EP2160524A1 - Procédé et dispositif pour commander l'arrêt en marche à vide d'un véhicule - Google Patents

Procédé et dispositif pour commander l'arrêt en marche à vide d'un véhicule

Info

Publication number
EP2160524A1
EP2160524A1 EP08760048A EP08760048A EP2160524A1 EP 2160524 A1 EP2160524 A1 EP 2160524A1 EP 08760048 A EP08760048 A EP 08760048A EP 08760048 A EP08760048 A EP 08760048A EP 2160524 A1 EP2160524 A1 EP 2160524A1
Authority
EP
European Patent Office
Prior art keywords
braking torque
clutch
combustion engine
internal combustion
vehicle
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.)
Withdrawn
Application number
EP08760048A
Other languages
German (de)
English (en)
Inventor
Florian Schneider
Thomas JÄGER
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen 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.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP2160524A1 publication Critical patent/EP2160524A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/08—Regulating clutch take-up on starting
    • 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
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • 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
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18109—Braking
    • 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
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18072—Coasting
    • B60W2030/1809—Without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/306—Signal inputs from the engine
    • F16D2500/3065—Torque of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/31—Signal inputs from the vehicle
    • F16D2500/3108—Vehicle speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/504—Relating the engine
    • F16D2500/5048—Stall prevention
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect

Definitions

  • the present invention relates to an apparatus and a method for controlling a drive train according to the preamble of the independent claims.
  • a powertrain of a vehicle includes an engine, a transmission, a clutch disposed between the engine and the transmission, and at least one wheel.
  • a transmission control is additionally available.
  • a communication bus is also provided to allow communication of the powertrain components.
  • at least one brake is present, which may be a service brake as well as an additional brake of some kind.
  • an additional braking torque is added to the braking torque of the drive train downstream of the clutch as soon as the clutch is opened.
  • the braking torque of the drive train downstream of the clutch is composed, for example, of the drag torques of the transmission, an axle and / or one or more brakes.
  • the added additional braking torque corresponds to the braking torque of the internal combustion engine to the wheel of the drive train at the moment or immediately before the moment in which the engine is decoupled from the clutch downstream powertrain by opening the clutch.
  • a communication bus transmits the instantaneous torque of the engine to the transmission control several times per second.
  • the last determined torque before the opening of the clutch is converted by means of the transmission control to a braking torque, which causes the internal combustion engine to the wheel.
  • the calculated value is used to be able to add an exact additional braking torque to the drive train downstream of the clutch.
  • the additional braking torque is generated by a service brake and / or a hydrodynamic brake and / or a hydrostatic brake and / or a transmission brake.
  • the additional braking torque is withdrawn when the vehicle is at a standstill so that an immediate onward movement is then made possible. Furthermore, the additional braking torque after a predetermined time function, such as a ramp, gradually be withdrawn.
  • the driver has time to respond appropriately to the elimination of the braking torque of the engine.
  • the additional braking torque is withdrawn at the latest when an acceleration request of the driver is detected, for example by a torque request from the internal combustion engine.
  • the additional braking torque is added only when a stop request of the driver is detected. This also allows a slow roll out of the vehicle can be realized.
  • Fig. 1 is a highly schematic representation of a drive train
  • FIG. 1 is a highly schematic representation of a drive train 1, comprising a clutch 3 between an internal combustion engine 2 and a transmission 4.
  • the transmission 4 is connected to two drive wheels 5 and a service brake 6 is disposed at the wheels 5.
  • the drive train 1 has a transmission control 8 and a communication bus 7, wherein the communication bus 7 connects the components of the drive train 1 and enables communication between them.
  • step 1 the question arises whether the minimum speed of the vehicle is reached at which a stalling of the internal combustion engine 2 threatens. If the minimum speed is not reached, step 1 repeats itself. If the question of step 1 1 is answered in the affirmative, steps 12, 13, 14 and 15, which take place within a narrow period of time, are triggered. At or shortly before reaching the minimum speed opening of the clutch 3 takes place in step 14 to avoid stalling of the internal combustion engine 2.
  • step 12 Through the communication bus 6, the torque of the internal combustion engine 2 is imparted to the transmission control 8 several times per second and is shown in step 12.
  • the last mediated torque of the internal combustion engine 2 before opening the clutch 3 is used by the transmission controller 8 to calculate the braking torque with which the internal combustion engine 2 acts on the wheels 4, the calculation is shown in step 13.
  • the calculated additional braking torque is added by the service brake 6 to the drive train 1 in step 15 such that no difference in the rolling resistance of the vehicle is detected by the driver.
  • the additional braking torque is canceled again if one of the criteria is fulfilled: • Step 16, vehicle is stationary, • Step 17, an acceleration request of the driver is detected or
  • Step 18 a time function has expired.
  • a service brake is used to add the additional braking torque.
  • Other powertrain brakes are not excluded from the spirit of the invention, for example, a hydrodynamic brake or a hydrostatic brake or a combination of several different brakes may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Automation & Control Theory (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Control Of Transmission Device (AREA)

Abstract

Conformément à l'invention, à partir de l'ouverture de l'embrayage (3), un couple de freinage supplémentaire est ajouté au couple de freinage de la chaîne de transmission placée après l'embrayage (3). Le couple de freinage de la chaîne de transmission placée après l'embrayage (3) comprend par exemple le couple d'entraînement de la boîte de vitesses (4), d'un essieu et/ou d'un ou de plusieurs freins (6). Le couple de freinage supplémentaire ajouté correspond au couple de freinage du moteur à combustion interne (2) sur la roue (5) de la chaîne de transmission (1) à l'instant ou immédiatement avant l'instant auquel le moteur à combustion interne (2) est désaccouplé de la chaîne de transmission placée après l'embrayage (3) par l'ouverture de l'embrayage (3). Grâce à l'ajout du couple de freinage supplémentaire à la chaîne de transmission placée après l'embrayage (3), le couple de freinage total agissant sur la roue (5) est conservé aussi bien avant l'ouverture qu'après l'ouverture de l'embrayage (3). Ainsi, on obtient une augmentation du confort de conduite du véhicule ainsi qu'une augmentation de la sécurité car il ne se produit aucune modification brutale de la résistance au roulement du véhicule. Ainsi, le véhicule peut avancer en roue libre ou ralentir jusqu'à l'arrêt de manière douce.
EP08760048A 2007-06-30 2008-05-27 Procédé et dispositif pour commander l'arrêt en marche à vide d'un véhicule Withdrawn EP2160524A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007030489A DE102007030489A1 (de) 2007-06-30 2007-06-30 Verfahren und Vorrichtung zur Steuerung eines Ausrollens eines Fahrzeuges
PCT/EP2008/056450 WO2009003769A1 (fr) 2007-06-30 2008-05-27 Procédé et dispositif pour commander l'arrêt en marche à vide d'un véhicule

Publications (1)

Publication Number Publication Date
EP2160524A1 true EP2160524A1 (fr) 2010-03-10

Family

ID=39689199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08760048A Withdrawn EP2160524A1 (fr) 2007-06-30 2008-05-27 Procédé et dispositif pour commander l'arrêt en marche à vide d'un véhicule

Country Status (4)

Country Link
US (1) US20100185368A1 (fr)
EP (1) EP2160524A1 (fr)
DE (1) DE102007030489A1 (fr)
WO (1) WO2009003769A1 (fr)

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DE102013204411A1 (de) * 2013-03-14 2014-09-18 Zf Friedrichshafen Ag Verfahren zur Durchführung von Schubrückschaltungen mit Beteiligung eines formschlüssigen Schaltelementes bei einem Automatgetriebe umfassend eine Wandlerüberbrückungskupplung
US9008929B1 (en) 2013-09-26 2015-04-14 GM Global Technology Operations LLC Method for controlling a powertrain and a transmission system
DE102014200362A1 (de) * 2014-01-10 2015-07-16 Bayerische Motoren Werke Aktiengesellschaft Aktiver Bremsausgleich bei Automatikgetrieben
US9792579B2 (en) 2014-10-28 2017-10-17 MetaBrite, Inc. Capturing product details of purchases
CN108290570B (zh) 2015-11-04 2021-12-21 卡明斯公司 传动系脱离和滑行管理
US10417488B2 (en) 2017-07-06 2019-09-17 Blinkreceipt, Llc Re-application of filters for processing receipts and invoices
DE102020131157A1 (de) 2020-11-25 2022-05-25 Audi Aktiengesellschaft Antriebsvorrichtung für ein Kraftfahrzeug

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Also Published As

Publication number Publication date
WO2009003769A1 (fr) 2009-01-08
DE102007030489A1 (de) 2009-01-02
US20100185368A1 (en) 2010-07-22

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