EP2126340A1 - Procédé d'identification d'un processus de démarrage externe d'un moteur à combustion interne - Google Patents
Procédé d'identification d'un processus de démarrage externe d'un moteur à combustion interneInfo
- Publication number
- EP2126340A1 EP2126340A1 EP08715958A EP08715958A EP2126340A1 EP 2126340 A1 EP2126340 A1 EP 2126340A1 EP 08715958 A EP08715958 A EP 08715958A EP 08715958 A EP08715958 A EP 08715958A EP 2126340 A1 EP2126340 A1 EP 2126340A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- activity
- detected
- towing
- 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 70
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000007858 starting material Substances 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 238000011156 evaluation Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 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
- F02N5/00—Starting apparatus having mechanical power storage
- F02N5/04—Starting apparatus having mechanical power storage of inertia type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
-
- 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
- F02N11/0848—Circuits or control means specially adapted for starting of engines with means for detecting successful engine start, e.g. to stop starter actuation
-
- 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
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
- F02N11/0825—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode related to prevention of engine restart failure, e.g. disabling automatic stop at low battery state
-
- 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
- F02N99/00—Subject matter not provided for in other groups of this subclass
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/13—Machine starters
Definitions
- the invention relates to a method for detecting a towing an internal combustion engine in a motor vehicle.
- the internal combustion engine of the motor vehicle is not started by means of an in-vehicle starter or an in-vehicle starter unit, but is manually towed. This is the case, for example, when the starter or another component of the starting system is defective or when the available power of the starter battery, which may be dependent on the temperature, is too low and starting of the internal combustion engine is therefore not possible. If the vehicle or the internal combustion engine is towed, it can generally be assumed that (with the exception of a discharged battery) a restart of the internal combustion engine will only be possible again when the defect in the vehicle has been rectified.
- the object of the invention is to provide a method by which a towing of the internal combustion engine can be distinguished from a conventional start of the internal combustion engine by means of a starter unit.
- the basic idea of the invention is that a towing operation of the internal combustion engine or the motor vehicle can be detected via the activity or inactivity of the starter or the starter unit.
- the inventive method for detecting a towing an internal combustion engine in a motor vehicle is characterized in that a the activity and / or non-activity of a starter unit of the internal combustion engine reproducing signal is detected and evaluated and that a towing of the internal combustion engine is detected when after detecting a successful start of the internal combustion engine, the signal representing the activity and / or inactivity of the starter unit shows no activity of the starter unit since the start of the starting process.
- a successful start of the internal combustion engine is detected when the initiation of a starting process is detected and, for example, a speed overshoot of the crankshaft speed is detected at the end of the starting process.
- a (successful) starting process of the internal combustion engine ie a transition from the stationary engine to the running engine can be detected by an evaluation of the activity of the internal combustion engine reproducing signal, for example.
- a successful start is then recognized at the end of the starting process by a self-adjusting and detectable speed overshoot and / or the achievement of idling speed.
- Such a recognition of a successful start can be made plausible in its timing by an evaluation within a time window and improved by additional timing and debouncing mechanisms.
- the activity and / or inactivity of the starter unit of the internal combustion engine by evaluating the activity and / or non-activity of the starter unit of the internal combustion engine reproducing signal, advantageously for a given time window or the internal combustion engine predetermined speed checked.
- the signal representing the activity and / or inactivity of the starter unit is configured such that it changes its status from "non-active" to "active” upon detection of the activity of the starter.
- the signal can be reset to the status "non-active" after a predetermined time interval and successful evaluation or upon reaching the start end and successful evaluation and / or as a function of the speed of the internal combustion engine or when switching off the internal combustion engine.
- towing must also be followed by the success of towing by the detection of the start-end - only then may the towing be considered as having taken place.
- Is the motor vehicle for example, equipped with a hybrid drive unit consisting of an internal combustion engine and an electric motor for driving the motor vehicle, it is, for example, useful to prevent a change of the drive from the engine to the electric motor (ie an automatic stop of the engine), if Towing the engine has been detected, for example. Due to a defective start system. This prevents that after a change of the drive from internal combustion engine to the electric motor, the vehicle comes to a standstill, since the start system can not start again due to its defect, the internal combustion engine. A restart of the internal combustion engine would then not possible. There is the danger of "lying down".
- an automatic engine stop function which may be part of a so-called “automatic start stop function”
- this function is deactivated in an advantageous embodiment of the invention when a starting of the internal combustion engine is detected. Fourth or the execution of your stop commands prevented, since in an automatic shutdown of a towed internal combustion engine, a restart can not be guaranteed in the rule. If the internal combustion engine were switched off automatically, it would probably have to be towed again.
- the single figure shows a simplified flow chart for detecting a towing an internal combustion engine and measures that are initiated upon detection of a towing.
- the motor vehicle which is designed to carry out the flowchart suitable, is equipped with a function for automatically stopping and restarting the internal combustion engine.
- the motor vehicle is equipped with a hybrid drive system consisting of an internal combustion engine and an electric motor for driving the motor vehicle, wherein the two drive units can be used alternatively for the drive.
- the flowchart may, for example, be implemented in an engine control unit or a plurality of control units provided for this purpose.
