EP2561203A1 - Verfahren zum betreiben einer kraftstofffördereinrichtung - Google Patents
Verfahren zum betreiben einer kraftstofffördereinrichtungInfo
- Publication number
- EP2561203A1 EP2561203A1 EP11712266A EP11712266A EP2561203A1 EP 2561203 A1 EP2561203 A1 EP 2561203A1 EP 11712266 A EP11712266 A EP 11712266A EP 11712266 A EP11712266 A EP 11712266A EP 2561203 A1 EP2561203 A1 EP 2561203A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- fuel
- internal combustion
- combustion engine
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000002485 combustion reaction Methods 0.000 claims abstract description 68
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 239000000463 material Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000007858 starting material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002245 particle Substances 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
- 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
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
- F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
- F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
-
- 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
- F02D41/3082—Control of electrical fuel pumps
-
- 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
- F02D41/3854—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped with elements in the low pressure part, e.g. low pressure pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
-
- 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 or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
Definitions
- the invention relates to a method for operating a fuel delivery device of an internal combustion engine according to the preamble of the independent claim.
- a fuel delivery device and its mode of operation is already known from the series Diesel-common rail injection system (ISBN-978-3-86522-010-3) of the Robert Bosch GmbH or EP 1 195 514 A2.
- a fuel delivery device has an electrically driven delivery pump through which fuel is conveyed to the suction side of a high-pressure pump.
- the high-pressure pump delivers fuel into a high-pressure region, from which at least indirectly at least one injector of the fuel injection device is supplied with fuel.
- An electrical control device is provided which receives a signal for the pressure prevailing in the high-pressure region via a sensor device. By the electrical control device, the electric drive of the feed pump is variably controlled, so that the delivery rate of the feed pump is variable.
- a bypass connection branches off between the feed pump and the suction side of the high-pressure pump to a low-pressure region, which is a drive region of the high-pressure pump.
- a throttle point is arranged between the feed pump and the suction side of the high-pressure pump.
- a sensor device is arranged, through which the electrical control device, a signal for the pressure prevailing there is supplied.
- the electric drive of the feed pump is controlled by the electric control device such that a predetermined pressure is applied in the connection between the feed pump and the suction side of the high-pressure pump.
- the amount of fuel delivered by the high-pressure pump is variable.
- the feed pump is controlled starting with the start of the internal combustion engine and then promotes fuel to the suction side of the high-pressure pump.
- An additional safety circuit also prevents the fuel from being pumped when the ignition and the engine are switched on. This has the effect that fuel is conveyed by the feed pump to the inlet of the high-pressure pump only with the start of the internal combustion engine and the high-pressure pump.
- the pump element of the high-pressure pump during the first movement of the pump piston is not completely or not filled with fuel. There can be no or little Krafftstoff promoted to the high pressure area and the pressure build-up in the high pressure area is delayed.
- the inventive method with the characterizing features of claim 1 has the advantage over that when stopping the engine and / or during the Abstellphase the internal combustion engine, the feed pump and / or the device for regulating the quantity of fuel sucked at least temporarily operated so / is that Fuel is conveyed to the suction side of the high-pressure pump and early filling of the pump elements is made possible. This allows a faster pressure build-up in the high pressure region of the Krafftstoff wish worn.
- the delivery pump and / or the device for regulating the quantity of the fuel flow delivered are at least temporarily operated during the shutdown phase of the internal combustion engine so that fuel is pumped to the suction side of the high-pressure pump. This allows a filling of the pump elements already before the actual stop of the engine and ensures a rapid pressure build-up in the high pressure area at the subsequent start of the
- the delivery pump and / or the device for regulating the quantity of fuel sucked during the entire phase of the stoppage of the internal combustion engine is operated in such a way that fuel is delivered to the intake side of the high-pressure pump.
- This method has, in addition to the advantage of filling the pump elements in the stop phase of the internal combustion engine, the additional advantage that only a small control of the feed pump by the electrical control device 46 is required because excess fuel can flow through the bypass connection.
- the pump and / or the device for regulating the amount of fuel sucked Krafftstoff biomenge is not operated all the time when stopping the engine, but ended after a predetermined period, so that the electric pump has a lower power consumption and no or only less fuel flows through the bypass connection.
