EP1113706A2 - Continuously adjustable method of temperature in an electrical heating device suitable for a vehicle - Google Patents

Continuously adjustable method of temperature in an electrical heating device suitable for a vehicle Download PDF

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Publication number
EP1113706A2
EP1113706A2 EP00126901A EP00126901A EP1113706A2 EP 1113706 A2 EP1113706 A2 EP 1113706A2 EP 00126901 A EP00126901 A EP 00126901A EP 00126901 A EP00126901 A EP 00126901A EP 1113706 A2 EP1113706 A2 EP 1113706A2
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EP
European Patent Office
Prior art keywords
temperature
transistor
electric heater
vehicle
control loop
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
EP00126901A
Other languages
German (de)
French (fr)
Other versions
EP1113706A3 (en
EP1113706B9 (en
EP1113706B1 (en
Inventor
Marvin Dr. Hamann
Ferdinand Dr. Kallmeyer
Otto Dipl.-Ing. Knittel
Ralph Dr. Trapp
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.)
Behr Hella Thermocontrol GmbH
Original Assignee
Behr Hella Thermocontrol GmbH
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Filing date
Publication date
Priority claimed from DE10010622A external-priority patent/DE10010622C2/en
Application filed by Behr Hella Thermocontrol GmbH filed Critical Behr Hella Thermocontrol GmbH
Publication of EP1113706A2 publication Critical patent/EP1113706A2/en
Publication of EP1113706A3 publication Critical patent/EP1113706A3/en
Application granted granted Critical
Publication of EP1113706B1 publication Critical patent/EP1113706B1/en
Publication of EP1113706B9 publication Critical patent/EP1113706B9/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B1/0288—Applications for non specified applications

Definitions

  • the invention relates to a device for the infinitely adjustable Temperature of an electric heater for a vehicle, which is Electric heaters in particular around one or more transistor-controlled PTC elements acts.
  • the invention has for its object a device for adjusting the To create temperature of an electric heater in a vehicle with which the temperature is infinitely variable without any significant circuitry effort or can be adjusted almost continuously.
  • each transistor is controlled in such a way that the transistors are kept at predetermined temperatures.
  • the The operating point of the transistors is therefore determined by their temperatures.
  • the chip temperature control loop according to the invention is advantageously as subordinate control loop in a main control loop for controlling the middle one Radiator temperature integrated.
  • the main control loop is designed such that it is connected to the underlying temperature control loops setpoints for the temperature of the transistor, of its housing or its substrate, which are identical to each other, are the same or different in groups to determine the average temperature of the Electric heater and / or a temperature gradient to be applied to the electric heater to regulate.
  • This allows the electric heater to be any Adjust adjustable temperature gradients.
  • Another advantage of the invention is that the regulation of the Chip temperatures enables parallel operation of several transistors, at which automatically dissipates the power loss evenly on the transistors distributed.
  • the elements of the inner control loop or the inner control loops can lie in the transistor housing and / or outside of the transistor housing.

Landscapes

  • Air-Conditioning For Vehicles (AREA)
  • Control Of Temperature (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

One or more heating elements and transistors are fed with electrical energy. Each transistor has a temperature sensor for detecting the temperature of the transistor, of its casing or of its substrate and is wired in a temperature control circuit to a temperature sensor allocated to it and a controller.

Description

Die Erfindung betrifft eine Vorrichtung zur stufenlosen Verstellbarkeit der Temperatur eines Elektroheizers für ein Fahrzeug, wobei es sich bei dem Elektroheizer insbesondere um ein oder mehrere transistorgesteuerte PTC-Elemente handelt.The invention relates to a device for the infinitely adjustable Temperature of an electric heater for a vehicle, which is Electric heaters in particular around one or more transistor-controlled PTC elements acts.

Bekannt sind Vorrichtungen zur Verstellbarkeit einer Temperatur eines Elektroheizers im KFZ, entsprechend der DE 19733045 C1, die durch Erfassen und Regeln der Transistorströme eine Arbeitspunktstabilisierung erreichen. Diese Vorrichtungen haben den Nachteil, dass der Strom noch keine Aussage über die tatsächliche Transistortemperatur liefert und ferner die zur Messung notwendigen Shunts toleranzbehaftet und kostenintensiv sind.Devices for adjusting the temperature of an electric heater are known in the vehicle, according to DE 19733045 C1, by detecting and Regulating the transistor currents to achieve an operating point stabilization. This Devices have the disadvantage that the current has no information about provides the actual transistor temperature and also those necessary for the measurement Shunts are tolerant and costly.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Verstellen der Temperatur eines Elektroheizers in einem Fahrzeug zu schaffen, mit dem sich die Temperatur ohne nennenswerten schaltungstechnischen Aufwand stufenlos bzw. quasi stufenlos verstellen läßt.The invention has for its object a device for adjusting the To create temperature of an electric heater in a vehicle with which the temperature is infinitely variable without any significant circuitry effort or can be adjusted almost continuously.

Zur Lösung dieser Aufgabe wird mit der Erfindung eine Vorrichtung zur kontinuierlichen Verstellbarkeit der Temperatur eines Elektroheizers in einem Fahrzeug vorgeschlagen, bei der ein oder mehrere Heizelemente über ein oder mehrere Transistoren insbesondere stufenlos mit elektrischer Energie versorgt werden, wobei jedem Transistor ein Temperatursensor zur Ermittlung der Temperatur des Transistors, seines Gehäuses oder seines Substrats zugeordnet ist. Bei dieser Vorrichtung ist erfindungsgemäß vorgesehen,

  • dass jeder Transistor mit dem ihm zugeordneten Temperatursensor und einem Regler zu einem Temperaturregelkreis verschaltet ist und
  • dass die vom Temperatursensor ermittelte Temperatur auf einen vorgebbaren Wert regelbar ist.
To achieve this object, the invention proposes a device for continuously adjusting the temperature of an electric heater in a vehicle, in which one or more heating elements are supplied with electrical energy, in particular continuously, via one or more transistors, each transistor having a temperature sensor for determining the temperature of the transistor, its housing or its substrate is assigned. According to the invention, this device provides
  • that each transistor is connected to a temperature control circuit with the temperature sensor assigned to it and a controller, and
  • that the temperature determined by the temperature sensor can be regulated to a predeterminable value.

Nach der Erfindung erfolgt also die Ansteuerung jedes Transistors dergestalt, dass die Transistoren auf vorgebbaren Temperaturen gehalten werden. Der Arbeitspunkt der Transistoren bestimmt sich also nach ihren Temperaturen.According to the invention, each transistor is controlled in such a way that the transistors are kept at predetermined temperatures. The The operating point of the transistors is therefore determined by their temperatures.

Vorteilhafterweise ist der erfindungsgemäße Chiptemperaturregelkreis als unterlagerter Regelkreis in einem Hauptregelkreis zur Regelung der mittleren Heizkörpertemperatur eingebunden.The chip temperature control loop according to the invention is advantageously as subordinate control loop in a main control loop for controlling the middle one Radiator temperature integrated.

Vorteilhaft ist es, wenn der Hauptregelkreis derart ausgelegt ist, dass er an die unterlagerten Temperaturregelkreise Sollwerte für die Temperatur des Transistors, seines Gehäuses oder seines Substrats vorgibt, die miteinander gleich, gruppenweise gleich oder unterschiedlich sind, um die mittlere Temperatur des Elektroheizers und/oder einen dem Elektroheizer aufzuprägenden Temperaturgradienten zu regeln. Hierdurch lässt sich der Elektroheizer auf einen beliebig einstellbaren Temperaturgradienten ausregeln. Bei Einsatz eines derart geregelten Elektroheizers in die Klimaanlage eines Fahrzeuges mit z.B. fahrer- und beifahrerseitig getrennt vorgebbaren Temperaturen kann somit das aufgrund der Fahrer-/Beifahrerwünsche erforderliche Temperaturgefälle des Luftstromes durch den Elektroheizer aufgebaut werden, so dass die bei diesen Klimaanlagen erforderliche zweite Mischklappe mit Stellmotor (luftseitige Temperaturregelung) oder das zweite Heizmedienfluss-Steuerventil mit Stellglied (wasserseitige Temperaturregelung) nebst der Verkabelung entfallen kann.It is advantageous if the main control loop is designed such that it is connected to the underlying temperature control loops setpoints for the temperature of the transistor, of its housing or its substrate, which are identical to each other, are the same or different in groups to determine the average temperature of the Electric heater and / or a temperature gradient to be applied to the electric heater to regulate. This allows the electric heater to be any Adjust adjustable temperature gradients. When using such a regulated Electric heater in the air conditioning system of a vehicle with e.g. driver and Temperatures that can be specified separately on the passenger side can therefore be due to the driver / front passenger requests the required temperature gradient of the air flow be built up by the electric heater, so that in these air conditioners required second mixing flap with servomotor (air-side temperature control) or the second heating medium flow control valve with actuator (water-side temperature control) in addition to the cabling can be omitted.

Ein weiterer Vorteil der Erfindung ist darin zu sehen, dass die Regelung der Chiptemperaturen einen Parallelbetrieb mehrerer Transistoren ermöglicht, bei dem sich automatisch die Verlustleistung gleichmäßig auf die Transistoren verteilt. Another advantage of the invention is that the regulation of the Chip temperatures enables parallel operation of several transistors, at which automatically dissipates the power loss evenly on the transistors distributed.

Die Elemente des inneren Regelkreises bzw. der inneren Regelkreise können im Transistorgehäuse und/oder auch außerhalb des Transistorgehäuses liegen.The elements of the inner control loop or the inner control loops can lie in the transistor housing and / or outside of the transistor housing.

