EP0937886A2 - Verfahren zur Einstellung der Antriebsleistung eines Kraftfahrzeuges - Google Patents
Verfahren zur Einstellung der Antriebsleistung eines Kraftfahrzeuges Download PDFInfo
- Publication number
- EP0937886A2 EP0937886A2 EP99101945A EP99101945A EP0937886A2 EP 0937886 A2 EP0937886 A2 EP 0937886A2 EP 99101945 A EP99101945 A EP 99101945A EP 99101945 A EP99101945 A EP 99101945A EP 0937886 A2 EP0937886 A2 EP 0937886A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- torque
- ignition angle
- correction factor
- load
- angle correction
- 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
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
- F02D41/14—Introducing closed-loop corrections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
- F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D43/00—Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1411—Introducing closed-loop corrections characterised by the control or regulation method using a finite or infinite state machine, automaton or state graph for controlling or modelling
-
- 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
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1002—Output torque
- F02D2200/1004—Estimation of the output torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
Definitions
- the invention relates to a method for adjusting the Drive power of a motor vehicle with a spark ignition Internal combustion engine according to the preamble of Claim 1.
- a generic method for setting the drive power a motor vehicle is from DE 44 07 475 A1 known.
- the torque to be output by the drive unit in addition to the load also the ignition angle and the air / fuel ratio influenced.
- the method according to the invention is used in motor control the coordination of the various requirements the vehicle drive from the functions to adjust the Internal combustion engine decoupled.
- the moment interface is there just a target torque and information about it with what dynamics these torque requests are set should, to the control of the internal combustion engine.
- a desired setpoint torque M_soll and information about how the desired target torque M_set is set.
- a Driver specification determined driver request torque and if necessary further desired moments M_i to a resulting target torque M_soll processed.
- This is preferably a so-called torque interface, in which the driver's desired torque with other desired moments M_i, for example the transmission control, from a vehicle dynamics control or are passed to other subsystems of the drive control a resulting setpoint torque M_setpoint is processed.
- a such torque interfaces is in principle from the state of the Technology known and is therefore not explained in detail here.
- the torque interface in block 1 provides information about the dynamics with which the torque should be set in the form of two so-called dynamic bits MDYN0, MDYN1.
- torque requirements can be implemented in a known manner via the air path and / or via an ignition intervention.
- the desired type of torque setting is defined via the two dynamic bits MDYN0, MDYN1 by operating states Z1 to Z3: Torque setting MDYN1 MDYN0 Status Efficiency optimal torque setting via the air path 0 0 Z1 Fastest possible torque setting via ignition angle adjustment and air path 0 1 Z2 Torque setpoint for the air path is frozen, torque is reduced by adjusting the ignition angle 1 0 Z3 Invalid combination 1 1 -
- the setpoint torque M_soll is then divided into a filling torque M_filling and a resulting torque M_zünd depending on the current operating state Z1 to Z3.
- the filling torque M_Füll is set via the load control, while the resulting torque M_Zünd is contributed by an ignition angle adjustment.
- Operating state Z4 is a transitional state, which is explained in more detail below with reference to FIG. 2 becomes.
- the filling torque M_filling is fixed in the operating state Z3. This means that when it enters operating state Z3, it will Filling torque M_filling set to the current target torque M_set.
- the current target torque is then used for each determination M_soll with the filling moment M_Füll (k-1) of the last pass compared and the larger of the two values as current Filling moment M_Füll stored and passed on. It means that the filling torque M_filling does not decrease in operating state Z3, but can only enlarge.
- a residual torque M_Rest is determined is composed of the friction torque and that for the drive of Auxiliary units needed moment.
- the frictional torque can be determined from the current engine speed, the oil temperature and, if applicable other operating parameters can be determined.
- This residual moment M_Rest is in blocks 4 and 5 to determine the indexed Filling moment M_Füll_Ind and the resulting indexed Moments M_Zünd_Ind to the effective filling torque M_Füll or at the effective resulting moment M_Zünd added.
- an idle torque is used in block 6 for idle control M_Leer determined and in block 7 with the indexed Filling moment M_Füll-Ind compared, the larger of each both values as indexed torque M_Ind to the load control is handed over.
- the load control is known per se and will therefore only briefly explained here.
- a load setpoint TL_soll determined in the load control based on the current engine speed and possibly other Operating parameters from the indicated moment M_Ind a load setpoint TL_soll determined.
- the actual load value TL_ist for example with the help of an air mass meter, determined, continuously compared with the load setpoint TL_soll and a difference value is calculated. This difference value is then by controlling the throttle valve to zero if possible regulated.