- a particular advantage of the method results if, with one or more pump elements of the high-pressure pump, at least one pump piston is in the region of bottom dead center, so that the pump elements can absorb as much fuel as possible. This allows for a restart of the internal combustion engine an even faster pressure build-up in the high pressure area.
- a further advantage results if the high-pressure pump has at least one spring-loaded inlet valve on the suction side for each pump element, since here it is possible to fall back on a known component.
- fuel can be promoted with higher pressure than the opening pressure of the intake valve by the feed pump and / or the means for regulating the amount of fuel to the high pressure pump.
- Another advantage can be achieved by the use of a regulated feed pump for regulating the amount of fuel sucked in, since additional components for regulating the quantity of fuel sucked in are eliminated.
- a proportional valve or a clocked open and closed valve as a device for volume control, since they offer themselves as cost-effective components.
- the figure shows a schematic representation of a Krafftstoff- conveying device of an internal combustion engine.
- the fuel delivery device shown has a feed pump 10, which sucks fuel from the reservoir 12.
- the feed pump 10 has an electric drive 14 which can be operated with variable power and thus variable speed, so that the flow rate and the generated discharge pressure is variable.
- the feed pump 10 can be designed, for example, as a flow pump, gear pump, internal gear pump, vane cell pump or roller cell pump.
- the Feed pump 10 can be arranged on the high-pressure pump 16, integrated into it or arranged remotely from the high-pressure pump 16, for example in the reservoir 12 or in a hydraulic line 36 between the reservoir 12 and the high-pressure pump 16.
- the high-pressure pump 16 has at least one pump element 22 , which in turn has a tightly guided in a cylinder bore 24 pump piston 26 which is driven in a lifting movement.
- the high pressure pump 16 may have its own drive shaft 17 through which the lifting movement of the pump piston 26 is effected via a cam or eccentric.
- the drive shaft 17 of the high pressure pump 16 is mechanically driven, for example via a transmission or a belt drive from the internal combustion engine, so that the speed of the high-pressure pump 16 is proportional to the speed of the internal combustion engine.
- the high-pressure pump 16 does not have its own drive shaft and the lifting movement of the pump piston 26 is effected by an eccentric or cam of a shaft of the internal combustion engine, for example the camshaft or crankshaft of the internal combustion engine.
- several high-pressure pumps 16 may be provided, each having a pump element 22, the pump piston 26 is moved by the shaft of the internal combustion engine.
- each pump element 22 By the pump piston 26 of each pump element 22, a pump working chamber 28 is limited in the cylinder bore 24, which is filled with fuel during the suction stroke of the pump piston 26 and 26 from the fuel pump in the high pressure region 18 is displaced during the delivery stroke of the pump piston.
- Each pump element 22 has an inlet valve 30 in the form of a spring-loaded check valve. The intake valve 30 opens at the suction stroke of the pump piston 26 or when the pressure of the fuel on the suction side of the high-pressure pump 16 exceeds the opening pressure of the intake valve 30, so that fuel delivered by the delivery pump 10 enters the pump working space 28.
- Each pump element 22 also has an outlet valve 32 in the form of a spring-loaded check valve which opens during the delivery stroke of the pump piston 26, so that fuel can be displaced into the high-pressure region 18.
- the fuel delivery device can influence the position of the pump piston 26 via the electrical control device 46 and the starter.
- the drive shaft 17 is positioned by the starter when stopping the internal combustion engine so that in the case of multiple pump elements 22 at least one pump piston 26th or in the case of only one pump element 22 whose pump piston is in the region of bottom dead center.
- the complete filling of at least one pump working chamber 28 can be ensured. This is particularly important in high pressure pumps 16 with only one pump element 22.
- the feed pump 10 can be arranged remotely from the at least one high-pressure pump 16, for example also in the storage container 12.
- the feed pump 10 is connected via a hydraulic line 36 to the suction side of the at least one high-pressure pump 16.
- a fuel filter 38 may be arranged to prevent dirt particles from entering the high-pressure pump 16 and the high-pressure region 18.
- From the line 36 can downstream of the fuel filter 38 branch off a bypass connection 40, which leads to a low-pressure region.
- a flow-limiting device in the form of a throttle point 42 can be provided, by means of which the amount of fuel flowing off via the bypass connection 40 of the quantity of fuel delivered by the delivery pump 10 is limited.
