EP1129280A1 - System and method for detecting and influencing the phase position of an internal combustion engine - Google Patents
System and method for detecting and influencing the phase position of an internal combustion engineInfo
- Publication number
- EP1129280A1 EP1129280A1 EP00952934A EP00952934A EP1129280A1 EP 1129280 A1 EP1129280 A1 EP 1129280A1 EP 00952934 A EP00952934 A EP 00952934A EP 00952934 A EP00952934 A EP 00952934A EP 1129280 A1 EP1129280 A1 EP 1129280A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- injection
- pressure
- ignition
- internal combustion
- 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
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation 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
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
- F02D2041/0092—Synchronisation of the cylinders at engine start
-
- 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
- F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
-
- 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
- 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
Definitions
- the invention relates to a device and a method for detecting and influencing the phase position in an internal combustion engine according to the preamble of the main claim.
- the engine control unit calculates, depending on the detected position of the crankshaft or camshaft, when fuel should be injected into which cylinder and at what point in time the ignition is triggered got to. It is common for the
- the control unit can recognize the angular assignment in the pulse train.
- phase signal is incorrect, statistically every second attempt to start fails because ignition and injection of 360 ° KW crankshaft are incorrectly output by the control unit. The engine therefore does not start.
- Direct gasoline injector pushes gas back from the combustion chamber into the injection valves and the fuel rail, which then leads to the starting behavior being impaired even when the phase is correct.
- a second pick-up or sensor is usually provided according to the prior art, which scans a sensor disk which is connected to the camshaft and has a reference mark on its surface. Since the camshaft only rotates once during a work cycle, the control unit can determine the phase position of the phase from the signal supplied by the camshaft sensor with a single pulse per work cycle Recognize the internal combustion engine and carry out a synchronization.
- a single pulse per work cycle Recognize the internal combustion engine and carry out a synchronization.
- DE-OS 4418578 discloses a device for detecting the phase position in an internal combustion engine, which does not need a second sensor in the form of a camshaft sensor, by carrying out a check of the phase position under certain conditions, which condition advantageously restarts the sequential fuel injection after Thrust shutdown is.
- a segment time comparison is used to determine whether the speed of individual injected cylinders are in the expected angular position and to conclude that the phase position is correct or incorrect, segment time being a time that elapses while the crankshaft rotates through an angle, which is commonly referred to as a segment.
- the present invention is therefore based on the object of specifying a device and a method, by which it is possible to detect the phase position at the start and by which there is an improved starting behavior if the phase signal fails.
- This object is achieved according to the invention by the characterizing part of the main claim and the subclaims.
- the device according to the invention has the essential advantage that existing assemblies and components are used, no additional camshaft sensor is required and no additional pressure sensors are required.
- Rail pressure evaluation is usually carried out directly in the control unit, without additional switching. If necessary, the pressure signal of the fuel rail sensor can also be fed to the control unit for evaluation via a simple analog / digital comparator circuit.
- the injection valve in question into which the back pressure is blown back, is closed immediately and the pressure increase is communicated to the control unit, for example via the analog / digital comparator circuit. Thereupon a re-synchronization of injection and ignition by 360 ° KW is triggered by the control unit.
- Fig. 1 A schematic representation of a four-cylinder engine
- Fig. 2 A fuel rail for a four-cylinder engine
- Fig. 3 A schematic diagram of an engine control device.
- the fuel rail is a component of direct petrol injectors and has branches on each cylinder of the internal combustion engine 6 for the injection valves 5, which directly inject the fuel into the combustion chamber under electromagnetic control.
- the intake air is identified by 2
- 3 is the throttle valve and 4 is the intake manifold, which also has branches to each cylinder.
- the fuel rail sensor which acts as a pressure sensor and measures the prevailing pressure in the fuel rail, is identified by 8. 1, the engine sucks only air in normal operation and no longer the fuel-air mixture. The mixture formation in the combustion chamber allows two completely different operating modes.
- the mixture must only be ignitable in the area of the spark plug in shift operation.
- the other remaining part of the combustion chamber there is only fresh gas and residual gas without unburned fuel. In the idling and part-load range, this results in a very lean mixture and thus a reduction in fuel consumption.
- FIG. 2 shows a perspective illustration of the fuel rail 7 for a four-cylinder with four injection valves 5, the pressure regulator 11 and the fuel rail sensor 8 functioning as a pressure sensor.
- the reference number 10 shows the fuel filter, 9 is the electric fuel pump.
