EP1132613A2 - Verfahren zum Starten einer Brennkraftmaschine - Google Patents
Verfahren zum Starten einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1132613A2 EP1132613A2 EP01104950A EP01104950A EP1132613A2 EP 1132613 A2 EP1132613 A2 EP 1132613A2 EP 01104950 A EP01104950 A EP 01104950A EP 01104950 A EP01104950 A EP 01104950A EP 1132613 A2 EP1132613 A2 EP 1132613A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- speed
- fuel
- injection
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N99/00—Subject matter not provided for in the other groups of this subclass
- F02N99/002—Starting combustion engines by ignition means
- F02N99/006—Providing a combustible mixture inside the cylinder
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/061—Introducing corrections for particular operating conditions for engine starting or warming up the corrections being time dependent
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3827—Common rail control systems for diesel engines
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
-
- 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
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/31—Control of the fuel pressure
Definitions
- the invention relates to a method for starting an internal combustion engine, in their combustion chambers fuel from one Pressure accumulator is injected.
- Fuel in an internal combustion engine in its combustion chambers is injected from a pressure accumulator, the Injection duration and the start of injection selected appropriately.
- a known idle controller is usually used corresponding initialization values, which then independently in a known manner by acting on the manipulated variables Injection duration and start of injection the start process and regulates the subsequent idling.
- the invention has for its object a method for Starting an internal combustion engine with fuel in its combustion chambers is injected from a pressure accumulator, to indicate with the at all temperatures, especially in low temperature ranges, improved starting behavior without having to measure the temperature.
- the invention is based on the knowledge that for Starting behavior at low temperatures the viscosity of the Fuel is crucial for an injection amount of fuel introduced into the combustion chambers.
- the viscosity of diesel fuel increases Fuel at low temperatures.
- system repercussions by keeping the other injection parameters constant, in particular the control duration of the injection valves and the start of injection switched off. This can make a systematic Adjustment of the operating point of the injection valves under Other parameters determining the operating point are kept constant.
- the manipulated variable of the binary controller used is the fuel pressure in the pressure accumulator, the monitored controlled variable is the speed behavior of the internal combustion engine, especially a speed gradient.
- the timing of the starting process is in time series in Fig. 1 shown.
- FIG. 2 shows the control circuit for operating point control in a block diagram of the injectors.
- the internal combustion engine is designated with M.
- N the speed N is monitored.
- a default member P provides one Default value for the fuel pressure FUP, which is then at the Internal combustion engine M is set.
- B On the internal combustion engine M further operating parameters B are set, in particular the activation period TI and the start of injection SOI for the injectors. Control of the internal combustion engine M with these parameters is from a not shown Spreading device taken over, in which also in Fig. 2nd shown control loop can be implemented as a program module can.
- FUP is supplied by an integral member I. Value increased.
- the integral element I receives at its input fed a period of time.
- the engine is at the starter speed N_Starter driven.
- the speed N remains of the internal combustion engine M on the starter speed N_Starter.
- the internal combustion engine M produces no torque Speed does not increase.
- the internal combustion engine M now generates for the first time a torque, the speed N begins to increase.
- This Rise shows that the internal combustion engine M start begins.
- the operating point of the injection is therefore one desired area in which a starting process take place can. Therefore the working point is kept by not only as before the other injection parameters, in particular the activation duration of the TI of the injection valves and the start of injection SOI, but also the fuel pressure FUP in the Pressure accumulator can be kept constant.
- the working point is maintained until the internal combustion engine M at the time t3 reaches idle speed.
- the internal combustion engine operated with the conventional idle control, in which the known variation of the control period TI Injectors and the start of injection SOI takes place. Further the fuel pressure FUP in the pressure accumulator to the for the idle value provided.
- the controller working for starting the internal combustion engine takes a non-linear control of the working point accordingly that the fuel pressure FUP in the Pressure accumulator is used and the binary as control variable Differentiate whether the internal combustion engine has an induced torque applies, is used.
- This controlled variable corresponds ultimately a binary signal that indicates whether a Fuel injection with combustion takes place. Because only then the speed N of the internal combustion engine M increases Internal combustion engine M shows a change in its speed N, can directly monitor the speed N or at its first time derivative can be recognized. It can therefore both the speed N as well as its first time derivative can be used as a control variable.
- injection parameters are due to this compensation chosen so that for normal environmental conditions, i.e. a warm internal combustion engine M, are optimal.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
- Fig. 1
- Zeitreihen verschiedener Betriebsparameter einer Brennkraftmaschine während eines Startvorganges und
- Fig. 2
- ein Blockschaltbild eines binären Reglers zur Durchführung des Verfahrens zum Starten einer Brennkraftmaschine.
