EP2724011A1 - Verfahren und vorrichtung zum betreiben einer kraftstofffördereinrichtung einer brennkraftmaschine - Google Patents
Verfahren und vorrichtung zum betreiben einer kraftstofffördereinrichtung einer brennkraftmaschineInfo
- Publication number
- EP2724011A1 EP2724011A1 EP12718201.2A EP12718201A EP2724011A1 EP 2724011 A1 EP2724011 A1 EP 2724011A1 EP 12718201 A EP12718201 A EP 12718201A EP 2724011 A1 EP2724011 A1 EP 2724011A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion engine
- internal combustion
- current
- armature
- control valve
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004590 computer program Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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
-
- 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
-
- 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
-
- 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
Definitions
- the invention relates to a method according to the preamble of claim 1,
- Quantity control valves for example, in a fuel delivery of a
- Quantity control valves are known from the market. Quantity control valves are known from the market. Quantity control valves are known from the market. Quantity control valves are known from the market. Quantity control valves are known from the market. Quantity control valves are known from the market. Quantity control valves are known from the market.
- Quantity control valve controls the pumped to a high-pressure accumulator ("Rail)
- Quantity control valve coupled armature can be moved by magnetic force.
- valve body - usually an inlet valve of the high pressure pump - can against
- the inventive method has the advantage that a quantity control valve (metering device) of a fuel delivery device - in particular while an internal combustion engine is operated at medium or low speeds - can be controlled with comparatively low electrical energy.
- the invention relates to a method for operating a
- Fuel delivery device of an internal combustion engine in which an electromagnetic actuator of a arranged in an inlet to a delivery chamber of the fuel delivery device quantity control valve is switched to adjust a flow rate.
- the electromagnetic actuator for each switching operation in which an armature is to be moved in the direction of a stroke stop, by means of the drive
- the switching of the quantity control valve occurs twice, three times or even four times during one revolution of one
- Quantity control valve and to achieve short switching times even at the highest possible speed of the camshaft or the internal combustion engine comparatively high energies are required.
- the invention is based on the consideration that at speeds below the maximum speed, the requirement for a short shift time is correspondingly less critical.
- Actuating device for switching energy supplied, in particular one the current supplied to the electromagnetic actuator and / or a height of a voltage applied to the electromagnetic actuator, at least temporarily made dependent on a speed of the camshaft or the internal combustion engine, namely, that it is lower at low speeds than at large.
- Actuator is moved from a first to a second position, depends on the speed of the internal combustion engine.
- the tightening phase requires a lot of energy to achieve a required short switching time.
- the inventive dependence of the control of the speed of the internal combustion engine during the tightening phase is particularly efficient.
- the activation of the electromagnetic actuating device during a holding phase following the tightening phase can take place essentially independently of the rotational speed.
- the energy is increased with increasing speed, wherein the relationship is monotonous.
- the energy is controlled such that the quantity control valve can be safely switched within a time interval provided for a respective speed.
- the time interval is generally greater for lower speeds than for higher speeds, and is sized so that the quantity control valve can operate correctly.
- the resulting temporal scope is used according to the invention to a
- An embodiment of the method provides that the current and / or the voltage for controlling the electromagnetic actuator are clocked.
- the electromagnetic actuator For example, the electromagnetic
- Actuation device by means of an electronic switch several times during the Anzugsphase and / or the holding phase of the armature to an operating voltage and turned off again.
- a set duty cycle thus determines the average current during the control.
- the duty cycle is adjusted so that the average current in accordance with the invention depends on the speed of the internal combustion engine.
- an actuation of the electronic switch takes place depending on a respective lower and upper current threshold.
- the current flowing through a coil of the electromagnetic actuator current is lower
- the electromagnetic actuating device by means of a "pre-controlled" pulse-width-modulated voltage, the determining parameters being set in advance for at least one control. According to the invention, these parameters are adjusted so that the strength of the energy supplied to the electromagnetic actuator for switching at least temporarily from the speed of the
- the method is particularly easy to carry out if it by means of a computer program on a control and / or regulating device
- Control unit of the internal combustion engine is performed.
- Storage medium is understood as far as any device that the
- Figure 1 is a simplified diagram of a fuel delivery of a
- Figure 2 is a sectional view of a high-pressure pump of
- a fuel delivery device together with a quantity control valve and an electromagnetic actuator
- Figure 3 is a timing diagram of a control of the electromagnetic
- FIG. 4 shows a diagram of a starting current and a starting time over a rotational speed of the internal combustion engine
- Figure 5 is a simplified block diagram to supplement the method.
- FIG. 1 shows a fuel delivery device 1 of an internal combustion engine in a greatly simplified representation. From a fuel tank 3 is fuel via a suction line 4, by means of a pre-demand pump 5, via a low-pressure line 7, and one of an electromagnetic actuator. 9
- Electrode 10 Electric (Electromagnet) actuated quantity control valve 10 of a (not further explained here) high-pressure pump 1 1 fed. Downstream is the
- High-pressure pump 1 1 connected via a high-pressure line 12 to a high-pressure accumulator 13 ("common rail"). Other elements, such as valves of the high pressure pump 1 1, are not shown in the figure 1.
- the electromagnetic actuator 9 is controlled by a control and / or regulating device 16, on softer a computer program 18 is executable. It is understood that the quantity control valve 10 may be formed as a unit with the high pressure pump 1 1. For example, that can
- Quantity control valve 10 a forced openable intake valve of
- the quantity control valve 10 may also have an actuating device other than the electromagnet 9, for example a piezoactuator.
- the prefeed pump 5 promotes fuel from the fuel tank 3 into the low-pressure line 7.
- the quantity control valve 10 controls the quantity of fuel supplied to a working space of the high-pressure pump 11 by moving an armature of the electromagnet 9 from a first to a second position - and vice versa - is moved.
- Quantity control valve 10 can thus be closed and opened.
- Figure 2 shows a partial sectional view (longitudinal section) of the high pressure pump 1 1 of the fuel conveyor 1 together with the quantity control valve 10 and the electromagnetic actuator 9.
- the illustrated arrangement comprises a housing 20 in which in the drawing in the upper area of the electromagnetic actuator 9, in the middle Area the quantity control valve 10, and in the lower part of a delivery chamber 22 are arranged together with a piston 24 of the high-pressure pump 1 1.
- the electromagnetic actuator 9 is arranged in a valve housing 26, and comprises a coil 28, an armature 30, a pole core 32, an armature spring 34, a rest seat 36 and a stroke stop 38.
- the rest seat 36 represents the first position of the armature 30, and the stroke stop 38 represents the second position of the armature 30.
- the armature 30 acts by means of a coupling element 40 a valve body 42.
- an associated sealing seat 44 is arranged.
- the sealing seat 44 is part of a pot-shaped housing element 46, which encloses inter alia the valve body 42 and a valve spring 48. Seal seat 44 and valve body 42 form the inlet valve of the high-pressure pump 1 1.
- Coupling element 40 is thereby acted upon by the valve body 42 against the force of the valve spring 48, whereby the inlet valve or the
- Quantity control valve 10 opens. As a result, a fluidic connection between the low-pressure line 7 and the delivery chamber 22 is produced.
- the armature 30 In the energized state of the electromagnetic actuator 9, the armature 30 is magnetically attracted by the pole core 32, whereby the coupling element 40 connected to the armature 30 is moved upward in the drawing. This can - with appropriate fluidic pressure conditions - the
- Valve body 42 are pressed by the force of the valve spring 48 against the sealing seat 44, and thus close the intake valve or the quantity control valve 10. This can be done, for example, when the piston 24 in the delivery chamber 22 performs a working movement (in the drawing above), wherein fuel via an open check valve 60 in the
- High pressure line 12 can be promoted.
- Figure 3 shows a timing diagram of a control of the quantity control valve 10.
- a double arrow 62 indicates the energization for a
- Tightening phase and a double arrow 64 indicates the energization for a holding phase of the armature 30 of the electromagnetic actuator 9.
- the armature 30 by magnetic force of the
- Retirement seat 36 is moved to the stroke stop 38.
- the armature 30 is held in position by a generally smaller magnetic force on the stroke stop 38.
- the course of the flow 11 will first be described below, which at a comparatively high rotational speed 72 (cf. FIG. 4) of the internal combustion engine is used to control the electromagnetic actuating device 9.
- Holding phase wherein the current 11 is clocked by an average value 68.
- the mean value 68 is smaller than the mean value 66a.
- the drive is stopped, whereby the current 11 is rapidly reduced to zero.
- Electromagnetic actuator 9 is driven by the current 12, that is, switching thresholds (not shown), which control the switching on and off of the current 12 during the tightening phase, are set lower with respect to switching thresholds of the current 11. This results in a correspondingly smaller mean value 66b for the course of the current 12 during the tightening phase.
- the required energy during the tightening phase is also smaller and an operating noise when striking the armature 30 at the stroke stop 38 is reduced.
- a tightening duration of the armature 30 is at the same time lengthened, the time difference between t2 and t0 being increased and thus the tightening phase 62 extended, but without the correct one
- the switching thresholds (not shown) determining the courses of the currents 11 and 12, or the resulting average values 66a and 66b, are each selected such that a secure abutment of the armature 30 on the stroke stop 38 and thus reliable switching of the quantity control valve 10 in all Operating cases is possible. Due to the during the tightening phase in the average smaller current 12 of the armature 30 is accelerated compared to the current 11 with a lower force and suggests a correspondingly delayed. This will be explained in more detail below with reference to FIG. FIG. 4 shows a coordinate system in which average values 66 of a current I flowing through the coil 28 during the starting phase and associated tightening durations 70 are plotted linearly over a rotational speed 72 of the internal combustion engine.
- the tightening duration 70 characterizes the period of time from the beginning of energizing the coil 28 at the time t0 until the first striking of the armature 30 on the stroke stop 38.
- the mean values 66 are determined in the present case by support points 74 which, for example, in a characteristic diagram of the control and / or regulating device 16 of the internal combustion engine can be stored.
- the average values 66 of the current I characterize-in particular when the coil 28 is switched to a constant source voltage during the starting phase-also an energy which is supplied to the electromagnetic actuating device 9 during the starting phase.
- Quantity control valve 10 at each speed 72 is enabled.
- FIG. 5 shows a simplified flow chart for controlling the
- the illustrated method is preferably by means of the computer program 18 in the control and / or
- Regulating device 16 of the internal combustion engine performed.
- a first block 76 the illustrated procedure begins, wherein the current speed 72 of the
- interpolation is performed between these two interpolation points 74 to determine a respective mean value 66 exactly matching the speed 72. From the average 66 suitable switching thresholds (without reference numerals) for the switching on and off of the current I are determined. In a third block 80, the determined switching thresholds are used, the electromagnetic actuator 9 or the coil 28 to drive during the tightening phase of the armature 30.
- the method of FIG. 5 can be repeated cyclically.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011077991A DE102011077991A1 (de) | 2011-06-22 | 2011-06-22 | Verfahren zum Betreiben einer Kraftstofffördereinrichtung einer Brennkraftmaschine |
PCT/EP2012/057985 WO2012175247A1 (de) | 2011-06-22 | 2012-05-02 | Verfahren und vorrichtung zum betreiben einer kraftstofffördereinrichtung einer brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2724011A1 true EP2724011A1 (de) | 2014-04-30 |
EP2724011B1 EP2724011B1 (de) | 2020-09-30 |
Family
ID=46025705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12718201.2A Active EP2724011B1 (de) | 2011-06-22 | 2012-05-02 | Verfahren und vorrichtung zum betreiben einer kraftstofffördereinrichtung einer brennkraftmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US9777662B2 (de) |
EP (1) | EP2724011B1 (de) |
JP (1) | JP5959636B2 (de) |
KR (1) | KR101898880B1 (de) |
CN (1) | CN103635680B (de) |
DE (1) | DE102011077991A1 (de) |
WO (1) | WO2012175247A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011077987A1 (de) * | 2011-06-22 | 2012-12-27 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Kraftstofffördereinrichtung |