- Reference number 16 denotes the encoder disc, which is rigidly connected to the crankshaft 12 of the internal combustion engine 6 and has a large number of similar angle marks 13 on its circumference. In addition to these similar angle marks 13, there is a reference mark 14, which is realized, for example, by two missing angle marks.
- the sensor disk 16 is scanned by the sensor 15, for example an inductive sensor or a Hall sensor or a magnetoresistive sensor. The signals generated when the angle marks 13 pass in the sensor 15 are processed in a suitable manner in the control device 25.
- a phase sensor which is present in conventional internal combustion engines and which scans the camshaft 26 or a disk connected to the camshaft 26 with a marking is not required here.
- the information relating to the phase position which is usually obtained from the output signal of such a sensor, is obtained here with the aid of the method steps in claims 5 to 6 and by means of the pressure sensor signal in the form of the fuel rail sensor 8.
- the control device 25 receives, via various inputs, further input quantities required for the control or regulation of the internal combustion engine, which are measured by various sensors. In Fig. 3 these sensors are designated 17.
- a "ignition on” signal is supplied via a further input, which is supplied by the terminal 15 of the ignition lock when the ignition switch 18 is closed and which indicates to the control device 25 that the internal combustion engine has been started up.
- the control device 25 itself comprises at least one central processor unit 20 and memory 19.
- signals for the injection and ignition are determined for components of the internal combustion engine that are not described in more detail. These signals are emitted via the outputs 21 and 22 of the control device 25.
- the voltage supply to the control unit 25 takes place in the usual way with the aid of the battery 23 which is switched on during the operation of the internal combustion engine and a follow-up phase controlled by the control unit itself after the engine is switched off is connected to control unit 25.
- the information still determined after the internal combustion engine 6 has been switched off is stored in the after-running phase and is then immediately available to the control unit 25 when the internal combustion engine 6 is switched on again.
- This information includes in particular the last angular positions of the crankshaft or camshaft 12 or 26 as well as information regarding the last phase position.
- the pressure sensor is arranged in the fuel rail and is identical to the fuel rail sensor 8.
- a pressure sensor can also be assigned to each fuel injection valve 5. In the event of an incorrect phase position by 360 ° KW at the start, there is back-blowing by compression back pressure into a relevant injection valve. This leads to a pressure increase in the fuel rail, which sensor 8 registers. This can be evaluated using a simple analog / digital comparator circuit (not shown) and is output as a signal to control unit 25. A re-synchronization of ignition and injection by 360 ° KW is output there. The measured rail pressure can also be evaluated in another way directly in the control unit.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934112 | 1999-07-21 | ||
DE19934112A DE19934112A1 (en) | 1999-07-21 | 1999-07-21 | Device for controlling or regulating combustion engine has pressure sensor for detecting engine phase angle whose pressure signal has characteristic variation when blow-back occurs |
PCT/DE2000/002291 WO2001007770A1 (en) | 1999-07-21 | 2000-07-13 | System and method for detecting and influencing the phase position of an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1129280A1 true EP1129280A1 (en) | 2001-09-05 |
EP1129280B1 EP1129280B1 (en) | 2004-10-13 |
Family
ID=7915491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00952934A Expired - Lifetime EP1129280B1 (en) | 1999-07-21 | 2000-07-13 | System and method for detecting and influencing the phase position of an internal combustion engine |
Country Status (5)
Country | Link |
---|---|
US (1) | US6484691B1 (en) |
EP (1) | EP1129280B1 (en) |
JP (1) | JP4456787B2 (en) |
DE (2) | DE19934112A1 (en) |
WO (1) | WO2001007770A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10115262C2 (en) * | 2001-03-28 | 2003-04-24 | Bosch Gmbh Robert | Method for determining the rotational position of the camshaft of an internal combustion engine |
