EP1994270A1 - Procede pour identifier les seuils d'emission de gaz polluants en vue de commander le fonctionnement d'un vehicule automobile en mode "stop and start" - Google Patents
Procede pour identifier les seuils d'emission de gaz polluants en vue de commander le fonctionnement d'un vehicule automobile en mode "stop and start"Info
- Publication number
- EP1994270A1 EP1994270A1 EP06726239A EP06726239A EP1994270A1 EP 1994270 A1 EP1994270 A1 EP 1994270A1 EP 06726239 A EP06726239 A EP 06726239A EP 06726239 A EP06726239 A EP 06726239A EP 1994270 A1 EP1994270 A1 EP 1994270A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injected
- burned
- stop
- fuel
- injected
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 6
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 6
- 239000007789 gas Substances 0.000 title abstract description 6
- 239000000446 fuel Substances 0.000 claims abstract description 27
- 238000003745 diagnosis Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011905 homologation Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
-
- 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
- F02D2200/0614—Actual fuel mass or fuel injection amount
-
- 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
- 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
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the present invention relates to a method for identifying the emission thresholds of polluting gases to control the operation in "Stop and Start” stop an engine just before and during the immobilization of a vehicle automobile, and restart it instantly at the first driver's request.
- the system “Stop and Start” is a system that stops the engine just before and during the immobilization of the vehicle (traffic lights, traffic jams, etc.). The system starts automatically and instantaneously as soon as the brake pedal is released by the driver, when the driver wants to restart.
- the emission thresholds may be, for example, the thresholds defined by the EOBD.
- the European On Board Diagnosis (EOBD) is a European regulation accompanying the EURO 3 standard.
- the purpose of the EOBD is to inform the driver via the engine diagnostic LED of any fault affecting the clearance by exceeding a threshold.
- the EOBD is a monitoring software integrated into the engine control computer, it has two main functions: to detect the failures of the emission control equipment of the vehicle, and to signal to the driver the failures that result in exceeding an emission threshold, so that he can have the vehicle repaired.
- the object of the present invention is to limit the impact of these stops / restarts on the emissions of gaseous pollutants, such as HC, CO and NOx.
- the quantity of fuel injected is calculated on each restart, b) the difference between the quantity of fuel injected and the amount of normal fuel required is determined, the said resultant amount being considered to represent the quantity of fuel injected but not burned, c) comparing said injected but unburned fuel quantity with a predetermined threshold value, as a function of the distance traveled, d) inhibiting or not the operation in "Stop and Start” mode according to whether said quantity of fuel injected but not burned is greater than or not the predetermined threshold value.
- the calculation of the amount of fuel injected but not burned is an iterative calculation and by summation, so as to calculate the sum of fuel quantities injected but not burned for a series restarts between two engine restarts using the ignition key.
- each time the traveled distance counter returns to zero the value of the sum of the fuel injected but unburned amounts is reset to a value obtained by difference between said sum just before reset and a predetermined threshold value, when this difference is positive, and reset to zero when said difference is negative.
- the method is repeated over at least three driving cycles, and it comprises, in addition, the following step: a) storing each excess of said quantity of fuel
- FIG. 1 is a graph representative of an emission threshold according to the EOBD as a function of the distance traveled (also referred to as the "EOBD threshold” template) since the activation of the ignition contact by the ignition key. contact.
- Figure 2 is a graph representative of the evolution of the level of the restart quality indicator parameter, according to the present invention, which level of said parameter controls the setting or not in "Stop and Start” mode of the engine.
- a restart quality indicator is defined, as explained hereinafter. after.
- the motor may or may not operate in "Stop and Start" mode.
- the present invention on each restart, it calculates the amount of gasoline injected and is compared to the nominal amount of fuel required. The difference between these two quantities is considered to be gasoline which has been injected and which has not burned, and which consequently finds itself in the exhaust. This quantity is then compared with the level of unburned hydrocarbons (HC), a "fat polluter” limit as a function of the distance traveled. Depending on the result of this comparison, the "Stop and Start" function is inhibited or not, as will be explained later.
- HC unburned hydrocarbons
- Each cycle, between two starts with the ignition key, comprises a series of startups and reboots, which can be named 1, 2, .., i, ...
- the template "Threshold EOBD” is defined by three parameters, namely InitEOBD, DistEOBD and slopeEOBD calibrated. It has the shape shown in the drawing of Figure 1 according to said distance traveled.
- the curve has an initial flat section which is intended to allow the "Stop and Start", even after a difficult first start. It is parameterized by "InitE ⁇ BD" on the ordinate axis or axis of the EOBD and "DistEOBD” thresholds on the abscissa axis or axis of the distance traveled. Then, the slope (PenteEOBD) makes it possible to guarantee the respect of the criterion of the EOBD standard.
- the value of PenteEOBD is that of the line segment joining the origin O to the set point of coordinates InitEOBD and DistEOBD. The origin O corresponds to the start with the ignition key.
- the counter Sum Ti is reset to the value A, which corresponds to the same value A representing the difference between the Sum value.
- Ti and the threshold value E oBD at first maximum distance traveled Dl At the second reset illustrated by the arrow F2, the difference B between the value of Sum Ti and the template ThresholdEOBD being negative, the initialization is then zeroed in D2 (second distance traveled max.).