- a first ignition angle correction factor ⁇ dyn is determined from the quotient of the indicated resulting torque M_Zünd_Ind and the indicated filling torque M Gre_Ind and multiplied in block 9 by a second ignition angle correction factor ⁇ MK to calculate the resulting ignition angle correction factor ⁇ .
- a retarding angle for the ignition angle calculation can then be determined from the resulting ignition angle correction factor ⁇ with the aid of a map.
- a first ignition angle correction factor ⁇ dyn 1 when forming the quotient in block 8.
- the second ignition angle correction factor ⁇ MK is also set to the value 1 in block 12.
- a resulting ignition angle correction factor ⁇ 1, that is, the ignition angle is not corrected.
- the control bit MDYN_MK 1.
- the limited correction factor ⁇ TL from block 11 is transferred to block 9 as the second ignition angle correction factor ⁇ MK .
- the correction factor ⁇ TL is calculated in block 10 by forming the quotient from the load setpoint TL_soll and the actual load value TL_act.
- a torque setting with lead is carried out. This means that when the setpoint torque M_soll is reduced, the filling torque M_filling is retained at the original value M_filling (k-1). In this case, the torque is reduced exclusively via the ignition timing. If the setpoint torque M_soll is increased, however, the filling torque M_filling is also increased accordingly and the load control is accordingly carried out.
- the second ignition angle correction factor ⁇ MK is determined analogously to the method according to operating state Z2.
- both ignition angle correction factors ⁇ dyn , ⁇ MK can contribute to the ignition angle adjustment.
- operating state Z1 When starting, operating state Z1 is selected as part of an initialization. A new operating state Zi is then selected as a function of the dynamic requirement MDYN0, MDYN1 currently determined in block 1.
- the possible transitions between the operating states Zi are each shown as arrows with associated conditions. As can be seen from FIG. 2, only a transition to the operating states Z2 or Z3 is possible starting from the operating state Z1. A direct transition from the operating state Z1 to the transition operating state Z4 is not provided. Accordingly, any changes between the operating states Z2, Z3 and Z4 are possible, but a direct change from the operating states Z2 or Z3 to the operating state Z1 is again not provided.
- the operating state Z1 can only be returned via the transitional operating state Z4 if the limited correction factor ⁇ TL is also greater than a predetermined threshold value s. This condition prevents a sudden retraction of a large ignition angle adjustment and thus a noticeable change in torque, as could arise from a direct jump from the operating state Z2 or Z3 in Z1.
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)
- Electrical Control Of Ignition Timing (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Description
- Fig. 1
- einen Strukturplan eines Ausführungsbeispiels des erfindungsgemäßen Verfahrens und
- Fig. 2
- eine Prinzipdarstellung der möglichen Übergänge zwischen den einzelnen Betriebszuständen zeigt.
Momenteneinstellung | MDYN1 | MDYN0 | Zustand |
Wirkungsgrad optimale Momenteneinstellung über den Luftpfad | 0 | 0 | Z1 |
Schnellst mögliche Momenteneinstellung über Zündwinkelverstellung und Luftpfad | 0 | 1 | Z2 |
Momentensollwert für den Luftpfad wird eingefroren, Momentenreduktion erfolgt über Zündwinkelverstellung | 1 | 0 | Z3 |
Ungültige Kombination | 1 | 1 | - |
MDYN0 := 0 MDYN1 := 0
Betriebszustand | M_Füll | M_Zünd | MDYN MK |
Z1 | := M_soll | M_soll | 0 |
Z2 | := M_soll | M_soll | 1 |
Z3 | := Max(M_Füll(k-1), M_soll) | M_soll | 1 |
Z4 | := M_soll | M_soll | 1 |
Claims (5)
- Verfahren zur Einstellung der Antriebsleistung eines Kraftfahrzeuges mit einer fremdgezündeten Brennkraftmaschine mit Mitteln zur Vorgabe eines Sollmomentes auf der Basis eines Fahrerwunschmomentes und gegebenenfalls weiterer Wunschmomente und mit Mitteln zur Einstellung dieses Sollmomentes durch Beeinflussung der Last und/oder des Zündwinkels
