EP1507966B1 - Verfahren und vorrichtung zur regelung einer betriebskenngrösse in einem kraftfahrzeug - Google Patents
Verfahren und vorrichtung zur regelung einer betriebskenngrösse in einem kraftfahrzeug Download PDFInfo
- Publication number
- EP1507966B1 EP1507966B1 EP03724891A EP03724891A EP1507966B1 EP 1507966 B1 EP1507966 B1 EP 1507966B1 EP 03724891 A EP03724891 A EP 03724891A EP 03724891 A EP03724891 A EP 03724891A EP 1507966 B1 EP1507966 B1 EP 1507966B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- variable
- operating state
- controller
- size
- regulator
- 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 21
- 230000001105 regulatory effect Effects 0.000 title claims 3
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 description 9
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 101100002669 Arabidopsis thaliana ADT1 gene Proteins 0.000 description 1
- 101100002673 Arabidopsis thaliana ADT3 gene Proteins 0.000 description 1
- 101100463170 Schizosaccharomyces pombe (strain 972 / ATCC 24843) pdt1 gene Proteins 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009466 transformation 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
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/002—Electric control of rotation speed controlling air supply
-
- 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
- F02D41/16—Introducing closed-loop corrections for idling
Definitions
- the invention relates to a method and a device for controlling a Operating characteristic in a motor vehicle according to the preambles of the independent Claims.
- a method and apparatus are for example from US Pat. No. 6,062,196.
- Another method and another device for controlling an operating characteristic in one Motor vehicle are known for example from DE 41 12 848.
- Speed control There will be one Speed control described in which a controller is a first size and a controller specify a second size.
- the first size is this Output signal of the actual idle controller, starting from the Control deviation, d. H. the difference between the setpoint and the actual value for the Speed, is specified.
- the second size is one of the Accelerator pedal position or dependent on the driver's request size, the first size is superimposed additively. This means that the controller intervention of the idle controller becomes the Control variable switched from the accelerator pedal. It acts starting from the Emptying the driver's intervention increasing the engagement of the idle controller. One Dead path on the accelerator pedal, especially at low accelerator pedal positions, thereby avoided.
- a controller in a method and a device for controlling a Operating size in a vehicle, a controller a first size and a controller, a specify second size, wherein in at least a first operating state a Control variable starting from the first and the second size with a first rule is predetermined, and in at least a second operating state, the manipulated variable, predetermined from the first and the second size with a second rule is a jump-free transition between the different operating states possible. Daber is the manipulated variable in a first operating state by adding the first and the second size formed.
- the procedure is used in a controller, the speed of the Internal combustion engine to a target value.
- the procedure can also with other controllers are used.
- the second size characterizes the Driver's request. This means this second size is based on the driver's request specified. To form this size, for example, the output signal of a Operating element, in particular the accelerator pedal, the output signal of a Fahr niereglers or the output signal of a Fahr niesbeskyns be used.
- the manipulated variable is starting of the first and the second size by a maximum selection or a Minimum selection formed.
- Figure 1 is a block diagram of the procedure according to the invention and Figures 2 and 3 different embodiments of the method according to the invention.
- a regulator is denoted by 100. This is supplied by a default 110 a signal that the Control deviation of a variable to be controlled characterized.
- the output signal the Also referred to as a control intervention or first size U, the controller 100 arrives One to a maximum selection 120 and the other to a first input of a Switching means 130.
- a controller 140 which has a control variable S, which is also known as second size is specified, pretends.
- the control variable S reaches the Maximum selection 120, a join point 150 and a Junction point 160.
- the output signal of the maximum selection 120 also arrives to the second input of the node 150.
- the output signal T of Link point 150 reaches a second input of the switching means 130.
- the Switching means 130 is driven by a drive 170.
- the output signal V of Switching means 130 reaches a second input of the node 160. With the output signal Y of the node 160 is an actuator 180th applied.
- the controller 100 is preferably a speed controller that controls the Speed of the internal combustion engine adjusts to a predetermined value. It is the inventive approach regardless of the behavior of the controller, the preferably PI, PID and / or PDT1 behavior. The procedure can also with other controllers, such as state controller first or higher Order or fuzzy controllers are used.
- the default 110 provides a signal representative of the control deviation, i. H. the difference between the speed reference and the actual speed signal equivalent. Based on this control deviation, the controller forms an output signal U.
- the controller 140 provides a control amount S.
- this Control variable S represents the driver's request, d. H. this size S is preferably starting from the accelerator pedal position and other operating parameters such as for example, the speed specified. In particular, this is a so-called Driving behavior or an accelerator pedal map or more such maps used.
