende Heizungsfunktion zu realisieren.A problem with conventional motor vehicle heating systems, in which warm air generated by heat exchange with the engine cooling water consists in that a certain amount of time is required after starting the engine until the cooling water has warmed up sufficiently to have a heating function, realize. Furthermore, especially in the case of consumption-optimized engines even with the engine warmed up, the case occurs that from the engine the heat emitted by the cooling water is not sufficient, for example sufficient heating function at very low outside temperatures realize.

Das Problem der Schaffung eines mindestens zum Teil motortemperatur­ unabhängigen Heizsystems wird üblicherweise mittels des Vorsehens einer elektrischen Zusatzheizung bzw. einer Verbrennungsheizung angegangen, welche Kraftstoff verbrennt, um in den Fahrzeuginnenraum zu leitende Luft zu erwärmen. Aus der DE 975 062 B ist ein Heizsystem bekannt, bei welchem ein Verbrennungsheizgerät vorgesehen ist, welches einen Wärmetauscher heizt, welcher stromauf des Kühlwasserwärmetauschers in dem Luftstrom vorgesehen ist, welcher dem Fahrzeuginnenraum zugeführt wird. Auf diese Weise wird dem Fahrzeuginnenraum zuzuführende Luft mittels des Verbrennungsheizgeräts bereits vorgewärmt, bevor sie in den Kühlwasserwärmetauscher eintritt. The problem of creating an at least partially engine temperature independent heating system is usually provided by providing one electrical additional heating or a combustion heater, which burns fuel to direct air into the vehicle interior heat. A heating system is known from DE 975 062 B, in which a combustion heater is provided which has a heat exchanger heats upstream of the cooling water heat exchanger in the air flow is provided, which is supplied to the vehicle interior. To this Air is supplied to the vehicle interior by means of the Combustion heater already preheated before entering the Cooling water heat exchanger occurs.  

Aus DE 197 29 899 C1 und DE 37 15 194 A1 sind Heizsysteme bekannt, bei welchen eine elektrische Zusatzheizung stromab des Kühlwasser­ wärmetauschers im Luftzufuhrkanal zum Innenraum angeordnet ist, um aus dem Kühlwasserwärmetauscher austretende Luft zu erwärmen.Heating systems are known from DE 197 29 899 C1 and DE 37 15 194 A1 which an additional electrical heater downstream of the cooling water Heat exchanger is arranged in the air supply duct to the interior to heat the air emerging from the cooling water heat exchanger.

Nachteilig bei diesen bekannten Heizsystemen ist, dass einerseits die Heizleistung eines einzelnen Heizgeräts nur in relativ engen Grenzen variiert werden kann und andererseits die Heizleistung nur punktuell in das Kühlmittelsystem oder die Heizluft eingebracht werden kann.A disadvantage of these known heating systems is that on the one hand the The heating output of a single heater only varies within relatively narrow limits can and on the other hand, the heating output only selectively in the Coolant system or the heating air can be introduced.

Es ist Aufgabe der vorliegenden Erfindung, ein Heizsystem für ein Kraftfahrzeug zu schaffen, dessen Heizleistung flexibler gesteuert und besser verteilt werden kann.It is an object of the present invention to provide a heating system for a To create a motor vehicle whose heating output is controlled more flexibly and better can be distributed.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein Heizsystem gemäß Anspruch 1. Bei dieser erfindungsgemäßen Lösung ist vorteilhaft, dass bei einfacher Bedienbarkeit eine hohe Flexibilität bei der räumlichen Verteilung und dem Gesamtbetrag der Heizleistung ermöglicht wird. Ferner kann ein besserer Wirkungsgrad als bei einem einzigen Heizmodul erzielt werden.This object is achieved according to the invention by a heating system Claim 1. With this solution according to the invention it is advantageous that at Ease of use, high flexibility in terms of spatial distribution and the total amount of heating power is made possible. Furthermore, a better one Efficiency than can be achieved with a single heating module.

Bevorzugte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Preferred embodiments of the invention are in the subclaims specified.

Im folgenden wird die Erfindung anhand der beigefügten Zeichnung beispielhaft näher erläutert, welche schematisch den Aufbau eines erfindungsgemäßen Heizsystems zeigt.In the following the invention with reference to the accompanying drawing is exemplary explained in more detail, which schematically shows the structure of an inventive Heating system shows.