dadurch gekennzeichnet,
daß bei den Betriebsbedingungen drei Zustände (Z1, Z2, Z3) unterschieden werden, wobeiin einem ersten Betriebszustand (Z1) die Momenteneinstellung Wirkungsgrad-optimal durch eine Lastregelung erfolgt,in einem zweiten Betriebszustand (Z2) die Momenteneinstellung durch eine zusätzliche Zündwinkelverstellung schnellst möglich erfolgt undin einem dritten Betriebszustand (Z3) die Momentenvorgabe für die Lastregelung fixiert ist und die restliche Momenteneinstellung durch eine zusätzliche Zündwinkelverstellung erfolgt. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,daß das Sollmoment (M_soll) in Abhängigkeit vom momentanen Zustand (Z1, Z2, Z3) in ein Füllungsmoment (M_Füll) und ein resultierendes Moment (M_Zünd) aufgeteilt wird,daß aus dem Füllungsmoment (M_Füll) ein Lastsollwert (TL_soll) ermittelt und mit Hilfe einer Lastregelung der Lastistwert (TL_ist) auf diesen Lastsollwert (TL_soll) eingestellt wird,daß aus dem Quotient von resultierendem Moment (M_Zünd) und dem Füllungsmoment (M_Füll) ein erster Zündwinkelkorrekturfaktor (ηdyn) ermittelt wird,daß aus dem Quotient vom Lastsollwert (TL_soll) und dem Lastistwert (TL_ist) ein zweiter Zündwinkelkorrekturfaktor(ηmk) ermittelt wird,daß im ersten Zustand (Z1) der zweite Zündwinkelkorrekturfaktor(ηmk) gleich 1 gesetzt wird, unddaß aus dem Produkt von erstem und zweitem Zündwinkelkorrekturfaktor(ηdyn*ηmk) ein resultierender Zündwinkelkorrekturfaktor(η) ermittelt und daraus ein Spätverstellwinkel für die Zündwinkelberechnung ermittelt wird. - Verfahren nach Anspruch 2,
dadurch gekennzeichnet,
daß der zweite Zündwinkelkorrekturfaktor (ηMK) auf Werte kleiner oder gleich 1 begrenzt ist. - Verfahren nach Anspruch 2,
dadurch gekennzeichnet,
daß das Füllungsmoment (M_Füll) auf Werte größer oder gleich einem Leerlaufmoment (M_LLR) begrenzt ist. - Verfahren nach Anspruch 2,
dadurch gekennzeichnet,
daß ein Übergang vom zweiten Zustand (Z2) beziehungsweise dritten Zustand (Z3) in den ersten Zustand (Z1) nur dann erfolgt, falls der zweite Zündwinkelkorrekturfaktor (ηMK) einen vorgegebenen Schwellwert (s) übersteigt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19807126 | 1998-02-20 | ||
DE19807126A DE19807126C2 (de) | 1998-02-20 | 1998-02-20 | Verfahren zur Einstellung der Antriebsleistung eines Kraftfahrzeuges |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0937886A2 true EP0937886A2 (de) | 1999-08-25 |
EP0937886A3 EP0937886A3 (de) | 2001-04-25 |
EP0937886B1 EP0937886B1 (de) | 2006-01-04 |
Family
ID=7858383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99101945A Expired - Lifetime EP0937886B1 (de) | 1998-02-20 | 1999-01-30 | Verfahren zur Einstellung der Antriebsleistung eines Kraftfahrzeuges |
Country Status (5)
Country | Link |
---|---|
US (1) | US6119654A (de) |
EP (1) | EP0937886B1 (de) |
JP (1) | JPH11315746A (de) |
DE (2) | DE19807126C2 (de) |
ES (1) | ES2255738T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001044639A3 (de) * | 1999-12-18 | 2001-12-20 | Bosch Gmbh Robert | Verfahren und vorrichtung zur steuerung der antriebseinheit eines fahrzeugs |
WO2001044644A3 (de) * | 1999-12-18 | 2002-03-28 | Bosch Gmbh Robert | Verfahren und vorrichtung zur steuerung der antriebseinheit eines fahrzeugs |
DE102004005450B4 (de) * | 2004-02-04 | 2017-05-24 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs mittels phasenvoreilender Signalpfade |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10058355A1 (de) | 1999-12-18 | 2001-08-30 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung der Antriebseinheit eines Fahrzeugs |
FR2816989B1 (fr) | 2000-11-20 | 2003-05-16 | Saime Sarl | Procede d'optimisation de la combustion d'un moteur a combustion interne fonctionnant en auto-allumage |
DE10061432B4 (de) * | 2000-12-09 | 2007-04-26 | Daimlerchrysler Ag | Verfahren zur Drehmomenteinstellung beim Betrieb eines Kraftfahrzeuges mittels einer zeitlichen Sollwertüberhöhung |
