EP2240678A1 - Verfahren und vorrichtung zur steuerung eines kraftstoffzumesssystems einer brennkraftmaschine - Google Patents
Verfahren und vorrichtung zur steuerung eines kraftstoffzumesssystems einer brennkraftmaschineInfo
- Publication number
- EP2240678A1 EP2240678A1 EP08872193A EP08872193A EP2240678A1 EP 2240678 A1 EP2240678 A1 EP 2240678A1 EP 08872193 A EP08872193 A EP 08872193A EP 08872193 A EP08872193 A EP 08872193A EP 2240678 A1 EP2240678 A1 EP 2240678A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- value
- internal combustion
- combustion engine
- pressure
- fuel pressure
- 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
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
- F02D41/30—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
- 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
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
-
- 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
- F02D2200/0604—Estimation of fuel pressure
-
- 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
- F02D41/08—Introducing corrections for particular operating conditions for idling
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/16—Introducing closed-loop corrections for idling
-
- 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
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
-
- 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
- F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
-
- 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
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits specially adapted for starting of engines
- F02N11/0803—Circuits specially adapted for starting of engines characterised by means for initiating engine start or stop
-
- 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
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits specially adapted for starting of engines
- F02N11/0814—Circuits specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
Definitions
- Modern internal combustion engines are often equipped with a so-called start-stop automatic.
- start-stop system is provided that, depending on the state of the internal combustion engine and / or the state of the driven vehicle, the internal combustion engine is switched off. This usually happens when the vehicle comes to a standstill. As soon as the driver wants to continue driving and this by the operation of a control element, such as the accelerator pedal indicates, the internal combustion engine starts automatically.
- the hydraulic components are significantly less stressed by the reduced pressure reduction / build-up cycle.
- this is achieved by controlling the fuel pressure to a first value when the internal combustion engine is switched off.
- the fuel pressure is controlled to a second value.
- the second value usually corresponds to the value which is usual when the internal combustion engine is switched off.
- the second value assumes the value zero or assumes a value which corresponds to the atmospheric pressure.
- the first value corresponds to a fuel pressure, which is usually used at idle.
- the fuel pressure falls below a threshold value, the fuel pressure is controlled to a second value. This has the advantage that the pressure does not drop below a predetermined value. If the pressure threatens to drop below the predetermined value, this means that when the driver shuts down the pressure in the rail has dropped too much and the pressure regulating valve can no longer be opened. In this case, there is a delayed restart of the vehicle with a cold engine.
- the fuel pressure is set to an operating-point-dependent value when the rotational speed rises above a certain rotational speed value.
- FIG. 1 is a block diagram of the device according to the invention.
- FIG. 2 is a flow chart to illustrate the invention
- FIG. 1 shows a block diagram of essential elements of the device according to the invention.
- a controller is designated 100. This controls a controller 110.
- the actuator 110 is a controller that controls the pressure in a fuel metering system.
- the fuel metering system is preferably a so-called common rail system.
- the actuator 110 may be formed as a so-called pressure regulating valve, which connects a high pressure region with a low pressure region.
- the actuator 110 is of the
- Control 100 controlled such that the pressure in the high pressure region assumes a certain value.
- this may be designed as a controller and in an improved embodiment as a control.
- the pressure is recorded and compared with a setpoint.
- the controller 110 is then activated.
- a controllable high-pressure pump can be designed as a controller to a pressure control valve. These can also be controlled in the sense of a control or in the sense of a regulation.
- the controller 100 processes the output signals of various sensors
- a start-stop system 130 which supplies a signal S.
- This start-stop control is designed such that it controls the internal combustion engine in certain conditions. Turns off the vehicle and / or the internal combustion engine. For example, the engine is turned off when the start-stop system detects that the vehicle is stationary. If the start-stop control detects that the driver wants to continue the vehicle, the start-stop control starts the internal combustion engine and allows it to continue.
- an operating element 140 which is operated by the driver and indicates whether the vehicle is operated or permanently put out of operation.
- This is in particular an ignition switch which is designed as an ignition key or as a switching means which is actuated by the driver.
- the state of this control indicates whether the driver wants to permanently disable the vehicle.
- the vehicle is operated when the operating element 140 is actuated.
- the internal combustion engine is usually switched off by the automatic start-stop system. If the driver indicates by appropriate actuation of the operating element 140 that he wants to permanently shut down the vehicle, then the internal combustion engine is likewise switched off. That is, the engine is turned on and off depending on the position of the operating member as well as the start-stop control 130.
- the rail pressure in the high-pressure region of the common rail system can be reduced and when the internal combustion engine is switched off via the start-stop control, the rail pressure is not reduced but its value leave or set in a preferred embodiment to the value used in idle. This ensures that when the engine is restarted, the rail pressure is available faster and a restart is faster possible.
- the start-stop control recognizes that the vehicle is stopping.
- the actuator 110 is controlled such that the rail pressure does not drop. If then a restart, the rail pressure is immediately available. If the driver actuates the operating element 140 after stopping, then this is also detected and the actuator 110 is actuated in such a way that the rail pressure drops to the value that is usually present when the vehicle is switched off. This value, to which the rail pressure is lowered, usually assumes the value zero.
- embodiments are also possible in which the rail pressure is set to a different value.
- a first query 200 checks whether the operating element 140 is activated in such a way that the driver wants to shut down the vehicle. If this is the case, then in step 210, the actuator 110 is controlled such that the fuel pressure assumes a second value, which is usually present when the engine is switched off.
- inquiry 200 detects that a corresponding signal from control element 140 is not present
- inquiry 220 checks whether a start-stop control 130 emits a signal indicating that the internal combustion engine has been switched off. If this is not the case, then in step 225, the actuator is controlled such that the fuel pressure assumes its usual value. This value is usually specified depending on the operating state of the internal combustion engine. This is preferably realized by specifying a corresponding desired value for the rail pressure or a corresponding control value for the actuator 110.
- the query 230 follows. This query 230 checks whether there is another condition. In particular, this inquiry 230 checks whether the fuel pressure P is less than a threshold value PS. If this is the case, then the actuator 110 is controlled in step 210 such that the rail pressure is lowered to the value that is usually present when the internal combustion engine is switched off. If the query 230 recognizes that the value P of the rail pressure is not smaller than the threshold value PS, the query 240 checks whether the rotational speed N is greater than a threshold value.
- the actuator 110 is activated in step 250 such that the rail pressure is set to a first value.
- This first value is usually chosen to correspond to the value used at idle. Is the value of the speed N greater as the threshold, so in step 210 is controlled so that the fuel pressure assumes the second value.
- the actuator 110 is activated in step 220 such that it assumes an operating-point-dependent value.
- step 210 the actuator 110 is actuated in such a way that the fuel pressure assumes a second value.
- This second value corresponds to the value that the rail pressure usually assumes when the internal combustion engine is put out of operation for a long time.
- This value usually corresponds to the value of the ambient pressure.
- the start-stop control 130 If there is no signal indicative of the shutdown of the engine from the control element 140, and the start-stop control 130 also does not provide a signal that desires to shut down the internal combustion engine, the
- Controlled actuator 110 such that the rail pressure assumes a third value.
- This third value is usually dependent on the operating state of the internal combustion engine, in particular the speed and the load of the internal combustion engine, predetermined. At this third value, the pressure during operation of the internal combustion engine is controlled or regulated.
- the actuator 110 is controlled such that the fuel pressure assumes a first value. This value is usually greater than the second value.
- the first value is chosen so that it starts the fast
- a common rail system with a pressure control valve is therefore provided that the pressure control valve is not opened when switching off the internal combustion engine by the start-stop control. Ie. in a common rail system with pressure control valve, the pressure control valve is opened in step 210. In Steps 225 and 250, however, the pressure control valve is kept closed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008007668A DE102008007668A1 (de) | 2008-02-06 | 2008-02-06 | Verfahren und Vorrichtung zur Steuerung eines Kraftstoffzumesssystems einer Brennkraftmaschine |
| PCT/EP2008/065525 WO2009097921A1 (de) | 2008-02-06 | 2008-11-14 | Verfahren und vorrichtung zur steuerung eines kraftstoffzumesssystems einer brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2240678A1 true EP2240678A1 (de) | 2010-10-20 |
| EP2240678B1 EP2240678B1 (de) | 2017-03-22 |
Family
ID=40329399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08872193.1A Active EP2240678B1 (de) | 2008-02-06 | 2008-11-14 | Verfahren und vorrichtung zur steuerung eines kraftstoffzumesssystems einer brennkraftmaschine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120037122A1 (de) |
| EP (1) | EP2240678B1 (de) |
| CN (1) | CN101939523B (de) |
| DE (1) | DE102008007668A1 (de) |
| WO (1) | WO2009097921A1 (de) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009061750B3 (de) | 2009-08-20 | 2021-09-09 | Ford Global Technologies, Llc | Schnellstart eines Common Rail-Systems |
| DE102009028739A1 (de) * | 2009-08-20 | 2011-03-31 | Ford Global Technologies, LLC, Dearborn | Schnellstart eines Common Rail-Systems |
| JP5131265B2 (ja) * | 2009-12-24 | 2013-01-30 | 株式会社デンソー | 燃料圧力制御装置 |
| DE102010001121A1 (de) | 2010-01-22 | 2011-07-28 | Robert Bosch GmbH, 70469 | Kraftstoffeinspritzsystem und Verfahren zum Steuern einer Kraftstoffpumpe |
| JP5110109B2 (ja) * | 2010-03-16 | 2012-12-26 | 株式会社デンソー | 燃料圧力制御装置 |
| JP5141706B2 (ja) * | 2010-03-19 | 2013-02-13 | 株式会社デンソー | 燃料圧力制御装置 |
| DE102010028910A1 (de) | 2010-05-12 | 2011-11-17 | Robert Bosch Gmbh | Verfahren zum Bereitstellen eines für ein Wiederanlassen einer Common-Rail-Brennkraftmaschine ausreichenden Raildrucks |
| KR101905553B1 (ko) * | 2012-10-31 | 2018-11-21 | 현대자동차 주식회사 | 가솔린 직분사 엔진의 제어 시스템 및 제어 방법 |
| DE102013200554A1 (de) | 2013-01-16 | 2014-07-17 | Robert Bosch Gmbh | Verfahren zum Bereitstellen eines Drucks in einem Common Rail |
| DE102013200553A1 (de) | 2013-01-16 | 2014-07-17 | Robert Bosch Gmbh | Verfahren zur Gewährleistung einer Betriebsfestigkeit einer Population von Common-Rail-Systemen |
| DE102013201355B4 (de) | 2013-01-29 | 2025-03-13 | Robert Bosch Gmbh | Steuern des Treibstoffdrucks in einer Einspritzanlage |
| DE102013204230A1 (de) * | 2013-03-12 | 2014-09-18 | Robert Bosch Gmbh | Verfahren zum Bereitstellen eines Raildrucks in einem Common-Rail-System |
| DE102013214831A1 (de) | 2013-07-30 | 2015-02-05 | Robert Bosch Gmbh | Verfahren zum Vorbereiten eines Startens einer Brennkraftmaschine |
| FR3013395B1 (fr) * | 2013-11-19 | 2015-12-11 | Renault Sas | Procede et systeme d'alimentation en gazole d'un vehicule automobile. |
| JP6287889B2 (ja) | 2015-02-19 | 2018-03-07 | トヨタ自動車株式会社 | 多気筒内燃機関の制御装置 |
| KR101714179B1 (ko) | 2015-07-27 | 2017-03-08 | 현대자동차주식회사 | Isg 재시동시 디젤엔진 레일압 제어방법 및 디젤 isg 차량 |
| DE102015220098B3 (de) * | 2015-10-15 | 2017-02-16 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine mit einem Hochdruck-Kraftstoffeinspritzsystem |
| JP6677585B2 (ja) * | 2016-06-21 | 2020-04-08 | 株式会社Subaru | 燃料供給装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558068A (en) * | 1994-05-31 | 1996-09-24 | Zexel Corporation | Solenoid valve unit for fuel injection apparatus |
| JP3564794B2 (ja) * | 1995-05-30 | 2004-09-15 | 株式会社デンソー | 内燃機関用燃料供給装置 |
| JP3575124B2 (ja) * | 1995-08-09 | 2004-10-13 | 株式会社デンソー | 内燃機関用燃料供給装置 |
| DE69827552T2 (de) * | 1997-06-19 | 2005-05-04 | Toyota Jidosha K.K., Toyota | Brennstoffdrucksteuervorrichtung für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine |
| JP3791298B2 (ja) * | 2000-05-09 | 2006-06-28 | トヨタ自動車株式会社 | 筒内噴射式内燃機関制御装置 |
| JP2004068792A (ja) * | 2002-08-09 | 2004-03-04 | Kokusan Denki Co Ltd | 内燃機関用燃料噴射・点火装置 |
| JP4581586B2 (ja) * | 2004-09-17 | 2010-11-17 | トヨタ自動車株式会社 | 内燃機関システム及びこれを搭載する自動車並びに内燃機関の始動方法 |
| JP2006258032A (ja) * | 2005-03-18 | 2006-09-28 | Toyota Motor Corp | 車両の制御装置 |
| JP4492532B2 (ja) * | 2005-12-26 | 2010-06-30 | 株式会社デンソー | 燃料噴射制御装置 |
-
2008
- 2008-02-06 DE DE102008007668A patent/DE102008007668A1/de not_active Ceased
- 2008-11-14 US US12/810,103 patent/US20120037122A1/en not_active Abandoned
- 2008-11-14 CN CN200880126301.1A patent/CN101939523B/zh not_active Expired - Fee Related
- 2008-11-14 EP EP08872193.1A patent/EP2240678B1/de active Active
- 2008-11-14 WO PCT/EP2008/065525 patent/WO2009097921A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009097921A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101939523B (zh) | 2016-07-06 |
| DE102008007668A1 (de) | 2009-08-13 |
| CN101939523A (zh) | 2011-01-05 |
| WO2009097921A1 (de) | 2009-08-13 |
| EP2240678B1 (de) | 2017-03-22 |
| US20120037122A1 (en) | 2012-02-16 |
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