EP0740058B1 - Verfahren zum Einstellen der Bewegung eines leistungsverändernden Regelorgans - Google Patents
Verfahren zum Einstellen der Bewegung eines leistungsverändernden Regelorgans Download PDFInfo
- Publication number
- EP0740058B1 EP0740058B1 EP96102704A EP96102704A EP0740058B1 EP 0740058 B1 EP0740058 B1 EP 0740058B1 EP 96102704 A EP96102704 A EP 96102704A EP 96102704 A EP96102704 A EP 96102704A EP 0740058 B1 EP0740058 B1 EP 0740058B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air flow
- mass air
- internal combustion
- combustion engine
- change
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 22
- 238000006073 displacement reaction Methods 0.000 title 1
- 238000002485 combustion reaction Methods 0.000 claims description 35
- 239000000446 fuel Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 10
- 230000001133 acceleration Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035939 shock 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
- 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
Definitions
- the invention relates to a method for adjusting the movement of a power changing Control element of an internal combustion engine for a motor vehicle, in which the position of a Accelerator pedal is detected and a controlled variable for depending on the position of the accelerator pedal the regulating body that changes performance is determined.
- the regulating body that changes performance is a throttle valve arranged in an intake manifold.
- German Offenlegungsschrift DE 41 08 956 A1 Device for decelerating the movement of a performance-dependent control element specified, the accelerator pedal and the performance-dependent control element - throttle valve or the the fuel quantity-setting actuator - in the sense of a non-rigid connection via Pressure element that is based on the movement of the control element relative to the actuation by the Actuating element (accelerator pedal) acts delayed, are coupled.
- the pressure element comprises a cylinder housing connected to the accelerator pedal and a cylinder housing therein guided piston element which is connected to the throttle valve.
- the pressure chamber thus formed is once with the intake manifold behind the throttle valve and on the other hand via an adjustable Throttle connected to the ambient pressure.
- the pressure in the pressure chamber is changed by the reduces negative pressure, which is a balance of intake manifold pressure across the Throttle adjoining outside air adjusts the piston element so that the Throttle valve opens completely.
- this solution offers no possibility of delay depending on other parameters, such as the operating parameters of the internal combustion engine. doubtful is also whether there is actually a defined fuel metering with such a setting the air supply to obtain a stoichiometric fuel / air ratio possible is.
- DE 3 722 088 A1 describes a method for controlling a Internal combustion engine for a motor vehicle is known in which the throttle valve position in Dependence of the accelerator pedal and the determined slip of the motor vehicle is determined, to prevent the wheels from spinning.
- US 5,084821 discloses a method in which is injected depending on the operating parameters of the internal combustion engine Fuel quantity is determined, with a driver-specific parameter is taken into account the behavior of the internal combustion engine the special requests of the driver.
- US 4,508,078 discloses a method for controlling the Throttle valve, in which when the accelerator pedal is depressed quickly, the throttle valve is opened disproportionately quickly or wide.
- the invention has for its object a method for adjusting the movement to create a performance-changing control element of an internal combustion engine, in which the setting is defined depending on a wide variety of parameters can, wherein the control element is a throttle valve in the intake manifold and the size of the Adjustment of the control element and thus the one to be introduced into the combustion chamber Air mass flow via a manipulated variable formed as a function of the position of the accelerator pedal he follows.
- the task is in a generic method by the characterizing features of claim 1 solved.
- the internal combustion engine, engine load and engine speed is an optimal value for the Change in output per work cycle of the internal combustion engine is determined in advance. From this optimal value for the change in performance and depending on the Throttle pedal position determined control variable is now a manipulated variable for the performance-changing regulating body determined for the following work cycles.
- parameters relating to the road condition can also be used flow into the determination of the optimal values for the change in performance, to prevent the wheels from spinning, for example. It is also conceivable that To incorporate driving behavior of a person who often leads the motor vehicle. This happens, for example, via a learning process in which it is recorded whether the person drives sporty or rather with less changes in performance. However, it also exists the possibility of providing a corresponding selector switch.
- Each air supply route has due to its geometrical Training and the inertia of certain moving parts a time behavior, so that it from The advantage is the inverse transmission behavior of the air supply path for the Air mass flow in the pre-calculation of the manipulated variable for the air mass flow adjusting actuator, such as the throttle valve, to be considered.