EP2706222B1 (de) * | 2012-09-06 | 2016-07-13 | Delphi International Operations Luxembourg S.à r.l. | Pumpeinheit |
US10450994B2 (en) * | 2014-11-24 | 2019-10-22 | Ford Global Technologies, Llc | Method and system for fuel system control |
JP6581420B2 (ja) * | 2015-07-31 | 2019-09-25 | 日立オートモティブシステムズ株式会社 | 燃料噴射装置の制御装置 |
US11164014B1 (en) * | 2020-11-09 | 2021-11-02 | Hayden Ai Technologies, Inc. | Lane violation detection using convolutional neural networks |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2828678A1 (de) * | 1978-06-30 | 1980-04-17 | Bosch Gmbh Robert | Verfahren und einrichtung zum betrieb eines elektromagnetischen verbrauchers, insbesondere eines einspritzventils in brennkraftmaschinen |
JPH0650079B2 (ja) * | 1984-05-18 | 1994-06-29 | 日本電装株式会社 | 燃料噴射ポンプ用電磁弁の駆動電力制御装置 |
JPH08254138A (ja) * | 1995-03-16 | 1996-10-01 | Toyota Motor Corp | 内燃機関の燃料噴射制御装置 |
JP3304755B2 (ja) * | 1996-04-17 | 2002-07-22 | 三菱電機株式会社 | 燃料噴射装置 |
JP3751721B2 (ja) * | 1997-08-28 | 2006-03-01 | トヨタ自動車株式会社 | 可変容量型ターボチャージャの異常判定方法 |
DE19834120A1 (de) * | 1998-07-29 | 2000-02-03 | Bosch Gmbh Robert | Kraftstoffversorgungsanlage einer Brennkraftmaschine |
JP2000136747A (ja) * | 1998-11-04 | 2000-05-16 | Denso Corp | ディーゼルエンジンの電子制御式燃料噴射装置 |
JP2001263142A (ja) * | 2000-03-15 | 2001-09-26 | Hitachi Ltd | 内燃機関用燃料噴射装置 |
GB2372583A (en) * | 2001-02-21 | 2002-08-28 | Delphi Tech Inc | High pressure fuel injected engine limp home control system |
JP2002243145A (ja) | 2001-02-14 | 2002-08-28 | Tokyo Gas Co Ltd | 燃焼器用目詰まり防止装置 |
JP3807270B2 (ja) | 2001-08-31 | 2006-08-09 | 株式会社デンソー | 蓄圧式燃料噴射装置 |
JP3855861B2 (ja) * | 2002-06-28 | 2006-12-13 | トヨタ自動車株式会社 | 内燃機関の高圧燃料供給装置 |
JP4156465B2 (ja) | 2003-08-04 | 2008-09-24 | 三菱電機株式会社 | 燃料噴射弁制御装置 |
JP4164021B2 (ja) * | 2003-12-12 | 2008-10-08 | 株式会社日立製作所 | エンジンの高圧燃料ポンプ制御装置 |
JP4106663B2 (ja) | 2004-03-26 | 2008-06-25 | 株式会社デンソー | 内燃機関の燃料供給装置 |
DE102004016554B4 (de) | 2004-04-03 | 2008-09-25 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Ansteuerung eines Magnetventils |
JP4415884B2 (ja) * | 2005-03-11 | 2010-02-17 | 株式会社日立製作所 | 電磁駆動機構,電磁弁機構及び電磁駆動機構によって操作される吸入弁を備えた高圧燃料供給ポンプ,電磁弁機構を備えた高圧燃料供給ポンプ |
JP2007040361A (ja) * | 2005-08-02 | 2007-02-15 | Bosch Corp | 電磁弁駆動制御方法 |
JP4169052B2 (ja) * | 2006-06-29 | 2008-10-22 | トヨタ自動車株式会社 | 内燃機関の燃料供給装置 |
JP4327183B2 (ja) * | 2006-07-31 | 2009-09-09 | 株式会社日立製作所 | 内燃機関の高圧燃料ポンプ制御装置 |
ATE457423T1 (de) * | 2007-09-11 | 2010-02-15 | Fiat Ricerche | Kraftstoffeinspritzeinrichtung mit einer hochdruckkraftstoffpumpe mit variabler durchflussmenge |
US7977558B2 (en) * | 2007-11-30 | 2011-07-12 | Sakae Rhythm Musical Instrument Ltd. | Strainer, and snappy holding structure by the strainer |
JP5123251B2 (ja) * | 2009-05-22 | 2013-01-23 | 日立オートモティブシステムズ株式会社 | アクチュエータ制御装置 |
-
2011
- 2011-06-22 DE DE102011077991A patent/DE102011077991A1/de not_active Ceased
-
2012
- 2012-05-02 EP EP12718201.2A patent/EP2724011B1/de active Active
- 2012-05-02 WO PCT/EP2012/057985 patent/WO2012175247A1/de active Application Filing
- 2012-05-02 KR KR1020137033947A patent/KR101898880B1/ko active IP Right Grant
- 2012-05-02 US US14/128,599 patent/US9777662B2/en active Active
- 2012-05-02 CN CN201280030465.0A patent/CN103635680B/zh active Active
- 2012-05-02 JP JP2014516235A patent/JP5959636B2/ja active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012175247A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN103635680B (zh) | 2018-01-16 |
US9777662B2 (en) | 2017-10-03 |
JP2014517212A (ja) | 2014-07-17 |
JP5959636B2 (ja) | 2016-08-02 |
EP2724011B1 (de) | 2020-09-30 |
US20140311456A1 (en) | 2014-10-23 |
KR20140035947A (ko) | 2014-03-24 |
WO2012175247A1 (de) | 2012-12-27 |
CN103635680A (zh) | 2014-03-12 |
KR101898880B1 (ko) | 2018-09-14 |
DE102011077991A1 (de) | 2012-12-27 |
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