- Both the first and second sizes are fed to the maximum selector 120.
- the larger of the two signals then passes to the node 150, where of this signal, the control variable S is subtracted.
- the intermediate size T thus formed then passes to the second input of the switching means 130.
- the first size U passes to the first input of the switching means 130.
- Depending on the switch position of Switching means thus passes the output signal of the controller U or the intermediate size T. to the node 160, where it is added to the control quantity S to the To make control variable.
- the switching means 130 If the switching means 130 is in the marked position, then the first Size and the second size S additively linked. Ie. the manipulated variable results by adding the first quantity U and the second size S.
- the switching means 130 is located in the dashed line position, so that is Signal U of the controller selected as manipulated variable Y. If, on the other hand, the control variable S is greater as the signal U, the control quantity S is selected as the manipulated variable Y. By Driving the switching means 130, the rule, with the manipulated variable Y starting is formed by the first and second sizes are selected.
- the driver 170 controls the switching means 130 depending on the operating state of Internal combustion engine accordingly.
- the Controller 100 as idle controller works that the variables are superimposed additively.
- the switching means 130 are in the position shown. Does the Regulator as a cruise control, so brings the control 170 that Switching means in the dashed line position. This means, as needed for the output signal of the controller of the control variable additively or via a maximum selection connected.
- the actuator 180 is preferably an actuator for influencing the Power output of an internal combustion engine. These are, for example, the Throttle of a gasoline powered internal combustion engine and around quantity-determining actuator, which determines the amount of fuel injected at a Diesel or a direct injection internal combustion engine.
- the switching means 130 and the driver 170 may be between an additive Connection in the first operating states such as a speed control in Idle mode and a connection over a maximum limit in second Operating conditions, such as a cruise control or a Working speed control can be switched.
- an additive Connection in the first operating states such as a speed control in Idle mode
- second Operating conditions such as a cruise control or a Working speed control can be switched.
- an initialization of the controller takes place in order to jump to the manipulated variable Y in the structure interconnection avoid. It is provided that the controller 100 is initialized such that the Output size U is chosen so that before and after switching the same Manipulated variable Y results. This means, starting from the old manipulated variable Y (K-1), the before the switchover, the control variable S (K - 1) before switching and the old Size U (K-1), which existed before switching, becomes the new output of the Regulator U (K) is calculated. In this case, in an intermediate step, the intermediate variable T (K) calculated.
- T (K) MAX [S (K-1), U (K-1)] -S (K-1)
- U (K) U (K-1) + [Y (K-1) -T (K)]
- the new value for the intermediate variable T (K) is calculated.
- the starting value U (K) is calculated on the basis of this variable.
- FIG. 2 is a flow chart to illustrate the invention Procedure shown.
- a first step 200 the calculation of the Control variable S.
- a second step 210 the calculation of the Initialization values of the controller 100. D. h. it will be the starting value of the UK Output of the controller 100 calculates that should be available after switching. This is done, as stated above, starting from the type of switching and the above indicated sizes.
- the controller 100 is initialized accordingly.
- the new output of regulator U K + 1 calculated.
- the connection size V and in step 250 the manipulated variable Y is calculated.
- step 200 the output U of the controller changes due to the Calculation in step 210 not.
- the calculation of the new controller output follows also with every program run. Ie. There is also a recalculation at a structure switchover.
- FIG. 3 shows a further embodiment. This embodiment differs essentially from the figure 2 in that after step 200 a query 300 is made to check if a structure switch, i. H. a transition from the first to the second or a transition from the second to the first Operating state is done. If such a transition has not occurred, then only the step 230 processed. If such a transition has taken place, then as shown in FIG 2, the steps 210, 220 and 230 processed. This means the calculation of Initialization values only occur if a structure switchover occurs. The Recalculation of the output variable of the regulator U takes place independently of whether a Structural transformation took place, i. H. the controller is always active dynamically.
- a structure switch i. H. a transition from the first to the second or a transition from the second to the first Operating state is done. If such a transition has not occurred, then only the step 230 processed. If such a transition has taken place, then as shown in FIG 2, the steps 210, 220 and 230 processed.
- step 230b omitted is, d. H. that the recalculation of the controller takes place only if no Structure change takes place.
- the calculation of the initial values for the initialization of the Controller only takes place during a structure changeover.
- the calculation of the output signals of the regulator UK + 1 only takes place if no changeover has taken place.
- a minimum selection may be provided instead of the maximum selection 120 . This is especially suitable if the regulator performs a final speed control or a maximum speed limit. Of Furthermore, it can alternatively be provided that the connection with negative Sign on the control variable S acts.
- the method is not limited to speed control. It can also be used with other regulations.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
Figur 1 ein Blockdiagramm der erfindungsgemäßen Vorgehensweise und
Figur 2 und 3 verschiedene Ausgestaltungen des erfindungsgemäßen Verfahrens.
Claims (8)
- Verfahren zur Regelung einer Betriebsgröße in einem Fahrzeug, wobei ein Regler eine erste Größe (U) und eine Steuerung, eine zweite Größe (S) vorgeben, wobei in wenigstens einem ersten Betriebszustand eine Stellgröße (Y) ausgehend von der ersten und der zweiten Größe mit einer ersten Vorschrift und in wenigstens einem zweiten Betriebszustand ausgehend von der ersten und der zweiten Große mit einer zweiten Vorschrift vorgegeben wird, dadurch gekennzeichnet, dass in dem ersten Betriebszustand die Stellgröße durch Addition der ersten und der zweiten Größe vorgegeben wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in dem wenigstens zweiten Betriebszustand die Stellgröße ausgehend von der ersten und der zweiten Größe durch eine Maximalauswahl oder eine Minimalauswahl vorgegeben wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet dass die Stellgröße die Leistungsabgabe einer Brennkraftmaschine, die das Fahrzeug antreibt, beeinflusst.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Regler eine Drehzahl der Brennkraftmaschine auf einen Sollwert einregelt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die zweite Größe einen Fahrerwunsch charakterisiert.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass beim Übergang von dem einen in den anderen Betriebszustand ein Startwert für den Regler vorgegeben wird.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass bei dem Übergang von dem ersten in den zweiten Betriebszustand und/oder beim Übergang von dem zweiten in den ersten Betriebszustand der Startwert für den Regler berechnet wird.
- Vorrichtung zur Regelung einer Betriebsgröße in einem Fahrzeug, wobei ein Regler eine erste Größe (U) und eine Steuerung, eine zweite Größe (S) vorgeben, mit Mittel, die in wenigstens einem ersten Betriebszustand eine Stellgröße (Y) ausgehend von der ersten und der zweiten Größe mit einer ersten Vorschrift und in wenigstens einem zweiten Betriebszustand ausgehend von der ersten und der zweiten Größe mit einer zweiten Vorschrift vorgegeben, dadurch gekennzeichnet, dass die Mittel in dem ersten Betriebszustand die Stellgröße durch Addition der ersten und der zweiten Größe vorgegeben.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002121380 DE10221380A1 (de) | 2002-05-14 | 2002-05-14 | Verfahren und Vorrichtung zur Regelung einer Betriebskenngröße in einem Kraftfahrzeug |
DE10221380 | 2002-05-14 | ||
PCT/DE2003/001520 WO2003095816A1 (de) | 2002-05-14 | 2003-05-12 | Verfahren und vorrichtung zur regelung einer betriebskenngrösse in einem kraftfahrzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1507966A1 EP1507966A1 (de) | 2005-02-23 |
EP1507966B1 true EP1507966B1 (de) | 2005-11-30 |
Family
ID=29285375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03724891A Expired - Lifetime EP1507966B1 (de) | 2002-05-14 | 2003-05-12 | Verfahren und vorrichtung zur regelung einer betriebskenngrösse in einem kraftfahrzeug |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1507966B1 (de) |
DE (2) | DE10221380A1 (de) |
WO (1) | WO2003095816A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4112848C2 (de) * | 1991-04-19 | 2001-11-15 | Bosch Gmbh Robert | System zur Regelung der Leerlaufdrehzahl einer Brennkraftmaschine |
EP0593800B1 (de) * | 1992-10-19 | 1995-12-27 | Siemens Aktiengesellschaft | Verfahren zum Betrieb einer Brennkraftmaschine im Vollastbetrieb |
DE19546108A1 (de) * | 1995-12-11 | 1997-06-12 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Verstelleinrichtung in einem Fahrzeug |
DE19748128A1 (de) * | 1997-10-31 | 1999-05-06 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung eines Stellelements einer Antriebseinheit |
-
2002
- 2002-05-14 DE DE2002121380 patent/DE10221380A1/de not_active Withdrawn
-
2003
- 2003-05-12 DE DE50301811T patent/DE50301811D1/de not_active Expired - Lifetime
- 2003-05-12 EP EP03724891A patent/EP1507966B1/de not_active Expired - Lifetime
- 2003-05-12 WO PCT/DE2003/001520 patent/WO2003095816A1/de not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE10221380A1 (de) | 2003-11-27 |
EP1507966A1 (de) | 2005-02-23 |
WO2003095816A1 (de) | 2003-11-20 |
DE50301811D1 (de) | 2006-01-05 |
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