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)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FR2006/050215 WO2007104840A1 (fr) | 2006-03-13 | 2006-03-13 | Procede pour identifier les seuils d'emission de gaz polluants en vue de commander le fonctionnement d'un vehicule automobile en mode 'stop and start' |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1994270A1 true EP1994270A1 (fr) | 2008-11-26 |
Family
ID=38175556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06726239A Withdrawn EP1994270A1 (fr) | 2006-03-13 | 2006-03-13 | Procede pour identifier les seuils d'emission de gaz polluants en vue de commander le fonctionnement d'un vehicule automobile en mode "stop and start" |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7801663B2 (fr) |
| EP (1) | EP1994270A1 (fr) |
| JP (1) | JP4688935B2 (fr) |
| CN (1) | CN101400879B (fr) |
| BR (1) | BRPI0621219A2 (fr) |
| WO (1) | WO2007104840A1 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008020185B4 (de) | 2008-04-22 | 2015-03-12 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Steuern einer Brennkraftmaschine mit Stopp-Start-Automatik |
| FR2935446B1 (fr) * | 2008-08-26 | 2010-09-10 | Peugeot Citroen Automobiles Sa | Procede de construction et constructeur d'un indicateur d'endommagement d'un systeme d'injection moteur. |
| DE102013114270A1 (de) * | 2013-09-16 | 2015-03-19 | Hyundai Motor Company | Leerlaufabschaltungsbedingungsermittlungsverfahren eines Verbrennungsmotors |
| US9353718B2 (en) * | 2014-03-28 | 2016-05-31 | Cummins Inc. | Driveability of a vehicle equipped with start/stop logic |
| US9946734B2 (en) * | 2015-09-16 | 2018-04-17 | Ekin Teknoloji Sanayi Ve Ticaret Anonim Sirketi | Portable vehicle monitoring system |
| KR101804783B1 (ko) * | 2016-03-25 | 2017-12-05 | 현대자동차주식회사 | 차량 및 차량의 제어 방법 |
| CN108407738B (zh) * | 2018-02-12 | 2021-06-25 | 中国第一汽车股份有限公司 | 商用车故障灯组合点亮的故障提示方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19928373A1 (de) * | 1999-06-21 | 2001-01-04 | Volkswagen Ag | Verfahren bzw. Einrichtung zum Wiederanlassen des Motors eines Kraftfahrzeuges |
| JP3661606B2 (ja) * | 2001-04-27 | 2005-06-15 | トヨタ自動車株式会社 | 車輌用間歇運転式内燃機関の運転方法 |
| EP1302359B1 (fr) | 2001-10-13 | 2006-06-07 | Ford Global Technologies, LLC | Système automatique d'arrêt et de redémarrage pour un moteur à combustion de véhicule |
| GB2390438A (en) | 2002-07-01 | 2004-01-07 | London Taxis Internat Ltd | Vehicle control and warning system. |
| US6987330B2 (en) | 2003-04-16 | 2006-01-17 | Ford Global Technologies, Llc | Method and system for controlling a belt-driven integrated starter generator |
| FR2858665B1 (fr) * | 2003-08-08 | 2007-08-17 | Renault Sa | Procede de commande d'un ensemble d'entrainement de vehicule a moteur thermique |
| ITBO20040801A1 (it) * | 2004-12-23 | 2005-03-23 | Magneti Marelli Powertrain Spa | Metodo per la gestione della modalita' "stop and start" in un autoveicolo provvisto di un motore a combustione interna. |
| FR2883035B1 (fr) * | 2005-03-10 | 2007-05-18 | Peugeot Citroen Automobiles Sa | Procede pour identifier les seuils d'emissions de gaz polluants en vue de commander le fonctionnement d'un vehicule automobile en mode "stop and start" |
-
2006
- 2006-03-13 WO PCT/FR2006/050215 patent/WO2007104840A1/fr not_active Ceased
- 2006-03-13 CN CN2006800538253A patent/CN101400879B/zh not_active Expired - Fee Related
- 2006-03-13 EP EP06726239A patent/EP1994270A1/fr not_active Withdrawn
- 2006-03-13 US US12/282,350 patent/US7801663B2/en not_active Expired - Fee Related
- 2006-03-13 JP JP2008558842A patent/JP4688935B2/ja not_active Expired - Fee Related
- 2006-03-13 BR BRPI0621219-0A patent/BRPI0621219A2/pt not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007104840A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101400879A (zh) | 2009-04-01 |
| JP2009530527A (ja) | 2009-08-27 |
| US20090055075A1 (en) | 2009-02-26 |
| CN101400879B (zh) | 2010-12-01 |
| US7801663B2 (en) | 2010-09-21 |
| WO2007104840A1 (fr) | 2007-09-20 |
| JP4688935B2 (ja) | 2011-05-25 |
| BRPI0621219A2 (pt) | 2013-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20080826 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
| 17Q | First examination report despatched |
Effective date: 20101008 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: F02D 41/04 20060101ALI20120403BHEP Ipc: F02N 11/08 20060101AFI20120403BHEP Ipc: F02D 41/06 20060101ALI20120403BHEP |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20120913 |