Ein Ausführungsbeispiel der Erfindung ergibt sich aus dem Schaltkreis gemäß der Zeichnung, dessen einzelne Komponenten entsprechend bezeichnet sind. Hierbei ist zu bedenken, dass nur ein unterlagerter Transistortemperatur-Regelkreis dargestellt ist. Im Falle des Aufbaus des Elektroheizers mit mehreren Heizelementen und mehreren Transistoren sind die Einzel-Regelkreise untereinander parallel geschaltet und dem übergeordneten Hauptregelkreis unterlagert.An embodiment of the invention results from the circuit according to the drawing, the individual components of which are labeled accordingly. It should be borne in mind here that only a subordinate transistor temperature control circuit is shown. In case of installing the electric heater with several heating elements and several transistors are the individual control loops connected in parallel with each other and the parent Subordinate control loop.

Claims (5)

Vorrichtung zur kontinuierlichen Verstellbarkeit einer Temperatur eines Elektroheizers im KFZ, mit mindestens einem Heizelement und mindestens einem Transistor zum Versorgen von mindestens einem Heizelement mit elektrischer Energie, wobei jedem Transistor ein Temperatursensor zur Ermittlung der Temperatur des Transistors, seines Gehäuses und/oder seines Substrats zugeordnet ist,
dadurch gekennzeichnet , dass jeder Transistor mit dem ihm zugeordneten Temperatursensor und einem Regler zu einem Temperaturregelkreis verschaltet ist und dass die vom Temperatursensor ermittelte Temperatur auf einen vorgebbaren Wert regelbar ist. Device for continuously adjusting a temperature of an electric heater in a vehicle, with at least one heating element and at least one transistor for supplying at least one heating element with electrical energy, wherein each transistor is assigned a temperature sensor for determining the temperature of the transistor, its housing and / or its substrate,
characterized , that each transistor is connected to a temperature control circuit with the temperature sensor assigned to it and a controller, and that the temperature determined by the temperature sensor can be regulated to a predeterminable value. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Temperaturregelkreise als unterlagerte Regelkreise in einem Hauptregelkreis eingebunden sind.Apparatus according to claim 1, characterized in that the temperature control loops as subordinate control loops in a main control loop are involved. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Hauptregelkreis derart ausgelegt ist, dass er an die unterlagerten Temperaturregelkreise Sollwerte für die Temperatur des Transistors, seines Gehäuses und/oder seines Substrats vorgibt, die miteinander gleich, gruppenweise gleich oder unterschiedlich sind, um die mittlere Temperatur des Elektroheizers und/oder einen dem Elektroheizer aufzuprägenden Temperaturgradienten zu regeln.Apparatus according to claim 2, characterized in that the main control loop is designed in such a way that it is connected to the subordinate temperature control loops Setpoints for the temperature of the transistor, its housing and / or its substrate, which are the same as each other, groups are the same or different to make the middle one Temperature of the electric heater and / or one of the electric heater to regulate temperature gradients to be impressed. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Regelung der Chiptemperaturen einen Parallelbetrieb mehrerer Transistoren ermöglicht, bei dem sich automatisch die gewünschte Temperaturverteilung gleichmäßig auf die Transistoren verteilt.Device according to one of claims 1 to 3, characterized in that that the regulation of the chip temperatures a parallel operation of several Transistors allows you to automatically find the desired one Temperature distribution evenly distributed across the transistors. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Komponenten eines Temperaturregelkreises im Transistorgehäuse oder auch außerhalb liegen können.Device according to one of claims 1 to 3, characterized in that that the components of a temperature control loop in the transistor package or can be outside.
EP20000126901 1999-12-29 2000-12-08 Continuously adjustable method of temperature in an electrical heating device suitable for a vehicle Expired - Lifetime EP1113706B9 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19963558 1999-12-29
DE19963558 1999-12-29
DE10010622A DE10010622C2 (en) 1999-12-29 2000-03-03 Device for continuously adjusting the temperature of an electric heater for a vehicle
DE10010622 2000-03-03

Publications (4)

Publication Number Publication Date
EP1113706A2 true EP1113706A2 (en) 2001-07-04
EP1113706A3 EP1113706A3 (en) 2002-05-02
EP1113706B1 EP1113706B1 (en) 2005-10-26
EP1113706B9 EP1113706B9 (en) 2006-03-15

Family

ID=26004691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000126901 Expired - Lifetime EP1113706B9 (en) 1999-12-29 2000-12-08 Continuously adjustable method of temperature in an electrical heating device suitable for a vehicle

Country Status (2)

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EP (1) EP1113706B9 (en)
DE (1) DE50011436D1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19733045C1 (en) 1997-07-31 1998-07-30 Fahrzeugklimaregelung Gmbh Electric heating for vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3330786C2 (en) * 1983-08-26 1986-04-30 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Heatable door cylinders, in particular on motor vehicle doors
DE3442350A1 (en) * 1984-11-20 1986-06-05 Rudolf 6000 Frankfurt Querfurth Heat exchange system for heating an electrically driven road vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19733045C1 (en) 1997-07-31 1998-07-30 Fahrzeugklimaregelung Gmbh Electric heating for vehicle

Also Published As

Publication number Publication date
DE50011436D1 (en) 2005-12-01
EP1113706A3 (en) 2002-05-02
EP1113706B9 (en) 2006-03-15
EP1113706B1 (en) 2005-10-26

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