JP3893953B2 (en) * | 2001-11-26 | 2007-03-14 | 株式会社デンソー | Fuel supply / injection system |
DE102004048133A1 (en) * | 2004-10-02 | 2006-04-06 | Robert Bosch Gmbh | Method of measuring the speed of a crankshaft |
US7392790B2 (en) * | 2006-01-20 | 2008-07-01 | Caterpillar Inc. | System and method for resolving crossed electrical leads |
US7370635B2 (en) * | 2006-01-20 | 2008-05-13 | Caterpillar Inc. | System and method for resolving electrical leads |
DE102006031569B3 (en) * | 2006-07-07 | 2008-03-27 | Siemens Ag | Method and device for operating an internal combustion engine |
US8899203B2 (en) * | 2007-06-22 | 2014-12-02 | Ford Global Technologies, Llc | Engine position identification |
US7873460B2 (en) * | 2007-09-25 | 2011-01-18 | Denso Corporation | Controller for fuel injection system |
KR101165327B1 (en) | 2009-02-11 | 2012-07-18 | 봄텍전자 주식회사 | Inserting Apparatus for liquid in humans skin |
EP2634407A1 (en) * | 2012-02-29 | 2013-09-04 | Volvo Car Corporation | Camshaft position determination system |
CN104806368B (en) * | 2015-04-09 | 2017-06-06 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Suitable for the engine quick start method of any installation phase |
FR3072124B1 (en) * | 2017-10-09 | 2019-10-04 | Continental Automotive France | METHOD AND SYSTEM FOR DETECTING THE ROTATION SENSE OF A VEHICLE ENGINE |
US11530660B2 (en) * | 2018-11-15 | 2022-12-20 | Weichai Power Co.. Ltd. | Phase diagnosis method and apparatus |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972230A (en) * | 1975-06-19 | 1976-08-03 | Rca Corporation | Detecting malfunction in cylinders of internal combustion engines |
AT371247B (en) | 1979-02-15 | 1983-06-10 | List Hans | DEVICE FOR MEASURING THE TURNING ANGLE OF A SHAFT OF A MACHINE |
JP2541949B2 (en) * | 1986-11-28 | 1996-10-09 | 本田技研工業株式会社 | Ignition timing control device for 4-cycle internal combustion engine |
US5402675A (en) * | 1990-01-26 | 1995-04-04 | Robert Bosch Gmbh | Method for recognizing the power stroke of a four-stroke engine |
JPH05163997A (en) | 1991-12-10 | 1993-06-29 | Mitsubishi Electric Corp | Device and mehtod for controlling internal combustion engine |
DE4230616A1 (en) | 1992-09-12 | 1994-03-17 | Bosch Gmbh Robert | Device for recognizing the position of at least one shaft having a reference mark |
DE4306252C1 (en) * | 1993-03-01 | 1994-05-19 | Daimler Benz Ag | Operating system for multi-cylinder engine with fuel injection - uses signal from pressure sensor for high pressure fuel supply line for emergency engine operating mode |
US5613473A (en) * | 1993-08-26 | 1997-03-25 | Siemens Aktiengesellschaft | Method of identifying the stroke positions in an internal combustion engine upon startup |
DE4418578B4 (en) | 1994-05-27 | 2004-05-27 | Robert Bosch Gmbh | Device for detecting the phase position in an internal combustion engine |
FR2734322B1 (en) * | 1995-05-15 | 1997-07-25 | Magneti Marelli France | METHOD FOR RECOGNIZING THE PHASE OF THE CYLINDERS OF A FOUR-TIME CYCLE INTERNAL COMBUSTION ENGINE |
DE19521277A1 (en) * | 1995-06-10 | 1996-12-12 | Bosch Gmbh Robert | Device for cylinder detection in a multi-cylinder internal combustion engine |
JP3500888B2 (en) * | 1997-02-12 | 2004-02-23 | 日産自動車株式会社 | Fuel injection control device for in-cylinder direct injection spark ignition internal combustion engine |
DE19741820B4 (en) | 1997-09-23 | 2009-02-12 | Robert Bosch Gmbh | Method for evaluating the combustion chamber pressure profile |
-
1999
- 1999-07-21 DE DE19934112A patent/DE19934112A1/en not_active Withdrawn
-
2000
- 2000-07-13 US US09/763,744 patent/US6484691B1/en not_active Expired - Lifetime
- 2000-07-13 WO PCT/DE2000/002291 patent/WO2001007770A1/en active IP Right Grant
- 2000-07-13 EP EP00952934A patent/EP1129280B1/en not_active Expired - Lifetime
- 2000-07-13 DE DE2000508223 patent/DE50008223D1/en not_active Expired - Lifetime
- 2000-07-13 JP JP2001512173A patent/JP4456787B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0107770A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP4456787B2 (en) | 2010-04-28 |
DE19934112A1 (en) | 2001-01-25 |
US6484691B1 (en) | 2002-11-26 |
WO2001007770A1 (en) | 2001-02-01 |
DE50008223D1 (en) | 2004-11-18 |
EP1129280B1 (en) | 2004-10-13 |
JP2003505640A (en) | 2003-02-12 |
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