EP1252428A2 - Verfahren zur zylinderabschaltung an einem verbrennungsmotor, insbesondere eines fahrzeugs, und entsprechende vorrichtung - Google Patents
Verfahren zur zylinderabschaltung an einem verbrennungsmotor, insbesondere eines fahrzeugs, und entsprechende vorrichtungInfo
- Publication number
- EP1252428A2 EP1252428A2 EP01907340A EP01907340A EP1252428A2 EP 1252428 A2 EP1252428 A2 EP 1252428A2 EP 01907340 A EP01907340 A EP 01907340A EP 01907340 A EP01907340 A EP 01907340A EP 1252428 A2 EP1252428 A2 EP 1252428A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- cylinders
- combustion engine
- internal combustion
- control unit
- 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 29
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 230000009849 deactivation Effects 0.000 claims description 47
- 239000000446 fuel Substances 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000977 initiatory 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
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
Definitions
- the invention relates to a method for cylinder deactivation on an internal combustion engine, in particular a vehicle, in accordance with a switch-off program according to the introductory part of claim 1.
- the invention relates to a device for cylinder deactivation on an internal combustion engine, in particular a vehicle, with a control unit which is in operative operative contact with the cylinders of the internal combustion engine and which has a control unit, a knock control unit and an injection valve shutdown unit, according to the preamble of Claim 8.
- a cylinder deactivation on an internal combustion engine, in particular a vehicle, according to a predetermined deactivation program is known.
- the corresponding injection valves are switched off in a cylinder-selective manner, so that no more fuel is supplied to the respectively associated cylinder or combustion chamber. There is therefore no combustion in the cylinders deactivated in this way.
- An injection valve shutdown or cylinder shutdown can be provided for the following reasons:
- ASR anti-slip control
- ABS anti-lock braking system
- the cylinder is switched off by means of a masking pattern, which is fixed in the first two cases and allows free switching off of one or more cylinders, while in the third case the masking pattern is predetermined by misfire detection.
- the cylinder is switched off by means of a masking pattern, the engine efficiency deteriorates in one or more of the above-mentioned cases.
- the method according to the invention for cylinder deactivation on an internal combustion engine, in particular a vehicle, in accordance with a deactivation program is characterized in that the cylinder deactivation
- the cylinder deactivation By means of coordination of the switch-off program with a cylinder-specific knock control of the internal combustion engine.
- a cylinder-specific knock control By means of coordination of the switch-off program with a cylinder-specific knock control of the internal combustion engine.
- each cylinder of the internal combustion engine is operated taking into account various operating conditions at the optimum efficiency or at the knock limit.
- the cylinder-specific knock control enables the activation of a knock control guide cylinder function, which is also known per se, by means of which cylinders with poor or no knock detection are guided through the other cylinders of the internal combustion engine with good knock detection.
- the leading cylinders are also referred to as master cylinders.
- the cylinder-specific knock control thus delivers data or information which is important for achieving an efficiency-optimized cylinder deactivation.
- a cylinder-specific ignition angle retard value is used as the cylinder deactivation criterion.
- the cylinder-specific ignition angle retard value it is possible to determine the ignition angle efficiency of the respective cylinder and thus by appropriate selection of the cylinder to be deactivated, that is to say the cylinder with the largest ignition angle retardation and thus with the relatively smallest ignition angle - Efficiency to achieve an efficiency-optimized cylinder deactivation.
- a classification of the cylinders with regard to a knock control master cylinder function is used as the cylinder deactivation criterion. Since with an activated knock control master cylinder function, the guided cylinders always have larger or identical ignition angle retardations than the master cylinders in terms of amount, it is possible to reliably prevent a master cylinder from being switched off before a guided cylinder that has not yet been switched off ,
- the cylinder deactivation preferably takes place according to a ranking.
- a ranking In accordance with previously defined order criteria, it is possible in a particularly effective manner to ensure an automatic, cylinder-based switch-off that is efficient and can be initiated preferably by means of a control unit.
- the hierarchy can be constructed, for example, as a bit matrix, which advantageously allows quick access to data stored in it and thus enables a particularly effective, automatic cylinder deactivation.
- the cylinders are assigned to the order-guided cylinders, neutral cylinders and master cylinders in accordance with the ranking with decreasing cylinder deactivation priority.
- This enables an efficiency-optimized cylinder deactivation, by means of which, if necessary, the cylinders defined as guided by the knock control are switched off first, and only after all guided cylinders have been switched off are the neutral cylinders (neither guided nor leading cylinders) released for deactivation. Only if all guided and neutral cylinders have already been switched off can a master cylinder be switched off if necessary.
- the specific fuel consumption of the respective cylinder is used as the cylinder deactivation criterion.
- the specific fuel consumption of a cylinder can be calculated in a precise manner from the respective injection time and the respective cylinder torque, which in turn can be determined from the measured segment time. The specific fuel consumption is therefore suitable as an alternative to the ignition angle as a cylinder deactivation criterion.
- the cylinder deactivation advantageously takes the form of a deactivation of associated injection valves of a cylinder to be deactivated. This enables a particularly fast, reliable and precisely controllable cylinder deactivation.
- the device according to the invention is characterized in that the injection valve shutdown unit is operatively connected to the knock control unit in order to achieve a coordinated cylinder shutdown.
- injection valve shutdown unit with a storage means for storing a cylinder shutdown program. This enables a central storage of one after one or possibly several The control program for cylinder deactivation criteria created for efficiency-optimized cylinder deactivation.
- Figure 1 is a schematic representation of an operatively connected to a control unit
- FIG. 1 shows a schematic representation of an internal combustion engine 10, which in this case has four cylinders 11, 12, 13, 14.
- a control unit, generally designated 15, is operatively connected to the cylinders 11, 12, 13, 14 by means of control lines, which are shown schematically as double arrows 16, 17, 18, 19.
- the control unit 15 has a knock control unit 20, a control unit 21 and an injection valve shutdown unit 22, which are operatively connected to one another by means of data transmission lines, which are shown schematically as double arrows 24, 25, 26.
- the injection valve shutdown unit 22 is provided with a storage means 23.
- the control unit 15 is suitable for initiating a cylinder deactivation in coordination with a cylinder-specific knock control of the internal combustion engine 10.
- cylinder-specific, operating-specific parameter values are determined by means of the control unit 21, which are transmitted to the knock control unit 20 and / or to the injection valve shutdown unit 22 by means of the associated data transmission lines (double arrows 24, 26). Furthermore, the knock control unit 20 uses the data transmission line shown as double arrow 25 to transmit operating data which are relevant for the cylinder deactivation.
- the cylinder deactivation-relevant data transmitted from the knock control unit 20 and the control unit 21 to the injection valve deactivation unit 22 are processed by the latter in such a way that a cylinder-specific deactivation order can be created, which is stored in the storage means 23 and according to which the deactivation program coordinates a cylinder deactivation initiates with the cylinder-specific knock control of the internal combustion engine 10 in a case of need.
- the cylinder-specific shutdown order is therefore part of the shutdown program.
- a cylinder-specific ignition angle retardation value of the knock control, a knock control master cylinder function and / or the cylinder-specific, specific fuel consumption can be used as the cylinder deactivation criterion for creating the cylinder-specific deactivation order.
- the cylinder deactivation arrangement can be implemented, for example, in the form of a bit matrix with the following structure:
- Cylinder 2 may be switched off as the first cylinder
- a cylinder shutdown that may be necessary takes place in the order of cylinder 2, cylinder 3, cylinder 1 and finally cylinder.
- cylinder 2 has the worst efficiency (large ignition retardation value, high specific fuel consumption, guided cylinder) and cylinder 4 has the best efficiency (small ignition retardation value, low specific fuel consumption, master cylinder).
- the cylinder is deactivated in Form of switching off associated injection valves (not shown) of the cylinder of the internal combustion engine 10 to be switched off.
- the cylinder deactivation order stored in the storage means 23 is continuously adapted as a function of the respective operating parameter values, it is possible to obtain an efficiency-optimized cylinder deactivation due to the coordination with the cylinder-specific knock control of the internal combustion engine 10.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10002268A DE10002268A1 (de) | 2000-01-20 | 2000-01-20 | Verfahren zur Zylinderabschaltung an einem Verbrennungsmotor, insbesondere eines Fahrzeugs, und entsprechende Vorrichtung |
| DE10002268 | 2000-01-20 | ||
| PCT/DE2001/000060 WO2001053680A2 (de) | 2000-01-20 | 2001-01-10 | Verfahren zur zylinderabschaltung an einem verbrennungsmotor, insbesondere eines fahrzeugs, und entsprechende vorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1252428A2 true EP1252428A2 (de) | 2002-10-30 |
| EP1252428B1 EP1252428B1 (de) | 2007-01-10 |
Family
