EP4200560A1 - Heiz-system, umfassend ein brennstoffbetriebenes heizgerät - Google Patents
Heiz-system, umfassend ein brennstoffbetriebenes heizgerätInfo
- Publication number
- EP4200560A1 EP4200560A1 EP21765629.7A EP21765629A EP4200560A1 EP 4200560 A1 EP4200560 A1 EP 4200560A1 EP 21765629 A EP21765629 A EP 21765629A EP 4200560 A1 EP4200560 A1 EP 4200560A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- heater
- heating system
- power consumption
- case
- 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- Withdrawn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
-
- 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 devices
- B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
- B60H1/2203—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from burners
- B60H1/2206—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from burners controlling the operation of burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D3/00—Burners using capillary action
- F23D3/40—Burners using capillary action the capillary action taking place in one or more rigid porous bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/02—Liquid fuel
- F23K5/04—Feeding or distributing systems using pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/002—Regulating fuel supply using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/21—Burners specially adapted for a particular use
- F23D2900/21002—Burners specially adapted for a particular use for use in car heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2300/00—Pretreatment and supply of liquid fuel
- F23K2300/20—Supply line arrangements
- F23K2300/206—Control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2900/00—Special features of, or arrangements for fuel supplies
- F23K2900/05141—Control or safety devices in liquid fuel supply line
Definitions
- the invention relates to a heating system, in particular for heating up a motor vehicle, a method for filling a heater with fuel, a method for starting, in particular starting a heater or heating system for the first time, and using a parameter assigned to an ignition device.
- WO 2014/044570 A1 describes a method for automatic line filling in a fuel-operated heating system with flame detection.
- a line filling process is initiated, the heating system is controlled so that the fuel is heated or attempts to ignite during the line filling process, and the line filling process is terminated when a flame is detected.
- the fuel line can be pre-filled.
- a control time and dosing pump frequency should be selected in such a way that a fuel line is not overfilled (which would be harmful to the heater), but the unfilled length is as short as possible.
- the length of the line can depend greatly on the vehicle in question, so that after pre-filling, there may still be a need for up to several meters (for example 3 to 4 m) of unfilled line to be filled.
- the heating can be started, with a dosing pump being operated at an increased frequency (e.g. 3 Hz instead of the usual 1 Hz) in deviation from the "normal start” until a flame is detected.
- a dosing pump being operated at an increased frequency (e.g. 3 Hz instead of the usual 1 Hz) in deviation from the "normal start” until a flame is detected.
- a line length of for example 4.5 m can be filled within a predetermined (maximum) initial start time (for example 4 min).
- a heating system preferably for heating a vehicle (preferably a motor vehicle, particularly preferably a car and/or truck), comprising a fuel-operated heater (with evaporative burner) and a detection unit.
- the detection unit is configured to detect the presence (or presence) of fuel in the heater.
- the detection unit is preferably configured to detect the presence of fuel in the heater at least for a (first) case in which there is no flame formation (or no ignition has been successfully carried out).
- the detection unit is particularly preferably configured to detect the presence of fuel in the heater both for the first case in which there is no flame formation (or ignition has not yet taken place successfully) and for a second case in which a There is a flame (i.e. ignition has been successfully carried out).
- a core concept of the invention lies in being able to (also) detect (detect) the presence of fuel on the heating device (by means of the detection unit) when there is no flame (combustion). As a result, a comparatively long (empty) fuel line can be quickly filled (as in principle also in the prior art).
- the heating system can be defined by a (common) assembly, defined in particular by a common (outer) housing.
- the heating system can also be in the form of separate components that are connected to one another (for example via electrical connections and/or fluid-conducting connections).
- the detection unit and the heater can be components of a common assembly, for example in such a way that the detection unit is arranged in a heater housing.
- the detection unit can also be arranged (at least partially, if necessary completely) externally with respect to the heater, in particular outside of a heater housing.
- the heating device comprises a (vaporization) burner.
- the heater preferably includes at least one ignition device, in particular at least one glow plug, for igniting a fuel-air mixture.
- the presence of fuel in the heater can be detected directly (by direct detection of the presence of fuel) and/or indirectly (in particular by at least one parameter that is influenced by a fuel that is present).
- the detection unit is preferably configured to use the same parameter (in particular a power consumption of an ignition device, preferably at least one glow plug) in the event that no flame is formed as in the event that a flame is formed (if the presence or existence of fuel in the heater is carried out).
- a power consumption of an ignition device preferably at least one glow plug
- the detection unit is preferably configured to take into account at least one parameter that is defined and/or determined in connection with at least one other function of the heater, in particular a control or regulation function (such as the definition or determination of an electrical power that requires in order to regulate an ignition device, in particular a glow plug, to a desired temperature).
- a control or regulation function such as the definition or determination of an electrical power that requires in order to regulate an ignition device, in particular a glow plug, to a desired temperature.
- the (respective) parameter is used when carrying out the detection, for example within a corresponding calculation and/or a comparison and/or an analysis in general that is carried out by the registration unit is carried out.
- the heating system in particular the heater, preferably comprises a control and/or computing device (for example comprising a processor, in particular a microprocessor) in order to carry out the necessary controls and/or calculations.
- the control and/or computing device can at least partially include or form the detection unit.
- the detection unit can also at least partially include (or form) the control and/or computing device.
- the control and/or computing device can form a structural unit with the heating device (for example, be arranged in a common housing) or be formed externally with respect to the heating device and/or the detection unit. Insofar as the functionalities of the heating system and/or control and/or arithmetic method steps are described, these are preferably carried out by the control and/or arithmetic unit or the control and/or arithmetic unit is configured accordingly.
- the detection unit is preferably configured to take into account at least one, in particular electrical and/or adjustable, optionally controllable, operating parameter of the heating system in order to carry out the detection.
- An operating parameter of the heating system is to be understood in particular as a parameter that influences the manner in which the heating system is operated, such as, for example, electrical power for operating one or more components. Parameters that only result from an existing operation (such as a parameter relating to the flame) are in particular not to be understood as operating parameters. When such an operating parameter is taken into account, information that is (usually) available anyway can be used in a synergistic manner, which simplifies the heating system structurally and also functionally.
- the same or the same parameters are preferably taken into account for the detection in the first case and in the detection in the second case.
- an operating parameter such as in particular an electrical power consumption by a/the ignition device
- another parameter such as in particular a parameter related to flame formation (combustion), such as a parameter related to an exhaust gas (e.g., temperature) resulting from the combustion.
- an operating parameter e.g. electrical power for an ignition device/glow plug
- another parameter e.g. relating to the formation of a flame
- the detection unit can be configured to take into account at least one electrical and/or adjustable, optionally controllable, parameter of the at least one ignition device, in particular at least one glow plug, of the heater in order to carry out the detection assigned.
- the detection of the presence of fuel in the heating device can be simplified, in particular by taking into account or using a parameter which (at least usually) has to be determined or specified anyway (in particular in the case of constant temperature regulation).
- the detection unit is preferably configured to detect electrical power for at least one (power consumption of at least one) ignition device, in particular glow plug(s). It is particularly preferred that at least an increase in electrical power consumption (in particular at a constant temperature of the ignition device or at a temperature of the ignition device regulated to a constant value) can be determined (or is taken into account in the detection), preferably both an increase in the electrical power consumption and a reduction in electrical power consumption (at a constant temperature or at a temperature regulated to a constant value) can be determined (or is taken into account in the detection).
- An increase in the electrical power consumption is to be understood in particular as an increase from a positive value to a (higher) positive value (>0). Accordingly, a decrease is to be understood in particular as a change from a higher positive value to a lower positive value (>0).
- a parameter e.g. B. a power or power consumption
- a parameter can be recorded or determined, preferably (by the recording unit) at least 10, more preferably at least 100
- different parameter values in particular as a function of time
- the detection unit this also applies in particular to every other parameter, in particular operating parameters, which is mentioned above and/or below).
- a parameter e.g. B. a power or power consumption
- a parameter is variable, in particular adjustable, preferably at least 10, more preferably at least 100
- different parameter values can be assumed, in particular adjusted, z. B. by a / the arithmetic and / or control unit (this applies in particular to any other parameter, in particular operating parameters, which is mentioned above and / or below).
- the aim of the invention is to be able to read out the (missing) information about the presence of fuel (“fuel is available”) by evaluating existing sensor and/or measured values.
- the electrical power is preferably used as the measured variable (and/or or a related parameter, such as an electric current and/or an electric voltage) that is necessary to keep constant an ignition device temperature (glow pin temperature or glow pin resistance) (possibly settled at the start).
- An ignition device temperature (glow pin temperature) can be measurable, for example, via an electrical ignition device resistance or glow pin resistance.
- At least one measuring device is preferably provided in order to measure or determine the ignition device temperature.
- the necessary heating power for the ignition device increases from initially around 65 to 70 W (generally: a first value) to (at least almost) 100 W (generally: a second value) as soon as fuel is fed into the heater (into the burner) is conveyed without a flame developing.
- the ignition device (the glow plug) is cooled by the fuel (e.g. diesel).
- a temperature of at least one (the at least one) ignition device, in particular (the) at least one (en) glow plug, can preferably be regulated to a constant value (in particular via a corresponding computing and/or control unit of the heating system or heater).
- the detection unit is preferably configured to detect whether a flame has formed when there is (detected) fuel in the heater.
- a (the) arithmetic and/or control unit of the heating system is preferably configured to carry out a (further) start attempt, in particular with a lean mixture (compared to a fuel-air mixture in a first start attempt), if a non-presence ( Absence) of a flame being established when the fuel is present (detected). This makes it possible to carry out a second (conventional or more robust) start attempt within the time available for a first start.
- a method for filling in particular initial filling a heater (and/or heating system, as described above and/or below), in particular for heating up a motor vehicle, with fuel, comprising the steps: a) supplying the fuel to the heater via at least one fuel delivery device, b) detecting the presence of fuel in the heater in a (first) case in which there is no flame formation.
- Step b) should preferably be carried out in such a way that it is at least recognized that fuel is present in the heating device if no flame formation has taken place (is present). However, step b) is preferably carried out in such a way that the presence of fuel can be determined (detected) in any case (that is to say also when a flame forms).
- step b) at least one parameter is taken into account, which is associated with at least one ignition device, in particular at least one glow plug, of the heater.
- an electrical heating output or power consumption of at least one ignition device in particular at least a glow plug, preferably in such a way that at least an increase in the electrical power consumption (in particular with a constant temperature of the ignition device or a constantly controlled temperature of the ignition device) can be determined, preferably both an increase in the electrical power consumption and a reduction in the electrical power consumption can be determined ( and used accordingly to record the fuel present).
- a temperature of at least one (the at least one) ignition device, in particular (the) at least one (s) glow plug, is preferably regulated to a constant value.
- the above object is achieved in particular by a method for starting, in particular initial starting, of a heater and/or heating system, preferably as described above and/or below, in particular for heating up a motor vehicle, comprising the above method for filling (in particular initial filling) a heater.
- the method for starting it is preferably detected whether a flame has formed when there is (detected) fuel in the heater. More preferably, a further starting attempt (in particular with a lean mixture) is carried out if the non-existence (absence) of flame formation is determined.
- the above object is achieved in particular by using a parameter assigned to an ignition device (in particular a heater, preferably for heating up a motor vehicle), in particular a glow plug, in particular an electrical power consumption (heating output) and/or a variable derived therefrom, for detecting the presence of Fuel in the heater at least in a first case in which there is no flame formation (particularly preferably both for the first case in which no flame formation occurs and for the second case in which a flame formation exists).
- an ignition device in particular a heater, preferably for heating up a motor vehicle
- a glow plug in particular an electrical power consumption (heating output) and/or a variable derived therefrom
- FIG. 1 shows a schematic representation of an embodiment of a heating system according to the invention
- the heating system 10 includes a heater 20, a metering pump 30, and a tank 40, where the tank 40 may be the same as that powering an internal combustion engine of a motor vehicle.
- the heater 20 is supplied with a fuel via a fluid line preferably defined as a pressure line 41 by the metering pump 30 , the metering pump 30 conveying the fuel out of the tank 40 via a fluid line preferably defined as a suction line 42 .
- Units 61, 62 such as at least one acquisition unit 61 and possibly a timer 62, supply or acquire data about the heating system, with the heating system 10 also comprising an arithmetic and/or control unit 50 which, for example, is connected via electrical lines 51 to 55 to the Heater 20, the metering pump 30 and the peripheral devices 61, 62 is connected.
- the arithmetic and/or control unit 50 preferably comprises an (electronic) control unit or is formed by one.
- the detection unit 61 can be part of the arithmetic and/or control unit 50 or can be designed separately.
- FIG. 1 is to be understood purely schematically.
- Heater 20 preferably has a burner 21, a glow plug 22 and a combustion air fan 23, each of which can be controlled electrically and is connected to computing and/or control unit (control unit) 50, for example, by electrical lines 51, 52, 57.
- the burner 21 burns an air and fuel mixture, with the glow plug 22 supplying the heat required to ignite the air and fuel mixture.
- the heat for operating a heating process can be obtained via a heat exchanger on an exhaust gas duct of the heater.
- the metering pump 30 is preferably designed as an electromagnetic reciprocating piston pump with a controllable drive for delivering the fuel from the tank.
- the drive can be designed, for example, as an electromagnet with a coil, the coil electromagnetically moving a reciprocating piston for conveying the fuel due to an energization that can be controlled by the arithmetic and/or control unit (control unit) 50 .
- the dosing pump 30 thus preferably has a controllable delivery frequency at which the reciprocating piston moves back and forth in the coil.
- other types of dosing pumps can also be used, for example diaphragm or gear pumps, which have a controllable, preferably electric or electromagnetic drive and can be controlled in a similar manner.
- the arithmetic and/or control unit (the control unit) 50 can receive data signals from the data acquisition unit 61 and possibly the timer 62 and the data signals for controlling the heater - if the acquisition unit is not part of the arithmetic and/or control unit anyway 20, the components of which use burner 21, glow plug 22 and/or combustion air fan 23, and/or metering pump 30.
- Routines for calculating control commands for controlling heater 20, its components 21, 22 and/or metering pump 30 can run on processor unit 56 of arithmetic and/or control unit (control unit) 50, with the arithmetic and/or Control unit (the control unit) 50 via the electrical lines 51 to 53, 57 to the heater 20, the components 21, 22, 23 and / or the metering pump 30 can send control signals for the controller. It goes without saying that the arithmetic and/or control unit (the control unit) 50 can cause the drive of the metering pump 30, for example the coil or the electric motor, to be energized.
- the heating device 20 and the dosing pump 30 each have their own arithmetic and/or control unit, with the respective arithmetic and/or control unit possibly sending the data from the arithmetic and/or control unit (the control unit) 50 Interprets control signals and in turn controls the dosing pump and the heater and its components.
- the arithmetic and/or control unit (the control device) 50 can optionally also receive indirect data signals from a central control device via a CAN or LIN bus system. It goes without saying that the arithmetic and/or control unit (the control unit) 50 can be designed as an integral part of the heating device 20 or as an independent component.
- the detection unit 61 is configured to derive from an electric power for operating (heating or keeping warm) the glow plug whether fuel is present (present) in the heater or not, which will be explained in more detail below.
- FIG. 2 shows a diagram of the glow plug temperature GT or electrical activation power P of the glow plug over time t.
- FIG. 3 shows a diagram analogous to FIG. In contrast to FIG. 2, however, there is no flame formation (immediately) after time tB at which fuel is present in the heater. In concrete terms, however, the curves of the temperature and power correspond to those of FIG. 2 up to the point in time tB at which fuel is present at the heater.
- control unit Arithmetic and/or control unit (control unit)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020121759.5A DE102020121759B4 (de) | 2020-08-19 | 2020-08-19 | Heiz-System, umfassend ein brennstoffbetriebenes Heizgerät |
| PCT/EP2021/072895 WO2022038169A1 (de) | 2020-08-19 | 2021-08-18 | Heiz-system, umfassend ein brennstoffbetriebenes heizgerät |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4200560A1 true EP4200560A1 (de) | 2023-06-28 |
Family
ID=77627120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21765629.7A Withdrawn EP4200560A1 (de) | 2020-08-19 | 2021-08-18 | Heiz-system, umfassend ein brennstoffbetriebenes heizgerät |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12502934B2 (de) |
| EP (1) | EP4200560A1 (de) |
| CN (1) | CN115867751B (de) |
| DE (1) | DE102020121759B4 (de) |
| WO (1) | WO2022038169A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002882A (en) * | 1975-03-05 | 1977-01-11 | Mccutchen Charles W | Heating circuit |
| DE19605216C5 (de) * | 1996-02-13 | 2010-01-21 | Webasto Ag | Verfahren zum Betreiben eines Fahrzeugzusatzheizgerätes und Glüheinrichtung |
| DE19605326C1 (de) * | 1996-02-14 | 1997-02-27 | Webasto Thermosysteme Gmbh | Verfahren zum Starten eines Fahrzeugzusatzheizgerätes |
| DE102004059148A1 (de) * | 2004-12-08 | 2006-06-14 | Webasto Ag | Brennervorrichtung für flüssigen Brennstoff |
| DE102004062831A1 (de) * | 2004-12-27 | 2006-07-13 | J. Eberspächer GmbH & Co. KG | Verfahren zum Starten eines Fahrzeugheizgerätes und Fahrzeugheizgerät |
| DE102008033096A1 (de) * | 2008-07-15 | 2010-02-11 | Uhde Gmbh | Verfahren und Vorrichtung zum Zünden und zum Betrieb von Brennern bei der Vergasung kohlenstoffhaltiger Brennstoffe |
| DE202011003938U1 (de) | 2011-03-14 | 2011-08-05 | Merz Electronic Systems Gmbh | Vorrichtung zur Kontrolle eines Verbrennungsvorgangs |
| DE102012216826B4 (de) * | 2012-09-19 | 2018-09-20 | Webasto SE | Heizsystem und Verfahren zur automatischen Leitungsbefüllung |
| PT109749B (pt) * | 2016-11-18 | 2024-05-02 | Bosch Termotecnologia Sa | Dispositivo para aparelho de aquecimento |
| DE102018107216A1 (de) | 2018-03-12 | 2019-09-12 | Eberspächer Climate Control Systems GmbH & Co. KG | Fahrzeugheizsystem |
-
2020
- 2020-08-19 DE DE102020121759.5A patent/DE102020121759B4/de active Active
-
2021
- 2021-08-18 EP EP21765629.7A patent/EP4200560A1/de not_active Withdrawn
- 2021-08-18 US US18/021,465 patent/US12502934B2/en active Active
- 2021-08-18 CN CN202180050703.3A patent/CN115867751B/zh active Active
- 2021-08-18 WO PCT/EP2021/072895 patent/WO2022038169A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20250170873A9 (en) | 2025-05-29 |
| US20230339290A1 (en) | 2023-10-26 |
| US12502934B2 (en) | 2025-12-23 |
| DE102020121759B4 (de) | 2022-04-21 |
| DE102020121759A1 (de) | 2022-02-24 |
| CN115867751B (zh) | 2026-04-10 |
| CN115867751A (zh) | 2023-03-28 |
| WO2022038169A1 (de) | 2022-02-24 |
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