- an unillustrated pressure relief valve can also be arranged, which opens the bypass connection 40 only when a predetermined pressure is exceeded.
- the low-pressure region into which the bypass connection 40 opens can, for example, be a drive region of the high-pressure pump 16 with its drive shaft 17. This is particularly advantageous if the high-pressure pump 16 has its own drive shaft 17 and lubrication and / or cooling of the drive region takes place by means of fuel.
- the throttle point 42 may be arranged in the bypass connection 40, for example, in the region of entry into the drive region of the high-pressure pump 16.
- the low-pressure region, into which the bypass connection 40 opens may also be a return to the reservoir 12. This can be provided, in particular, if the at least one high-pressure pump 16 does not have its own drive shaft or if the drive region of the high-pressure pump 16 is lubricated by lubricating oil of the internal combustion engine.
- means 34 for regulating the quantity of the fuel sucked in by the high-pressure pump 16 and conveyed into the high-pressure reservoir 18 can be provided.
- the means 34 is for volume control The amount of fuel downstream of the bypass connection 40.
- the means 34 for regulating the quantity of fuel quantity may be formed, for example, as a proportional valve or as a clocked open and closed valve and is connected to the electrical control device 46. By means of the control signals of the electric control device 46, the volume control device 34 can be closed, the flow rate of the fuel delivered by the feed pump 10 to the high pressure pump 16 can be reduced or completely opened.
- a sensor device 44 is provided, by which the pressure prevailing in the high-pressure region 18 is detected.
- the sensor device 44 is connected to the electrical control device 46, which is thus supplied with a signal for the pressure prevailing in the high-pressure region 18.
- the electric control device 46 By the electric control device 46, the electric drive 14 of the feed pump 10 with variable power and thus variable speed and the means 34 is controlled to regulate the amount of fuel such that adjusts a predetermined pressure in the high pressure region 18.
- the feed pump 10 is used via its electric drive 14 to regulate the amount of fuel. In this case, no additional means 34 for regulating the amount of Krafftstoffmenge required or the means 34 for regulating the amount of Krafftstoffmenge is fully open.
- the means 34 are used for quantity control of the fuel quantity, wherein the feed pump 10 is operated substantially constant.
- the pressure required in the high-pressure region 18 can vary depending on operating parameters of the internal combustion engine.
- the electric control device 46 and the fuel injection is controlled by the injectors 20, for example, in terms of injection timing and injection quantity.
- the electric control device 46 may be with a start-stop, not shown
- the start-stop system automatically stops the engine when the vehicle is stationary and the brake is applied. If the journey is to be continued, the internal combustion engine is started automatically when the brake is no longer actuated. For a stop caused by the start-stop system During the shutdown phase of the internal combustion engine, the start-stop system influences the control device 46 of the fuel delivery device and can thus variably control the delivery pump 10 and the fuel quantity regulation device 34 so that when the internal combustion engine stops and / or during the shutdown phase the internal combustion engine, the feed pump 10 and / or the means 34 for regulating the quantity of fuel sucked at least temporarily operated so / that fuel is conveyed to the suction side of the high-pressure pump 16.
- the method is that at a stop of the internal combustion engine, the feed pump 10 is operated by the electric control device 46 so that it promotes fuel from the reservoir 12 through the connection 36 to the suction side of the high-pressure pump 16 during the entire phase of the stop of the internal combustion engine.
- the feed pump 10 can promote a constant amount of fuel throughout the process or the electric drive 14 is controlled via the electric control device 46 so that the amount of fuel is variable. Since the high pressure pump 16 does not deliver fuel during the stop of the engine, the fuel pressure on the suction side of the high pressure pump 16 increases. When the fuel pressure on the suction side of the high pressure pump 16 exceeds the opening pressure of the inlet valve 30, fuel enters the pump chamber 28 of the high pressure pump 16. Filling the pump chamber 28 of the high pressure pump 16 allows shorter start times of the engine, since the high pressure pump 16 has already been filled at a standstill and at a start of the engine faster fuel to the high pressure region 18 can promote.
- the Internal combustion engine is present.
- the method is only used for a short-term (or non-permanent) stop of the internal combustion engine.
- the electric control device 46 can distinguish whether it is a permanent stop of the internal combustion engine, such as when parking the motor vehicle by stopping by means of the ignition key or by completing the motor vehicle or whether it is a relatively short-term stop of the internal combustion engine For example, by the start-stop system is effected.
- the feed pump 10 is operated by the electric control device 46 so that it promotes fuel after stopping the engine fuel from the reservoir 12 through the connection 36 to the suction side of the high-pressure pump 16 and after a predetermined time by the electrical control device 46 the fuel delivery to the suction side of the high-pressure pump 16 is terminated.
- the feed pump 10 may promote a constant amount of fuel throughout the process or the electric drive 14 is controlled by the electrical control device 46 so that the fuel quantity is variable. Since the high-pressure pump 16 promotes no fuel during the stop of the internal combustion engine, the fuel pressure on the suction side of the high-pressure pump 16 increases.
- the size of the time interval in which the feed pump 10 delivers fuel, and the amount of Krafftstoff funded by the feed pump 10 is so large that on the suction side of the high pressure pump 16, a higher fuel pressure than the opening pressure of the inlet valve 30 of the high-pressure pump 16th the inlet valve 30 of the high pressure pump 16 is opened and fuel enters the pump working chamber 28 of the high pressure pump 16.
- Filling the pump working chamber 28 of the high pressure pump 16 allows shorter start times of the engine, since the high pressure pump 16 has been filled at a standstill and at a start of the engine faster fuel can promote the high pressure area 18.
- Particularly advantageous in this case is the fastest possible filling of the pump working chamber 28 of the high-pressure pump 16 after the stop of the internal combustion engine in order to enable a start of the internal combustion engine already a short time after switching off the internal combustion engine.
- bypass connection 40 is an unillustrated pressure relief valve, which opens when a predetermined pressure is exceeded.
- the opening pressure of the overpressure valve, not shown, of the bypass connection 40 is above the opening pressure of the inlet valves 30 of the high pressure pump 16. So that the Krafftstoffbuch in the supply line 36 to the high pressure pump 16 is not reduced too much, a flow restrictor can be provided in the form of a throttle point 42 through which the is limited via the bypass connection 40 flowing amount of fuel.
- Another method for operating a Krafftstoff thing is that already during the shutdown phase of the internal combustion engine, the feed pump 10 sucks fuel from the reservoir 12 and promotes through the connection 36 to the suction side of the high-pressure pump 16.
- the feed pump 10 promotes either the previous or an increased amount of fuel to the suction side of the high-pressure pump 16.
- the high pressure pump 16 promotes less fuel than before in the shutdown phase of the internal combustion engine, so that the fuel pressure on the suction side of the high pressure pump 16 already rises during the shutdown phase.
- Exceeds the fuel pressure on the suction side of the high-pressure pump 16 the opening pressure of the intake valve 30, the inlet valve 30 is opened and the pump working chamber 28 of the high-pressure pump 16 is filled with fuel.
- This method can be used either independently or in combination with the methods described above. If the method is used independently, it must be ensured that sufficient fuel is already conveyed by the feed pump 10 to the suction side of the high-pressure pump 16 during the shutdown phase of the internal combustion engine. When the internal combustion engine stops, the fuel pressure on the suction side of the high pressure pump 16 must exceed the opening pressure of the intake valve 30, so that the pump working space 28 of the high pressure pump 16 is filled with fuel. When combined with one of the previous methods, when the engine is stopped, the fuel pressure on the suction side of the high-pressure pump 16 need not be above the opening pressure of the intake valve 30. Since the feed pump 10 is operated even after the stop of the internal combustion engine for a certain time, a fuel pressure above the opening pressure of the inlet valve 30 can be achieved later and thus the filling of the pump elements 22 can be ensured.
- the feed pump 10 was used to regulate the Krafftstoffmenge.
- the fuel amount regulating means 34 was either fully opened or not present.
- Another way of regulating the amount of Krafftstoffmenge can be carried out with the means 34 for regulating the amount of Krafftstoffmenge.
- the means 34 for regulating the quantity of fuel sucked in at a stop or during the shutdown phase of the internal combustion engine via the electric control device 46 is controlled in such a way that it is open as required, the flow rate is regulated as needed or completely closed.