- Fuel quantity can be calculated and injected in a defined manner.
- load changes are caused by a too rapid reaction of the performance-changing control body prevented.
- parameters of the Road condition for example via the wheel slip, can also an anti-slip control can be easily realized. It is also possible with dynamic Operations, such as acceleration, without degrading fuel consumption as well as lower pollutant emissions.
- FIG. 1 shows a cylinder 1 of an internal combustion engine with an intake manifold fuel injection via an injection valve 2.
- the method according to the invention can also be used in an internal combustion engine with direct injection.
- the supply of the cylinder 1 for setting the fuel / air ratio with fresh air takes place via the intake manifold 3, in which a throttle valve 4 is arranged, the opening angle of which via a control device 5, for example a stepping motor, corresponding to different parameters for generating a defined air mass flow m ⁇ l im Intake pipe 3 is set.
- a control device 5 for example a stepping motor
- the ignition device 6 are a function of the controller 7 obtained control signals S ignition, an ignition signal to the spark plug 8 for ignition triggering, when a corresponding also controlled by the control device the air / fuel ratio in the combustion chamber 11 of the cylinder is present.
- an accelerator pedal 9 which can be actuated by the driver of the motor vehicle is provided, the position of which is detected by a pickup 10 and converted into an electrical signal S pedal .
- a potentiometer can be integrated as a sensor 10 in the accelerator pedal, for example, which is rotated when the accelerator pedal is actuated and thus supplies the electrical signal S pedal as a function of the accelerator pedal position .
- the control device 7 Corresponding to the signal S pedal representing the accelerator pedal position , the control device 7 generates a controlled variable R for the actuating device 5 of the throttle valve 4, which is passed on to the actuating device 5 for adjusting the throttle valve angle proportionally or according to a damping function by conventional methods.
- R the controlled variable
- the control device 7 generates a controlled variable R for the actuating device 5 of the throttle valve 4, which is passed on to the actuating device 5 for adjusting the throttle valve angle proportionally or according to a damping function by conventional methods.
- this can lead to performance shocks which have a negative effect on driving comfort.
- excessive torque generated in this way causes the wheels to spin.
- Each intake manifold 3 has a time behavior, so that a stoichiometric fuel / air ratio in the combustion chamber 11 of the cylinder can only be set with difficulty due to the direct transmission of the accelerator pedal position to the actuating device 5 of the throttle valve 4 in dynamic processes (acceleration).
- the fuel / air mixture becomes lean or over-greased.
- various operating parameters of the internal combustion engine in the exemplary embodiment the engine speed n and the engine load M mot , a parameter ⁇ of the road condition and the gear ratio G applied are supplied.
- further parameters are conceivable.
- the control device 7 calculates an optimal air mass flow change ⁇ m ⁇ l per work cycle for the following work cycles of the internal combustion engine. Another possibility is to store the optimal air mass flow change ⁇ m ⁇ l as a function of certain operating states of the internal combustion engine in the control device 7 as stored values.
- a manipulated variable I throttle for the actuating device 5 for adjusting the throttle valve 4 is determined from the optimal air mass flow change in conjunction with the controlled variable R for the air mass flow m ⁇ l , which results from the change in the position of the accelerator pedal 9.
- the inverse transfer functions of the intake manifold 3 are included in the calculation.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
- Figur 1
- ein Blockschaltbild einer Regelung gemäß des erfindungsgemäßen Verfahrens und
- Figur 2
- Verläufe des Drosselklappenwinkels, des dadurch eingestellten Saugrohrdrucks um das Kraftstoff/Luftverhältnis der Brennkraftmaschine in Abhängigkeit des Signals für die Gaspedalbetätigung.