Gemäß der einzigen Figur sind bei einem Heizsystem für ein Kraftfahrzeug drei räumlich voneinander getrennte Heizmodule vorgesehen, nämlich eine Gebläse- und Brennereinheit 10 sowie zwei elektrische Heizer 12 und 14. Die Brennereinheit 10 verbrennt Kraftstoff oder Gas, um heiße Verbrennungsgase zu erzeugen und dadurch mehrere Wärmetauscher 16 mit Wärme zu versorgen, welche vorgesehen sind, um dem Fahrzeuginnenraum zugeführte oder bereits im Fahrzeuginnenraum befindliche Luft an mehreren voneinander getrennten Stellen zu erwärmen. Alternativ können zumindest einige der Wärmetauscher 16 dazu dienen, Kühlmittel im Kühlmittelkreislauf des Fahrzeugmotors zu erwärmen. Die Wärmezufuhr von der Brennereinheit 10 zu den Wärmetauschern 16 kann entweder direkt durch Zuleiten der heißen Verbrennungsgase oder indirekt dadurch erfolgen, dass ein durch die Wärmetauscher zirkulierendes Medium vorgesehen ist, welches von den heißen Verbrennungsgasen erwärmt wird, um die einzelnen Wärmetauscher 16 mit Wärme zu versorgen. Die Wärmetauscher 16 können, wie in der Figur angedeutet, parallel und/oder seriell geschaltet sein. Die Wärmetauscher 16 sowie die elektrischen Heizer 12 und 14 sind möglichst nahe an den Stellen angeordnet, an welchen die Heizwärme bereitgestellt werden soll. Dabei kann es sich beispielsweise um den Bereich unter den jeweiligen Fahrzeugsitzen oder um den Eintrittsbereich der Luft in den Fahrzeuginnenraum handeln. Falls die Wärmetauscher 16 oder ein Teil der Wärmetauscher 16 Kühlmittel im Kühlmittelkreislauf des Fahrzeugmotors erwärmen sollen, sollte auch hier die Platzierung der Wärmetauscher möglichst nahe an den Steilen erfolgen, an denen die Wärmezufuhr am zweckmäßigsten ist. Auch die elektrischen Heizer 12 und 14 können gegebenenfalls zur Kühlmittelbeheizung vorgesehen werden. Vorzugsweise sind die elektrischen Heizer 12 und 14 so beschaltet, dass sie nur dann mit elektrischer Energie beaufschlagt werden, wenn der Fahrzeuggenerator die erforderliche Leistung liefert, um die Fahrzeugbatterie zu schonen.According to the single figure, in a heating system for a motor vehicle, three spatially separate heating modules are provided, namely a blower and burner unit 10 and two electric heaters 12 and 14 . The burner unit 10 burns fuel or gas in order to generate hot combustion gases and thereby to supply a plurality of heat exchangers 16 with heat which are provided in order to heat air which is supplied to the vehicle interior or is already present in the vehicle interior at a plurality of locations which are separate from one another. Alternatively, at least some of the heat exchangers 16 can be used to heat coolant in the coolant circuit of the vehicle engine. The heat supply from the burner unit 10 to the heat exchangers 16 can take place either directly by supplying the hot combustion gases or indirectly by providing a medium that circulates through the heat exchangers and is heated by the hot combustion gases in order to supply the individual heat exchangers 16 with heat . As indicated in the figure, the heat exchangers 16 can be connected in parallel and / or in series. The heat exchangers 16 and the electric heaters 12 and 14 are arranged as close as possible to the points at which the heating heat is to be provided. This can be, for example, the area under the respective vehicle seats or the air entry area into the vehicle interior. If the heat exchangers 16 or a part of the heat exchangers 16 are to heat coolant in the coolant circuit of the vehicle engine, the placement of the heat exchangers should also take place as close as possible to the places where the heat supply is most expedient. The electric heaters 12 and 14 can optionally also be provided for heating the coolant. The electrical heaters 12 and 14 are preferably connected in such a way that electrical energy is only applied to them when the vehicle generator supplies the power required to conserve the vehicle battery.

Die Heizmodule 10, 12 und 14 werden von einem gemeinsamen Steuergerät 18 gesteuert, wobei die Heizleistung eines jeden Heizmoduls 10, 12 bzw. 14 einzeln gesteuert werden kann. Auf diese Weise wird eine einfache Bedienung des Heizsystems gewährleistet, wobei dennoch eine flexiblere Steuerung der Heizleistung sowie ein höherer Wirkungsgrad erzielbar ist, als dies bei Verwendung nur eines einzelnen Heizmoduls der Fall wäre.The heating modules 10 , 12 and 14 are controlled by a common control device 18 , wherein the heating power of each heating module 10 , 12 and 14 can be controlled individually. In this way, simple operation of the heating system is ensured, but a more flexible control of the heating power and a higher degree of efficiency can be achieved than would be the case if only a single heating module were used.

Es versteht sich, dass das in der Figur gezeigte Heizsystem zusätzlich zu dem üblichen Fahrzeug-Heizsystem mittels Abwärme aus dem Kühlmittelkreislauf vorgesehen ist, sofern das Fahrzeug einen kühlmittelgekühlten Motor aufweist.It is understood that the heating system shown in the figure is in addition to that usual vehicle heating system using waste heat from the coolant circuit is provided if the vehicle has a coolant-cooled engine.

Claims (9)

1. Heizsystem für ein Kraftfahrzeug, mit mehreren räumlich voneinander getrennten Heizmodulen, die jeweils eine eigene Einrichtung (10, 12, 14) zum Erzeugen von Wärme aufweisen, wobei ein gemeinsames Steuergerät (18) vorgesehen ist, um die Heizleistung jedes Heizmoduls zu steuern.1. Heating system for a motor vehicle, with a plurality of spatially separate heating modules, each having its own device ( 10 , 12 , 14 ) for generating heat, a common control device ( 18 ) being provided to control the heating power of each heating module. 2. Heizsystem gemäß Anspruch 1, dadurch gekennzeichnet, dass mindestens eines der Heizmodule von einem elektrischen Heizer (12, 14) gebildet wird.2. Heating system according to claim 1, characterized in that at least one of the heating modules is formed by an electric heater ( 12 , 14 ). 3. Heizsystem gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens eines der Heizmodule von einer Verbrennungseinrichtung (10) gebildet wird, die Kraftstoff oder Gas verbrennt, um heiße Verbrennungsgase zu erzeugen und mindestens einen Wärmetauscher (16) mit Wärme zu versorgen.3. Heating system according to claim 1 or 2, characterized in that at least one of the heating modules is formed by a combustion device ( 10 ) which burns fuel or gas in order to generate hot combustion gases and to supply at least one heat exchanger ( 16 ) with heat. 4. Heizsystem gemäß Anspruch 3, dadurch gekennzeichnet, dass die Verbrennungseinrichtung (10) eine Mehrzahl von räumlich voneinander getrennten Wärmetauschern (16) versorgt.4. Heating system according to claim 3, characterized in that the combustion device ( 10 ) supplies a plurality of spatially separate heat exchangers ( 16 ). 5. Heizsystem gemäß Anspruch 4, dadurch gekennzeichnet, dass die Wärmetauscher (16) möglichst nahe an den Stellen angeordnet sind, an welchen die Heizwärme bereitgestellt werden soll.5. Heating system according to claim 4, characterized in that the heat exchangers ( 16 ) are arranged as close as possible to the points at which the heating energy is to be provided. 6. Heizsystem gemäß Anspruch 4 oder 5, dadurch gekennzeichnet, dass jeder Wärmetauscher (16) im Austausch mit dem Fahrzeuginnenraum zuzuführender Luft oder mit Kühlmittel im Kühlmittelkreislauf des Fahrzeugmotors steht. 6. Heating system according to claim 4 or 5, characterized in that each heat exchanger ( 16 ) is in exchange with the air to be supplied to the vehicle interior or with coolant in the coolant circuit of the vehicle engine. 7. Heizsystem gemäß Anspruch 3 bis 6, dadurch gekennzeichnet, dass die Verbrennungseinrichtung (10) die Wärmetauscher (16) direkt mit heißen Verbrennungsgasen versorgt.7. Heating system according to claim 3 to 6, characterized in that the combustion device ( 10 ) supplies the heat exchanger ( 16 ) directly with hot combustion gases. 8. Heizsystem gemäß Anspruch 3 bis 6, dadurch gekennzeichnet, dass die Verbrennungseinrichtung (10) mittels heißer Verbrennungsgase ein zirkulierendes Medium erwärmt, welches die Wärmetauscher (16) mit Wärme versorgt.8. Heating system according to claim 3 to 6, characterized in that the combustion device ( 10 ) heats a circulating medium by means of hot combustion gases, which supplies the heat exchanger ( 16 ) with heat. 9. Heizsystem gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es sich bei dem Kraftfahrzeug um einen Pkw, ein Nutzfahrzeug oder ein Campingfahrzeug handelt.9. Heating system according to one of the preceding claims, characterized characterized in that the motor vehicle is a car, a Commercial vehicle or a camping vehicle.
DE10016694A 2000-04-04 2000-04-04 Heating system for motor vehicle has several spatially separate heating modules, each with its own device for generating heat, common controller for controlling heating power of each module Expired - Lifetime DE10016694C1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10016694A DE10016694C1 (en) 2000-04-04 2000-04-04 Heating system for motor vehicle has several spatially separate heating modules, each with its own device for generating heat, common controller for controlling heating power of each module
PCT/EP2001/003762 WO2001074613A1 (en) 2000-04-04 2001-04-03 Heating system for a motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10016694A DE10016694C1 (en) 2000-04-04 2000-04-04 Heating system for motor vehicle has several spatially separate heating modules, each with its own device for generating heat, common controller for controlling heating power of each module

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DE10016694C1 true DE10016694C1 (en) 2001-09-20

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WO (1) WO2001074613A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222073A1 (en) * 2002-05-17 2003-12-04 Daimler Chrysler Ag Heating and / or air conditioning with additional heating
WO2014118204A1 (en) * 2013-01-31 2014-08-07 Volkswagen Aktiengesellschaft Method and device for selecting one or more heat sources of an interior heating system of a motor vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3715194A1 (en) * 1987-05-07 1988-11-24 Kromberg & Schubert Heating arrangement for the passenger compartment of motor vehicles
DE19729899C1 (en) * 1997-07-12 1998-10-01 Daimler Benz Ag Heating- or air-conditioning plant for motor vehicle passenger space with heat-exchanger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975062C (en) 1953-01-01 1961-07-27 Wilhelm Baier K G Heating and ventilation system for motor vehicles
FR2686837B1 (en) * 1992-01-31 1995-05-24 Valeo Thermique Habitacle DEVICE FOR HEATING-VENTILATION OF THE INTERIOR OF A MOTOR VEHICLE WITH LOW THERMAL REJECTION ENGINE.
DE19637020C2 (en) * 1996-09-12 2001-05-03 Eberspaecher J Gmbh & Co Fuel-operated heating device, in particular auxiliary heater for motor vehicles
DE19647935C5 (en) * 1996-11-20 2009-08-20 Ts Thermo Systeme Gmbh Electric interior heating for caravans
JP3774991B2 (en) * 1997-05-13 2006-05-17 株式会社日本自動車部品総合研究所 Vehicle heating system
DE19721439C2 (en) * 1997-05-21 1999-05-27 Degussa Additional heating for motor vehicles with internal combustion engines
DE19922388A1 (en) * 1998-05-18 2000-02-03 Kurt Michael Desch Parking and auxiliary heater for motor vehicle has base body and heat exchanger as extruded aluminium section in which are constructed shafts to accommodate inserted catalyser elements

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3715194A1 (en) * 1987-05-07 1988-11-24 Kromberg & Schubert Heating arrangement for the passenger compartment of motor vehicles
DE19729899C1 (en) * 1997-07-12 1998-10-01 Daimler Benz Ag Heating- or air-conditioning plant for motor vehicle passenger space with heat-exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222073A1 (en) * 2002-05-17 2003-12-04 Daimler Chrysler Ag Heating and / or air conditioning with additional heating
WO2014118204A1 (en) * 2013-01-31 2014-08-07 Volkswagen Aktiengesellschaft Method and device for selecting one or more heat sources of an interior heating system of a motor vehicle

Also Published As

Publication number Publication date
WO2001074613A1 (en) 2001-10-11

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Owner name: WEBASTO AG, 82131 GAUTING, DE

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