- the feed pump 10 is operated mainly with a constant flow rate. If a lot of fuel to the high pressure pump 16 is promoted according to the requirements of the previous method is the means 34 fully open, should be promoted low fuel to the high pressure pump 16 reduces the means 34 to regulate the amount of fuel and no fuel to the high-pressure pump 16 can be promoted means 34 to regulate volume.
- start-stop system All previous methods and combinations of these methods can be supplemented by the use of a start-stop system.
- the electric control device 46 is connected to a not shown start-stop system.
- the engine and the high pressure pump 16 is automatically turned off when the vehicle is stationary.
- the electrically controlled components, such as the feed pump 10 and the volume control device 34 continue to be supplied with power and, via the electrical control device 46, which is connected to the starting device.
- Stop system is connected, regulated. If the drive is to be continued, the internal combustion engine is automatically restarted when the brake is not actuated, which can be very rapid because the elements of the high-pressure pump 16 are already filled with fuel and the pressure build-up in the high-pressure region 18 can take place more quickly.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010028010 DE102010028010A1 (de) | 2010-04-21 | 2010-04-21 | Verfahren zum Betreiben einer Kraftstofffördereinrichtung |
PCT/EP2011/055342 WO2011131485A1 (de) | 2010-04-21 | 2011-04-06 | Verfahren zum betreiben einer kraftstofffördereinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2561203A1 true EP2561203A1 (de) | 2013-02-27 |
EP2561203B1 EP2561203B1 (de) | 2017-08-02 |
Family
ID=44243581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11712266.3A Active EP2561203B1 (de) | 2010-04-21 | 2011-04-06 | Verfahren zum betreiben einer kraftstofffördereinrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2561203B1 (de) |
DE (1) | DE102010028010A1 (de) |
WO (1) | WO2011131485A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE538384C2 (sv) * | 2014-07-08 | 2016-06-07 | Scania Cv Ab | Bränslesystem för förbränningsmotor, förbränningsmotor med ett sådant bränslesystem, fordon med ett sådant bränslesystemoch ett förfarande för att dämpa tryckfluktuationer hos enbränslefilteranordning i ett bränslesystem |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2028568C (en) * | 1990-10-25 | 1995-10-03 | Shinichi Kurosu | Fuel injection control system for a two-cycle engine |
JP3031222B2 (ja) * | 1995-12-13 | 2000-04-10 | 三菱自動車工業株式会社 | エンジンの燃料供給装置 |
JP2000213431A (ja) * | 1999-01-22 | 2000-08-02 | Yamaha Motor Co Ltd | ジェット推進艇 |
JP3829035B2 (ja) * | 1999-11-30 | 2006-10-04 | 株式会社日立製作所 | エンジンの燃料圧力制御装置 |
DE19961298A1 (de) * | 1999-12-18 | 2001-06-21 | Bosch Gmbh Robert | Verfahren zur Ansteuerung einer Kraftstoffpumpe |
IT1320684B1 (it) | 2000-10-03 | 2003-12-10 | Fiat Ricerche | Dispositivo di controllo della portata di una pompa ad alta pressionein un impianto di iniezione a collettore comune del combustibile di un |
DE10061856A1 (de) * | 2000-12-12 | 2002-06-27 | Bosch Gmbh Robert | Verfahren, Computerprogramm und Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine sowie Brennkraftmaschine |
JP4322444B2 (ja) * | 2001-06-14 | 2009-09-02 | 株式会社デンソー | 蓄圧式燃料噴射装置 |
DE102007058229A1 (de) * | 2007-12-04 | 2009-06-10 | Robert Bosch Gmbh | Verfahren zur Steuerung eines Kraftstoffeinspritzsystems einer Brennkraftmaschine mit Start-Stopp-Funktion |
-
2010
- 2010-04-21 DE DE201010028010 patent/DE102010028010A1/de not_active Withdrawn
-
2011
- 2011-04-06 WO PCT/EP2011/055342 patent/WO2011131485A1/de active Application Filing
- 2011-04-06 EP EP11712266.3A patent/EP2561203B1/de active Active
Non-Patent Citations (1)
Title |
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EP2561203B1 (de) | 2017-08-02 |
DE102010028010A1 (de) | 2011-10-27 |
WO2011131485A1 (de) | 2011-10-27 |
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