Claims (8)
- Verfahren zum Einstellen der Bewegung eines leistungsverändernden Regelorgans einer Brennkraftmaschine für ein Kraftfahrzeug, wobei das Regelorgan ein in einer Luftzufuhrstrecke der Brennkraftmaschine angeordnetes Verstellelement ist, bei welchem Verfahren die Stellung eines Gaspedals erfaßt wird und in Abhängigkeit der Stellung des Gaspedals eine Regelgröße für einen über das Verstellelement einzustellenden Luftmassenstrom ermittelt wird, dadurch gekennzeichnet, dass zumindest in Abhängigkeit von Betriebsgrößen (n, Mmot) eine optimale Luftmassenstromänderung (Δ m ˙l ) als optimaler Wert für eine Leistungsveränderung pro Arbeitstakt der Brennkraftmaschine vorrausschauend ermittelt wird und aus der optimalen Luftmassenstromänderung (Δm ˙l ) und der Regelgröße (R) für den Luftmassenstrom eine Stellgröße (Idrossel) für das den Luftmassenstrom (m ˙l ) einstellende Stellelement (4) für die folgenden Arbeitstakte berechnet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß in die Berechnung des optimalen Wertes für die Leistungsveränderung (Δm ˙l ) pro Arbeitstakt der Brennkraftmaschine Größen (η) des Fahrbahnzustandes einfließen.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in die Berechnung des optimalen Wertes für die Leistungsveränderung (Δm ˙l ) pro Arbeitstakt der Brennkraftmaschine das Fahrverhalten einer das Kraftfahrzeug führenden Person einfließt.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in die Berechnung des optimalen Wertes für die Leistungsveränderung (Δm ˙l ) pro Arbeitstakt der Brennkraftmaschine der eingelegte Gang (G) eines der Brennkraftmaschine vorgeschalteten Getriebes einfließt.
- Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß aus der optimalen Luftmassenstromänderung (Δm ˙l ) pro Arbeitstakt und der Regelgröße (R) für den Luftmassenstrom (m ˙l ) die Stellgröße (Idrossel ) für das Stellelement (4) unter Berücksichtigung der inversen Übertragungsfunktion der Luftzufuhrstrecke (3) ermittelt wird.
- Verfahren nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß aus der optimalen Luftmassenstromänderung (Δm ˙l ) pro Arbeitstakt und der Regelgröße (R) für den Luftmassenstrom (m ˙l ) die Stellgröße (Idrossel ) für das Stellelement (4) unter Berücksichtigung der Ladungswechseländerung über die Zeit ermittelt wird.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Luftzufuhrstrecke (3) ein Saugrohr und das den Luftmassenstrom (m ˙l ) einstellende Verstellelement (4) eine Drosselklappe ist.
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß aus der optimalen Luftmassenstromänderung (Δm ˙l ) eine entsprechend des zu erwartenden Luftmassenstroms (m ˙l ) in den Brennraum (11) einzuspritzende Kraftstoffmenge (m ˙k ) pro Arbeitstakt ermittelt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19515855 | 1995-04-29 | ||
DE19515855A DE19515855A1 (de) | 1995-04-29 | 1995-04-29 | Verfahren zum Einstellen der Bewegung eines leistungsverändernden Regelorgans |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0740058A2 EP0740058A2 (de) | 1996-10-30 |
EP0740058A3 EP0740058A3 (de) | 1998-12-09 |
EP0740058B1 true EP0740058B1 (de) | 2003-05-07 |
Family
ID=7760729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96102704A Expired - Lifetime EP0740058B1 (de) | 1995-04-29 | 1996-02-23 | Verfahren zum Einstellen der Bewegung eines leistungsverändernden Regelorgans |
Country Status (4)
Country | Link |
---|---|
US (1) | US5642708A (de) |
EP (1) | EP0740058B1 (de) |
DE (2) | DE19515855A1 (de) |
ES (1) | ES2196101T3 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5931136A (en) * | 1997-01-27 | 1999-08-03 | Denso Corporation | Throttle control device and control method for internal combustion engine |