DE60236815D1 (de) * | 2001-08-17 | 2010-08-05 | Tiax Llc | Verfahren zur regelung einer verbrennungskraftmaschine mit kompressionszündung und kraftstoff-luftvormischung |
US6705285B2 (en) | 2001-10-31 | 2004-03-16 | Daimlerchrysler Corporation | Air flow target determination |
US6688282B1 (en) | 2002-08-28 | 2004-02-10 | Ford Global Technologies, Llc | Power-based idle speed control |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4407475A1 (de) | 1994-03-07 | 1995-09-14 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung eines Fahrzeugs |
Family Cites Families (13)
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JP2564275B2 (ja) * | 1986-05-09 | 1996-12-18 | 株式会社日立製作所 | 状態適応型内燃機関制御システム |
DE3728573C1 (de) * | 1987-08-27 | 1988-11-24 | Daimler Benz Ag | Einrichtung zum Regeln wenigstens einer das Antriebsmoment einer Brennkraftmaschine eines Kraftfahrzeuges beeinflussenden Groesse |
JP2832266B2 (ja) * | 1990-06-30 | 1998-12-09 | マツダ株式会社 | エンジンのスロットル弁制御装置 |
JP3206224B2 (ja) * | 1993-06-30 | 2001-09-10 | 日産自動車株式会社 | 車両用トラクション制御装置 |
DE4343353C2 (de) * | 1993-12-18 | 2002-12-05 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Steuern einer Brennkraftmaschine |
US5479898A (en) * | 1994-07-05 | 1996-01-02 | Ford Motor Company | Method and apparatus for controlling engine torque |
JPH08218911A (ja) * | 1995-02-14 | 1996-08-27 | Honda Motor Co Ltd | 車両用内燃エンジン制御装置 |
DE19517675B4 (de) * | 1995-05-13 | 2006-07-13 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung des Drehmoments einer Brennkraftmaschine |
DE19545221B4 (de) * | 1995-12-05 | 2005-08-25 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
DE19618893A1 (de) * | 1996-05-10 | 1997-11-13 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
DE19630213C1 (de) * | 1996-07-26 | 1997-07-31 | Daimler Benz Ag | Verfahren und Vorrichtung zur Motormomenteinstellung bei einem Verbrennungsmotor |
DE19739567B4 (de) * | 1997-09-10 | 2007-06-06 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung des Drehmoments der Antriebseinheit eines Kraftfahrzeugs |
DE19803387C1 (de) * | 1998-01-29 | 1999-03-18 | Daimler Benz Ag | Verfahren zur Einstellung der Ausgangsleistung einer Brennkraftmaschine |
-
1998
- 1998-02-20 DE DE19807126A patent/DE19807126C2/de not_active Expired - Fee Related
-
1999
- 1999-01-30 EP EP99101945A patent/EP0937886B1/de not_active Expired - Lifetime
- 1999-01-30 ES ES99101945T patent/ES2255738T3/es not_active Expired - Lifetime
- 1999-01-30 DE DE59913003T patent/DE59913003D1/de not_active Expired - Lifetime
- 1999-02-16 JP JP11076264A patent/JPH11315746A/ja active Pending
- 1999-02-22 US US09/253,946 patent/US6119654A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4407475A1 (de) | 1994-03-07 | 1995-09-14 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung eines Fahrzeugs |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001044639A3 (de) * | 1999-12-18 | 2001-12-20 | Bosch Gmbh Robert | Verfahren und vorrichtung zur steuerung der antriebseinheit eines fahrzeugs |
WO2001044644A3 (de) * | 1999-12-18 | 2002-03-28 | Bosch Gmbh Robert | Verfahren und vorrichtung zur steuerung der antriebseinheit eines fahrzeugs |
US6786197B2 (en) | 1999-12-18 | 2004-09-07 | Robert Bosch Gmbh | Method and device for controlling the drive unit of a vehicle |
US6845750B2 (en) | 1999-12-18 | 2005-01-25 | Robert Bosch Gmbh | Method and device for controlling the drive unit of a vehicle |
DE102004005450B4 (de) * | 2004-02-04 | 2017-05-24 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs mittels phasenvoreilender Signalpfade |
Also Published As
Publication number | Publication date |
---|---|
JPH11315746A (ja) | 1999-11-16 |
DE19807126C2 (de) | 2000-11-16 |
EP0937886A3 (de) | 2001-04-25 |
DE19807126A1 (de) | 1999-08-26 |
US6119654A (en) | 2000-09-19 |
ES2255738T3 (es) | 2006-07-01 |
EP0937886B1 (de) | 2006-01-04 |
DE59913003D1 (de) | 2006-03-30 |
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