EP0464041A1 - Process for determining at least one end position of an adjusting device in a motor vehicle. - Google Patents
Process for determining at least one end position of an adjusting device in a motor vehicle.Info
- Publication number
- EP0464041A1 EP0464041A1 EP19900904243 EP90904243A EP0464041A1 EP 0464041 A1 EP0464041 A1 EP 0464041A1 EP 19900904243 EP19900904243 EP 19900904243 EP 90904243 A EP90904243 A EP 90904243A EP 0464041 A1 EP0464041 A1 EP 0464041A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adjusting device
- end position
- control
- control variable
- stored
- 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
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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2409—Addressing techniques specially adapted therefor
- F02D41/2412—One-parameter addressing technique
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
-
- 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
- F02D11/106—Detection of demand or actuation
-
- 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
- F02D2250/16—End position calibration, i.e. calculation or measurement of actuator end positions, e.g. for throttle or its driving actuator
Definitions
- the invention relates to a method for determining at least one end position of an adjusting device in a motor vehicle according to the preamble of patent claim 1.
- Such a method for determining at least one end position of an adjusting device in a motor vehicle is known from DE OS 31 49 361.
- An adjusting device for controlling the motor power with two end positions is described there, the adjusting device first being driven in the direction of the first end position for determining and storing these two end positions of the adjusting device and the position of the adjusting device being stored as the end position after a predetermined adjustment time has elapsed becomes.
- the adjusting device is then driven in the direction of the second end position, the position of the adjusting device being stored as the second end position after a further predetermined period of time.
- the actuating variable of the adjusting device can be increased and thus the adjusting device can be destroyed or damaged.
- the invention is therefore based on the object of avoiding the abovementioned disadvantages in a method of the type mentioned at the outset. This object is achieved by the features characterized in claim 1.
- the method according to the invention is not only limited to its use for determining end positions of the power actuator of an internal combustion engine / but can be used wherever there are controllable adjusting devices, the end positions of which have to be determined for further information.
- FIG. 1 denotes a block representation of an exemplary embodiment selected for reasons of clarity, in which the method shown in FIGS. 2-4 can be used on the basis of flow diagrams.
- the adjusting device is also understood below to mean the electrically actuable injection pump mechanism, the method according to the invention being of particular importance as a result of the flexible actuating motor stops.
- FIG. 1 shows an internal combustion engine 10 with an intake pipe 12 and an electrically actuable adjusting device 14.
- This adjusting device 14 comprises a throttle valve 16 located in the intake pipe 12, which has a symbolically illustrated lower end position 18 and a likewise symbolically illustrated upper end position ⁇ lung 20 has.
- the lower end position 18 corresponds to the idle position of the throttle valve, while the upper end position 20 corresponds to the full load position of the throttle valve.
- the adjusting device 14 comprises an electrically actuated servomotor 22, which is connected to the throttle valve 16 via a connecting piece 24 such that it changes the position of the throttle valve as a function of a control variable.
- the adjusting device 14 consists of a position sensor 26, with the aid of which the position of the servomotor 22 and / or the throttle valve 16 can be detected.
- the adjusting device 14 essentially has an input 28 and an output line 30.
- the adjusting device 14 is supplied with the control variable formed by a control device 32 as a function of operating parameters via its input 28.
- the output line 30 returns a signal formed by the position sensor 26 to the control unit 32 and corresponds to the respective position of the adjusting device.
- the control unit 32 has the control variable via its input 34, the position signal of the adjusting device 14 via the input 36, the position of an accelerator pedal 40 via the input 38, and further operating parameters, such as engine temperature, speed, driving speed and / or input, via the inputs 39 ⁇ gear, etc., depending on which the control variable, which is output from the control unit via its output 42 to the adjusting device 14, is formed and a start signal is fed via the input 44, which is connected to an ignition switch 46.
- the control device 32 receives a start signal via its input 44, which initiates the circuit elements of the control device and starts the method according to the invention.
- the control device 32 forms a control variable via the output 42 determines the direction of movement or the position of the adjusting device 14 and thus controls the power actuator, in the case of the exemplary embodiment the throttle valve.
- control variable described above is the motor current, the direction of movement of the adjusting device 14 being determined by the current direction, or one of the control voltage or, if the servomotor is designed accordingly a control variable provided a duty cycle, an average of this control variable also being able to be used as the feedback control variable.
- FIG. 2 shows a flowchart which shows the method in context.
- the process is started.
- function block 50 all the measures are summarized which serve for initialization or for loading the electronic switching elements of the control device 32.
- the lower stop of the power actuator is approached in function block 52 and, after storing the starting value of the actuator position, the position is determined in accordance with the method according to the invention.
- the query block 54 After execution of the function block 52 and commencement of normal driving of the motor vehicle, it is determined in the query block 54 whether the power actuator is in the vicinity of its full load position. This query is repeated until, in driving operation, the power actuator approximately assumes its full load position in accordance with the driver's request. This full load position is then approached in function block 56 and, after the starting value has been stored, the position of the adjustment device 14 determines.
- the start-up value can also be saved and the position can be determined exclusively in accordance with the method according to the invention.
- FIGS. 3 and 4 can also be used individually, regardless of the integration in FIG. 2.
- the method according to the invention is presented using the example of the lower stop of an electrically actuable throttle valve.
- the control variable is monitored and compared with a predetermined threshold value, which is derived from an allowable limit value of the control variable. If the motor current is used as the control variable, this limit value results from the maximum permissible current. Similar limit values can also be formed for the other possible control variables obtained from voltage or duty cycle.
- function block 60 of FIG. 3 it is checked whether the respective control variable has reached the predetermined threshold value and has held it for a predetermined period of time. If this is not the case, the query is repeated. However, if the control variable has assumed the predetermined value and held it for a predetermined time, it is checked in function block 62 whether the adjusting device 14 is in the region of its lower end position.
- a query can be made on the one hand by comparing the measured position of the adjusting device with a threshold value, and on the other hand by comparing a stop switch (eg idle or full load switch of the throttle valve) with the position of the Adjustment device 14 can be realized.
- a stop switch eg idle or full load switch of the throttle valve
- the current position of the adjusting device 14 is stored as the lower end position in the step of the function block 66. However, if one of the query conditions is not met, the steps shown in FIG. 3 can be repeated. The method shown in FIG. 3 can take place after the previously running, known from the prior art approach to the lower end position and storage of the corresponding position value.
- FIG. 4 shows a further embodiment of the method according to the invention using the example of the upper stop of the power actuator of an internal combustion engine, in particular a throttle valve or an injection pump.
- the upper stop is approached during driving operation or also immediately after the determination of the lower stop before the start of the operating cycle and can be determined in accordance with the method shown in FIG.
- the first approach to the upper stop takes place with high torque to ensure that the upper stop is reached. If this upper stop is made of flexible material, it is e.g. B. around a rubber buffer, the position value adopted when moving off for the first time is too large.
- function block 70 of FIG. 3 when the throttle valve reaches the full load position, it is checked whether a run has already taken place during the operating cycle.
- step 74 it is determined in function block 72 whether the upper stop has already been reached for the first time. If not, this is done in step 74. If this has already happened, the control variable is set to a pre-defined certain value that is derived from the permissible limit minus the tolerance values. As a result, the adjusting device 14 is brought into a defined position, in particular if the stop consists of flexible material which resets the adjusting device. Flexible material can also be understood to mean the usual return spring.
- query block 78 it is determined whether the position of the adjusting device 14 is in the vicinity of the upper stop, that is, whether the position of the adjusting device 14 exceeds a certain limit value or that the position of the adjusting device 14 reaches a certain limit value when the full-load switch is confirmed Has. If this is not the case, the limitation of the control variable is withdrawn and the steps outlined above are repeated (function block 79). If the position of the adjusting device 14 is in the area of the end position, it is checked in function block 80 whether a predetermined time has expired.
- the methods according to the invention can, if desired, also be carried out several times during an operating cycle, e.g. B. to compensate for a temperature drift.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
Selon un procédé pour déterminer au moins une position terminale d'un dispositif d'ajustement (14) dans un véhicule automobile, le dispositif d'ajustement (14) peut être commandé dans la direction de ses positions terminales. Afin de déterminer les positions terminales du dipositif d'ajustement (14), le dispositif d'ajustement (14) est amené jusqu'à la position terminale en question et lorsqu'il atteint cette position terminale, sa position est enregistrée pour représenter ladite position terminale. La position du dispositif d'ajustement correspondant à chaque position terminale est enregistrée lorsque la valeur de commande du dispositif d'ajustement atteint un niveau prédéterminé, et/ou lorsqu'elle se maintient à ce niveau pendant une durée prédéterminée. On applique ce procédé de manière avantageuse afin de déterminer les positions terminales d'un organe de réglage de la puissance du moteur à combustion interne d'un véhicule automobile.According to a method for determining at least one end position of an adjustment device (14) in a motor vehicle, the adjustment device (14) can be controlled in the direction of its end positions. In order to determine the end positions of the adjustment device (14), the adjustment device (14) is brought to the end position in question and when it reaches this end position, its position is recorded to represent said position terminal. The position of the adjustment device corresponding to each end position is recorded when the control value of the adjustment device reaches a predetermined level, and / or when it is maintained at this level for a predetermined duration. This method is advantageously applied in order to determine the end positions of a member for adjusting the power of the internal combustion engine of a motor vehicle.
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90904243T ATE82364T1 (en) | 1989-03-25 | 1990-03-07 | METHOD FOR DETERMINING AT LEAST ONE END POSITION OF AN ADJUSTMENT DEVICE IN A MOTOR VEHICLE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3909905A DE3909905A1 (en) | 1989-03-25 | 1989-03-25 | METHOD FOR DETERMINING AT LEAST ONE END OF AN ADJUSTMENT IN A MOTOR VEHICLE |
| DE3909905 | 1989-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0464041A1 true EP0464041A1 (en) | 1992-01-08 |
| EP0464041B1 EP0464041B1 (en) | 1992-11-11 |
Family
ID=6377235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90904243A Expired - Lifetime EP0464041B1 (en) | 1989-03-25 | 1990-03-07 | Process for determining at least one end position of an adjusting device in a motor vehicle |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5213078A (en) |
| EP (1) | EP0464041B1 (en) |
| JP (1) | JP2778827B2 (en) |
| KR (1) | KR0148801B1 (en) |
| DE (2) | DE3909905A1 (en) |
| WO (1) | WO1990011442A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5854545A (en) * | 1993-10-15 | 1998-12-29 | Vdo Adolf Schindling Ag | Method for the positioning of an actuator |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041505C2 (en) * | 1990-12-22 | 2000-06-08 | Bosch Gmbh Robert | Method and device for detecting a variable size for an internal combustion engine on a motor vehicle |
| DE4135913C2 (en) * | 1991-10-31 | 2003-09-18 | Bosch Gmbh Robert | Device for controlling an adjustment device in a vehicle equipped with a drive unit |
| DE4221768C2 (en) * | 1992-07-02 | 2002-11-07 | Bosch Gmbh Robert | Method and device for controlling an adjusting device in a vehicle |
| DE4231227A1 (en) * | 1992-09-18 | 1994-03-24 | Bosch Gmbh Robert | Hysteresis-free control of positioner in motor vehicle - involves periodic alternation of values of controlling signal adjusted by feedback from position-sensing device |
| JPH06159125A (en) * | 1992-11-19 | 1994-06-07 | Zexel Corp | Injection timing adjusting device for electronic fuel injection unit |
| JP2841013B2 (en) * | 1993-09-07 | 1998-12-24 | 本田技研工業株式会社 | Sub-throttle valve fully closed learning device |
| DE4336038A1 (en) * | 1993-10-22 | 1995-04-27 | Vdo Schindling | Method for operating a throttle valve adjustment device |
| DE4340372A1 (en) * | 1993-11-26 | 1995-06-01 | Vdo Schindling | Recognition of idling condition of IC engine |
| DE4420122B4 (en) * | 1994-06-09 | 2006-01-26 | Robert Bosch Gmbh | Method and device for determining an end position of an adjusting device in vehicles |
| DE4432881B4 (en) * | 1994-09-15 | 2005-01-27 | Robert Bosch Gmbh | Method and device for detecting the position of an adjusting device in vehicles |
| FR2748061B1 (en) * | 1996-04-26 | 1998-05-22 | Renault | METHOD FOR ADJUSTING THE POSITION SENSOR OF AN INJECTION PUMP |
| DE19801187B4 (en) * | 1998-01-15 | 2007-07-12 | Robert Bosch Gmbh | Method and device for operating an internal combustion engine |
| US6687602B2 (en) * | 2001-05-03 | 2004-02-03 | General Motors Corporation | Method and apparatus for adaptable control of a variable displacement engine |
| US6651621B2 (en) | 2001-12-06 | 2003-11-25 | Ford Global Technologies, Llc | Throttle valve position determination using accelerator pedal position |
| DE10229238B4 (en) * | 2002-06-28 | 2021-09-09 | Robert Bosch Gmbh | Method and device for regulating the position of an actuating element |
| DE10249092B4 (en) | 2002-10-21 | 2006-04-13 | Faurecia Autositze Gmbh & Co. Kg | Vehicle seat, in particular for a motor vehicle |
