DE102010050686A1 - Method for operating power train of vehicle, involves comparing arising wheel slip with threshold value, and feeding reduced drive torque into power train for vehicle starts when arising wheel slip exceeds threshold value - Google Patents
Method for operating power train of vehicle, involves comparing arising wheel slip with threshold value, and feeding reduced drive torque into power train for vehicle starts when arising wheel slip exceeds threshold value Download PDFInfo
- Publication number
- DE102010050686A1 DE102010050686A1 DE102010050686A DE102010050686A DE102010050686A1 DE 102010050686 A1 DE102010050686 A1 DE 102010050686A1 DE 102010050686 A DE102010050686 A DE 102010050686A DE 102010050686 A DE102010050686 A DE 102010050686A DE 102010050686 A1 DE102010050686 A1 DE 102010050686A1
- Authority
- DE
- Germany
- Prior art keywords
- threshold value
- wheel slip
- arising
- vehicle
- drive torque
- 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.)
- Ceased
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/11—Stepped gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18027—Drive off, accelerating from standstill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/215—Selection or confirmation of options
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/26—Wheel slip
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betrieb eines Antriebsstranges eines Fahrzeuges gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for operating a drive train of a vehicle according to the preamble of
In der
Der Erfindung liegt die Aufgabe zugrunde, ein gegenüber dem Stand der Technik verbessertes Verfahren zum Betrieb eines Antriebsstranges eines Fahrzeuges anzugeben, anhand dessen insbesondere ein auftretender Radschlupf an die Fahrbahnbedingungen anpassbar ist und eine Beschleunigungszeit des Fahrzeugs weiter verringert werden kann.The invention has for its object to provide a comparison with the prior art improved method for operating a drive train of a vehicle, based on which in particular an occurring wheel slip is adaptable to the road conditions and an acceleration time of the vehicle can be further reduced.
Hinsichtlich des Verfahrens wird die Aufgabe erfindungsgemäß durch die im Anspruch 1 angegebenen Merkmale gelöst.With regard to the method, the object is achieved by the features specified in
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Untersprüche.Advantageous embodiments of the invention are the subject of the claims.
Beim Verfahren zum Betrieb eines Antriebsstranges eines Fahrzeuges wird mindestens eine Antriebsmaschine mittels einer Kupplung, insbesondere einer automatisierten Anfahrkupplung, mit einem automatisierten oder automatischen Getriebe gekoppelt und eine Ansteuerung des Antriebsstranges erfolgt mittels einer Steuereinheit.In the method for operating a drive train of a vehicle, at least one drive machine is coupled to an automated or automatic transmission by means of a clutch, in particular an automated start clutch, and control of the drive train is effected by means of a control unit.
Erfindungsgemäß wird bei einem ersten Fahrzeugstart ein auftretender Radschlupf eines jeden Antriebsrades ermittelt und mit einem Schwellwert verglichen, wobei bei Überschreiten des Schwellwertes jeweils ein verringertes Antriebsmoment bei einem oder mehreren darauffolgenden Fahrzeugstarts in den Antriebsstrang eingespeist wird. Daraus resultiert in vorteilhafter Weise, dass durch einige wenige Fahrzeugstarts der Radschlupf an einen Reibwert einer Fahrbahn angepasst werden kann. Somit wird mittels mehrerer Fahrzeugstarts ein optimiertes Antriebsmoment ermittelt, mit welchem für die aktuell vorherrschenden Reibverhältnisse auf der Fahrbahn die schnellste Fahrzeugbeschleunigung erzielt werden kann. Auf diese Weise wird beispielsweise eine Beschleunigungszeit des Fahrzeugs signifikant verringert.According to the invention, an occurring wheel slip of each drive wheel is determined at a first vehicle start and compared with a threshold, wherein when the threshold value is exceeded in each case a reduced drive torque is fed in one or more subsequent vehicle starts in the drive train. This results in an advantageous manner that by a few vehicle starts the wheel slip can be adapted to a coefficient of friction of a road. Thus, an optimized drive torque is determined by means of multiple vehicle starts, with which the fastest vehicle acceleration can be achieved for the currently prevailing friction conditions on the road. In this way, for example, an acceleration time of the vehicle is significantly reduced.
In einer vorteilhaften Ausführungsform der Erfindung ist ein Motoreingriff zur Reduktion des in den Antriebsstrang eingespeisten Antriebsmoments zum Schlupfabbau oder zur Schlupfverringerung an den Antriebsrädern sicher verhindert. Ein solcher herkömmlicher Motoreingriff erfolgt zu langsam und vergrößert die Beschleunigungszeit des Fahrzeugs.In an advantageous embodiment of the invention, an engine intervention for the reduction of the drive torque fed into the drive train for slip reduction or slip reduction at the drive wheels is reliably prevented. Such a conventional engine intervention is too slow and increases the acceleration time of the vehicle.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand von Zeichnungen näher erläutert.Embodiments of the invention are explained in more detail below with reference to drawings.
Dabei zeigen:Showing:
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided in all figures with the same reference numerals.
In
Zwischen der Antriebsmaschine
Die Kraftübertragungseinrichtung
In einer möglichen Ausführungsform kann die Antriebsmaschine
Die Kupplung
Die Steuereinheit
In der Steuereinheit
In
Im Betrieb des Verfahrens wird bei einem ersten Fahrzeugstart zum Zeitpunkt t0 die Motordrehzahl n der Antriebsmaschine
Zum Zeitpunkt t2 wird die Kupplung
Mit dem Schließen der Kupplung
Aus diesem Antriebsmoment M resultiert eine Radschlupf R an den Antriebsrädern
Bei einem darauffolgenden Fahrzeugstart wird somit ein reduziertes Antriebsmoment M1 von der Antriebsmaschine
Das Verfahren ist beliebig oft wiederholbar, bis ein Radschlupf R, welcher im Bereich des Schwellwerts S liegt, an den Antriebsrädern
In einer alternativen Ausführungsform ist der Schwellwert S in der Steuereinheit
Wird von der Steuereinheit
Die Variation, also das Verringern oder das Erhöhen, des in den Antriebsstrang
Eine Schrittweite der Erhöhung oder Verringerung des Antriebsmoments M wird dabei in der Steuereinheit
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19653855 C1 [0002] DE 19653855 C1 [0002]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010050686A DE102010050686A1 (en) | 2010-11-06 | 2010-11-06 | Method for operating power train of vehicle, involves comparing arising wheel slip with threshold value, and feeding reduced drive torque into power train for vehicle starts when arising wheel slip exceeds threshold value |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010050686A DE102010050686A1 (en) | 2010-11-06 | 2010-11-06 | Method for operating power train of vehicle, involves comparing arising wheel slip with threshold value, and feeding reduced drive torque into power train for vehicle starts when arising wheel slip exceeds threshold value |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010050686A1 true DE102010050686A1 (en) | 2012-05-10 |
Family
ID=45971076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010050686A Ceased DE102010050686A1 (en) | 2010-11-06 | 2010-11-06 | Method for operating power train of vehicle, involves comparing arising wheel slip with threshold value, and feeding reduced drive torque into power train for vehicle starts when arising wheel slip exceeds threshold value |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010050686A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2582036A (en) * | 2018-08-27 | 2020-09-09 | Bosch Gmbh Robert | Method for controlling a starting procedure |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19653855C1 (en) | 1996-12-21 | 1998-04-23 | Mannesmann Sachs Ag | Clutch control for motor vehicle |
-
2010
- 2010-11-06 DE DE102010050686A patent/DE102010050686A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19653855C1 (en) | 1996-12-21 | 1998-04-23 | Mannesmann Sachs Ag | Clutch control for motor vehicle |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2582036A (en) * | 2018-08-27 | 2020-09-09 | Bosch Gmbh Robert | Method for controlling a starting procedure |
GB2582036B (en) * | 2018-08-27 | 2023-05-24 | Bosch Gmbh Robert | Method for controlling a starting procedure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2193060B1 (en) | Method for the operation of a drive train | |
DE102011087016B4 (en) | Device for controlling a motor vehicle drive train | |
DE102005035303B4 (en) | Method for controlling a start-up process of a motor vehicle that can be selected by the driver | |
DE102012102342A1 (en) | Procedure for starting the engine | |
DE102006036755A1 (en) | A method of operating a vehicle powertrain during an activated engine start-stop function | |
DE102007019729A1 (en) | Method for operating a drive train | |
DE102017223274A1 (en) | Method for operating a drive train of a motor vehicle | |
DE102010001282A1 (en) | Method for controlling drive system of car, involves introducing control process of transducer lockup clutch under consideration of threshold value that is predetermined as control difference rotation speed | |
DE102007043586A1 (en) | Hybrid vehicle's drive unit controlling method, involves adjusting creep speed by electrical machine depending on available braking demand, where creep speed is maintained according to shortfall of braking demand | |
DE102012102276A1 (en) | Method for adaptation of torque transferred by separation clutch of motor car during operating motor car in e.g. engine starting situations, involves carrying out adaptation of torque according to torque or angular momentum balance | |
DE102009032745A1 (en) | Method for adapting a drive torque | |
DE102011116311A1 (en) | Method for controlling and/or regulating friction unit, involves comparing actual and desired friction coefficients of friction unit for actuating friction unit based on determined deviation | |
DE102010050686A1 (en) | Method for operating power train of vehicle, involves comparing arising wheel slip with threshold value, and feeding reduced drive torque into power train for vehicle starts when arising wheel slip exceeds threshold value | |
DE102006058194A1 (en) | Operation control method for clutch in vehicle drive line, involves lowering target engine speed when detected driven wheel slip is over given threshold | |
DE102011018395A1 (en) | Method for controlling and/or regulating clutch in drive train of hybrid vehicle, involves detecting and evaluating rotation speed gradient by control unit, and adapting clutch characteristic curve to evaluated speed gradient | |
DE102008064291A1 (en) | Vehicle i.e. hybrid vehicle, has electrical machine indirectly connected with transmission, where electrical machine and internal-combustion engine are connected by separation clutch i.e. dosed proportional clutch, in detachable manner | |
DE102007023857A1 (en) | Engine torque i.e. toque of drive machine such as internal combustion engine, reducing method for motor vehicle, involves reducing engine torque with closed clutch based on difference between engine and gear input speeds | |
DE102008040661B4 (en) | Method for operating a drive train | |
EP3710299B1 (en) | Method for determining clutch parameters of an automatic transmission having at least one clutch | |
EP1762740B1 (en) | Method and device to control the operation of a clutch and an engine in a vehicle transmission | |
DE102018117310A1 (en) | Method for improving the accuracy when determining the contact point of an automated clutch in a motor vehicle with an internal combustion engine | |
DE102010001975A1 (en) | Method for operating drive train of motor car, involves completely opening clutch and reducing speed default signal or torque default signal during occurrence of event when rotational torque of drive unit reaches or exceeds threshold value | |
DE102016208662A1 (en) | A method of operating a powertrain component or powertrain for a hybrid vehicle | |
DE102010007104A1 (en) | Method for operating drive train of motor vehicle, involves producing grip between drive machine and driving wheels to reduce engine speed, and feeding supplementary dynamic drive torque into drive train | |
DE102008001278A1 (en) | Method for operating drive train of motor vehicle, involves driving electric motor of hybrid drive with speed by actuating brake pedal for electromotive starting, when internal combustion engine is switched off and clutch is opened |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R081 | Change of applicant/patentee |
Owner name: VITESCO TECHNOLOGIES GERMANY GMBH, DE Free format text: FORMER OWNERS: CONTI TEMIC MICROELECTRONIC GMBH, 90411 NUERNBERG, DE; DAIMLER AG, 70327 STUTTGART, DE Owner name: CONTI TEMIC MICROELECTRONIC GMBH, DE Free format text: FORMER OWNERS: CONTI TEMIC MICROELECTRONIC GMBH, 90411 NUERNBERG, DE; DAIMLER AG, 70327 STUTTGART, DE |
|
R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: VITESCO TECHNOLOGIES GERMANY GMBH, DE Free format text: FORMER OWNER: CONTI TEMIC MICROELECTRONIC GMBH, 90411 NUERNBERG, DE |
|
R084 | Declaration of willingness to licence | ||
R081 | Change of applicant/patentee |
Owner name: VITESCO TECHNOLOGIES GERMANY GMBH, DE Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GERMANY GMBH, 30165 HANNOVER, DE |
|
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |