EP0740058A2 - Procédé pour ajuster le mouvement d'un organe de réglage variateur de charge - Google Patents

Procédé pour ajuster le mouvement d'un organe de réglage variateur de charge Download PDF

Info

Publication number: EP0740058A2
Authority: EP; European Patent Office
Prior art keywords: change; mass flow; internal combustion; combustion engine; air mass
Prior art date: 1995-04-29
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

Application number

EP96102704A

Other languages

German (de)

English (en)

Other versions

EP0740058B1 (fr

EP0740058A3 (fr

Inventor

Axel Dipl.-Ing. Heinrich

Frank Dipl.-Ing. Schulze

Uwe Dr. Waschatz

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Volkswagen AG

Original Assignee

Volkswagen AG

Priority date (The priority date 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 date listed.)

1995-04-29

Filing date

1996-02-23

Publication date

1996-10-30

1996-02-23 Application filed by Volkswagen AG filed Critical Volkswagen AG

1996-10-30 Publication of EP0740058A2 publication Critical patent/EP0740058A2/fr

1998-12-09 Publication of EP0740058A3 publication Critical patent/EP0740058A3/fr

2003-05-07 Application granted granted Critical

2003-05-07 Publication of EP0740058B1 publication Critical patent/EP0740058B1/fr

2016-02-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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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 an accelerator pedal is detected and a control variable for the power-changing control element is determined as a function of the position of the gas pedal.
the power-changing control element can be, for example, a throttle valve arranged in an intake manifold or an actuator which specifies the fuel quantity.
a device for decelerating the movement of a power-dependent control element is specified in German Offenlegungsschrift DE 41 08 956 A1, the accelerator pedal and the power-dependent control element - throttle valve or the actuator specifying the fuel quantity - in the sense of a non-rigid connection via a pressure element , which has a retarding effect on the movement of the control element relative to the actuation by the control element (accelerator pedal).
the pressure element comprises a cylinder housing connected to the accelerator pedal and a piston element guided therein which is connected to the throttle valve.
the pressure chamber thus formed is connected to the intake manifold behind the throttle valve and to the ambient pressure via an adjustable throttle.
the piston element is tracked via the reduced air pressure in the pressure chamber, which is established as a balance of intake manifold pressure via the throttle, so that the throttle valve opens completely.
this solution offers no possibility of setting the delay as a function of further parameters, such as, for example, the operating parameters of the internal combustion engine. It is also doubtful whether a defined fuel metering is actually possible with such an adjustment of the air supply in order to maintain a stoichiometric fuel / air ratio.
the invention has for its object to provide a method for adjusting the movement of a power-changing control element of an internal combustion engine, in which the setting can be defined depending on various parameters, the size of the adjustment of the control element and thus the air mass flow to be introduced into the combustion chamber or the amount of fuel to be injected in the diesel engine takes place via a manipulated variable formed as a function of the position of the accelerator pedal.
variables of the road condition can also be included in the determination of the optimal values for the change in output in order, for example, to prevent the wheels from spinning. It is also conceivable to incorporate the driving behavior of a person who often drives the motor vehicle. This is done, for example, by means of a learning process in which it is recorded whether the person is driving sportily or with less changes in performance. However, it is also possible to provide a corresponding selector switch.
the power-changing control element is an adjustment element arranged in an air supply path of an internal combustion engine, for example a throttle valve arranged in an intake manifold, and if a control variable is determined as a function of the position of the accelerator pedal, the optimal value for the power change is determined as the optimal value for the power change Air mass flow change determined proactively. From the optimal air mass flow change and the control variable for the air mass flow, a manipulated variable for the control element adjusting the air mass flow is calculated for the following work cycles.
each air supply path has a time behavior, so that it is advantageous to take into account the inverse transmission behavior of the air supply path for the air mass flow when calculating the manipulated variable for the control element that adjusts the air mass flow, for example the throttle valve.
the power-variable control element is an adjusting element that sets an injection quantity of the fuel and a control variable for the fuel quantity to be injected is determined as a function of the position of the accelerator pedal
an optimal fuel quantity change per is at least dependent on the operating variables of the internal combustion engine as an optimal value for the power change Work cycle determined proactively. From this optimal change in fuel quantity and the control variable for the fuel quantity to be injected, a manipulated variable for the control element adjusting the fuel quantity is now calculated for the following work cycles.
variable-performance control element load changes are prevented by too rapid a reaction of the variable-performance control element. If parameters of the road condition are taken into account, for example via wheel slip, anti-slip control can also be implemented in a simple manner. In addition, it is possible to reduce fuel consumption and pollutant emissions in dynamic processes such as acceleration without reducing performance.
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 an actuating device 5, for example a stepping motor, corresponding to different parameters for generating a defined air mass flow ⁇ l in the intake manifold 3 is set.
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 sensor 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 corresponds to the signal S pedal representing the accelerator pedal position , the control device 7 generates a controlled variable R for the control device 5 of the throttle valve 4, which is passed on to the control device 5 for setting the throttle valve angle proportionally or according to a damping function according to conventional methods.
this can lead to performance shocks which have a negative effect on driving comfort.
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 as well as the engaged gear G are supplied.
further parameters are conceivable.
the control device 7 calculates an optimal air mass flow change ⁇ ⁇ 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 ⁇ ⁇ 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 flap 4 is determined from the optimal air mass flow change in conjunction with the control variable R for the air mass flow ⁇ 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.
the curves of the throttle valve angle ⁇ set by the method, the correspondingly generated intake manifold pressure p suction and the fuel / air ratio ⁇ as a function of the signal S pedal are shown in FIG. 2 due to a sudden operation of the accelerator pedal.
the large opening angle ⁇ occurring at the beginning of the throttle valve actuation results from the consideration of the inverse transfer function of the intake manifold.