- step 10 There, it is determined by evaluation of the crankshaft speed kw whether the internal combustion engine is started or should be started (start of the start), ie St_BK is present. As soon as the crankshaft speed increases from zero (standstill), the beginning of a start attempt is the Internal combustion engine St_BK detected. Then, in step 20, the crankshaft speed kw is evaluated with regard to a speed overshoot. As soon as the speed overshoot is detected, a successful start of the internal combustion engine St BK e is detected and step 30 has been reached.
- a signal a_ST representing the activity of a starter unit of the internal combustion engine is evaluated.
- This signal is 0 when the starter or the starter unit is not active and has not been active since the start of the internal combustion engine St_BK.
- the signal changes from 0 to 1 as soon as an activity of the starter unit is detected.
- step 50 the function for automatically stopping and restarting the drive unit is deactivated in step 50 by generating a deactivation signal ASSF and parallel to this in step 60 a possible (future) change from the operation of the internal combustion engine in the operation of the electric motor for driving the vehicle by generating a mutual prohibition signal w_eM_aus prevented. This prevents that the internal combustion engine is switched off automatically and then can not be started if a drive by the internal combustion engine is necessary or at least makes sense.
- a plurality of other functions can be deactivated or influenced so that they do justice to the mode of operation of a towed internal combustion engine. Except the input kw in step 10 and 20 can a variety of other input parameters are added to detect the startup situation.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007009872A DE102007009872A1 (de) | 2007-02-28 | 2007-02-28 | Verfahren zum Erkennen eines Anschleppvorgangs einer Brennkraftmaschine |
PCT/EP2008/001407 WO2008104327A1 (fr) | 2007-02-28 | 2008-02-22 | Procédé d'identification d'un processus de démarrage externe d'un moteur à combustion interne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2126340A1 true EP2126340A1 (fr) | 2009-12-02 |
EP2126340B1 EP2126340B1 (fr) | 2015-10-14 |
Family
ID=39591508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08715958.8A Active EP2126340B1 (fr) | 2007-02-28 | 2008-02-22 | Procédé d'identification d'un processus de démarrage externe d'un moteur à combustion interne |
Country Status (4)
Country | Link |
---|---|
US (1) | US8584642B2 (fr) |
EP (1) | EP2126340B1 (fr) |
DE (1) | DE102007009872A1 (fr) |
WO (1) | WO2008104327A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009027407A1 (de) * | 2009-07-01 | 2011-01-05 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Startersteuerung, Computerprogrammprodukt und Startersteuerung |
US9045132B1 (en) | 2013-12-19 | 2015-06-02 | Ford Global Technologies, Llc | System and method for engine idle stop control with starter motor protection |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5815733A (ja) * | 1981-07-22 | 1983-01-29 | Nippon Denso Co Ltd | 自動車用エンジンの自動始動停止方法 |
DE4435613C1 (de) * | 1994-10-05 | 1996-03-28 | Fichtel & Sachs Ag | Hybridantrieb für ein Straßenfahrzeug |
DE59710081D1 (de) * | 1996-12-18 | 2003-06-18 | Volkswagen Ag | Anlasser mit elektronischer Motorstarterkennung |
FR2795770B1 (fr) * | 1999-06-30 | 2001-09-21 | Valeo Equip Electr Moteur | Procedes et systemes pour la commande automatique de la coupure et du redemarrage d'un moteur thermique d'un vehicule lors d'immobilisations temporaires de celui-ci |
DE10037544A1 (de) * | 1999-08-31 | 2001-03-01 | Luk Lamellen & Kupplungsbau | Getriebe |
EP1134389B1 (fr) * | 2000-01-28 | 2004-06-30 | Siemens Aktiengesellschaft | Méthode de prévention du démarrage involontaire d'un moteur à combustion interne |
JP4221871B2 (ja) * | 2000-03-14 | 2009-02-12 | いすゞ自動車株式会社 | 車両の変速装置 |
DE10151680A1 (de) * | 2001-10-19 | 2003-05-08 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Bestimmen des Endes eines Startvorgangs eines Verbrennungsmotors |
DE10160481A1 (de) * | 2001-12-08 | 2003-06-18 | Bosch Gmbh Robert | Verfahren zum Starten einer Verbrennungskraftmaschine eines Hybridantriebes eines Kraftfahrzeuges |
JP3716799B2 (ja) * | 2002-02-20 | 2005-11-16 | トヨタ自動車株式会社 | 機関一時停止を伴う車輌用内燃機関の運転方法 |
US7484583B2 (en) * | 2006-09-29 | 2009-02-03 | Caterpillar Inc. | Auxiliary power unit for moving a vehicle |
US7748362B2 (en) * | 2008-05-08 | 2010-07-06 | Gm Global Technology Operations, Inc. | Managing lean air/fuel transients in coordinated torque control |
-
2007
- 2007-02-28 DE DE102007009872A patent/DE102007009872A1/de not_active Withdrawn
-
2008
- 2008-02-22 EP EP08715958.8A patent/EP2126340B1/fr active Active
- 2008-02-22 WO PCT/EP2008/001407 patent/WO2008104327A1/fr active Application Filing
-
2009
- 2009-08-19 US US12/543,823 patent/US8584642B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2008104327A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20090308341A1 (en) | 2009-12-17 |
DE102007009872A1 (de) | 2008-09-04 |
EP2126340B1 (fr) | 2015-10-14 |
WO2008104327A1 (fr) | 2008-09-04 |
US8584642B2 (en) | 2013-11-19 |
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