| DE102005052033A1 (en) * | 2005-10-31 | 2007-05-03 | Robert Bosch Gmbh | Operating method for internal combustion engine, involves supplying of air mass flow to internal combustion engine whereby offset value of adjusting position is adjusted by offset value for air mass flow |
| FR2916239B1 (en) * | 2007-05-14 | 2013-10-11 | Renault Sas | METHOD AND DEVICE FOR ACQUIRING A REFERENCE VALUE OF A CONTROL VALVE OF AN OPERATING PARAMETER OF AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE |
| ATE442620T1 (en) * | 2007-06-08 | 2009-09-15 | Elster Kromschrider Gmbh | METHOD FOR AUTOMATICALLY CALIBRATING AN ADJUSTING DEVICE FOR AN ADJUSTABLE FLUID SUPPLY |
| DE102008061010A1 (en) * | 2008-12-08 | 2010-06-10 | Siemens Building Technologies Hvac Products Gmbh | Method for setting and controlling an actuator for a burner |
| JP5878460B2 (en) * | 2012-12-21 | 2016-03-08 | トヨタ自動車株式会社 | Engine control device |
| JP5583258B1 (en) | 2013-09-26 | 2014-09-03 | 三菱電機株式会社 | Throttle learning control device |
| DE102013114721A1 (en) * | 2013-12-20 | 2015-06-25 | Minebea Co., Ltd. | Method for operating an actuator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56107926A (en) * | 1980-01-31 | 1981-08-27 | Nissan Motor Co Ltd | Device for detecting entire closing of throttle valve of internal conbustion engine |
| DE3149361C2 (en) * | 1981-12-12 | 1986-10-30 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Electric accelerator pedal |
| JPS58122326A (en) * | 1982-01-14 | 1983-07-21 | Honda Motor Co Ltd | Detection method of throttle valve idle opening of internal-combustion engine |
| JPS59190442A (en) * | 1983-04-11 | 1984-10-29 | Nissan Motor Co Ltd | Accelerator controller for vehicle |
| DE3510176A1 (en) * | 1984-08-16 | 1986-02-27 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTRONIC DRIVE PEDAL FOR A MOTOR VEHICLE |
| DE3445983A1 (en) * | 1984-12-17 | 1986-06-19 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD FOR DETECTING AN EXTREME VALUE POSITION OF A MOVING PART |
| IT1182508B (en) * | 1985-07-12 | 1987-10-05 | Weber Spa | SELF-DEFINITION SYSTEM OF THE MINIMUM OPENING POSITION OF A VALVE COMMANDED BY AN ACCELERATOR FOR THE SUPPLY TO AN ENDOTHERMIC MOTOR |
| JP2525412B2 (en) * | 1987-06-11 | 1996-08-21 | マツダ株式会社 | Engine throttle valve opening detection device |
-
1989
- 1989-03-25 DE DE3909905A patent/DE3909905A1/en not_active Withdrawn
-
1990
- 1990-03-07 KR KR1019910701191A patent/KR0148801B1/en not_active Expired - Fee Related
- 1990-03-07 EP EP90904243A patent/EP0464041B1/en not_active Expired - Lifetime
- 1990-03-07 DE DE9090904243T patent/DE59000473D1/en not_active Expired - Lifetime
- 1990-03-07 JP JP2504101A patent/JP2778827B2/en not_active Expired - Lifetime
- 1990-03-07 WO PCT/DE1990/000163 patent/WO1990011442A1/en not_active Ceased
- 1990-03-07 US US07/761,989 patent/US5213078A/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9011442A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5854545A (en) * | 1993-10-15 | 1998-12-29 | Vdo Adolf Schindling Ag | Method for the positioning of an actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59000473D1 (en) | 1992-12-17 |
| KR920701642A (en) | 1992-08-12 |
| US5213078A (en) | 1993-05-25 |
| JPH04503846A (en) | 1992-07-09 |
| EP0464041B1 (en) | 1992-11-11 |
| DE3909905A1 (en) | 1990-09-27 |
| JP2778827B2 (en) | 1998-07-23 |
| WO1990011442A1 (en) | 1990-10-04 |
| KR0148801B1 (en) | 1998-10-01 |
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