JP2000097086A (ja) | 1998-09-18 | 2000-04-04 | Hitachi Ltd | エンジンの吸入空気流量制御方法、制御装置および出力制御方法 |
FR2804472B1 (fr) * | 2000-02-02 | 2002-07-26 | Sagem | Procede et dispositif de pilotage d'un debit de gaz passant par un organe d'etranglement |
EP1234964A1 (de) * | 2001-02-20 | 2002-08-28 | Sagem S.A. | Verfahren und Vorrichtung zur Steuerung des Gasflusses an einem Drosselelement |
US8019521B2 (en) | 2006-03-16 | 2011-09-13 | Chrysler Group Llc | Enhanced throttle control |
CN107117158B (zh) * | 2017-04-24 | 2023-11-14 | 深圳智慧车联科技有限公司 | 一种降低尾气污染物排放的方法及车辆 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4508078A (en) * | 1982-07-09 | 1985-04-02 | Mazda Motor Corporation | Electrically operated engine throttle valve actuating device |
US5084821A (en) * | 1988-10-05 | 1992-01-28 | Hitachi, Ltd. | Apparatus for determining control characteristics for automobiles and system therefor |
JPH0596977A (ja) * | 1991-10-09 | 1993-04-20 | Hitachi Ltd | 道路状況認識方式 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4335695A (en) * | 1979-10-01 | 1982-06-22 | The Bendix Corporation | Control method for internal combustion engines |
DE3019562A1 (de) * | 1980-05-22 | 1981-11-26 | Daimler-Benz Ag, 7000 Stuttgart | Vorrichtung zum steuern einer brennkraftmaschine |
DE3414681A1 (de) * | 1984-04-18 | 1985-10-24 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren und vorrichtung zur einspritzzeitsteuerung bei brennkraftmaschinen |
JPS61182438A (ja) * | 1985-02-07 | 1986-08-15 | Inoue Japax Res Inc | 内燃機関制御方法 |
JPS62258131A (ja) * | 1986-04-30 | 1987-11-10 | Mazda Motor Corp | 電子制御式自動変速機付エンジンの空燃比制御装置 |
DE3722088A1 (de) * | 1986-07-03 | 1988-01-21 | Nissan Motor | Verfahren zum steuern einer brennkraftmaschine und maschinensteuersystem fuer ein kraftfahrzeug |
JP2512787B2 (ja) * | 1988-07-29 | 1996-07-03 | 株式会社日立製作所 | 内燃機関のスロットル開度制御装置 |
DE3842075A1 (de) * | 1988-12-14 | 1990-06-21 | Bosch Gmbh Robert | Verfahren zur kraftstoffmengenbestimmung |
DE3930396C2 (de) * | 1989-09-12 | 1993-11-04 | Bosch Gmbh Robert | Verfahren zum einstellen von luft- und kraftstoffmengen fuer eine mehrzylindrige brennkraftmaschine |
DE4108956A1 (de) * | 1990-03-21 | 1991-09-26 | Gerardus Antonius Keers | Verfahren und vorrichtung zum verzoegern einer leistungsaenderung |
US5163398A (en) * | 1991-12-16 | 1992-11-17 | General Motors Corporation | Engine idle speed control based upon fuel mass flow rate adjustment |
JP2982460B2 (ja) * | 1992-01-13 | 1999-11-22 | 株式会社デンソー | ディーゼル機関の蓄圧式燃料噴射装置 |
-
1995
- 1995-04-29 DE DE19515855A patent/DE19515855A1/de not_active Withdrawn
-
1996
- 1996-02-23 EP EP96102704A patent/EP0740058B1/de not_active Expired - Lifetime
- 1996-02-23 ES ES96102704T patent/ES2196101T3/es not_active Expired - Lifetime
- 1996-02-23 DE DE59610416T patent/DE59610416D1/de not_active Expired - Lifetime
- 1996-04-23 US US08/636,838 patent/US5642708A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4508078A (en) * | 1982-07-09 | 1985-04-02 | Mazda Motor Corporation | Electrically operated engine throttle valve actuating device |
US5084821A (en) * | 1988-10-05 | 1992-01-28 | Hitachi, Ltd. | Apparatus for determining control characteristics for automobiles and system therefor |
JPH0596977A (ja) * | 1991-10-09 | 1993-04-20 | Hitachi Ltd | 道路状況認識方式 |
Also Published As
Publication number | Publication date |
---|---|
DE19515855A1 (de) | 1996-10-31 |
ES2196101T3 (es) | 2003-12-16 |
DE59610416D1 (de) | 2003-06-12 |
EP0740058A3 (de) | 1998-12-09 |
US5642708A (en) | 1997-07-01 |
EP0740058A2 (de) | 1996-10-30 |
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