ID=7628114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01907340A Expired - Lifetime EP1252428B1 (de) | 2000-01-20 | 2001-01-10 | Verfahren zur zylinderabschaltung an einem verbrennungsmotor, insbesondere eines fahrzeugs, und entsprechende vorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6718944B2 (de) |
| EP (1) | EP1252428B1 (de) |
| JP (1) | JP4495384B2 (de) |
| CN (1) | CN1270069C (de) |
| DE (2) | DE10002268A1 (de) |
| WO (1) | WO2001053680A2 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006031734A1 (de) | 2006-07-10 | 2009-03-19 | Kastriot Merlaku | Verbrennungsmotor mit einer Zylinderabschaltfunktion |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242717A (ja) * | 2001-02-20 | 2002-08-28 | Honda Motor Co Ltd | ハイブリッド車両の制御装置 |
| DE10156665A1 (de) * | 2001-11-17 | 2002-09-19 | Bayerische Motoren Werke Ag | Elektronische Steuerung einer fremdgezündeten Brennkraftmaschine |
| US7428893B2 (en) * | 2004-11-12 | 2008-09-30 | Caterpillar Inc | Electronic flow control valve |
| DE102005052259B4 (de) | 2005-11-02 | 2018-10-31 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine mit mehreren Zylindern |
| US8229648B2 (en) | 2007-03-06 | 2012-07-24 | GM Global Technology Operations LLC | Method and apparatus for controlling fuel injection in a homogeneous charge compression ignition engine |
| US20110178696A1 (en) * | 2008-07-30 | 2011-07-21 | Valeo Systemes De Controle Moteur | Control unit for one or more electromagnetic actuators of a heat engine valve, and different assemblies of such control units and such electromagnetic actuators |
| US8346418B2 (en) * | 2009-11-30 | 2013-01-01 | GM Global Technology Operations LLC | Method of smoothing output torque |
| GB2502283B (en) | 2012-05-21 | 2018-12-12 | Ford Global Tech Llc | An engine system and a method of operating a direct injection engine |
| ITBO20120323A1 (it) * | 2012-06-12 | 2013-12-13 | Magneti Marelli Spa | Metodo di controllo di un motore a combustione interna |
| EP4722521A1 (de) * | 2024-10-01 | 2026-04-08 | Volvo Truck Corporation | Kraftstoffverbrauch-optimierungssystem |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56126642A (en) * | 1980-03-07 | 1981-10-03 | Nissan Motor Co Ltd | Cylinder-number controlled engine |
| ES2021165B3 (es) * | 1988-02-04 | 1991-10-16 | Siemens Ag | Procedimiento con instalacion para el reconocimiento de una combustion defectuosa en un motor de combustion interna |
| US5190013A (en) * | 1992-01-10 | 1993-03-02 | Siemens Automotive L.P. | Engine intake valve selective deactivation system and method |
| DE19532164A1 (de) * | 1995-08-31 | 1997-03-06 | Clouth Gummiwerke Ag | Antriebssystem, insbesondere für ein Kraftfahrzeug, und Verfahren zum Betreiben desselben |
| DE19719631A1 (de) * | 1997-05-09 | 1998-09-17 | Daimler Benz Ag | Verfahren und Vorrichtung zur Vermeidung von Schäden an einer Dieselbrennkraftmaschine durch unzulässig hohe Verbrennungsdrücke |
| US5746183A (en) * | 1997-07-02 | 1998-05-05 | Ford Global Technologies, Inc. | Method and system for controlling fuel delivery during transient engine conditions |
| DE19756342C2 (de) * | 1997-12-18 | 2003-02-13 | Conti Temic Microelectronic | Verfahren zur Steuerung einer Brennkraftmaschine |
| DE19825990A1 (de) * | 1998-06-10 | 1999-12-16 | Fev Motorentech Gmbh | Verfahren zur Erkennung von Zündaussetzern an einer Kolbenbrennkraftmaschine mit elektromagnetisch betätigbaren Gaswechselventilen |
| US6520159B2 (en) * | 2001-03-26 | 2003-02-18 | General Motors Corporation | Engine converter misfire protection method and apparatus |
-
2000
- 2000-01-20 DE DE10002268A patent/DE10002268A1/de not_active Withdrawn
-
2001
- 2001-01-10 WO PCT/DE2001/000060 patent/WO2001053680A2/de not_active Ceased
- 2001-01-10 US US10/181,849 patent/US6718944B2/en not_active Expired - Fee Related
- 2001-01-10 EP EP01907340A patent/EP1252428B1/de not_active Expired - Lifetime
- 2001-01-10 DE DE50111849T patent/DE50111849D1/de not_active Expired - Lifetime
- 2001-01-10 JP JP2001553518A patent/JP4495384B2/ja not_active Expired - Fee Related
- 2001-01-10 CN CNB018039863A patent/CN1270069C/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0153680A2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006031734A1 (de) | 2006-07-10 | 2009-03-19 | Kastriot Merlaku | Verbrennungsmotor mit einer Zylinderabschaltfunktion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1270069C (zh) | 2006-08-16 |
| JP4495384B2 (ja) | 2010-07-07 |
| WO2001053680A3 (de) | 2001-12-06 |
| WO2001053680A2 (de) | 2001-07-26 |
| US20030116129A1 (en) | 2003-06-26 |
| DE10002268A1 (de) | 2001-07-26 |
| EP1252428B1 (de) | 2007-01-10 |
| US6718944B2 (en) | 2004-04-13 |
| JP2003520321A (ja) | 2003-07-02 |
| CN1395651A (zh) | 2003-02-05 |
| DE50111849D1 (de) | 2007-02-22 |
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