Claims (5)
- Verfahren zum Starten einer Brennkraftmaschine, in deren Brennräume Kraftstoff aus einem Druckspeicher eingespritzt wird, bei dema) der Kraftstoffdruck (FUP) im Druckspeicher mit Beginn eines Startvorganges auf einen Startwert gesetzt wird,b) die Brennkraftmaschine (M) mit einer Anlasserdrehzahl (N_Starter) gestartet wird,c) die Zeitdauer erfasst wird, in der die Drehzahl (N) der Brennkraftmaschine (M) auf dem Niveau der Anlasserdrehzahl (N_Starter) verharrt, undd) bei Überschreiten einer vorbestimmten Zeitdauer der Kraftstoffdruck (FUP) im Druckspeicher gesteigert wird, bis die Brennkraftmaschine (M) einen bestimmten Anstieg ihrer Drehzahl (N) zeigt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass während der Stufen c) und d) die übrigen Einspritzparameter, insbesondere die Dauer (TI) und der Beginn (SOI) der Einspritzungen, konstant auf vorgegebenen Werten gehalten werden.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Steigerung des Kraftstoffdruckes (FUP) von der Zeitspanne abhängig erfolgt, um die die vorbestimmte Zeitdauer überschritten wurde.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass der Kraftstoffdruck (FUP) monoton stetig mit der Zeitspanne gesteigert wird, bis die Brennkraftmaschine (M) eine vorbestimmte Drehzahl (N) erreicht hat.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Start in den Stufen a) und b) mit Betriebsparametern erfolgt, die für eine warme Brennkraftmaschine (M) optimal sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10011507 | 2000-03-09 | ||
| DE10011507 | 2000-03-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1132613A2 true EP1132613A2 (de) | 2001-09-12 |
| EP1132613A3 EP1132613A3 (de) | 2003-06-04 |
| EP1132613B1 EP1132613B1 (de) | 2004-05-19 |
Family
ID=7634106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01104950A Expired - Lifetime EP1132613B1 (de) | 2000-03-09 | 2001-02-28 | Verfahren zum Starten einer Brennkraftmaschine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1132613B1 (de) |
| DE (1) | DE50102303D1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1298303A3 (de) * | 2001-09-27 | 2004-12-01 | Robert Bosch Gmbh | Verfahren und Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine |
| DE102009040321B4 (de) * | 2009-09-05 | 2020-08-27 | Andreas Stihl Ag & Co. Kg | Verfahren zum Betrieb eines Verbrennungsmotors |
| DE102018001114B4 (de) * | 2017-02-20 | 2021-03-18 | Scania Cv Ab | System und verfahren zum steuern des betriebs eines anlassers für eine brennkraftmaschine |
| DE102012210708B4 (de) | 2012-06-25 | 2021-12-02 | Robert Bosch Gmbh | Verfahren und Anordnung zur Ermittlung eines Korrekturfaktors zur Korrektur eines Einspritzverlaufs bei einem Kraftfahrzeug unter Kaltstartbedingungen zur Sicherung eines schnelleren und sicheren Motorstarts und Motorwiederstarts |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT388030B (de) * | 1982-02-12 | 1989-04-25 | Steyr Daimler Puch Ag | Kraftstoffeinspritzanlage fuer eine elektrische, ein startschloss umfassende anlasseinrichtung aufweisende kraftfahrzeug-dieselmotoren |
| JPS59206651A (ja) * | 1983-05-09 | 1984-11-22 | Toyota Motor Corp | エンジンの再始動制御方法 |
| DE3707635A1 (de) * | 1987-03-10 | 1988-09-22 | Pierburg Gmbh | Verfahren und vorrichtung zum starten einer brennkraftmaschine |
-
2001
- 2001-02-28 EP EP01104950A patent/EP1132613B1/de not_active Expired - Lifetime
- 2001-02-28 DE DE50102303T patent/DE50102303D1/de not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1298303A3 (de) * | 2001-09-27 | 2004-12-01 | Robert Bosch Gmbh | Verfahren und Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine |
| DE102009040321B4 (de) * | 2009-09-05 | 2020-08-27 | Andreas Stihl Ag & Co. Kg | Verfahren zum Betrieb eines Verbrennungsmotors |
| DE102012210708B4 (de) | 2012-06-25 | 2021-12-02 | Robert Bosch Gmbh | Verfahren und Anordnung zur Ermittlung eines Korrekturfaktors zur Korrektur eines Einspritzverlaufs bei einem Kraftfahrzeug unter Kaltstartbedingungen zur Sicherung eines schnelleren und sicheren Motorstarts und Motorwiederstarts |
| DE102018001114B4 (de) * | 2017-02-20 | 2021-03-18 | Scania Cv Ab | System und verfahren zum steuern des betriebs eines anlassers für eine brennkraftmaschine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1132613A3 (de) | 2003-06-04 |
| EP1132613B1 (de) | 2004-05-19 |
| DE50102303D1 (de) | 2004-06-24 |
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