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)
Combined Controls Of Internal Combustion Engines (AREA)
Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Output Control And Ontrol Of Special Type Engine (AREA)

EP96102704A 1995-04-29 1996-02-23 Procédé pour ajuster le mouvement d'un organe de réglage variateur de charge Expired - Lifetime EP0740058B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19515855A DE19515855A1 (de)	1995-04-29	1995-04-29	Verfahren zum Einstellen der Bewegung eines leistungsverändernden Regelorgans
DE19515855		1995-04-29

Publications (3)

Publication Number	Publication Date
EP0740058A2 true EP0740058A2 (fr)	1996-10-30
EP0740058A3 EP0740058A3 (fr)	1998-12-09
EP0740058B1 EP0740058B1 (fr)	2003-05-07

Family

ID=7760729

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96102704A Expired - Lifetime EP0740058B1 (fr)	1995-04-29	1996-02-23	Procédé pour ajuster le mouvement d'un organe de réglage variateur de charge

Country Status (4)

Country	Link
US (1)	US5642708A (fr)
EP (1)	EP0740058B1 (fr)
DE (2)	DE19515855A1 (fr)
ES (1)	ES2196101T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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 (fr) *	2001-02-20	2002-08-28	Sagem S.A.	Procédé et dispositif de pilotage d'un débit de gaz passant par un organe d'étranglement
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

Family Cites Families (15)

* Cited by examiner, † Cited by third party
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
JPH0621584B2 (ja) *	1982-07-09	1994-03-23	マツダ株式会社	エンジンのスロツトル弁制御装置
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
JPH0299439A (ja) *	1988-10-05	1990-04-11	Hitachi Ltd	自動車のキヤラクタライジング装置及びその登録方法
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
JPH0596977A (ja) *	1991-10-09	1993-04-20	Hitachi Ltd	道路状況認識方式
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/fr 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

Also Published As

Publication number	Publication date
DE59610416D1 (de)	2003-06-12
ES2196101T3 (es)	2003-12-16
US5642708A (en)	1997-07-01
EP0740058B1 (fr)	2003-05-07
EP0740058A3 (fr)	1998-12-09
DE19515855A1 (de)	1996-10-31

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