DE10116485B4 - Device and method for determining the engine speed of an internal combustion engine - Google Patents
Device and method for determining the engine speed of an internal combustion engine Download PDFInfo
- Publication number
- DE10116485B4 DE10116485B4 DE2001116485 DE10116485A DE10116485B4 DE 10116485 B4 DE10116485 B4 DE 10116485B4 DE 2001116485 DE2001116485 DE 2001116485 DE 10116485 A DE10116485 A DE 10116485A DE 10116485 B4 DE10116485 B4 DE 10116485B4
- Authority
- DE
- Germany
- Prior art keywords
- engine
- speed
- sensor
- pressure
- determining
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Vorrichtung
zum Ermitteln der Motordrehzahl eines Verbrennungsmotors mit:
(a)
einer Motorsteuerung (2);
(b) einem zum Erfassen eines in mindestens
einem Saugrohr (6) des Motors vorhandenen Saugrohrdrucks vorgesehenen
Drucksensor (4), von dem die Motorsteuerung (2) entsprechende Drucksignale
erhält,
auf deren Basis die Motordrehzahl ermittelbar ist; und
(c)
einem zum Erfassen einer Drehzahl der Kurbelwelle (14) des Motors
vorgesehenen ersten Drehzahlsensor (12), der mit der Motorsteuerung
(2) in Verbindung steht, um die Motordrehzahl im Normalbetrieb des
Motors zu ermitteln, wobei der Drucksensor (4) zum Ermitteln der
Motordrehzahl im Notbetrieb vorgesehen ist und wobei der erste Drehzahlsensor
(12) ein an der Kurbelwelle (14) vorgesehenes Signal-Geberrad (16)
mit einer vorbestimmten Zähnezahl
aufweist und die Motorsteuerung (2) derart ausgebildet ist, dass
eine auf Basis der Drucksignale ermittelte Zeit für einen
Motorzyklus (tZ) auf die Zähnezahl
des Signal-Geberrades (16) des ersten Drehzahlsensors (12) geteilt
wird, um im Notbetrieb die im Normalbetrieb mit dem...Device for determining the engine speed of an internal combustion engine with:
(a) a motor controller (2);
(b) a pressure sensor (4) provided for detecting an intake manifold pressure present in at least one suction pipe (6) of the engine, from which the engine control (2) receives corresponding pressure signals on the basis of which the engine speed can be determined; and
(c) a first speed sensor (12) provided for detecting a rotational speed of the crankshaft (14) of the engine and communicating with the engine controller (2) for detecting the engine speed during normal operation of the engine, the pressure sensor (4) being at Determining the engine speed is provided in emergency mode and wherein the first speed sensor (12) provided on the crankshaft (14) signal encoder wheel (16) having a predetermined number of teeth and the motor controller (2) is designed such that one based on the pressure signals determined time for a motor cycle (t Z ) to the number of teeth of the signal generator wheel (16) of the first speed sensor (12) is divided to in normal operation with the ...
Description
Die vorliegende Erfindung betrifft eine Vorrichtung sowie ein Verfahren zum Ermitteln der Motordrehzahl eines Verbrennungsmotors, insbesondere eines Vier-Takt-Motors, um einen Notbetrieb des Motors zu ermöglichen.The The present invention relates to an apparatus and a method for determining the engine speed of an internal combustion engine, in particular a four-stroke engine to allow emergency operation of the engine.
Üblicherweise wird die Motordrehzahl mit Hilfe eines an der Kurbelwelle des Motors vorgesehenen Drehzahlsensors ermittelt. Beim Ausfall des Kurbelwellen-Sensors kann in manchen im Stand der Technik bekannten Vorrichtungen die Drehzahl aus einem zweiten, an der Nockenwelle des Motors vorgesehenen Drehzahlsensor ermittelt werden. Üblicherweise kann jedoch bei diesen bekannten Vorrichtungen beispielsweise beim Ausfall des Nockenwellen-Sensors kein Ersatzsignal gebildet werden, was den Motorstillstand zur Folge hat.Usually The engine speed is determined by means of a on the crankshaft of the engine determined speed sensor determined. In case of failure of the crankshaft sensor can in some known in the prior art devices the Speed from a second, provided on the camshaft of the engine Speed sensor can be determined. Usually, however, at these known devices, for example, the failure of the camshaft sensor no substitute signal are formed, resulting in engine stall Has.
In
der
Die
in der
Aus
dem japanischen Abstract JP 58-071463 A ist ein Verfahren zur Ermittlung
ganzzahliger Umdrehungen eines Motors mittels eines Drucksensors
bekannt. Zum weiteren technischen Hintergrund wird auf die
Die
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zur Ermittlung der Motordrehzahl eines Verbrennungsmotors zur Verfügung zu stellen, mit der/dem ein Notbetrieb des Motors bei einem Ausfall der normalerweise verwendeten Drehzahlsensorik gewährleistet wird. Diese Aufgabe wird mit den Merkmalen der unabhängigen Patentansprüche gelöst.Of the present invention is based on the object, a device and a method for determining the engine speed of an internal combustion engine to disposal to provide with the / an emergency operation of the engine in case of failure the normally used speed sensor ensures becomes. This object is achieved with the features of the independent claims.
Die Erfindung geht dabei von dem Grundgedanken aus, den Saugrohrdruck in mindestens einem Saugrohr des Motors zu erfassen, ein dem Druck entsprechendes Drucksignal zu erzeugen und einer Motorsteuerung zuzuführen, die auf Basis des Drucksignals die Motordrehzahl ermittelt. Entsprechend einer bevorzugten Ausführungsform der vorliegenden Erfindung erfolgt die Ermittlung der Motordrehzahl dadurch, daß die Motorsteuerung auf Basis der Drucksignale eine Zeitdauer für einen Motorzyklus (beim Vier-Takt-Motor zwei Umdrehungen (720° Kurbelwinkel); beim Zwei-Takt-Motor eine Umdrehung (360° Kurbelwinkel)) ermittelt, die auf eine Zähnezahl eines an der Kurbelwelle des Motors vorgesehenen Signal-Geberrades geteilt wird, um im Notbetrieb die während eines Normalbetriebs gemessenen Zeitintervalle durch Berechnung zu ermitteln.The The invention is based on the basic idea of the intake manifold pressure in at least one intake manifold of the engine to capture the pressure to generate corresponding pressure signal and a motor control supply, which determines the engine speed based on the pressure signal. Corresponding a preferred embodiment The present invention determines the engine speed in that the Motor control based on the pressure signals a period of time for a Engine cycle (four-stroke engine two revolutions (720 ° crank angle); in the two-stroke engine one revolution (360 ° crank angle)), the on a number of teeth a provided on the crankshaft of the engine signal encoder wheel in emergency mode during normal operation to determine measured time intervals by calculation.
Erfindungsgemäß wird also der gemessene Saugrohrdruck ausgewertet und zu einem Drehzahlsignal aufbereitet. Dadurch kann eine Ermittlung der Motordrehzahl selbst beim Ausfall üblicherweise verwendeter Drehzahlsensoren gewährleistet und zumindest ein Motornotbetrieb ermöglicht werden. Die der Erfindung zugrunde liegende Grundidee ist jedoch auch generell zur Ermittlung der Motordrehzahl eines Verbrennungsmotors im Normalbetrieb geeignet.Thus, according to the invention the measured intake manifold pressure evaluated and a speed signal edited. This allows a determination of the engine speed itself in case of failure usually used speed sensors guaranteed and at least one engine emergency operation are enabled. The invention However, the underlying basic idea is also generally for identification the engine speed of an internal combustion engine in normal operation suitable.
Die vorliegende Erfindung wird nachstehend unter Bezugnahme auf die Zeichnungenanhand zweier bevorzugter Ausführungsformen näher beschrieben. Es zeigen:The present invention will be described below with reference to the drawings two preferred embodiments. Show it:
Entsprechend
der schematischen Darstellung gemäß
Der
Saugrohr-Drucksensor
Aus
der der Motorsteuerung
Die
erfindungsgemäße Vorrichtung
sowie das erfindungsgemäße Verfahren
zum Ermitteln der Motordrehzahl eines Verbrennungsmotors ist insbesondere
vorgesehen, um bei Ausfall der üblichen Drehzahlsensoren
einen Notbetrieb des Motors weiter zu ermöglichen. Für einen derartigen Fall ist
entsprechend der Darstellung gemäß
Wie
bereits vorstehend beschrieben, sind auch Drehzahl-Erfassungssysteme
bekannt, bei denen neben dem ersten Drehzahlsensor an der Kurbelwelle
Bei
einem Ausfall beider Drehzahlsensoren
Mit
dieser in
In
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001116485 DE10116485B4 (en) | 2001-04-03 | 2001-04-03 | Device and method for determining the engine speed of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001116485 DE10116485B4 (en) | 2001-04-03 | 2001-04-03 | Device and method for determining the engine speed of an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10116485A1 DE10116485A1 (en) | 2002-10-10 |
DE10116485B4 true DE10116485B4 (en) | 2007-01-11 |
Family
ID=7680152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2001116485 Expired - Fee Related DE10116485B4 (en) | 2001-04-03 | 2001-04-03 | Device and method for determining the engine speed of an internal combustion engine |
Country Status (1)
Country | Link |
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DE (1) | DE10116485B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10344773B3 (en) | 2003-09-26 | 2005-05-25 | Siemens Ag | Method and device for determining a phase position between a crankshaft and a camshaft of an internal combustion engine |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2618970A1 (en) * | 1975-04-30 | 1976-11-04 | Rca Corp | SPEEDOMETER FOR COMBUSTION ENGINES |
DE2617069A1 (en) * | 1976-04-17 | 1977-10-27 | Volkswagenwerk Ag | IC engine revolution rate measurement - uses press. variations in air intake system to produce electric signal proportional to angular velocity |
WO1987005971A1 (en) * | 1986-04-04 | 1987-10-08 | Robert Bosch Gmbh | Process for identifying the working cycle of a cylinder in an internal combustion engine |
DE3828735A1 (en) * | 1987-08-28 | 1989-03-09 | Fuji Heavy Ind Ltd | DEVICE FOR MONITORING THE IGNITION TIMING IN AN INTERNAL COMBUSTION ENGINE |
DE3828733A1 (en) * | 1987-08-28 | 1989-03-09 | Fuji Heavy Ind Ltd | DEVICE FOR MONITORING THE IGNITION TIMING IN AN INTERNAL COMBUSTION ENGINE |
DE3932073A1 (en) * | 1988-09-27 | 1990-04-05 | Mitsubishi Electric Corp | IGNITION CONTROLLER FOR INTERNAL COMBUSTION ENGINES |
DE4220828A1 (en) * | 1991-06-26 | 1993-01-21 | Fuji Heavy Ind Ltd | CRANK ANGLE DETECTION SYSTEM FOR A TWO-STROKE ENGINE |
DE4125677A1 (en) * | 1991-08-02 | 1993-02-04 | Audi Ag | Fault-tolerant controller for four-stroke combustion engine - extracts different evaluation and control pulse widths from modified camshaft pulse sequence for emergency running |
DE19638010A1 (en) * | 1996-09-18 | 1998-03-19 | Bosch Gmbh Robert | Method for determining the phase position in a 4-stroke internal combustion engine |
DE19725090A1 (en) * | 1997-06-13 | 1998-12-17 | Bosch Gmbh Robert | Method for determining the speed of an internal combustion engine |
DE19907959A1 (en) * | 1998-02-27 | 1999-09-02 | Cummins Engine Co Inc | Speed and rotational angle detection system for combustion engine crankshaft |
DE19804816A1 (en) * | 1997-02-13 | 2000-09-28 | Honda Motor Co Ltd | Clock identification unit for a four-stroke engine |
DE10026267A1 (en) * | 1999-05-28 | 2001-02-15 | Honda Motor Co Ltd | Travel detector for four-stroke engine, discriminates travel based on phase and rotation period of crankshaft |
-
2001
- 2001-04-03 DE DE2001116485 patent/DE10116485B4/en not_active Expired - Fee Related
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2618970A1 (en) * | 1975-04-30 | 1976-11-04 | Rca Corp | SPEEDOMETER FOR COMBUSTION ENGINES |
DE2617069A1 (en) * | 1976-04-17 | 1977-10-27 | Volkswagenwerk Ag | IC engine revolution rate measurement - uses press. variations in air intake system to produce electric signal proportional to angular velocity |
WO1987005971A1 (en) * | 1986-04-04 | 1987-10-08 | Robert Bosch Gmbh | Process for identifying the working cycle of a cylinder in an internal combustion engine |
DE3828735A1 (en) * | 1987-08-28 | 1989-03-09 | Fuji Heavy Ind Ltd | DEVICE FOR MONITORING THE IGNITION TIMING IN AN INTERNAL COMBUSTION ENGINE |
DE3828733A1 (en) * | 1987-08-28 | 1989-03-09 | Fuji Heavy Ind Ltd | DEVICE FOR MONITORING THE IGNITION TIMING IN AN INTERNAL COMBUSTION ENGINE |
DE3932073A1 (en) * | 1988-09-27 | 1990-04-05 | Mitsubishi Electric Corp | IGNITION CONTROLLER FOR INTERNAL COMBUSTION ENGINES |
DE4220828A1 (en) * | 1991-06-26 | 1993-01-21 | Fuji Heavy Ind Ltd | CRANK ANGLE DETECTION SYSTEM FOR A TWO-STROKE ENGINE |
DE4125677A1 (en) * | 1991-08-02 | 1993-02-04 | Audi Ag | Fault-tolerant controller for four-stroke combustion engine - extracts different evaluation and control pulse widths from modified camshaft pulse sequence for emergency running |
DE19638010A1 (en) * | 1996-09-18 | 1998-03-19 | Bosch Gmbh Robert | Method for determining the phase position in a 4-stroke internal combustion engine |
DE19804816A1 (en) * | 1997-02-13 | 2000-09-28 | Honda Motor Co Ltd | Clock identification unit for a four-stroke engine |
DE19725090A1 (en) * | 1997-06-13 | 1998-12-17 | Bosch Gmbh Robert | Method for determining the speed of an internal combustion engine |
DE19907959A1 (en) * | 1998-02-27 | 1999-09-02 | Cummins Engine Co Inc | Speed and rotational angle detection system for combustion engine crankshaft |
DE10026267A1 (en) * | 1999-05-28 | 2001-02-15 | Honda Motor Co Ltd | Travel detector for four-stroke engine, discriminates travel based on phase and rotation period of crankshaft |
Non-Patent Citations (3)
Title |
---|
JP 10227252 A.,In: Patent Abstracts of Japan * |
JP 58071463 A., In: Patent Abstracts of Japan * |
JP 58-071463 A., In: Patent Abstracts of Japan |
Also Published As
Publication number | Publication date |
---|---|
DE10116485A1 (en) | 2002-10-10 |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |