EP3568582A1 - Motorsteuerung, motorsteuerungsverfahren und entsprechendes computerprogramm - Google Patents
Motorsteuerung, motorsteuerungsverfahren und entsprechendes computerprogrammInfo
- Publication number
- EP3568582A1 EP3568582A1 EP17822653.6A EP17822653A EP3568582A1 EP 3568582 A1 EP3568582 A1 EP 3568582A1 EP 17822653 A EP17822653 A EP 17822653A EP 3568582 A1 EP3568582 A1 EP 3568582A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- torque
- control
- shaping
- idle
- request
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3064—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes
- F02D41/307—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes to avoid torque shocks
-
- 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
-
- 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
-
- 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
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
-
- 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
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
-
- 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
-
- 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
- F02D2250/21—Control of the engine output torque during a transition between engine operation modes or states
Definitions
- the invention relates to a motor control, an engine control method and a
- idle speed control adjusts the idle speed to a constant value to prevent engine stall due to low engine speed
- Torque request the idle control with high priority or high dynamics are implemented. This is particularly the case when the torque request to the
- Internal combustion engine in addition to the idle control and the driver's request is also influenced by other components.
- torque shaping One aspect which has an influence on the torque demand on the internal combustion engine is the so-called torque shaping.
- the operation of the vehicle should be made as comfortable as possible for the driver. Therefore, torque requirements are shaped so suitable that sets a high comfort feeling for the driver.
- torque shaping the engine torque is limited in dependence on the driving speed and the speed in the gradient to make driving comfortable.
- Idle control and the sense of comfort come. For example, driving comfort in the area close to the idling area also drops, if not at all, the risk of engine dying consists. On the other hand, there may be vibrations in the engine speed when the torque conversion is formed too much in the area close to idling and thus the
- Idling controller with high dynamics tries to regulate against an increasing speed.
- German Offenlegungsschrift DE 10 2004 060 527 A1 also discloses a motor controller which, in operating states of the drive unit in which a load compensation is required, for example in order to prevent the drive unit from running out, has a predefined value
- the object of the present invention is to provide a motor control system and a corresponding motor control method which at least partially overcome the abovementioned disadvantages.
- an engine controller in particular for a drive motor of a motor vehicle, is provided, which is configured to shape the torque request of an idle control as a function of a situation detection.
- Idle control may be, for example, a speed control that prevents the speed of an engine, in particular a motor vehicle engine, falls below a critical speed at which the engine dies or threatens to die.
- the engine is in particular an internal combustion engine.
- the motor vehicle is in particular a trackless agricultural vehicle, for example a passenger car or a truck.
- a weighting of torque requirements can take place under comfort and performance aspects.
- the torque shaping can be carried out in a method known to the person skilled in the art for
- Torstenformung based, for example, on a method that limits the torque gradient to increase the ride comfort.
- the engine control is set up in such a way that a continuous (or stepless) transition between idle control and
- Torque shaping takes place.
- a functionally continuous, stepless transition between the two extreme states can be generated.
- the transition between the two extreme states can be designed so that the parameterization of the idle control and the torque shaping are decoupled. This has the advantage that the two areas can be individually set to the respective optimum.
- the engine controller is configured to determine a desired torque based on a driver's desired torque and the torque request of the idle control.
- This setpoint torque can serve, for example, as an output variable for a setpoint torque of the vehicle engine to be set by the engine control.
- Torque request made the idle control and in a second Extreme state is a maximum torque shaping of the torque request of
- the engine control is set up to determine a weighting on the basis of input variables of the situation detection, which determines to what extent a torque shaping of the torque requirement of the idling control takes place.
- this weighting may be an index indicating how much the idle control torque request should be shaped.
- the weighting or the index can be represented by a numerical value, for example. For example, the greater the value, the greater the value of the torque requirement of the idling control, or vice versa. Other conversions of a weighting are conceivable.
- the engine controller may be configured to have one of the weights
- the situation detection may be on one or more of the following
- Information is based on the condition of the driveline, actual speed, speed reference,
- the weighting can be determined, which determines to what extent a moment shaping of the
- the invention also relates to an engine control method in which the idle control torque request is formed in response to situation detection, and to a computer program comprising instructions that, when executed on a processor, cause the processor to execute that engine control procedure.
- the engine control method according to the invention may in particular be the use of a motor controller with one or more of those described in this illustration
- the device according to the invention can be used in all vehicles having an idle control, eg in motor vehicles with internal combustion engine, wherein it can be a purely driven by an internal combustion engine motor vehicle or a hybrid vehicle kan.
- Fig. 1 shows a schematic representation of an embodiment of a motor controller according to the present invention
- Fig. 2a shows a first embodiment for continuous weighting
- Fig. 2b shows a second embodiment for continuous weighting
- Fig. 3 shows an exemplary embodiment of the implementation of a weighting index for influencing the moment shaping.
- Fig. 1 shows a schematic representation of an embodiment of a motor controller according to the present invention.
- the engine control unit 1 comprises an evaluation unit 2, which carries out a continuous (or stepless) evaluation of input variables 5 by means of a situation recognition in order to determine a weighting 3 from this.
- the weighting 3 indicates a weight between the two extreme states of regulator performance 3a, in which the torque request of idle control remains unshaped, and ride comfort 3b, in which the instantaneous request of idle control is maximally shaped.
- the engine controller 1 further comprises a torque-shaping unit 4, which determines a target torque 8 from torque-shaping input variables 6 on the basis of the weighting index 3.
- a situation identification is performed for the continuous calculation of the weighting of the two components.
- the situation detection becomes
- This situation recognition serves e.g. to recognize how urgent an idle control torque request is to prevent the engine from stalling. So, for example, at great
- the state of the drive train (open, slipping, closed, ..) and the actual speed value (current speed) can be used as input variables (situation recognition input variables 5 of FIG. 1).
- the situation detection can be based on one or more of the mentioned input variables. However, it is also possible to add further input variables for situation detection.
- Fig. 2a shows a first embodiment for a continuous formation of the weighting (3 in Fig. 1).
- the speed control torque eg, idle speed controller
- M L i_ the speed control torque
- the weighting index is formed as a function of the ratio MLL MQES of the speed controller torque M L i_ to the total desired torque M G ES.
- FIG. 2 a shows an exemplary dependence of the index on the ratio M L L / M G ES.
- the index is selected as 0, ie the torque coordination completely regulates the extreme state of moment shaping (FIG. 3 b in FIG. 1).
- the idling torque is completely in this area by the
- Fig. 2b shows a further embodiment for the continuous formation of the weighting (3 in Fig. 1).
- the index is formed as a function of the speed deviation of the speedometer (n S oi_i_-nisT).
- n S oi_i_-nisT the index is selected as 0, ie the torque coordination completely regulates to the extreme state torque shaping (3b in FIG. 1).
- the idle control torque is completely formed in this area by the torque shaping.
- the index increases linearly from 0 to 1, ie there is a continuous transition between the two in this range
- FIG. 3 shows an exemplary embodiment of the implementation of a weighting index for
- Moment forming unit 4 an input torque 12 is supplied, which consists of a proportion of the driver's desired torque M F and another part of a speed control torque proportion 14.
- the torque-shaping unit 4 carries out a torque shaping of the input torque 12 supplied to it in a manner known to the person skilled in the art.
- the moment shaping can be based on known methods for increasing the ride comfort by, for example
- the torque-shaping unit 4 accepts, as input variable 12, a torque that is formed by adding the driver-desired torque M F to a speed-control torque component 14.
- the driver's desired torque M F is the torque-shaping unit 4 fed directly, so is always shaped.
- Weighting factor 3 is obtained by subtracting weighting index 3 (index from situation recognition) from the one in a subtraction unit 8. It is assumed that weighting index 3 lies in a value range from zero to one, as described above in connection with situation recognition , Consequently, the lies
- modified weighting index 3 ' also in a value range from zero to one.
- the modified weighting index 3 ' represents a kind of "reversal" of the weighting index 3.
- the torque-shaping unit 4 forms next to the driver's request M F
- Output torque 7 is output as the setpoint torque.
- the driver command torque M F is therefore always formed by the torque-shaping unit 4, whereas the speed-control torque M L i_ is formed by the torque-shaping unit 4 only to a proportion M L i_ ⁇ (1-index).
- the residual portion M L i_ x index is passed past the torque-shaping unit 4. Consequently, the
- the motor control shown thus offers a situation evaluation, which leads to a
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)
- Electric Propulsion And Braking For Vehicles (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017200296.4A DE102017200296A1 (de) | 2017-01-10 | 2017-01-10 | Motorsteuerung, Motorsteuerungsverfahren und entsprechendes Computerprogramm |
| PCT/EP2017/083422 WO2018130384A1 (de) | 2017-01-10 | 2017-12-19 | Motorsteuerung, motorsteuerungsverfahren und entsprechendes computerprogramm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3568582A1 true EP3568582A1 (de) | 2019-11-20 |
| EP3568582B1 EP3568582B1 (de) | 2021-05-19 |
Family
ID=60888410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17822653.6A Active EP3568582B1 (de) | 2017-01-10 | 2017-12-19 | Motorsteuerung, motorsteuerungsverfahren und entsprechendes computerprogramm |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3568582B1 (de) |
| DE (1) | DE102017200296A1 (de) |
| WO (1) | WO2018130384A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10135078A1 (de) * | 2001-07-19 | 2003-02-06 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Betreiben eines Antriebsmotors eines Fahrzeugs |
| DE10135143A1 (de) * | 2001-07-19 | 2003-01-30 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Betreiben eines Antriebsmotors |
| DE10135077A1 (de) * | 2001-07-19 | 2003-02-06 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Betreiben eines Antriebsmotors eines Fahrzeugs |
| DE102004060527A1 (de) * | 2004-12-16 | 2006-06-22 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Antriebseinheit |
| DE102010040279A1 (de) * | 2010-09-06 | 2012-03-08 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben einer Antriebseinheit eines Kraftfahrzeuges |
| FR3012847B1 (fr) | 2013-11-06 | 2016-01-01 | Peugeot Citroen Automobiles Sa | Procede d'attenuation d'un couple d'agrement curatif en cas d'activation d'un regulateur de ralenti et calculateur moteur correspondant |
-
2017
- 2017-01-10 DE DE102017200296.4A patent/DE102017200296A1/de not_active Withdrawn
- 2017-12-19 WO PCT/EP2017/083422 patent/WO2018130384A1/de not_active Ceased
- 2017-12-19 EP EP17822653.6A patent/EP3568582B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018130384A1 (de) | 2018-07-19 |
| DE102017200296A1 (de) | 2018-07-12 |
| EP3568582B1 (de) | 2021-05-19 |
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