AT500664B1 - MOTOR CONTROL UNIT FOR AN INTERNAL COMBUSTION ENGINE - Google Patents

MOTOR CONTROL UNIT FOR AN INTERNAL COMBUSTION ENGINE Download PDF

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Publication number
AT500664B1
AT500664B1 AT18232005A AT18232005A AT500664B1 AT 500664 B1 AT500664 B1 AT 500664B1 AT 18232005 A AT18232005 A AT 18232005A AT 18232005 A AT18232005 A AT 18232005A AT 500664 B1 AT500664 B1 AT 500664B1
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AT
Austria
Prior art keywords
internal combustion
temperature
combustion engine
control unit
temperature sensor
Prior art date
Application number
AT18232005A
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German (de)
Other versions
AT500664A2 (en
AT500664A3 (en
Inventor
Rene Groessl
Original Assignee
Avl List Gmbh
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Filing date
Publication date
Application filed by Avl List Gmbh filed Critical Avl List Gmbh
Priority to AT18232005A priority Critical patent/AT500664B1/en
Publication of AT500664A2 publication Critical patent/AT500664A2/en
Priority to PCT/AT2006/000128 priority patent/WO2006105562A1/en
Priority to DE112006000599T priority patent/DE112006000599A5/en
Publication of AT500664A3 publication Critical patent/AT500664A3/en
Application granted granted Critical
Publication of AT500664B1 publication Critical patent/AT500664B1/en

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  • Combined Controls Of Internal Combustion Engines (AREA)

Description

2 AT 500 664 B12 AT 500 664 B1

Die Erfindung betrifft ein Verfahren zur temperaturabhängigen Steuerung einer Brennkraftmaschine, mit einer Motorsteuereinheit mit einem integrierten Temperatursensor.The invention relates to a method for temperature-dependent control of an internal combustion engine, having a motor control unit with an integrated temperature sensor.

Es ist bekannt, Temperatursensoren in integrierte Schaltkreise zu integrieren, z.B. aus der 5 US 6,893,154 B2. Dies gestattet es, die Temperatur von Prozessoren zu überwachen und eine thermische Überbeanspruchung von elektronischen Bauteilen zu vermeiden.It is known to integrate temperature sensors into integrated circuits, e.g. from the 5 US 6,893,154 B2. This allows to monitor the temperature of processors and avoid thermal overstressing of electronic components.

Aus der US 4,487,169 A ist eine elektronische Steuereinheit für eine Brennkraftmaschine bekannt, bei der zur Steuerung der Glühkerzen und eines Ventilators als Thermistoren ausgebil-io dete Temperatursensoren vorgesehen sind. Die Temperatursensoren sind in den Zylinderköpfen angeordnet und dienen zur Erfassung der Temperatur der Brennkraftmaschine. Nachteilig ist, dass zur Erfassung der Temperatur der Brennkraftmaschine ein zusätzlicher Aufwand und separate Bauelement erforderlich sind. 15 Aus den Druckschriften DE 197 12 445 A1, EP 1 111 491 A2 und DE 10 2005 001 501 A1 sind Steuerungssysteme für Brennkraftmaschinen bekannt, bei denen ein Temperatursensor die Temperatur der Steuereinheit überwacht, um eine Überhitzung der Steuereinheit zu vermeiden. Eine Überwachung des Temperaturverhaltens der Brennkraftmaschine ist nicht vorgesehen. 20 Aufgabe der Erfindung ist es, diese Nachteile zu vermeiden und auf möglichst einfache Weise eine temperaturabhängige Steuerung der Brennkraftmaschine zu realisieren.From US 4,487,169 A, an electronic control unit for an internal combustion engine is known in which are provided for controlling the glow plugs and a fan as thermistors ausgebil-io-ended temperature sensors. The temperature sensors are arranged in the cylinder heads and serve to detect the temperature of the internal combustion engine. The disadvantage is that an additional effort and separate component are required to detect the temperature of the internal combustion engine. From the documents DE 197 12 445 A1, EP 1 111 491 A2 and DE 10 2005 001 501 A1 control systems for internal combustion engines are known in which a temperature sensor monitors the temperature of the control unit to prevent overheating of the control unit. A monitoring of the temperature behavior of the internal combustion engine is not provided. 20 object of the invention is to avoid these disadvantages and to realize the simplest possible way a temperature-dependent control of the internal combustion engine.

