EP2315493A1 - Dispositif de chauffage notamment pour une climatisation de véhicule automobile - Google Patents

Dispositif de chauffage notamment pour une climatisation de véhicule automobile Download PDF

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Publication number
EP2315493A1
EP2315493A1 EP09290807A EP09290807A EP2315493A1 EP 2315493 A1 EP2315493 A1 EP 2315493A1 EP 09290807 A EP09290807 A EP 09290807A EP 09290807 A EP09290807 A EP 09290807A EP 2315493 A1 EP2315493 A1 EP 2315493A1
Authority
EP
European Patent Office
Prior art keywords
electrical resistance
current
delay circuit
heating device
electrical
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.)
Granted
Application number
EP09290807A
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German (de)
English (en)
Other versions
EP2315493B1 (fr
Inventor
Thomas Blum
Michel Brun
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.)
Mahle Behr France Rouffach SAS
Original Assignee
Behr France Rouffach SAS
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.)
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Publication date
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Application filed by Behr France Rouffach SAS filed Critical Behr France Rouffach SAS
Priority to EP09290807.8A priority Critical patent/EP2315493B1/fr
Priority to CN2010105120622A priority patent/CN102118892A/zh
Priority to US12/908,490 priority patent/US20110091190A1/en
Publication of EP2315493A1 publication Critical patent/EP2315493A1/fr
Application granted granted Critical
Publication of EP2315493B1 publication Critical patent/EP2315493B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications
    • H05B1/0236—Industrial applications for vehicles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient

Definitions

  • the invention relates to a heating device, in particular for a motor vehicle air conditioning system according to the preamble of claim 1, and to a method for operating such a heating device according to the preamble of claim 12.
  • Automotive air conditioning systems are used for heating and cooling of air, which is supplied to a motor vehicle interior. To heat the air while electric. Heating devices or resistance heaters, especially in hybrid or electric vehicles used. Electric current is conducted through the electrical resistance heaters and, due to the electrical resistance of the electrical resistance heaters, they heat up, so that the air supplied to the motor vehicle interior can be heated by passing air past the electrical resistance heaters.
  • the electrical resistance heaters are energized with current in pulse width modulation (PWM).
  • PWM pulse width modulation
  • the electrical heating power of the electrical resistance heaters is controlled in such a way that the pulse width modulation is changed. That is, for an increase in the electric heating power, the turn-on time is lengthened and the turn-off time is shortened, and conversely, with a decrease in the electric heater power, the turn-on time is decreased and the turn-off time is increased.
  • the electric current for the resistance heaters comes from a vehicle electrical system as a power source of the motor vehicle.
  • the pulse width modulated current is delayed in time before being supplied to the individual electrical resistance heaters by means of a microcontroller.
  • the resistance heaters thus have switch-on times which are not simultaneous but are delayed in time and thus temporally successive.
  • the maximum current demand for the resistance heaters can be reduced because all the resistance heaters are not turned on or energized at the same time, i. H. the turn-on times of the electrical resistance heaters are not identical.
  • the microcontroller which generally has a processor and can thus execute a program or a software, is generally arranged in the motor vehicle air conditioning system, in particular in the area of the resistance heating devices.
  • microcontrollers are expensive to manufacture and therefore expensive and thus also prone to failure during operation.
  • the object of the present invention is to provide a heating device, in particular for motor vehicle air conditioners, and a method for operating such a heating device, in which a small maximum current peak demand occurs when and when electrical resistance heating devices are switched on or energized with a low technical outlay ,
  • the heater should be inexpensive to manufacture reliable in operation.
  • a heating device in particular for an air conditioner, comprising a housing, preferably a fan, preferably a refrigerant evaporator for cooling an air to be supplied to a vehicle interior, at least two electrical resistance heaters for heating the air to be supplied to the vehicle interior, wherein the at least two electrical resistance heaters a device for supplying at least one electrical resistance heater with a time delay with respect to another electrical resistance heater, wherein the device comprises at least one delay circuit, preferably two delay circuits, and / or the device of at least one delay circuit, preferably two Delay circuits, exists.
  • the at least one delay circuit is at least one, in particular exclusively, analog delay circuit and / or the at least one delay circuit has no processor and / or of the at least one delay circuit no program executable and / or the at least one delay circuit is an electrical and / or electronic circuit, in particular without processor.
  • the delay circuit is thus a very simple electrical and / or electronic circuit, which in particular has no processor.
  • the delay circuit can be made simple and inexpensive, so that the high cost of an expensive and expensive microcontroller can be saved.
  • the at least one delay circuit comprises at least one capacitor and / or at least one resistor. It is also possible if in addition an inductance is provided.
  • the at least one delay circuit comprises as electrical and / or electronic components exclusively at least one capacitor and / or at least one resistor. Due to the use of simple electronic components, such as a capacitor and a resistor, the delay circuit can be made simple and inexpensive.
  • the at least one electrical resistance heater is supplied by electric current in pulse width modulation.
  • the energizing of the at least two electrical resistance heating devices thus corresponds to the passage of current through the at least two electrical resistance heating devices during the switch-on of the pulse width modulated current.
  • At least one electrical resistance heater with a pulse-width-modulated current with respect to another electrical resistance heater can be supplied to the at least one delay circuit with a time delay.
  • the maximum current demand for the at least two electrical resistance heaters, in particular for all electrical resistance heaters, can thus be reduced at the beginning of the turn-on times.
  • the at least one electrical resistance heater is at least one PTC heater. It is particularly advantageous if the at least one resistance heater or a plurality of resistance heaters are combined to form a module and advantageously the electrical control unit can be connected or connected to this module. An electrical resistance heater is then, so to speak, a heating element of the module.
  • the at least two electrical resistance heating devices are electrically connected in parallel.
  • each of the electrical resistance heating devices connected in parallel is each connected to a parallel-current line and the parallel-current lines are connected to a central-current line.
  • a delay circuit is connected in series with the resistance heating devices connected in parallel in parallel-connected resistance heating devices.
  • At least two delay switching devices are connected in parallel and / or in series.
  • Method according to the invention for operating a heating device in particular for a motor vehicle air conditioning system, in particular comprising the steps of: passing electric current through at least two electrical resistance heating devices, preferably passing air through the heating device of the motor vehicle air conditioning system, generating heat energy by means of the at least two electrical resistance heating devices by applying the electrical energy is converted into heat energy, preferably transferring the thermal energy generated by the at least two electrical resistance heaters on the air to be heated, which is preferably passed through the motor vehicle air conditioning, so that the air heats, wherein when energizing the at least two electrical resistance heaters at least one electrical resistance heater delayed in time with respect to another electrical resistance heater Power is supplied to reduce the maximum current peak demand for the at least two electrical resistance heaters when energizing and / or switching on the at least two electrical resistance heaters, wherein the current is delayed analog and / or the current is delayed without a program or software is executed ,
  • the current in particular by means of at least one delay circuit, is delayed only analogously.
  • the current conducted by the at least two electrical resistance heating devices is pulse-width modulated and preferably the pulse width modulation is changed, in particular switching on and off times are changed in order to control and / or regulate the electrical power of the at least two electrical resistance heaters
  • the current is delayed by at least one delay circuit in each case for an electrical resistance heater.
  • the at least two electrical resistance heating devices are supplied with current in the high-voltage range, for example with a voltage of at least 60 V, 200 V or 300 V.
  • the motor vehicle air conditioning system expediently comprises at least one air guiding device, in particular an air flap, and / or at least one air duct and / or at least one heat exchanger through which the coolant of an internal combustion engine flows for heating the air to be supplied to the motor vehicle interior and / or a control unit.
  • cooling fins are arranged on the at least two electrical resistance heating devices in order to increase the surface for heating the air by means of the current conducted by the two electrical resistance heating devices.
  • PTC heaters Positive Temperature Coefficient
  • PTC heaters are conductive materials that have electrical resistance and are able to conduct electricity better at lower temperatures than at higher temperatures. Their electrical resistance thus increases with increasing temperature.
  • the PTC heater is generally made of ceramic, which is a PTC thermistor. This raises regardless of the boundary conditions - such. Applied voltage, nominal resistance, or air quantity at the PTC heater - a very uniform surface temperature at the PTC heater.
  • Fig. 1 is a switching arrangement with three formed as PTC heaters 2 concerned with heating the air guided by the automotive air conditioning system.
  • the PTC heaters 2 are connected in parallel and are powered by a power source 4, namely a vehicle electrical system 5 of the motor vehicle outside the motor vehicle air conditioning, with electric power.
  • the current source 4 provides current in pulse width modulation available.
  • the current in pulse width modulation is thereby passed from the power source 4 through central power lines 8 as power lines 6 to parallel flow lines 7.
  • the electric current in pulse width modulation is passed through the PTC heaters 2.
  • a delay circuit 3 is installed in each case.
  • the delay circuit 3 has no processor, i. H. Therefore, no program or software can be executed and is essentially equipped with simple electrical and / or electronic components, for example at least one capacitor and / or at least one resistor.
  • the delay circuit 3 is thus particularly simple and inexpensive to manufacture.
  • Fig. 3 is the temporal voltage curve of the guided by the three PTC heaters 2 current in pulse width modulation.
  • the time t is plotted on the abscissa, ie the horizontal axis.
  • the electric current is conducted in pulse modulation by the PTC heaters 2, that is, during a turn-on time T e current is passed through the PTC-Heinz wornen 2 and during a turn-off time T a no current is passed through the PTC heaters 2.
  • the Duration of the switch-on time T e and the switch-off time T a can be changed by the current source 4 and thereby the electrical heating power of the PTC heaters 2 is changed.
  • Fig. 2 the switching arrangement with the three PTC heaters 2 and the two delay circuits 3 is shown in a second embodiment.
  • the delay circuit 3 for the in Fig. 2 shown below PTC heater 2 not the central power line 8 is connected directly, but is connected to the parallel current line 7 between the delay circuit 3 and the central PTC heater 2.
  • the delay circuit 3 already receives delayed current, which has been delayed by the delay circuit 3 for the average PTC heater 2.
  • the delay times ⁇ t of the delay circuits 3 for the PTC center heater 2 and the lower PTC heater 2 are thus the same.

Landscapes

  • Air-Conditioning For Vehicles (AREA)
EP09290807.8A 2009-10-21 2009-10-21 Dispositif de chauffage notamment pour une climatisation de véhicule automobile Revoked EP2315493B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09290807.8A EP2315493B1 (fr) 2009-10-21 2009-10-21 Dispositif de chauffage notamment pour une climatisation de véhicule automobile
CN2010105120622A CN102118892A (zh) 2009-10-21 2010-10-19 特别用于汽车空调设备的加热装置
US12/908,490 US20110091190A1 (en) 2009-10-21 2010-10-20 Heater particularly for a motor vehicle hvac system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09290807.8A EP2315493B1 (fr) 2009-10-21 2009-10-21 Dispositif de chauffage notamment pour une climatisation de véhicule automobile

Publications (2)

Publication Number Publication Date
EP2315493A1 true EP2315493A1 (fr) 2011-04-27
EP2315493B1 EP2315493B1 (fr) 2017-05-10

Family

ID=41818722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09290807.8A Revoked EP2315493B1 (fr) 2009-10-21 2009-10-21 Dispositif de chauffage notamment pour une climatisation de véhicule automobile

Country Status (3)

Country Link
US (1) US20110091190A1 (fr)
EP (1) EP2315493B1 (fr)
CN (1) CN102118892A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011057105A1 (de) * 2011-12-28 2013-07-04 Webasto Ag Elektrische Fahrzeugheizvorrichtung
FR3008844A1 (fr) * 2013-07-22 2015-01-23 Valeo Systemes Thermiques Systeme de gestion de resistance chauffante a coefficient de temperature positif d'un equipement de chauffage electrique auxiliaire de vehicule automobile
CN105828461A (zh) * 2016-05-16 2016-08-03 苏州经贸职业技术学院 一种电加热设备关机延时降温控制电路及降温保护方法
EP2315493B1 (fr) 2009-10-21 2017-05-10 Mahle Behr France Rouffach S.A.S Dispositif de chauffage notamment pour une climatisation de véhicule automobile
WO2020127892A1 (fr) 2018-12-21 2020-06-25 Siqens Gmbh Système de brûleur ainsi que procédé pour fournir une énergie thermique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102991303A (zh) * 2012-11-15 2013-03-27 柳州易舟汽车空调有限公司 车用空调控制器
KR101518924B1 (ko) * 2013-12-10 2015-05-11 현대자동차 주식회사 친환경 자동차의 히터 제어장치 및 방법
DE102018200433A1 (de) * 2018-01-11 2019-07-11 Eberspächer Catem Gmbh & Co. Kg Elektrische Heizvorrichtung
DE102020203130A1 (de) * 2020-03-11 2021-09-16 Mahle International Gmbh Heizungsanordnung
DE102020117481A1 (de) 2020-07-02 2022-01-05 Audi Aktiengesellschaft Heizeinrichtung für ein Kraftfahrzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371295A2 (fr) * 1988-11-30 1990-06-06 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Elément chauffant radiant
EP1530405A2 (fr) * 1997-09-02 2005-05-11 Behr GmbH & Co. KG Dispositif de chauffage électrique, particulièrement pour véhicules automobiles.
US20070119847A1 (en) * 2005-11-25 2007-05-31 Hyundai Motor Company Multistage control system of positive temperature coefficient heater and method thereof

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JPS5629469A (en) 1979-08-16 1981-03-24 Sony Corp Switching control circuit
GB8412339D0 (en) * 1984-05-15 1984-06-20 Thorn Emi Domestic Appliances Heating apparatus
JPH081988Y2 (ja) * 1988-03-28 1996-01-24 日産自動車株式会社 車両用ウィンドウの加熱装置
US5153410A (en) * 1991-05-28 1992-10-06 Paccar Inc. Method and apparatus for heating the cylinder of a vehicle door lock utilizing timing means
DE4419006A1 (de) 1994-05-31 1995-12-07 Hella Kg Hueck & Co Pulsweitenmodulierter Schaltwandler zum Betrieb elektrischer Verbraucher
US6078024A (en) * 1997-05-27 2000-06-20 Denso Corporation Air conditioning apparatus having electric heating member integrated with heating heat exchanger
DE50000968D1 (de) 2000-05-23 2003-01-30 Catem Gmbh & Co Kg Elektrische Heizvorrichtung, insbesondere für den Einsatz in Kraftfahrzeugen
DE50200767D1 (de) 2002-10-30 2004-09-09 Catem Gmbh & Co Kg Elektrische Heizvorrichtung mit mehreren Heizelementen
DE102005002381A1 (de) * 2005-01-18 2006-08-10 Beru Ag Verfahren zum Betreiben einer Heizvorrichtung für ein Kraftfahrzeug
DE102006060828A1 (de) 2006-12-22 2008-06-26 Dr. Johannes Heidenhain Gmbh Umrichter mit einer Verzögerungsschaltung für PWM-Signale
EP1986322B1 (fr) 2007-04-24 2012-11-14 Eberspächer Controls GmbH & Co. KG Commutateur semi-conducteur avec circuit à retard intégré
EP2315493B1 (fr) 2009-10-21 2017-05-10 Mahle Behr France Rouffach S.A.S Dispositif de chauffage notamment pour une climatisation de véhicule automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371295A2 (fr) * 1988-11-30 1990-06-06 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Elément chauffant radiant
EP1530405A2 (fr) * 1997-09-02 2005-05-11 Behr GmbH & Co. KG Dispositif de chauffage électrique, particulièrement pour véhicules automobiles.
US20070119847A1 (en) * 2005-11-25 2007-05-31 Hyundai Motor Company Multistage control system of positive temperature coefficient heater and method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2315493B1 (fr) 2009-10-21 2017-05-10 Mahle Behr France Rouffach S.A.S Dispositif de chauffage notamment pour une climatisation de véhicule automobile
DE102011057105A1 (de) * 2011-12-28 2013-07-04 Webasto Ag Elektrische Fahrzeugheizvorrichtung
DE102011057105B4 (de) * 2011-12-28 2016-11-17 Webasto Ag Elektrische Fahrzeugheizvorrichtung
FR3008844A1 (fr) * 2013-07-22 2015-01-23 Valeo Systemes Thermiques Systeme de gestion de resistance chauffante a coefficient de temperature positif d'un equipement de chauffage electrique auxiliaire de vehicule automobile
WO2015010842A1 (fr) * 2013-07-22 2015-01-29 Valeo Systemes Thermiques Système de gestion de résistance chauffante à coefficient de température positif d'un équipement de chauffage électrique auxiliaire de véhicule automobile
CN105828461A (zh) * 2016-05-16 2016-08-03 苏州经贸职业技术学院 一种电加热设备关机延时降温控制电路及降温保护方法
CN105828461B (zh) * 2016-05-16 2022-04-26 苏州经贸职业技术学院 一种电加热设备关机延时降温控制电路及降温保护方法
WO2020127892A1 (fr) 2018-12-21 2020-06-25 Siqens Gmbh Système de brûleur ainsi que procédé pour fournir une énergie thermique
DE102018133529A1 (de) 2018-12-21 2020-06-25 Siqens Gmbh Brennersystem sowie Verfahren zum Bereitstellen von thermischer Energie

Also Published As

Publication number Publication date
US20110091190A1 (en) 2011-04-21
CN102118892A (zh) 2011-07-06
EP2315493B1 (fr) 2017-05-10

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