Erfindungsgemäß wird dies dadurch erreicht, dass mittels des in die Motorsteuereinheit integrierten Temperatursensors das Temperaturverhalten der Brennkraftmaschine überwacht und 25 aufgrund der mit dem Temperatursensor gemessenen Temperatur Zündung und/oder Kraftstoffeinspritzmenge der Brennkraftmaschine gesteuert werden.According to the invention, this is achieved by monitoring the temperature behavior of the internal combustion engine by means of the temperature sensor integrated into the engine control unit and controlling ignition and / or fuel injection quantity of the internal combustion engine based on the temperature measured by the temperature sensor.

Das Temperaturverhalten der Motorsteuereinheit, vorzugsweise des Leistungsteils, wird durch Anpassung des Kühlkörpers so modifiziert, dass es mit dem Temperaturverhalten der Brenn-30 kraftmaschine korreliert.The temperature behavior of the engine control unit, preferably of the power unit, is modified by adaptation of the heat sink so that it correlates with the temperature behavior of the internal combustion engine.

Der Leistungsteil, beispielsweise der Leistungstransistor der Zündung, innerhalb der elektronischen Steuereinheit ist mit einem Kühlkörper versehen, dessen Temperaturverlauf (Aufheizkurve, bzw. stationäre Temperatur) möglichst synchron zum thermischen Motorverhalten ist. Die 35 mit dem Temperatursensor erfasste Temperatur kann gemessen und zur Korrektur des Zündzeitpunktes, bzw. der Kraftstoffeinspritzmenge der Brennkraftmaschine herangezogen werden.The power unit, for example, the power transistor of the ignition, within the electronic control unit is provided with a heat sink whose temperature profile (heating curve, or stationary temperature) is as synchronous as possible to the thermal engine behavior. The temperature detected with the temperature sensor can be measured and used to correct the ignition time or the fuel injection quantity of the internal combustion engine.

Der den Temperatursensor aufweisende Leistungsteil wird synchron oder proportional zur Brennkraftmaschine erwärmt und durch den Fahrtwind in gleicher Weise wie die Brennkraftma-40 schine abgekühlt. Auch die Umgebungstemperatur wird durch den integrierten Temperatursensor berücksichtigt.The temperature sensor having the power unit is heated synchronously or proportionally to the engine and cooled by the airstream in the same manner as the internal combustion engine 40. The ambient temperature is also taken into account by the integrated temperature sensor.

Die Figur zeigt schematisch eine elektronische Steuereinheit ECU mit einem durch einen Zündendstufentransistor gebildeten Leistungsteil L und einem auf dem Leistungsteil L applizierten 45 Temperatursensor T. Mit K ist ein mit dem Leistungsteil L verbundener Kühlkörper bezeichnet.The figure shows schematically an electronic control unit ECU with a formed by a Zündststententransistor power part L and a 45 applied to the power part L temperature sensor T. K is a connected to the power part L heat sink is called.

Durch Verändern der Dicke der Rückenplatte des Kühlkörpers K kann die gewünschte Zeitkonstante festgelegt werden. Über die Ausformung der Verrippung des Kühlkörpers K lässt sich das Temperaturniveau einstellen. 50By changing the thickness of the back plate of the heat sink K, the desired time constant can be set. About the shape of the ribbing of the heat sink K, the temperature level can be adjusted. 50

Die Temperatur des Temperatursensors muss nicht identisch sein mit der Temperatur der Brennkraftmaschine. Es genügt, wenn die Temperaturverhältnisse des Temperatursensors mit den Temperaturverhältnissen der Brennkraftmaschine korreliert. 55The temperature of the temperature sensor does not have to be identical to the temperature of the internal combustion engine. It is sufficient if the temperature conditions of the temperature sensor correlated with the temperature conditions of the internal combustion engine. 55

Claims (1)

3 AT 500 664 B1 Patentanspruch: Verfahren zur temperaturabhängigen Steuerung einer Brennkraftmaschine, mit einer Motorsteuereinheit (ECU) mit einem integrierten Temperatursensor (T), dadurch gekennzeichnet, dass 5 mittels des in die Motorsteuereinheit (ECU) integrierten Temperatursensors das Temperaturverhalten der Brennkraftmaschine überwacht und aufgrund der mit dem Temperatursensor (T) gemessenen Temperatur Zündung und/oder Kraftstoffeinspritzmenge der Brennkraftmaschine gesteuert werden. 10 Hiezu 1 Blatt Zeichnungen 15 20 25 30 35 40 45 50 55A method for temperature-dependent control of an internal combustion engine, comprising an engine control unit (ECU) with an integrated temperature sensor (T), characterized in that 5 by means of integrated into the engine control unit (ECU) temperature sensor monitors the temperature behavior of the internal combustion engine and due the measured with the temperature sensor (T) temperature ignition and / or fuel injection quantity of the internal combustion engine are controlled. 10 For 1 sheet of drawings 15 20 25 30 35 40 45 50 55
AT18232005A 2005-04-05 2005-11-08 MOTOR CONTROL UNIT FOR AN INTERNAL COMBUSTION ENGINE AT500664B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT18232005A AT500664B1 (en) 2005-11-08 2005-11-08 MOTOR CONTROL UNIT FOR AN INTERNAL COMBUSTION ENGINE
PCT/AT2006/000128 WO2006105562A1 (en) 2005-04-05 2006-03-30 Method for operating a spark-ignition internal combustion engine
DE112006000599T DE112006000599A5 (en) 2005-04-05 2006-03-30 Method for operating a spark-ignited internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT18232005A AT500664B1 (en) 2005-11-08 2005-11-08 MOTOR CONTROL UNIT FOR AN INTERNAL COMBUSTION ENGINE

Publications (3)

Publication Number Publication Date
AT500664A2 AT500664A2 (en) 2006-02-15
AT500664A3 AT500664A3 (en) 2007-02-15
AT500664B1 true AT500664B1 (en) 2007-06-15

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487169A (en) * 1982-04-03 1984-12-11 Khd-Canada, Inc. Electronic control unit for internal combustion engines
DE19712445A1 (en) * 1997-03-25 1998-10-01 Bosch Gmbh Robert System for controlling and / or regulating operating sequences in a motor vehicle
EP1111491A2 (en) * 1999-12-21 2001-06-27 Cummins Engine Company, Ltd. ECU temperature control
US6893154B2 (en) * 2002-02-19 2005-05-17 Sun Microsystems, Inc. Integrated temperature sensor
DE102005001501A1 (en) * 2004-01-13 2005-08-11 Denso Corp., Kariya Fuel-injection control apparatus for internal combustion engine, has injection limiters limiting specific injection side which restrains heat energy released of injector drive circuit when increase of temperature exceeds predetermined value

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487169A (en) * 1982-04-03 1984-12-11 Khd-Canada, Inc. Electronic control unit for internal combustion engines
DE19712445A1 (en) * 1997-03-25 1998-10-01 Bosch Gmbh Robert System for controlling and / or regulating operating sequences in a motor vehicle
EP1111491A2 (en) * 1999-12-21 2001-06-27 Cummins Engine Company, Ltd. ECU temperature control
US6893154B2 (en) * 2002-02-19 2005-05-17 Sun Microsystems, Inc. Integrated temperature sensor
DE102005001501A1 (en) * 2004-01-13 2005-08-11 Denso Corp., Kariya Fuel-injection control apparatus for internal combustion engine, has injection limiters limiting specific injection side which restrains heat energy released of injector drive circuit when increase of temperature exceeds predetermined value

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AT500664A2 (en) 2006-02-15
AT500664A3 (en) 2007-02-15

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